我正在尝试将 xml 转换为 json。首先,我使用以下 xml 创建了 java 类
<CompositeResponse>
<CompositeIndividualResponse>
<PersonIdentification>2222</PersonIdentification>
</CompositeIndividualResponse>
</CompositeResponse>
以下 java 类如下:
public class Main {
public CompositeResponse CompositeResponse;
public CompositeResponse getCompositeResponse() {
return CompositeResponse;
}
public void setCompositeResponse(CompositeResponse CompositeResponse) {
this.CompositeResponse = CompositeResponse;
}
}
public class CompositeResponse {
private List<CompositeIndividualResponse> CompositeIndividualResponse;
public List<CompositeIndividualResponse> getCompositeIndividualResponse() {
return CompositeIndividualResponse;
}
public void setCompositeIndividualResponse(List<CompositeIndividualResponse> CompositeIndividualResponse) {
CompositeIndividualResponse = CompositeIndividualResponse;
}
}
public class CompositeIndividualResponse {
private String Persondentification;
public String getPersondentification() {
return Persondentification;
}
public void setPersonIdentification (String PersonIdentification) {
this.PersonIdentification = PersonIdentification;
}
}
I am using the following code for conversion:
import java.io.IOException;
import java.nio.file.Files;
import java.nio.file.Paths;
import com.fasterxml.jackson.databind.ObjectMapper;
import com.fasterxml.jackson.dataformat.xml.XmlMapper;
public class XMLToJson {
public static void main(String[] args) throws IOException {
String content = new String(Files.readAllBytes(Paths.get("test.xml")));
XmlMapper xmlMapper = new XmlMapper();
Main poppy = xmlMapper.readValue(content, Main.class);
ObjectMapper mapper = new ObjectMapper();
String json = mapper.writeValueAsString(poppy);
System.out.println(json);
}
}
但我收到以下异常,CompositeIndividualResponse 无法识别。
Exception in thread "main" com.fasterxml.jackson.databind.exc.UnrecognizedPropertyException: Unrecognized field "CompositeIndividualResponse" (class com.test.custom.copy.Main), not marked as ignorable (2 known properties: "CompositeResponse", "compositeResponse"])
at [Source: (StringReader); line: 3, column: 32] (through reference chain: com.test.custom.copy.Main["CompositeIndividualResponse"])
我相信我的 java pojo 不适合 xml 数据。那么如何定义pojo的集合来解决这个问题,这样我就可以得到以下json:
{
"CompositeResponse":{
"CompositeIndividualResponse":
[
{
"PersonSSNIdentification":"221212501"
}
]
}
}
最佳答案
像这样定义你的POJO,
public class CompositeResponse {
private List<CompositeIndividualResponse> compositeIndividualResponse;
public List<CompositeIndividualResponse> getCompositeIndividualResponse() {
return compositeIndividualResponse;
}
public void setCompositeIndividualResponse(List<CompositeIndividualResponse> compositeIndividualResponse) {
CompositeIndividualResponse = compositeIndividualResponse;
}
}
public class CompositeIndividualResponse {
private String personIdentification;
public String getPersonIdentification() {
return personIdentification;
}
public void setPersonIdentification (String personIdentification) {
this.personIdentification= personIdentification;
}
}
然后按如下方式更新您的主程序,
public class XMLToJson {
public static void main(String[] args) throws IOException {
String content = new String(Files.readAllBytes(Paths.get("test.xml")));
XmlMapper xmlMapper = new XmlMapper();
CompositeResponse poppy = xmlMapper.readValue(content, CompositeResponse.class);
ObjectMapper mapper = new ObjectMapper();
String json = mapper.writeValueAsString(poppy);
System.out.println(json);
}
}
关于java - 使用 Jackson 通过 java pojo 将 XMl 转换为 JSON,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/56485703/