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
package com.hsy.server; import java.util.List; import javax.jws.WebParam; import javax.jws.WebService; import com.hsy.pojo.User; @WebService public 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
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
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
说明webService服务发布成功。
5、 客户端访问服务
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:
Ok,客户端访问也成功了。
6、 附:
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
<?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
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
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:
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