js未定义的问题

tonnycao 2012-12-11 02:49:10
<!DOCTYPE HTML PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" style="height: 99%;"><head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>Project - CANopenNode</title>
<style type="text/css">
body{
background-color: rgb(165, 186, 221);

margin: 0px;
height: 100%;
}
table{
width: 100%;
}
td {
border: 1px solid black;
padding: 1px 0.6em 1px 0.3em;
width: 50%;
}
table div{
position: relative;
height: 2em;
margin-top: 0.3em;
}
table pre{
margin: 0px;
}
textarea{
width: 100%;
height: 10em;
}
.right{
position: absolute;
right: 0px;
}
</style>
<script type="javascript">
var editorWindowOK = false;
function getURLPath(path)
{
//Function returns absolute path based on input path. If input path is relative, it is relative to path of this html
//Input path can be one of the following (either '/' or '\' can be used):
//- http://www.example.com/example/example.html
//- file:///C:/example/example.html
//- C:/example/example.html
//- example/example.html
//- /example/example.html
//- ../example/example.html
var absloutePath;
path = path.replace(/\\/g,"/");
var i = path.indexOf(":");
if(i >= 0)
{
absloutePath = path;
if(i == 1) absloutePath = "file:///" + absloutePath;
}
else
{
absloutePath = location.href;
absloutePath = absloutePath.substring(0, absloutePath.lastIndexOf("/"));
while(path.substring(0, 3) == "../"){
path = path.substring(3);
absloutePath = absloutePath.substring(0, absloutePath.lastIndexOf("/"));
}
var hash = "/";
if(path.charAt(0) == "/") hash = "";
absloutePath = absloutePath + hash + path;
}
return absloutePath;
}

function getLocalPath(path)
{
//Function returns absolute path based on input path. If input path is relative, it is relative to path of this html
//Input path can be one of the following (either '/' or '\' can be used):
//- C:\example\example.html
//- example\example.html
//- \example\example.html
//- ..\example\example.html
path = path.replace(/\//g,"\\");
if(path.indexOf(":") >= 0) return path;

var absloutePath = location.href;
if(absloutePath.substring(0, 8) != "file:///") return "";
absloutePath = absloutePath.substring(8, absloutePath.lastIndexOf("/"));
absloutePath = absloutePath.replace(/\//g,"\\");
while(path.substring(0, 3) == "..\\")
{
path = path.substring(3);
absloutePath = absloutePath.substring(0, absloutePath.lastIndexOf("\\"));
}
var hash = "\\";
if(path.charAt(0) == "\\") hash = "";
absloutePath = absloutePath + hash + path;
return absloutePath;
}

function updateFileName(field, name){
document.getElementById(field).setAttribute("fileName", name);
}
function loadProject(name)
{
var loc = getURLPath(name);
var req = new XMLHttpRequest();
req.open('GET', loc, false);
req.send(null);
document.getElementById('textXML').value = req.responseText;
}

function updateFields()
{
var xmlText = document.getElementById("textXML");
var el = xmlText.value.substring(xmlText.value.indexOf("<file"));
var el = el.substring(0, el.indexOf("/>")+2);
var filename = ""
if(el.length){
var el = new XML(el);
fileName = el.@fileName.toString();
document.title = fileName + " - CANopenNode";
var span = document.getElementById("title");
span.replaceChild(document.createTextNode(fileName), span.firstChild);

var date = "V " + el.@fileVersion.toString() + "; Updated: " + el.@fileCreationDate.toString() + ", " +
el.@fileCreationTime.toString() + ", by " +

el.@fileCreator.toString();
span = document.getElementById("date");
span.replaceChild(document.createTextNode(date), span.firstChild);
}

//for use with firefox addon "Save Text Area 0.4.5"
//https://addons.mozilla.org/en-US/firefox/addon/1046
updateFileName("textXML", "_project.xml");
updateFileName("textHTM", fileName+".html");
updateFileName("textODH", "CO_OD.h");
updateFileName("textODC", "CO_OD.c");
updateFileName("textEDS", fileName+".eds");
updateFileName("textXDD", fileName+".xdd");

document.getElementById("iframe").src = "";
}

function openEditor(newWindow)
{
var path = document.getElementById("locEditor").value;
var loc = getURLPath(path + "/device.xul");

if(newWindow){
editorWindow = window.open(loc, '_blank',

'left=0,top=150,width=1024,height=768,resizable=yes,scrollbars=yes,location=no,status=no');
editorWindow.focus();
}
else
{
var iframe = document.getElementById("iframe");
iframe.src = loc;
editorWindow = iframe.contentWindow;
}

document.getElementById("textHTM").value = "-";
document.getElementById("textODH").value = "-";
document.getElementById("textODC").value = "-";
document.getElementById("textEDS").value = "-";
document.getElementById("textXDD").value = "-";

