【解决】Node JS Error: ENOENT

 The Node Beginner Book

书中的实例代码当上传图片时会报Error: ENOENT, 原因:图片默认会选择系统的缓存文件夹下,在windows下无权访问C盘,所以就报错了。。

解决方法:只需要指定图片存放位置,在这之前要在指定的文件下手工创建tmp文件夹

具体改动如下(红色标注为改动内容):

upload.js

 1 var form = new formidable.IncomingForm();
 2     form.uploadDir = "tmp";
 3     form.parse(req, function(err, fields, files) {
 4 
 5       console.log(files.upload.path);
 6     try{
 7         fs.renameSync(files.upload.path, "tmp/test.png");
 8     }catch(e){
 9         console.log(e);
10     }
11 
12       res.writeHead(200, {'content-type': 'text/plain'});
13       res.write('received upload:\n\n');
14       res.end(sys.inspect({fields: fields, files: files}));
15     });

当然,文件开头不要忘记引入fs模块 fs = require('fs')

requesthandle.js

function show(response, postData) {
  console.log("Request handler 'show' was called.");
  fs.readFile("tmp/test.png", "binary", function(error, file) {
    if(error) {
      response.writeHead(500, {"Content-Type": "text/plain"});
      response.write(error + "\n");
      response.end();
    } else {
      response.writeHead(200, {"Content-Type": "image/png"});
      response.write(file, "binary");
      response.end();
    }
  });
}

本人也刚刚开始研究nodejs,昨晚看了下这本书,上传搞了好久,在网上也google好久,仍不得其解,写出来以备忘,与大家共享,希望共同进步!

git地址:https://github.com/finderL/myapp

有误之处还请不吝赐教!

posted @ 2013-07-23 15:13  刘贝  阅读(3236)  评论(0编辑  收藏  举报