ElasticSearch入门-增删改查(CRUD)

浅浅的花香味﹌ 2022-07-12 03:29 333阅读 0赞

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 ElasticSearch(名称太长，后面简称ES)作为一个搜索引擎，目前可谓是如日中天，几乎和solr齐驾并驱。关于他能做什么，跟云计算有什么关系，在此不再描述。但是ES的官方文档，特别是关于java的客户端文档，真是少的可怜，甚至连个完整的增删改的示例都没有。在此，我就献丑了。 
 在开始讲解之前，还是先做个铺垫，为了能够有一个可以索引的模型，我们自定义了一个模型，暂时起个名称叫LogModel吧，这个模型有各种数据类型，int,long,String,list，但千万不要认为这是跟记录日志有关的一个模型。作为索引的一个最简单模型。代码如下： 
 <div style="margin:0px 0px 0px 9px; padding:1px; vertical-align:middle; font-family:monaco,'dejavu sans mono','bitstream vera sans mono',consolas,'courier new',monospace; font-size:12px; width:679px; overflow:auto; word-break:break-all; word-wrap:break-word; line-height:25px"> 
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 Java代码 
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 <ol style="margin:0px 0px 1px; padding:2px 0px; list-style:none; vertical-align:middle; font-size:1em; line-height:1.4em; border:1px solid rgb(209,215,220); color:rgb(43,145,175)"> 
 <li style="margin:0px 0px 0px 38px; padding:0px 0px 0px 10px; vertical-align:middle; font-size:1em; border-left-width:1px; border-left-style:solid; border-left-color:rgb(209,215,220); line-height:18px; background-color:rgb(250,250,250)"> import&nbsp;java.util.ArrayList; &nbsp; </li> 
 <li style="margin:0px 0px 0px 38px; padding:0px 0px 0px 10px; vertical-align:middle; font-size:1em; border-left-width:1px; border-left-style:solid; border-left-color:rgb(209,215,220); line-height:18px; background-color:rgb(250,250,250)"> import&nbsp;java.util.List; &nbsp; </li> 
 <li style="margin:0px 0px 0px 38px; padding:0px 0px 0px 10px; vertical-align:middle; font-size:1em; border-left-width:1px; border-left-style:solid; border-left-color:rgb(209,215,220); line-height:18px; background-color:rgb(250,250,250)"> import&nbsp;java.util.Random; &nbsp; </li> 
 <li style="margin:0px 0px 0px 38px; padding:0px 0px 0px 10px; vertical-align:middle; font-size:1em; border-left-width:1px; border-left-style:solid; border-left-color:rgb(209,215,220); line-height:18px; background-color:rgb(250,250,250)"> import&nbsp;java.util.UUID; &nbsp; </li> 
 <li style="margin:0px 0px 0px 38px; padding:0px 0px 0px 10px; vertical-align:middle; font-size:1em; border-left-width:1px; border-left-style:solid; border-left-color:rgb(209,215,220); line-height:18px; background-color:rgb(250,250,250)"> /** </li> 
 <li style="margin:0px 0px 0px 38px; padding:0px 0px 0px 10px; vertical-align:middle; font-size:1em; border-left-width:1px; border-left-style:solid; border-left-color:rgb(209,215,220); line-height:18px; background-color:rgb(250,250,250)"> * 瞎编的一个模型，跟日志基本没有关系 </li> 
 <li style="margin:0px 0px 0px 38px; padding:0px 0px 0px 10px; vertical-align:middle; font-size:1em; border-left-width:1px; border-left-style:solid; border-left-color:rgb(209,215,220); line-height:18px; background-color:rgb(250,250,250)"> * @author donlian </li> 
 <li style="margin:0px 0px 0px 38px; padding:0px 0px 0px 10px; vertical-align:middle; font-size:1em; border-left-width:1px; border-left-style:solid; border-left-color:rgb(209,215,220); line-height:18px; background-color:rgb(250,250,250)"> */&nbsp;&nbsp; </li> 
 <li style="margin:0px 0px 0px 38px; padding:0px 0px 0px 10px; vertical-align:middle; font-size:1em; border-left-width:1px; border-left-style:solid; border-left-color:rgb(209,215,220); line-height:18px; background-color:rgb(250,250,250)"> public&nbsp;class&nbsp;LogModel { &nbsp; </li> 
 <li style="margin:0px 0px 0px 38px; padding:0px 0px 0px 10px; vertical-align:middle; font-size:1em; border-left-width:1px; border-left-style:solid; border-left-color:rgb(209,215,220); line-height:18px; background-color:rgb(250,250,250)"> &nbsp; &nbsp;//主ID&nbsp;&nbsp; </li> 
 <li style="margin:0px 0px 0px 38px; padding:0px 0px 0px 10px; vertical-align:middle; font-size:1em; border-left-width:1px; border-left-style:solid; border-left-color:rgb(209,215,220); line-height:18px; background-color:rgb(250,250,250)"> &nbsp; &nbsp;private&nbsp;long&nbsp;id; &nbsp; </li> 
 <li style="margin:0px 0px 0px 38px; padding:0px 0px 0px 10px; vertical-align:middle; font-size:1em; border-left-width:1px; border-left-style:solid; border-left-color:rgb(209,215,220); line-height:18px; background-color:rgb(250,250,250)"> &nbsp; &nbsp;//次ID&nbsp;&nbsp; </li> 
 <li style="margin:0px 0px 0px 38px; padding:0px 0px 0px 10px; vertical-align:middle; font-size:1em; border-left-width:1px; border-left-style:solid; border-left-color:rgb(209,215,220); line-height:18px; background-color:rgb(250,250,250)"> &nbsp; &nbsp;private&nbsp;int&nbsp;subId; &nbsp; </li> 
 <li style="margin:0px 0px 0px 38px; padding:0px 0px 0px 10px; vertical-align:middle; font-size:1em; border-left-width:1px; border-left-style:solid; border-left-color:rgb(209,215,220); line-height:18px; background-color:rgb(250,250,250)"> &nbsp; &nbsp;/** </li> 
 <li style="margin:0px 0px 0px 38px; padding:0px 0px 0px 10px; vertical-align:middle; font-size:1em; border-left-width:1px; border-left-style:solid; border-left-color:rgb(209,215,220); line-height:18px; background-color:rgb(250,250,250)"> &nbsp; &nbsp; * 系统名称 </li> 
 <li style="margin:0px 0px 0px 38px; padding:0px 0px 0px 10px; vertical-align:middle; font-size:1em; border-left-width:1px; border-left-style:solid; border-left-color:rgb(209,215,220); line-height:18px; background-color:rgb(250,250,250)"> &nbsp; &nbsp; */&nbsp;&nbsp; </li> 
 <li style="margin:0px 0px 0px 38px; padding:0px 0px 0px 10px; vertical-align:middle; font-size:1em; border-left-width:1px; border-left-style:solid; border-left-color:rgb(209,215,220); line-height:18px; background-color:rgb(250,250,250)"> &nbsp; &nbsp;private&nbsp;String systemName; &nbsp; </li> 
 <li style="margin:0px 0px 0px 38px; padding:0px 0px 0px 10px; vertical-align:middle; font-size:1em; border-left-width:1px; border-left-style:solid; border-left-color:rgb(209,215,220); line-height:18px; background-color:rgb(250,250,250)"> &nbsp; &nbsp;private&nbsp;String host; &nbsp; </li> 
 <li style="margin:0px 0px 0px 38px; padding:0px 0px 0px 10px; vertical-align:middle; font-size:1em; border-left-width:1px; border-left-style:solid; border-left-color:rgb(209,215,220); line-height:18px; background-color:rgb(250,250,250)"> &nbsp; &nbsp; &nbsp; </li> 
 <li style="margin:0px 0px 0px 38px; padding:0px 0px 0px 10px; vertical-align:middle; font-size:1em; border-left-width:1px; border-left-style:solid; border-left-color:rgb(209,215,220); line-height:18px; background-color:rgb(250,250,250)"> &nbsp; &nbsp;//日志描述&nbsp;&nbsp; </li> 
 <li style="margin:0px 0px 0px 38px; padding:0px 0px 0px 10px; vertical-align:middle; font-size:1em; border-left-width:1px; border-left-style:solid; border-left-color:rgb(209,215,220); line-height:18px; background-color:rgb(250,250,250)"> &nbsp; &nbsp;private&nbsp;String desc; &nbsp; </li> 
 <li style="margin:0px 0px 0px 38px; padding:0px 0px 0px 10px; vertical-align:middle; font-size:1em; border-left-width:1px; border-left-style:solid; border-left-color:rgb(209,215,220); line-height:18px; background-color:rgb(250,250,250)"> &nbsp; &nbsp;private&nbsp;List&lt;Integer&gt; catIds; &nbsp; </li> 
