我正在尝试映射JSON响应,如下所示:
{
object: {
id: 1
name: "my name"
email: "username@mail.com"
username: "username"
password: "password"
mobile: "##########"
fbAccessToken: "----------"
img: null
}
errorMessage: ""
successMessage: ""
technicalErrorMessage: ""
error: false
}
所以我写了这个方法:
private <T> ResponseEntity<T> processedRequest(HttpRequestBase requestBase, Class<T> tClass) throws IOException {
HttpResponse response = httpClient.execute(requestBase);
HttpEntity entity = response.getEntity();
Reader reader = new InputStreamReader(entity.getContent());
Type type = new TypeToken<ResponseEntity<T>>() {}.getType();
ResponseEntity<T> responseEntity = gson.fromJson(reader, type);
return responseEntity;
}
基于ResponseEntity
类:
public class ResponseEntity<T> {
private T object;
private boolean isError;
private String errorMessage;
private String successMessage;
private String technicalErrorMessage;
public ResponseEntity() {
setSuccessMessage("");
setError(false);
setErrorMessage("");
setTechnicalErrorMessage("");
}
public T getObject() {
return object;
}
public void setObject(T object) {
this.object = object;
}
public boolean isError() {
return isError;
}
public void setError(boolean error) {
this.isError = error;
}
public String getErrorMessage() {
return errorMessage;
}
public void setErrorMessage(String errorMessage) {
this.errorMessage = errorMessage;
}
public String getTechnicalErrorMessage() {
return technicalErrorMessage;
}
public void setTechnicalErrorMessage(String technicalErrorMessage) {
this.technicalErrorMessage = technicalErrorMessage;
}
public String getSuccessMessage() {
return successMessage;
}
public void setSuccessMessage(String successMessage) {
this.successMessage = successMessage;
}}
但是我得到的结果为ResponseEntity<LinkedTreeMap>
,对象是(Key->Value
)的映射,而不是由ResponseEntity<T>
类型发送的实际映射对象。
下面的图片是调试器中出现的内容:
答案 0 :(得分:0)
GSON应该如何理解,它应该使用哪个类来代替T
以及&#34;实际映射的对象是由Type&#34发送的?填补它的领域?对于Java中的泛型,我们有type erasure,因此在运行时无法理解它是什么T
。没办法,所以gson只使用泛型Map<String, String>()
。
看看对此question的回复,情况相同。