Node.js中的两个模块Socket.io 和Express做整合的时候出现了以下的错误：
TypeError: Arguments to path.join must be strings
at f (path.js:204:15)
at Object.filter (native)
at exports.join (path.js:209:40)
at exports.send (E:\nodejs\demo\socket.io-express\node_modules\express\node_modules\connect\lib\middleware\static.js:129:20)
at ServerResponse.res.sendfile (E:\nodejs\demo\socket.io-express\node_modules\express\lib\response.js:186:3)
at io.sockets.on.socket.emit.text (E:\nodejs\demo\socket.io-express\app.js:8:6)
at callbacks (E:\nodejs\demo\socket.io-express\node_modules\express\lib\router\index.js:272:11)
at param (E:\nodejs\demo\socket.io-express\node_modules\express\lib\router\index.js:246:11)
at pass (E:\nodejs\demo\socket.io-express\node_modules\express\lib\router\index.js:253:5)
at Router._dispatch (E:\nodejs\demo\socket.io-express\node_modules\express\lib\router\index.js:280:5)
app.get('/', function(req, res){
res.sendfile(__dirname + '/index.html');
});
app.get('/', function(req, res){
res.sendfile('/index.html', {root: __dirname});
});
11 回复
嗯, 看 send 模块 (sendfile 的依赖包)
https://github.com/visionmedia/send
在win 下 你传
__dirname + '/index.html' -> E:\nodejs\demo/index.html
貌似,那里用 url 解析模块.最后解析的结果不是windows 那种路径样子…
然后到创建流的时候路径就不对了…
@ljgstudy 嗯．．． 我發現你應該在用2.0 的express connect 用的應該是1.x 根源 https://github.com/senchalabs/connect/blob/1.x/lib/middleware/static.js#L104
root = options.root ? normalize(options.root) : null
https://github.com/senchalabs/connect/blob/1.x/lib/middleware/static.js#L129
path = normalize(join(root, path));
不設定root 就是null, join(null, path) => errors
@mondwan 说的对。我刚才验证了一把，结果如下：
root = null;
path = E:\nodejs\demo\sending-nickname\index.html
然后执行
path = normalize(join(root, path));
出错，与windows路径分隔符无关！
谢谢，长知识了。。。