 <li style="margin:0px 0px 0px 38px; padding:0px 0px 0px 10px; vertical-align:middle; font-size:1em; border-left-width:1px; border-left-style:solid; border-left-color:rgb(209,215,220); line-height:18px; background-color:rgb(250,250,250)"> &nbsp; &nbsp;public&nbsp;LogModel(){ &nbsp; </li> 
 <li style="margin:0px 0px 0px 38px; padding:0px 0px 0px 10px; vertical-align:middle; font-size:1em; border-left-width:1px; border-left-style:solid; border-left-color:rgb(209,215,220); line-height:18px; background-color:rgb(250,250,250)"> &nbsp; &nbsp; &nbsp; &nbsp;Random random =&nbsp;new&nbsp;Random(); &nbsp; </li> 
 <li style="margin:0px 0px 0px 38px; padding:0px 0px 0px 10px; vertical-align:middle; font-size:1em; border-left-width:1px; border-left-style:solid; border-left-color:rgb(209,215,220); line-height:18px; background-color:rgb(250,250,250)"> &nbsp; &nbsp; &nbsp; &nbsp;this.id = Math.abs(random.nextLong()); &nbsp; </li> 
 <li style="margin:0px 0px 0px 38px; padding:0px 0px 0px 10px; vertical-align:middle; font-size:1em; border-left-width:1px; border-left-style:solid; border-left-color:rgb(209,215,220); line-height:18px; background-color:rgb(250,250,250)"> &nbsp; &nbsp; &nbsp; &nbsp;int&nbsp;subId = Math.abs(random.nextInt()); &nbsp; </li> 
 <li style="margin:0px 0px 0px 38px; padding:0px 0px 0px 10px; vertical-align:middle; font-size:1em; border-left-width:1px; border-left-style:solid; border-left-color:rgb(209,215,220); line-height:18px; background-color:rgb(250,250,250)"> &nbsp; &nbsp; &nbsp; &nbsp;this.subId = subId; &nbsp; </li> 
 <li style="margin:0px 0px 0px 38px; padding:0px 0px 0px 10px; vertical-align:middle; font-size:1em; border-left-width:1px; border-left-style:solid; border-left-color:rgb(209,215,220); line-height:18px; background-color:rgb(250,250,250)"> &nbsp; &nbsp; &nbsp; &nbsp;List&lt;Integer&gt; list =&nbsp;new&nbsp;ArrayList&lt;Integer&gt;(5); &nbsp; </li> 
 <li style="margin:0px 0px 0px 38px; padding:0px 0px 0px 10px; vertical-align:middle; font-size:1em; border-left-width:1px; border-left-style:solid; border-left-color:rgb(209,215,220); line-height:18px; background-color:rgb(250,250,250)"> &nbsp; &nbsp; &nbsp; &nbsp;for(int&nbsp;i=0;i&lt;5;i++){ &nbsp; </li> 
 <li style="margin:0px 0px 0px 38px; padding:0px 0px 0px 10px; vertical-align:middle; font-size:1em; border-left-width:1px; border-left-style:solid; border-left-color:rgb(209,215,220); line-height:18px; background-color:rgb(250,250,250)"> &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;list.add(Math.abs(random.nextInt())); &nbsp; </li> 
 <li style="margin:0px 0px 0px 38px; padding:0px 0px 0px 10px; vertical-align:middle; font-size:1em; border-left-width:1px; border-left-style:solid; border-left-color:rgb(209,215,220); line-height:18px; background-color:rgb(250,250,250)"> &nbsp; &nbsp; &nbsp; &nbsp;} &nbsp; </li> 
 <li style="margin:0px 0px 0px 38px; padding:0px 0px 0px 10px; vertical-align:middle; font-size:1em; border-left-width:1px; border-left-style:solid; border-left-color:rgb(209,215,220); line-height:18px; background-color:rgb(250,250,250)"> &nbsp; &nbsp; &nbsp; &nbsp;this.catIds = list; &nbsp; </li> 
 <li style="margin:0px 0px 0px 38px; padding:0px 0px 0px 10px; vertical-align:middle; font-size:1em; border-left-width:1px; border-left-style:solid; border-left-color:rgb(209,215,220); line-height:18px; background-color:rgb(250,250,250)"> &nbsp; &nbsp; &nbsp; &nbsp;this.systemName = subId%1&nbsp;==&nbsp;0?"oa":"cms"; &nbsp; </li> 
 <li style="margin:0px 0px 0px 38px; padding:0px 0px 0px 10px; vertical-align:middle; font-size:1em; border-left-width:1px; border-left-style:solid; border-left-color:rgb(209,215,220); line-height:18px; background-color:rgb(250,250,250)"> &nbsp; &nbsp; &nbsp; &nbsp;this.host = subId%1&nbsp;==&nbsp;0?"10.0.0.1":"10.2.0.1"; &nbsp; </li> 
 <li style="margin:0px 0px 0px 38px; padding:0px 0px 0px 10px; vertical-align:middle; font-size:1em; border-left-width:1px; border-left-style:solid; border-left-color:rgb(209,215,220); line-height:18px; background-color:rgb(250,250,250)"> &nbsp; &nbsp; &nbsp; &nbsp;this.desc =&nbsp;"中文"&nbsp;+ UUID.randomUUID().toString(); &nbsp; </li> 
 <li style="margin:0px 0px 0px 38px; padding:0px 0px 0px 10px; vertical-align:middle; font-size:1em; border-left-width:1px; border-left-style:solid; border-left-color:rgb(209,215,220); line-height:18px; background-color:rgb(250,250,250)"> &nbsp; &nbsp;} &nbsp; </li> 
 <li style="margin:0px 0px 0px 38px; padding:0px 0px 0px 10px; vertical-align:middle; font-size:1em; border-left-width:1px; border-left-style:solid; border-left-color:rgb(209,215,220); line-height:18px; background-color:rgb(250,250,250)"> &nbsp; &nbsp;public&nbsp;LogModel(long&nbsp;id,int&nbsp;subId,String sysName,String host,String desc,List&lt;Integer&gt; catIds){ &nbsp; </li> 
 <li style="margin:0px 0px 0px 38px; padding:0px 0px 0px 10px; vertical-align:middle; font-size:1em; border-left-width:1px; border-left-style:solid; border-left-color:rgb(209,215,220); line-height:18px; background-color:rgb(250,250,250)"> &nbsp; &nbsp; &nbsp; &nbsp;this.id = id; &nbsp; </li> 
 <li style="margin:0px 0px 0px 38px; padding:0px 0px 0px 10px; vertical-align:middle; font-size:1em; border-left-width:1px; border-left-style:solid; border-left-color:rgb(209,215,220); line-height:18px; background-color:rgb(250,250,250)"> &nbsp; &nbsp; &nbsp; &nbsp;this.subId = subId; &nbsp; </li> 
 <li style="margin:0px 0px 0px 38px; padding:0px 0px 0px 10px; vertical-align:middle; font-size:1em; border-left-width:1px; border-left-style:solid; border-left-color:rgb(209,215,220); line-height:18px; background-color:rgb(250,250,250)"> &nbsp; &nbsp; &nbsp; &nbsp;this.systemName = sysName; &nbsp; </li> 
 <li style="margin:0px 0px 0px 38px; padding:0px 0px 0px 10px; vertical-align:middle; font-size:1em; border-left-width:1px; border-left-style:solid; border-left-color:rgb(209,215,220); line-height:18px; background-color:rgb(250,250,250)"> &nbsp; &nbsp; &nbsp; &nbsp;this.host = host; &nbsp; </li> 
 <li style="margin:0px 0px 0px 38px; padding:0px 0px 0px 10px; vertical-align:middle; font-size:1em; border-left-width:1px; border-left-style:solid; border-left-color:rgb(209,215,220); line-height:18px; background-color:rgb(250,250,250)"> &nbsp; &nbsp; &nbsp; &nbsp;this.desc = desc; &nbsp; </li> 
 <li style="margin:0px 0px 0px 38px; padding:0px 0px 0px 10px; vertical-align:middle; font-size:1em; border-left-width:1px; border-left-style:solid; border-left-color:rgb(209,215,220); line-height:18px; background-color:rgb(250,250,250)"> &nbsp; &nbsp; &nbsp; &nbsp;this.catIds = catIds; &nbsp; </li> 
 <li style="margin:0px 0px 0px 38px; padding:0px 0px 0px 10px; vertical-align:middle; font-size:1em; border-left-width:1px; border-left-style:solid; border-left-color:rgb(209,215,220); line-height:18px; background-color:rgb(250,250,250)"> &nbsp; &nbsp;} &nbsp; </li> 
 <li style="margin:0px 0px 0px 38px; padding:0px 0px 0px 10px; vertical-align:middle; font-size:1em; border-left-width:1px; border-left-style:solid; border-left-color:rgb(209,215,220); line-height:18px; background-color:rgb(250,250,250)"> ...//省去get,set方法&nbsp;&nbsp; </li> 
