springboot 全局异常处理

1.定义一个controller 编写两个方法一个用于抛出页面异常，另外一个用于抛出json异常

@Controller
public class HelloController {
	
	@Autowired
	private BlogProperties blogProperties;
	
	@RequestMapping("/test")
	public String hello() throws Exception{
		System.out.println("=============exception:"+blogProperties.getName());
		throw new Exception("发生错误");
	}

	@RequestMapping("/json")
	public String json()throws MyException {
		throw new MyException("发生错误2");
	}
}

2.定义myException 并且编写全局异常处理类

public class MyException extends Exception{

	public MyException(String message) {
        super(message);
    }
}


@ControllerAdvice
public class GlobalExceptionHandler {
	
	public static final String DEFAULT_ERROR_VIEW = "error";

	@ExceptionHandler(value=Exception.class)
	public ModelAndView defaultErrorHandler(HttpServletRequest request, Exception e)throws Exception {
		ModelAndView modelAndView = new ModelAndView();
		modelAndView.addObject("exception", e);
		modelAndView.addObject("url", request.getRequestURL());
		modelAndView.setViewName(DEFAULT_ERROR_VIEW);
		return modelAndView;
	}
	
    @ExceptionHandler(value = MyException.class)
    @ResponseBody
    public ErrorInfo<String> jsonErrorHandler(HttpServletRequest req, MyException e) throws Exception {
        ErrorInfo<String> r = new ErrorInfo<>();
        r.setMessage(e.getMessage());
        r.setCode(ErrorInfo.ERROR);
        r.setData("Some Data");
        r.setUrl(req.getRequestURL().toString());
        return r;
    }
}



public class ErrorInfo<T> {

	public static final Integer OK = 0;
    public static final Integer ERROR = 100;

    private Integer code;
    private String message;
    private String url;
    private T data;
}

测试页面：