jdbc连接gp单例模式_JDBC连接备忘单

jdbc连接gp单例模式

抽象

这是常见数据库的JDBC连接的快速参考。我似乎必须大量查找此信息，因此我认为最好将所有参考资料放在一个地方。

德比

<dependency><groupId>org.apache.derby</groupId><artifactId>derbyclient</artifactId><version>10.11.1.1</version><scope>test</scope>
</dependency>
<dependency><groupId>org.apache.derby</groupId><artifactId>derby</artifactId><version>10.11.1.1</version><scope>test</scope>
</dependency>

嵌入式（内存中）

Class.forName("org.apache.derby.jdbc.EmbeddedDriver");String connectionUrl= "jdbc:derby:C:/My Databases/Derby/Test;user=;password=;create=true";Connection conn= DriverManager.getConnection(connectionUrl);

远程

Class.forName("org.apache.derby.jdbc.ClientDriver");String connectionUrl= "jdbc:derby://localhost:1527/widget";String user = "sa";
String pass = "sa";Connection conn= DriverManager.getConnection(connectionUrl, user, pass);

PostgeSQL

<dependency><groupId>org.postgresql</groupId><artifactId>postgresql</artifactId><version>42.1.4.jre7</version><scope>test</scope>
</dependency>

Class.forName("org.postgresql.Driver");String connectionUrl= "jdbc:postgresql://localhost:5432/widget";String user = "widgetapp";
String pass = "widgetapp";Connection conn= DriverManager.getConnection(connectionUrl, user, pass);

Oracle

从http://www.oracle.com/technetwork/database/features/jdbc/index.html下载JDBC驱动程序

<dependency><groupId>com.oracle</groupId><artifactId>ojdbc6</artifactId><version>11.2.0.4</version><scope>system</scope><systemPath>${basedir}/lib/ojdbc6.jar</systemPath>
</dependency>

Class.forName("oracle.jdbc.driver.OracleDriver");String SID= "xe";String connectionUrl= "jdbc:oracle:thin:@localhost:1521:" + SID;String user = "hr";
String pass = "hr";Connection conn= DriverManager.getConnection(connectionUrl, user, pass);