Question

我正在尝试使用Node.js创建一个简单的网站！我在服务器上安装了node.js，我设置了DNS并启动了我的服务器。在按钮上单击POST HTTP请求“/ buildRequest”应发送到服务器。在此路径中，应调用外部函数，该函数返回包含
的对象 ErrorMessage（一个像错误的对象：“这是一个错误”）或文件的路径（字符串）。如果我通过localhost：8888（我正在使用的端口）进入页面，它的工作正常。该路线将被调用。但是，如果我使用DNS名称访问网站并单击按钮，页面上会显示：
“无法加载资源：服务器响应状态为404（未找到）”

Server.js

var express = require('express');
var bodyParser = require("body-parser");
var dbFunc = require("./dbFunctions.js");
var util = require('util');
var app = express();
var path = require('path');
var fs = require('fs');
var port = 8888;
var http = require('http');
http.globalAgent.maxSockets = 1000;
//allow to use body-parser
app.use(bodyParser.urlencoded({
    extended: false
}));
app.use(bodyParser.json());
//allow to use static files
app.use(express.static("public"));
//listen to smth
app.post('/buildRequest', function (req, res) {
        //buildrequest call was succ
        var main = dbFunc.main(req.body.dbParameter, function (data) {
            var result = data;
                res.send(result);
        });
});
//start server
app.listen(port);
console.log("Server running on port" + port);

单击特定按钮时触发的客户端js函数：

function callServerSideScript(dbParameter) {
    //do check here if a value is missing
   db = document.getElementById(dbParameter).value;
    httpRequest = new XMLHttpRequest()
    httpRequest.open('POST', '/buildRequest')
    httpRequest.setRequestHeader("Content-type", "application/x-www-form-urlencoded");
    httpRequest.send("dbParameter=" + db);
    httpRequest.onload = function () {
      if (this.status >= 200 && this.status < 400) {
       try {
        //if try is successfull response is an object. Return the object as string(error message)
        var test = JSON.parse(this.response);
        alert(this.response);
       } catch (error) {
        //is not an object,means its a string = download
        window.open("/download");
       }  
      } else {
        // We reached our target server, but it returned an error
      }
    };

    httpRequest.onerror = function () {
      // There was a connection error of some sort
    };
  }

为什么路由在服务器上使用localhost而在服务器外访问网站时不能“远程”？

编辑：我的文件夹结构如下所示： main.js包含客户端函数（比如执行HTTP请求）

.
+--public
|   + index.html
|   + <someother html files>
|   + main.js
|
+-- server.js
|
|
+-- dbFunctions.js

问候

NodeJS路由仅适用于本地主机，而不是404

0 个答案: