springboot 统一管理异常信息

新建ResponseEntityExceptionHandler的继承类：（依然，需要入口类扫描）

/**
 * @author sky
 * @version 1.0
 */
@ControllerAdvice
public class GlobalExceptionHandler extends ResponseEntityExceptionHandler {

    public static final String DEFAULT_ERROR_VIEW = "exception";

    @ExceptionHandler(value = Exception.class)
    @ResponseBody
    public Object handleOtherExceptions(final Exception exception, final HttpServletRequest request) {
        if(isAjaxRequest(request)) {
            return JSON.toJSONString(“这里是你需要返回的错误json信息”);
        }else{
            ModelAndView mav = new ModelAndView();
            mav.addObject("exception", exception);
            mav.addObject("url", request.getRequestURL());
            mav.setViewName(DEFAULT_ERROR_VIEW);
            return mav;
        }
    }

    /**
     * isAjaxRequest:判断请求是否为Ajax请求. <br/>
     *
     * @param request 请求对象
     * @return boolean
     * @since JDK 1.6
     */
    public boolean isAjaxRequest(HttpServletRequest request){
        String header = request.getHeader("x-requested-with");
        if (null != header && "XMLHttpRequest".endsWith(header)) {
            return true;
        }
        return false;
    }
}

这里需要注意，springboot默认读取static下的静态资源，如需要使用templates下的，需要使用thymeleaf

<dependency>
     <groupId>org.springframework.boot</groupId>
     <artifactId>spring-boot-starter-thymeleaf</artifactId>
</dependency>

exception.html

<!DOCTYPE html>
<html xmlns:th="http://www.w3.org/1999/xhtml">
<head lang="en">
    <meta charset="UTF-8" />
    <title>异常处理</title>
</head>
<body>
<h1>Error Handler</h1>
<div th:text="'请求路径：' + ${url}"></div>
<div th:text="'异常信息：' + ${exception.message}"></div>
</body>
</html>

测试异常：

@RequestMapping(value = "/", produces = "text/plain;charset=UTF-8")
    ModelAndView index(Date date) throws Exception {
        ModelAndView mav = new ModelAndView();
        mav.setViewName("demo1");
        if (date == null) {
            throw new Exception("测试异常");
        }
        return mav;
    }

springboot 统一管理异常信息

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