add "HTTP Server with POST body"

tools/server-client/http-server-post-body-node-demo.js

@@ -0,0 +1,39 @@
+/**
+ * HTTP Server with POST body (node demo)
+ * CommonJS
+ */
+const http = require('http');
+const url = require('url');
+const fs = require('fs')
+
+const port = 8080;
+const server = http.createServer((request, response) => {
+    console.log("\n\n\n");
+    console.log("当前时间：" + Date.now() + " | " + new Date().toLocaleString() + " | " + new Date().toISOString());
+    console.log("request.method", request.method);
+    let requestUrl = url.parse(request.url, true);
+    console.log("request.url", requestUrl.pathname, requestUrl.query);
+    console.log("request.headers", request.headers);
+
+    var bufferArr = [];
+    // data - 有一段数据到达触发（多次）
+    request.on('data', function (data) {
+        bufferArr.push(data);
+    });
+    // end - 数据全部到达触发（一次）
+    request.on('end', function () {
+        var postData = Buffer.concat(bufferArr)
+        console.log("postData", postData)
+        fs.writeFileSync('postData.dat', postData)
+    });
+
+
+    response.setHeader("Content-Type", "text/json;charset=utf-8");
+    response.write("hello!");
+    response.end();
+})
+
+server.listen(port, (error) => {
+    console.log(error);
+    console.log(`server is running at port ${port}`);
+})