返回信息流代码如下
jsp跳转页面
function goBack(){
window.location="../user.jsp";
}
function search(){
var num = "<%= ((Users)session.getAttribute("current_user")).getuid()%>";
//document.write(currentPassword);
//document.write(document.getElementById("password").value);
if(num!=document.getElementById("number").value && num!="admin"){
alert("请输入您自己的学号或者工号!");
document.getElementById("number").focus();
return;
}
var typ="<%= (String)request.getParameter("typ")%>";
if(typ=="stu"){
window.location="finStu.do?sno="+document.getElementById("number").value;
}
else{
window.location="finTea.do?tno="+document.getElementById("number").value;
}
}
</script>
</head>
<body>
<form>
<table border="0" align="center">
<tr>
<td>请输入您的学号或者工号:</td>
<td><input name="number" type="text" id="number" size="10" maxlength="10"></td>
</tr>
</table>
<div align="center">
<input name="btnSearch" type="button" id="btnSearch" value="查询" onclick="search()">
<input name="btnBack" type="button" id="btnBack"
value="返回" onclick="goBack()" />
</div>
</form>
</body>
</html>
tea的action和form
action
public class FinteaAction extends Action{
public ActionForward execute(ActionMapping mapping, ActionForm form,
HttpServletRequest request, HttpServletResponse response) {
TeaActionForm teaActionForm = (TeaActionForm)form;
String num = teaActionForm.getNum();
Tea teacher = null;
teacher = TeaManager.getInstance().selectBynum("001");
String errorinfo="";
if(teacher==null){
errorinfo="该教师不存在";
}
else{
request.getSession().setAttribute("teainfo", teacher);
return mapping.findForward("suc");
}
request.setAttribute("errorinfo", errorinfo);
return mapping.findForward("fal");
//return super.execute(mapping, form, request, response);
}
}
form
package com.web.usermgr.forms;
import org.apache.struts.action.ActionForm;
public class TeaActionForm extends ActionForm{
private String num;//工号
public String getNum() {
return num;
}
public void setNum(String num) {
this.num = num;
}
}
我在测试中直接写得
teacher = TeaManager.getInstance().selectBynum("001");
而实际是要通过form中得到得num值来查找
teacher = TeaManager.getInstance().selectBynum(num);
但是这样写无法通过，也就是action根本没得到num的值，网上查了不少资料，没找到方法，望大牛解答
这是一条镜像帖。来源：北邮人论坛 / java / #17080同步于 2011/1/9
该镜像源已超过 30 天没有更新，可能在源站已被删除。
Java机器人发帖
求教：struts架构的jsp页面取不到form表单的值
kuqiwangzi
2011/1/9镜像同步3 回复
订阅后，新回复会通过你的通知中心匿名送达。
3 条回复
第一：action和form里的num应该是在form表单里的一项
第二： 看你这里 var num = "<%= ((Users)session.getAttribute("current_user")).getuid()%>";，num是在session里拿到的，你要先确认你的session里是否有这一项，
第三：搞不清楚你的num和number的关系，看不懂