 <li style="margin:0px 0px 0px 38px; padding:0px 0px 0px 10px; vertical-align:middle; font-size:1em; border-left-width:1px; border-left-style:solid; border-left-color:rgb(209,215,220); line-height:18px; background-color:rgb(250,250,250)"> } &nbsp; </li> 
 </ol> 
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 同时，因为ES在索引的时候，一般都用json格式，因此，使用jackson定义了一个将对象转化成json的工具类，也很简单，代码： 
 <div style="margin:0px 0px 0px 9px; padding:1px; vertical-align:middle; font-family:monaco,'dejavu sans mono','bitstream vera sans mono',consolas,'courier new',monospace; font-size:12px; width:679px; overflow:auto; word-break:break-all; word-wrap:break-word; line-height:25px"> 
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 Java代码 
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 <ol style="margin:0px 0px 1px; padding:2px 0px; list-style:none; vertical-align:middle; font-size:1em; line-height:1.4em; border:1px solid rgb(209,215,220); color:rgb(43,145,175)"> 
 <li style="margin:0px 0px 0px 38px; padding:0px 0px 0px 10px; vertical-align:middle; font-size:1em; border-left-width:1px; border-left-style:solid; border-left-color:rgb(209,215,220); line-height:18px; background-color:rgb(250,250,250)"> public&nbsp;class&nbsp;ESUtils { &nbsp; </li> 
 <li style="margin:0px 0px 0px 38px; padding:0px 0px 0px 10px; vertical-align:middle; font-size:1em; border-left-width:1px; border-left-style:solid; border-left-color:rgb(209,215,220); line-height:18px; background-color:rgb(250,250,250)"> &nbsp; &nbsp;private&nbsp;static&nbsp;ObjectMapper objectMapper =&nbsp;new&nbsp;ObjectMapper(); &nbsp; </li> 
 <li style="margin:0px 0px 0px 38px; padding:0px 0px 0px 10px; vertical-align:middle; font-size:1em; border-left-width:1px; border-left-style:solid; border-left-color:rgb(209,215,220); line-height:18px; background-color:rgb(250,250,250)"> &nbsp; &nbsp;public&nbsp;static&nbsp;String toJson(Object o){ &nbsp; </li> 
 <li style="margin:0px 0px 0px 38px; padding:0px 0px 0px 10px; vertical-align:middle; font-size:1em; border-left-width:1px; border-left-style:solid; border-left-color:rgb(209,215,220); line-height:18px; background-color:rgb(250,250,250)"> &nbsp; &nbsp; &nbsp; &nbsp;try&nbsp;{ &nbsp; </li> 
 <li style="margin:0px 0px 0px 38px; padding:0px 0px 0px 10px; vertical-align:middle; font-size:1em; border-left-width:1px; border-left-style:solid; border-left-color:rgb(209,215,220); line-height:18px; background-color:rgb(250,250,250)"> &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;return&nbsp;objectMapper.writeValueAsString(o); &nbsp; </li> 
 <li style="margin:0px 0px 0px 38px; padding:0px 0px 0px 10px; vertical-align:middle; font-size:1em; border-left-width:1px; border-left-style:solid; border-left-color:rgb(209,215,220); line-height:18px; background-color:rgb(250,250,250)"> &nbsp; &nbsp; &nbsp; &nbsp;}&nbsp;catch&nbsp;(JsonProcessingException e) { &nbsp; </li> 
 <li style="margin:0px 0px 0px 38px; padding:0px 0px 0px 10px; vertical-align:middle; font-size:1em; border-left-width:1px; border-left-style:solid; border-left-color:rgb(209,215,220); line-height:18px; background-color:rgb(250,250,250)"> &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;e.printStackTrace(); &nbsp; </li> 
 <li style="margin:0px 0px 0px 38px; padding:0px 0px 0px 10px; vertical-align:middle; font-size:1em; border-left-width:1px; border-left-style:solid; border-left-color:rgb(209,215,220); line-height:18px; background-color:rgb(250,250,250)"> &nbsp; &nbsp; &nbsp; &nbsp;} &nbsp; </li> 
 <li style="margin:0px 0px 0px 38px; padding:0px 0px 0px 10px; vertical-align:middle; font-size:1em; border-left-width:1px; border-left-style:solid; border-left-color:rgb(209,215,220); line-height:18px; background-color:rgb(250,250,250)"> &nbsp; &nbsp; &nbsp; &nbsp;return&nbsp;""; &nbsp; </li> 
 <li style="margin:0px 0px 0px 38px; padding:0px 0px 0px 10px; vertical-align:middle; font-size:1em; border-left-width:1px; border-left-style:solid; border-left-color:rgb(209,215,220); line-height:18px; background-color:rgb(250,250,250)"> &nbsp; &nbsp;} &nbsp; </li> 
 <li style="margin:0px 0px 0px 38px; padding:0px 0px 0px 10px; vertical-align:middle; font-size:1em; border-left-width:1px; border-left-style:solid; border-left-color:rgb(209,215,220); line-height:18px; background-color:rgb(250,250,250)"> } &nbsp; </li> 
 </ol> 
 </div> 
 
 在开始进行操作ES服务器之前，我们必须得获得ES的API，简单介绍一下ES操作服务器的两种方式，一种是使用Node方式，即本机也启动一个ES，然后跟服务器的ES进行通信，这个node甚至还能存储（奇怪，一般需要这样的方式吗？），另一种，就是下面我介绍的这一种，通过一个对象使用http协议跟服务器进行交互。 
 获得一个ES客户端API的代码如下： 
 <div style="margin:0px 0px 0px 9px; padding:1px; vertical-align:middle; font-family:monaco,'dejavu sans mono','bitstream vera sans mono',consolas,'courier new',monospace; font-size:12px; width:679px; overflow:auto; word-break:break-all; word-wrap:break-word; line-height:25px"> 
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 Java代码 
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 <ol style="margin:0px 0px 1px; padding:2px 0px; list-style:none; vertical-align:middle; font-size:1em; line-height:1.4em; border:1px solid rgb(209,215,220); color:rgb(43,145,175)"> 
 <li style="margin:0px 0px 0px 38px; padding:0px 0px 0px 10px; vertical-align:middle; font-size:1em; border-left-width:1px; border-left-style:solid; border-left-color:rgb(209,215,220); line-height:18px; background-color:rgb(250,250,250)"> Settings settings = ImmutableSettings.settingsBuilder() &nbsp; </li> 
 <li style="margin:0px 0px 0px 38px; padding:0px 0px 0px 10px; vertical-align:middle; font-size:1em; border-left-width:1px; border-left-style:solid; border-left-color:rgb(209,215,220); line-height:18px; background-color:rgb(250,250,250)"> &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;//指定集群名称&nbsp;&nbsp; </li> 
 <li style="margin:0px 0px 0px 38px; padding:0px 0px 0px 10px; vertical-align:middle; font-size:1em; border-left-width:1px; border-left-style:solid; border-left-color:rgb(209,215,220); line-height:18px; background-color:rgb(250,250,250)"> &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;.put("cluster.name",&nbsp;"elasticsearch") &nbsp; </li> 
 <li style="margin:0px 0px 0px 38px; padding:0px 0px 0px 10px; vertical-align:middle; font-size:1em; border-left-width:1px; border-left-style:solid; border-left-color:rgb(209,215,220); line-height:18px; background-color:rgb(250,250,250)"> &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;//探测集群中机器状态&nbsp;&nbsp; </li> 
 <li style="margin:0px 0px 0px 38px; padding:0px 0px 0px 10px; vertical-align:middle; font-size:1em; border-left-width:1px; border-left-style:solid; border-left-color:rgb(209,215,220); line-height:18px; background-color:rgb(250,250,250)"> &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;.put("client.transport.sniff",&nbsp;true).build(); &nbsp; </li> 
 <li style="margin:0px 0px 0px 38px; padding:0px 0px 0px 10px; vertical-align:middle; font-size:1em; border-left-width:1px; border-left-style:solid; border-left-color:rgb(209,215,220); line-height:18px; background-color:rgb(250,250,250)"> &nbsp; &nbsp; &nbsp; &nbsp;/* </li> 
 <li style="margin:0px 0px 0px 38px; padding:0px 0px 0px 10px; vertical-align:middle; font-size:1em; border-left-width:1px; border-left-style:solid; border-left-color:rgb(209,215,220); line-height:18px; background-color:rgb(250,250,250)"> &nbsp; &nbsp; &nbsp; &nbsp; * 创建客户端，所有的操作都由客户端开始，这个就好像是JDBC的Connection对象 </li> 
