solr api: 集群管理，数据读写

超、凢脫俗 2022-12-26 10:14 102阅读 0赞

### 文章目录 ###

*  1，使用Rest Api, 管理solr
 *   *  1.1, 管理configSet
     *  1.2, 修改schema.xml
     *  1.3, 修改solrconfig.xml
     *  1.4, 管理collection
     *   *  1.2.1, 查看shard分片范围
         *  1.2.2, 指定分片查询
         *  1.2.3, shard分裂: (路由策略: compositeId)
         *  1.2.4, shard创建/删除: (路由策略: implicit )
         *  1.2.5, collection别名/core重命名
 *  2，使用api ,读写数据
 *   *  2.1, 读写流程
     *  2.2, solradmin 读写数据/原子更新
     *   *  高亮显示
     *  2.3, 使用post.jar 导入文本数据
     *  2.4, solrj 读写数据：性能对比
     *   *  原子更新：添加某doc某字段/修改字段的数据

# 1，使用Rest Api, 管理solr #

## 1.1, 管理configSet ##

参考：[https://lucene.apache.org/solr/guide/7\_7/configsets-api.html][https_lucene.apache.org_solr_guide_7_7_configsets-api.html]

#1, 查看cdh solr默认的configSet
    [root@test-c6 ~]# solrctl instancedir --list
    managedTemplate
    managedTemplateSecure
    predefinedTemplate
    predefinedTemplateSecure
    schemalessTemplate
    schemalessTemplateSecure
    
    [root@test-c6 ~]# find /opt/cloudera/parcels/CDH/lib/solr/ -iname "*template*"
    /opt/cloudera/parcels/CDH/lib/solr/predefinedTemplate
    /opt/cloudera/parcels/CDH/lib/solr/managedTemplateSecure
    /opt/cloudera/parcels/CDH/lib/solr/predefinedTemplateSecure
    /opt/cloudera/parcels/CDH/lib/solr/managedTemplate
    /opt/cloudera/parcels/CDH/lib/solr/schemalessTemplateSecure
    /opt/cloudera/parcels/CDH/lib/solr/coreconfig-template
    /opt/cloudera/parcels/CDH/lib/solr/schemalessTemplate
    /opt/cloudera/parcels/CDH/lib/solr/coreconfig-schemaless-template
    
    #上传configSet配置文件--- 在cdh solr版 不管用
    #(cd /opt/cloudera/parcels/CDH/lib/solr/predefinedTemplate && zip -r - *) > /tmp/demo.myconfigset.zip
    #
    #[root@test-c6 tmp]# ll /tmp/demo.myconfigset.zip -h
    #-rw-r--r-- 1 root root 145K Dec 4 17:32 /tmp/demo.myconfigset.zip
    #
    #curl -X POST --header "Content-Type:application/octet-stream" -d @'/tmp/demo.myconfigset.zip' "http://test-c6:8983/solr/admin/configs?action=upload&name=demo"
    
    #2, 列出已有的configSet
    curl 'http://localhost:8983/solr/admin/configs?action=LIST&omitHeader=true&wt=json'
    
    #3, 创建一个自定义名称的configSet：基于默认的某个配置
    curl 'http://localhost:8983/solr/admin/configs?action=CREATE&name=demo4&baseConfigSet=predefinedTemplate&configSetProp.immutable=false&wt=json'
    
    #4, 删除某个configSet
    curl 'http://localhost:8983/solr/admin/configs?action=DELETE&name=demo2'

## 1.2, 修改schema.xml ##

参考: [https://lucene.apache.org/solr/guide/7\_7/schema-api.html][https_lucene.apache.org_solr_guide_7_7_schema-api.html]

*  add-field, replace-field, delete-field
 *  add-dynamic-field, replace-dynamic-field, delete-dynamic-field

# 添加字段 -----cdh solr 不适用
    curl -X POST -H 'Content-type:application/json' --data-binary '{ "add-field":{ "name":"sell_by", "type":"pdate", "stored":true } }' http://localhost:8983/solr/gettingstarted/schema

