java中jackson将嵌套hashmap映射到嵌套pojo类
我有一个这样的嵌套java映射 inputMap:{jobId={EndpointReference={ReferenceParameters={ResourceURI=http://schemas.com/wbem/wscim/1/cim-schema/2/Job,SelectorSet={Selector=[JID_502260561923,root/im]},地址=http://schemas.xmlsoap.org/ws/2004/08/addressing/role/anonymous}},returncode=4096,messageId=null,arguments=null,message=null} 我想映射到JavaPOJO,这里是我的pojo类java中jackson将嵌套hashmap映射到嵌套pojo类,java,jackson,pojo,objectmapper,Java,Jackson,Pojo,Objectmapper,我有一个这样的嵌套java映射 inputMap:{jobId={EndpointReference={ReferenceParameters={ResourceURI=http://schemas.com/wbem/wscim/1/cim-schema/2/Job,SelectorSet={Selector=[JID_502260561923,root/im]},地址=http://schemas.xmlsoap.org/ws/2004/08/addressing/role/anonymous
@Getter
@Setter
@ToString
public class DMResponseMapper {
@Getter
@Setter
@ToString
public static class GetSysConfigDMResponseMapper {
@JsonProperty("jobId")
private EndpointReferenceMapper endpointReferenceMapper;
private Integer returnCode;
private String messageId;
private String arguments;
private String message;
@Getter
@Setter
@ToString
public static class EndpointReferenceMapper {
@JsonProperty("ReferenceParameters")
private ReferenceParametersMapper referenceParametersMapper;
@JsonProperty("Address")
private String address;
@Getter
@Setter
@ToString
public static class ReferenceParametersMapper {
@JsonProperty("ResourceURI")
private String resourceURI;
@JsonProperty("SelectorSet")
private SelectorSetMapper selectorSetMapper;
@Getter
@Setter
@ToString
public static class SelectorSetMapper {
@JsonProperty("Selector")
private List<String> selector;
}
}
}
}
}
}
响应对象是:
DMResponseMapper.GetSysConfigDMResponseMapper(endpointReferenceMapper=DMResponseMapper.GetSysConfigDMResponseMapper.endpointReferenceMapper(referenceParametersMapper=null,address=null),returnCode=4096,messageId=null,arguments=null,message=null)
谁能告诉我,这里怎么了
调试时,我看到的是:
已将endpointReferenceMapper转换为类型对象
DMResponseMapper.GetSysConfigDMResponseMapper(endpointReferenceMapper={EndpointReference={ReferenceParameters={ResourceURI=http://schemas.com/wbem/wscim/1/cim-schema/2/Job, SelectorSet={Selector=[JID_502318722705, root/dcim]}}, Address=http://schemas.xmlsoap.org/ws/2004/08/addressing/role/anonymous}}, returnCode=4096, messageId=null, arguments=null, message=null)
DMResponseMapper
pojo需要更密切地跟踪源数据的结构
根据问题中的信息,源Map
对象具有以下结构:
inputMap:
{
jobId={
EndpointReference={
ReferenceParameters={
ResourceURI=http://schemas.com/wbem/wscim/1/cim-schema/2/Job,
SelectorSet={
Selector=[JID_502260561923, root/im]
}
},
Address=http://schemas.xmlsoap.org/ws/2004/08/addressing/role/anonymous
}
},
returncode=4096,
messageId=null,
arguments=null,
message=null
}
因此,我调整了您的DMResponseMapper
pojo类,以更紧密地映射到该结构,并且还更改了嵌套的类名。以下是嵌套类及其数据字段的摘要:
//
// NOT the actual class - just an overview of the structure!
//
class DMResponseMapper {
private JobId jobId;
private Integer returncode;
private Object messageId;
private Object arguments;
private Object message;
class JobId {
private EndpointReference endpointReference;
class EndpointReference {
private ReferenceParameters referenceParameters;
private String address;
class ReferenceParameters {
private String resourceURI;
private SelectorSet selectorSet;
class SelectorSet {
private List<String> selector = null;
}
}
}
}
}
生成的mapper
对象包含测试数据:
List<String> selector = new ArrayList();
selector.add("JID_502260561923");
selector.add("root/im");
Map<String, Object> selectorSet = new HashMap();
selectorSet.put("Selector", selector);
String resourceURI = "http://schemas.com/wbem/wscim/1/cim-schema/2/Job";
Map<String, Object> referenceParameters = new HashMap();
referenceParameters.put("ResourceURI", resourceURI);
referenceParameters.put("SelectorSet", selectorSet);
String address = "http://schemas.xmlsoap.org/ws/2004/08/addressing/role/anonymous";
Map<String, Object> endpointReference = new HashMap();
endpointReference.put("ReferenceParameters", referenceParameters);
endpointReference.put("Address", address);
Map<String, Object> jobId = new HashMap();
jobId.put("EndpointReference", endpointReference);
Map<String, Object> inputMap = new HashMap();
inputMap.put("jobId", jobId);
inputMap.put("returncode", 4096);
inputMap.put("messageId", "foo");
inputMap.put("arguments", "bar");
inputMap.put("message", "baz");
谢谢。这是一次失误。。我看不清嵌套的细节。你用什么工具来展示课堂布局?你是welcone。在本例中,我使用格式化JSON-这使我能够更清楚地看到嵌套。然后,我设计了类嵌套以遵循该结构(仅类和字段)。这是一个手动步骤,但您可以使用诸如之类的工具来帮助实现这一点。这是一个很好的工具——特别是对于复杂的JSON,但有时我会简化它生成的内容以满足我的特定需求。可能有更好的方法——我不是JSON专家。
//
// Here is the actual class, based on the above structure.
