Javascript 如何将 JSON 保存到本地文本文件
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How do I save JSON to local text file
提问by thatOneGuy
Say I have a javascript object that looks like this :
假设我有一个看起来像这样的 javascript 对象：
var data = {
name: "cliff",
age: "34",
name: "ted",
age: "42",
name: "bob",
age: "12"
}
var jsonData = JSON.stringify(data);
I stringify it to convert to JSON. How do I save this JSON to a local text file so I can open it, say, in Notepad etc.
我将其字符串化以转换为 JSON。如何将此 JSON 保存到本地文本文件，以便我可以在记事本等中打开它。
回答by Rafa? ?u?yński
Node.js:
节点.js：
var fs = require('fs');
fs.writeFile("test.txt", jsonData, function(err) {
if (err) {
console.log(err);
}
});
Browser (webapi):
浏览器（webapi）：
function download(content, fileName, contentType) {
var a = document.createElement("a");
var file = new Blob([content], {type: contentType});
a.href = URL.createObjectURL(file);
a.download = fileName;
a.click();
}
download(jsonData, 'json.txt', 'text/plain');
回答by aslantorret
Here is a solution on pure js. You can do it with html5 saveAs. For example this lib could be helpful: https://github.com/eligrey/FileSaver.js
Look at the demo: http://eligrey.com/demos/FileSaver.js/
P.S. There is no information about json save, but you can do it changing file type to "application/json"and format to .json
这是纯js的解决方案。您可以使用 html5 saveAs 来完成。例如，这个库可能会有所帮助：https: //github.com/eligrey/FileSaver.js
看演示：http: //eligrey.com/demos/FileSaver.js/
PS 没有关于 json 保存的信息，但是您可以将文件类型更改为"application/json"和格式为.json
回答by dabeng
It's my solution to save local data to txt file.
这是我将本地数据保存到txt文件的解决方案。
function export2txt() {
const originalData = {
members: [{
name: "cliff",
age: "34"
},
{
name: "ted",
age: "42"
},
{
name: "bob",
age: "12"
}
]
};
const a = document.createElement("a");
a.href = URL.createObjectURL(new Blob([JSON.stringify(originalData, null, 2)], {
type: "text/plain"
}));
a.setAttribute("download", "data.txt");
document.body.appendChild(a);
a.click();
document.body.removeChild(a);
}<button onclick="export2txt()">Export data to local txt file</button>