datasourceclient.java

来自「此程序都是企业级 的数据库开发程序 全面揭示了JAVA对数据库的操作」· Java 代码 · 共 40 行

package datasource;

import java.sql.*;
import javax.sql.*;
import javax.naming.*;
import java.util.*;
import COM.cloudscape.core.*;

public class DataSourceClient {
  Connection conn;
  static ResourceBundle bundle = ResourceBundle.getBundle("MusicStore");
  BasicDataSource dataSource;

  public DataSourceClient() {
    Context context;

    try {

      // create and store parameters which are used to create the context
      Hashtable env = new Hashtable();
      env.put(Context.INITIAL_CONTEXT_FACTORY, 
              bundle.getString("datasource.factory"));
      env.put(Context.PROVIDER_URL, bundle.getString("datasource.url"));

      // create the context
      context = new InitialContext(env);

      // call method to get DataSource and Connection
      String bindName = bundle.getString("datasource.bindname");
      dataSource = (BasicDataSource) context.lookup(bindName);
    } catch (Exception e) {
      e.printStackTrace();
    } 
  }

  public Connection getConnection() throws SQLException {
    return dataSource.getConnection();
  } 
}