如何在 class 和方法格式中定义 typescript/Oracledb npm 连接?
How to define typescript/Oracledb npm connection in class and method format?
我正在尝试使用 typescript 以 class 的格式连接 npm Oracledb,并使用 typescript 连接模块。例如,
Import {Oracledb} from 'oracledb'
class ConnectDAO{
public ConnectionDB(): connection{
let connection = Oracledb.getConnection(// connection string);
Return connection;
}
public fetchData(connection): recordset{
connection.execute('query')
Return rs;
}
}
任何人都可以帮助解决这个问题
这是一个完整的例子。只需填写您的连接字符串...
import * as oracledb from 'oracledb';
let testConfig: oracledb.IConnectionAttributes = {
user: `scott`,
password: `tiger`,
connectString: "(DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=..."
}
class ConnectDAO {
public async ConnectionDB(): Promise<oracledb.IConnection> {
return await oracledb.getConnection(testConfig);
}
public fetchData(connection: oracledb.IConnection):
oracledb.IPromise<oracledb.IExecuteReturn> {
return connection.execute('SELECT CURRENT_TIMESTAMP FROM dual');
}
}
async function connectAndExecute() {
let connectDao = new ConnectDAO();
try {
let connection = await connectDao.ConnectionDB();
let results = await connectDao.fetchData(connection);
console.log(`results : ${JSON.stringify(results, null, 4)}`)
} catch (err) {
console.log(`error caught ${err}`);
}
}
connectAndExecute();
我正在尝试使用 typescript 以 class 的格式连接 npm Oracledb,并使用 typescript 连接模块。例如,
Import {Oracledb} from 'oracledb'
class ConnectDAO{
public ConnectionDB(): connection{
let connection = Oracledb.getConnection(// connection string);
Return connection;
}
public fetchData(connection): recordset{
connection.execute('query')
Return rs;
}
}
任何人都可以帮助解决这个问题
这是一个完整的例子。只需填写您的连接字符串...
import * as oracledb from 'oracledb';
let testConfig: oracledb.IConnectionAttributes = {
user: `scott`,
password: `tiger`,
connectString: "(DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=..."
}
class ConnectDAO {
public async ConnectionDB(): Promise<oracledb.IConnection> {
return await oracledb.getConnection(testConfig);
}
public fetchData(connection: oracledb.IConnection):
oracledb.IPromise<oracledb.IExecuteReturn> {
return connection.execute('SELECT CURRENT_TIMESTAMP FROM dual');
}
}
async function connectAndExecute() {
let connectDao = new ConnectDAO();
try {
let connection = await connectDao.ConnectionDB();
let results = await connectDao.fetchData(connection);
console.log(`results : ${JSON.stringify(results, null, 4)}`)
} catch (err) {
console.log(`error caught ${err}`);
}
}
connectAndExecute();