尝试从wikipedia获取图像并在node.js中提供
我试图在node.js中创建一个Web服务器，从Wikipedia下载一个图像，并将其保存在页面上。我不能让它工作。我将代码粘贴到在线沙盒中：尝试从wikipedia获取图像并在node.js中提供,node.js,Node.js,我试图在node.js中创建一个Web服务器，从Wikipedia下载一个图像，并将其保存在页面上。我不能让它工作。我将代码粘贴到在线沙盒中： fs.js:415 binding.write(fd, buffer, offset, length, position, wrapper);
fs.js:415
binding.write(fd, buffer, offset, length, position, wrapper);
^
TypeError: Bad argument
at Object.fs.write (fs.js:415:11)
at IncomingMessage.<anonymous> (server.js:18:12)
at IncomingMessage.EventEmitter.emit (events.js:96:17)
at IncomingMessage._emitData (http.js:359:10)
at HTTPParser.parserOnBody [as onBody] (http.js:123:21)
at Socket.socketOnData [as ondata] (http.js:1485:20)
at TCP.onread (net.js:404:27)
var http = require('http');
var fs = require('fs');
var fd = fs.open('name.jpeg', 'r+');
var options = {
host:'upload.wikimedia.org',
port:80,
path:'/wikipedia/commons/1/15/Jagdschloss_Granitz_4.jpg'
};
var server = http.createServer(function(req, res){
res.writeHead(200, ['Content-Type', 'text/html']);
http.get(options,function(res) {
res.on('data', function (chunk) {
fs.write(fd, chunk, 0, chunk.length, 0, null);
});
res.on('end',function(){
fd.end();
res.send("<img src='name.jpeg'></img>");
res.end();
});
});
});
fs.js:415
binding.write(fd, buffer, offset, length, position, wrapper);
^
TypeError: Bad argument
at Object.fs.write (fs.js:415:11)
at IncomingMessage.<anonymous> (server.js:18:12)
at IncomingMessage.EventEmitter.emit (events.js:96:17)
at IncomingMessage._emitData (http.js:359:10)
at HTTPParser.parserOnBody [as onBody] (http.js:123:21)
at Socket.socketOnData [as ondata] (http.js:1485:20)
at TCP.onread (net.js:404:27)
var http=require（'http'）；
var fs=需要（'fs'）；
var fd=fs.open（'name.jpeg'，'r+'）；
变量选项={
主持人：'upload.wikimedia.org'，
港口：80，
路径：'/wikipedia/commons/1/15/Jagdschloss_Granitz_4.jpg'
};
var server=http.createServer（函数（req，res）{
res.writeHead（200，['Content-Type'，'text/html']）；
get（选项、函数（res）{
res.on（'data'，函数（块）{
写入（fd，chunk，0，chunk.length，0，null）；
});
res.on（'end'，function（）{
fd.end（）；
res.send（“”）；
res.end（）；
});
});
});
fs.js:415
binding.write(fd, buffer, offset, length, position, wrapper);
^
TypeError: Bad argument
at Object.fs.write (fs.js:415:11)
at IncomingMessage.<anonymous> (server.js:18:12)
at IncomingMessage.EventEmitter.emit (events.js:96:17)
at IncomingMessage._emitData (http.js:359:10)
at HTTPParser.parserOnBody [as onBody] (http.js:123:21)
at Socket.socketOnData [as ondata] (http.js:1485:20)
at TCP.onread (net.js:404:27)
fs.js:415
binding.write(fd, buffer, offset, length, position, wrapper);
^
TypeError: Bad argument
at Object.fs.write (fs.js:415:11)
at IncomingMessage.<anonymous> (server.js:18:12)
at IncomingMessage.EventEmitter.emit (events.js:96:17)
at IncomingMessage._emitData (http.js:359:10)
at HTTPParser.parserOnBody [as onBody] (http.js:123:21)
at Socket.socketOnData [as ondata] (http.js:1485:20)
at TCP.onread (net.js:404:27)
fs.js:415
binding.write(fd, buffer, offset, length, position, wrapper);
^
TypeError: Bad argument
at Object.fs.write (fs.js:415:11)
at IncomingMessage.<anonymous> (server.js:18:12)
at IncomingMessage.EventEmitter.emit (events.js:96:17)
at IncomingMessage._emitData (http.js:359:10)
at HTTPParser.parserOnBody [as onBody] (http.js:123:21)
at Socket.socketOnData [as ondata] (http.js:1485:20)
at TCP.onread (net.js:404:27)
fs.js:415
binding.write(fd, buffer, offset, length, position, wrapper);
^
TypeError: Bad argument
at Object.fs.write (fs.js:415:11)
at IncomingMessage.<anonymous> (server.js:18:12)
at IncomingMessage.EventEmitter.emit (events.js:96:17)
at IncomingMessage._emitData (http.js:359:10)
at HTTPParser.parserOnBody [as onBody] (http.js:123:21)
at Socket.socketOnData [as ondata] (http.js:1485:20)
at TCP.onread (net.js:404:27)
fs.js:415
binding.write（fd、缓冲区、偏移量、长度、位置、包装器）；
^
TypeError:参数错误
在Object.fs.write（fs.js:415:11）
在收到消息时。（server.js:18:12）
在IncomingMessage.EventEmitter.emit（events.js:96:17）
在IncomingMessage._emitData（http.js:359:10）
在HTTPParser.parserOnBody[作为onBody]（http.js:123:21）
在Socket.socketOnData[as ondata]（http.js:1485:20）
在TCP.onread（net.js:404:27）
fs.js:415
binding.write(fd, buffer, offset, length, position, wrapper);
^
TypeError: Bad argument
at Object.fs.write (fs.js:415:11)
at IncomingMessage.<anonymous> (server.js:18:12)
at IncomingMessage.EventEmitter.emit (events.js:96:17)
at IncomingMessage._emitData (http.js:359:10)
at HTTPParser.parserOnBody [as onBody] (http.js:123:21)
at Socket.socketOnData [as ondata] (http.js:1485:20)
at TCP.onread (net.js:404:27)
/**Try to get an image from Wikipedia and return it**/
var http = require('http');
var fs = require('fs');
var options = {
host:'upload.wikimedia.org',
port:80,
path:'/wikipedia/commons/1/15/Jagdschloss_Granitz_4.jpg'
};
var server = http.createServer(function(req, res){
res.writeHead(200, ['Content-Type', 'text/html']);
http.get(options,function(imgRes) {
imgRes.pipe(fs.createWriteStream('name.jpeg'));
res.end("<html><img src='name.jpeg'></img></html>");
});
});
server.listen(process.env.OPENSHIFT_NODEJS_PORT, process.env.OPENSHIFT_NODEJS_IP);
嘿，Wach，谢谢你的回复，但我正在尝试学习node，不想使用外部库，还可以吗？@Chen Lee任何库都可以做，你可以手动做；）（更新答案）谢谢！但是我的图像仍然没有显示，如果您在sandbox:：中看到输出，在webview中它有“不是图像吗？替换
res.writeHead（200，['Content-Type'，'text/html'）带有res.writeHead（200，{'Content-Type'：'text/html'}）维基喜欢过滤他们的图片吗？