Struts 异常处理（二十二）
1.演示除数异常
struts.xml
<?xml version="1.0" encoding="UTF-8" ?><!DOCTYPE struts PUBLIC"-//Apache Software Foundation//DTD Struts Configuration 2.3//EN""http://struts.apache.org/dtds/struts-2.3.dtd"><struts> <!-- 定义国际化资源文件的基本名称 --> <package name="/user" extends="struts-default"> <global-results> <result name="error">/error.jsp</result> </global-results> <global-exception-mappings> <exception-mapping result="error" exception="java.lang.ArithmeticException"></exception-mapping> </global-exception-mappings> <action name="exception" method="jisuan"><result name="success">/exception.jsp</result> </action> </package></struts>
2.action.xml
package com.sh.action;import com.opensymphony.xwork2.ActionSupport;public class ExceptionAction extends ActionSupport {private Integer a;private Integer b;private Integer c;public String jisuan()throws Exception{c=a/b;return SUCCESS;}public Integer getA() {return a;}//get set}3.exception.jsp
<body> <center> <s:form action="exception" theme="simple"> <s:textfield name="a" label="" cssStyle="width:60"></s:textfield> 除以 <s:textfield name="b" label="" cssStyle="width:60"></s:textfield> 等于 <s:textfield name="c" label="" cssStyle="width:60"></s:textfield> <s:submit value="计算"/> </s:form> </center> </body>
4.error.jsp
<body> 除0异常！ </body>