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  Connect to the Oracle Database Help class
  Add Date : 2017-08-31      
  Connect Oracle Database Help class, is to connect the Oracle database method encapsulation, you only need to call in other pages, do not need to repeat the write.

Import java.sql.Connection;
Import java.sql.DriverManager;
Import java.sql.SQLException;

Import oracle.jdbc.driver.OracleDriver;

/ **
 * Database connection help class
 * /
Public class DbHelp {

    / *
    * Database connection
    * /
    Public static Connection lianjie () {
        // Database configuration
        String driver = "oracle.jdbc.driver.OracleDriver"; // driver
        String url = "jdbc: oracle: thin: @localhost: 1521: JBITDB";
        String user = "epet";
        String pwd = "123456";
        Try {
            // Step 1: Load the driver
            Class.forName (driver); // -> Reflection
            Connection conn = DriverManager.getConnection (url, user, pwd);
            Return conn;
        } Catch (ClassNotFoundException e) {
            E.printStackTrace ();
        } Catch (SQLException e) {
            E.printStackTrace ();
          Return null;
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