SpringMvc json mapping

利用SpringMvc和jackson-databind来实现请求和响应的json mapping

新建一个maven web工程，工程结构如下，工程模拟一个简单的用户资料获取服务，请求和响应都是基于json来做

web.xml设置

<!DOCTYPE web-app PUBLIC
 "-//Sun Microsystems, Inc.//DTD Web Application 2.3//EN"
 "http://java.sun.com/dtd/web-app_2_3.dtd" >

<web-app>
	<display-name>Archetype Created Web Application</display-name>
	<servlet>
		<servlet-name>springmvc</servlet-name>
		<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
		<init-param>
			<param-name>contextConfigLocation</param-name>
			<param-value>classpath:com/lzw/mapping/mapping-servlet.xml</param-value>
		</init-param>
		<load-on-startup>1</load-on-startup>
	</servlet>

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

mapping-servlet.xml

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
       xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
       xmlns:mvc="http://www.springframework.org/schema/mvc"
       xmlns:p="http://www.springframework.org/schema/p"
       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
            http://www.springframework.org/schema/mvc
            http://www.springframework.org/schema/mvc/spring-mvc-3.0.xsd
            http://www.springframework.org/schema/context
            http://www.springframework.org/schema/context/spring-context-3.0.xsd">

    <context:component-scan base-package="com.lzw.mapping.service"/>
   	<mvc:annotation-driven/>

</beans>

Pom文件

<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
	xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
	<modelVersion>4.0.0</modelVersion>
	<groupId>com.lzw</groupId>
	<artifactId>json-mapping</artifactId>
	<packaging>war</packaging>
	<version>0.0.1-SNAPSHOT</version>
	<name>json-mapping Maven Webapp</name>
	<url>http://maven.apache.org</url>

	<dependencies>
		<dependency>
			<groupId>org.springframework</groupId>
			<artifactId>spring-webmvc</artifactId>
			<version>3.2.10.RELEASE</version>
		</dependency>
		<dependency>
			<groupId>com.fasterxml.jackson.core</groupId>
			<artifactId>jackson-databind</artifactId>
			<version>2.3.3</version>
		</dependency>
		<dependency>
			<groupId>junit</groupId>
			<artifactId>junit</artifactId>
			<version>4.11</version>
			<scope>test</scope>
		</dependency>
	</dependencies>

	<build>
		<finalName>json-mapping</finalName>
		<plugins>
			<plugin>
				<groupId>org.mortbay.jetty</groupId>
				<artifactId>jetty-maven-plugin</artifactId>
				<version>7.1.6.v20100715</version>
				<configuration>
					<scanIntervalSeconds>2</scanIntervalSeconds>
					<webAppConfig>
						<contextPath>/</contextPath>
						<defaultsDescriptor>${project.basedir}/src/main/resources/webdefault.xml</defaultsDescriptor>
					</webAppConfig>
				</configuration>
			</plugin>
		</plugins>
	</build>
</project>

com.lzw.mapping.beans 下放置的是用户的领域模型，CustomerBasicInfo是请求的模型，Customer是响应的模型

package com.lzw.mapping.beans;

public class Customer {
	private String id;
	private String name;
	private String address;
	private String gender;
	private String phone;
	...省略getter和setter
}

package com.lzw.mapping.beans;

public class CustomerBasicInfo {
	private String id;
	private String name;
	...省略getter和setter
}

com.lzw.mapping.service 下放置的是服务的接口和实现

CustomerInfoService

package com.lzw.mapping.service;

import com.lzw.mapping.beans.Customer;
import com.lzw.mapping.beans.CustomerBasicInfo;

public interface CustomerInfoService {
	public Customer getCustomer(CustomerBasicInfo customerInfo);
}

CustomerInfoServiceImpl

package com.lzw.mapping.service.impl;

import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestBody;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.ResponseBody;

import com.lzw.mapping.beans.Customer;
import com.lzw.mapping.beans.CustomerBasicInfo;
import com.lzw.mapping.service.CustomerInfoService;

@Controller
@RequestMapping(value="/customerservice")
public class CustomerInfoServiceImpl implements CustomerInfoService {

	@RequestMapping(value="/getcustom",method=RequestMethod.POST)
	@ResponseBody
	public Customer getCustomer(@RequestBody CustomerBasicInfo customerInfo) {
		System.out.println("Customer query info:" + "id:" + customerInfo.getId() + " name:" + customerInfo.getName());
		Customer customer = new Customer();
		customer.setId(customerInfo.getId());
		customer.setGender("male");
		customer.setName("lzw");
		customer.setPhone("88888888");
		customer.setAddress("GZ");
		return customer;
	}

}

通过httprequester来验证请求

可以看到请求和结果都实现了json和pojo的mapping

代码下载