Java6 WebServices （一）服务端

墨蓝 2022-09-18 04:49 169阅读 0赞

Java6发布了，其中一个吸引我的新特性就是原生支持WebServices。在这和大家分享下学习心得。  
下面就开始写个最简单的WebServices：

package  org.hermit.study.jdk;  
  
 import  javax.jws.WebMethod;  
 import  javax.jws.WebService;  
 import  javax.jws.soap.SOAPBinding;  
  
@WebService(targetNamespace  =  " http://jdk.study.hermit.org/client " )  
@SOAPBinding(style  =  SOAPBinding.Style.RPC)  
 public  class  Hello \{  
@WebMethod  
 public  String sayHello(String name) \{  
 return  " hello: "  \+  name;  
\}  
\}

怎么样简洁吧，很多朋友的写法还要在命令行中执行“ wsgen –cp . <path>”  
用偶这种方法写的service可以省去上面这步。  
  
targetNamespace = "http://jdk.study.hermit.org/client"这句是指定客户端获取服务端服务后存放的类路径。注意是反着的，http://jdk.study.hermit.org/client在客户端生成的类会放在org.hermit.study.jdk.client包下。  
  
下面是发布服务：

![None.gif][] package  org.hermit.study.jdk;  
![None.gif][]  
![None.gif][] import  javax.xml.ws.Endpoint;  
![None.gif][]  
![ExpandedBlockStart.gif][]![ContractedBlock.gif][] public  class  StartService  ... \{  
![ExpandedSubBlockStart.gif][]![ContractedSubBlock.gif][]publicstaticvoid main(String\[\] args) ...\{  
![InBlock.gif][] Endpoint.publish("http://localhost:8080/HelloService", new Hello());  
![ExpandedSubBlockEnd.gif][] \}  
![ExpandedBlockEnd.gif][]\}

呵呵，更简洁。一句话而已。  
http://localhost:8080/HelloService是指发布的地址  
  
运行 StartService  ... ，开发浏览器输入：http://localhost:8080/HelloService?wsdl  
  
  
晕，怎么不能上传图片了。。。。。。。。。。。。  
如果能看到以下内容，就可以

<? xml version="1.0" encoding="UTF-8"  ?>   
\-  < definitions  xmlns ="http://schemas.xmlsoap.org/wsdl/"  xmlns:tns ="http://jdk.study.hermit.org/client"  xmlns:xsd ="http://www.w3.org/2001/XMLSchema"  xmlns:soap ="http://schemas.xmlsoap.org/wsdl/soap/"  targetNamespace ="http://jdk.study.hermit.org/client"  name ="HelloService" >   
 < types  />   
\-  < message  name ="sayHello" >   
 < part  name ="arg0"  type ="xsd:string"  />   
 </ message >   
\-  < message  name ="sayHelloResponse" >   
 < part  name ="return"  type ="xsd:string"  />   
 </ message >   
\-  < portType  name ="Hello" >   
\-  < operation  name ="sayHello"  parameterOrder ="arg0" >   
 < input  message ="tns:sayHello"  />   
 < output  message ="tns:sayHelloResponse"  />   
 </ operation >   
 </ portType >   
\-  < binding  name ="HelloPortBinding"  type ="tns:Hello" >   
 < soap:binding  style ="rpc"  transport ="http://schemas.xmlsoap.org/soap/http"  />   
\-  < operation  name ="sayHello" >   
 < soap:operation  soapAction =""  />   
\-  < input >   
 < soap:body  use ="literal"  namespace ="http://jdk.study.hermit.org/client"  />   
 </ input >   
\-  < output >   
 < soap:body  use ="literal"  namespace ="http://jdk.study.hermit.org/client"  />   
 </ output >   
 </ operation >   
 </ binding >   
\-  < service  name ="HelloService" >   
\-  < port  name ="HelloPort"  binding ="tns:HelloPortBinding" >   
 < soap:address  location ="http://localhost:8080/HelloService"  />   
 </ port >   
 </ service >   
 </ definitions >

[None.gif]: /images/20220828/03530bebbe5c42a4aa9d2f8356d92a4c.png
[ExpandedBlockStart.gif]: http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedBlockStart.gif
[ContractedBlock.gif]: /images/20220828/3de17af33578481b81644a96432de696.png
[ExpandedSubBlockStart.gif]: http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockStart.gif
[ContractedSubBlock.gif]: /images/20220828/6427d50e16b44a7a9ef891dcf0cb4d17.png
[InBlock.gif]: /images/20220828/5e0cd2a2bc3f4019a85aedc10b51d4e2.png
[ExpandedSubBlockEnd.gif]: /images/20220828/cf1ef22f4b01419683b40cd9bd3c9e0f.png
[ExpandedBlockEnd.gif]: /images/20220828/6b12a3d833b245ed9ac7872b7947a50f.png