jdbc获取对各种数据库的连接

import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.sql.Statement;


public class ConnectionsManager {
Connection conn;
String user="dada";
String password="dandan";

//获取对oracle连接
public Connection getOracleConn() throws Exception {
String url="jdbc:oracle:thin:@127.0.0.1:1521:dandan";
Class.forName("oracle.jdbc.driver.OracleDriver");
conn=DriverManager.getConnection(url,user,password);
return conn;
}

//获取mysql连接
public Connection getMysqlConn() throws Exception {
String url="jdbc:mysql://127.0.0.1/dandan";
Class.forName("org.gjt.mm.mysql.Driver");
conn=DriverManager.getConnection(url,user,password);
return conn;
}

//获取sqlServer连接
public Connection getSqlServerConn() throws Exception {
String url="com.microsoft.jdbc.sqlserver.SQLServerDriver";
Class.forName("com.microsoft.jdbc.sqlserver.SQLServerDriver");  
conn = DriverManager.getConnection 
 (url,user,password);
return conn;
}

//获取Odbc连接
public Connection getOdbcConn() throws Exception {
String url="jdbc:odbc:ExcelODBC1";
Class.forName("sun.jdbc.odbc.JdbcOdbcDriver"); 
conn = DriverManager.getConnection(url, user, password); 
return conn;

//需要注意的是,在使用ODBC进行查询的时候,跟标准的sql有一些不同
//需要使用"[]"把要查询的表名字给括起来
// Statement stmt=con.createStatement();
//    ResultSet rs=stmt.executeQuery("select * from [Sheet1$]");
}

//获取Access连接
public Connection getAccessConn() throws Exception {
String url="jdbc:odbc:test";
Class.forName("sun.jdbc.odbc.JdbcOdbcDriver"); 
conn = DriverManager.getConnection(url, user, password); 
return conn; 
}

//通过Odbc获取sqlServer连接
public Connection getSqlServerConn1() throws Exception {
String url="jdbc:odbc:mydb1";
Class.forName("sun.jdbc.odbc.JdbcOdbcDriver"); 
conn = DriverManager.getConnection(url, user, password); 
//Connection con = DriverManager.getConnection("jdbc:odbc:mydb1;database=pubs", "", ""); 
return conn;
}

}