如何在Spring Boot Java应用程序中提高自定义异常的可读性

// 自定义异常类
public class CustomException extends RuntimeException {
    private String errorCode;
    private String errorMessage;

    public CustomException(String errorCode, String errorMessage) {
        this.errorCode = errorCode;
        this.errorMessage = errorMessage;
    }

    public String getErrorCode() {
        return errorCode;
    }

    public String getErrorMessage() {
        return errorMessage;
    }
}

// 异常处理
public void someMethod() {
    try {
        // 业务逻辑代码
        if (someCondition) {
            throw new CustomException("ERR001", "Some error message");
        }
    } catch (CustomException ex) {
        // 异常捕获和处理
        // 可以记录日志、返回错误信息给客户端等
        System.out.println("Error code: " + ex.getErrorCode());
        System.out.println("Error message: " + ex.getErrorMessage());
    }
}

// 全局异常处理器
@RestControllerAdvice
public class GlobalExceptionHandler {
    @ExceptionHandler(CustomException.class)
    public ResponseEntity<ErrorResponse> handleCustomException(CustomException ex) {
        ErrorResponse errorResponse = new ErrorResponse(ex.getErrorCode(), ex.getErrorMessage());
        return new ResponseEntity<>(errorResponse, HttpStatus.INTERNAL_SERVER_ERROR);
    }
}

// 错误响应类
public class ErrorResponse {
    private String errorCode;
    private String errorMessage;

    public ErrorResponse(String errorCode, String errorMessage) {
        this.errorCode = errorCode;
        this.errorMessage = errorMessage;
    }

    public String getErrorCode() {
        return errorCode;
    }

    public String getErrorMessage() {
        return errorMessage;
    }
}