如何通过JavaScript设置输入隐藏字段的值? [英] How to set the value of a input hidden field through JavaScript?

问题描述

我正在尝试调用 resetyear 函数，并且该函数也被调用，但是流程在 alert("over")处停止.它不会将其控制权转移给 resetmaster .

I am trying to call the resetyear function and it's getting called also, but the flow stops at alert("over"). It doesn't transfer its control to resetmaster.

    String flag = "";
    flag = (String) session.getAttribute("flag");
    System.out.println("flag = " + flag);
    if (flag == null) {
        flag = "";
    }
    if (flag.equals("yes")) {
%>   
<script>
   
   alert(1);
  // resetyear();
    dontreset();
    //document.getElementById("checkyear").value = "1";
    //alert(document.getElementById("checkyear").value);
    
</script>
<%} else if(flag.equals("no"))
    {%>
<script>
    alert(2);
    //document.getElementById("checkyear").value = "2";
    //alert(document.getElementById("checkyear").value);
    resetyear();
</script>
<%}else{}%>


function resetyear(){

if(confirm("DO YOU WANT TO RESET THE YEAR?"))
{
    alert("hello");
    //document.forms['indexform'].action = "resetmaster";
    //alert(document.forms['indexform'].action);
    //document.forms['indexform'].submit();  
    alert("over");
    form.action = "resetmaster";
    form.submit();
    alert(1);
}

推荐答案

对我来说有效:

document.getElementById("checkyear").value = "1";
alert(document.getElementById("checkyear").value);

http://jsfiddle.net/zKNqg/

也许您的JS没有执行，您需要在其周围添加一个function(){}.

Maybe your JS is not executed and you need to add a function() {} around it all.

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