*  add-field-type， delete-field-type， replace-field-type

# 添加字段类型 -----cdh solr 不适用
    curl -X POST -H 'Content-type:application/json' --data-binary '{ "add-field-type" : { "name":"myNewTxtField", "class":"solr.TextField", "positionIncrementGap":"100", "analyzer" : { "charFilters":[{ "class":"solr.PatternReplaceCharFilterFactory", "replacement":"$1$1", "pattern":"([a-zA-Z])\\\\1+" }], "tokenizer":{ "class":"solr.WhitespaceTokenizerFactory" }, "filters":[{ "class":"solr.WordDelimiterFilterFactory", "preserveOriginal":"0" }]}} }' http://localhost:8983/solr/gettingstarted/schema

## 1.3, 修改solrconfig.xml ##

curl http://localhost:8983/solr/test1/config -H 'Content-type:application/json'  -d '{ "add-requesthandler" : { "name": "/dataimport", "class":"solr.DataImportHandler", "defaults":{ "config":"/opt/cloudera/parcels/CDH/share/doc/solr-doc-4.10.3+cdh5.12.0+513/example/example-DIH/solr/db/conf/db-data-config.xml" } } }'

## 1.4, 管理collection ##

参考：[https://lucene.apache.org/solr/guide/7\_7/collections-api.html][https_lucene.apache.org_solr_guide_7_7_collections-api.html]

action分类：

*  collection 管理：CREATE,LIST, DELETE, MODIFYCOLLECTION, RELOAD
 *  shard 分片管理：SPLITSHARD,CREATESHARD ,DELETESHARD
 *  replica 副本管理： DELETEREPLICA ,ADDREPLICA

#创建collection:
    #curl 'http://test-c6:8983/solr/admin/collections' -d 'action=CREATE&name=demo&numShards=1&replicationFactor=1&maxShardsPerNode=2&collection.configName=managedTemplate&wt=json'
    curl 'http://test-c6:8983/solr/admin/collections?action=CREATE&name=demo&numShards=1&replicationFactor=1&maxShardsPerNode=2&collection.configName=demo&wt=json'
    
    #列出所有collection
    curl 'http://test-c6:8983/solr/admin/collections?action=LIST'
    
    #删除指定集合
    curl 'http://test-c6:8983/solr/admin/collections?action=DELETE&name=demo'  
    
    #查看集群状态：OVERSEERSTATUS, CLUSTERSTATUS
    curl 'http://test-c6:8983/solr/admin/collections?action=CLUSTERSTATUS'

### 1.2.1, 查看shard分片范围 ###

*  `curl "http://test-c6:8983/solr/admin/collections?action=CLUSTERSTATUS&collection=test32&indent=true&wt=json"`

<table> 
 <thead> 
  <tr> 
   <th>start(十六进制）</th> 
   <th>end（十六进制)</th> 
  </tr> 
 </thead> 
 <tbody> 
  <tr> 
   <td>0</td> 
   <td>2^31-1 =2147483647=(7fff ffff)8</td> 
  </tr> 
  <tr> 
   <td>2^31=2147483648=(8000 0000)8</td> 
   <td>2^32-1 =4294967295 = (ffff ffff)8</td> 
  </tr> 
 </tbody> 
</table>

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2V5ZW9mZWFnbGU_size_16_color_FFFFFF_t_70]

### 1.2.2, 指定分片查询 ###

[root@test-c6 ~]# curl "http://test-c6:8983/solr/solr_hs2_shard2_replica1/select?q=*%3A*&wt=json&indent=true&shards=shard1" -s |grep numFound
      "response":{ "numFound":389922,"start":0,"maxScore":1.0,"docs":[
      
    [root@test-c6 ~]# curl "http://test-c6:8983/solr/solr_hs2_shard2_replica1/select?q=*%3A*&wt=json&indent=true&shards=shard1,shard2" -s |grep numFound
      "response":{ "numFound":779446,"start":0,"maxScore":1.0,"docs":[

### 1.2.3, shard分裂: (路由策略: compositeId) ###

*  SPLITSHARD: 可以指定分片固定范围（ 将其分成两部分，并作为两个（新）分片写入磁盘。原始分片将继续按原样包含相同的数据，但是它将开始将请求重新路由到新分片）
 *  `curl "http://test-c6:8983/solr/admin/collections?action=CLUSTERSTATUS&collection=test32&indent=true&wt=json"`  
    ![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2V5ZW9mZWFnbGU_size_16_color_FFFFFF_t_70 1]

