将 nodejs 连接到 SQL Server

Question

I am using this package with express-js and I have this connection settings but it returns an error:

TypeError: The "config.server" property is required and must be of type string.

Configuration:

const config = new sql.ConnectionPool({
    user: 'USERNAME',
    password: 'PASSWORD',
    database: 'My_DATABASE_NAME',
    server: '120.000000.000,3306/SQLSERVER2014',
});

and then this code to execute procedure

app.get('/users', (req, res) => {
    sql.connect(config).then(pool =>{
        return pool.request()
        // .execute('procedure_name')
        .query('select * from AspNetUsers');
    }).then(result => {
        console.dir(result)
        pool.close();
    }).catch(err => {
        console.log(err);
        pool.close();
    });
});

Any idea what might be the issue with server value?

Answer 1

The lib document does not said like your example code. You push a ConnectionPool instance (stores in config variable) to connect function of sql .

I think, you need choose one way to query data from mssql server:

1. ConnectionPool , reuse your code, create a connection pool, then use it.

const pool = new sql.ConnectionPool({ // `pool` - clear variable name
  user: 'USERNAME',
  password: 'PASSWORD',
  database: 'My_DATABASE_NAME',
  server: 'localhost', // Example
});


//
app.get('/users', (req, res) => {
  pool.connect() // just call .connect
    .then(() => {
      return pool.request() // use `pool` const
        // .execute('procedure_name')
        .query('select * from AspNetUsers');
    }).then(result => {
      console.dir(result)
      pool.close();
    }).catch(err => {
      console.log(err);
      pool.close();
    });
});

2. Create new connection pool for each time when you want to query data.

const config = { // A "normal" json object
  user: 'USERNAME',
  password: 'PASSWORD',
  database: 'My_DATABASE_NAME',
  server: 'localhost', // Example
};


//
app.get('/users', (req, res) => {
  const pool = null;
  sql.connect(config) // create new connection pool
    .then(newPool => {
      pool = newPool;
      return pool.request()
        // .execute('procedure_name')
        .query('select * from AspNetUsers');
    }).then(result => {
      console.dir(result)
      pool.close();
    }).catch(err => {
      console.log(err);
      pool && pool.close();
    });
});