我正在创建一个连接到多个数据库的Java应用程序.用户将能够从下拉框中选择要连接的数据库.
然后,程序通过将名称传递给创建初始上下文的方法来连接到数据库,以便它可以与oracle Web逻辑数据源进行通信.
public class dbMainConnection {
private static dbMainConnection conn = null;
private static java.sql.Connection dbConn = null;
private static javax.sql.DataSource ds = null;
private static Logger log = LoggerUtil.getLogger();
private dbMainConnection(String database) {
try {
Context ctx = new InitialContext();
if (ctx == null) {
log.info("JDNI Problem, cannot get InitialContext");
}
database = "jdbc/" + database;
log.info("This is the database string in DBMainConnection" + database);
ds = (javax.sql.DataSource) ctx.lookup (database);
} catch (Exception ex) {
log.error("eMTSLogin: Error in
