Question

我正在使用教程，因此添加了以下代码

var express = require('express'); // Web Framework
var app = express();
var sql = require('mssql'); // MS Sql Server client

// Connection string parameters.
var sqlConfig = {
    user: 'student',
    password: 'something',
    server: 'localhost',
    database: 'Raw_Data'
}

// Start server and listen on http://localhost:8081/
var server = app.listen(8081, function () {
    var host = server.address().address
    var port = server.address().port

    console.log("app listening at http://%s:%s", host, port)
})
app.get('/', function (req, res) {
    sql.connect(sqlConfig, function() {
        var request = new sql.Request();
        request.query('select * from testtable', function(err, recordset) {
            if(err) console.log(err);
            res.end(JSON.stringify(recordset)); // Result in JSON format
        });
    });
})

使用节点server.js启动服务器后，当我访问localhost：8081时收到一条错误语句Cannot GET /。你有什么主意吗？

Answer 1

您需要创建一个节点路由器来重定向/中的请求，该请求在您的代码中丢失

var express = require('express');
var app = express();
var router = express.Router();
/*other code*/
//create a router for /
router.get('/', function (req, res) {
    sql.connect(sqlConfig, function() {
        var request = new sql.Request();
        request.query('select * from testtable', function(err, recordset) {
            if(err) console.log(err);
            res.end(JSON.stringify(recordset)); // Result in JSON format
        });
    });
});

如何解决node.js中无法获取/错误的问题？

1 个答案: