보라코딩
스프링 예외 처리 본문
@ContollerAdvice
CommonExceptionAdvice
package com.mystudy.exception;
import org.springframework.http.HttpStatus;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.ControllerAdvice;
import org.springframework.web.bind.annotation.ExceptionHandler;
import org.springframework.web.bind.annotation.ResponseStatus;
import org.springframework.web.servlet.NoHandlerFoundException;
import lombok.extern.log4j.Log4j;
@ControllerAdvice
@Log4j
public class CommonExceptionAdvice {
@ExceptionHandler(Exception.class)
public String except(Exception ex, Model model) {
log.error("Exception ..........." + ex.getMessage());
model.addAttribute("exception", ex);
log.error(model);
return "error_page";
}
}
servlet-context.xml
<context:component-scan base-package="com.mystudy.exception" />
error_page.jsp
<%@ page language="java" contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8"%>
<%@ taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c" %>
<%@ page session="false" import="java.util.*" %>
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>Insert title here</title>
</head>
<body>
<h4><c:out value="${exception.getMessage() }"></c:out></h4>
<ul>
<c:forEach items="${exception.getStackTrace() }" var = "stack">
<li><c:out value="${stack }"></c:out></li>
</c:forEach>
</ul>
</body>
</html>
404 에러페이지
web.xml
<?xml version="1.0" encoding="UTF-8"?>
<web-app version="2.5" xmlns="http://java.sun.com/xml/ns/javaee"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://java.sun.com/xml/ns/javaee https://java.sun.com/xml/ns/javaee/web-app_2_5.xsd">
<!-- The definition of the Root Spring Container shared by all Servlets and Filters -->
<context-param>
<param-name>contextConfigLocation</param-name>
<param-value>/WEB-INF/spring/root-context.xml</param-value>
</context-param>
<!-- Creates the Spring Container shared by all Servlets and Filters -->
<listener>
<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
</listener>
<!-- Processes application requests -->
<servlet>
<servlet-name>appServlet</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<init-param>
<param-name>contextConfigLocation</param-name>
<param-value>/WEB-INF/spring/appServlet/servlet-context.xml</param-value>
</init-param>
<init-param>
<param-name>throwExceptionIfNoHandlerFound</param-name>
<param-value>true</param-value>
</init-param>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>appServlet</servlet-name>
<url-pattern>/</url-pattern>
</servlet-mapping>
</web-app>
CommonExceptionAdvice
package com.mystudy.exception;
import org.springframework.http.HttpStatus;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.ControllerAdvice;
import org.springframework.web.bind.annotation.ExceptionHandler;
import org.springframework.web.bind.annotation.ResponseStatus;
import org.springframework.web.servlet.NoHandlerFoundException;
import lombok.extern.log4j.Log4j;
@ControllerAdvice
@Log4j
public class CommonExceptionAdvice {
@ExceptionHandler(Exception.class)
public String except(Exception ex, Model model) {
log.error("Exception ..........." + ex.getMessage());
model.addAttribute("exception", ex);
log.error(model);
return "error_page";
}
@ExceptionHandler(NoHandlerFoundException.class)
@ResponseStatus(HttpStatus.NOT_FOUND)
public String handle404(NoHandlerFoundException ex) {
return "custom404";
}
}
custom404
<%@ page language="java" contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8"%>
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>Insert title here</title>
</head>
<body>
<h1>해당 URL은 존재하지 않습니다.</h1>
</body>
</html>
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