Oracle 11g Release 2 的 JDBC 连接

约定不等于承诺〃 2022-03-26 20:36 174阅读 0赞

Oracle 11g Release 2 的 JDBC 连接似乎有所不同 ，如果你收到下面的异常：   
Listener refused the connection with the following error:ORA-12505, TNS:listener does not currently know of SID given in connect descriptor.

那么你必须用下面的连接方式：

/**********************************************************************************
    * Created on Nov, 2011 Copyright(c) http://vigilance.co.in All Rights Reserved.
    ***********************************************************************************/
    package com.vigilance.java.sample;
     
    import java.sql.Connection;
    import java.sql.DriverManager;
    import java.sql.ResultSet;
    import java.sql.SQLException;
    import java.sql.Statement;
     
    /**
     * @author http://vigilance.co.in
     */
    public class ConnectJDBCOracle11g {
     
    /**
     * This class demonstrates the code for connecting Oracle 11g database using JDBC.
     * @param args
    */
    public static void main(String[] args) {
    	String JDBC_DRIVER = "oracle.jdbc.driver.OracleDriver";
    	String JDBC_STRING = "jdbc:odbc:thin:@HOSTNAME:PORTNUMBER/SID"; // in case of 11g use '/' instead of :
    	String USER_NAME = "USER_NAME";
    	String PASSWD = "PASSWORD";
    	Connection conn = null;
    	ResultSet rs = null;
    	Statement stmt = null;
    	try{
    		Class.forName(JDBC_DRIVER);
    		conn = DriverManager.getConnection(JDBC_STRING, USER_NAME, PASSWD);
    		stmt = conn.createStatement();
     
    		String query = "SELECT * FROM TABLE TBL";
    		rs = stmt.executeQuery(query);
    	}catch(SQLException sqlEx){
    		sqlEx.printStackTrace();
    	} catch (ClassNotFoundException e) {
    		e.printStackTrace();
    	} finally{
    		try {
    			if(rs!=null) rs.close();
    			if(stmt !=null) stmt.close();
    			if(conn!=null) conn.close();
    		} catch (SQLException e) {
    			e.printStackTrace();
    		}
    	}
    }
    }