 <li style="margin:0px 0px 0px 38px; padding:0px 0px 0px 10px; vertical-align:middle; font-size:1em; border-left-width:1px; border-left-style:solid; border-left-color:rgb(209,215,220); line-height:18px; background-color:rgb(250,250,250)"> &nbsp; &nbsp; &nbsp; &nbsp; * 用完记得要关闭 </li> 
 <li style="margin:0px 0px 0px 38px; padding:0px 0px 0px 10px; vertical-align:middle; font-size:1em; border-left-width:1px; border-left-style:solid; border-left-color:rgb(209,215,220); line-height:18px; background-color:rgb(250,250,250)"> &nbsp; &nbsp; &nbsp; &nbsp; */&nbsp;&nbsp; </li> 
 <li style="margin:0px 0px 0px 38px; padding:0px 0px 0px 10px; vertical-align:middle; font-size:1em; border-left-width:1px; border-left-style:solid; border-left-color:rgb(209,215,220); line-height:18px; background-color:rgb(250,250,250)"> &nbsp; &nbsp; &nbsp; &nbsp;Client client =&nbsp;new&nbsp;TransportClient(settings) &nbsp; </li> 
 <li style="margin:0px 0px 0px 38px; padding:0px 0px 0px 10px; vertical-align:middle; font-size:1em; border-left-width:1px; border-left-style:solid; border-left-color:rgb(209,215,220); line-height:18px; background-color:rgb(250,250,250)"> &nbsp; &nbsp; &nbsp; &nbsp;.addTransportAddress(new&nbsp;InetSocketTransportAddress("192.168.1.106",&nbsp;9300)); &nbsp; </li> 
 </ol> 
 </div> 
 
 Client对象，可以理解为数据库的Connection对象。好了，准备工作完成，下面就开始增删改查。 
 <h1 style="margin:0px; padding:0px; vertical-align:middle">Index(增加）</h1> 
 ES里面的增加对象不叫什么add,save等，叫index。但无论叫什么名称，反正就是向ES服务器里面加数据。上面说过一个对象转json的工具类，其实ES的API中，是自带构建json的工具类的。 
 <div style="margin:0px 0px 0px 9px; padding:1px; vertical-align:middle; font-family:monaco,'dejavu sans mono','bitstream vera sans mono',consolas,'courier new',monospace; font-size:12px; width:679px; overflow:auto; word-break:break-all; word-wrap:break-word; line-height:25px"> 
 <div style="margin:0px; padding:0px; vertical-align:middle"> 
 <div style="margin:0px; padding:3px; vertical-align:middle; font-weight:bold">
 Java代码 
 </div> 
 </div> 
 <ol style="margin:0px 0px 1px; padding:2px 0px; list-style:none; vertical-align:middle; font-size:1em; line-height:1.4em; border:1px solid rgb(209,215,220); color:rgb(43,145,175)"> 
 <li style="margin:0px 0px 0px 38px; padding:0px 0px 0px 10px; vertical-align:middle; font-size:1em; border-left-width:1px; border-left-style:solid; border-left-color:rgb(209,215,220); line-height:18px; background-color:rgb(250,250,250)"> import&nbsp;org.elasticsearch.action.index.IndexResponse; &nbsp; </li> 
 <li style="margin:0px 0px 0px 38px; padding:0px 0px 0px 10px; vertical-align:middle; font-size:1em; border-left-width:1px; border-left-style:solid; border-left-color:rgb(209,215,220); line-height:18px; background-color:rgb(250,250,250)"> import&nbsp;org.elasticsearch.client.Client; &nbsp; </li> 
 <li style="margin:0px 0px 0px 38px; padding:0px 0px 0px 10px; vertical-align:middle; font-size:1em; border-left-width:1px; border-left-style:solid; border-left-color:rgb(209,215,220); line-height:18px; background-color:rgb(250,250,250)"> import&nbsp;org.elasticsearch.client.transport.TransportClient; &nbsp; </li> 
 <li style="margin:0px 0px 0px 38px; padding:0px 0px 0px 10px; vertical-align:middle; font-size:1em; border-left-width:1px; border-left-style:solid; border-left-color:rgb(209,215,220); line-height:18px; background-color:rgb(250,250,250)"> import&nbsp;org.elasticsearch.common.settings.ImmutableSettings; &nbsp; </li> 
 <li style="margin:0px 0px 0px 38px; padding:0px 0px 0px 10px; vertical-align:middle; font-size:1em; border-left-width:1px; border-left-style:solid; border-left-color:rgb(209,215,220); line-height:18px; background-color:rgb(250,250,250)"> import&nbsp;org.elasticsearch.common.settings.Settings; &nbsp; </li> 
 <li style="margin:0px 0px 0px 38px; padding:0px 0px 0px 10px; vertical-align:middle; font-size:1em; border-left-width:1px; border-left-style:solid; border-left-color:rgb(209,215,220); line-height:18px; background-color:rgb(250,250,250)"> import&nbsp;org.elasticsearch.common.transport.InetSocketTransportAddress; &nbsp; </li> 
 <li style="margin:0px 0px 0px 38px; padding:0px 0px 0px 10px; vertical-align:middle; font-size:1em; border-left-width:1px; border-left-style:solid; border-left-color:rgb(209,215,220); line-height:18px; background-color:rgb(250,250,250)"> &nbsp; </li> 
 <li style="margin:0px 0px 0px 38px; padding:0px 0px 0px 10px; vertical-align:middle; font-size:1em; border-left-width:1px; border-left-style:solid; border-left-color:rgb(209,215,220); line-height:18px; background-color:rgb(250,250,250)"> import&nbsp;com.donlianli.es.ESUtils; &nbsp; </li> 
 <li style="margin:0px 0px 0px 38px; padding:0px 0px 0px 10px; vertical-align:middle; font-size:1em; border-left-width:1px; border-left-style:solid; border-left-color:rgb(209,215,220); line-height:18px; background-color:rgb(250,250,250)"> import&nbsp;com.donlianli.es.model.LogModel; &nbsp; </li> 
 <li style="margin:0px 0px 0px 38px; padding:0px 0px 0px 10px; vertical-align:middle; font-size:1em; border-left-width:1px; border-left-style:solid; border-left-color:rgb(209,215,220); line-height:18px; background-color:rgb(250,250,250)"> /** </li> 
 <li style="margin:0px 0px 0px 38px; padding:0px 0px 0px 10px; vertical-align:middle; font-size:1em; border-left-width:1px; border-left-style:solid; border-left-color:rgb(209,215,220); line-height:18px; background-color:rgb(250,250,250)"> * 向ES添加索引对象 </li> 
 <li style="margin:0px 0px 0px 38px; padding:0px 0px 0px 10px; vertical-align:middle; font-size:1em; border-left-width:1px; border-left-style:solid; border-left-color:rgb(209,215,220); line-height:18px; background-color:rgb(250,250,250)"> * @author donlian </li> 
 <li style="margin:0px 0px 0px 38px; padding:0px 0px 0px 10px; vertical-align:middle; font-size:1em; border-left-width:1px; border-left-style:solid; border-left-color:rgb(209,215,220); line-height:18px; background-color:rgb(250,250,250)"> */&nbsp;&nbsp; </li> 
 <li style="margin:0px 0px 0px 38px; padding:0px 0px 0px 10px; vertical-align:middle; font-size:1em; border-left-width:1px; border-left-style:solid; border-left-color:rgb(209,215,220); line-height:18px; background-color:rgb(250,250,250)"> public&nbsp;class&nbsp;IndexTest { &nbsp; </li> 
 <li style="margin:0px 0px 0px 38px; padding:0px 0px 0px 10px; vertical-align:middle; font-size:1em; border-left-width:1px; border-left-style:solid; border-left-color:rgb(209,215,220); line-height:18px; background-color:rgb(250,250,250)"> &nbsp; &nbsp;public&nbsp;static&nbsp;void&nbsp;main(String[] argv){ &nbsp; </li> 
 <li style="margin:0px 0px 0px 38px; padding:0px 0px 0px 10px; vertical-align:middle; font-size:1em; border-left-width:1px; border-left-style:solid; border-left-color:rgb(209,215,220); line-height:18px; background-color:rgb(250,250,250)"> &nbsp; &nbsp; &nbsp; &nbsp;Settings settings = ImmutableSettings.settingsBuilder() &nbsp; </li> 
 <li style="margin:0px 0px 0px 38px; padding:0px 0px 0px 10px; vertical-align:middle; font-size:1em; border-left-width:1px; border-left-style:solid; border-left-color:rgb(209,215,220); line-height:18px; background-color:rgb(250,250,250)"> &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;//指定集群名称&nbsp;&nbsp; </li> 
