Jersey实现Restful webservice及Ajax访问
jsp
<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
<%
String path = request.getContextPath();
String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
%>
<html>
<head>
<script src="js/jquery/jquery.js"></script>
<script>
function rest1(){
$.ajax({
type: 'POST',
url: 'http://localhost:8080/RestDemo/webapi/users',
dataType: "json",
contentType: "application/json",
data: "{\"userId\":\"004\", \"userName\":\"Susan\", \"age\":\"33\"}",
cache : false,
error:function(){alert('系统连接失败，请稍后再试！')},
success: function(obj){
alert(obj.userName);
}
});
}
</script>
<script>
function rest2(){
$.ajax({
type: 'POST',
url: 'http://localhost:8080/RestDemo/webapi/users/user',
dataType: "json",
contentType: "application/x-www-form-urlencoded",
// data: "{\"userId\":\"004\", \"userName\":\"Susan\", \"age\":\"33\"}",
data: {
"user": "{\"userId\":\"004\", \"userName\":\"Susan\", \"age\":\"33\"}"
},
cache : false,
error:function(){alert('系统连接失败，请稍后再试！')},
success: function(obj){
alert(obj.userName);
}
});
}
</script>
<script>
function rest3(){
$.ajax({
type: 'POST',
url: 'http://localhost:8080/RestDemo/webapi/users/delete/001',
dataType: "json",
contentType: "application/json",
// data: "{\"userId\":\"004\", \"userName\":\"Susan\", \"age\":\"33\"}",
cache : false,
error:function(){alert('系统连接失败，请稍后再试！')},
success: function(obj){
alert(obj.userName);
}
});
}
</script>
</head>
<body>
<h2>Jersey RESTful Web Application!</h2>
<p><a href="webapi/myresource">Jersey resource</a>
<p>Visit <a href="http://jersey.java.net">Project Jersey website</a>
for more information on Jersey!
<input type="button" onclick="rest1();" value="sss">
<input type="button" onclick="rest2();" value="aaa">
<input type="button" onclick="rest3();" value="ddd">
</body>
</html>
java
package org.nercita.zmx;
import javax.xml.bind.annotation.XmlRootElement;
@XmlRootElement
public class User {
private String userId;
private String userName;
private String age;
public User() {};
public User(String userId, String userName, String age) {
this.userId = userId;
this.userName = userName;
this.age = age;
}
public String getUserId() {
return userId;
}
public void setUserId(String userId) {
this.userId = userId;
}
public String getUserName() {
return userName;
}
public void setUserName(String userName) {
this.userName = userName;
}
public String getAge() {
return age;
}
public void setAge(String age) {
this.age = age;
}
}
package org.nercita.zmx;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import javax.ws.rs.Consumes;
import javax.ws.rs.DELETE;
import javax.ws.rs.FormParam;
import javax.ws.rs.GET;
import javax.ws.rs.POST;
import javax.ws.rs.PUT;
import javax.ws.rs.Path;
import javax.ws.rs.PathParam;
import javax.ws.rs.Produces;
import javax.ws.rs.core.MediaType;
@Path("/users")
public class UserResource {
private static Map<String,User> userMap = new HashMap<String,User>();//存储用户
/**
* 查询所有
* @return
*/
@GET
@Produces(MediaType.APPLICATION_XML)
public List<User> getAllUsers(){
List<User> users = new ArrayList<User>();
User u1 = new User("001","WayLau","26");
User u2 = new User("002","King","23");
User u3 = new User("003","Susan","21");
userMap.put(u1.getUserId(), u1);
userMap.put(u2.getUserId(), u2);
userMap.put(u3.getUserId(), u3);
users.addAll( userMap.values() );
return users;
}
@GET
@Path("/getUserXml")
@Produces(MediaType.APPLICATION_XML)
public User getUserXml() {
User user = new User();
user.setAge("21");
user.setUserId("004");
user.setUserName("Amand");
return user;
}
@GET
@Path("/getUserJson")
@Produces(MediaType.APPLICATION_JSON)
public User getUserJson() {
User user = new User();
user.setAge("27");
user.setUserId("005");
user.setUserName("Fmand");
return user;
}
/**
* 增加
* @param user
*/
@POST
@Consumes({MediaType.APPLICATION_XML, MediaType.APPLICATION_JSON})
@Produces(MediaType.APPLICATION_JSON)
public User createStudent(User user)
{
userMap.put(user.getUserId(), user );
return user;
}
/**
* 增加
* @param user
*/
@POST
@Path("/user")
