实际案例json

<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/xsd/maven-4.0.0.xsd">

    <modelVersion>4.0.</modelVersion>

    <groupId>csic</groupId>

    <artifactId>oa</artifactId>

    <version>0.0.-SNAPSHOT</version>

    <packaging>war</packaging>

    <name>oa</name>

    <url>http://maven.apache.org</url>

    <properties>

        <project.build.sourceEncoding>UTF-</project.build.sourceEncoding>

    </properties>

    <dependencyManagement>

        <dependencies>

            <dependency>

                <!-- Import dependency management from Spring Boot -->

                <groupId>org.springframework.boot</groupId>

                <artifactId>spring-boot-dependencies</artifactId>

                <version>2.1..RELEASE</version>

                <type>pom</type>

                <scope>import</scope>

            </dependency>

        </dependencies>

    </dependencyManagement>

    <dependencies>

        <dependency>

            <groupId>junit</groupId>

            <artifactId>junit</artifactId>

            <version>4.12</version>

            <scope>test</scope>

        </dependency>

        <dependency>

            <groupId>org.springframework.boot</groupId>

            <artifactId>spring-boot-starter-web</artifactId>

        </dependency>

        <dependency>

            <groupId>org.springframework.boot</groupId>

            <artifactId>spring-boot-devtools</artifactId>

        </dependency>

        <dependency>

            <groupId>org.springframework.boot</groupId>

            <artifactId>spring-boot-starter-freemarker</artifactId>

        </dependency>

    </dependencies>

    <build>

        <plugins>

            <plugin>

                <groupId>org.springframework.boot</groupId>

                <artifactId>spring-boot-maven-plugin</artifactId>

            </plugin>

        </plugins>

    </build>

</project>

package csic.oa.controller;

import java.util.HashMap;

import org.springframework.beans.factory.annotation.Autowired;

import org.springframework.stereotype.Controller;

import org.springframework.web.bind.annotation.PathVariable;

import org.springframework.web.bind.annotation.RequestMapping;

import org.springframework.web.bind.annotation.ResponseBody;

import org.springframework.web.bind.annotation.RestController;

import csic.oa.domain.Person;

import csic.oa.domain.Personxml;

import csic.oa.service.UserService;

//@RestController

@Controller

public class UserController {

    @ResponseBody

    @RequestMapping("person")

    public Person person(){

        Person p=new Person();

        p.setName("jt");

        p.setAge();

        return p;

    }

    @ResponseBody

    @RequestMapping("personxml")

    public Personxml personxml(){

        Personxml p=new Personxml();

        p.setName("jt");

        p.setAge();

        return p;

    }

}

package csic.oa.domain;

public class Person {

    private String name;

    private int age;

    public String getName() {

        return name;

    }

    public void setName(String name) {

        this.name = name;

    }

    public int getAge() {

        return age;

    }

    public void setAge(int age) {

        this.age = age;

    }

}

package csic.oa.domain;

import javax.xml.bind.annotation.XmlRootElement;

import javax.xml.bind.annotation.*;

@XmlRootElement(name="person")

public class Personxml {

    private String name;

    private int age;

    public String getName() {

        return name;

    }

    @XmlElement

    public void setName(String name) {

        this.name = name;

    }

    public int getAge() {

        return age;

    }

    @XmlElement

    public void setAge(int age) {

        this.age = age;

    }

}

实际案例xml
To output JSON and XML views, you don’t need to do any extra works, Spring MVC will handle the conversion automatically. Read this Spring MVC and XML, and Spring MVC and JSON examples.

XML example

    <properties>

        <spring.version>3.0..RELEASE</spring.version>

    </properties>

    <dependencies>

        <!-- Spring  dependencies -->

        <dependency>

            <groupId>org.springframework</groupId>

            <artifactId>spring-core</artifactId>

            <version>${spring.version}</version>

        </dependency>

        <dependency>

            <groupId>org.springframework</groupId>

            <artifactId>spring-web</artifactId>

            <version>${spring.version}</version>

        </dependency>

        <dependency>

            <groupId>org.springframework</groupId>

            <artifactId>spring-webmvc</artifactId>

            <version>${spring.version}</version>

        </dependency>

    </dependencies>

A simple POJO model and annotated with JAXB annotation, later convert this object into XML output.

package com.mkyong.common.model;

import javax.xml.bind.annotation.XmlElement;

import javax.xml.bind.annotation.XmlRootElement;

@XmlRootElement(name = "coffee")

public class Coffee {

    String name;

    int quanlity;

    public String getName() {

        return name;

    }

    @XmlElement

    public void setName(String name) {

        this.name = name;

    }

    public int getQuanlity() {

        return quanlity;

    }

    @XmlElement

    public void setQuanlity(int quanlity) {

        this.quanlity = quanlity;

    }

    public Coffee(String name, int quanlity) {

        this.name = name;

        this.quanlity = quanlity;

    }

    public Coffee() {

    }

}

Controller

package com.mkyong.common.controller;

import org.springframework.stereotype.Controller;

import org.springframework.web.bind.annotation.PathVariable;

import org.springframework.web.bind.annotation.RequestMapping;

import org.springframework.web.bind.annotation.RequestMethod;

import org.springframework.web.bind.annotation.ResponseBody;

import com.mkyong.common.model.Coffee;

