我有以下网页，当我从本地计算机在浏览器中查看时，它的显示完全符合我的预期。但是，将该页面复制到我在服务器上的文件存储（连同它所需的所有支持文件），并通过浏览到它所在的 URL 从服务器查看它后，我发现它没有显示在同一就像从我的本地计算机上查看它一样。
我的页面是：
<!DOCTYPE HTML>
<html>
<head>
<style>
body {
margin: 0px;
padding: 0px;
}
canvas{
border: 1px solid #9C9898;
background:#F5F5F5;
}
</style>
<div id="container"></div>
<script src="http://www.html5canvastutorials.com/libraries/kinetic-v4.1.2.js"></script>
<script src="drawDescriptionBoxes.js"></script>
<script>
/*Add the game elements' global variables */
var currentLevel = 1;
var totalLevels = 3;
var currentScore = 0;
var currentScorePositionX = 950;
var currentScorePositionY = 10;
/*Add code to draw images to random locations here */
var imageX = Math.floor(Math.random()*950);
var imageY = Math.floor(Math.random()*450);
var stage = new Kinetic.Stage({
container: "container",
width: 1000,
height: 500
});
var imagesLayer = new Kinetic.Layer();
var canvas = imagesLayer.getCanvas();
var context = canvas.getContext("2d");
console.log("Foo ");
function loadImages(sources, callback){
var imagesDir = "";
var images = {};
var loadedImages = 0;
var numImages = 0;
//console.log("length " + sources.length);
for (var src in sources){
numImages++;
}
//console.log("Num Images " + numImages);
var index=0;
console.log("length " + sources.length);
for (index=0;index < numImages ;index++){
console.log(index);
images[index] = new Image();
images[index].src = sources[index];
console.log("Adding " + sources[index]);
callback(images[index]);
console.log("images array length = " + images.length);
}
stage.add(imagesLayer); // should only be added once!!
}
function isNearDescriptionBox(itemImage, descriptionBox){
var ii = itemImage;
var db = descriptionBox;
if(ii.attrs.x > db.x - 20 && ii.attrs.x < db.x + 20 && ii.attrs.y > db.y - 20 && ii.attrs.y < db.y +20){
return true;
}else{
return false;
}
}
/* This function draws the game elements */
function drawGameElements(){
/* Draw a line for the 'score bar'. */
context.moveTo(0, 25);
context.lineTo(1000, 25);
context.stroke();
/* Draw current level/ total levels on the left, and current score on the right. */
context.font = "11pt Calibri"; /* Text font & size */
context.strokeStyle = "black"; /* Font colour */
context.strokeText(currentLevel + "/" + totalLevels, 10, 15);
context.strokeText(currentScore, 750, 15);
}
function initStage(images){
var stage = new Kinetic.Stage({
container: "container",
width: 1000,
height: 500
});
var descriptionLayer = new Kinetic.Layer();
//var imagesLayer = new Kinetic.Layer();
var allImages = [];
var currentScore = 0;
/*Draw the description boxes */
}
function drawImage(imageObj) {
//var layer = new Kinetic.Layer();
var canvasImage = new Kinetic.Image({
image: imageObj,
width: 50,
height: 50,
// puts the image in teh middle of the canvas
x: stage.getWidth() / 2 - 50 / 2,
y: stage.getHeight() / 2 - 50 / 2,
draggable: true
});
// add cursor styling
canvasImage.on('mouseover', function() {
document.body.style.cursor = 'pointer';
});
canvasImage.on('mouseout', function() {
document.body.style.cursor = 'default';
});
imagesLayer.add(canvasImage);
}
/*This code loads the images to the canvas when the browser window loads */
window.onload = function(){
var sources = {};
sources[0] = document.getElementById("building").src,
sources[1] = document.getElementById("chair").src,
sources[2] = document.getElementById("drink").src,
sources[3] = document.getElementById("food").src,
sources[4] = document.getElementById("fridge").src,
sources[5] = document.getElementById("land").src,
sources[6] = document.getElementById("money").src,
sources[7] = document.getElementById("oven").src,
sources[8] = document.getElementById("table").src,
sources[9] = document.getElementById("van").src,
sources[10] = document.getElementById("burger").src,
sources[11] = document.getElementById("chips").src,
sources[12] = document.getElementById("drink").src,
sources[13] = document.getElementById("franchiseFee").src,
sources[14] = document.getElementById("wages").src,
sources[15] = document.getElementById("admin").src,
sources[16] = document.getElementById("cleaners").src,
sources[17] = document.getElementById("electricity").src,
sources[18] = document.getElementById("insurance").src,
sources[19] = document.getElementById("manager").src,
sources[20] = document.getElementById("rates").src,
sources[21] = document.getElementById("training").src,
sources[22] = document.getElementById("water").src,
sources[23] = document.getElementById("burger").src,
sources[24] = document.getElementById("chips").src,
sources[25] = document.getElementById("drink").src,
