在JDK1.6以及以上版本中，已經加入了原生的webService的支援，通過簡單的編寫就可以實現一個java webService

一、編寫伺服器程式碼

1、定義SEI（ServiceEndpoint Interface 釋出的服務介面）

首先，建立一個普通的java project，命名為ws_server，並在src下建立一個包，命名為com.study.ws_server

之後建立名稱為HelloWS的介面，其中內容如下：

HelloWS.java

package com.study.ws_server;

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

@WebService
public interface HelloWS {
	@WebMethod
	public String sayHello(String name);
	
}
 

建立類HelloWSImpl，並實現HelloWS

HelloWSImpl.java

package com.study.ws_server;

import javax.jws.WebService;

@WebService
public class HelloWSImpl implements HelloWS {

	@Override
	public String sayHello(String name) {
		
		System.out.println("com.study.ws_server.HelloWSImpl: " + name);
		
		return "Hello " + name;
	}

}
 

3、釋出webService

建立包com.study.ws_server.server，並建立類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!");
	}
}
 

編寫完成，執行ServerTest.java，控制檯提示成功後，在瀏覽器輸入http://localhost:8888/ws_server?wsdl，得到的內容如下：

<!--
 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>

二、編寫客戶端程式碼

1、根據WSDL檔案生成客戶端程式碼

建立java project 命名為ws_client

滑鼠右鍵src，選擇terminal

在彈出的終端中輸入wsimport -keep http://localhost:8888/ws_server?wsdl，並回車

等待提示程式碼生成完畢後重新整理src，可以看到自動生成的程式碼

2、呼叫伺服器webService介面

建立包com.study.ws_client.client，並建立類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);
		
	}
}

result content: Hello Andy