Springboot集成JAXB返回xml格式

更新時(shí)間：2024年12月24日 15:44:33 作者：考慮考慮

這篇文章主要為大家詳細(xì)介紹了Springboot如何集成JAXB返回xml格式,文中的示例代碼講解詳細(xì),感興趣的小伙伴可以跟隨小編一起學(xué)習(xí)一下

前言

Springboot可以返回xml數(shù)據(jù)格式

xml數(shù)據(jù)格式

本文使用的是Springboot3.4.x版本以上以及jdk17以上，由于在JDK9版本以后javax包被移動(dòng)并更名為 jakarta，因此使用包如下

<!-- https://mvnrepository.com/artifact/jakarta.xml.bind/jakarta.xml.bind-api -->
<dependency>
    <groupId>jakarta.xml.bind</groupId>
    <artifactId>jakarta.xml.bind-api</artifactId>
    <version>4.0.2</version>
</dependency>

<!-- https://mvnrepository.com/artifact/org.glassfish.jaxb/jaxb-runtime -->
<dependency>
    <groupId>org.glassfish.jaxb</groupId>
    <artifactId>jaxb-runtime</artifactId>
    <version>4.0.5</version>
</dependency>

實(shí)體類配置

import jakarta.xml.bind.annotation.XmlElement;
import jakarta.xml.bind.annotation.XmlRootElement;

@XmlRootElement
public class User {

    @XmlElement
    private Long id;

    @XmlElement
    private String userName;

    @XmlElement
    private Integer age;


    public Long getId() {
        return id;
    }

    public void setId(Long id) {
        this.id = id;
    }

    public String getUserName() {
        return userName;
    }

    public void setUserName(String userName) {
        this.userName = userName;
    }

    public Integer getAge() {
        return age;
    }

    public void setAge(Integer age) {
        this.age = age;
    }

    public User(Long id, String userName, Integer age) {
        this.id = id;
        this.userName = userName;
        this.age = age;
    }


    @Override
    public String toString() {
        return "User{" +
                "id=" + id +
                ", userName='" + userName + ''' +
                ", age=" + age +
                '}';
    }
}

接口層配置

@RestController
public class UserController {

    @GetMapping(value = "/getJson", produces = MediaType.APPLICATION_JSON_VALUE)
    public User getJson() {
        User user = new User(2L, "asdas1", 15);
        return user;
    }


    @GetMapping(value = "/getXml", produces = MediaType.APPLICATION_XML_VALUE)
    public User getXml() {
        User user = new User(1L, "hello", 12);
        return user;
    }
}

xml返回

一開(kāi)始，調(diào)用

http://ip:端口/getXml

拋出異常，異常如下

后面調(diào)試源碼異常信息，發(fā)現(xiàn)需要一個(gè)無(wú)參構(gòu)造器，因此在實(shí)體類加上無(wú)參構(gòu)造函數(shù)

import jakarta.xml.bind.annotation.XmlElement;
import jakarta.xml.bind.annotation.XmlRootElement;

@XmlRootElement
public class User {

    @XmlElement
    private Long id;

    @XmlElement
    private String userName;

    @XmlElement
    private Integer age;


    public Long getId() {
        return id;
    }

    public void setId(Long id) {
        this.id = id;
    }

    public String getUserName() {
        return userName;
    }

    public void setUserName(String userName) {
        this.userName = userName;
    }

    public Integer getAge() {
        return age;
    }

    public void setAge(Integer age) {
        this.age = age;
    }

    public User() {
        
    }

    public User(Long id, String userName, Integer age) {
        this.id = id;
        this.userName = userName;
        this.age = age;
    }


    @Override
    public String toString() {
        return "User{" +
                "id=" + id +
                ", userName='" + userName + ''' +
                ", age=" + age +
                '}';
    }
}

然后調(diào)用接口發(fā)覺(jué)還是異常

然后發(fā)覺(jué)異常信息為

發(fā)覺(jué)該包會(huì)從成員變量以及get方法中獲取變量，因此重復(fù)了，就異常了，

解決方法如下

更改get方法名稱

import jakarta.xml.bind.annotation.XmlElement;
import jakarta.xml.bind.annotation.XmlRootElement;

@XmlRootElement
public class User {

    @XmlElement
    private Long id;

    @XmlElement
    private String userName;

    @XmlElement
    private Integer age;


    public Long getId1() {
        return id;
    }

    public void setId(Long id) {
        this.id = id;
    }

    public String getUserName1() {
        return userName;
    }

    public void setUserName(String userName) {
        this.userName = userName;
    }

    public Integer getAge1() {
        return age;
    }

    public void setAge(Integer age) {
        this.age = age;
    }

    public User() {

    }

    public User(Long id, String userName, Integer age) {
        this.id = id;
        this.userName = userName;
        this.age = age;
    }


    @Override
    public String toString() {
        return "User{" +
                "id=" + id +
                ", userName='" + userName + ''' +
                ", age=" + age +
                '}';
    }
}

訪問(wèn)之后返回

使用@XmlAccessorType

@XmlRootElement
@XmlAccessorType(XmlAccessType.FIELD)
public class User {

    @XmlElement
    private Long id;

    @XmlElement
    private String userName;

    @XmlElement
    private Integer age;


    public Long getId() {
        return id;
    }

    public void setId(Long id) {
        this.id = id;
    }

    public String getUserName() {
        return userName;
    }

    public void setUserName(String userName) {
        this.userName = userName;
    }

    public Integer getAge() {
        return age;
    }

    public void setAge(Integer age) {
        this.age = age;
    }

    public User() {

    }

    public User(Long id, String userName, Integer age) {
        this.id = id;
        this.userName = userName;
        this.age = age;
    }


    @Override
    public String toString() {
        return "User{" +
                "id=" + id +
                ", userName='" + userName + ''' +
                ", age=" + age +
                '}';
    }
}

在類上加上 @XmlAccessorType(XmlAccessType.FIELD) 注解，加上此注解后，xml的訪問(wèn)類型為成員變量，而不是getter/setter方法

備注: 返回xml時(shí)，需要加上這個(gè)

 produces = MediaType.APPLICATION_XML_VALUE

以上就是Springboot集成JAXB返回xml格式的詳細(xì)內(nèi)容，更多關(guān)于Springboot集成JAXB返回xml的資料請(qǐng)關(guān)注腳本之家其它相關(guān)文章！

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Springboot集成JAXB返回xml格式

目錄

前言

xml數(shù)據(jù)格式

實(shí)體類配置

接口層配置

xml返回

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