挑战目标: MockNative Camp
今天来自定义Spring ExceptionHandler,首先先建立handler、exception资料夹,并新增这些档案
ClientHttpServerErrorException.java
package com.mock.nativecamp.handler;
import com.fasterxml.jackson.databind.exc.ValueInstantiationException;
import com.mock.nativecamp.exception.ClientHttpServerErrorException;
import com.mock.nativecamp.exception.TransactionNotFoundException;
import com.mock.nativecamp.payload.CommonResponse;
import com.mock.nativecamp.payload.sub.Info;
import lombok.extern.slf4j.Slf4j;
import org.springframework.web.bind.annotation.ExceptionHandler;
import org.springframework.web.bind.annotation.ResponseBody;
import org.springframework.web.bind.annotation.RestControllerAdvice;
@RestControllerAdvice
@Slf4j
public class ApiExceptionHandler {
/**
* Inquiry not found
*
* @param e
* @return paymentMSErrorResponse
*/
@ExceptionHandler(TransactionNotFoundException.class)
@ResponseBody
public Object handleNotFound(TransactionNotFoundException e) {
CommonResponse commonResponse = new CommonResponse();
commonResponse.setInfo(generateInfo("404", e.getMessage()));
log.error("catch Not Found error: " + commonResponse.toString());
return commonResponse;
}
/**
* @param e
* @return Object
*/
@ExceptionHandler(ClientHttpServerErrorException.class)
@ResponseBody
public Object handleClientError(ClientHttpServerErrorException e) {
CommonResponse commonResponse = new CommonResponse();
commonResponse.setInfo(generateInfo(e.getMessage().split("\\s+")[0], e.getMessage()));
log.error("catch error: " + commonResponse.toString());
return commonResponse;
}
@ExceptionHandler(ValueInstantiationException.class)
@ResponseBody
public Object handleValidError(ValueInstantiationException e) {
CommonResponse commonResponse = new CommonResponse();
commonResponse.setInfo(generateInfo("401", e.getOriginalMessage().split("problem: ")[1]));
return commonResponse;
}
private Info generateInfo(String code, String message) {
Info info = new Info();
info.setStatus(code);
info.setMessage(message);
return info;
}
}
TransactionNotFoundException.java
package com.mock.nativecamp.exception;
public class TransactionNotFoundException extends RuntimeException {
public TransactionNotFoundException() {
}
}
ValidException.java
package com.mock.nativecamp.exception;
import org.springframework.validation.Errors;
public class ValidException extends RuntimeException {
private Errors errors;
public ValidException(String message, Errors errors) {
super(message);
this.errors = errors;
}
}
ApiExceptionHandler.java
package com.mock.nativecamp.handler;
import com.fasterxml.jackson.databind.exc.ValueInstantiationException;
import com.mock.nativecamp.exception.ClientHttpServerErrorException;
import com.mock.nativecamp.exception.TransactionNotFoundException;
import com.mock.nativecamp.payload.CommonResponse;
import com.mock.nativecamp.payload.sub.Info;
import lombok.extern.slf4j.Slf4j;
import org.springframework.web.bind.annotation.ExceptionHandler;
import org.springframework.web.bind.annotation.ResponseBody;
import org.springframework.web.bind.annotation.RestControllerAdvice;
@RestControllerAdvice
@Slf4j
public class ApiExceptionHandler {
/**
* Inquiry not found
*
* @param e
* @return paymentMSErrorResponse
*/
@ExceptionHandler(TransactionNotFoundException.class)
@ResponseBody
public Object handleNotFound(TransactionNotFoundException e) {
CommonResponse commonResponse = new CommonResponse();
commonResponse.setInfo(generateInfo("404", e.getMessage()));
log.error("catch Not Found error: " + commonResponse.toString());
return commonResponse;
}
/**
* @param e
* @return Object
*/
@ExceptionHandler(ClientHttpServerErrorException.class)
@ResponseBody
public Object handleClientError(ClientHttpServerErrorException e) {
CommonResponse commonResponse = new CommonResponse();
commonResponse.setInfo(generateInfo(e.getMessage().split("\\s+")[0], e.getMessage()));
log.error("catch error: " + commonResponse.toString());
return commonResponse;
}
@ExceptionHandler(ValueInstantiationException.class)
@ResponseBody
public Object handleValidError(ValueInstantiationException e) {
CommonResponse commonResponse = new CommonResponse();
commonResponse.setInfo(generateInfo("401", e.getOriginalMessage().split("problem: ")[1]));
return commonResponse;
}
private Info generateInfo(String code, String message) {
Info info = new Info();
info.setStatus(code);
info.setMessage(message);
return info;
}
}
ValueInstantiationException是lombok检查时错误的Exception,只要接住处理後就可以达成我们要的response
测试
这样就可以透过新增自定义Exception在ExceptionHandler这边去做自定义response。
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