#参数说明
    #ranges:以逗号分隔的十六进制哈希范围列表，例如ranges=0-1f4,1f5-3e8,3e9-5dc
    #numSubShards: 将父分片拆分为的子分片的数量。允许的值在2-范围内，8默认为2。仅当ranges或未split.key指定时，才可以使用此参数
    #splitMethod:rewrite(默认值)重新创建子索引; link 使用文件系统级硬链接创建原始索引文件的副本，生成的子索引仍然与原始索引一样大，因为它们仍然包含不属于该分区的文档中的数据
    curl "http://test-c6:8983/solr/admin/collections?action=SPLITSHARD&collection=test1&shard=shard1&numSubShards=2&wt=xml"

*  DELETEREPLICA  
    Only non-active slices can be deleted：使用admin Web ui（核心admin下的红色按钮）将其卸载  
    [https://solr.apache.org/guide/6\_6/coreadmin-api.html: unload core][https_solr.apache.org_guide_6_6_coreadmin-api.html_ unload core]

curl "http://test-c6:8983/solr/admin/collections?action=DELETESHARD&shard=shard1&collection=test1"

### 1.2.4, shard创建/删除: (路由策略: implicit ) ###

#路由策略: implicit --> CREATESHARD 
    # 均衡添加数据的方式1： 
    # schema.xml添加字段 <field name="_route_" type="string"/>
    # 指定doc具体落在哪个shard上：doc.addField("_route_", "shard_X");
    # 均衡添加数据的方式2 (字段必须存在，并且是指定的shard名称,否则插入数据失败)： 
    # router.field=shard_id
    
    curl "http://test-c6:8983/solr/admin/collections?action=CREATE&name=test32&router.name=implicit&shards=shard1,shard2&replicationFactor=1&maxShardsPerNode=1&collection.configName=test"
    
    #查看collection状态及shard分布
    curl "http://test-c6:8983/solr/admin/collections?action=clusterstatus&collection=test32&indent=true&wt=json"
    返回数据: { 
      "responseHeader":{ 
        "status":0,
        "QTime":20},
      "cluster":{ 
        "collections":{ 
          "test32":{ 
            "routerSpec":{ "name":"implicit"},
            "replicationFactor":"1",
            "shards":{ 
              "shard1":{ 
                "range":null,
                "state":"active",
                "replicas":{ "core_node1":{ 
                    "core":"test32_shard1_replica1",
                    "base_url":"http://test-c6:8983/solr",
                    "node_name":"test-c6:8983_solr",
                    "state":"active",
                    "leader":"true"}}},
              "shard2":{ 
                "range":null,
                "state":"active",
                "replicas":{ "core_node2":{ 
                    "core":"test32_shard2_replica1",
                    "base_url":"http://test-c62:8983/solr",
                    "node_name":"test-c62:8983_solr",
                    "state":"active",
                    "leader":"true"}}}},
            "router":"implicit",
            "maxShardsPerNode":"1",
            "autoAddReplicas":"false"}},
        "properties":{ "urlScheme":"http"},
        "live_nodes":["test-c6:8983_solr",
          "test-c62:8983_solr"]}}
    
    #删除shard: inactive, or which have no range given for custom sharding
    curl "http://test-c6:8983/solr/admin/collections?action=DELETESHARD&shard=shard2&collection=test32"
    
    #路由策略: implicit --> CREATESHARD 创建shard
    curl "http://test-c6:8983/solr/admin/collections?action=CREATESHARD&shard=shard2&collection=test32"
    
