JavaBean.跳转页面变加法怎么处理呢
日期：2014-05-18 浏览次数：20768 次
JavaBean..跳转页面变加法怎么办呢？
package cn.ac.ict;
public class SumM{
private String sumcost;
//定义sumcost为私有变量
public SumM(){
}
//SumM属性的设置方法
public void setSumcost(String scost)
{
sumcost=scost;
}
//sumcost属性的获取方法
public String getSumcost(){
return sumcost;
}
}
这样写的一个JAVABEAN...不过有点小问题..
<%@ page language= "java " pageEncoding= "GB2312 " %>
<%@ page import= "java.sql.*,cn.ac.ict.* " %>
<jsp:useBean id= "user_1 " class = "cn.ac.ict.UserInfo " scope= "session "/>
<jsp:useBean id= "user_2 " class = "cn.ac.ict.UserInfo " scope= "session ">
</jsp:useBean>
<jsp:setProperty name= "user_2 " property= "username " value= "zhw "/>
<!DOCTYPE HTML PUBLIC "-//w3c//dtd html 4.0 transitional//en ">
<html>
<head>
<title> JavaBean的测试 </title>
</head>
<body bgcolor= "#FFFFFF ">
<form action= "cgi-bin\testcgi " method= "post ">
<p> a: <input type= "text " name= "a1 " maxlength= "25 "> </p> <br>
<p> b: <input type= "text " name= "a2 " size= "15 "> </p> <br>
<a href= "javabeantest.jsp " > <input type= "submit " value= "确认 " > </a> <br>
<%=user_1.getUsername()%> + <%=user_1.getUsername()%> = <%=( <%=user_1.getUsername()%> <%=user_1.getUsername()%> )%>
</body>
</html>
这样子为什么不能跳转过去自动运算呢？有人帮我解决下嘛.
------解决方案--------------------
因为你少写了 </form>
<input type= "submit " value= "确认 "> 只会对所在的form进行提交
package cn.ac.ict;
public class SumM{
private String sumcost;
//定义sumcost为私有变量
public SumM(){
}
//SumM属性的设置方法
public void setSumcost(String scost)
{
sumcost=scost;
}
//sumcost属性的获取方法
public String getSumcost(){
return sumcost;
}
}
这样写的一个JAVABEAN...不过有点小问题..
<%@ page language= "java " pageEncoding= "GB2312 " %>
<%@ page import= "java.sql.*,cn.ac.ict.* " %>
<jsp:useBean id= "user_1 " class = "cn.ac.ict.UserInfo " scope= "session "/>
<jsp:useBean id= "user_2 " class = "cn.ac.ict.UserInfo " scope= "session ">
</jsp:useBean>
<jsp:setProperty name= "user_2 " property= "username " value= "zhw "/>
<!DOCTYPE HTML PUBLIC "-//w3c//dtd html 4.0 transitional//en ">
<html>
<head>
<title> JavaBean的测试 </title>
</head>
<body bgcolor= "#FFFFFF ">
<form action= "cgi-bin\testcgi " method= "post ">
<p> a: <input type= "text " name= "a1 " maxlength= "25 "> </p> <br>
<p> b: <input type= "text " name= "a2 " size= "15 "> </p> <br>
<a href= "javabeantest.jsp " > <input type= "submit " value= "确认 " > </a> <br>
<%=user_1.getUsername()%> + <%=user_1.getUsername()%> = <%=( <%=user_1.getUsername()%> <%=user_1.getUsername()%> )%>
</body>
</html>
这样子为什么不能跳转过去自动运算呢？有人帮我解决下嘛.
------解决方案--------------------
因为你少写了 </form>
<input type= "submit " value= "确认 "> 只会对所在的form进行提交
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