我有客户端和服务器应用程序,都是用Spring编写的。
我正在使用RestTemplate
从客户端调用服务器。
服务器返回不同的响应对象,具体取决于操作结果。
简化代码:
public ResponseEntity<?> saveSomething (Object something) {
boolean saved = save(something); //save logic
if(saved)
return new ResponseEntity<OKObject>(okObject,HttpStatus.OK);
else
return new ResponseEntity<ErrorObject>(errorObject,HttpStatus.FAILED);
}
我希望能够通过状态代码在客户端上读取这些响应,但是RestTemplate仅提供读取一种类型,例如<Object_type>.class
;
并在执行.getForEntity(...)
操作后提供状态代码 -
何时返回响应类型。
在客户端伪代码我想要的是什么:
public void saveSomething(Object toSave) {
ResTemplate template = new RestTemplate();
ResponseEntity<Object> response = template.getForEntity(url,Object.class);
if(response.getStatusCode() == HttpStatus.OK) {
OKObject ok = (OKObject) response.getBody();
//some work with ok object
}
if(response.getStatusCode() == HttpStatus.FAILED) {
ErrorObject errorObject = (ErrorObject) response.getBody();
//some work with errorObject
}
}
这可能是以一种非黑客,干净的方式吗?我读到有关将响应类型设置为String.class
并在之后解析,或阅读Object.class
(返回LinkedHashMap
)并解析它。
感谢您的任何提示。
答案 0 :(得分:3)
我建议引入一个常见的响应,包括ok和error(其中一个为null)
publi class CommonResponseObject {
private OKObject okObject;
private ErrorObject errorObject;
public CommonResponseObject(OKObject okObject) {
this.okObject=okObject;
}
public CommonResponseObject(ErrorObject errorObject) {
this.errorObject=errorObject;
}
}
并使用它
public ResponseEntity<CommonResponseObject > saveSomething (Object something) {
boolean saved = save(something); //save logic
if(saved)
return new ResponseEntity<>(new CommonResponseObject(okObject),HttpStatus.OK);
else
return new ResponseEntity<>(new CommonResponseObject(errorObject),HttpStatus.FAILED);
}
并处理结果
public void saveSomething(Object toSave) {
ResTemplate template = new RestTemplate();
ResponseEntity<CommonResponseObject> response = template.getForEntity(url,CommonResponseObject.class);
if(response.getStatusCode() == HttpStatus.OK) {
OKObject ok = response.getBody().getOkObject();
}
if(response.getStatusCode() == HttpStatus.FAILED) {
ErrorObject errorObject = response.getBody().getErrorObject();
}
}