我正在尝试允许 javascript 与 Node.js 服务器进行通信。
POST 请求（网络浏览器）
var http = new XMLHttpRequest();
var params = "text=stuff";
http.open("POST", "http://someurl.net:8080", true);
http.setRequestHeader("Content-type", "application/x-www-form-urlencoded");
http.setRequestHeader("Content-length", params.length);
http.setRequestHeader("Connection", "close");
alert(http.onreadystatechange);
http.onreadystatechange = function() {
if (http.readyState == 4 && http.status == 200) {
alert(http.responseText);
}
}
http.send(params);
现在 Node.js 服务器代码如下所示。在用于 GET 请求之前。我不知道如何让它与 POST 请求一起工作。
服务器（Node.js）
var server = http.createServer(function (request, response) {
var queryData = url.parse(request.url, true).query;
if (queryData.text) {
convert('engfemale1', queryData.text, response);
response.writeHead(200, {
'Content-Type': 'audio/mp3',
'Content-Disposition': 'attachment; filename="tts.mp3"'
});
}
else {
response.end('No text to convert.');
}
}).listen(8080);
以下代码演示如何从 HTML 表单读取值。正如@pimvdb所说，您需要使用 request.on('data'...) 来捕获正文的内容。
const http = require('http')
const server = http.createServer(function(request, response) {
console.dir(request.param)
if (request.method == 'POST') {
console.log('POST')
var body = ''
request.on('data', function(data) {
body += data
console.log('Partial body: ' + body)
})
request.on('end', function() {
console.log('Body: ' + body)
response.writeHead(200, {'Content-Type': 'text/html'})
response.end('post received')
})
} else {
console.log('GET')
var html = `
<html>
<body>
<form method="post" action="http://localhost:3000">Name:
<input type="text" name="name" />
<input type="submit" value="Submit" />
</form>
</body>
</html>`
response.writeHead(200, {'Content-Type': 'text/html'})
response.end(html)
}
})
const port = 3000
const host = '127.0.0.1'
server.listen(port, host)
console.log(`Listening at http://${host}:${port}`)
如果你使用类似的东西Express.js and 身体解析器那么它看起来像这样，因为 Express 将处理 request.body 连接
var express = require('express')
var fs = require('fs')
var app = express()
app.use(express.bodyParser())
app.get('/', function(request, response) {
console.log('GET /')
var html = `
<html>
<body>
<form method="post" action="http://localhost:3000">Name:
<input type="text" name="name" />
<input type="submit" value="Submit" />
</form>
</body>
</html>`
response.writeHead(200, {'Content-Type': 'text/html'})
response.end(html)
})
app.post('/', function(request, response) {
console.log('POST /')
console.dir(request.body)
response.writeHead(200, {'Content-Type': 'text/html'})
response.end('thanks')
})
const port = 3000
app.listen(port)
console.log(`Listening at http://localhost:${port}`)
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