SpringBoot返回json和xml

傷城~ 2022-05-27 00:27 281阅读 0赞

有些情况接口需要返回的是xml数据，在springboot中并不需要每次都转换一下数据格式，只需做一些微调整即可。

新建一个springboot项目，加入依赖jackson-dataformat-xml，pom文件代码如下：

<?xml version="1.0" encoding="UTF-8"?>
    <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>4.0.0</modelVersion>
    
        <groupId>com.dalaoyang</groupId>
        <artifactId>springboot_xml</artifactId>
        <version>0.0.1-SNAPSHOT</version>
        <packaging>jar</packaging>
    
        <name>springboot_xml</name>
        <description>springboot_xml</description>
    
        <parent>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-parent</artifactId>
            <version>1.5.9.RELEASE</version>
            <relativePath/> 
        </parent>
    
        <properties>
            <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
            <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
            <java.version>1.8</java.version>
        </properties>
    
        <dependencies>
            <dependency>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-starter-web</artifactId>
            </dependency>
    
            <dependency>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-devtools</artifactId>
                <scope>runtime</scope>
            </dependency>
            <dependency>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-starter-test</artifactId>
                <scope>test</scope>
            </dependency>
    
            <dependency>
                <groupId>com.fasterxml.jackson.dataformat</groupId>
                <artifactId>jackson-dataformat-xml</artifactId>
            </dependency>
        </dependencies>
    
        <build>
            <plugins>
                <plugin>
                    <groupId>org.springframework.boot</groupId>
                    <artifactId>spring-boot-maven-plugin</artifactId>
                </plugin>
            </plugins>
        </build>
    
    
    </project>

启动类默认即可，没有做任何调整。

新建一个user类，代码如下：

package com.dalaoyang.entity;
    
    import javax.xml.bind.annotation.XmlElement;
    import javax.xml.bind.annotation.XmlRootElement;
    
    /**
     * @author dalaoyang
     * @Description
     * @project springboot_learn
     * @package com.dalaoyang.entity
     * @email yangyang@dalaoyang.cn
     * @date 2018/4/8
     */
    @XmlRootElement
    public class User {
    
        String userName;
        String userAge;
        String userAddress;
    
        public User(String userName, String userAge, String userAddress) {
            this.userName = userName;
            this.userAge = userAge;
            this.userAddress = userAddress;
        }
    
        @XmlElement
        public String getUserName() {
            return userName;
        }
    
        public void setUserName(String userName) {
            this.userName = userName;
        }
    
        @XmlElement
        public String getUserAge() {
            return userAge;
        }
    
        public void setUserAge(String userAge) {
            this.userAge = userAge;
        }
    
        @XmlElement
        public String getUserAddress() {
            return userAddress;
        }
    
        public void setUserAddress(String userAddress) {
            this.userAddress = userAddress;
        }
    }

最后是controller，代码如下：

package com.dalaoyang.controller;
    
    import com.dalaoyang.entity.User;
    import org.springframework.http.MediaType;
    import org.springframework.web.bind.annotation.GetMapping;
    import org.springframework.web.bind.annotation.RestController;
    
    /**
     * @author dalaoyang
     * @Description
     * @project springboot_learn
     * @package com.dalaoyang.controller
     * @email yangyang@dalaoyang.cn
     * @date 2018/4/8
     */
    @RestController
    public class UserController {
    
        //http://localhost:8080/json
        @GetMapping(value = "/json",produces = MediaType.APPLICATION_JSON_VALUE)
        public User index(){
            User user = new User("dalaoyang", "26", "北京");
            return user;
        }
    
    
        //http://localhost:8080/xml
        @GetMapping(value = "/xml",produces = MediaType.APPLICATION_XML_VALUE)
        public User XML(){
            User user = new User("dalaoyang", "26", "北京");
            return user;
        }
    }

到这里就可以启动项目了，访问http://localhost:8080/json,可以看到如下图

![1][]

访问http://localhost:8080/xml，如下图

![2][]

[1]: /images/20220527/67c1352551d94933882bfd9b72d58f83.png
[2]: /images/20220527/2939a29c42f14831836a4d7af4ffbb8f.png