javascript 文本框值到 scriptlet
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textbox value to scriptlet
提问by joanna
<form name="myForm" method="post" onsubmit="return getComment()">
<textarea id="commentarea"></textarea>
<input type="text" name="locate" value="<%=rs.getString("location")%>">
<input type="submit" value="View Comment">
</form>
function getComment(){
<% String locate=request.getParameter("locate"); %>
var location = <%= locate%>;
document.getElementById('commentarea').value=location;
return false;
}
Everytime i click View Comment, there's no value printed. I want to access locate in the scriptlet and print the value in the text area. I know this is not the best way to access it, but i need to access it in this way. Can anyone help me?
每次我点击查看评论时，都没有打印任何值。我想在 scriptlet 中访问 locate 并在文本区域中打印值。我知道这不是访问它的最佳方式，但我需要以这种方式访问它。谁能帮我？
采纳答案by Manjula
You have missed double/single quotes for the value of the location variable. If you don't need to submit the form, just use a button input element.
您错过了位置变量值的双引号/单引号。如果您不需要提交表单，只需使用按钮输入元素。
<form name="myForm" method="post">
<textarea id="commentarea"></textarea>
<input type="text" name="locate" value="<%=rs.getString("location")%>">
<input type="button" value="View Comment" onclick="getComment()">
</form>
function getComment(){
<% String locate=request.getParameter("locate"); %>
var location = "<%= locate%>";
document.getElementById('commentarea').value = location;
}