    #指定分片查询: 查看分片管理的doc 数量 （总数= shard1 + shard2 )
    [root@test-c6 ~]# curl "http://test-c6:8983/solr/test32/select?q=price%3A%5B++20000+TO+*+%5D&wt=json&indent=true&rows=0" -s |grep response\"
      "response":{ "numFound":9999,"start":0,"maxScore":1.0,"docs":[]
    [root@test-c6 ~]# curl "http://test-c6:8983/solr/test32/select?q=price%3A%5B++20000+TO+*+%5D&wt=json&indent=true&rows=0&shards=shard1" -s |grep response\"
      "response":{ "numFound":0,"start":0,"docs":[]
    [root@test-c6 ~]# curl "http://test-c6:8983/solr/test32/select?q=price%3A%5B++20000+TO+*+%5D&wt=json&indent=true&rows=0&shards=shard2" -s |grep response\"
      "response":{ "numFound":9999,"start":0,"maxScore":1.0,"docs":[]

### 1.2.5, collection别名/core重命名 ###

*  使用场景： 一个旧的collection仅有一个shard，现业务增加，需要扩容为3个sahrd：  
    新建collection, 导入数据，停止旧的collection, 创建别名，以使旧的接口能够继续使用

#solr cloud : collection别名 (test1--> test1, test1_ali )
    curl "http://localhost:8983/solr/admin/collections?action=CREATEALIAS&name=test1_ali&collections=test1"
    
    #solr stand : core重命名 (test --> test2)
    curl "http://localhost:8089/solr/admin/cores?action=RENAME&core=test&other=test2"

# 2，使用api ,读写数据 #

## 2.1, 读写流程 ##

[图片来源：https://blog.csdn.net/hxpjava1/article/details/78134251][https_blog.csdn.net_hxpjava1_article_details_78134251]  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2V5ZW9mZWFnbGU_size_16_color_FFFFFF_t_70_pic_center]

## 2.2, solradmin 读写数据/原子更新 ##

参考：[https://lucene.apache.org/solr/guide/7\_7/uploading-data-with-index-handlers.html\#uploading-data-with-index-handlers][https_lucene.apache.org_solr_guide_7_7_uploading-data-with-index-handlers.html_uploading-data-with-index-handlers]  
原子更新：[https://cwiki.apache.org/confluence/display/solr/UpdateXmlMessages\#UpdateXmlMessages-Optionalattributesfor%22add%22][https_cwiki.apache.org_confluence_display_solr_UpdateXmlMessages_UpdateXmlMessages-Optionalattributesfor_22add_22]

#添加doc（覆盖)
    <add>
      <doc>
         <field name="id">11</field>
         <field name="manu">Patrick Eagar</field>
      </doc>
    </add>
    
    #修改doc(原子添加/更新/删除字段)
    <add>
      <doc>
          <field name="id">1</field>
          <field name="title" update="add">addmutivalue_or_addfiled</field>
          <field name="name" update="set">add_or_update_name</field>   
          <field name="subject" update="set" null="true" />
      </doc>
    </add>
    
    #删除(doc)
    <delete>
        <id>11</id>
        <query>manu:"Patrick Eagar"</query>
    </delete>
    
    #立即提交
    <commit waitSearcher="false"/>
    <commit waitSearcher="false" expungeDeletes="true"/>
    <optimize waitSearcher="false"/>

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2V5ZW9mZWFnbGU_size_16_color_FFFFFF_t_70 2]

### 高亮显示 ###

*  默认斜体显示高亮内容：hl.simple.pre/post: <em> xxx </em>
 *  设置红色字体显示高亮内容：hl.simple.pre/post: 可改为<font color=“red”> xxx </font>  
    ![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2V5ZW9mZWFnbGU_size_16_color_FFFFFF_t_70 3]

"response": { 
        "numFound": 2,
        "start": 0,
        "maxScore": 0.6043929,
        "docs": [
          { 
            "id": "id111",
            "title": [
              "t111xx"
            ],
            "_version_": 1686024315139522600
          },
          { 
            "id": "id5",
            "title": [
              "123555 test test123 xasdfasdf"
            ],
            "_version_": 1686025007598141400
          }
        ]
      },
      "highlighting": { 
        "id111": { 
          "title": [
            "<em>t111xx</em>"
          ],
          "id": [
            "<em>id111</em>"
          ]
        },
        "id5": { 
          "title": [
            "<em>123555</em> test <em>test123</em> xasdfasdf"
          ]
        }
      }
    }

