Spring3.2でJsonを返すコントローラを作成。(servlet3.0でweb.xmlは使わなかったバージョン)

applicationContext.xml

<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:sec="http://www.springframework.org/schema/security" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:p="http://www.springframework.org/schema/p" xmlns:c="http://www.springframework.org/schema/c"
xmlns:context="http://www.springframework.org/schema/context" xmlns:oauth="http://www.springframework.org/schema/security/oauth2"
xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.2.xsd
  				http://www.springframework.org/schema/security http://www.springframework.org/schema/security/spring-security-3.2.xsd
					http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.2.xsd">
<context:component-scan base-package="jp.test"/>
</beans>

dispatcher-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:context="http://www.springframework.org/schema/context" 
	xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.2.xsd
						http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-3.2.xsd
						http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.2.xsd" >
	<mvc:annotation-driven />
	<context:component-scan base-package="jp.test.hoge.controller" />
</beans>

HogeController.java

package jp.test.hoge.controller;

import jp.test.hoge.model.HogeModel;

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

@Controller
public class HogeController {
  
	@RequestMapping("/hoge")
	public @ResponseBody HogeModel hoge() {
		return new HogeModel();
		
	}
	
}

HogeModel.java

package jp.test.hoge.model;

public class HogeModel {
  private int resultCode;

	public int getResultCode() {
		return resultCode;
	}

	public void setResultCode(int resultCode) {
		this.resultCode = resultCode;
	}
}

TestWebApplicationInitilizer.java

package jp.test.hoge.initializer;

import javax.servlet.ServletContext;
import javax.servlet.ServletException;
import javax.servlet.ServletRegistration;

import org.springframework.web.WebApplicationInitializer;
import org.springframework.web.context.ContextLoaderListener;
import org.springframework.web.servlet.DispatcherServlet;

public class TestWebApplicationInitilizer implements
  	WebApplicationInitializer {

	@Override
	public void onStartup(ServletContext container) throws ServletException {
		ServletRegistration.Dynamic registration = container.addServlet("testDispatcher", new DispatcherServlet());
		registration.setInitParameter("contextConfigLocation", "/WEB-INF/config/spring/dispatcher-servlet.xml");
		registration.setLoadOnStartup(1);
		registration.addMapping("/apitest/*");
		
		container.addListener(ContextLoaderListener.class);
		container.setInitParameter("contextConfigLocation", "/WEB-INF/config/spring/applicationContext.xml");
	}

}