SprringMVC之异常处理

自定义异常类

public class CustomException extends Exception {
    public CustomException() {
        super();
    }

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

自定义异常处理类

public class HandlerCustomExceptionResolver implements HandlerExceptionResolver {
    @Override
    public ModelAndView resolveException(HttpServletRequest httpServletRequest, HttpServletResponse httpServletResponse, Object o, Exception e) {
        CustomException customException;

        if (e instanceof CustomException) {
            customException = (CustomException) e;
        } else {
            customException  = new CustomException("系统错误，请与管理员联系");
        }

        ModelAndView modelAndView = new ModelAndView();
        modelAndView.addObject("message", customException.getMessage());
        modelAndView.setViewName("error");
        return modelAndView;
    }
}

错误JSP页面

<%@ page contentType="text/html;charset=UTF-8" language="java" isELIgnored="false" %>
<html>
<head>
    <title>Error</title>
</head>
<body>
${message}
</body>
</html>

将异常处理类加入SpringMVC配置文件中

<bean class="com.ttpfx.library.HandlerCustomExceptionResolver"/>

Controller、Service、Dao等处，直接抛出异常即可。

posted @ 2021-04-16 17:24  ttpfx  阅读(25)  评论(0)  编辑  收藏  举报