详解Node.Js如何处理post数据

2020-06-17 07:39:40易采站长站整理

'<head>'+
'<meta http-equiv="Content-Type" content="text/html; '+
'charset=UTF-8" />'+
'</head>'+
'<body>'+
'<form action="/upload" method="post">'+
'<textarea name="text" rows="20" cols="60"></textarea>'+
'<input type="submit" value="Submit text" />'+
'</form>'+
'</body>'+
'</html>';

response.writeHead(200, {"Content-Type": "text/html"});
response.write(body);
response.end();
}

function upload(response,postData) {
console.log("Request handler 'upload' was called.");
response.writeHead(200, {"Content-Type": "text/plain"});
response.write("You've sent: " + postData);
response.end();
}

exports.start = start;
exports.upload = upload;

运行:

node mynode/index

浏览器输入

http://localhost:5656/

结果:

在文本框里输入“I LOVE YOU” 点击提交

使用querystring模块只提取文本,修改一下requestHandlers.js使只返回文本


var querystring = require("querystring");

function start(response,postData) {
console.log("Request handler 'start' was called.");

var body = '<html>'+
'<head>'+
'<meta http-equiv="Content-Type" content="text/html; '+
'charset=UTF-8" />'+
'</head>'+
'<body>'+
'<form action="/upload" method="post">'+
'<textarea name="text" rows="20" cols="60"></textarea>'+
'<input type="submit" value="Submit text" />'+
'</form>'+
'</body>'+
'</html>';

response.writeHead(200, {"Content-Type": "text/html"});
response.write(body);
response.end();
}

function upload(response,postData) {
console.log("Request handler 'upload' was called.");
response.writeHead(200, {"Content-Type": "text/plain"});
response.write("You've sent: " + querystring.parse(postData).text);
response.end();
}

exports.start = start;
exports.upload = upload;

重新启动,依旧输入I LOVE YOU ,提交

总结

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