Java链接Oracle

首先在Navicat里面链接Oracle:

连接时老报错:ORA-12505, TNS:listener does not currently know of SID given in connect descript....

一开始以为是listener的问题,尝试了很多还是不行。解决步骤如下:

这个文件(在你的

host改成你的IP

连接代码:

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package com.sql.util;
 
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.sql.Statement;
 
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;
  
public class DBUtil {
  
 // 创建一个数据库连接
    public static Connection getConnection()
    {
         Connection connection = null;
         String USERNAMR = "ABC";
         String PASSWORD = "*****";//自己的密码
         String DRVIER = "oracle.jdbc.OracleDriver";
         String URL = "jdbc:ora:thin:@localhost:1521:ORCL";
        try {
            System.out.println("尝试输出!");
            Class.forName(DRVIER);
            System.out.println("马佳慧无敌!");
            connection = DriverManager.getConnection(URL, USERNAMR, PASSWORD);
            System.out.println("成功连接数据库");
        } catch (ClassNotFoundException e) {
            throw new RuntimeException(e);
        } catch (SQLException e) {
            throw new RuntimeException(e);
        }
   
        return connection;
    }
    //关闭资源
    public static void close(Statement state, Connection con) {
        if (state != null) {
            try {
                state.close();
            } catch (SQLException e) {
                // TODO Auto-generated catch block
                e.printStackTrace();
            }
        }
 
        if (con != null)
            try {
                con.close();
            } catch (SQLException e) {
                // TODO Auto-generated catch block
                e.printStackTrace();
            }
    }
 
    /**
     * 关闭数据库的连接对象,SQL语句对象,查询结果集对象
     *
     * @param rs
     *            结果集对象
     * @param state
     *            Statement对象
     * @param con
     *            Connection对象
     */
    public static void close(ResultSet rs, java.sql.Statement state, Connection con) {
 
        if (rs != null)
            try {
                rs.close();
            } catch (SQLException e) {
                // TODO Auto-generated catch block
                e.printStackTrace();
            }
        if (state != null)
            try {
                state.close();
            } catch (SQLException e) {
                // TODO Auto-generated catch block
                e.printStackTrace();
            }
        if (con != null)
            try {
                con.close();
            } catch (SQLException e) {
                // TODO Auto-generated catch block
                e.printStackTrace();
            }
 
    }
  
}

  注意的地方:那里要写ORCL。原因是数据库服务器的名称写错了:

完美解决:

 

posted @   小程大序的猿  阅读(449)  评论(0编辑  收藏  举报
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