 <li style="margin:0px 0px 0px 38px; padding:0px 0px 0px 10px; vertical-align:middle; font-size:1em; border-left-width:1px; border-left-style:solid; border-left-color:rgb(209,215,220); line-height:18px; background-color:rgb(250,250,250)"> &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;.put("cluster.name",&nbsp;"elasticsearch") &nbsp; </li> 
 <li style="margin:0px 0px 0px 38px; padding:0px 0px 0px 10px; vertical-align:middle; font-size:1em; border-left-width:1px; border-left-style:solid; border-left-color:rgb(209,215,220); line-height:18px; background-color:rgb(250,250,250)"> &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;//探测集群中机器状态&nbsp;&nbsp; </li> 
 <li style="margin:0px 0px 0px 38px; padding:0px 0px 0px 10px; vertical-align:middle; font-size:1em; border-left-width:1px; border-left-style:solid; border-left-color:rgb(209,215,220); line-height:18px; background-color:rgb(250,250,250)"> &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;.put("client.transport.sniff",&nbsp;true).build(); &nbsp; </li> 
 <li style="margin:0px 0px 0px 38px; padding:0px 0px 0px 10px; vertical-align:middle; font-size:1em; border-left-width:1px; border-left-style:solid; border-left-color:rgb(209,215,220); line-height:18px; background-color:rgb(250,250,250)"> &nbsp; &nbsp; &nbsp; &nbsp;/* </li> 
 <li style="margin:0px 0px 0px 38px; padding:0px 0px 0px 10px; vertical-align:middle; font-size:1em; border-left-width:1px; border-left-style:solid; border-left-color:rgb(209,215,220); line-height:18px; background-color:rgb(250,250,250)"> &nbsp; &nbsp; &nbsp; &nbsp; * 创建客户端，所有的操作都由客户端开始，这个就好像是JDBC的Connection对象 </li> 
 <li style="margin:0px 0px 0px 38px; padding:0px 0px 0px 10px; vertical-align:middle; font-size:1em; border-left-width:1px; border-left-style:solid; border-left-color:rgb(209,215,220); line-height:18px; background-color:rgb(250,250,250)"> &nbsp; &nbsp; &nbsp; &nbsp; * 用完记得要关闭 </li> 
 <li style="margin:0px 0px 0px 38px; padding:0px 0px 0px 10px; vertical-align:middle; font-size:1em; border-left-width:1px; border-left-style:solid; border-left-color:rgb(209,215,220); line-height:18px; background-color:rgb(250,250,250)"> &nbsp; &nbsp; &nbsp; &nbsp; */&nbsp;&nbsp; </li> 
 <li style="margin:0px 0px 0px 38px; padding:0px 0px 0px 10px; vertical-align:middle; font-size:1em; border-left-width:1px; border-left-style:solid; border-left-color:rgb(209,215,220); line-height:18px; background-color:rgb(250,250,250)"> &nbsp; &nbsp; &nbsp; &nbsp;Client client =&nbsp;new&nbsp;TransportClient(settings) &nbsp; </li> 
 <li style="margin:0px 0px 0px 38px; padding:0px 0px 0px 10px; vertical-align:middle; font-size:1em; border-left-width:1px; border-left-style:solid; border-left-color:rgb(209,215,220); line-height:18px; background-color:rgb(250,250,250)"> &nbsp; &nbsp; &nbsp; &nbsp;.addTransportAddress(new&nbsp;InetSocketTransportAddress("192.168.1.106",&nbsp;9300)); &nbsp; </li> 
 <li style="margin:0px 0px 0px 38px; padding:0px 0px 0px 10px; vertical-align:middle; font-size:1em; border-left-width:1px; border-left-style:solid; border-left-color:rgb(209,215,220); line-height:18px; background-color:rgb(250,250,250)"> &nbsp; &nbsp; &nbsp; &nbsp;String json = ESUtils.toJson(new&nbsp;LogModel()); &nbsp; </li> 
 <li style="margin:0px 0px 0px 38px; padding:0px 0px 0px 10px; vertical-align:middle; font-size:1em; border-left-width:1px; border-left-style:solid; border-left-color:rgb(209,215,220); line-height:18px; background-color:rgb(250,250,250)"> &nbsp; &nbsp; &nbsp; &nbsp;//在这里创建我们要索引的对象&nbsp;&nbsp; </li> 
 <li style="margin:0px 0px 0px 38px; padding:0px 0px 0px 10px; vertical-align:middle; font-size:1em; border-left-width:1px; border-left-style:solid; border-left-color:rgb(209,215,220); line-height:18px; background-color:rgb(250,250,250)"> &nbsp; &nbsp; &nbsp; &nbsp;IndexResponse response = client.prepareIndex("twitter",&nbsp;"tweet") &nbsp; </li> 
 <li style="margin:0px 0px 0px 38px; padding:0px 0px 0px 10px; vertical-align:middle; font-size:1em; border-left-width:1px; border-left-style:solid; border-left-color:rgb(209,215,220); line-height:18px; background-color:rgb(250,250,250)"> &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;//必须为对象单独指定ID&nbsp;&nbsp; </li> 
 <li style="margin:0px 0px 0px 38px; padding:0px 0px 0px 10px; vertical-align:middle; font-size:1em; border-left-width:1px; border-left-style:solid; border-left-color:rgb(209,215,220); line-height:18px; background-color:rgb(250,250,250)"> &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;.setId("1") &nbsp; </li> 
 <li style="margin:0px 0px 0px 38px; padding:0px 0px 0px 10px; vertical-align:middle; font-size:1em; border-left-width:1px; border-left-style:solid; border-left-color:rgb(209,215,220); line-height:18px; background-color:rgb(250,250,250)"> &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;.setSource(json) &nbsp; </li> 
 <li style="margin:0px 0px 0px 38px; padding:0px 0px 0px 10px; vertical-align:middle; font-size:1em; border-left-width:1px; border-left-style:solid; border-left-color:rgb(209,215,220); line-height:18px; background-color:rgb(250,250,250)"> &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;.execute() &nbsp; </li> 
 <li style="margin:0px 0px 0px 38px; padding:0px 0px 0px 10px; vertical-align:middle; font-size:1em; border-left-width:1px; border-left-style:solid; border-left-color:rgb(209,215,220); line-height:18px; background-color:rgb(250,250,250)"> &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;.actionGet(); &nbsp; </li> 
 <li style="margin:0px 0px 0px 38px; padding:0px 0px 0px 10px; vertical-align:middle; font-size:1em; border-left-width:1px; border-left-style:solid; border-left-color:rgb(209,215,220); line-height:18px; background-color:rgb(250,250,250)"> &nbsp; &nbsp; &nbsp; &nbsp;//多次index这个版本号会变&nbsp;&nbsp; </li> 
 <li style="margin:0px 0px 0px 38px; padding:0px 0px 0px 10px; vertical-align:middle; font-size:1em; border-left-width:1px; border-left-style:solid; border-left-color:rgb(209,215,220); line-height:18px; background-color:rgb(250,250,250)"> &nbsp; &nbsp; &nbsp; &nbsp;System.out.println("response.version():"+response.version()); &nbsp; </li> 
 <li style="margin:0px 0px 0px 38px; padding:0px 0px 0px 10px; vertical-align:middle; font-size:1em; border-left-width:1px; border-left-style:solid; border-left-color:rgb(209,215,220); line-height:18px; background-color:rgb(250,250,250)"> &nbsp; &nbsp; &nbsp; &nbsp;client.close(); &nbsp; </li> 
 <li style="margin:0px 0px 0px 38px; padding:0px 0px 0px 10px; vertical-align:middle; font-size:1em; border-left-width:1px; border-left-style:solid; border-left-color:rgb(209,215,220); line-height:18px; background-color:rgb(250,250,250)"> &nbsp; &nbsp;} &nbsp; </li> 
 <li style="margin:0px 0px 0px 38px; padding:0px 0px 0px 10px; vertical-align:middle; font-size:1em; border-left-width:1px; border-left-style:solid; border-left-color:rgb(209,215,220); line-height:18px; background-color:rgb(250,250,250)"> } &nbsp; </li> 
 </ol> 
 </div> 
 
 运行这个代码，就向ES插入了一条数据，你运行两遍，还是一条。ES根据你设置的ID来设置对象，如果没有则插入，有则更新。每更新一次，对应的version加1. 
