如何在node.js里連接和使用mysql
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慕姐4208626
TA貢獻1852條經(jīng)驗 獲得超7個贊
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 | var sys = require('sys');
var Client = require('mysql').Client; var client = new Client();
client.user = 'someuser'; client.password = 'password';
console.log('Connecting to MySQL...');
client.connect(function(error, results) { if(error) { console.log('Connection Error: ' + error.message); return; } console.log('Connected to MySQL'); ClientConnectionReady(client); });
ClientConnectionReady = function(client) { client.query('USE NodeSample', function(error, results) { if(error) { console.log('ClientConnectionReady Error: ' + error.message); client.end(); return; } ClientReady(client); }); };
ClientReady = function(client) { var values = ['Chad', 'Lung', 'Hello World']; client.query('INSERT INTO MyTable SET firstname = ?, lastname = ? , message = ?', values, function(error, results) { if(error) { console.log("ClientReady Error: " + error.message); client.end(); return; } console.log('Inserted: ' + results.affectedRows + ' row.'); console.log('Id inserted: ' + results.insertId); } ); GetData(client); }
GetData = function(client) { client.query( 'SELECT * FROM MyTable', function selectCb(error, results, fields) { if (error) { console.log('GetData Error: ' + error.message); client.end(); return; } // Uncomment these if you want lots of feedback //console.log('Results:'); //console.log(results); //console.log('Field metadata:'); //console.log(fields); //console.log(sys.inspect(results));
if(results.length > 0) { var firstResult = results[0]; console.log('First Name: ' + firstResult['firstname']); console.log('Last Name: ' + firstResult['lastname']); console.log('Message: ' + firstResult['message']); } });
client.end(); console.log('Connection closed'); }; |
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