1.连接MySQL数据库
驱动包:mysql-connector-java-5.1.18-bin.jar
驱动程序名:com.mysql.jdbc.Driver
连接字符串:jdbc:mysql://localhost:3306/database
1 package com.chenshuyi.dbsummary; 2 3 import java.sql.Connection; 4 import java.sql.DriverManager; 5 6 import org.junit.Test; 7 8 import junit.framework.TestCase; 9 10 public class MySQL extends TestCase { 11 12 @Test public void testConnectToMySQL() 13 { 14 String driver = "com.mysql.jdbc.Driver"; 15 String url = "jdbc:mysql://127.0.0.1:3306/chanjiayi"; 16 String user = "root"; 17 String password = "sa"; 18 try{ 19 Class.forName(driver); 20 Connection conn = DriverManager.getConnection(url, user, password); 21 22 if(conn != null) 23 { 24 System.out.println("get Connection SUCCESS !"); 25 } 26 } 27 catch(Exception e) 28 { 29 e.printStackTrace(); 30 } 31 } 32 }
2.连接SQLServer数据库
驱动包:sqljdbc.jar 或
sqljdbc4.jar
驱动程序名:com.microsoft.jdbc.sqlserver.SQLServerDriver
连接字符串:jdbc:sqlserver://localhost:1433;DatabaseName=mydb
1 package com.chenshuyi.dbsummary; 2 3 import java.sql.Connection; 4 import java.sql.DriverManager; 5 6 import org.junit.Test; 7 8 9 public class SQLServer { 10 11 @Test public void testConnectToMySQL() 12 { 13 String driver = "com.mysql.jdbc.Driver"; 14 String url = "jdbc:sqlserver://localhost:1433;DatabaseName=mydb"; //mydb为数据库名 15 String user = "sa"; 16 String password = "sa"; 17 try{ 18 Class.forName(driver); 19 Connection conn = DriverManager.getConnection(url, user, password); 20 21 if(conn != null) 22 { 23 System.out.println("get Connection SUCCESS !"); 24 } 25 } 26 catch(Exception e) 27 { 28 e.printStackTrace(); 29 } 30 } 31 }
3.连接Oracle数据库
驱动包:ojdbc4.jar
驱动程序名:oracle.jdbc.driver.OracleDriver
连接字符串:jdbc:oracle:thin:@127.0.0.1:1521:DB
(DB为要连接的数据库名)
1 package com.chenshuyi.dbsummary; 2 3 import java.sql.Connection; 4 import java.sql.DriverManager; 5 6 import org.junit.Test; 7 8 9 public class Oracle { 10 11 @Test public void testConnectToMySQL() 12 { 13 String driver = "oracle.jdbc.driver.OracleDriver"; 14 String url = "jdbc:oracle:thin:@127.0.0.1:1521:DBSummary"; 15 String user = "system"; 16 String password = "sa"; 17 try{ 18 Class.forName(driver); 19 Connection conn = DriverManager.getConnection(url, user, password); 20 21 if(conn != null) 22 { 23 System.out.println("GET Connection SUCCESS !"); 24 } 25 } 26 catch(Exception e) 27 { 28 e.printStackTrace(); 29 } 30 } 31 }
注:其中ojdbc4.jar可以在oracle安装目录下找到(例如我的就在:E:\oracle\product\10.2.0\db_1\jdbc\lib)