jdbc driver 4种类型及常见jdbc连接字符串

1： jdbc driver 4种类型
     Type1：借助于JDBC-odbc桥接方式连接oracle，可移植性差
     Type2:oracle oci ： 可移植性比较差，要依赖于oracle的oci（客户端）的安装
但是可以获得更高的效率。效率应该是最快的。
     Type3:主要用在中间件，提供数据连接池的服务。如使用tomcat 连接池。
     Type:4class14.jar 直接用来连接数据库，移植性最好。
详细见JDBC3.0规范54页 jdbc-3_0-fr-spec.pdf
详细见JDBC4.0规范41页 jdbc-4_0-fr-spec.pdf
http://cds.sun.com/is-bin/INTERSHOP.enfinity/WFS/CDS-CDS_JCP-Site/en_US/-/USD/VerifyItem-Start/jdbc-4_0-fr-spec.zip?BundledLineItemUUID=YHJIBe.l_4QAAAEh7wA_7HAC&OrderID=kvRIBe.lff0AAAEh4AA_7HAC&ProductID=nC3ACUFBfqQAAAEYHrk5AXuy&FileName=/jdbc-4_0-fr-spec.zip


常见jdbc连接字符串
1. MySQL(http://www.mysql.com)mm.mysql-2.0.2-bin.jar ;
Class.forName( "org.gjt.mm.mysql.Driver" );
cn = DriverManager.getConnection( "jdbc:mysql://MyDbComputerNameOrIP:3306/myDatabaseName", sUsr, sPwd );
2. PostgreSQL(http://www.de.postgresql.org)pgjdbc2.jar ;
Class.forName( "org.postgresql.Driver" );
cn = DriverManager.getConnection( "jdbc:postgresql://MyDbComputerNameOrIP/myDatabaseName", sUsr, sPwd );
3. Oracle(http://www.oracle.com/ip/deploy/database/oracle9i/)classes12.zip ;
Class.forName( "oracle.jdbc.driver.OracleDriver" );
cn = DriverManager.getConnection( "jdbc:oracle:thin:@MyDbComputerNameOrIP:1521:ORCL", sUsr, sPwd );
4. Sybase(http://jtds.sourceforge.net)jconn2.jar ;
Class.forName( "com.sybase.jdbc2.jdbc.SybDriver" );
cn = DriverManager.getConnection( "jdbc:sybase:Tds:MyDbComputerNameOrIP:2638", sUsr, sPwd );
// (Default-Username/Password: "dba"/"sql")
5. Microsoft SQLServer(http://jtds.sourceforge.net) ;
Class.forName( "net.sourceforge.jtds.jdbc.Driver" );
cn = DriverManager.getConnection( "jdbc:jtds:sqlserver://MyDbComputerNameOrIP:1433/master", sUsr, sPwd );
6. Microsoft SQLServer(http://www.microsoft.com) ;
Class.forName( "com.microsoft.jdbc.sqlserver.SQLServerDriver" );
cn = DriverManager.getConnection( "jdbc:microsoft:sqlserver://MyDbComputerNameOrIP:1433;databaseName=master", sUsr, sPwd );
7. ODBC
Class.forName( "sun.jdbc.odbc.JdbcOdbcDriver" );
Connection cn = DriverManager.getConnection( "jdbc:odbc:" + sDsn, sUsr, sPwd );
8.DB2
Class.forName("Com.ibm.db2.jdbc.net.DB2Driver");
String url="jdbc:db2://192.9.200.108:6789/SAMPLE"
cn = DriverManager.getConnection( url, sUsr, sPwd );