如何在jsp中使用javascript,struts标签和jsp页面变量之间互相传值-搜索墙

如何在jsp中使用javascript,struts标签和jsp页面变量之间互相传值

1楼 dilong95_95 2007-04-05 12:43:02

哪位研究过:如何在jsp中使用javascript,struts标签和jsp页面变量之间互相传值吗?

2楼 xokao 2007-04-05 13:08:03

sample:

<%String k= " ";%>

<input value= " <%=k%> ">
//传给js

var a = ' <%=k%> ';

js or jsp不能直接传给java.因为java在jsp生成页面的时候就执行完了。
除非你重新把值传会给本页，然后在用request.getParameter( " ")得到值，
or ajax也可以。

3楼 dilong95_95 2007-04-05 13:31:06

<logic:iterate id= "noticeBean " name= "noticeList ">
<c:out value= "${noticeBean.title} "/>
</logic:iterate>

我要是想将noticeBean.title的值赋值给jsp的一个变量可以实现吗?

4楼 yanhuaxie 2007-04-05 13:57:51

给你一个例子吧，根据需要改写就ok了．

<script language= "JavaScript ">
//java 值 --> js
function init() {
s2 = TestForm.elements( "auction.regCode ").selectedIndex;
if (s2 == 0) {
alert( "数据不能为空 ");
return false;
}
s2 = TestForm.elements( "auction.stockCode ").value;
if (s2==null || s2== ' ') {
alert( "数据不能为空 ");
return false;
}
return true;
}

//js --- > java
function getInfo() {
TestForm.elements( "stockType ").selectedIndex = ' ';
TestForm.elements( "stockType ").value = ' ';
TestForm.elements( "auction.startPrice ").value = 0.0;
TestForm.elements( "auction.orderVolume ").value = 0;
TestForm.elements( "auction.gage ").value = 0.0;
TestForm.elements( "auction.payDelayDays ").value = 0;
TestForm.elements( "auction.startPrice ").value = 0.0;
//pForm.getAuction().setStockCode( " ");
TestForm.elements( "auction.regCode ").value = ' ';
TestForm.operation.value= 'getInfo ';
TestForm.submit();
}

</script>

<table width= "98% " border= "0 " cellpadding= "2 " cellspacing= "1 " bgcolor= "#dbeaf5 " align= "center ">
<html:form action= "/auction/TestAction.do " method= "post ">

<tr>
<td bgcolor= "#E0EAF0 " width= "90 " nowrap > 代码 </td>
<td bgcolor= "#FFFFFF " width= "100 " nowrap >
<html:text styleClass= "input " name= "TestForm " property= "auction.stockCode " maxlength= "6 " onkeyup= "stockCodeKeyUp() "/>
</td>
<td width= "70 " bgcolor=#e0eaf0 >
<logic:equal name= "TestForm " property= "auction.appliedBy " value= " ">
<input type= "button " name= "btnGetInfo " value= "确定 " class= "btn " onclick = "getInfo(); " disabled= "true ">
</logic:equal>
<logic:equal name= "TestForm " property= "auction.appliedBy " value= "0000000000 ">
<input type= "button " name= "btnGetInfo " value= "确定 " class= "btn " onclick = "getInfo(); " disabled= "true ">
</logic:equal>
<logic:notEqual name= "TestForm " property= "auction.appliedBy " value= "0000000000 ">
<logic:notEqual name= "TestForm " property= "auction.appliedBy " value= " ">
<input type= "button " name= "btnGetInfo " value= "确定 " class= "btn " onclick = "getInfo(); " >
</logic:notEqual>
</logic:notEqual>
</td>
</tr>
</html:form>
</table>

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