weixin_33713350 2016-04-29 11:09 采纳率: 0%
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AJAX隐藏调用jsp页面

i have my index.jsp :

<%@ page pageEncoding="UTF-8"%>
<html>
    <head>
        <meta charset="UTF-8"/>
        <title>Hello</title>
    </head>
    <body>
       Hello !
       <input type="hidden" name="ip" value="" id="ip">
    <script>

        var ip = document.getElementById("ip");
        ip.value = userip;

    </script>
    </body>
</html>

I have another view.jsp which one take an argument like that :

http://localhost:8200/view/view.jsp?ip=IP_VALUE

Then when i open this link and replace IP_VALUE by anything, this value is automatically added to my database.

But now i'm trying to call hiddenly this jsp page, i mean i want that when the user open my page, my javascript variable "ip" is past to my view.jsp like :

http://localhost:8200/view/view.jsp?ip= "ip"

But i want that the user don't see that, so i don't want any redirection or form, just an AJAX hidden call of my jsp.

view.jsp is on the same folder than my index.jsp

How can i do that hiddenly ?

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1条回答 默认 最新

  • weixin_33719619 2016-04-29 11:24
    关注

    Try this:

    <%@ page pageEncoding="UTF-8"%>
<html>
    <head>
        <meta charset="UTF-8"/>
        <title>Hello</title>
    </head>
    <body>
       Hello !
       <input type="hidden" name="ip" value="" id="ip">
    <script>

        var ip = document.getElementById("ip");
        ip.value = userip;

        var xmlhttp =  new XMLHttpRequest();

        xmlhttp.open('GET', 'view.jsp?ip' + userip, true);

        xmlhttp.onreadystatechange = function() {

            if (xmlhttp.readyState == 4) {

                if(xmlhttp.status == 200) {

                    //alert(xmlhttp.responseText);
                }
            }
        };
        xmlhttp.send(null);

    </script>
    </body>
</html>

    You can send any value to any page by XMLHttpRequest object.

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