sources[26] = document.getElementById("creditors").src,
sources[27] = document.getElementById("electricity").src,
sources[28] = document.getElementById("food").src,
sources[29] = document.getElementById("hirePurchase").src,
sources[30] = document.getElementById("loan").src,
sources[31] = document.getElementById("overdraft").src,
sources[32] = document.getElementById("payeTax").src,
sources[33] = document.getElementById("tax").src
loadImages(sources, drawImage);
drawGameElements();
drawDescriptionBoxes();
};
</script>
</head>
<body>
<section hidden>
<img id="startButton" src="images/startButton.png" alt="Start Button" width="179" height="180" href="javascript:drawLevelOneElements();"/>
<img id="box" src="images/box.png" alt="box.png" alt="Description Box" width="100" height="50" />
<img id="building" src="images/assets/building.png" alt="Asset" />
<img id="chair" src="images/assets/chair.gif" alt="Asset" />
<img id="drink" src="images/assets/drink.jpg" alt="Asset" />
<img id="food" src = "images/assets/food.gif" alt="Asset"/>
<img id="fridge" src = "images/assets/fridge.png" alt="Asset"/>
<img id="land" src = "images/assets/land.jpg" alt="Asset"/>
<img id="money" src = "images/assets/money.jpg" alt="Asset"/>
<img id="oven" src = "images/assets/oven.jpg" alt="Asset"/>
<img id="table" src = "images/assets/table.gif" alt="Asset"/>
<img id="van" src = "images/assets/van.jpg" alt="Asset"/>
<img id="burger" src = "images/expenses/direct/burger.png" alt="Direct Expense"/>
<img id="chips" src = "images/expenses/direct/chips.png" alt="Direct Expense"/>
<img id="drink" src = "images/expenses/direct/drink.jpg" alt="Direct Expense"/>
<img id="franchiseFee" src = "images/expenses/direct/franchiseFee.jpg" alt="Direct Expense"/>
<img id="wages" src = "images/expenses/direct/wages.jpg" alt="Direct Expense"/>
<img id="admin" src = "images/expenses/indirect/admin.jpg" alt="Indirect Expense"/>
<img id="cleaners" src = "images/expenses/indirect/cleaners.gif" alt="Indirect Expense"/>
<img id="electricity" src = "images/expenses/indirect/electricity.gif" alt="Indirect Expense"/>
<img id="insurance" src = "images/expenses/indirect/insurance.jpg" alt="Indirect Expense"/>
<img id="manager" src = "images/expenses/indirect/manager.jpg" alt="Indirect Expense"/>
<img id="rates" src = "images/expenses/indirect/rates.jpg" alt="Indirect Expense"/>
<img id="training" src = "images/expenses/indirect/training.gif" alt="Indirect Expense"/>
<img id="water" src = "images/expenses/indirect/water.gif" alt="Indirect Expense"/>
<img id="burger" src = "images/income/burger.png" alt="Income"/>
<img id="chips" src = "images/income/chips.png" alt="Income"/>
<img id="drink" src = "images/income/drink.jpg" alt="Income"/>
<img id="creditors" src = "images/liabilities/creditors.gif" alt="Liability"/>
<img id="electricity" src = "images/liabilities/electricity.png" alt="Liability"/>
<img id="food" src = "images/liabilities/food.jpg" alt="Liability"/>
<img id="hirePurchase" src = "images/liabilities/hirePurchase.jpg" alt="Liability"/>
<img id="loan" src = "images/liabilities/loan.png" alt="Liability"/>
<img id="overdraft" src = "images/liabilities/overdraft.jpg" alt="Liability"/>
<img id="payeTax" src = "images/liabilities/payeTax.jpg" alt="Liability"/>
<img id="tax" src = "images/liabilities/tax.jpg" alt="Liability"/>
</section>
</body>
</html>
当我在本地查看它时，它会显示一个画布，其中包含四个“描述框”，这些“描述框”由页面上的 JavaScript 调用的以下函数绘制（尽管该函数本身实际上位于单独的 JS 文件中）：
CanvasRenderingContext2D.prototype.drawDescriptionArea = function(x, y, width, height, radius, stroke){
if(typeof stroke == "undefined" ){
stroke = true;
}
if(typeof radius === "undefined"){
radius = 5;
}
this.beginPath();
this.moveTo(x + radius, y);
this.lineTo(x + width - radius, y);
this.quadraticCurveTo(x + width, y, x + width, y + radius);
this.lineTo(x + width, y + height - radius);
this.quadraticCurveTo(x + width, y + height, x + width - radius, y + height);
this.lineTo(x + radius, y + height);
this.quadraticCurveTo(x, y + height, x, y + height - radius);
this.lineTo(x, y + radius);
this.quadraticCurveTo(x, y, x + radius, y);
this.closePath();
if(stroke){
context.stroke();
}
}
context.drawDescriptionArea(70, 400, 120, 70);
context.font = '25pt Calibri';
context.strokeText('Asset', 90, 440);
context.drawDescriptionArea(300, 400, 120, 70);
context.strokeText('Liability', 310, 440);
context.drawDescriptionArea(540, 400, 120, 70);
context.strokeText('Income', 550, 440);
context.drawDescriptionArea(750, 400, 180, 70);
context.strokeText('Expenditure', 760, 440);
但是，当我使用它所在的 URL 从服务器查看它时，由于某种原因，描述框没有显示在画布上，我不明白为什么，因为我已将所有内容从本地计算机复制到服务器，所以它应该都在那里。
有人有想法么？