@RestControllerAdvice
public class GlobalControllerAdivice {
    private static final Logger log = LoggerFactory.getLogger(GlobalControllerAdivice.class);
    @InitBinder
    public void dataBind(WebDataBinder binder) {
        // 構(gòu)造方法中 boolean 參數(shù)含義為如果是空白字符串，是否轉(zhuǎn)換為 null
        // 即如果為 true，那么 " " 會(huì)被轉(zhuǎn)換為 null，否者為""
        binder.registerCustomEditor(String.class, new StringTrimmerEditor(true));
    }
    /**
     * 權(quán)限碼異常
     */
    @ExceptionHandler(NotPermissionException.class)
    public AjaxResult handleNotPermissionException(NotPermissionException e, HttpServletRequest request) {
        String requestURI = request.getRequestURI();
        log.error("請(qǐng)求地址'{}',權(quán)限碼校驗(yàn)失敗'{}'", requestURI, e.getMessage());
        return AjaxResult.error(HttpStatus.FORBIDDEN, "沒(méi)有訪問(wèn)權(quán)限，請(qǐng)聯(lián)系管理員授權(quán)");
    }
    // 全局?jǐn)?shù)據(jù)綁定
    // 應(yīng)用到所有@RequestMapping注解方法
    // 此處將鍵值對(duì)添加到全局，注解了@RequestMapping的方法都可以獲得此鍵值對(duì)
    @ModelAttribute
    public void addUser(Model model) {
        model.addAttribute("msg", "此處將鍵值對(duì)添加到全局，注解了@RequestMapping的方法都可以獲得此鍵值對(duì)");
    }
}

@RestControllerAdvice(basePackages={"com.alibaba"})
@Slf4j
public class ExceptionHandlerAdvice {    
    @ExceptionHandler(Exception.class)    
    public String handleException(Exception e) {    
        return "error";
    }   
} 

@RestControllerAdvice(basePackageClasses={TestController.class})
@Slf4j
public class ExceptionHandlerAdvice {
    @ExceptionHandler(Exception.class)    
    public String handleException(Exception e) {    
        return "error";
    } 
}  

@RestControllerAdvice(assignableTypes={TestController.class})
@Slf4j
public class ExceptionHandlerAdvice {
    @ExceptionHandler(Exception.class)    
    public String handleException(Exception e) {    
        return "error";
    } 
}  

@ControllerAdvice(annotations = {TestAnnotation.class})
@Slf4j
public class ExceptionHandlerAdvice {
    @ExceptionHandler(Exception.class)    
    public String handleException(Exception e) {    
        return "error";
    } 
} 

/**
 * 返回狀態(tài)碼
 * 
 * @author
 */
public class HttpStatus
{
    /**
     * 操作成功
     */
    public static final int SUCCESS = 200;
    /**
     * 對(duì)象創(chuàng)建成功
     */
    public static final int CREATED = 201;
    /**
     * 請(qǐng)求已經(jīng)被接受
     */
    public static final int ACCEPTED = 202;
    /**
     * 操作已經(jīng)執(zhí)行成功，但是沒(méi)有返回?cái)?shù)據(jù)
     */
    public static final int NO_CONTENT = 204;
    /**
     * 資源已被移除
     */
    public static final int MOVED_PERM = 301;
    /**
     * 重定向
     */
    public static final int SEE_OTHER = 303;
    /**
     * 資源沒(méi)有被修改
     */
    public static final int NOT_MODIFIED = 304;
    /**
     * 參數(shù)列表錯(cuò)誤（缺少，格式不匹配）
     */
    public static final int BAD_REQUEST = 400;
    /**
     * 未授權(quán)
     */
    public static final int UNAUTHORIZED = 401;
    /**
     * 訪問(wèn)受限，授權(quán)過(guò)期
     */
    public static final int FORBIDDEN = 403;
    /**
     * 資源，服務(wù)未找到
     */
    public static final int NOT_FOUND = 404;
    /**
     * 不允許的http方法
     */
    public static final int BAD_METHOD = 405;
    /**
     * 資源沖突，或者資源被鎖
     */
    public static final int CONFLICT = 409;
    /**
     * 不支持的數(shù)據(jù)，媒體類型
     */
    public static final int UNSUPPORTED_TYPE = 415;
    /**
     * 系統(tǒng)內(nèi)部錯(cuò)誤
     */
    public static final int ERROR = 500;
    /**
     * 接口未實(shí)現(xiàn)
     */
    public static final int NOT_IMPLEMENTED = 501;
}

/**
 * 未能通過(guò)的權(quán)限認(rèn)證異常
 * 
 * @author
 */
public class NotPermissionException extends RuntimeException
{
    private static final long serialVersionUID = 1L;
    public NotPermissionException(String permission)
    {
        super(permission);
    }
    public NotPermissionException(String[] permissions)
    {
        super(StringUtils.join(permissions, ","));
    }
}

/**
	 * 驗(yàn)證用戶是否具備某權(quán)限, 如果驗(yàn)證未通過(guò)，則拋出異常: NotPermissionException
	 * 
	 * @param permission 權(quán)限字符串
	 * @return 用戶是否具備某權(quán)限
	 */
	public void checkPermi(String permission) {
		if (!hasPermi(getPermiList(), permission)) {
			throw new NotPermissionException(permission);
		}
	}

/**
 * 全局異常處理器
 * 
 * @author
 */
@RestControllerAdvice
public class GlobalExceptionHandler {
	private static final Logger log = LoggerFactory.getLogger(GlobalExceptionHandler.class);
	/**
	 * 權(quán)限碼異常
	 */
	@ExceptionHandler(NotPermissionException.class)
	public AjaxResult handleNotPermissionException(NotPermissionException e, HttpServletRequest request) {
		String requestURI = request.getRequestURI();
		log.error("請(qǐng)求地址'{}',權(quán)限碼校驗(yàn)失敗'{}'", requestURI, e.getMessage());
		return AjaxResult.error(HttpStatus.FORBIDDEN, "沒(méi)有訪問(wèn)權(quán)限，請(qǐng)聯(lián)系管理員授權(quán)");
	}
}

@InitBinder
private void initBinder(WebDataBinder binder) {
	// 可用于自定義參數(shù)校驗(yàn)，然后通過(guò)addValidators來(lái)進(jìn)行綁定controller
    binder.addValidators(userValidator);
    // 可用于注冊(cè) 屬性編譯器
    binder.registerCustomEditor(String.class,new StringTrimmerEditor(true));
}