用Jersey构建RESTful服务1--HelloWorld

来源:互联网 发布:矩阵奇艺是什么意思 编辑:程序博客网 时间:2024/04/30 05:09
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”


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;


项目引入jar包


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
 <servlet>       <servlet-name>Way REST Service</servlet-name> <servlet-class>org.glassfish.jersey.servlet.ServletContainer</servlet-class>       <init-param>  <param-name>jersey.config.server.provider.packages</param-name>      <param-value>com.waylau.rest.resources</param-value>      </init-param>    <load-on-startup>1</load-on-startup>  </servlet>    <servlet-mapping>    <servlet-name>Way REST Service</servlet-name>    <url-pattern>/rest/*</url-pattern>  </servlet-mapping>




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


输出Hello World!




http://localhost:8089/RestDemo/rest/hello/Way你好吗


输出Hello Way你好吗

 

参考:https://jersey.java.net/documentation/latest/user-guide.html
3 0
原创粉丝点击