JSPÒ³ÃæµÄ´íÎó´¦Àí
Æä´úÂëÈçÏÂ:
<%@page language="java" contentType="text/html" import="java.util.*" %>
<%@taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c"%>
<html>
<body>
<%
int a=9;
int b=0;
try{
%>
<%=(a/b)%>
<%
}catch(Exception e){
out.println("page error");//Êä³öµ½µ±Ç°Ò³Ãæ
out.println("<br>");
out.println(e.getMessage());
System.out.print(e.getMessage());//Êä³öµ½¿ØÖÆÌ¨
}
%>
<c:catch var="error_Message"> //½øÐгý0µÄ´íÎó²¶×½
<h1><%=3/0 %>3/0</h1>
</c:catch>
<c:out value="${error_Message}" />//½«²¶×½µ½µÄ´íÎóÐÅÏ¢Êä³öµ½µ±Ç°Ò³Ãæ
</body>
</html>
ÔËÐнá¹ûÈçÏÂ:
page error
/ by zero
java.lang.ArithmeticException: / by zero
ÁíÍâJSP»¹ÓÐÒ»ÖÖ´íÎóÒ³ÃæµÄÌø×ª,ÈçÏÂ:
<%@page language="java" contentType="text/html" import="java.util.*" errorPage="error.jsp" %>
¼ÓÁËÒ»¾äerrorPage="error.jsp".
error.jsp´úÂëÈçÏÂ:
<%@page language="java" contentType="text/html" isErrorPage="true" %>
<html>
<body>
<h1><%=exception.getMessage()%></h1>
</body>
</html>
´ËÒ³ÃæµÄÖØµãÊÇÔÚµÚÒ»¾äÖмÓÈëisErrorPage="true" ¾ä,ĬÈÏÇé¿öÏÂΪfalse.
µ±Ê±²âÊÔʱÈçÏ´úÂë:
<%=3/0%>,ÆäËüµÄʲô¶¼²»ÓÃд,Èç¹ûÔÚµ±Ç°Ò³ÒÑÖ¸¶¨ÁËerrorPage="error.jsp"ÏîÔò»á½øÐÐÌø×ª,Ä¿±êΪerror.jspÒ³.ÎÒÔÚ²âÊÔʱµÚÒ»´ÎÖ´ÐÐJSPÒ³ÃæÊ±ÊDZ༲»¹ýÈ¥ÁË,±¨"http 500 ÄÚ²¿·þÎñÆ÷´íÎó",Èç¹û½«ÆäÖеÄ0¸Ä³É·Ç0ÊýÔò¿Éͨ¹ý,ÔÚÖ´ÐÐÆÚ¼äÔٸĻØ0ÊÇ¿ÉÒÔÕý³£Ö´ÐеÄ,ÔÚÎÒÏëÀ´ÊÇjsp±à¼µÄÎÊÌâ°É,Ò²²»Ô¸ÒâÔÙÉîÈëÑо¿ÁË,Èç¹ûËÓа취½â¾ö,¿ÉÒÔ¸æËßÎÒ,ÏÈÐиÐлÁË!~~
»¹ÓÐÔÚweb.xmlÖеĴ¦Àí·½·¨,ÅäÖÃerror-pageÏî,ÈçÏÂÁ½Àý:
<error-page>
<error-code>500</error-code>
<location>/error.jsp</location>
</error-page>
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<%@ page import=\"java.sql.*\"%>
<html>
<body>
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