CXF实现webService服务（一）

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以前工作中也用CXF,但都是用别人现成搭好的环境，这次自己重头搭建一遍环境。过程中也有遇到的问题，也做了简单的整理。

对于CXF是干什么用的，我不想多说，大家都知道这是我们在Java编程中webService技术的一种实现工具。我们说说为什么用CXF来实现webService：

1. Java的webService实现本身就是一个很耗性能的实现方案（xml与java对象之间在服务端以及客户端的互转比较消耗性能）

2. 目前java主流的webService应用以CXF、AXIS2为主；

3. 通过网络渠道的了解,目前CXF的效率要比AXIS2高出至少50%；

4. 另外有一个webService的工具metro的效率比CXF高出10%；

5. CXF的实现资料网上可以随便找出一大堆，metro的资料相对少一些；

6. CXF在java应用实现中已经很成熟，企业更倾向于用这样一个成熟的解决方案；

基于以上原因，我选择CXF来实现webService。

参考资料：

Java Web 服务: CXF 性能比较----CXF 与最新版本的 Axis2 和 Metro 之间的性能对比

http://www.ibm.com/developerworks/cn/java/j-jws14/

一以annotation注解方式实现发布webService应用

1、基础环境

新建java web工程cxf之后，下载cxf工具包。解压CXF之后，把cxf工具包lib下的jar包全部放到工程的lib下。

此处用到的cxf工具包版本为：apache-cxf-2.7.12

下载地址：

http://www.apache.org/dyn/closer.cgi?path=/cxf/2.7.12/apache-cxf-2.7.12.zip

2、编写服务接口

见文件HelloWorld.java

package com.hsy.server;import java.util.List;import javax.jws.WebParam;import javax.jws.WebService;import com.hsy.pojo.User;@WebServicepublic interface HelloWorld {String sayHi(@WebParam(name="text")String text);      String sayHiToUser(User user);      String[] SayHiToUserList(List<User> userList); }

3、服务接口实现

见文件HelloWorldImpl.java

package com.hsy.server;import java.util.LinkedHashMap;import java.util.List;import java.util.Map;import javax.jws.WebParam;import javax.jws.WebService;import com.hsy.pojo.User;@WebService(endpointInterface="com.hsy.server.HelloWorld",serviceName="HelloWorld")public class HelloWorldImpl implements HelloWorld {Map<Integer, User> users = new LinkedHashMap<Integer, User>();public String sayHi(@WebParam(name = "text") String text) {return "Hello,"+text;}public String sayHiToUser(User user) {users.put(users.size()+1, user);return "Hello,"+user.getName();}public String[] SayHiToUserList(List<User> userList) {String[] result = new String[userList.size()];int i = 0;for(User u:userList){result[i] = "Hello " + u.getName();            i++;}return result;}/** * @param args */public static void main(String[] args) {// TODO Auto-generated method stub}}

4、发布服务app

见文件webServiceApp.java

右键 run as 选择java application发布服务；然后在浏览器输入地址：http://localhost:8080/helloWorld?wsdl

如图：20140805132120.jpg

说明webService服务发布成功。

5、客户端访问服务

见文件HelloWorldClient.java

package com.hsy.client;import org.apache.cxf.jaxws.JaxWsProxyFactoryBean;import com.hsy.pojo.User;import com.hsy.server.HelloWorld;public class HelloWorldClient {/** * @param args */public static void main(String[] args) {//首先右键run as 运行com.hsy.server.webServiceApp类，然后再运行这段客户端代码JaxWsProxyFactoryBean jwpfb = new JaxWsProxyFactoryBean();jwpfb.setServiceClass(HelloWorld.class);jwpfb.setAddress("http://localhost:8080/helloWorld");        HelloWorld hw = (HelloWorld) jwpfb.create();        User user = new User();        user.setName("马克思");        user.setDescription("怀念马克思");        System.out.println(hw.sayHiToUser(user));            }}

右键 run as 选择java application，控制台打印如图：

20140805132610.jpg

Ok，客户端访问也成功了。

6、附：

User.java

package com.hsy.pojo;import java.io.Serializable;@SuppressWarnings("serial")public class User implements Serializable {private String id;private String name;private String age;private String description;public User() {super();}public String getId() {return id;}public void setId(String id) {this.id = id;}public String getName() {return name;}public void setName(String name) {this.name = name;}public String getAge() {return age;}public void setAge(String age) {this.age = age;}public String getDescription() {return description;}public void setDescription(String description) {this.description = description;}}