 好了，在次，使用以下命令，应该能够查询到一条记录了。 
 <pre><code>curl -XGET 'http://localhost:9200/twitter/tweet/1'</code></pre> 
 
 <h1 style="margin:0px; padding:0px; vertical-align:middle">delete(删除）</h1> 
 有了增加的例子，删除的例子也就好写了。增加是prepareIndex，删除是prepareDelete,查询就是PrepareGet。 
 代码如下： 
 <div style="margin:0px 0px 0px 9px; padding:1px; vertical-align:middle; font-family:monaco,'dejavu sans mono','bitstream vera sans mono',consolas,'courier new',monospace; font-size:12px; width:679px; overflow:auto; word-break:break-all; word-wrap:break-word; line-height:25px"> 
 <div style="margin:0px; padding:0px; vertical-align:middle"> 
 <div style="margin:0px; padding:3px; vertical-align:middle; font-weight:bold">
 Java代码 
 </div> 
 </div> 
 <ol style="margin:0px 0px 1px; padding:2px 0px; list-style:none; vertical-align:middle; font-size:1em; line-height:1.4em; border:1px solid rgb(209,215,220); color:rgb(43,145,175)"> 
 <li style="margin:0px 0px 0px 38px; padding:0px 0px 0px 10px; vertical-align:middle; font-size:1em; border-left-width:1px; border-left-style:solid; border-left-color:rgb(209,215,220); line-height:18px; background-color:rgb(250,250,250)"> import&nbsp;org.elasticsearch.action.delete.DeleteResponse; &nbsp; </li> 
 <li style="margin:0px 0px 0px 38px; padding:0px 0px 0px 10px; vertical-align:middle; font-size:1em; border-left-width:1px; border-left-style:solid; border-left-color:rgb(209,215,220); line-height:18px; background-color:rgb(250,250,250)"> import&nbsp;org.elasticsearch.client.Client; &nbsp; </li> 
 <li style="margin:0px 0px 0px 38px; padding:0px 0px 0px 10px; vertical-align:middle; font-size:1em; border-left-width:1px; border-left-style:solid; border-left-color:rgb(209,215,220); line-height:18px; background-color:rgb(250,250,250)"> import&nbsp;org.elasticsearch.client.transport.TransportClient; &nbsp; </li> 
 <li style="margin:0px 0px 0px 38px; padding:0px 0px 0px 10px; vertical-align:middle; font-size:1em; border-left-width:1px; border-left-style:solid; border-left-color:rgb(209,215,220); line-height:18px; background-color:rgb(250,250,250)"> import&nbsp;org.elasticsearch.common.settings.ImmutableSettings; &nbsp; </li> 
 <li style="margin:0px 0px 0px 38px; padding:0px 0px 0px 10px; vertical-align:middle; font-size:1em; border-left-width:1px; border-left-style:solid; border-left-color:rgb(209,215,220); line-height:18px; background-color:rgb(250,250,250)"> import&nbsp;org.elasticsearch.common.settings.Settings; &nbsp; </li> 
 <li style="margin:0px 0px 0px 38px; padding:0px 0px 0px 10px; vertical-align:middle; font-size:1em; border-left-width:1px; border-left-style:solid; border-left-color:rgb(209,215,220); line-height:18px; background-color:rgb(250,250,250)"> import&nbsp;org.elasticsearch.common.transport.InetSocketTransportAddress; &nbsp; </li> 
 <li style="margin:0px 0px 0px 38px; padding:0px 0px 0px 10px; vertical-align:middle; font-size:1em; border-left-width:1px; border-left-style:solid; border-left-color:rgb(209,215,220); line-height:18px; background-color:rgb(250,250,250)"> &nbsp; </li> 
 <li style="margin:0px 0px 0px 38px; padding:0px 0px 0px 10px; vertical-align:middle; font-size:1em; border-left-width:1px; border-left-style:solid; border-left-color:rgb(209,215,220); line-height:18px; background-color:rgb(250,250,250)"> import&nbsp;com.donlianli.es.ESUtils; &nbsp; </li> 
 <li style="margin:0px 0px 0px 38px; padding:0px 0px 0px 10px; vertical-align:middle; font-size:1em; border-left-width:1px; border-left-style:solid; border-left-color:rgb(209,215,220); line-height:18px; background-color:rgb(250,250,250)"> &nbsp; </li> 
 <li style="margin:0px 0px 0px 38px; padding:0px 0px 0px 10px; vertical-align:middle; font-size:1em; border-left-width:1px; border-left-style:solid; border-left-color:rgb(209,215,220); line-height:18px; background-color:rgb(250,250,250)"> public&nbsp;class&nbsp;DeleteTest { &nbsp; </li> 
 <li style="margin:0px 0px 0px 38px; padding:0px 0px 0px 10px; vertical-align:middle; font-size:1em; border-left-width:1px; border-left-style:solid; border-left-color:rgb(209,215,220); line-height:18px; background-color:rgb(250,250,250)"> &nbsp; &nbsp;public&nbsp;static&nbsp;void&nbsp;main(String[] argv){ &nbsp; </li> 
 <li style="margin:0px 0px 0px 38px; padding:0px 0px 0px 10px; vertical-align:middle; font-size:1em; border-left-width:1px; border-left-style:solid; border-left-color:rgb(209,215,220); line-height:18px; background-color:rgb(250,250,250)"> &nbsp; &nbsp; &nbsp; &nbsp;Settings settings = ImmutableSettings.settingsBuilder() &nbsp; </li> 
 <li style="margin:0px 0px 0px 38px; padding:0px 0px 0px 10px; vertical-align:middle; font-size:1em; border-left-width:1px; border-left-style:solid; border-left-color:rgb(209,215,220); line-height:18px; background-color:rgb(250,250,250)"> &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;//指定集群名称&nbsp;&nbsp; </li> 
 <li style="margin:0px 0px 0px 38px; padding:0px 0px 0px 10px; vertical-align:middle; font-size:1em; border-left-width:1px; border-left-style:solid; border-left-color:rgb(209,215,220); line-height:18px; background-color:rgb(250,250,250)"> &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;.put("cluster.name",&nbsp;"elasticsearch") &nbsp; </li> 
 <li style="margin:0px 0px 0px 38px; padding:0px 0px 0px 10px; vertical-align:middle; font-size:1em; border-left-width:1px; border-left-style:solid; border-left-color:rgb(209,215,220); line-height:18px; background-color:rgb(250,250,250)"> &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;//探测集群中机器状态&nbsp;&nbsp; </li> 
 <li style="margin:0px 0px 0px 38px; padding:0px 0px 0px 10px; vertical-align:middle; font-size:1em; border-left-width:1px; border-left-style:solid; border-left-color:rgb(209,215,220); line-height:18px; background-color:rgb(250,250,250)"> &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;.put("client.transport.sniff",&nbsp;true).build(); &nbsp; </li> 
 <li style="margin:0px 0px 0px 38px; padding:0px 0px 0px 10px; vertical-align:middle; font-size:1em; border-left-width:1px; border-left-style:solid; border-left-color:rgb(209,215,220); line-height:18px; background-color:rgb(250,250,250)"> &nbsp; &nbsp; &nbsp; &nbsp;/* </li> 
 <li style="margin:0px 0px 0px 38px; padding:0px 0px 0px 10px; vertical-align:middle; font-size:1em; border-left-width:1px; border-left-style:solid; border-left-color:rgb(209,215,220); line-height:18px; background-color:rgb(250,250,250)"> &nbsp; &nbsp; &nbsp; &nbsp; * 创建客户端，所有的操作都由客户端开始，这个就好像是JDBC的Connection对象 </li> 