## 2.3, 使用post.jar 导入文本数据 ##

#jar包路径
    [root@test-c6 solr]# find /opt/cloudera/parcels/ -name post.jar
    /opt/cloudera/parcels/CDH-5.12.0-1.cdh5.12.0.p0.29/jars/post.jar
    /opt/cloudera/parcels/CDH-5.12.0-1.cdh5.12.0.p0.29/share/doc/solr-doc-4.10.3+cdh5.12.0+513/example/exampledocs/post.jar
    /opt/cloudera/parcels/CDH-5.12.0-1.cdh5.12.0.p0.29/lib/hue/apps/search/examples/bin/post.jar
    
    #jar包使用方法
    [root@test-c6 solr]# java -jar /opt/cloudera/parcels/CDH-5.12.0-1.cdh5.12.0.p0.29/jars/post.jar -h
    SimplePostTool version 1.5
    Usage: java [SystemProperties] -jar post.jar [-h|-] [<file|folder|url|arg> [<file|folder|url|arg>...]]
    ....
    Examples:
      java -jar post.jar *.xml
      java -Ddata=args  -jar post.jar '<delete><id>42</id></delete>'
      java -Ddata=stdin -jar post.jar < hd.xml
      java -Ddata=web -jar post.jar http://example.com/
      java -Dtype=text/csv -jar post.jar *.csv
      java -Dtype=application/json -jar post.jar *.json
      java -Durl=http://localhost:8983/solr/update/extract -Dparams=literal.id=a -Dtype=application/pdf -jar post.jar a.pdf
      java -Dauto -jar post.jar *
      java -Dauto -Drecursive -jar post.jar afolder
      java -Dauto -Dfiletypes=ppt,html -jar post.jar afolder
    
    #导入测试数据
    [root@test-c6 solr]# find /opt/cloudera/parcels/ -name *.xml |grep solr |grep exampledocs
    /opt/cloudera/parcels/CDH-5.12.0-1.cdh5.12.0.p0.29/share/doc/solr-doc-4.10.3+cdh5.12.0+513/example/multicore/exampledocs/ipod_other.xml
    /opt/cloudera/parcels/CDH-5.12.0-1.cdh5.12.0.p0.29/share/doc/solr-doc-4.10.3+cdh5.12.0+513/example/multicore/exampledocs/ipod_video.xml
    
    [root@test-c6 solr]# java -Durl=http://localhost:8983/solr/jcse_shard1_replica1/update \
    	-jar /opt/cloudera/parcels/CDH-5.12.0-1.cdh5.12.0.p0.29/jars/post.jar \
    	/opt/cloudera/parcels/CDH-5.12.0-1.cdh5.12.0.p0.29/share/doc/solr-doc-4.10.3+cdh5.12.0+513/example/exampledocs/*.xml
    SimplePostTool version 1.5
    Posting files to base url http://localhost:8983/solr/jcse_shard1_replica1/update using content-type application/xml..
    POSTing file gb18030-example.xml
    POSTing file hd.xml
    POSTing file ipod_other.xml
    POSTing file ipod_video.xml
    POSTing file manufacturers.xml
    POSTing file mem.xml
    POSTing file money.xml
    POSTing file monitor2.xml
    POSTing file monitor.xml
    POSTing file mp500.xml
    POSTing file sd500.xml
    POSTing file solr.xml
    POSTing file utf8-example.xml
    POSTing file vidcard.xml
    14 files indexed.
    COMMITting Solr index changes to http://localhost:8983/solr/jcse_shard1_replica1/update..
    Time spent: 0:00:00.384
    You have new mail in /var/spool/mail/root

## 2.4, solrj 读写数据：性能对比 ##

<table> 
 <thead> 
  <tr> 
   <th>操作</th> 
   <th align="left">类名</th> 
   <th align="left">写入性能(一万条)</th> 
   <th align="left">读取性能(一万条)</th> 
  </tr> 
 </thead> 
 <tbody> 
  <tr> 
   <td>读</td> 
   <td align="left">CloudSolrServer</td> 
   <td align="left">58,572ms （HttpSolrServer写入: 102,330ms)</td> 
   <td align="left">1,254ms （HttpSolrServer读取: 640ms)</td> 
  </tr> 
  <tr> 
   <td>写</td> 
   <td align="left">ConcurrentUpdateSolrServer</td> 
   <td align="left">3,787ms （CloudSolrServer写入: 58,572ms)</td> 
   <td align="left"></td> 
  </tr> 
 </tbody> 
</table>

