使用JDK编写webService

在JDK1.6以及以上版本中，已经加入了原生的webService的支持，通过简单的编写就可以实现一个java webService

一、编写服务器代码

1、定义SEI（Service Endpoint Interface 发布的服务接口）

首先，创建一个普通的java project，命名为ws_server，并在src下创建一个包，命名为com.study.ws_server

之后创建名称为HelloWS的接口，其中内容如下：

HelloWS.java

package com.study.ws_server;import javax.jws.WebMethod;import javax.jws.WebService;@WebServicepublic interface HelloWS {@WebMethodpublic String sayHello(String name);}

2、实现webService服务器代码

创建类HelloWSImpl，并实现HelloWS

HelloWSImpl.java

package com.study.ws_server;import javax.jws.WebService;@WebServicepublic class HelloWSImpl implements HelloWS {@Overridepublic String sayHello(String name) {System.out.println("com.study.ws_server.HelloWSImpl: " + name);return "Hello " + name;}}

这里仅仅是接收到的参数简单处理一下就返回了

3、发布webService

创建包com.study.ws_server.server，并创建类ServerTest

ServerTest.java

package com.study.ws_server.server;import javax.xml.ws.Endpoint;import com.study.ws_server.HelloWS;import com.study.ws_server.HelloWSImpl;public class ServerTest {public static void main(String[] args) {String address = "http://localhost:8888/ws_server";HelloWS helloWS = new HelloWSImpl();Endpoint.publish(address, helloWS);System.out.println("ServerTest publish success!");}}

编写完成，运行ServerTest.java，控制台提示成功后，在浏览器输入http://localhost:8888/ws_server?wsdl，得到的内容如下：

<!-- Published by JAX-WS RI at http://jax-ws.dev.java.net. RI's version is JAX-WS RI 2.2.4-b01. --><!-- Generated by JAX-WS RI at http://jax-ws.dev.java.net. RI's version is JAX-WS RI 2.2.4-b01. --><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://ws_server.study.com/" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns="http://schemas.xmlsoap.org/wsdl/" targetNamespace="http://ws_server.study.com/" name="HelloWSImplService"><types><xsd:schema><xsd:import namespace="http://ws_server.study.com/" schemaLocation="http://localhost:8888/ws_server?xsd=1"/></xsd:schema></types><message name="sayHello"><part name="parameters" element="tns:sayHello"/></message><message name="sayHelloResponse"><part name="parameters" element="tns:sayHelloResponse"/></message><portType name="HelloWSImpl"><operation name="sayHello"><input wsam:Action="http://ws_server.study.com/HelloWSImpl/sayHelloRequest" message="tns:sayHello"/><output wsam:Action="http://ws_server.study.com/HelloWSImpl/sayHelloResponse" message="tns:sayHelloResponse"/></operation></portType><binding name="HelloWSImplPortBinding" type="tns:HelloWSImpl"><soap:binding transport="http://schemas.xmlsoap.org/soap/http" style="document"/><operation name="sayHello"><soap:operation soapAction=""/><input><soap:body use="literal"/></input><output><soap:body use="literal"/></output></operation></binding><service name="HelloWSImplService"><port name="HelloWSImplPort" binding="tns:HelloWSImplPortBinding"><soap:address location="http://localhost:8888/ws_server"/></port></service></definitions>

根据上面的内容可以生成客户端代码

二、编写客户端代码

1、根据WSDL文件生成客户端代码

创建java project 命名为ws_client

鼠标右键src，选择terminal

在弹出的终端中输入wsimport -keep http://localhost:8888/ws_server?wsdl，并回车

等待提示代码生成完毕后刷新src，可以看到自动生成的代码

2、调用服务器webService接口

创建包com.study.ws_client.client，并创建类ClientTest

ClientTest.java

package com.study.ws_client.client;import com.study.ws_server.HelloWSImpl;import com.study.ws_server.HelloWSImplService;public class ClientTest {public static void main(String[] args) {HelloWSImplService service = new HelloWSImplService();HelloWSImpl helloWSImplPort = service.getHelloWSImplPort();String result = helloWSImplPort.sayHello("Andy");System.out.println("result content: " + result);}}

编写完毕后，运行ClientTest，控制台显示结果为：

result content: Hello Andy