专栏首页NetkillerSpring RestFul Example (实例参考)

Spring RestFul Example (实例参考)

以下节选择《Netkiller Java 手札》

11.8. Spring4 Restful

@RestController

首先我要禁告各位,Spring发展过程中,每个版本都有一定差异。如果你做实验失败后在网上搜索答案,切记看一下版本号还有文章帖子的发布时间。否则你可能按照Spring3配置方法去Spring4。

@RestController 默认返回 @ResponseBody, 所以@ResponseBody可加可不加

11.8.1. pom.xml

Maven 增加 jackson 开发包

		<dependency>
			<groupId>com.fasterxml.jackson.dataformat</groupId>
			<artifactId>jackson-dataformat-xml</artifactId>
		</dependency>
		<dependency>
			<groupId>com.fasterxml.jackson.core</groupId>
			<artifactId>jackson-core</artifactId>
		</dependency>
		<dependency>
			<groupId>com.fasterxml.jackson.core</groupId>
			<artifactId>jackson-databind</artifactId>
		</dependency>
		<dependency>
			<groupId>com.fasterxml.jackson.core</groupId>
			<artifactId>jackson-annotations</artifactId>
		</dependency>		

11.8.2. web.xml

url-pattern匹配中增加*.xml跟*.json

	<servlet>
        <servlet-name>springframework</servlet-name>
        <servlet-class>
            org.springframework.web.servlet.DispatcherServlet
        </servlet-class>
        <load-on-startup>1</load-on-startup>
    </servlet>
   
    <servlet-mapping>
        <servlet-name>springframework</servlet-name>
        <url-pattern>/welcome.jsp</url-pattern>
        <url-pattern>/welcome.html</url-pattern>
        <url-pattern>*.json</url-pattern>
        <url-pattern>*.xml</url-pattern>
        <url-pattern>*.html</url-pattern>
    </servlet-mapping>		

11.8.3. springframework.xml

		<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans" xmlns:mvc="http://www.springframework.org/schema/mvc" xmlns:context="http://www.springframework.org/schema/context" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:p="http://www.springframework.org/schema/p" xmlns:mongo="http://www.springframework.org/schema/data/mongo" xmlns:tx="http://www.springframework.org/schema/tx"
	xsi:schemaLocation="
        http://www.springframework.org/schema/beans     
        http://www.springframework.org/schema/beans/spring-beans.xsd
        http://www.springframework.org/schema/mvc 
        http://www.springframework.org/schema/mvc/spring-mvc.xsd
        http://www.springframework.org/schema/context 
        http://www.springframework.org/schema/context/spring-context.xsd
http://www.springframework.org/schema/data/mongo
http://www.springframework.org/schema/data/mongo/spring-mongo-1.5.xsd        
        ">

	<mvc:resources location="/images/" mapping="/images/**" />
	<mvc:resources location="/css/" mapping="/css/**" />
	<mvc:resources location="/js/" mapping="/js/**" />
	<mvc:resources location="/zt/" mapping="/zt/**" />
	<mvc:resources location="/sm/" mapping="/sm/**" />
	<mvc:resources location="/module/" mapping="/module/**" />

	<context:component-scan base-package="cn.netkiller.controller">

	</context:component-scan>
	<context:annotation-config />
	<mvc:annotation-driven />

	<bean id="viewResolver" class="org.springframework.web.servlet.view.UrlBasedViewResolver">
		<property name="viewClass" value="org.springframework.web.servlet.view.JstlView" />
		<property name="prefix" value="/WEB-INF/jsp/" />
		<property name="suffix" value=".jsp" />
	</bean>


	<bean id="configuracion" class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer">
		<property name="location" value="classpath:resources/development.properties" />
	</bean>

	<!-- Redis Connection Factory -->
	<bean id="jedisConnFactory" class="org.springframework.data.redis.connection.jedis.JedisConnectionFactory" p:host-name="192.168.2.1" p:port="6379" p:use-pool="true" />

	<!-- redis template definition -->
	<bean id="redisTemplate" class="org.springframework.data.redis.core.RedisTemplate" p:connection-factory-ref="jedisConnFactory" />

	<mongo:db-factory id="mongoDbFactory" host="${mongo.host}" port="${mongo.port}" dbname="${mongo.database}" />
	<!-- username="${mongo.username}" password="${mongo.password}" -->

	<bean id="mongoTemplate" class="org.springframework.data.mongodb.core.MongoTemplate">
		<constructor-arg name="mongoDbFactory" ref="mongoDbFactory" />
	</bean>

