Apache CXF实现WebService入门教程（附完整源码）

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　　Apache CXF实现WebService非常简单实用，只需要几步就可以实现一个简单的web service。
　　首先我们需要新建一个maven项目，在pom中添加依赖和jetty作为测试的web service的web容器。
　　如下是测试用到的pom文件内容：



<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>cn.outofmemory</groupId>
<artifactId>hello-apache-cxf</artifactId>
<version>0.0.1-SNAPSHOT</version>
<packaging>jar</packaging>
<name>hello-apache-cxf</name>
<url>http://maven.apache.org</url>
<properties>  
<cxf.version>2.2.7</cxf.version>  
</properties>  
<dependencies>  
<dependency>  
<groupId>org.apache.cxf</groupId>  
<artifactId>cxf-rt-frontend-jaxws</artifactId>  
<version>${cxf.version}</version>  
</dependency>  
<dependency>  
<groupId>org.apache.cxf</groupId>  
<artifactId>cxf-rt-transports-http</artifactId>  
<version>${cxf.version}</version>  
</dependency>  
<dependency>  
<groupId>org.apache.cxf</groupId>  
<artifactId>cxf-rt-transports-http-jetty</artifactId>  
<version>${cxf.version}</version>  
</dependency>  
<dependency>  
<groupId>org.apache.cxf</groupId>  
<artifactId>cxf-rt-ws-security</artifactId>  
<version>${cxf.version}</version>  
</dependency>  
<dependency>  
<groupId>org.apache.cxf</groupId>  
<artifactId>cxf-rt-ws-policy</artifactId>  
<version>${cxf.version}</version>  
</dependency>  
<dependency>  
<groupId>org.apache.cxf</groupId>  
<artifactId>cxf-bundle-jaxrs</artifactId>  
<version>${cxf.version}</version>  
</dependency>  
<dependency>  
<groupId>javax.ws.rs</groupId>  
<artifactId>jsr311-api</artifactId>  
<version>1.1.1</version>  
</dependency>  
<dependency>  
<groupId>org.slf4j</groupId>  
<artifactId>slf4j-api</artifactId>  
<version>1.5.8</version>  
</dependency>  
<dependency>  
<groupId>org.slf4j</groupId>  
<artifactId>slf4j-jdk14</artifactId>  
<version>1.5.8</version>  
</dependency>  
<dependency>  
<groupId>commons-httpclient</groupId>  
<artifactId>commons-httpclient</artifactId>  
<version>3.0</version>  
</dependency>  
<dependency>  
<groupId>commons-io</groupId>  
<artifactId>commons-io</artifactId>  
<version>2.3</version>  
</dependency>  
<dependency>  
<groupId>junit</groupId>  
<artifactId>junit</artifactId>  
<version>4.8.1</version>  
<scope>test</scope>  
</dependency>  
</dependencies>
<build>  
<finalName>hello-apache-cxf</finalName>  
<resources>  
<resource>  
<directory>src/main/resources</directory>  
</resource>  
<resource>  
<directory>src/main/java</directory>  
<includes>  
<include>**</include>  
</includes>  
<excludes>  
<exclude>**/*.java</exclude>  
</excludes>  
</resource>  
</resources>  
<plugins>  
<plugin>  
<groupId>org.mortbay.jetty</groupId>  
<artifactId>maven-jetty-plugin</artifactId>  
<configuration>  
<contextPath>/</contextPath>  
<connectors>  
<connector implementation="org.mortbay.jetty.nio.SelectChannelConnector">  
<port>9000</port>  
</connector>  
</connectors>  
</configuration>  
</plugin>  
<plugin>  
<groupId>org.apache.maven.plugins</groupId>  
<artifactId>maven-compiler-plugin</artifactId>  
<configuration>  
<source>1.5</source>  
<target>1.5</target>  
</configuration>  
</plugin>  
</plugins>  
</build>  
</project>
　　然后需要定义web service接口，在接口定义中要添加必要的annotation注解来标注出来webservice接口和提供的方法，以及参数等，如下接口文件：



package cn.outofmemory.hello.apache.cxf;
import javax.jws.WebMethod;
import javax.jws.WebParam;
import javax.jws.WebResult;
import javax.jws.WebService;
@WebService
public interface HelloService {
@WebMethod
@WebResult String hello(@WebParam String who);
}
　　定义完接口之后需要实现接口，接口实现代码如下：



package cn.outofmemory.hello.apache.cxf;
public class SimpleHelloService implements HelloService {
public String hello(String who) {
return "hello " + who;
}
}
　　这个实现类不需要做任何的标注。
　　这样webservice的实现部分就算完了，我们需要在web容器中运行web service，如下Server代码：



package cn.outofmemory.hello.apache.cxf;
import org.apache.cxf.jaxws.JaxWsServerFactoryBean;
public class Server {
public static void main(String[] args) throws Exception {
JaxWsServerFactoryBean factory = new JaxWsServerFactoryBean();  
factory.setServiceClass(SimpleHelloService.class);  
factory.setAddress("http://localhost:9000/ws/HelloService");  
factory.create();  
System.out.println("Server start...");  
}
}
　　可以运行这个类，然后在浏览器中访问：http://localhost:9000/ws/HelloService。
　　可以让Server端保持启动状态，下面我们写Client端来调用server端的webservice，如下client端代码：



package cn.outofmemory.hello.apache.cxf;
import org.apache.cxf.jaxws.JaxWsProxyFactoryBean;
public class ServiceClient {
public static void main(String[] args) {  
JaxWsProxyFactoryBean factory = new JaxWsProxyFactoryBean();  
factory.setServiceClass(HelloService.class);  
factory.setAddress("http://localhost:9000/ws/HelloService");  
HelloService helloworld = (HelloService) factory.create();  
System.out.println(helloworld.hello("outofmemory.cn"));  
System.exit(0);  
}  
}
　　运行client，可以得到hello outofmemory.cn的输出。
　　下载本文源代码
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