1.异步读取文件:
var fs= require(‘fs‘);
// 从文件系统中读取请求的文件内容
?????fs.readFile(pathname.substr(1), function (err, data) {
?????if (err) {
????????console.log(err);
????????// HTTP 状态码: 404 : NOT FOUND
????????// Content Type: text/plain
????????response.writeHead(404, {‘Content-Type‘: ‘text/html‘});
?????}else{ ????????
????????// HTTP 状态码: 200 : OK
????????// Content Type: text/plain
????????response.writeHead(200, {‘Content-Type‘: ‘text/html‘});
// 响应文件内容
????????response.write(data.toString());
?????}
???}
2.同步读取方法
console.log(‘--------开始读取文件--------‘); ?
?
var fs= require(‘fs‘); ?
var data = fs.readFileSync(‘itxxz.txt‘,‘utf-8‘); ?
?
console.log(data); ?
?
console.log(‘--------读取结束--------‘); ?
3.二进制读文件：
var readStream = fs.createReadStream(‘/path/to/source‘);
readStream.on(‘data‘, function(chunk) { // 当有数据流出时，写入数据
???writeStream.write(chunk);
});
readStream.on(‘end‘, function() { // 当没有数据时，关闭数据流
???writeStream.end();
});
nodejs读文件
原文地址：http://www.cnblogs.com/yu-hailong/p/7439853.html