二与spring集成实现webService

1、配置web.xml

见文件web.xml

<?xml version="1.0" encoding="UTF-8"?><web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://java.sun.com/xml/ns/javaee" xmlns:web="http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" id="WebApp_ID" version="2.5">  <display-name>cxf</display-name>  <welcome-file-list>    <welcome-file>index.html</welcome-file>    <welcome-file>index.htm</welcome-file>    <welcome-file>index.jsp</welcome-file>    <welcome-file>default.html</welcome-file>    <welcome-file>default.htm</welcome-file>    <welcome-file>default.jsp</welcome-file>  </welcome-file-list>   <context-param>     <param-name>contextConfigLocation</param-name>     <param-value>WEB-INF/classes/applicationContext.xml</param-value> </context-param> <listener>      <listener-class>              org.springframework.web.context.ContextLoaderListener      </listener-class> </listener>  <servlet>        <servlet-name>CXFServlet</servlet-name>        <servlet-class>               org.apache.cxf.transport.servlet.CXFServlet        </servlet-class>        <load-on-startup>1</load-on-startup>  </servlet>  <servlet-mapping>         <servlet-name>CXFServlet</servlet-name>         <url-pattern>/webservice/*</url-pattern>  </servlet-mapping>          <!-- 字符过滤器 -->      <filter>          <filter-name>encoding</filter-name>          <filter-class>org.springframework.web.filter.CharacterEncodingFilter</filter-class>          <init-param>              <param-name>encoding</param-name>              <param-value>UTF-8</param-value>          </init-param>          <init-param>              <param-name>forceEncoding</param-name>              <param-value>true</param-value>          </init-param>      </filter>                  <filter-mapping>          <filter-name>encoding</filter-name>          <url-pattern>*.jsp</url-pattern>      </filter-mapping>      <filter-mapping>          <filter-name>encoding</filter-name>          <url-pattern>*.html</url-pattern>      </filter-mapping>      <filter-mapping>          <filter-name>encoding</filter-name>          <url-pattern>*.do</url-pattern>      </filter-mapping>      <filter-mapping>          <filter-name>encoding</filter-name>          <url-pattern>*.action</url-pattern>      </filter-mapping>     <filter-mapping>          <filter-name>encoding</filter-name>          <url-pattern>*.jsp</url-pattern>      </filter-mapping>      <filter-mapping>          <filter-name>encoding</filter-name>          <url-pattern>*.html</url-pattern>      </filter-mapping>      <filter-mapping>          <filter-name>encoding</filter-name>          <url-pattern>*.do</url-pattern>      </filter-mapping>      <filter-mapping>          <filter-name>encoding</filter-name>          <url-pattern>*.3g</url-pattern>      </filter-mapping>     </web-app>

2、配置applicationContext.xml

见文件applicationContext.xml

<?xml version="1.0" encoding="UTF-8"?><beans xmlns="http://www.springframework.org/schema/beans"       xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"       xmlns:jaxws="http://cxf.apache.org/jaxws"       xsi:schemaLocation="             http://www.springframework.org/schema/beans             http://www.springframework.org/schema/beans/spring-beans.xsd             http://cxf.apache.org/jaxws              http://cxf.apache.org/schemas/jaxws.xsd">      <import resource="classpath:META-INF/cxf/cxf.xml"/>      <import resource="classpath:META-INF/cxf/cxf-extension-soap.xml"/>      <import resource="classpath:META-INF/cxf/cxf-servlet.xml"/>      <jaxws:endpoint              id="helloWorld"             implementor="com.hsy.server.HelloWorldImpl"             address="/helloWorld" />     <bean id="client"      class="com.hsy.server.HelloWorld"      factory-bean="clientFactory"      factory-method="create"/>     <bean id="clientFactory" class="org.apache.cxf.jaxws.JaxWsProxyFactoryBean">            <property name="serviceClass" value="com.hsy.server.HelloWorld"/>            <property name="address" value="http://localhost:8080/cxf/webservice/helloWorld"/>     </bean>     </beans>

3、修改客户端代码

见文件HelloWorldClient.java

package com.hsy.client;import java.util.ArrayList;import java.util.List;import org.springframework.beans.factory.BeanFactory;import org.springframework.beans.factory.xml.XmlBeanFactory;import org.springframework.context.ApplicationContext;import org.springframework.context.support.ClassPathXmlApplicationContext;import org.springframework.core.io.FileSystemResource;import org.springframework.core.io.Resource;import com.hsy.pojo.User;import com.hsy.server.HelloWorld;public class HelloWorldClient {/** * @param args */public static void main(String[] args) {//Resource resource= new FileSystemResource("F:/workspaces4me2013/.metadata/.me_tcat/WEB-INF/classes/applicationContext.xml");   //BeanFactory factory= new XmlBeanFactory(resource ); ApplicationContext factory = new ClassPathXmlApplicationContext("/applicationContext.xml");HelloWorld client = (HelloWorld)factory.getBean("client");        User user1 = new User();        user1.setName("马克思");        user1.setDescription("怀念马克思");        User user2 = new User();        user2.setName("恩格斯");        user2.setDescription("怀念恩格斯");        List<User> userList= new ArrayList<User>();        userList.add(user1);        userList.add(user2);        String[] res = client.SayHiToUserList(userList);        System.out.println(res[0]);        System.out.println(res[1]);              }}

4、启动tamcat发布webService

然后在浏览器输入地址：http://localhost:8080/cxf/webservice/helloWorld?wsdl

如图：20140805133642.jpg

说明webService服务发布成功

5、运行客户端代码访问webService

右键 run as 选择java application，控制台打印如图：

20140805134838.jpg

Ok，客户端访问也成功了。

本文为转载文章

原文出处： blog.csdn.net/hu_shengyang/article/details/38384597

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