//
import com.fasterxml.jackson.annotation.JsonProperty;
import java.util.List;
public class DMResponseMapper {
@JsonProperty("jobId")
private JobId jobId;
@JsonProperty("returncode")
private Integer returncode;
@JsonProperty("messageId")
private Object messageId;
@JsonProperty("arguments")
private Object arguments;
@JsonProperty("message")
private Object message;
@JsonProperty("jobId")
public JobId getJobId() {
return jobId;
}
@JsonProperty("jobId")
public void setJobId(JobId jobId) {
this.jobId = jobId;
}
@JsonProperty("returncode")
public Integer getReturncode() {
return returncode;
}
@JsonProperty("returncode")
public void setReturncode(Integer returncode) {
this.returncode = returncode;
}
@JsonProperty("messageId")
public Object getMessageId() {
return messageId;
}
@JsonProperty("messageId")
public void setMessageId(Object messageId) {
this.messageId = messageId;
}
@JsonProperty("arguments")
public Object getArguments() {
return arguments;
}
@JsonProperty("arguments")
public void setArguments(Object arguments) {
this.arguments = arguments;
}
@JsonProperty("message")
public Object getMessage() {
return message;
}
@JsonProperty("message")
public void setMessage(Object message) {
this.message = message;
}
public static class JobId {
@JsonProperty("EndpointReference")
private EndpointReference endpointReference;
@JsonProperty("EndpointReference")
public EndpointReference getEndpointReference() {
return endpointReference;
}
@JsonProperty("EndpointReference")
public void setEndpointReference(EndpointReference endpointReference) {
this.endpointReference = endpointReference;
}
public static class EndpointReference {
@JsonProperty("ReferenceParameters")
private ReferenceParameters referenceParameters;
@JsonProperty("Address")
private String address;
@JsonProperty("ReferenceParameters")
public ReferenceParameters getReferenceParameters() {
return referenceParameters;
}
@JsonProperty("ReferenceParameters")
public void setReferenceParameters(ReferenceParameters referenceParameters) {
this.referenceParameters = referenceParameters;
}
@JsonProperty("Address")
public String getAddress() {
return address;
}
@JsonProperty("Address")
public void setAddress(String address) {
this.address = address;
}
public static class ReferenceParameters {
@JsonProperty("ResourceURI")
private String resourceURI;
@JsonProperty("SelectorSet")
private SelectorSet selectorSet;
@JsonProperty("ResourceURI")
public String getResourceURI() {
return resourceURI;
}
@JsonProperty("ResourceURI")
public void setResourceURI(String resourceURI) {
this.resourceURI = resourceURI;
}
@JsonProperty("SelectorSet")
public SelectorSet getSelectorSet() {
return selectorSet;
}
@JsonProperty("SelectorSet")
public void setSelectorSet(SelectorSet selectorSet) {
this.selectorSet = selectorSet;
}
public static class SelectorSet {
@JsonProperty("Selector")
private List<String> selector = null;
@JsonProperty("Selector")
public List<String> getSelector() {
return selector;
}
@JsonProperty("Selector")
public void setSelector(List<String> selector) {
this.selector = selector;
}
}
}
}
}
}
List<String> selector = new ArrayList();
selector.add("JID_502260561923");
selector.add("root/im");
Map<String, Object> selectorSet = new HashMap();
selectorSet.put("Selector", selector);
String resourceURI = "http://schemas.com/wbem/wscim/1/cim-schema/2/Job";
Map<String, Object> referenceParameters = new HashMap();
referenceParameters.put("ResourceURI", resourceURI);
referenceParameters.put("SelectorSet", selectorSet);
String address = "http://schemas.xmlsoap.org/ws/2004/08/addressing/role/anonymous";
Map<String, Object> endpointReference = new HashMap();
endpointReference.put("ReferenceParameters", referenceParameters);
endpointReference.put("Address", address);
Map<String, Object> jobId = new HashMap();
jobId.put("EndpointReference", endpointReference);
Map<String, Object> inputMap = new HashMap();
inputMap.put("jobId", jobId);
inputMap.put("returncode", 4096);
inputMap.put("messageId", "foo");
inputMap.put("arguments", "bar");
inputMap.put("message", "baz");
ObjectMapper objectMapper = new ObjectMapper();
DMResponseMapper mapper = objectMapper.convertValue(inputMap, DMResponseMapper.class);