 <li style="margin:0px 0px 0px 38px; padding:0px 0px 0px 10px; vertical-align:middle; font-size:1em; border-left-width:1px; border-left-style:solid; border-left-color:rgb(209,215,220); line-height:18px; background-color:rgb(250,250,250)"> &nbsp; &nbsp; &nbsp; &nbsp; * 用完记得要关闭 </li> 
 <li style="margin:0px 0px 0px 38px; padding:0px 0px 0px 10px; vertical-align:middle; font-size:1em; border-left-width:1px; border-left-style:solid; border-left-color:rgb(209,215,220); line-height:18px; background-color:rgb(250,250,250)"> &nbsp; &nbsp; &nbsp; &nbsp; */&nbsp;&nbsp; </li> 
 <li style="margin:0px 0px 0px 38px; padding:0px 0px 0px 10px; vertical-align:middle; font-size:1em; border-left-width:1px; border-left-style:solid; border-left-color:rgb(209,215,220); line-height:18px; background-color:rgb(250,250,250)"> &nbsp; &nbsp; &nbsp; &nbsp;Client client =&nbsp;new&nbsp;TransportClient(settings) &nbsp; </li> 
 <li style="margin:0px 0px 0px 38px; padding:0px 0px 0px 10px; vertical-align:middle; font-size:1em; border-left-width:1px; border-left-style:solid; border-left-color:rgb(209,215,220); line-height:18px; background-color:rgb(250,250,250)"> &nbsp; &nbsp; &nbsp; &nbsp;.addTransportAddress(new&nbsp;InetSocketTransportAddress("192.168.1.106",&nbsp;9300)); &nbsp; </li> 
 <li style="margin:0px 0px 0px 38px; padding:0px 0px 0px 10px; vertical-align:middle; font-size:1em; border-left-width:1px; border-left-style:solid; border-left-color:rgb(209,215,220); line-height:18px; background-color:rgb(250,250,250)"> &nbsp; &nbsp; &nbsp; &nbsp;//在这里创建我们要索引的对象&nbsp;&nbsp; </li> 
 <li style="margin:0px 0px 0px 38px; padding:0px 0px 0px 10px; vertical-align:middle; font-size:1em; border-left-width:1px; border-left-style:solid; border-left-color:rgb(209,215,220); line-height:18px; background-color:rgb(250,250,250)"> &nbsp; &nbsp; &nbsp; &nbsp;DeleteResponse response = client.prepareDelete("twitter",&nbsp;"tweet",&nbsp;"1") &nbsp; </li> 
 <li style="margin:0px 0px 0px 38px; padding:0px 0px 0px 10px; vertical-align:middle; font-size:1em; border-left-width:1px; border-left-style:solid; border-left-color:rgb(209,215,220); line-height:18px; background-color:rgb(250,250,250)"> &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;.execute().actionGet(); &nbsp; </li> 
 <li style="margin:0px 0px 0px 38px; padding:0px 0px 0px 10px; vertical-align:middle; font-size:1em; border-left-width:1px; border-left-style:solid; border-left-color:rgb(209,215,220); line-height:18px; background-color:rgb(250,250,250)"> &nbsp; &nbsp; &nbsp; &nbsp;System.out.println(response.getId()); &nbsp; </li> 
 <li style="margin:0px 0px 0px 38px; padding:0px 0px 0px 10px; vertical-align:middle; font-size:1em; border-left-width:1px; border-left-style:solid; border-left-color:rgb(209,215,220); line-height:18px; background-color:rgb(250,250,250)"> &nbsp; &nbsp; &nbsp; &nbsp;System.out.println(ESUtils.toJson(response.getHeaders())); &nbsp; </li> 
 <li style="margin:0px 0px 0px 38px; padding:0px 0px 0px 10px; vertical-align:middle; font-size:1em; border-left-width:1px; border-left-style:solid; border-left-color:rgb(209,215,220); line-height:18px; background-color:rgb(250,250,250)"> &nbsp; &nbsp;} &nbsp; </li> 
 <li style="margin:0px 0px 0px 38px; padding:0px 0px 0px 10px; vertical-align:middle; font-size:1em; border-left-width:1px; border-left-style:solid; border-left-color:rgb(209,215,220); line-height:18px; background-color:rgb(250,250,250)"> } &nbsp; </li> 
 </ol> 
 </div> 
 <h1 style="margin:0px; padding:0px; vertical-align:middle">GET(查询）</h1> 
 <pre><code>
 
 
 <div style="margin: 0px 0px 0px 9px; padding: 1px; vertical-align: middle; font-family: monaco, 'dejavu sans mono', 'bitstream vera sans mono', consolas, 'courier new', monospace; font-size: 12px; width: 679px; overflow: auto; word-break: break-all; word-wrap: break-word; line-height: 25px; background-color: rgb(255, 255, 255);"> 
 <div style="margin: 0px; padding: 0px; vertical-align: middle;"> 
 <div style="margin: 0px; padding: 3px; vertical-align: middle; font-weight: bold;">
 Java代码 
 </div> 
 </div> 
 <ol style="margin: 0px 0px 1px; padding: 2px 0px; list-style: none; vertical-align: middle; font-size: 1em; line-height: 1.4em; border: 1px solid rgb(209, 215, 220); color: rgb(43, 145, 175);"> 
 <li style="margin: 0px 0px 0px 38px; padding: 0px 0px 0px 10px; vertical-align: middle; font-size: 1em; border-left-width: 1px; border-left-style: solid; border-left-color: rgb(209, 215, 220); line-height: 18px; background-color: rgb(250, 250, 250);">import org.elasticsearch.action.get.GetResponse; &nbsp;</li> 
 <li style="margin: 0px 0px 0px 38px; padding: 0px 0px 0px 10px; vertical-align: middle; font-size: 1em; border-left-width: 1px; border-left-style: solid; border-left-color: rgb(209, 215, 220); line-height: 18px; background-color: rgb(250, 250, 250);">import org.elasticsearch.client.Client; &nbsp;</li> 
 <li style="margin: 0px 0px 0px 38px; padding: 0px 0px 0px 10px; vertical-align: middle; font-size: 1em; border-left-width: 1px; border-left-style: solid; border-left-color: rgb(209, 215, 220); line-height: 18px; background-color: rgb(250, 250, 250);">import org.elasticsearch.client.transport.TransportClient; &nbsp;</li> 
 <li style="margin: 0px 0px 0px 38px; padding: 0px 0px 0px 10px; vertical-align: middle; font-size: 1em; border-left-width: 1px; border-left-style: solid; border-left-color: rgb(209, 215, 220); line-height: 18px; background-color: rgb(250, 250, 250);">import org.elasticsearch.common.settings.ImmutableSettings; &nbsp;</li> 
 <li style="margin: 0px 0px 0px 38px; padding: 0px 0px 0px 10px; vertical-align: middle; font-size: 1em; border-left-width: 1px; border-left-style: solid; border-left-color: rgb(209, 215, 220); line-height: 18px; background-color: rgb(250, 250, 250);">import org.elasticsearch.common.settings.Settings; &nbsp;</li> 
 <li style="margin: 0px 0px 0px 38px; padding: 0px 0px 0px 10px; vertical-align: middle; font-size: 1em; border-left-width: 1px; border-left-style: solid; border-left-color: rgb(209, 215, 220); line-height: 18px; background-color: rgb(250, 250, 250);">import org.elasticsearch.common.transport.InetSocketTransportAddress; &nbsp;</li> 
 <li style="margin: 0px 0px 0px 38px; padding: 0px 0px 0px 10px; vertical-align: middle; font-size: 1em; border-left-width: 1px; border-left-style: solid; border-left-color: rgb(209, 215, 220); line-height: 18px; background-color: rgb(250, 250, 250);"> &nbsp;</li> 
 <li style="margin: 0px 0px 0px 38px; padding: 0px 0px 0px 10px; vertical-align: middle; font-size: 1em; border-left-width: 1px; border-left-style: solid; border-left-color: rgb(209, 215, 220); line-height: 18px; background-color: rgb(250, 250, 250);">public class GetTest { &nbsp;</li> 
