javaEE REST 基于第三方框架Restlet

郭晨 软件151 1531610114

1、修改web.xml文件

添加URL模式（<url-pattern>）到Servlet的映射关系

设置Servlet的初始化参数（<init-param>），参数名（<param-name>）为org.restlet.application，参数值（<param-value>）为Application子类

示例：

<?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_3_0.xsd" id="WebApp_ID" version="3.0">
  <display-name>RESTServer</display-name>
  <servlet>
      <servlet-name>helloworld</servlet-name>
      <servlet-class>org.restlet.ext.servlet.ServerServlet</servlet-class>
      <init-param>
          <param-name>org.restlet.application</param-name>
          <param-value>com.example.HelloWorldApplication</param-value>
      </init-param>
  </servlet>

  <servlet-mapping>
      <servlet-name>helloworld</servlet-name>
      <url-pattern>/*</url-pattern>
  </servlet-mapping>
</web-app>

2、新建Application子类和ServerResource子类

< 新建Application子类

重写public Restlet createInboundRoot()方法，设置URL模式路由规则

示例：

import org.restlet.Application;
import org.restlet.Restlet;
import org.restlet.routing.Router;

public class HelloWorldApplication extends Application {

    @Override
    public Restlet createInboundRoot() {
        Router router = new Router(getContext());

        router.attach("/hi", HiResource.class);

        return router;
    }

}

< 新建ServerResource子类

新建public方法，标记@Get 等HTTP方法

示例：

package com.example;

import org.restlet.resource.Get;
import org.restlet.resource.ServerResource;

public class HiResource extends ServerResource {

    @Get
    public String getHi() {
        return "Hi!";
    }

}

运行