标签：本地 route init end char ports ati erro span
用nodejs服务器去拿取后台的数据。(我刚开始学的nodejs的时候是一个蒙圈的宝宝 t.t，开始接触的时候，在本地搭建去拿数据。之前菜鸟的我都不知道路由是神马[囧囧])。
--> index.js
var server = require("./server"); var router = require("./router"); var requestHandlers = require("./requestHandlers"); var handle = {}; handle["/get_data"] = requestHandlers.get_data; server.start(router.route, handle);
--> server.js
var http = require("http"); var url = require("url"); function start(route, handle) { function onRequest(request, response) { var postData = ""; var pathname = url.parse(request.url).pathname; var getData = url.parse(request.url).query; console.log("Request for " + pathname + " received."); request.setEncoding("utf8"); request.addListener("data", function(postDataChunk) { postData += postDataChunk; console.log("Received POST data chunk ‘"+ postDataChunk + "‘."); }); request.addListener("end", function() { if(postData == ""){ postData = getData; } route(handle, pathname, response, postData); }); } http.createServer(onRequest).listen(8888);//当你成功滴时候，你的数据在这里。 console.log("Server has started."); } exports.start = start;
--> router.js
function route(handle, pathname, response, postData) { console.log("About to route a request for " + pathname); if (typeof handle[pathname] === ‘function‘) { handle[pathname](response, postData); } else { console.log("No request handler found for " + pathname); response.writeHead(404, {"Content-Type": "text/plain"}); response.write("404 Not found"); response.end(); } } exports.route = route;
--> requestHandlers.js
var querystring = require("querystring"); var request = require(‘request‘);//请求模块 //get data function get_data(res, postData) { console.log(‘get debug post data‘,JSON.stringify(postData)); request.post({ url : ‘xxx.xx.xxx‘,//你请求后台的链接 form : { //params,你的请求的参数 } }, function(error, response, body) { console.log(‘body is‘,body); res.writeHead(200,{‘Content-Type‘:‘application/json; charset=utf8‘, ‘Access-Control-Allow-Origin‘:‘*‘, ‘Accept-Language‘:‘zh-CN‘});//响应头 res.end(body); }); } exports.get_data = get_data;
然后，你可以启动你的服务：node index，当命令行出现 “Server has started”。如果出现什么错误的话，可能的情况是你的node_modules里的模块没有安装完成，按照缺少的安装就好了。对了，还有一个package.json,通过 npm init去生成。npm install xxx --dev去安装相应的包。然后去你的浏览器输入 127.0.0.1:8888/get_data,看有没有你想要的数据哦。
标签：本地 route init end char ports ati erro span
原文地址：http://www.cnblogs.com/biangz/p/6250300.html
