如何在Node JS中读取文本文件并将其作为JSON对象返回? [英] How to read a text file and return it as a JSON object in Node JS?

问题描述

我有一个文本文件.我需要读取函数中的文件并将其作为JSON对象返回.以下引发错误"JSON中位置0处的意外令牌V".

I have a text file. I need to read the file inside a function and return it as a JSON object. The following is throwing an error "Unexpected token V in JSON at position 0" .

Server.js

fs.readfile('result.txt', 'utf8', function(err,data) {
    if(err) throw err;
    obj = JSON.parse(data);
    console.log(obj);
});

result.txt如下所示

result.txt looks like the following

VO1:10 5 2

VO1: 10 5 2

VO2:5 3 2

VO2: 5 3 2

我认为我不能直接使用JSON.parse.我该如何进行?

I think I cannot use JSON.parse directly. How do I proceed?

推荐答案

假设以下内容:

每行用换行符( \ n )

每行用:分隔，其中前面的部分是键，后面的部分是 (空格)分隔的字符串，应指示将值作为数组键.

Every line is separated by a : where the part in front of it is the key and the part behind it is a (space) separated string that should indicate the keys values as an array.

以下应适用于您的格式:

Below should work for your format:

fs.readfile('result.txt', 'utf8', function(err,data) {
    if(err) throw err;
    let obj = {};
    let splitted = data.toString().split("\n");
    for (let i = 0; i<splitted.length; i++) {
        let splitLine = splitted[i].split(":");
        obj[splitLine[0]] = splitLine[1].trim();
    }
    console.log(obj);
});

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