Question

我正在建立一个博客，用户可以在帖子上留言。我使用JavaScript从XML文件中读取数据并将其显示在div元素中。但是，我无法获取页面以将新注释保存到XML文件，然后根据更改的XML文件重写div内容。我知道如何编辑XML文件，但如何保存？（对不起，代码有点乱）

源代码：

的index.html：

<!DOCTYPE html>

<html lang = "en-US">

<head>

<title>Blog</title>

    <script src = "loadXML.js">

    </script>

    <script>

        function addComment1(form)

        {

        var xmlDoc = loadXMLDoc("one.xml");

        var use = form.user1.value;

        var com = form.comment1.value;

        }

    </script>

    <meta charset = "utf-8"/>

</head>

<body>

    <h1>Posts</h1>

    <br/>

    <!-- A Post -->
    <h2>Comments:</h2>

    <div>

        <p>

            <script>

                var xmlDoc = loadXMLDoc("one.xml");
                var cap = xmlDoc.getElementsByTagName("content");

                for (i = 0; i < cap.length; i ++)

                {

                    document.writeln(xmlDoc.getElementsByTagName("user")[i].firstChild.nodeValue + ":<br/>");

        document.writeln(xmlDoc.getElementsByTagName("content")[i].firstChild.nodeValue + "<br/><hr/>");


                }

            </script>

        </p>

        <form name = "form1">

            <input type = "text" name = "user1"/>

        <input type = "text" name = "comment1" />

            <input type = "submit" value = "Submit" onclick = "addComment1(this.form)"/>

        </form>

    </div>

</body>

</html>

one.xml：

<?xml version="1.0" encoding="utf-8"?>

<comment>

        <user>Gabe Rust</user>

        <content>Hello World!</content>

</comment>

loadXML.js：

function loadXMLDoc(filename)

{

if (window.XMLHttpRequest)

{

        xhttp=new XMLHttpRequest();

}

else // code for IE5 and IE6

    {

        xhttp=new ActiveXObject("Microsoft.XMLHTTP");

}

xhttp.open("GET",filename,false);

    xhttp.send();

return xhttp.responseXML;

}



function loadXMLString(txt)

{

    if (window.DOMParser)

{

parser=new DOMParser();

xmlDoc=parser.parseFromString(txt,"text/xml");

}

else // code for IE

    {

xmlDoc=new ActiveXObject("Microsoft.XMLDOM");

        xmlDoc.async=false;

xmlDoc.loadXML(txt);

}


    return xmlDoc;

}

如何使用JavaScript将HTML表单数据保存到XML文件？

0 个答案: