JAX-WS简介:
JAX_RPC(Java API for XML-Based RPC)允许Java应用程序可以通过已知的描述信息调用一个基于Java的Web服务,描述信息与Web服务的WSDL描述相一致
JAX-RPC2.0更名为JAX-WS2.0(java API for XML-Based Web Services)
JAX-WS中,一个远程调用可以转换为一个基于XML的协议,如SOAP。开发者在使用JAX-WS的过程中,不需要编写任何生成、处理SOAP消息的代码,JAX-WS在运行时自动将API的调用转换为相应的SOAP消息
在服务器端,用户只需要通过Java语言定义远程调用所需实现的接口,并提供相应实现,通过调用JAX-WS的服务发布接口即可将其发布为WebService接口
在客户端,用户可以通过JAX-WS的API创建一个代理来实现对于远程服务器端的调用
JAX-WS服务端:
JAX-WS服务端采用注释描述WebService,不再依赖WebService描述文件
使用JDK1.6_45(JDK1.5中不包含所需类)
- package com.sean.server;
-
- import javax.jws.WebMethod;
- import javax.jws.WebParam;
- import javax.jws.WebService;
-
- @WebService
- public interface Plus {
-
- @WebMethod
- public int plus(@WebParam(name="x") int x,@WebParam(name="y") int y);
- }
- package com.sean.server;
-
- import javax.jws.WebMethod;
- import javax.jws.WebParam;
- import javax.jws.WebService;
-
- @WebService
- public class PlusImpl implements Plus {
-
- @WebMethod
- public int plus(@WebParam(name="x") int x, @WebParam(name="y") int y) {
- return x + y;
- }
- }
- package com.sean.server;
-
- import javax.xml.ws.Endpoint;
-
- public class Server {
- public static void main(String[] args) {
- PlusImpl plus = new PlusImpl();
- String addr = "http://127.0.0.1:8888/Plus";
- Endpoint.publish(addr, plus);
- }
- }
程序启动后,访问http://127.0.0.1:8888/Plus?wsdl即可查看自动生成的WSDL文件
- <?xml version="1.0" encoding="UTF-8"?>
- <!-- Published by JAX-WS RI at http://jax-ws.dev.java.net. RI's version is
- JAX-WS RI 2.1.6 in JDK 6. -->
- <!-- Generated by JAX-WS RI at http://jax-ws.dev.java.net. RI's version is
- JAX-WS RI 2.1.6 in JDK 6. -->
- <definitions name="PlusImplService" targetNamespace="http://server.sean.com/"
- xmlns="http://schemas.xmlsoap.org/wsdl/" xmlns:xsd="http://www.w3.org/2001/XMLSchema"
- xmlns:tns="http://server.sean.com/" xmlns:soap="http://schemas.xmlsoap.org/wsdl/soap/">
- <types>
- <xsd:schema>
- <xsd:import schemaLocation="http://127.0.0.1:8888/Plus?xsd=1"
- namespace="http://server.sean.com/" />
- </xsd:schema>
- </types>
- <message name="plus">
- <part name="parameters" element="tns:plus" />
- </message>
- <message name="plusResponse">
- <part name="parameters" element="tns:plusResponse" />
- </message>
- <portType name="PlusImpl">
- <operation name="plus">
- <input message="tns:plus" />
- <output message="tns:plusResponse" />
- </operation>
- </portType>
- <binding name="PlusImplPortBinding" type="tns:PlusImpl">
- <soap:binding style="document"
- transport="http://schemas.xmlsoap.org/soap/http" />
- <operation name="plus">
- <soap:operation soapAction="" />
- <input>
- <soap:body use="literal" />
- </input>
- <output>
- <soap:body use="literal" />
- </output>
- </operation>
- </binding>
- <service name="PlusImplService">
- <port name="PlusImplPort" binding="tns:PlusImplPortBinding">
- <soap:address location="http://127.0.0.1:8888/Plus" />
- </port>
- </service>
- </definitions>
使用 SoapUI5.0.0尝试用上面的WSDL创建WebService服务端报错(org.apache.xmlbeans.XmlException:error:does not close tag.)
使用SoapUI4.5.2则一切正常,只能归咎于不同版本的SoapUI对文件格式校验不同
JAX-WS客户端:
- package com.sean.client;
-
- import java.net.URL;
-
- import javax.xml.namespace.QName;
- import javax.xml.ws.Service;
-
- import com.sean.server.Plus;
-
- public class Client {
- public static void main(String[] args) throws Exception {
- QName serviceName = new QName("http://server.sean.com/", "PlusImplService");
- QName portName = new QName("http://server.sean.com/", "PlusImplPort");
-
- String addr = "http://127.0.0.1:8888/Plus?wsdl";
- URL url = new URL(addr);
-
- Service service = Service.create(url, serviceName);
- Plus plus = service.getPort(portName,Plus.class);
-
-
- int result = plus.plus(1, 2);
- System.out.println("result:" + result);
- }
- }
使用Plus plus = service.getPort(Plus.class)方法时,客户端调用时报错:
- Exception in thread "main" javax.xml.ws.WebServiceException: Undefined port type: {http://server.sean.com/}Plus
解决方式一:
如客户端示例,将Plus plus = service.getPort(Plus.class)修改为Plus plus = service.getPort(portName,Plus.class)
解决方式二:
修改PlusImpl类的@WebService标记修改为@WebService(endpointInterface="com.sean.server.Plus")
参考:http://stackoverflow.com/questions/13417454/javax-xml-ws-webserviceexception-undefined-port-type-java-struts-soap-wsdl
文章出处:http://blog.youkuaiyun.com/a19881029/article/details/32101373