@Controller

@RequestMapping("/coffee")

public class XMLController {

    @RequestMapping(value="{name}", method = RequestMethod.GET)

    public @ResponseBody Coffee getCoffeeInXML(@PathVariable String name) {

        Coffee coffee = new Coffee(name, );

        return coffee;

    }

}

mvc:annotation-driven

<beans xmlns="http://www.springframework.org/schema/beans"

    xmlns:context="http://www.springframework.org/schema/context"

    xmlns:mvc="http://www.springframework.org/schema/mvc"

    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"

    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/mvc

        http://www.springframework.org/schema/mvc/spring-mvc-3.0.xsd">

    <context:component-scan base-package="com.mkyong.common.controller" />

    <mvc:annotation-driven />

</beans>

Alternatively

Alternatively, you can declares “spring-oxm.jar” dependency and include following MarshallingView, to handle the conversion. With this method, you don’t need annotate @ResponseBody in your method.

<beans ...>

    <bean class="org.springframework.web.servlet.view.BeanNameViewResolver" />

    <bean id="xmlViewer"

        class="org.springframework.web.servlet.view.xml.MarshallingView">

        <constructor-arg>

          <bean class="org.springframework.oxm.jaxb.Jaxb2Marshaller">

            <property name="classesToBeBound">

                <list>

                    <value>com.mkyong.common.model.Coffee</value>

                </list>

            </property>

          </bean>

        </constructor-arg>

    </bean>

</beans>

JSON example

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.</modelVersion>

    <groupId>com.mkyong.common</groupId>

    <artifactId>SpringMVC</artifactId>

    <packaging>war</packaging>

    <version>1.0-SNAPSHOT</version>

    <name>SpringMVC Json Webapp</name>

    <url>http://maven.apache.org</url>

    <properties>

        <spring.version>3.2..RELEASE</spring.version>

        <jackson.version>1.9.</jackson.version>

        <jdk.version>1.6</jdk.version>

    </properties>

    <dependencies>

        <!-- Spring  dependencies -->

        <dependency>

            <groupId>org.springframework</groupId>

            <artifactId>spring-core</artifactId>

            <version>${spring.version}</version>

        </dependency>

        <dependency>

            <groupId>org.springframework</groupId>

            <artifactId>spring-web</artifactId>

            <version>${spring.version}</version>

        </dependency>

        <dependency>

            <groupId>org.springframework</groupId>

            <artifactId>spring-webmvc</artifactId>

            <version>${spring.version}</version>

        </dependency>

        <!-- Jackson JSON Mapper -->

        <dependency>

            <groupId>org.codehaus.jackson</groupId>

            <artifactId>jackson-mapper-asl</artifactId>

            <version>${jackson.version}</version>

        </dependency>

    </dependencies>

    <build>

        <finalName>SpringMVC</finalName>

        <plugins>

          <plugin>

            <groupId>org.apache.maven.plugins</groupId>

            <artifactId>maven-eclipse-plugin</artifactId>

            <version>2.9</version>

            <configuration>

                <downloadSources>true</downloadSources>

                <downloadJavadocs>false</downloadJavadocs>

                <wtpversion>2.0</wtpversion>

            </configuration>

          </plugin>

          <plugin>

            <groupId>org.apache.maven.plugins</groupId>

            <artifactId>maven-compiler-plugin</artifactId>

            <version>2.3.</version>

            <configuration>

                <source>${jdk.version}</source>

                <target>${jdk.version}</target>

            </configuration>

          </plugin>

        </plugins>

    </build>

</project>

Model

A simple POJO, later output this object as formatted JSON data.

package com.mkyong.common.model;

public class Shop {

    String name;

    String staffName[];

    //getter and setter methods

}

Controller

Add @ResponseBody as return value. Wen Spring sees

    Jackson library is existed in the project classpath

    The mvc:annotation-driven is enabled

    Return method annotated with @ResponseBody

Spring will handle the JSON conversion automatically.

package com.mkyong.common.controller;

import org.springframework.stereotype.Controller;

import org.springframework.web.bind.annotation.PathVariable;

import org.springframework.web.bind.annotation.RequestMapping;

import org.springframework.web.bind.annotation.RequestMethod;

import org.springframework.web.bind.annotation.ResponseBody;

import com.mkyong.common.model.Shop;

@Controller

@RequestMapping("/kfc/brands")

public class JSONController {

    @RequestMapping(value="{name}", method = RequestMethod.GET)

    public @ResponseBody Shop getShopInJSON(@PathVariable String name) {

        Shop shop = new Shop();

        shop.setName(name);

        shop.setStaffName(new String[]{"mkyong1", "mkyong2"});

        return shop;

    }

}

mvc:annotation-driven

<beans xmlns="http://www.springframework.org/schema/beans"

    xmlns:context="http://www.springframework.org/schema/context"

    xmlns:mvc="http://www.springframework.org/schema/mvc"

    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"

    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/mvc

        http://www.springframework.org/schema/mvc/spring-mvc-3.0.xsd">

    <context:component-scan base-package="com.mkyong.common.controller" />

    <mvc:annotation-driven />

</beans>

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Spring 梳理 - View - JSON and XML View

XML example

Controller

mvc:annotation-driven

JSON example

Model

Controller

mvc:annotation-driven

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