datasourcesupport.java

来自「< JAVA ME 手机应用开发技术月案例详解>>一书中的一个」· Java 代码 · 共 41 行

package newsserver;

import javax.naming.*;
import javax.naming.Context;
import javax.sql.*;

/**
 * <p>Title: </p>
 *
 * <p>Description: server for news</p>
 *
 * <p>Copyright: Copyright (c) 2005</p>
 *
 * <p>Company: </p>
 *
 * @author wenyang
 * @version 2.0
 */
public class DataSourceSupport {
    private static DataSourceSupport instance = new DataSourceSupport();
    private DataSource ds;
    private DataSourceSupport() {
        try {
            //得到数据源
            Context initCtx = new InitialContext();
            Context envCtx = (Context) initCtx.lookup("java:comp/env");
            ds = (DataSource) envCtx.lookup("jdbc/news");
        } catch (Exception e) {
            System.out.println("数据源连接失败");
        }
    }

    public static DataSourceSupport getInstance() {
        return instance;
    }

    public DataSource getDataSource() {
        return ds;
    }
}