我试图通过 cfm 页面传递唯一的数据库 session ID,但似乎无法使其正常工作。第 1 页有记录 ID,我试图将它保存在 recordclick() 函数的 numSession 中,并将它传递到下一页,我在查询中使用它,但它不起作用。
这是我所做工作的粗略概述:
第 1 页:
<CFQUERY datasource = "database1" result = "result">
insert into user
set
blah blah
</cfquery>
<html>
<head>
<title>page1</title>
<script type="text/javascript">
function recordClick(imageid)
{
document.getElementById("numSend").value = document.getElementById("numSend").value + imageid;
document.getElementById("numSession").value = result.generated_key;
}
</script>
</head>
<body>
<FORM action="page2.cfm" method="post">
<img src="1.png" NAME="num1" onclick="recordClick(1)"
width="100px"
height="100px">
<div name="num1" id="num1"></div>
<input type="hidden" id="numSend" name="numSend" />
<input type ="hidden" id = "numSession" name ="numSession" />
<input type="submit" value="Done" />
</form>
</body>
</html>
--------------------------------------
<cfoutput>
The ID of the row I just inserted was "#numSession#"
</cfoutput>
<CFQUERY datasource = "database1">
update user
set
pin = "#numSend#"
where id= "#numSession#"
</cfquery>
最佳答案
ColdFusion 在服务器端执行,JavaScript 在客户端执行。你的 JS 不知道 result
是什么。
您需要使用 ColdFusion's ToScript()
function .
Description
Creates a JavaScript or ActionScript expression that assigns the value of a ColdFusion variable to a JavaScript or ActionScript variable. This function can convert ColdFusion strings, numbers, arrays, structures, and queries to JavaScript or ActionScript syntax that defines equivalent variables and values.
这是一个例子,取自文档:
<cfset thisString="hello world">
<script type="text/javascript" language="JavaScript">
<cfoutput>
var #ToScript(thisString, "jsVar")#;
</cfoutput>
</script>
您的代码(已更正):
function recordClick(imageid)
{
var <cfoutput>#ToScript(result.generated_key, "generated_key")#;</cfoutput>
var objNumSend = document.getElementById("numSend");
objNumSend.value = objNumSend.value + imageid;
document.getElementById("numSession").value = generated_key;
}
关于javascript - 简单的 coldfusion 将记录 id 传递给 JS 函数?,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/9415651/