Jersey Restful搭建 及问题

Jersey   Restful

一直报java.lang.ClassNotFoundException: com.sun.jersey.spi.container.servlet.ServletContainer

问题原因 项目启动之后 Deployment Assembly 没有加载到 jar包

因为用的是maven， Deployment Assembly默认加载的webContent的lib中不存在jar所以加载不到

解决方法只要在Deployment Assembly中添加maven dependencies

所依赖的jar 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/xsd/maven-4.0.0.xsd">

     <modelVersion>4.0.0</modelVersion>

     <groupId>RestDemo</groupId>

     <artifactId>RestDemo</artifactId>

     <version>0.0.1-SNAPSHOT</version>

     <properties>

           <java.version>1.7</java.version>

     </properties>

     <dependencies>

           <!-- https://mvnrepository.com/artifact/javax.ws.rs/jsr311-api -->

           <dependency>

                <groupId>javax.ws.rs</groupId>

                <artifactId>jsr311-api</artifactId>

                <version>1.1.1</version>

           </dependency>

           <!-- https://mvnrepository.com/artifact/com.sun.jersey/jersey-servlet -->

           <dependency>

                <groupId>com.sun.jersey</groupId>

                <artifactId>jersey-servlet</artifactId>

                <version>1.17.1</version>

           </dependency>

           <!-- https://mvnrepository.com/artifact/com.sun.jersey/jersey-bundle -->

           <dependency>

                <groupId>com.sun.jersey</groupId>

                <artifactId>jersey-bundle</artifactId>

                <version>1.17.1</version>

           </dependency>

           <!-- https://mvnrepository.com/artifact/net.sf.json-lib/json-lib -->

           <dependency>

                <groupId>net.sf.json-lib</groupId>

                <artifactId>json-lib</artifactId>

                <version>2.2.3</version>

           </dependency>

           <!-- https://mvnrepository.com/artifact/com.sun.jersey/jersey-server -->

           <dependency>

                <groupId>com.sun.jersey</groupId>

                <artifactId>jersey-server</artifactId>

                <version>1.17.1</version>

           </dependency>

           <!-- https://mvnrepository.com/artifact/com.sun.jersey/jersey-core -->

           <dependency>

                <groupId>com.sun.jersey</groupId>

                <artifactId>jersey-core</artifactId>

                <version>1.17.1</version>

           </dependency>

           <dependency>

                <groupId>org.ow2.asm</groupId>

                <artifactId>asm</artifactId>

                <version>4.0</version>

           </dependency>

           <dependency>

                <groupId>com.sun.jersey</groupId>

                <artifactId>jersey-client</artifactId>

                <version>1.17.1</version>

           </dependency>

     </dependencies>

</project>

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>RESTfulWS</display-name>

  <servlet>

    <servlet-name>Jersey REST Service</servlet-name>

    <servlet-class>com.sun.jersey.spi.container.servlet.ServletContainer</servlet-class>

    <init-param>

      <param-name>com.sun.jersey.config.property.packages</param-name>

      <param-value>com.controller</param-value>

    </init-param>

    <load-on-startup>1</load-on-startup>

  </servlet>

  <servlet-mapping>

    <servlet-name>Jersey REST Service</servlet-name>

    <url-pattern>/rest/*</url-pattern>

  </servlet-mapping>

</web-app>

测试类

package com.controller;

import java.util.HashMap;

import javax.ws.rs.GET;

import javax.ws.rs.Path;

import javax.ws.rs.PathParam;

import javax.ws.rs.Produces;

import javax.ws.rs.core.MediaType;

import net.sf.json.JSONObject;

@Path("user")

public class UserInfo {

    @GET

    @Path("/name/{i}")

    @Produces(MediaType.TEXT_XML)

    public String userName(@PathParam("i") String i) {

        String name = i;

        return "<User>" + "<Name>" + name + "</Name>" + "</User>";

    }

    @GET

    @Path("/age/{j}")

    @Produces(MediaType.TEXT_XML)

    public String userAge(@PathParam("j") int j) {

        int age = j;

        return "<User>" + "<Age>" + age + "</Age>" + "</User>";

    }

    @GET

    @Path("/v2")

    public  String getMessage() {

        JSONObject jsonobj=new JSONObject();

        String msg = "You get this message that is to say the restful is running smoothly!";

        jsonobj.put("code", 200);

        jsonobj.put("msg", msg);

        return jsonobj.toString();

    }

}

测试结果：