spring整合restlet開發實踐

上次根據restlet官網搭建了一個restlet的demo。

但在實際應用更加復雜，有時需要和spring整合，這里介紹一下spring整合restlet

1、創建web工程，導入如下jar包

主要是restlet的spring的jar包，以及一些基礎jar包

 

2、修改web.xml

配置servlet為RestletFrameworkServlet，整合spring和restlet

<?xml version="1.0" encoding="UTF-8"?>
<web-app version="2.5"
         xmlns="http://java.sun.com/xml/ns/javaee"
         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:schemaLocation="http://java.sun.com/xml/ns/javaee
    http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd">

    <servlet>
        <servlet-name>restlet</servlet-name>
        <!--spring整合restlet -->
        <servlet-class>org.restlet.ext.spring.RestletFrameworkServlet</servlet-class>
        <init-param>
            <param-name>org.restlet.component</param-name>
            <!-- restlet-servlet.xml配置文件里有-->
            <param-value>restletComponent</param-value>
        </init-param>
        <load-on-startup>1</load-on-startup>
    </servlet>

    <servlet-mapping>
        <servlet-name>restlet</servlet-name>
        <url-pattern>/*</url-pattern>
    </servlet-mapping>
    <welcome-file-list>
        <welcome-file>index.jsp</welcome-file>
    </welcome-file-list>

</web-app>

 

3、創建resource代碼

創建resource代碼類，要繼承ServerResource，用@Get和@Post注解來標明處理get請求的方法：getQueryCar和post請求的方法PostQueryCar

get請求通過ServletHttpRequest獲取參數，post方法通過Representation和Form獲取請求參數。

package com.chen.rest;

import org.restlet.data.Form;
import org.restlet.representation.Representation;
import org.restlet.representation.StringRepresentation;
import org.restlet.resource.Get;
import org.restlet.resource.Post;
import org.restlet.resource.ServerResource;
import org.springframework.web.context.request.RequestContextHolder;
import org.springframework.web.context.request.ServletRequestAttributes;

import javax.servlet.http.HttpServletRequest;

/**
 * @author chenjie
 * @version 1.0
 * @since 2017-02-09
 */
public class QueryCar extends ServerResource
{

    /**
     * get請求
     * 通過HttpServletRequest獲取請求參數
     * */
    @Get("xml|json")
    public Representation getQueryCar()
    {
        HttpServletRequest httprequest = ((ServletRequestAttributes) RequestContextHolder
                .getRequestAttributes()).getRequest();
        String id = httprequest.getParameter("id");
        String name = httprequest.getParameter("name");
        System.out.println("id1="+id);
        System.out.println("name2="+name);
        Representation representation = new StringRepresentation("hello get");
        return     representation;

    }
    /**
     * post請求
     * 通過Representation來獲取請求參數
     * */
    @Post
    public Representation postQueryCar(Representation entity)
    {
        HttpServletRequest httprequest = ((ServletRequestAttributes) RequestContextHolder
                .getRequestAttributes()).getRequest();
        Form form = new Form(entity);
        String id = form.getValues("id");
        String name = form.getFirstValue("name");
        System.out.println("id2="+id);
        System.out.println("name2="+name);
        Representation representation = new StringRepresentation("hello post");
        return     representation;
    }

}

 

 

4、在web.xml下面創建restlet-servlet.xml

<?xml version="1.0"?>
<beans xmlns="http://www.springframework.org/schema/beans"
       xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:context="http://www.springframework.org/schema/context"
       xmlns:aop="http://www.springframework.org/schema/aop" xmlns:tx="http://www.springframework.org/schema/tx"
       xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.0.xsd
           http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.0.xsd
           http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-3.0.xsd
           http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-3.0.xsd">
    <!--默認配置 -->
    <bean id="restletComponent" class="org.restlet.ext.spring.SpringComponent">
        <property name="defaultTarget" ref="root" />
    </bean>
    <bean id="root" class="org.restlet.ext.spring.SpringRouter">
        <property name="attachments">
            <map>
                <!-- 請求配置到這里 -->
                <entry key="/query">
                    <bean class="org.restlet.ext.spring.SpringFinder">
                        <lookup-method name="create" bean="query" />
                    </bean>
                </entry>
            </map>
        </property>
    </bean>

    <!-- 配置bean，注入的話用property標簽-->
    <bean id="query" class="com.chen.rest.QueryCar" scope="prototype">

    </bean>

</beans>

 

5、部署服務，啟服務測試

發送get請求和post請求測試

http://localhost:8080/query?id=1&name=chen