CXF實現webService服務(一)
以前工作中也用CXF,但都是用別人現成搭好的環境,這次自己重頭搭建一遍環境。過程中也有遇到的問題,也做了簡單的整理。
對於CXF是幹什麼用的,我不想多說,大家都知道這是我們在java程式設計中webService技術的一種實現工具。我們說說為什麼用CXF來實現webService:
1. Java的webService實現本身就是一個很耗效能的實現方案(xml與java物件之間在服務端以及客戶端的互轉比較消耗效能)
2. 目前java主流的webService應用以CXF、AXIS2為主;
3. 通過網路渠道的瞭解,目前CXF的效率要比AXIS2高出至少50%;
4. 另外有一個webService的工具metro的效率比CXF高出10%;
5. CXF的實現資料網上可以隨便找出一大堆,metro的資料相對少一些;
6. CXF在java應用實現中已經很成熟,企業更傾向於用這樣一個成熟的解決方案;
基於以上原因,我選擇CXF來實現webService。
參考資料:
Java Web 服務: CXF 效能比較----CXF 與最新版本的 Axis2 和 Metro 之間的效能對比
一 以annotation註解方式實現釋出webService應用
1、 基礎環境
新建java web工程cxf之後,下載cxf工具包。解壓CXF之後,把cxf工具包lib下的jar包全部放到工程的lib下。
此處用到的cxf工具包版本為:apache-cxf-2.7.12
下載地址:
2、 編寫服務介面
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、 服務介面實現
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、 釋出服務app
package com.hsy.server;
import javax.xml.ws.Endpoint;
public class webServiceApp {
/**
* @param args
*/
public static void main(String[] args) {
System.out.println("web service start");
HelloWorldImpl implementor = new HelloWorldImpl();
String address = "http://localhost:8080/helloWorld";
Endpoint.publish(address, implementor);
System.out.println("web service started");
}
}
說明webService服務釋出成功。
5、 客戶端訪問服務
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) {
//首先右鍵run as 執行com.hsy.server.webServiceApp類,然後再執行這段客戶端程式碼
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("馬克思");
user.setDescription("懷念馬克思");
System.out.println(hw.sayHiToUser(user));
}
}
右鍵 run as 選擇java application,控制檯列印如圖:
Ok,客戶端訪問也成功了。
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;
}
}
二與spring整合實現webService
1、 配置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>
<!-- 字元過濾器 -->
<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、 修改客戶端程式碼
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("馬克思");
user1.setDescription("懷念馬克思");
User user2 = new User();
user2.setName("恩格斯");
user2.setDescription("懷念恩格斯");
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、 啟動tamcat釋出webService
說明webService服務釋出成功。
5、 執行客戶端程式碼訪問webService
右鍵 run as 選擇java application,控制檯列印如圖:
Ok,客戶端訪問也成功了。
此篇實現了webService服務的釋出以及在本工程下的客戶端呼叫服務的示例,或許不是很直觀。
http://blog.csdn.net/hu_shengyang/article/details/38384839