WebService入门一、Hello WebService

• bin目录下是两个自动生成一些文件的工具，分别是wsgen.bat（对应linux环境的wsgen.sh）和wsimport.bat（对应linux环境的wsimport.sh）。wsgen命令主要用于Server端通过Java类编译成WebService及相关的wsdl文件；wsimport则主要用于Client端（即调用端）通过wsdl文件编译出调用Server端的Java文件。
• doc目录下是JAX-WS的发布文档。包括一些发布日志和用户手册，还有wsgen和wsimport工具的使用法及一些常见问题等等。
• lib目录下包含Java工程所需的所有Jar包，在后面开发时需要将这些jar包导入到工程中。
• samples目录下包含一些WebService的示例。

服务端的Hello WebService

package com.ws;

import javax.jws.WebMethod;
import javax.jws.WebService;

/**
 * WebService入门学习
 * WebService注解是告诉JAXWS，这是一个WebService类
 * 
 * @author 14040875
 *
 */
@WebService
public class Hello {

	/**
	 * 向接收的名字问好
	 * WebMethod注解告诉JAXWS，此方法为soap方法
	 * 
	 * @param name
	 * @return
	 */
	@WebMethod
	public String say(String name){
		
		return "Hello," + name;
	}
	
}

wsgen -cp D:devapache-tomcat-7.0.53webappsHelloWebServiceWEB-INFclasses com.ws.Hello -wsdl -s wssrc -d build -r wsdl

• -wsdl 表示生成的是webservice
• -s 指出生成的.java文件放置位置
• -d 用于提示要生成的编译class文件在何处
• -r 表示生成.wsdl和xsd文件放于何处
• -cp 代表classpath，也就是Hello.class的位置

<?xml version="1.0" encoding="UTF-8"?>
<endpoints xmlns='http://java.sun.com/xml/ns/jax-ws/ri/runtime'
    version='2.0'>
    <endpoint name='Hello' implementation='com.ws.Hello'
        url-pattern='/HelloService' />
</endpoints>

<?xml version="1.0" encoding="UTF-8"?>
<web-app>
	<servlet>
        <span style="white-space:pre">	</span><servlet-name>Hello</servlet-name>
        <span style="white-space:pre">	</span><servlet-class>com.sun.xml.ws.transport.http.servlet.WSServlet</servlet-class>
        <span style="white-space:pre">	</span><load-on-startup>2</load-on-startup>
	</servlet>
	<servlet-mapping>
        <span style="white-space:pre">	</span><servlet-name>Hello</servlet-name>
        <span style="white-space:pre">	</span><url-pattern>/HelloService</url-pattern>
	</servlet-mapping>
</web-app>

使用WebService接口

wsimport -keep -d bin -s src wsdl/HelloService.wsdl

package com.ws;

public class HelloClient {
	
	public static void main(String[] args) {
		HelloService service = new HelloService();
		Hello port = service.getHelloPort();
		System.out.println(port.say("Mike"));
	}
	
}

<?xml version="1.0" encoding="UTF-8"?>
<bindings xmlns:xsd="http://www.w3.org/2001/XMLSchema"
    xmlns:wsdl="http://schemas.xmlsoap.org/wsdl/" wsdlLocation="wsdl/HelloService.wsdl"
    xmlns="http://java.sun.com/xml/ns/jaxws">
    <bindings node="wsdl:definitions">
        <enableAsyncMapping>true</enableAsyncMapping>
    </bindings>
</bindings>

wsimport -keep –b binding.xml  -d bin -s src wsdl/HelloService.wsdl

package com.ws;

import javax.xml.ws.Response;

public class HelloClient {
	public static void main(String[] args) throws Exception {
		HelloService service = new HelloService();
		Hello port = service.getHelloPort();
		Response<SayResponse> sayAsync = port.sayAsync("Mike");
		while (!sayAsync.isDone()) {
			System.out.println("waiting...");
		}
		try {
			SayResponse callNameResponse = sayAsync.get();
			String message = callNameResponse.getReturn();
			System.out.println(message);
		} catch (Exception ex) {
		}
	}
}

package com.ws;
import javax.xml.ws.AsyncHandler;
import javax.xml.ws.Response;
public class HelloClient {
    public static void main(String[] args) throws Exception {
        HelloService service = new HelloService();
        Hello port = service.getHelloPort();
        port.sayAsync("Mike",new AsyncHandler<SayResponse>() {
            public void handleResponse(Response<SayResponse> res) {
                try {
                    SayResponse response = null;
                    response = res.get();
                    String message = response.getReturn();
                    System.out.println(message);
                } catch (Exception e) {
                    e.printStackTrace();
                }
                System.out.println("Callback!");
            }
        });
        System.out.println("begin waiting...");
        Thread.sleep(1000);
    }
}