var db_options = {
host: 'localhost',
port: 3306,
user: 'root',
password: '',
database: 'test'
};
//加载mysql Module  
var mysql = require('mysql'),client = null;
if(mysql.createClient) {
client = mysql.createClient(db_options);
} else {
client = new mysql.Client(db_options);
client.connect(function(err) {
    if(err) {
        console.error('connect db ' + client.host + ' error: ' + err);
        process.exit();
    }
});
};

client.query(
'create table TestTable1 values(name varchar(50),' +
    'PhoneNum varchar(100))'
);

client.query(
'INSERT INTO TestTable1 '+
    'SET Name = ?, PhoneNum = ?',
['ceshi', '******']
);

client.query(
'SELECT * FROM TestTable1',
function selectCb(err, results, fields) {
    if (err) {
        console.log(2);
        throw err;
    }
    console.log(results);
    client.end();
}
);

为何总是提示我Error: connect ECONNREFUSED 昨天还好好的啊。