Javascript 不使用express将图像上载到node.js中的服务器
下面是我试图获取上传文件的服务器代码。然而，Javascript 不使用express将图像上载到node.js中的服务器,javascript,node.js,Javascript,Node.js,下面是我试图获取上传文件的服务器代码。然而，fs.writeFile不起作用，所以我假设我做错了什么 server.on('request', function(request, response){ .... if((pathArray[1] == "photos") && (pathArray[2] = "new")){ var imagesPath = './images'; upload
fs.writeFile server.on('request', function(request, response){
....
if((pathArray[1] == "photos") && (pathArray[2] = "new")){
var imagesPath = './images';
uploadPhoto(response, imagesPath);
}
else if(path == '/document/save'){
console.log("path: " + path);
var body = '';
request.on('data', function(data){
body += data;
});
request.on('end', function() {
var note = querystring.parse(body);
console.log("Body data: " + note);
var newPath = "./images/myimage.jpg";
fs.writeFile( newPath, body, function (err) {
if (err) throw err;
});
});
}
function uploadPhoto(response, imageLoc){
response.writeHead(200, {
'Content-Type': 'text/html'
});
response.write('<html><body>');
response.write('<div class="uploadFile">');
response.write('<link rel="stylesheet" type="text/css" href="style.css">');
response.write('<form action =/document/save>');
response.write('<method = "post">');
response.write('<enctype="multipart/form-data">');
response.write('<label for="name">Upload new photo</label>');
response.write('<br></br>');
response.write('<input type="file" name="name">');
response.write('<br></br>');
response.write('<button type="submit">Upload</button>');
response.write('</div>');
response.write('</body></html>');
response.write('</form>');
response.end();
}
函数上传照片（响应，imageLoc）{
书面答复（200{
“内容类型”：“文本/html”
});
回答。写（“”）；
回答。写（“”）；
回答。写（“”）；
回答。写（“”）；
回答。写（“”）；
回答。写（“”）；
回复。写（‘上传新照片’）；
响应。写入（“
”）；
回答。写（“”）；
响应。写入（“
”）；
响应。写入（“上传”）；
回答。写（“”）；
回答。写（“”）；
回答。写（“”）；
response.end（）；
}
如何在没有express的情况下使用
node.jsfs.writeFile------WebKitFormBoundary9BhXe3lt2UddCDz9
Content-Disposition: form-data; name="document"; filename="globeSS.jpg"
Content-Type: image/jpeg
ÿØÿà JFIF d d ÿì Ducky d ÿá
//[binary binary binary...]
Ï[leñnœ“}ÛOyŠVÑ0êãXÂ}Ö'±”É iÉöÚ$GTQ7äŽø
uÚ_êÍòXgV¿Õ=€q`]aKRÐÀ
ò<ÿÙ
------WebKitFormBoundary9BhXe3lt2UddCDz9--
这应该适用于所有浏览器（请注意，internet explorer不使用
----WebkitFormBoundary----request.setEncoding('binary');
//Grabbing all data from the image
var body = ''
var binaryEnd; //gets the string that indicates the location of the end of the binary file
var first = true;
request.on('data', function(data) {
if(first)
binaryEnd = data.toString().substring(0, data.toString().indexOf('\n')-1);
first = false;
body += data
});
//Dealing with the image once we have everything
request.on('end', function() {
var note = querystring.parse(body, '\r\n', ':')
console.log(note)
//making sure than an image was submitted
if (note['Content-Type'].indexOf("image") != -1)
{
//get the filename
var fileInfo = note['Content-Disposition'].split('; ');
for (value in fileInfo){
if (fileInfo[value].indexOf("filename=") != -1){
fileName = fileInfo[value].substring(10, fileInfo[value].length-1);
if (fileName.indexOf('\\') != -1)
fileName = fileName.substring(fileName.lastIndexOf('\\')+1);
console.log("My filename: " + fileName);
}
}
//Get the type of the image (eg. image/gif or image/png)
var entireData = body.toString();
var contentTypeRegex = /Content-Type: image\/.*/;
contentType = note['Content-Type'].substring(1);
//Get the location of the start of the binary file,
//which happens to be where contentType ends
var upperBoundary = entireData.indexOf(contentType) + contentType.length;
var shorterData = entireData.substring(upperBoundary);
//replace trailing and starting spaces
var binaryDataAlmost = shorterData.replace(/^\s\s*/, '').replace(/\s\s*$/, '');
//Cut the extra things at the end of the data (Webkit stuff)
var binaryData = binaryDataAlmost.substring(0, binaryDataAlmost.indexOf(firstLine));
//Write to a file
fs.writeFile('./images/' + fileName , binaryData, 'binary', function(err)
{
//forward to another location after writing data
response.writeHead(302, {
'location':'/index.html'
});
response.end();
});
}
else
respond(404, "Please input an image", response);
});