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webservice学习笔记 --- day03 CXF+Spring+REST

一:CXF整合Spring发布REST服务

1.开发步骤

(1.)  创建Web项目,引入jar
(2.)  创建实体类
package com.cxf.rest.pojo;

import java.util.Date;

import javax.xml.bind.annotation.XmlRootElement;

@XmlRootElement
public class Student {

	private Integer id;
	private String name;
	private Date birthday;

	public Integer getId() {
		return id;
	}

	public void setId(Integer id) {
		this.id = id;
	}

	public String getName() {
		return name;
	}

	public void setName(String name) {
		this.name = name;
	}

	public Date getBirthday() {
		return birthday;
	}

	public void setBirthday(Date birthday) {
		this.birthday = birthday;
	}

}
           
(3.)  创建SEI接口
package com.cxf.rest.service;

import java.util.List;

import javax.jws.WebService;
import javax.ws.rs.GET;
import javax.ws.rs.POST;
import javax.ws.rs.Path;
import javax.ws.rs.PathParam;
import javax.ws.rs.Produces;
import javax.ws.rs.core.MediaType;

import com.cxf.rest.pojo.Student;

@WebService
@Path("/student")//将请求路径中的"/student"映射到该接口上
public interface StudentInterface {

	//查询单个学生
	@GET//指定请求方式,服务端如果发布时指定为GET(POST),客户端访问时必须使用GET(POST)
	@Produces(MediaType.APPLICATION_XML)//指定媒体类型,XML
	@Path("/query/{id}")//@Path("/query/{id}")的意思是将请求路径中的/query映射到方法上,/{id}映射到对应的参数上,如果有多个参数以/隔开加入到{}
	public Student query(@PathParam("id")Integer id);
	
	//查询多个学生
	@GET//指定请求方式,服务端如果发布时指定为GET(POST),客户端访问时必须使用GET(POST)
	@Produces({"application/json;charset=utf-8",MediaType.APPLICATION_XML})//指定媒体类型,JSON
	@Path("/queryList/{name}")//@Path("/queryList/{name}")的意思是将请求路径中的/queryList映射到方法上,/{name}映射到对应的参数上,如果有多个参数以/隔开加入到{}
	public List<Student> queryList(@PathParam("name")String name);
}
           
(4.)  创建实现类
package com.cxf.rest.service.impl;

import java.util.ArrayList;
import java.util.Date;
import java.util.List;

import com.cxf.rest.pojo.Student;
import com.cxf.rest.service.StudentInterface;

public class StudentInterfaceImpl implements StudentInterface {

	@Override
	public Student query(Integer id) {
		Student st = new Student();
		st.setId(110);
		st.setName("张三");
		st.setBirthday(new Date());
		return st;
	}

	@Override
	public List<Student> queryList(String name) {
		Student st = new Student();
		st.setId(110);
		st.setName("张三");
		st.setBirthday(new Date());
		
		Student st2 = new Student();
		st2.setId(120);
		st2.setName("李四");
		st2.setBirthday(new Date());
		
		List<Student> list = new ArrayList<Student>();
		list.add(st);
		list.add(st2);
		return list;
	}

}
           
(5.)  配置spring的核心配置文件
<?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"
	xmlns:jaxrs="http://cxf.apache.org/jaxrs" xmlns:cxf="http://cxf.apache.org/core"
	xsi:schemaLocation="http://www.springframework.org/schema/beans 
				            http://www.springframework.org/schema/beans/spring-beans.xsd
				            http://cxf.apache.org/jaxrs http://cxf.apache.org/schemas/jaxrs.xsd
				            http://cxf.apache.org/jaxws http://cxf.apache.org/schemas/jaxws.xsd
				            http://cxf.apache.org/core http://cxf.apache.org/schemas/core.xsd">
				            
		<!-- 发布rest服务 -->		            
		<jaxws:server address="/user">
			<jaxws:serviceBean>
				<ref bean="studentServer"/>
			</jaxws:serviceBean>
		</jaxws:server>		            
				            
		<!-- 服务实现类 -->
		<bean name="studentServer" class="com.cxf.rest.service.impl.StudentInterfaceImpl"></bean>		            
				            
</beans>
           
(6.)  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" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd" id="WebApp_ID" version="3.0">
  <display-name>ws_2_cxf_spring_server</display-name>
  <!-- 配置spring的上下文,该配置可以有,也可以步配置,配置之后,在配置的路径下加载,如果不配置,默认的路径是:/WEB-INF/applicationContext.xml -->
  <context-param>
  	<!--  contextConfigLocation名称不能修改,指定spring配置文件地址 -->
  	<param-name>contextConfigLocation</param-name>
  	<param-value>classpath:applicationContext.xml</param-value>
  </context-param>
  <!-- 配置spring的监听器listener -->
  <listener>
  	<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
  </listener>
  
  <!-- 配置CXF的servlet -->
  <servlet>
  	<servlet-name>cxf</servlet-name>
  	<servlet-class>org.apache.cxf.transport.servlet.CXFServlet</servlet-class>
  </servlet>
  <servlet-mapping>
  	<servlet-name>cxf</servlet-name>
  	<!-- 
  	四种映射方式:
  	1.路径映射:以/开头,以/*结尾
  	2.扩展映射:以*.结尾,比如*.do,*.action
  	3.默认映射:直接写/
  	4.精确映射
  	映射规则:
  	1.最高:精确映射
  	2.次高:路径映射
  	3.三高:扩展映射
  	4.最后:默认映射,如果没有配置默认映射,报异常
  	 -->
  	<url-pattern>/ws/*</url-pattern>
  </servlet-mapping>
  
  <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>
</web-app>
           
(7.)  部署启动tomcat
(8.)  测试服务是否发布成功

REST服务的使用说明书地址:

http://127.0.0.1:8080/ws_4_cxf_rest_spring_server/ws/user?_wadl

服务地址规则:

http://ip:端口号/项目名称/servlet拦截路径/服务名称/接口映射/方法映射/参数映射

继续阅读