public User addStudent(@FormParam("j") String j)
{
System.out.println(j);
User user = new User();
user.setAge("27");
user.setUserId("005");
user.setUserName("Fmand");
return user;
}
/**
* 删除
* @param user
*/
@POST
@Path("/delete/{id}")
@Produces(MediaType.APPLICATION_JSON)
@Consumes({MediaType.APPLICATION_XML, MediaType.APPLICATION_JSON})
public User delStudent(@PathParam("id")String id)
{
System.out.println(id);
User user = new User();
user.setAge("27");
user.setUserId("005");
user.setUserName("Fmand");
return user;
}
/**
* 删除
* @param id
*/
@DELETE
@Path("{id}")
public void deleteStudent(@PathParam("id")String id){
userMap.remove(id);
}
/**
* 修改
* @param user
*/
@PUT
@Consumes(MediaType.APPLICATION_XML)
public void updateStudent(User user){
userMap.put(user.getUserId(), user );
}
/**
* 根据id查询
* @param id
* @return
*/
@GET
@Path("{id}")
@Produces({MediaType.APPLICATION_XML, MediaType.APPLICATION_JSON})
public User getUserById(@PathParam("id") String id){
User u = userMap.get(id);
return u;
}
}
package org.nercita.zmx;
import org.codehaus.jackson.jaxrs.JacksonJsonProvider;
import org.glassfish.jersey.server.ResourceConfig;
public class RestApplication extends ResourceConfig {
public RestApplication() {
//服务类所在的包路径
packages("org.nercita.zmx");
//注册JSON转换器
register(JacksonJsonProvider.class);
}
}
web.xml
<?xml version="1.0" encoding="UTF-8"?>
<!-- This web.xml file is not required when using Servlet 3.0 container,
see implementation details http://jersey.java.net/nonav/documentation/latest/jax-rs.html -->
<web-app version="2.5" xmlns="http://java.sun.com/xml/ns/javaee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd">
<servlet>
<servlet-name>Jersey Web Application</servlet-name>
<servlet-class>org.glassfish.jersey.servlet.ServletContainer</servlet-class>
<!-- <init-param>
<param-name>jersey.config.server.provider.packages</param-name>
<param-value>org.nercita.zmx</param-value>
</init-param> -->
<init-param>
<param-name>javax.ws.rs.Application</param-name>
<param-value>org.nercita.zmx.RestApplication</param-value>
</init-param>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>Jersey Web Application</servlet-name>
<url-pattern>/webapi/*</url-pattern>
</servlet-mapping>
</web-app>
pom.xml
<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/maven-v4_0_0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>org.nercita.ltxx</groupId>
<artifactId>RestDemo</artifactId>
<packaging>war</packaging>
<version>0.0.1-SNAPSHOT</version>
<name>RestDemo</name>
<build>
<finalName>RestDemo</finalName>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<version>2.5.1</version>
<inherited>true</inherited>
<configuration>
<source>1.7</source>
<target>1.7</target>
</configuration>
</plugin>
</plugins>
</build>
<dependencyManagement>
<dependencies>
<dependency>
<groupId>org.glassfish.jersey</groupId>
<artifactId>jersey-bom</artifactId>
<version>${jersey.version}</version>
<type>pom</type>
<scope>import</scope>
</dependency>
</dependencies>
</dependencyManagement>
<dependencies>
<dependency>
<groupId>org.glassfish.jersey.containers</groupId>
<artifactId>jersey-container-servlet-core</artifactId>
<!-- use the following artifactId if you don't need servlet 2.x compatibility -->
<!-- artifactId>jersey-container-servlet</artifactId -->
</dependency>
<!-- uncomment this to get JSON support
<dependency>
<groupId>org.glassfish.jersey.media</groupId>
<artifactId>jersey-media-moxy</artifactId>
</dependency>
-->
<!--Jackson Json支持 -->
<dependency>
<groupId>org.codehaus.jackson</groupId>
<artifactId>jackson-core-asl</artifactId>
<version>1.9.12</version>
</dependency>
<dependency>
<groupId>org.codehaus.jackson</groupId>
<artifactId>jackson-mapper-asl</artifactId>
<version>1.9.12</version>
</dependency>
<dependency>
<groupId>org.codehaus.jackson</groupId>
<artifactId>jackson-jaxrs</artifactId>
<version>1.9.12</version>
</dependency>
</dependencies>
<properties>
<jersey.version>2.22.2</jersey.version>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
</properties>
</project>