Java:JDBC连接数据库大全
import java.sql.*
1、Oracle8/8i/9i数据库(thin模式)
Class.forName("oracle.jdbc.driver.OracleDriver").newInstance();
String url="jdbc:oracle:thin:@localhost:1521:orcl"; //orcl为数据库的SID
String user="test";
String password="test";
Connection conn= DriverManager.getConnection(url,user,password);
2、DB2数据库
Class.forName("com.ibm.db2.jdbc.app.DB2Driver ").newInstance();
String url="jdbc:db2://localhost:5000/sample"; //sample为你的数据库名
String user="admin";
String password="";
Connection conn= DriverManager.getConnection(url,user,password);
3、Sql Server7.0/2000数据库
Class.forName("com.microsoft.jdbc.sqlserver.SQLServerDriver").newInstance();
String url="jdbc:microsoft:sqlserver://localhost:1433;DatabaseName=mydb";
//mydb为数据库
String user="sa";
String password="";
Connection conn= DriverManager.getConnection(url,user,password);
4、Sybase数据库
Class.forName("com.sybase.jdbc.SybDriver").newInstance();
String url =" jdbc:sybase:Tds:localhost:5007/myDB";//myDB为你的数据库名
Properties sysProps = System.getProperties();
SysProps.put("user","userid");
SysProps.put("password","user_password");
Connection conn= DriverManager.getConnection(url, SysProps);
5、Informix数据库
Class.forName("com.informix.jdbc.IfxDriver").newInstance();
String url =
"jdbc:informix-sqli://123.45.67.89:1533/myDB:INFORMIXSERVER=myserver;
user=testuser;password=testpassword"; //myDB为数据库名
Connection conn= DriverManager.getConnection(url);
6、MySQL数据库
Class.forName("org.gjt.mm.mysql.Driver").newInstance();
String url ="jdbc:mysql://localhost/myDB?user=soft&password=soft1234&useUnicode=true&characterEncoding=8859_1"
//myDB为数据库名
Connection conn= DriverManager.getConnection(url);
7、PostgreSQL数据库
Class.forName("org.postgresql.Driver").newInstance
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连接 MySQL 数据库试例
import java.sql.*;
/**
* 第一个 JDBC 的程序 MySQL数据库访问
* @author lzcysd
* @version 1.0 2008/9/26
*/
public class MySQLTest {
/**
* @param args
* @throws SQLException
*/
public static void main(String[] args) throws SQLException {
//1.注册驱动
try {
Class.forName("org.gjt.mm.mysql.Driver"); //MySql的驱动
} catch (ClassNotFoundException e) {
System.out.println("注册驱动出错!" + e);
}
//2.获取数据库的连接 (打开数据库)
//java.sql.Connection conn = java.sql.DriverManager.getConnection("jdbc:mysql://localhost/user?user=admin&password=admin&useUnicode=true&characterEncoding=GBK");
Connection conn = DriverManager.getConnection("jdbc:mysql://localhost/test?&useUnicode=true&characterEncoding=GBK", "root", null);
//test为数据库名
//3.获取表达式 (打开表)
Statement stmt = conn.createStatement();
//4.执行SQL
ResultSet rs = stmt.executeQuery("select * from user");
//5.显示结果集中的数据
while(rs.next()){
System.out.println("ID = " + rs.getInt(1)); //读取第一列
System.out.println("用户名 " + rs.getString("username")); //读取列名为username的列
System.out.println("密码 " + rs.getString("password")); //读取列名为password的列
System.out.println("年龄 " + rs.getString("age"));
}
//5.执行插入数据的操作
//stmt.executeUpdate("insert into user values(110,'张园妮','123456',19)");
//6.释放资源
rs.close();
stmt.close();
conn.close();
}
}