1const http = require("http");
 2const querystring = require("querystring");
 3
 4
 5const server = http.createServer((req, res) => {
 6  console.log(req.method);
 7  const url = req.url;
 8  req.query = querystring.parse(url.split("?")[1]);
 9  res.end(JSON.stringify(req.query));
10
11});
12
13server.listen(4000, () => {
14  console.log("4000");
15});

 1GET {{api}}/?a=eee&b=222
 2
 3---
 4
 5HTTP/1.1 200 OK
 6Date: Fri, 19 Jul 2019 02:28:07 GMT
 7Connection: close
 8Content-Length: 21
 9
10{"a":"eee","b":"222"}

 1const http = require("http");
 2const server = http.createServer((req, res) => {
 3  if (req.method === "POST") {
 4    //req Data Format
 5    console.log("req content-type", req.headers["content-type"]);
 6    // Accept Data
 7    let postData = "";
 8    req.on("data", chunk => {
 9      //chunk is binary
10      postData = postData + chunk.toString();
11    });
12    req.on("end", () => {
13      console.log(postData);
14      res.end(postData);
15    });
16  }
17});
18
19server.listen(4000, () => {
20  console.log("4000");
21});

 1POST {{api}} HTTP/1.1
 2Content-Type: application/json
 3
 4{
 5    "name":"张三",
 6    "age": 54
 7}
 8
 9---
10
11HTTP/1.1 200 OK
12Date: Fri, 19 Jul 2019 03:14:20 GMT
13Connection: close
14Content-Length: 38
15
16{
17    "name":"张三",
18    "age": 54
19}

 1const http = require("http");
 2const querystring = require("querystring");
 3
 4const server = http.createServer((req, res) => {
 5  const method = req.method;
 6  const url = req.url;
 7
 8  const path = url.split("?")[0];
 9  console.log("path: ", path);
10
11  const query = querystring.parse(url.split("?")[1]);
12  console.log("query: ", query);
13
14  res.setHeader("Content-type", "application/json"); //设置响应头的类型
15
16  const resData = {
17    method,
18    url,
19    path,
20    query
21  };
22
23    //GET
24
25  if (method === "GET") {
26    res.end(JSON.stringify(resData));
27  }
28
29    //POST
30
31  if (method === "POST") {
32    let postData = "";
33
34    req.on("data", chunk => {
35      postData += chunk.toString();
36    });
37
38    req.on("end", () => {
39      resData.postData = postData;
40      res.end(JSON.stringify(resData));
41    });
42  }
43});
44
45server.listen(4000, () => {
46  console.log("4000");
47});

 1GET {{api}}/?a=eee&b=222
 2
 3HTTP/1.1 200 OK
 4Content-type: application/json
 5Date: Fri, 19 Jul 2019 05:46:50 GMT
 6Connection: close
 7Content-Length: 79
 8
 9{
10  "method": "GET",
11  "url": "/?a=eee&b=222",
12  "path": "/",
13  "query": {
14    "a": "eee",
15    "b": "222"
16  }
17}

 1POST {{api}}/a/b?a=eee&b=222 HTTP/1.1
 2Content-Type: application/json
 3
 4{
 5    "name":"张三",
 6    "age": 54
 7}
 8
 9HTTP/1.1 200 OK
10Content-type: application/json
11Date: Fri, 19 Jul 2019 05:47:42 GMT
12Connection: close
13Content-Length: 147
14
15{
16  "method": "POST",
17  "url": "/a/b?a=eee&b=222",
18  "path": "/a/b",
19  "query": {
20    "a": "eee",
21    "b": "222"
22  },
23  "postData": "{\n    \"name\":\"张三\",\n    \"age\": 54\n}"
24}