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[英]How to set up encoding UTF-8 or WINDOWS_CP_1251 in Restful API on node.js and express
[英]How to set two root endpoints in one file Restful API with node.js & EXPRESS
當用戶像這樣輸入 url 時,我有根端點工作:
http://localhost:8000/?date=2019-10-20&station=41027&daysForward=3
我想用不同的查詢在同一個文件中創建第二個根端點,但這不起作用。
我的代碼:
// Create express app
var express = require("express")
var app = express()
var mysql = require('mysql')
var express = require("express")
var cors = require('cors')
app.use(cors())
// Server port
var HTTP_PORT = 8000
// Start server
app.listen(HTTP_PORT, () => {
console.log("Server running on port %PORT%".replace("%PORT%",HTTP_PORT))
});
var con = mysql.createConnection({
host: "192.168.1.1",
port: "3456",
user: "user",
password: "pass"
});
var con2 = mysql.createConnection({
host: "192.168.1.1",
port: "3456",
user: "user",
password: "pass"
});
let aladinModel= '';
let aladinModelStations = '';
app.route('/')
.get(function(req, res) {
// omitted
res.setHeader('Access-Control-Allow-Origin', '*');
const date = req.query.date;
const station = req.query.station;
const daysForward = req.query.daysForward;
try {
const query = `CALL aladin_surfex.Get_mod_cell_values_meteogram('${date}', ${station}, ${daysForward})`;
con.query(query, function (err, result, fields) {
if (err) throw err;
aladinModel = result;
});
res.json({aladinModel})
} catch(error){
console.log("Error query database!!!");
}
});
app.route('/stations')
.get(function(req, res) {
// omitted
res.setHeader('Access-Control-Allow-Origin', '*');
try {
const query2 = `SELECT Station,Ime FROM stations_cells`;
con2.query2(query2, function (err, result2, fields) {
if (err) throw err;
aladinModelStations = result2;
});
res.json({aladinModelStations})
} catch(error){
console.log("Error query database!!!");
}
});
app.use(function(req, res){
res.status(404);
});
我想這不是路由頁面的正確方法,但我希望有人可以通過一個示例向我解釋我如何修復代碼 - 所以當用戶輸入時:
http://localhost:3000/stations
應該加載數據。
當我嘗試打開此鏈接時看到此錯誤。
[nodemon] starting `node server.js localhost:8000`
Server running on port 8000
Error query database!!!
這個查詢
SELECT station, ime
FROM stations_cells
在第二個根點上很好。 我嘗試用SELECT
和數據庫返回數據值 SELECT?
第二個根點的問題在哪里?
情況可能並非如此,但這是建議(不適合評論部分)
app.route('/')
.get(function(req, res) {
// omitted
});
app.route('/stations')
.get(function(req, res) {
// omitted
});
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