HTML - 从 javascript 中的 URL 位置读取 .txt 文件
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HTML - read .txt file from URL location in javascript
提问by Simon
I want to read a .txt file an URL location, lets say from http://www.puzzlers.org/pub/wordlists/pocket.txtand process its content on my page.
我想读取一个 .txt 文件的 URL 位置，比如说来自http://www.puzzlers.org/pub/wordlists/pocket.txt并在我的页面上处理它的内容。
Can you point me out some tutorials or some basic code on how to do this in javascript?
你能指出一些关于如何在 javascript 中执行此操作的教程或一些基本代码吗？
I have a basic HTML code where I have some tables and I want to populate them with text from a .txt from a given URL location, but I do not know how to read the data from that location.
我有一个基本的 HTML 代码，其中有一些表格，我想用来自给定 URL 位置的 .txt 中的文本填充它们，但我不知道如何从该位置读取数据。
<html>
<head>
<title>Pseudoganglia Interface</title>
<!-- CSS goes in the document HEAD or added to your external stylesheet -->
<style type="text/css">
table.gridtable {
font-family: verdana,arial,sans-serif;
font-size:11px;
color:#333333;
border-width: 1px;
border-color: #666666;
border-collapse: collapse;
}
table.gridtable th {
border-width: 1px;
padding: 8px;
border-style: solid;
border-color: #666666;
background-color: #dedede;
}
table.gridtable td {
border-width: 1px;
padding: 8px;
border-style: solid;
border-color: #666666;
background-color: #ffffff;
}
</style>
<!-- Table goes in the document BODY -->
<script>
function getText()
{
// read text from URL location
}
function populateTables() {
var tableHP = document.getElementById("tHP");
// Create an empty <tr> element and add it to the 1st position of the table:
var row = tableHP.insertRow(tableHP.rows.length);
// Insert new cells (<td> elements) at the 1st and 2nd position of the "new" <tr> element:
var cell1 = row.insertCell(0);
var cell2 = row.insertCell(1);
// Add some text to the new cells:
cell1.innerHTML = "NEW CELL1";
cell2.innerHTML = "NEW CELL2";
}
</script>
</head>
<body onload="populateTables()">
<table class="gridtable" id="tHP">
<tr>
<th colspan=2>HP</th>
</tr>
<tr>
<td># SN</td>
<td>% of used RAM</td>
</tr>
</table>
<br>
<table class="gridtable" id="tIBM">
<tr>
<th colspan=2>IBM</th>
</tr>
<tr>
<td># CN</td>
<td>% of used RAM</td>
</tr>
</table>
</body>
</html>
回答by RomanPerekhrest
this code may help you:
此代码可以帮助您：
function getText(){
// read text from URL location
var request = new XMLHttpRequest();
request.open('GET', 'http://www.puzzlers.org/pub/wordlists/pocket.txt', true);
request.send(null);
request.onreadystatechange = function () {
if (request.readyState === 4 && request.status === 200) {
var type = request.getResponseHeader('Content-Type');
if (type.indexOf("text") !== 1) {
return request.responseText;
}
}
}
}
function populateTables(){
var outer_text = getText();
outer_text = outer_text.split('\n'); // you can adjust the manner of parsing the received file (regexp)
var tableHP = document.getElementById("tHP");
// Create an empty <tr> element and add it to the 1st position of the table:
var row = tableHP.insertRow(tableHP.rows.length);
// Insert new cells (<td> elements) at the 1st and 2nd position of the "new" <tr> element:
var cell1 = row.insertCell(0);
var cell2 = row.insertCell(1);
// Add some text to the new cells:
cell1.innerHTML = outer_text[0];
cell2.innerHTML = outer_text[1];
}