404在Postgres和NodeJs API中找不到錯誤（可能重複）

Question

我是Nodejs的新手。我正在使用node，express和Postgres DB創建apis。

const {Pool} = require('pg'); 



//const connectionString = process.env.DATABASE_URL || 'postgres://localhost:5432/springmvctutorial'; 

var http = require("http"); 
var express = require('express'); 
const router = express.Router(); 
const app = express(); 
var bodyParser = require('body-parser'); 

var apiVersion = '/api/v1/'; 


const poo = new Pool({ 
    database: 'springmvctutorial', 
    host: 'localhost', 
    user: 'postgres', 
    password : 'root', 
    port: 5432, 
    max: 20, 
    idleTimeoutMillis: 30000, 
    connectionTimeoutMillis: 2000, 
}) 



app.use(bodyParser.json());  // to support JSON-encoded bodies 
app.use(bodyParser.urlencoded({  // to support URL-encoded bodies 
    extended: true 
})); 

//create app server 
var server = app.listen(3030, "localhost", function() { 
    var host = server.address().address 
    var port = server.address().port 
    console.log("Example app listening at http://%s:%s", host, port) 
}); 


router.post('/api/v1/postData', (req, res, next) => { 

    poo.connect((err, client, release) => { 
    if (err) { 
     return console.error('Error acquiring client', err.stack); 
    } 
    client.query('INSERT INTO items(text, complete) values(1,false)', (err, result) => { 
     release(); 
     if (err) { 
     return console.error('Error executing query', err.stack); 
     } 
     console.log(result.rows); 
    }); 
    }); 

}); 

module.exports = router; 

我的表格和數據庫已創建。我從Postgres CLI檢查。但是，當我使用節點main.js運行我的main.js文件時。它開始收聽本地主機上的端口，但是當我啓動時，但當我啓動時，

http://127.0.0.1:3030/api/v1/postData 

它給出404資源找不到錯誤。

我從郵遞員輸入，

{ 
"text":"user@gmail.com", 
"complete": true 
} 

我完全新的Web開發。所以如果它看起來很傻，請和我一起裸露。

Answer 1

嘗試這樣的，我沒有測試，由於我沒有在這臺機器

const {Pool} = require('pg'); 
//const connectionString = process.env.DATABASE_URL || 'postgres://localhost:5432/springmvctutorial'; 
var http = require("http"); 
var express = require('express'); 
const app = express(); 
var bodyParser = require('body-parser'); 

var apiVersion = '/api/v1/'; 
const poo = new Pool({ 
    database: 'springmvctutorial', 
    host: 'localhost', 
    user: 'postgres', 
    password : 'root', 
    port: 5432, 
    max: 20, 
    idleTimeoutMillis: 30000, 
    connectionTimeoutMillis: 2000, 
}) 
app.use(bodyParser.json());  // to support JSON-encoded bodies 
app.use(bodyParser.urlencoded({  // to support URL-encoded bodies 
    extended: true 
})); 

//create app server 
app.listen(3030, "localhost", function() { 
    var host = server.address().address 
    var port = server.address().port 
    console.log("Example app listening at http://%s:%s", host, port) 
}); 


app.post('/api/v1/postData', (req, res, next) => { 

    poo.connect((err, client, release) => { 
    if (err) { 
     return console.error('Error acquiring client', err.stack); 
    } 
    client.query('INSERT INTO items(text, complete) values(1,false)', (err, result) => { 
     release(); 
     if (err) { 
     return console.error('Error executing query', err.stack); 
     } 
     console.log(result.rows); 
    }); 
    }); 

});