nodejs简单使用ejs模板引擎，如何获取get、post请求传值
。
目录结构
在npm.com网站上搜索ejs的使用方法
下载ejs
npm install ejs --save
app.js
const http = require('http');
const fs = require('fs');
const routes = require('./module/routes')
const url = require('url');
const ejs = require('ejs');
http.createServer(function (req, res) {
// 注册路由
routes.static(req,res,"static");
let pathname = url.parse(req.url).pathname;
if(pathname === '/login'){
let msg = "数据库里面获取的数据";
let list = [
{title:"新闻1"},
{title:"新闻2"},
{title:"新闻3"},
{title:"新闻4"},
{title:"新闻5"},
]
ejs.renderFile("./views/login.ejs",{msg:msg,list:list},{},(err, data) => {
res.writeHead(200, {'Content-Type': 'text/html;charset="utf-8"'});
res.end(data);
})
}else if(pathname === '/news'){
// get请求
// 获取请求类型
console.log(req.method,"请求类型");
var query = url.parse(req.url).query;
console.log(query);
res.writeHead(200, {'Content-Type': 'text/html;charset="utf-8"'});
res.end(query);
}else if(pathname === '/form'){
// 获取请求类型
ejs.renderFile("./views/form.ejs",{},{},(err,data) => {
res.writeHead(200, {'Content-Type': 'text/html;charset="utf-8"'});
res.end(data);
})
}else if(pathname === '/dologin'){
// 获取post传值
let postData = '';
req.on('data',(chunk) => {
postData += chunk;
});
req.on('end',() => {
console.log(postData,"postData");
res.end(postData)
})
}else{
res.writeHead(404, {'Content-Type': 'text/html;charset="utf-8"'});
res.end('<h1>这个页面不存在</h1>');
}
}).listen(3000);
console.log('Server running at http://127.0.0.1:3000/');
views/login.ejs
<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <meta http-equiv="X-UA-Compatible" content="IE=edge"> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <title>Document</title> </head> <body> <h2>ejs模板引擎</h2> <h3><%=msg%></h3> <br> <h2>列表渲染 "<%%><%%>"之间可以写javascript代码</h2> <ul> <%for(var i = 0;i < list.length;i++){%> <li><%=list[i].title%></li> <%}%> </ul> </body> </html>
views/form.ejs
用来发post请求
<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <meta http-equiv="X-UA-Compatible" content="IE=edge"> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <title>Document</title> </head> <body> <form action="/dologin" method="post"> 用户名：<input type="text" name="username"/> <br> <br> 密码：<input type="password" name="password"/> <br> <br> <input type="submit" value="提交"> </form> </body> </html>
。