//verify if editor window is OK
editorWindowOK = false;
setTimeout(verifyEditorWindow, 10000);
}

function verifyEditorWindow()
{
if(editorWindowOK == false)
alert("Error with Editor!\n(Wrong location)");
}

function openAbout()
{
var path = document.getElementById("locEditor").value;
var loc = getURLPath(path + "/about.html");
var w = window.open(loc, 'About',

'left=0,top=150,height=600,width=800,resizable=yes,scrollbars=yes,location=yes,status=yes');
w.focus();
}

function receiveMessage(event)
{
//function receives a message from editor window, which is editing a project file. This event is triggered
//after editor sends some data. For more information see http://developer.mozilla.org/en/DOM/window.postMessage

//if (event.origin !== "http://example.com:8080") return; //for safety

var head = event.data.substring(0, 3); //first three characters of the message
var body = event.data.substring(3); //other text of the message

switch(head){
case "RDY": //editor was loaded
editorWindow.postMessage(document.getElementById('textXML').value, '*');
document.getElementById("fileBoxes").style.display = "none";
document.getElementById("iframe").style.height = "100%";
editorWindowOK = true;
break;
case "CLS": //editor was closed
document.getElementById("iframe").style.height = "0px";
document.getElementById("fileBoxes").style.display = "block";
break;
case "XML": //xml contents was sent
var tb = document.getElementById("textXML");
tb.value = body;
//tb.setAttribute("value", body); //faster code
updateFields();
break;
case "HTM": //html contents was sent
var tb = document.getElementById("textHTM");
tb.value = body;
//tb.setAttribute("value", body); //faster code
break;
case "ODH": //CO_OD.h contents was sent
var tb = document.getElementById("textODH");
tb.value = body;
//tb.setAttribute("value", body); //faster code
break;
case "ODC": //CO_OD.c contents was sent
var tb = document.getElementById("textODC");
tb.value = body;
//tb.setAttribute("value", body); //faster code
break;
case "EDS": //EDS contents was sent
var tb = document.getElementById("textEDS");
tb.value = body;
//tb.setAttribute("value", body); //faster code
break;
case "XDD": //XDD contents was sent
var tb = document.getElementById("textXDD");
tb.value = body;
//tb.setAttribute("value", body); //faster code
break;
default: alert("Message command was not recognized: " + head);
}
}
window.addEventListener("message", receiveMessage, false);

function viewFile(value, pre)
{
var w = window.open("", '_blank',

'left=0,top=150,width=1024,height=768,resizable=yes,scrollbars=yes,location=yes,status=yes,menubar=yes');
w.document.open();
if(pre)
{
value = value.replace(/&/g, "&");
value = value.replace(/</g, "<");
value = value.replace(/>/g, ">");
w.document.write("<pre>"+value+"</pre>");
}
else
{
w.document.write(value);
//disable anchors
var anchors = w.document.getElementsByTagName("a");
for(var i = 0; i < anchors.length; i++){
anchors[i].removeAttribute("href");
}
}
w.document.close();
}




