spring boot全局异常处理

spring boot全局异常处理

全局异常处理

public class GlobalException extends RuntimeException{

	private static final long serialVersionUID = 1L;
//	异常信息类
	private CodeMsg cm;
	
	public GlobalException(CodeMsg cm) {
		super(cm.toString());
		this.cm = cm;
	}

	public CodeMsg getCm() {
		return cm;
	}

}

拦截异常类

@ControllerAdvice
@ResponseBody
public class GlobalExceptionHandler {
//	拦截异常
	@ExceptionHandler(value=Exception.class)
	public Result<String> exceptionHandler(HttpServletRequest request, Exception e){
		e.printStackTrace();
		if(e instanceof GlobalException) {
			GlobalException ex = (GlobalException)e;
			return Result.error(ex.getCm());
		}else if(e instanceof BindException) {
			BindException ex = (BindException)e;
			List<ObjectError> errors = ex.getAllErrors();
			ObjectError error = errors.get(0);
			String msg = error.getDefaultMessage();
			return Result.error(CodeMsg.BIND_ERROR.fillArgs(msg));
		}else {
			return Result.error(CodeMsg.SERVER_ERROR);
		}
	}
}

异常信息类

public class CodeMsg {

    private int code;
    private String msg;

    //通用的错误码
    public static CodeMsg SUCCESS = new CodeMsg(0, "success");
    public static CodeMsg SERVER_ERROR = new CodeMsg(500100, "服务端异常");
    public static CodeMsg BIND_ERROR = new CodeMsg(500101, "参数校验异常：%s");

    public static CodeMsg SESSION_ERROR = new CodeMsg(500210, "Session不存在或者已经失效");
    public static CodeMsg PASSWORD_EMPTY = new CodeMsg(500211, "登录密码不能为空");
    public static CodeMsg MOBILE_EMPTY = new CodeMsg(500212, "手机号不能为空");
    public static CodeMsg MOBILE_ERROR = new CodeMsg(500213, "手机号格式错误");
    public static CodeMsg MOBILE_NOT_EXIST = new CodeMsg(500214, "手机号不存在");
    public static CodeMsg PASSWORD_ERROR = new CodeMsg(500215, "密码错误");



    private CodeMsg( ) {
    }

    private CodeMsg( int code,String msg ) {
        this.code = code;
        this.msg = msg;
    }

    public int getCode() {
        return code;
    }
    public void setCode(int code) {
        this.code = code;
    }
    public String getMsg() {
        return msg;
    }
    public void setMsg(String msg) {
        this.msg = msg;
    }

    public CodeMsg fillArgs(Object... args) {
        int code = this.code;
        String message = String.format(this.msg, args);
        return new CodeMsg(code, message);
    }

    @Override
    public String toString() {
        return "CodeMsg [code=" + code + ", msg=" + msg + "]";
    }
}