本文演示环境为eclipse + Maven插件 + Jersey framework。本文只关注Jersey的使用，所以只使用类中定义的静态数据做演示。请在使用时修改我的代码。如果你的eclipse中没有安装Maven插件，请关注我的博客，我马上就会推出Maven+eclipse的开发教程。

1. 在eclipse中创建Maven项目

2.单击"Next"

3. 选择Maven项目类型为"maven-archetype-webapp"

4. 输入项目相关的Maven设置

5. 分别创建src/main下java文件夹以及src下test文件夹

6. 设置src/main/java和src/test/java为source folder

7. 最终设置结果如下：

8. 修改pom.xml,添加Maven相应依赖库

4.0.0net.jianxi.tutorials.jerseywsjerseywstestwar1.0jerseywstest Maven Webapphttp://maven.apache.orgjunitjunit4.7testcom.sun.jerseyjersey-core1.3com.sun.jerseyjersey-server1.3com.sun.jerseyjersey-client1.3log4jlog4j1.2.14javax.ws.rsjsr311-api1.1.1asmasm3.2jerseywstestmaven-compiler-plugin1.61.6org.codehaus.mojotomcat-maven-plugintarget/jerseywstest.war

9. 添加基本POJO类Student:

1 packagenet.jianxi.tutorials.jerseyws.metadata;2 3 importjavax.xml.bind.annotation.XmlRootElement;4 5 @XmlRootElement6 publicclassStudent {7 privateintid;8 privateString name;9 privateString dept;10 11 publicintgetId() {12 returnid;13 }14 15 publicStudent() {16 }17 18 publicStudent(intid, String name, String dept) {19 super();20 this.id=id;21 this.name=name;22 this.dept=dept;23 }24 publicvoidsetId(intid) {25 this.id=id;26 }27 publicString getName() {28 returnname;29 }30 publicvoidsetName(String name) {31 this.name=name;32 }33 publicString getDept() {34 returndept;35 }36 publicvoidsetDept(String dept) {37 this.dept=dept;38 }39 40 }41

10. 添加一个REST web服务实现类RestWsDemo:

1 packagenet.jianxi.tutorials.jerseyws;2 3 importjava.util.ArrayList;4 importjava.util.HashMap;5 importjava.util.List;6 importjava.util.Map;7 8 importjavax.ws.rs.DELETE;9 importjavax.ws.rs.FormParam;10 importjavax.ws.rs.GET;11 importjavax.ws.rs.POST;12 importjavax.ws.rs.PUT;13 importjavax.ws.rs.Path;14 importjavax.ws.rs.PathParam;15 importjavax.ws.rs.Produces;16 importjavax.ws.rs.QueryParam;17 importjavax.ws.rs.core.MediaType;18 19 importnet.jianxi.tutorials.jerseyws.metadata.Student;20 21 importorg.apache.log4j.Logger;22 23 24 @Path("/students")25 publicclassRestWsDemo {26 privatestaticLogger logger=Logger.getLogger(RestWsDemo.class);27 privatestaticintindex=1;28 privatestaticMapstudentList=newHashMap();29 30 publicRestWsDemo() {31 if(studentList.size()==0) {32 studentList.put(index,newStudent(index++,"Frank","CS"));33 studentList.put(index,newStudent(index++,"Jersey","Math"));34 }35 }36 37 @GET38 @Path("{studentid}")39 @Produces({MediaType.APPLICATION_XML, MediaType.APPLICATION_JSON})40 publicStudent getMetadata(@PathParam("studentid")intstudentid) {41 if(studentList.containsKey(studentid))42 returnstudentList.get(studentid);43 else44 returnnewStudent(0,"Nil","Nil");45 }46 47 @GET48 @Path("list")49 @Produces({MediaType.APPLICATION_XML, MediaType.APPLICATION_JSON})50 publicListgetAllStudents() {51 Liststudents=newArrayList();52 students.addAll(studentList.values());53 returnstudents;54 }55 56 @POST57 @Path("add")58 @Produces("text/plain")59 publicString addStudent(@FormParam("name") String name,60 @FormParam("dept") String dept) {61 studentList.put(index,newStudent(index++, name, dept));62 returnString.valueOf(index-1);63 }64 65 @DELETE66 @Path("delete/{studentid}")67 @Produces("text/plain")68 publicString removeStudent(@PathParam("studentid")intstudentid) {69 logger.info("Receieving quest for deleting student:"+studentid);70 71 Student removed=studentList.remove(studentid);72 if(removed==null)return"failed!";73 elsereturn"true";74 }75 76 @PUT77 @Path("put")78 @Produces("text/plain")79 publicString putStudent(@QueryParam("studentid")intstudentid,80 @QueryParam("name") String name,81 @QueryParam("dept") String dept82 ) {83 logger.info("Receieving quest for putting student:"+studentid);84 if(!studentList.containsKey(studentid))85 return"failed!";86 else87 studentList.put(studentid,newStudent(studentid, name, dept));88 89 returnString.valueOf(studentid);90 }91 }92

11. 修改src/main/webapp/WEB-INF/web.xml文件如下：

/p>

"-//Sun Microsystems, Inc.//DTD Web Application 2.3//EN"

"http://java.sun.com/dtd/web-app_2_3.dtd">Archetype Created Web Applicationjerseywscom.sun.jersey.spi.container.servlet.ServletContainercom.sun.jersey.config.property.resourceConfigClasscom.sun.jersey.api.core.PackagesResourceConfigcom.sun.jersey.config.property.packagesnet.jianxi.tutorials.jerseyws1jerseyws/rest/*

12. 运行Maven package任务，构建war文件，部署war应用到你的Web服务器。

13. 测试

我马上就会推出如何用SoapUI工具测试Jersey Web服务的教程。这里这介绍简单的测试方法。

13.1) 对于GET，可以直接通过浏览器进行测试，在浏览器中直接输入：http://localhost:8080/jerseywstest/rest/students/list， 你应该看到返回的XML数据：

CS1FrankMath2Jersey

输入：http://localhost:8080/jerseywstest/rest/students/1则会返回一个学生的信息。

13.2) 测试POST方法。

添加一个testpost.htm文件

Insert title here

提交后你在用list方法就可以看到数据的变化。

13.3) PUT和DELETE方法的测试

添加一个Junit测试类

1 packagenet.jianxi.tutorials.jerseyws;2 3 4 importjavax.ws.rs.core.MultivaluedMap;5 6 importorg.junit.Before;7 importorg.junit.BeforeClass;8 importorg.junit.Test;9 10 importcom.sun.jersey.api.client.Client;11 importcom.sun.jersey.api.client.ClientResponse;12 importcom.sun.jersey.api.client.WebResource;13 importcom.sun.jersey.core.util.MultivaluedMapImpl;14 15 publicclassRestWsDemoTest {16 privateString url="http://localhost:8080/jerseywstest/rest/students";17 18 @Test19 publicvoidtestDelete() {20 Client client=Client.create();21 WebResource webResource=client.resource(url+"/delete/1");22 ClientResponse response=webResource.delete(ClientResponse.class);23 24 System.out.println("Response for delete request:"+response.getStatus());25 }26 27 @Test28 publicvoidtestPut() {29 Client client=Client.create();30 WebResource webResource=client.resource(url+"/put");31 MultivaluedMap queryParams=newMultivaluedMapImpl();32 queryParams.add("studentid","2");33 queryParams.add("name","nametest");34 queryParams.add("dept","depttest");35 ClientResponse response=webResource.queryParams(queryParams).put(ClientResponse.class,"foo:test");36 System.out.println("Response for put request:"+response.getStatus());37 }38 }39