</script>
</head>


以上是我html的全部代码，其中所有调用javasrcipt的地方，都会提示 未定义的错误，怎么回事呢。？
...全文
538 3 打赏 收藏 转发到动态 举报
写回复
用AI写文章
3 条回复
切换为时间正序
请发表友善的回复…
发表回复
tonnycao 2012-12-11
  • 打赏
  • 举报
 回复
错误就在"loadProject('_project.xml')说lpadProject为定义，在函数内部设置断点，都没有进入到这个函数里面。我把js中只留这个函数，函数就alert一下，就OK。我加入updateFields这个函数就会报未定义的错误。
ILOVE_ASPNET 2012-12-11
  • 打赏
  • 举报
 回复
editorWindow ?这个在哪定义的？ 提示这个错，你最好检查下你的代码，看有哪些方法属性没有定义的你就在使用他，JS里面有没有提示错误行？
tonnycao 2012-12-11
  • 打赏
  • 举报
 回复
<body onload="loadProject('_project.xml');"> <div id="fileBoxes" style="margin: 8px; display: block;"> <div style="padding: 0.5em;"> <span id="title" style="font-size: 1.5em; font-weight: bold;">---</span> <span id="date" style="margin-left: 2em;">---</span> <input style="margin-left: 2em; font-size: 1.3em;" value="Open Editor" onclick="openEditor(false);" type="button"> at location: <input id="locEditor" value="../Object_Dictionary_Editor" onblur="this.setAttribute('value', this.value);" type="text"> <input class="right" style="right: 1em;" value="Help" onclick="openAbout();" type="button"> </div> <table> <tbody><tr> <td> <div> <b>CANopenNode project file:</b> <input class="right" value="View source" onclick="viewFile(document.getElementById('textXML').value, true);" type="button"> </div> <pre><textarea id="textXML" fileName="_project.xml" wrap="off" onchange="updateFields();">-</textarea></pre> </td> <td> <div> <b>Documentation HTML file:</b> <input value="Preview" onclick="viewFile(document.getElementById('textHTM').value, false);" type="button"> <input class="right" value="View source" onclick="viewFile(document.getElementById('textHTM').value, true);" type="button"> </div> <textarea id="textHTM" fileName="documentation.html" wrap="off">-</textarea> </td> </tr><tr> <td> <div> <b>Source code CO_OD.h file:</b> <input class="right" value="View source" onclick="viewFile(document.getElementById('textODH').value, true);" type="button"> </div> <textarea id="textODH" fileName="CO_OD.h" wrap="off">-</textarea> </td> <td> <div> <b>Source code CO_OD.c file:</b> <input class="right" value="View source" onclick="viewFile(document.getElementById('textODC').value, true);" type="button"> </div> <textarea id="textODC" fileName="CO_OD.c" wrap="off">-</textarea> </td> </tr> <tr> <td> <div> <b>EDS specification file:</b> <input class="right" value="View source" onclick="viewFile(document.getElementById('textEDS').value, true);" type="button"> </div> <textarea id="textEDS" fileName="Electronic data sheet.eds" wrap="off">-</textarea> </td> <td> <div> <b>XDD specification file:</b> <input class="right" value="View source" onclick="viewFile(document.getElementById('textXDD').value, true);" type="button"> </div> <textarea id="textXDD" fileName="Electronic data sheet.xdd" wrap="off">-</textarea> </td> </tr> </tbody></table> <em style="text-align: center; display: block;"><a href="http://canopennode.sourceforge.net/">CANopenNode</a> Editor - project file.</em> </div> <iframe style="border: 0px none ; width: 100%; height: 0px;" src="" id="iframe"></iframe> </body></html>
json2.js json未定义的解决方案！
json2.js json.parse json未定义 的解决方案！
json2.js json.parse json未定义 的解决方案！
json2.js json.parse json未定义 的解决方案！
css文件中的样式类被覆盖，js文件中的变量未定义问题
问题原因： 为什么呢？ 因为在调用组件W的css样式时，我们自己写了css样式A，Ext组件又自带css样式B，A是我们用cls:’A’放进去。那么这个W到底是用两个样式重复的哪一个种呢？ 这就要看css样式表的引入顺序了，如果先引入自己写的，再引入Ext自带的，那么浏览器先读自己写的css样式，然后再读Ext自带的样式。结果我们的自己写的css样式就被覆盖了。 解决办法： 这样就对了。 js文件中的变量未定义问题 问题描述： readerManageMentData.js readerManageMentFunction.js html 结果： 注：filterButtonArra
json2.js，ie6、ie7下JSON未定义
json2.js，官方版本（2014-02-04） ie6、ie7下JSON.parse JSON未定义的解决方法
完美解决IE9浏览器出现的对象未定义问题
目前Window7的机器上，使用IE9浏览器的用户很多，但是IE9在兼容性上做了较严格的控制，导致很多程序在chrome，firefox，ie6,ie7,ie8上可以正常运行，在ie9上确出现了各种问题，这里要说的其中一个问题，就是对象为定义，特别是单一个页面上嵌套了多层iframe/frame的时候，往往会出现： Array对象未定义 $对象未定义 jQuery对象未定义 Json对象未定义 undefined对象未定义 *对象未定义… 这种情况，我们一开始， 1，首先当然先检查是否JS文件路径引用不对，或者是Html文件的设置编码格式不正确； 2，假如这些基本的都正常没问题，我们再
JavaScript

87,910

社区成员

224,616

社区内容

发帖
与我相关
我的任务
社区描述
Web 开发 JavaScript
社区管理员
  • JavaScript
  • 无·法
加入社区
  • 近7日
  • 近30日
  • 至今

加载中

查看更多榜单
社区公告
暂无公告

试试用AI创作助手写篇文章吧

+ 用AI写文章