1–HelloWorld

最后更新于:2022-04-01 20:01:22

## 一、环境 1、Eclipse Juno R2 2. Tomcat 7 3. Jersey 2.7  下载地址( https://jersey.java.net/download.html) ## 二、流程 1.Eclipse 中创建一个 Dynamic Web Project ,本例为“RestDemo” 2.按个各人习惯建好包,本例为“com.waylau.rest.resources” ![](https://docs.gechiui.com/gc-content/uploads/sites/kancloud/2016-02-24_56cd25fc52599.png) 3.解压jaxrs-ri-2.7, 将api、ext、lib文件夹下的jar包都放到项目的lib下; ![](https://docs.gechiui.com/gc-content/uploads/sites/kancloud/2016-02-24_56cd25fc7154b.png) 项目引入jar包 ![](https://docs.gechiui.com/gc-content/uploads/sites/kancloud/2016-02-24_56cd25fc87090.png) 4.在resources包下建一个class“HelloResource” ~~~ package com.waylau.rest.resources; import javax.ws.rs.GET; import javax.ws.rs.Path; import javax.ws.rs.Produces; import javax.ws.rs.PathParam; import javax.ws.rs.core.MediaType; @Path("/hello") public class HelloResource { @GET @Produces(MediaType.TEXT_PLAIN) public String sayHello() { return "Hello World!" ; } @GET @Path("/{param}") @Produces("text/plain;charset=UTF-8") public String sayHelloToUTF8(@PathParam("param") String username) { return "Hello " + username; } } ~~~ 5.修改web.xml,添加基于Servlet-的部署 ~~~ Way REST Service org.glassfish.jersey.servlet.ServletContainer jersey.config.server.provider.packages com.waylau.rest.resources 1 Way REST Service /rest/* ~~~ 6.项目部署到tomcat,运行 7.浏览器输入要访问的uri地址 [http://localhost:8089/RestDemo/rest/hello](http://localhost:8089/RestDemo/rest/hello) 输出Hello World! ![](https://docs.gechiui.com/gc-content/uploads/sites/kancloud/2016-02-24_56cd25fca41e0.png) [http://localhost:8089/RestDemo/rest/hello/Way你好吗](http://localhost:8089/RestDemo/rest/hello/Way你好吗) 输出Hello Way你好吗 ![](https://docs.gechiui.com/gc-content/uploads/sites/kancloud/2016-02-24_56cd25fcbd7ac.png) 参考:https://jersey.java.net/documentation/latest/user-guide.html
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