扫二维码与项目经理沟通
我们在微信上24小时期待你的声音
解答本文疑问/技术咨询/运营咨询/技术建议/互联网交流
这篇文章主要为大家展示了“Node.js怎么实现文本提交与显示方法”,内容简而易懂,条理清晰,希望能够帮助大家解决疑惑,下面让小编带领大家一起研究并学习一下“Node.js怎么实现文本提交与显示方法”这篇文章吧。
目前成都创新互联已为1000多家的企业提供了网站建设、域名、雅安服务器托管、网站托管、服务器租用、企业网站设计、薛城网站维护等服务,公司将坚持客户导向、应用为本的策略,正道将秉承"和谐、参与、激情"的文化,与客户和合作伙伴齐心协力一起成长,共同发展。具体如下:
index.js
var server = require("./server"); var router = require("./router"); var requestHandlers = require("./requestHandlers"); var handle = {} handle["/"] = requestHandlers.start; handle["/start"] = requestHandlers.start; handle["/upload"] = requestHandlers.upload; 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; 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() { console.log("data received ending" + pathname); route(handle, pathname, response, postData); }); } http.createServer(onRequest).listen(8888); console.log("Server has started."); } exports.start = start;
requestHandlers.js
var querystring = require("querystring"); function start(response, postData) { console.log("Request handler 'start' was called."); var body = ''+ ''+ ''+ ''+ ''+ ''+ ''+ ''; 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 the text: "+ querystring.parse(postData).text); response.end(); } exports.start = start; exports.upload = upload;
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;
result:
知识点:
require和exports的用法:
index.js中代码
var Hello = require('.hello'); hello = new Hello(); hello.setName('Joey'); hello.sayHello();
hello.js中代码
function Hello(){ var name; this.setName = function(thyName){ name = thyName; } this.sayHello = function(){ console.log('Hello ' + name); } } //exports.Hello = Hello; //此时我们在其他文件中需要通过 require('./hello').Hello来获取Hello对象,这种写法有点冗余 module.exports = Hello; //输出的就是Hello对象本身,不是上面的exports,上面的是暴露.Hello,.Hello赋予了Hello对象
以上是“Node.js怎么实现文本提交与显示方法”这篇文章的所有内容,感谢各位的阅读!相信大家都有了一定的了解,希望分享的内容对大家有所帮助,如果还想学习更多知识,欢迎关注创新互联网站建设公司行业资讯频道!
另外有需要云服务器可以了解下创新互联建站www.cdcxhl.com,海内外云服务器15元起步,三天无理由+7*72小时售后在线,公司持有idc许可证,提供“云服务器、裸金属服务器、高防服务器、香港服务器、美国服务器、虚拟主机、免备案服务器”等云主机租用服务以及企业上云的综合解决方案,具有“安全稳定、简单易用、服务可用性高、性价比高”等特点与优势,专为企业上云打造定制,能够满足用户丰富、多元化的应用场景需求。
我们在微信上24小时期待你的声音
解答本文疑问/技术咨询/运营咨询/技术建议/互联网交流