jQuery 使用javascript将数据写入本地文本文件
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Writing data to a local text file with javascript
提问by Madhusudhan Dollu
I have created a procedure to write content to a text file in my local machine.
我已经创建了一个程序来将内容写入本地机器中的文本文件。
<form id="addnew">
<input type="text" class="id">
<input type="text" class="content">
<input type="submit" value="Add">
</form>
<script>
jQuery(function($) {
$('#form_addjts').submit(function(){
writeToFile({
id: $(this).find('.id').val(),
content: $(this).find('.content').val()
});
return false;
});
function writeToFile(data){
var fso = new ActiveXObject("Scripting.FileSystemObject");
var fh = fso.OpenTextFile("D:\data.txt", 8);
fh.WriteLine(data.id + ',' + data.content);
fh.Close();
}
});
</script>
This is working fine, and able to append my new data to the file.
这工作正常，并且能够将我的新数据附加到文件中。
But I want to update a particular row CONTENT based on the ID which I am passing.
I searched a lot, but could not find any.
但我想根据我传递的 ID 更新特定行 CONTENT。
我搜索了很多，但找不到任何。
How can update a particular row in the file based on the ID?
如何根据 ID 更新文件中的特定行？
Note:- I am not using any server as such. I have a a html file (contains all the functionality) which I will be running on my local machine itself.
注意：- 我没有使用任何服务器。我有一个 html 文件（包含所有功能），我将在我的本地机器上运行它。
采纳答案by akinuri
Our HTML:
我们的 HTML：
<div id="addnew">
<input type="text" id="id">
<input type="text" id="content">
<input type="button" value="Add" id="submit">
</div>
<div id="check">
<input type="text" id="input">
<input type="button" value="Search" id="search">
</div>
JS (writing to the txt file):
JS（写入txt文件）：
function writeToFile(d1, d2){
var fso = new ActiveXObject("Scripting.FileSystemObject");
var fh = fso.OpenTextFile("data.txt", 8, false, 0);
fh.WriteLine(d1 + ',' + d2);
fh.Close();
}
var submit = document.getElementById("submit");
submit.onclick = function () {
var id = document.getElementById("id").value;
var content = document.getElementById("content").value;
writeToFile(id, content);
}
checking a particular row:
检查特定行：
function readFile(){
var fso = new ActiveXObject("Scripting.FileSystemObject");
var fh = fso.OpenTextFile("data.txt", 1, false, 0);
var lines = "";
while (!fh.AtEndOfStream) {
lines += fh.ReadLine() + "\r";
}
fh.Close();
return lines;
}
var search = document.getElementById("search");
search.onclick = function () {
var input = document.getElementById("input").value;
if (input != "") {
var text = readFile();
var lines = text.split("\r");
lines.pop();
var result;
for (var i = 0; i < lines.length; i++) {
if (lines[i].match(new RegExp(input))) {
result = "Found: " + lines[i].split(",")[1];
}
}
if (result) { alert(result); }
else { alert(input + " not found!"); }
}
}
Put these inside a .htafile and run it. Tested on W7, IE11. It's working. Also if you want me to explain what's going on, say so.
将这些放在一个.hta文件中并运行它。在 W7、IE11 上测试。它正在工作。另外，如果您想让我解释发生了什么，请说出来。
