Java发布一个简单 webservice应用 并发送SOAP请求

一、创建并发布一个简单的webservice应用

　　1、webservice 代码：

　　

 package com.ls.demo;

 import javax.jws.WebMethod;
 import javax.jws.WebService;
 import javax.xml.ws.Endpoint;

 @WebService
 public class HelloWorld {
     @WebMethod
     public String sayHello(String str){
         System.out.println("get Message...");
         String result = "Hello World, "+str;
         return result;
     }
     public static void main(String[] args) {
         System.out.println("server is running");
         String address="http://localhost:9000/HelloWorld";
         Object implementor =new HelloWorld();
         Endpoint.publish(address, implementor);
     }

 }

　　2、运行项目，并访问 "http://localhost:9000/HelloWorld?wsdl"，得到如下wsdl文件，说明webservice发布成功：

　　

 <?xml version="1.0" encoding="UTF-8"?>
 <!-- Published by JAX-WS RI (http://jax-ws.java.net). RI's version is JAX-WS RI 2.2.9-b130926.1035 svn-revision#5f6196f2b90e9460065a4c2f4e30e065b245e51e. -->
 <!-- Generated by JAX-WS RI (http://jax-ws.java.net). RI's version is JAX-WS RI 2.2.9-b130926.1035 svn-revision#5f6196f2b90e9460065a4c2f4e30e065b245e51e. -->
 <definitions xmlns:wsu="http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-wssecurity-utility-1.0.xsd" xmlns:wsp="http://www.w3.org/ns/ws-policy" xmlns:wsp1_2="http://schemas.xmlsoap.org/ws/2004/09/policy" xmlns:wsam="http://www.w3.org/2007/05/addressing/metadata" xmlns:soap="http://schemas.xmlsoap.org/wsdl/soap/" xmlns:tns="http://demo.ls.com/" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns="http://schemas.xmlsoap.org/wsdl/" targetNamespace="http://demo.ls.com/" name="HelloWorldService">
     <types>
         <xsd:schema>
             <xsd:import namespace="http://demo.ls.com/" schemaLocation="http://localhost:9000/HelloWorld?xsd=1"></xsd:import>
         </xsd:schema>
     </types>
     <message name="sayHello">
         <part name="parameters" element="tns:sayHello"></part>
     </message>
     <message name="sayHelloResponse">
         <part name="parameters" element="tns:sayHelloResponse"></part>
     </message>
     <portType name="HelloWorld">
         <operation name="sayHello">
             <input wsam:Action="http://demo.ls.com/HelloWorld/sayHelloRequest" message="tns:sayHello"></input>
             <output wsam:Action="http://demo.ls.com/HelloWorld/sayHelloResponse" message="tns:sayHelloResponse"></output>
         </operation>
     </portType>
     <binding name="HelloWorldPortBinding" type="tns:HelloWorld">
         <soap:binding transport="http://schemas.xmlsoap.org/soap/http" style="document"></soap:binding>
         <operation name="sayHello">
             <soap:operation soapAction=""></soap:operation>
             <input>
             <soap:body use="literal"></soap:body>
             </input>
             <output>
                 <soap:body use="literal"></soap:body>
             </output>
         </operation>
     </binding>
     <service name="HelloWorldService">
         <port name="HelloWorldPort" binding="tns:HelloWorldPortBinding">
             <soap:address location="http://localhost:9000/HelloWorld"></soap:address>
         </port>
     </service>
 </definitions>

二、客户端访问webservice

　　1、通过 HttpClient 及  HttpURLConnection 发送SOAP请求，代码如下：

　　

 import java.io.BufferedReader;
 import java.io.DataOutputStream;
 import java.io.InputStream;
 import java.io.InputStreamReader;
 import java.net.HttpURLConnection;
 import java.net.URL;

 import org.apache.commons.httpclient.HttpClient;
 import org.apache.commons.httpclient.methods.PostMethod;
 import org.apache.commons.httpclient.methods.RequestEntity;
 import org.apache.commons.httpclient.methods.StringRequestEntity;
 import org.apache.commons.io.IOUtils;

