1. //例如带请求参数的url-----localhost:5000/api/blog/list?author=hamo&keyword=A
    2. const http = require('http');   //引入nodejs内置的http模块
    3. const querystring = require('querystring'); //引入查询字符串处理为对象形式
    5. const server = http.createServer((req, res) => {
    6.   const method = req.method;   //获取请求方式
    7.   console.log('method', method);
    8.   const url = req.url;  //获取请求地址   
    9.   console.log('url', url);
    10.   req.query = querystring.parse(url.split('?')[1]);  //将url用？分割拿到？后面的字符串再转换为对象
    11.   console.log('query', req.query);
    13.   res.end(
    14.     JSON.stringify(req.query)  //将对象转换成字符串返回给前端渲染
    15.   );
    16. });
    18. server.listen(5000, () => {   //监听端口号5000
    19.   console.log('server running at port 5000');
    20. })