//添加maven依赖
     <dependency>
         <groupId>org.apache.solr</groupId>
         <artifactId>solr-solrj</artifactId>
         <version>4.10.3</version>
     </dependency>
    
    
    	public static void batchadd() throws IOException, SolrServerException { 
            String solrServerUrl = "http://192.168.56.161:8983/solr/test2";
            HttpClientBuilder httpClientBuilder = HttpClientBuilder.create();
            //用户名密码登录
            //CredentialsProvider provider = new BasicCredentialsProvider();
            //UsernamePasswordCredentials credentials = new UsernamePasswordCredentials("user", "passwd");
            //provider.setCredentials(AuthScope.ANY, credentials);
            //httpClientBuilder = httpClientBuilder.addInterceptorFirst(new PreemptiveAuthInterceptor()).setDefaultCredentialsProvider(provider);
            HttpClient httpClient = httpClientBuilder.build();
            HttpSolrClient solr = new HttpSolrClient.Builder().withBaseSolrUrl(solrServerUrl)
                    .withHttpClient(httpClient)
                    .build();
    
            List<SolrInputDocument> collect= new ArrayList<>();
            for (int id = 0; id < 9999; id++) { 
                SolrInputDocument document = new SolrInputDocument();
                document.addField("id", "" + id);
                document.addField("name", "book3中文" + id);
                document.addField("price", "" + id);
                collect.add(document);
                //commit per 2000 doc
                if (id % 2000 ==0 ) { 
                    solr.add(collect);
                    solr.commit();
                    collect.clear();
                }
            }
            //commit last docs
            if (collect.size()>0 ){ 
                solr.add(collect);
                solr.commit();
                collect.clear();
            }
        }
    
    
    
        public static void query() throws SolrServerException, IOException { 
            String solrServerUrl = "http://192.168.56.161:8983/solr/test2";
            HttpClientBuilder httpClientBuilder = HttpClientBuilder.create();
            //用户名密码登录
            //CredentialsProvider provider = new BasicCredentialsProvider();
            //UsernamePasswordCredentials credentials = new UsernamePasswordCredentials("user", "passwd");
            //provider.setCredentials(AuthScope.ANY, credentials);
            //httpClientBuilder = httpClientBuilder.addInterceptorFirst(new PreemptiveAuthInterceptor()).setDefaultCredentialsProvider(provider);
            HttpClient httpClient = httpClientBuilder.build();
            HttpSolrClient solr = new HttpSolrClient.Builder().withBaseSolrUrl(solrServerUrl)
                    .withHttpClient(httpClient)
                    .build();
    
            SolrQuery solrQuery = new SolrQuery();
            solrQuery.setTimeAllowed(-1);
            solrQuery.setQuery("*:*");
    // solrQuery.setFields("*");
    // solrQuery.setParam("fl", "id, DATETIME, DATE_BIRTH");
    // solrQuery.setParam("sort", "id asc");
    // solrQuery.addSort("id", SolrQuery.ORDER.asc); // Pay attention to this line
    // solrQuery.setRows(0);
    
            QueryRequest req = new QueryRequest(solrQuery);
            QueryResponse response = req.process(solr);
            long nDocuments = response.getResults().getNumFound();
            System.out.println("Found " + nDocuments + " documents");
            System.out.println(response);
            SolrDocumentList list = response.getResults();
            //long numFound = list.getNumFound();
            for (SolrDocument doc : list) { 
                Set<String> keys = doc.keySet();
                for (String k : keys) { 
                    Object value = doc.get(k);
                    System.out.println(k + "=>" + value);
                }
                System.out.println("---------");
            }
            solr.close();
        }

