docs(merchant): 03/04 代码侧交付完成，补可执行的阶段指引

yeg

2026-09-16 3a024caa497b8923635c02e0c8c0df07f2918f81

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package com.talentcard.server.common;
 
import java.util.stream.Collectors;
 
import jakarta.validation.ConstraintViolationException;
import org.springframework.http.HttpStatus;
import org.springframework.http.ResponseEntity;
import org.springframework.http.converter.HttpMessageNotReadableException;
import org.springframework.validation.BindException;
import org.springframework.web.bind.MethodArgumentNotValidException;
import org.springframework.web.bind.annotation.ExceptionHandler;
import org.springframework.web.bind.annotation.RestControllerAdvice;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
 
@RestControllerAdvice
public class GlobalExceptionHandler {
 
    private static final Logger log = LoggerFactory.getLogger(GlobalExceptionHandler.class);
 
    @ExceptionHandler(BusinessException.class)
    public ResponseEntity<ApiResponse<Void>> handleBusinessException(BusinessException exception) {
        HttpStatus status = HttpStatus.valueOf(exception.errorCode().code());
        return ResponseEntity.status(status)
                .body(ApiResponse.failure(exception.errorCode().code(), exception.getMessage()));
    }
 
    @ExceptionHandler(MethodArgumentNotValidException.class)
    public ResponseEntity<ApiResponse<Void>> handleMethodArgumentNotValid(MethodArgumentNotValidException exception) {
        String message = exception.getBindingResult().getFieldErrors().stream()
                .map(error -> error.getField() + " " + error.getDefaultMessage())
                .collect(Collectors.joining("; "));
        return badRequest(message);
    }
 
    @ExceptionHandler(BindException.class)
    public ResponseEntity<ApiResponse<Void>> handleBindException(BindException exception) {
        String message = exception.getBindingResult().getFieldErrors().stream()
                .map(error -> error.getField() + " " + error.getDefaultMessage())
                .collect(Collectors.joining("; "));
        return badRequest(message);
    }
 
    @ExceptionHandler(ConstraintViolationException.class)
    public ResponseEntity<ApiResponse<Void>> handleConstraintViolation(ConstraintViolationException exception) {
        String message = exception.getConstraintViolations().stream()
                .map(violation -> violation.getPropertyPath() + " " + violation.getMessage())
                .collect(Collectors.joining("; "));
        return badRequest(message);
    }
 
    @ExceptionHandler(HttpMessageNotReadableException.class)
    public ResponseEntity<ApiResponse<Void>> handleUnreadableMessage(HttpMessageNotReadableException exception) {
        return badRequest("请求内容格式不正确");
    }
 
    @ExceptionHandler(Exception.class)
    public ResponseEntity<ApiResponse<Void>> handleException(Exception exception) {
        log.error("Unhandled request exception", exception);
        return ResponseEntity.status(HttpStatus.INTERNAL_SERVER_ERROR)
                .body(ApiResponse.failure(ErrorCode.INTERNAL_ERROR.code(), ErrorCode.INTERNAL_ERROR.message()));
    }
 
    private ResponseEntity<ApiResponse<Void>> badRequest(String message) {
        return ResponseEntity.status(HttpStatus.BAD_REQUEST)
                .body(ApiResponse.failure(ErrorCode.BAD_REQUEST.code(), message));
    }
}