在Node.js中读取文件 [英] Read a file in Node.js

问题描述

我对在Node.js中读取文件感到很困惑.

I'm quite puzzled with reading files in Node.js.

fs.open('./start.html', 'r', function(err, fileToRead){
    if (!err){
        fs.readFile(fileToRead, {encoding: 'utf-8'}, function(err,data){
            if (!err){
            console.log('received data: ' + data);
            response.writeHead(200, {'Content-Type': 'text/html'});
            response.write(data);
            response.end();
            }else{
                console.log(err);
            }
        });
    }else{
        console.log(err);
    }
});

文件start.html与尝试打开和读取文件的文件位于同一目录中.

File start.html is in the same directory with file that tries to open and read it.

但是，在控制台中，我得到了:

However, in the console I get:

{[错误:ENOENT，打开'./start.html']错误号:34，代码:'ENOENT'，路径:'./start.html'}

{ [Error: ENOENT, open './start.html'] errno: 34, code: 'ENOENT', path: './start.html' }

有什么想法吗?

推荐答案

使用path.join(__dirname, '/start.html');

var fs = require('fs'),
    path = require('path'),    
    filePath = path.join(__dirname, 'start.html');

fs.readFile(filePath, {encoding: 'utf-8'}, function(err,data){
    if (!err) {
        console.log('received data: ' + data);
        response.writeHead(200, {'Content-Type': 'text/html'});
        response.write(data);
        response.end();
    } else {
        console.log(err);
    }
});

感谢dc5.

这篇关于在Node.js中读取文件的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！