 <li style="margin: 0px 0px 0px 38px; padding: 0px 0px 0px 10px; vertical-align: middle; font-size: 1em; border-left-width: 1px; border-left-style: solid; border-left-color: rgb(209, 215, 220); line-height: 18px; background-color: rgb(250, 250, 250);"> &nbsp; &nbsp;public static void main(String[] argv){ &nbsp;</li> 
 <li style="margin: 0px 0px 0px 38px; padding: 0px 0px 0px 10px; vertical-align: middle; font-size: 1em; border-left-width: 1px; border-left-style: solid; border-left-color: rgb(209, 215, 220); line-height: 18px; background-color: rgb(250, 250, 250);"> &nbsp; &nbsp; &nbsp; &nbsp;Settings settings = ImmutableSettings.settingsBuilder() &nbsp;</li> 
 <li style="margin: 0px 0px 0px 38px; padding: 0px 0px 0px 10px; vertical-align: middle; font-size: 1em; border-left-width: 1px; border-left-style: solid; border-left-color: rgb(209, 215, 220); line-height: 18px; background-color: rgb(250, 250, 250);"> &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;//指定集群名称 &nbsp;</li> 
 <li style="margin: 0px 0px 0px 38px; padding: 0px 0px 0px 10px; vertical-align: middle; font-size: 1em; border-left-width: 1px; border-left-style: solid; border-left-color: rgb(209, 215, 220); line-height: 18px; background-color: rgb(250, 250, 250);"> &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;.put("cluster.name", "elasticsearch") &nbsp;</li> 
 <li style="margin: 0px 0px 0px 38px; padding: 0px 0px 0px 10px; vertical-align: middle; font-size: 1em; border-left-width: 1px; border-left-style: solid; border-left-color: rgb(209, 215, 220); line-height: 18px; background-color: rgb(250, 250, 250);"> &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;//探测集群中机器状态 &nbsp;</li> 
 <li style="margin: 0px 0px 0px 38px; padding: 0px 0px 0px 10px; vertical-align: middle; font-size: 1em; border-left-width: 1px; border-left-style: solid; border-left-color: rgb(209, 215, 220); line-height: 18px; background-color: rgb(250, 250, 250);"> &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;.put("client.transport.sniff", true).build(); &nbsp;</li> 
 <li style="margin: 0px 0px 0px 38px; padding: 0px 0px 0px 10px; vertical-align: middle; font-size: 1em; border-left-width: 1px; border-left-style: solid; border-left-color: rgb(209, 215, 220); line-height: 18px; background-color: rgb(250, 250, 250);"> &nbsp; &nbsp; &nbsp; &nbsp;/* </li> 
 <li style="margin: 0px 0px 0px 38px; padding: 0px 0px 0px 10px; vertical-align: middle; font-size: 1em; border-left-width: 1px; border-left-style: solid; border-left-color: rgb(209, 215, 220); line-height: 18px; background-color: rgb(250, 250, 250);"> &nbsp; &nbsp; &nbsp; &nbsp; * 创建客户端，所有的操作都由客户端开始，这个就好像是JDBC的Connection对象 </li> 
 <li style="margin: 0px 0px 0px 38px; padding: 0px 0px 0px 10px; vertical-align: middle; font-size: 1em; border-left-width: 1px; border-left-style: solid; border-left-color: rgb(209, 215, 220); line-height: 18px; background-color: rgb(250, 250, 250);"> &nbsp; &nbsp; &nbsp; &nbsp; * 用完记得要关闭 </li> 
 <li style="margin: 0px 0px 0px 38px; padding: 0px 0px 0px 10px; vertical-align: middle; font-size: 1em; border-left-width: 1px; border-left-style: solid; border-left-color: rgb(209, 215, 220); line-height: 18px; background-color: rgb(250, 250, 250);"> &nbsp; &nbsp; &nbsp; &nbsp; */ &nbsp;</li> 
 <li style="margin: 0px 0px 0px 38px; padding: 0px 0px 0px 10px; vertical-align: middle; font-size: 1em; border-left-width: 1px; border-left-style: solid; border-left-color: rgb(209, 215, 220); line-height: 18px; background-color: rgb(250, 250, 250);"> &nbsp; &nbsp; &nbsp; &nbsp;Client client = new TransportClient(settings) &nbsp;</li> 
 <li style="margin: 0px 0px 0px 38px; padding: 0px 0px 0px 10px; vertical-align: middle; font-size: 1em; border-left-width: 1px; border-left-style: solid; border-left-color: rgb(209, 215, 220); line-height: 18px; background-color: rgb(250, 250, 250);"> &nbsp; &nbsp; &nbsp; &nbsp;.addTransportAddress(new InetSocketTransportAddress("192.168.1.106", 9300)); &nbsp;</li> 
 <li style="margin: 0px 0px 0px 38px; padding: 0px 0px 0px 10px; vertical-align: middle; font-size: 1em; border-left-width: 1px; border-left-style: solid; border-left-color: rgb(209, 215, 220); line-height: 18px; background-color: rgb(250, 250, 250);"> &nbsp; &nbsp; &nbsp; &nbsp;//在这里创建我们要索引的对象 &nbsp;</li> 
 <li style="margin: 0px 0px 0px 38px; padding: 0px 0px 0px 10px; vertical-align: middle; font-size: 1em; border-left-width: 1px; border-left-style: solid; border-left-color: rgb(209, 215, 220); line-height: 18px; background-color: rgb(250, 250, 250);"> &nbsp; &nbsp; &nbsp; &nbsp;GetResponse response = client.prepareGet("twitter", "tweet", "1") &nbsp;</li> 
 <li style="margin: 0px 0px 0px 38px; padding: 0px 0px 0px 10px; vertical-align: middle; font-size: 1em; border-left-width: 1px; border-left-style: solid; border-left-color: rgb(209, 215, 220); line-height: 18px; background-color: rgb(250, 250, 250);"> &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;.execute().actionGet(); &nbsp;</li> 
 <li style="margin: 0px 0px 0px 38px; padding: 0px 0px 0px 10px; vertical-align: middle; font-size: 1em; border-left-width: 1px; border-left-style: solid; border-left-color: rgb(209, 215, 220); line-height: 18px; background-color: rgb(250, 250, 250);"> &nbsp; &nbsp; &nbsp; &nbsp;System.out.println("response.getId():"+response.getId()); &nbsp;</li> 
 <li style="margin: 0px 0px 0px 38px; padding: 0px 0px 0px 10px; vertical-align: middle; font-size: 1em; border-left-width: 1px; border-left-style: solid; border-left-color: rgb(209, 215, 220); line-height: 18px; background-color: rgb(250, 250, 250);"> &nbsp; &nbsp; &nbsp; &nbsp;System.out.println("response.getSourceAsString():"+response.getSourceAsString()); &nbsp;</li> 
 <li style="margin: 0px 0px 0px 38px; padding: 0px 0px 0px 10px; vertical-align: middle; font-size: 1em; border-left-width: 1px; border-left-style: solid; border-left-color: rgb(209, 215, 220); line-height: 18px; background-color: rgb(250, 250, 250);"> &nbsp; &nbsp;} &nbsp;</li> 
 <li style="margin: 0px 0px 0px 38px; padding: 0px 0px 0px 10px; vertical-align: middle; font-size: 1em; border-left-width: 1px; border-left-style: solid; border-left-color: rgb(209, 215, 220); line-height: 18px; background-color: rgb(250, 250, 250);">} &nbsp;</li> 
 </ol> 
 </div></code></pre> 
 好了，增删改查的代码写完。至于搜索，那是一个比较深入的话题，我也在慢慢探索。我时间我会继续写下去。 
 </div> </td> 
 </tr> 
 </tbody> 
</table>