|
建立文件服务:
- var http=require("http");
-
- var fs=require("fs");
-
-
- http.createServer(function(req,res){
- res.writeHead(200,{"Content-type":"text/html;charset=UTF-8","Access-Control-Allow-Origin":"*"});
- if (req.method.toLowerCase()=="post") {
- //新建一个空数组接受流的信息
- var chunks=[];
- //获取长度
- let num=0;
-
- req.on("data",function(chunk){
- chunks.push(chunk);
- num+=chunk.length;
- });
- req.on("end",function(){
- //最终流的内容本体
- var buffer=Buffer.concat(chunks,num);
- //新建数组接收出去\r\n的数据下标
- let rems=[];
- //根据\r\n分离数据和报头
- for (var i = 0; i < buffer.length; i++) {
- let v=buffer[i];
- let v2=buffer[i+1];
- // 10代表\n 13代表\r
- if (v==13&&v2==10) {
- rems.push(i)
- }
- }//for
- //获取上传图片信息
- let picmsg_1 = buffer.slice(rems[0]+2,rems[1]).toString();
- console.log(picmsg_1);
- let filename = picmsg_1.match(/filename=".*"/g)[0].split('"')[1];
- console.log(filename);
-
- //图片数据
- var nbuf = buffer.slice(rems[3]+2,rems[rems.length-2]);
- let address="./"+filename;
- //创建空文件并写入内容
- fs.writeFile(address,nbuf,function(err){
- if (err) {
- console.log(err);
- res.writeHeader(200,{
- 'content-type' : 'text/html;charset="utf-8"'
- });
- res.write("file:"+err);
- res.end();
- }else{
- console.log("创建成功")
- res.writeHeader(200,{
- 'content-type' : 'text/html;charset="utf-8"'
- });
- res.write("创建成功 file:"+address);
- res.end();
- }
- })
-
- })
-
-
- }
- }).listen(3000,"localhost")
复制代码 建立一个测试页面:
- <!DOCTYPE html>
- <html lang="en">
- <head>
- <meta charset="UTF-8">
- <title>Document</title>
- </head>
- <body>
- <form action="http://localhost:3000/" method="POST" enctype="multipart/form-data">
- <input type="file" name="file"><br/>
- <input type="submit" value="上传"/>
- </form>
- </body>
- </html>
复制代码
|
|