Springboot Restful API XML响应根元素显示为List

Question

我正在尝试以XML响应的形式返回调查列表。我能够得到以下回应：

<List>
    <item>
        <title>My Favorite Survey</title>
        <description>Description of the Survey</description>
        <surveyId>Survey1</surveyId>
        <questions>
            <question>...</question>
            <question>...</question>
        </questions>
    </item>
</List>

但是，我想显示如下响应：

<surveys>
    <survey>
        <title>My Favorite Survey</title>
        <description>Description of the Survey</description>
        <surveyId>Survey1</surveyId>
        <questions>
            <question>...</question>
            <question>...</question>
        </questions>
    </survey>
</surveys>

这是我的POJO课程：

@JacksonXmlRootElement(localName="survey")
public class Survey {
    @JacksonXmlProperty(localName = "surveyId")
    private String id;
    private String title;
    private String description;

    @JacksonXmlElementWrapper(localName = "questions")
    @JacksonXmlProperty(localName = "question")
    private List<Question> questions;
    // getters and setters

}

控制器类：

@RestController    
class SurveyController {
    @Autowired
    private SurveyService surveyService;

    @GetMapping(path = "/surveys")
    public List<Survey> retrieveQuestions() {
        return surveyService.retrieveAllSurveys();
    }
}

好像@JacksonXmlRootElement(localName="survey")在我的情况下不起作用，我可以做什么列表显示为调查。请指导我如何使用我的自定义标签名称代替列表和项目。

Answer 1

对于XML内容，我建议编写一个XSD，然后使用以下Maven插件生成JAXB类：

<plugin>
    <groupId>org.jvnet.jaxb2.maven2</groupId>
    <artifactId>maven-jaxb2-plugin</artifactId>
    <executions>
        <execution>
            <goals>
                <goal>generate</goal>
            </goals>
            <configuration>
                <generatePackage>com.mycompany.myproject.jaxb</generatePackage>
            </configuration>
        </execution>
    </executions>                                 
    <configuration>
        <args>
            <arg>-mark-generated</arg>
        </args>
        <locale>en</locale>
    </configuration>
</plugin>