Spring MVC JSON Response Data

Spring MVC JSON Response Data

Here you will see how to return JSON response in Spring MVC application.

• Project structure:

• pom.xml:

<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.javahonk</groupId>
	<artifactId>SpringMVCReturnJSON</artifactId>
	<packaging>war</packaging>
	<version>0.0.1-SNAPSHOT</version>
	<name>SpringMVCReturnJSON Maven Webapp</name>
	<url>http://maven.apache.org</url>
	<properties>
		<SpringVersion>4.0.6.RELEASE</SpringVersion>
		<jackson.version>1.9.10</jackson.version>
	</properties>

	<dependencies>
		<!-- Spring dependencies -->
		<dependency>
			<groupId>org.springframework</groupId>
			<artifactId>spring-core</artifactId>
			<version>${SpringVersion}</version>
		</dependency>

		<dependency>
			<groupId>org.springframework</groupId>
			<artifactId>spring-web</artifactId>
			<version>${SpringVersion}</version>
		</dependency>

		<dependency>
			<groupId>org.springframework</groupId>
			<artifactId>spring-webmvc</artifactId>
			<version>${SpringVersion}</version>
		</dependency>

		<!-- Jackson JSON Mapper -->
		<dependency>
			<groupId>org.codehaus.jackson</groupId>
			<artifactId>jackson-mapper-asl</artifactId>
			<version>${jackson.version}</version>
		</dependency>
	</dependencies>
	<build>
		<finalName>SpringMVCReturnJSON</finalName>
		<plugins>
			<plugin>
				<groupId>org.apache.maven.plugins</groupId>
				<artifactId>maven-compiler-plugin</artifactId>
				<version>3.0</version>
				<configuration>
					<source>1.6</source>
					<target>1.6</target>
				</configuration>
			</plugin>
		</plugins>
	</build>
</project>

•  Person.java

package com.javahonk.controller;

import javax.xml.bind.annotation.XmlAttribute;

public class Person {
	
	private String firstName;
	private String lastName;
	
	@XmlAttribute
	public String getFirstName() {
		return firstName;
	}
	public void setFirstName(String firstName) {
		this.firstName = firstName;
	}
	@XmlAttribute
	public String getLastName() {
		return lastName;
	}
	public void setLastName(String lastName) {
		this.lastName = lastName;
	}	
	
}

•  SpringMVCController.java

package com.javahonk.controller;

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

@Controller
public class SpringMVCController {
	
	@RequestMapping(value="/helloWorld.web",method = RequestMethod.GET)
	public String printWelcome(ModelMap model) {

		model.addAttribute("message", "Hello World!!!");
		return "helloWorld";

	}
	
	
	@RequestMapping(value="/springMVCReturnJSON.web", 
			method=RequestMethod.GET,
			produces={"application/json"})
    public @ResponseBody Person  getPerson() {		
		Person person = new Person();
		person.setFirstName("Java");
		person.setLastName("Honk");
		return person;
	}
}

•  Web page output:

For more information please refer this spring tutorial

  Download Project:  SpringMVCReturnJSON