	<mongo:mapping-converter id="converter" db-factory-ref="mongoDbFactory" />
	<bean id="gridFsTemplate" class="org.springframework.data.mongodb.gridfs.GridFsTemplate">
		<constructor-arg ref="mongoDbFactory" />
		<constructor-arg ref="converter" />
	</bean>

</beans>		

11.8.4. RestController

		package cn.netkiller.controller;

import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.RequestHeader;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.ResponseStatus;
import org.springframework.web.bind.annotation.RestController;
import org.springframework.http.HttpStatus;
import org.springframework.http.ResponseEntity;
import org.springframework.web.bind.annotation.ResponseBody;

import cn.netkiller.pojo.Message;

@RestController
@RequestMapping("/rest")
public class TestRestController {

	public TrackerRestController() {
		// TODO Auto-generated constructor stub
	}

	@RequestMapping("welcome")
	@ResponseStatus(HttpStatus.OK)
	public String welcome() {
		return "Welcome to RestTemplate Example.";
	}

	@RequestMapping(value = "test", method = RequestMethod.GET, produces = { "application/xml", "application/json" })
	@ResponseStatus(HttpStatus.OK)
	public @ResponseBody Message test(@RequestHeader(value = "accept") String accept) {
		Message message = new Message();
		message.setTitle("test");
		message.setText("Helloworld!!!");
		System.out.println("accept: " + accept);
		System.out.println(message.toString());
		return message;
	}

	@RequestMapping("message/{name}")
	public ResponseEntity<Message> message(@PathVariable String name) {
		Message msg = new Message();
		msg.setTitle(name);
		return new ResponseEntity<Message>(msg, HttpStatus.OK);
	}
	
	@RequestMapping(value = "create", method = RequestMethod.POST, produces = { "application/xml", "application/json" })
	public ResponseEntity<Tracker> create(@RequestBody Tracker tracker) {
		this.mongoTemplate.insert(tracker);
		return new ResponseEntity<Tracker>(tracker, HttpStatus.OK);
	}
}		

11.8.5. POJO

		package cn.netkiller.pojo;

import javax.xml.bind.annotation.XmlAttribute;
import javax.xml.bind.annotation.XmlElement;
import javax.xml.bind.annotation.XmlRootElement;

@XmlRootElement
public class Message {
	
	String title;
    String text;
    
	public Message() {
		// TODO Auto-generated constructor stub
	}
	
	//@XmlElement
	@XmlAttribute  
	public String getTitle() {
		return title;
	}
	public void setTitle(String title) {
		this.title = title;
	}
	
	//@XmlElement
	@XmlAttribute
	public String getText() {
		return text;
	}
	public void setText(String text) {
		this.text = text;
	}
	@Override
	public String toString() {
		return "Message [title=" + title + ", text=" + text + "]";
	}

}		

11.8.6. 测试

		neo@netkiller:~/www.netkiller.cn$ curl http://172.16.0.1:8080/spring4/rest/welcome.html
Welcome to RestTemplate Example.

neo@netkiller:~/www.netkiller.cn$ curl http://172.16.0.1:8080/spring4/rest/test.json
{"title":"test","text":"Helloworld!!!"}

neo@netkiller:~/www.netkiller.cn$ curl http://172.16.0.1:8080/spring4/rest/test.xml
<Message xmlns=""><title>test</title><text>Helloworld!!!</text></Message>	

neo@netkiller:~/www.netkiller.cn$ curl -i -H "Accept: application/json" -H "Content-Type: application/json" -X POST -d '{"login":"neo", "unique":"356770257607079474","hostname":"www.example.com","referrer":"http://www.netkiller.cn","href":"http://www.netkiller.cn"}' http://172.16.0.1:8080/spring4/rest/create.json
HTTP/1.1 200 OK
Server: Apache-Coyote/1.1
Content-Type: application/json
Transfer-Encoding: chunked
Date: Tue, 21 Jun 2016 03:08:26 GMT

{"name":"neo","unique":"356770257607079474","hostname":"www.netkiller.cn","referrer":"http://www.netkiller.cn","href":"http://www.netkiller.cn"}	

本文分享自微信公众号 - Netkiller(netkiller-ebook),作者:景峯

原文出处及转载信息见文内详细说明,如有侵权,请联系 yunjia_community@tencent.com 删除。

原始发表时间:2016-06-21

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