SpringMVC總結之異常處理的三種方式
阿新 • • 發佈：2018-12-22
目錄
1.使用Spring MVC提供的簡單異常處理器SimpleMappingExceptionResolver
2.實現Spring的異常處理介面HandlerExceptionResolver 自定義自己的異常處理器
1.使用Spring MVC提供的簡單異常處理器SimpleMappingExceptionResolver
1.1 在springmvc配置中配置：
<!-- 總錯誤處理--> <bean id="exceptionResolver" class="org.springframework.web.servlet.handler.SimpleMappingExceptionResolver"> <property name="defaultErrorView"> <value>/error/error</value> </property> <property name="defaultStatusCode"> <value>500</value> </property> <property name="warnLogCategory"> <value>org.springframework.web.servlet.handler.SimpleMappingExceptionResolver</value> </property> </bean> [xml] view plaincopy <!-- 總錯誤處理--> <bean id="exceptionResolver" class="org.springframework.web.servlet.handler.SimpleMappingExceptionResolver"> <property name="defaultErrorView"> <value>/error/error</value> </property> <property name="defaultStatusCode"> <value>500</value> </property> <property name="warnLogCategory"> <value>org.springframework.web.servlet.handler.SimpleMappingExceptionResolver</value> </property> </bean>
1.2 顯示錯誤的jsp頁面：
<%@ page language="java" contentType="text/html; charset=GBK" pageEncoding="GBK"%> <%@ page import="java.lang.Exception"%> <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> <html> <head> <meta http-equiv="Content-Type" content="text/html; charset=GBK"> <title>錯誤頁面</title> </head> <body> <h1>出錯了</h1> <% Exception e = (Exception)request.getAttribute("exception"); out.print(e.getMessage()); %> </body> </html> [html] view plaincopy <%@ page language="java" contentType="text/html; charset=GBK" pageEncoding="GBK"%> <%@ page import="java.lang.Exception"%> <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> <html> <head> <meta http-equiv="Content-Type" content="text/html; charset=GBK"> <title>錯誤頁面</title> </head> <body> <h1>出錯了</h1> <% Exception e = (Exception)request.getAttribute("exception"); out.print(e.getMessage()); %> </body> </html>
2.實現Spring的異常處理介面HandlerExceptionResolver 自定義自己的異常處理器
@Component public class ExceptionTest implements HandlerExceptionResolver{ /** * TODO 簡單描述該方法的實現功能（可選）. * @see org.springframework.web.servlet.HandlerExceptionResolver#resolveException(javax.servlet.http.HttpServletRequest, javax.servlet.http.HttpServletResponse, java.lang.Object, java.lang.Exception) */ public ModelAndView resolveException(HttpServletRequest request, HttpServletResponse response, Object handler, Exception ex) { System.out.println("This is exception handler method!"); return null; } }
3.使用@ExceptionHandler註解實現異常處理
@Controller
public class GlobalController {
/**
* 用於處理異常的
* @return
*/
@ExceptionHandler({MyException.class})
public String exception(MyException e) {
System.out.println(e.getMessage());
e.printStackTrace();
return "exception";
}
@RequestMapping("test")
public void test() {
throw new MyException("出錯了！");
}
}