Jersey实现Restful webservice及Ajax访问

来源：互联网发布：环球天下期货软件编辑：程序博客网时间：2024/06/11 22:21

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;@XmlRootElementpublic 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>

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