 public class TestHelloWrold {
     public static void main(String[] args) throws Exception {
         String wsdl = "http://localhost:9000/HelloWorld?wsdl";
         int timeout = 10000;
         StringBuffer sb = new StringBuffer("");
         sb.append("<?xml version=\"1.0\" encoding=\"UTF-8\"?>");
         sb.append("<soap:Envelope "
                 + "xmlns:api='http://demo.ls.com/' "
                 + "xmlns:xsi='http://www.w3.org/2001/XMLSchema-instance' "
                 + "xmlns:xsd='http://www.w3.org/2001/XMLSchema' "
                 + "xmlns:soap='http://schemas.xmlsoap.org/soap/envelope/'>");
         sb.append("<soap:Body>");
         sb.append("<api:sayHello>");
         sb.append("<arg0>ls</arg0>");
         sb.append("</api:sayHello>");
         sb.append("</soap:Body>");
         sb.append("</soap:Envelope>");

         // HttpClient发送SOAP请求
         System.out.println("HttpClient 发送SOAP请求");
         HttpClient client = new HttpClient();
         PostMethod postMethod = new PostMethod(wsdl);
         // 设置连接超时
         client.getHttpConnectionManager().getParams().setConnectionTimeout(timeout);
         // 设置读取时间超时
         client.getHttpConnectionManager().getParams().setSoTimeout(timeout);
         // 然后把Soap请求数据添加到PostMethod中
         RequestEntity requestEntity = new StringRequestEntity(sb.toString(), "text/xml", "UTF-8");
         //设置请求头部，否则可能会报 “no SOAPAction header” 的错误
         postMethod.setRequestHeader("SOAPAction","");
         // 设置请求体
         postMethod.setRequestEntity(requestEntity);
         int status = client.executeMethod(postMethod);
         // 打印请求状态码
         System.out.println("status:" + status);
         // 获取响应体输入流
         InputStream is = postMethod.getResponseBodyAsStream();
         // 获取请求结果字符串
         String result = IOUtils.toString(is);
         System.out.println("result: " + result);

         // HttpURLConnection 发送SOAP请求
         System.out.println("HttpURLConnection 发送SOAP请求");
         URL url = new URL(wsdl);
         HttpURLConnection conn = (HttpURLConnection) url.openConnection();

         conn.setRequestProperty("Content-Type", "text/xml; charset=utf-8");
         conn.setRequestMethod("POST");
         conn.setUseCaches(false);
         conn.setDoInput(true);
         conn.setDoOutput(true);
         conn.setConnectTimeout(timeout);
         conn.setReadTimeout(timeout);

         DataOutputStream dos = new DataOutputStream(conn.getOutputStream());
         dos.write(sb.toString().getBytes("utf-8"));
         dos.flush();

         BufferedReader reader = new BufferedReader(new InputStreamReader(conn.getInputStream(), "utf-8"));
         String line = null;
         StringBuffer strBuf = new StringBuffer();
         while ((line = reader.readLine()) != null) {
             strBuf.append(line);
         }
         dos.close();
         reader.close();

         System.out.println(strBuf.toString());
     }

 }

　　响应报文如下：

　　

<?xml version="1.0" ?>
　　<S:Envelope xmlns:S="http://schemas.xmlsoap.org/soap/envelope/">
　　　　<S:Body>
　　　　　　<ns2:sayHelloResponse xmlns:ns2="http://demo.ls.com/">
　　　　　　　　<return>Hello World, ls</return>
　　　　　　</ns2:sayHelloResponse>
　　　　</S:Body>
　　</S:Envelope>

　　问：SOAP的请求报文的格式是怎么来的呢？

　　答：可用Eclipse测试WSDL文件，则可得到想要的SOAP请求及响应报文，具体步骤如下图：

第一步：

第二步：

通过第一步，会在浏览器打开如下的页面

　　

　　2、生成客户端代码访问

　　　a、通过 "wsimport"（JDK自带）命令生成客户端代码。进入命令行模式，执行 wsimport -s . http://localhost:9000/HelloWorld?wsdl，就会在当前目录下生成客户端代码。附图：

　　b、通过Eclipse生成客户端代码