通过 @RequestBody 解析带有子元素的 XML Web 请求

Question

我需要在我的 Spring Boot 应用程序中解析这样的 XML 文档：

<Transaction id="{ID}" vs="{VS}" uniq="{UNIQ}">
<Data field1="{VAL1}" field2="{VAL2}" />
</Transaction>

这是我@RestController中的端点方法

@RequestMapping(value = "/transaction", method = RequestMethod.POST)
    public ApiClient transaction(@RequestBody TransactionRequest transactionRequest) {
        LOGGER.debug(transactionRequest);
        return null;
    }

和Transaction 类：

@XmlRootElement(name = "Transaction")
@XmlAccessorType(XmlAccessType.FIELD)
@XmlSeeAlso(TransactionRequestData.class)
public class TransactionRequest {

    @XmlElement(name = "id")
    private long id;

    @XmlElement(name = "vs")
    private String vs;

    @XmlElement(name = "uniq")
    private String uniq;

    @XmlElement(name = "data")
    private TransactionRequestData data;
}

和TransactionRequestData

@XmlRootElement(name = "Data")
@XmlAccessorType(XmlAccessType.FIELD)
public class TransactionRequestData {

    @XmlElement(name = "field1")
    private String field1;

    public String getField1() {
        return field1;
    }

    public void setField1(String field1) {
        this.field1 = field1;
    }
}

但这只绑定了Transaction元素数据，但没有绑定Data元素。

有没有办法解析子元素？

Answer 1

id、vs、uniq 属性在您的情况下是 xml 属性。

使用@XmlAttribute 将TransactionRequest pojo 的@XmlElement 注释更改为正确的属性。

使用以下内容：

@XmlRootElement(name = "Transaction")
@XmlAccessorType(XmlAccessType.FIELD)
@XmlSeeAlso(TransactionRequestData.class)
public class TransactionRequest {

    @XmlAttribute(name = "id")
    private long id;

    @XmlAttribute(name = "vs")
    private String vs;

    @XmlAttribute(name = "uniq")
    private String uniq;

    @XmlElement(name = "data")
    private TransactionRequestData data;

    ....getters & setters ommited
}


@XmlRootElement(name = "Data")
@XmlAccessorType(XmlAccessType.FIELD)
public class TransactionRequestData {

    @XmlAttribute(name = "field1")
    private String field1;

    public String getField1() {
        return field1;
    }

    public void setField1(String field1) {
        this.field1 = field1;
    }
     ....getters & setters ommited
}

不要忘记为属性添加 getter 和 setter。