### 原子更新：添加某doc某字段/修改字段的数据 ###

参考：[https://cwiki.apache.org/confluence/display/solr/UpdateXmlMessages\#UpdateXmlMessages-Optionalattributesfor%22add%22][https_cwiki.apache.org_confluence_display_solr_UpdateXmlMessages_UpdateXmlMessages-Optionalattributesfor_22add_22]  
![在这里插入图片描述][20201221122726740.png]

import org.apache.solr.client.solrj.SolrServerException;
    import org.apache.solr.client.solrj.impl.CloudSolrServer;
    import org.apache.solr.common.SolrInputDocument;
    
    import java.io.IOException;
    import java.util.HashMap;
    import java.util.Map;
    
    public class Test2 { 
        public static void main(String[] args) throws IOException, SolrServerException { 
            String zk= "192.168.56.161:2181";
            String root="/solr";
            CloudSolrServer solrClient = new CloudSolrServer(zk+root);
            solrClient.setDefaultCollection("test1");
            SolrInputDocument doc = new SolrInputDocument();
    
            //添加一个新字段 或往一个mutivalue字段中添加一个数据： 注意字段重复会报错
            Map<String,String> map1=new HashMap<String, String>();
            map1.put("add","title3");
            doc.addField("title",map1);
    
            //更新某字段的值：存在则更新，否则添加新字段
            Map<String,String> map2=new HashMap<String, String>();
            map2.put("set","sub2");
            doc.addField("subject", map2);
    
            //使某字段值：自增一个数
            Map<String,String> map3=new HashMap<String, String>();
            map3.put("inc","10");
            doc.addField("price", map3);
    
            doc.addField("id","1");
            solrClient.add(doc);
            solrClient.shutdown();
        }
    }

[https_lucene.apache.org_solr_guide_7_7_configsets-api.html]: https://lucene.apache.org/solr/guide/7_7/configsets-api.html
[https_lucene.apache.org_solr_guide_7_7_schema-api.html]: https://lucene.apache.org/solr/guide/7_7/schema-api.html
[https_lucene.apache.org_solr_guide_7_7_collections-api.html]: https://lucene.apache.org/solr/guide/7_7/collections-api.html
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2V5ZW9mZWFnbGU_size_16_color_FFFFFF_t_70]: /images/20221120/c4e8b9ac5a2042a199c21c12d694d7d1.png
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2V5ZW9mZWFnbGU_size_16_color_FFFFFF_t_70 1]: /images/20221120/44fa5378b1874003a44ee0f8f855a685.png
[https_solr.apache.org_guide_6_6_coreadmin-api.html_ unload core]: https://solr.apache.org/guide/6_6/coreadmin-api.html
[https_blog.csdn.net_hxpjava1_article_details_78134251]: https://blog.csdn.net/hxpjava1/article/details/78134251
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2V5ZW9mZWFnbGU_size_16_color_FFFFFF_t_70_pic_center]: https://img-blog.csdnimg.cn/20201207091556137.png?x-oss-process=image/watermark,type_ZmFuZ3poZW5naGVpdGk,shadow_10,text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2V5ZW9mZWFnbGU=,size_16,color_FFFFFF,t_70#pic_center
[https_lucene.apache.org_solr_guide_7_7_uploading-data-with-index-handlers.html_uploading-data-with-index-handlers]: https://lucene.apache.org/solr/guide/7_7/uploading-data-with-index-handlers.html#uploading-data-with-index-handlers
[https_cwiki.apache.org_confluence_display_solr_UpdateXmlMessages_UpdateXmlMessages-Optionalattributesfor_22add_22]: https://cwiki.apache.org/confluence/display/solr/UpdateXmlMessages#UpdateXmlMessages-Optionalattributesfor%22add%22
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2V5ZW9mZWFnbGU_size_16_color_FFFFFF_t_70 2]: https://img-blog.csdnimg.cn/2020120709561938.png?x-oss-process=image/watermark,type_ZmFuZ3poZW5naGVpdGk,shadow_10,text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2V5ZW9mZWFnbGU=,size_16,color_FFFFFF,t_70
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2V5ZW9mZWFnbGU_size_16_color_FFFFFF_t_70 3]: https://img-blog.csdnimg.cn/20201214121318937.png?x-oss-process=image/watermark,type_ZmFuZ3poZW5naGVpdGk,shadow_10,text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2V5ZW9mZWFnbGU=,size_16,color_FFFFFF,t_70
[20201221122726740.png]: https://img-blog.csdnimg.cn/20201221122726740.png