常用的JDBC连接数据库方法
常用JDBC连接数据库方法总结如下：1、Oracle8/8i/9i/10g数据库（thin模式）
public static final String DBDRIVER = "oracle.jdbc.driver.OracleDriver"; // 数据库驱动名public static final String DBURL = "jdbc:oracle:thin:@localhost:1521:orcl"; // orcl为数据库的SIDpublic static final String DBUSER = "scott"; // 登录数据库账号public static final String DBPASSWORD = "tiger"; // 登录密码String sql = "......";// 1. 加载驱动程序Class.forName(DBDRIVER);// 2. 获取数据库的连接Connection conn = DriverManager.getConnection(DBURL, DBUSER, DBPASSWORD);// 3. 获取表达式,执行sqlPreparedStatement pstmt = conn.preparedStatement(sql);// 4. 获取结果集ResultSet rs = pstmt.executeQuery();// 5. 显示结果集whlie(rs.next()) { System.out.println("属性1:"); System.out.println("属性2:");}// 6. 释放资源rs.close();pstmt.close();conn.close();
2、Sql Server2000/2005数据库
public static final String DBDRIVER = "com.microsoft.jdbc.sqlserver.SQLServerDriver"; // 数据库驱动名(2000)public static final String DBDRIVER = "com.microsoft.sqlserver.jdbc.SQLServerDriver"; // 数据库驱动名(2005)public static final String DBURL = "jdbc:microsoft:sqlserver://localhost:1433; DatabaseName=sql2000"; // sql2000为数据库(2000)public static final String DBURL = "jdbc:sqlserver://localhost:1433; DatabaseName=sql2000"; // sql2000为数据库(2005)public static final String DBUSER = "sa"; // 登录数据库账号public static final String DBPASSWORD = ""; // 登录密码String sql = "......";// 1. 加载驱动程序Class.forName(DBDRIVER);// 2. 获取数据库的连接Connection conn = DriverManager.getConnection(DBURL, DBUSER, DBPASSWORD);// 3. 获取表达式,执行sqlPreparedStatement pstmt = conn.preparedStatement(sql);// 4. 获取结果集ResultSet rs = pstmt.executeQuery();// 5. 显示结果集whlie(rs.next()) { System.out.println("属性1:"); System.out.println("属性2:");}// 6. 释放资源rs.close();pstmt.close();conn.close();
3、MySQL数据库
public static final String DBDRIVER = "org.gjt.mm.mysql.Driver"; // 数据库驱动名public static final String DBURL = "jdbc:mysql://localhost:1433/sample"; // sample为数据库的SIDpublic static final String DBUSER = "root"; // 登录数据库账号public static final String DBPASSWORD = ""; // 登录密码String sql = "......";// 1. 加载驱动程序Class.forName(DBDRIVER);// 2. 获取数据库的连接Connection conn = DriverManager.getConnection(DBURL, DBUSER, DBPASSWORD);// 3. 获取表达式,执行sqlPreparedStatement pstmt = conn.preparedStatement(sql);// 4. 获取结果集ResultSet rs = pstmt.executeQuery();// 5. 显示结果集whlie(rs.next()) { System.out.println("属性1:"); System.out.println("属性2:");}// 6. 释放资源rs.close();pstmt.close();conn.close();
4、DB2数据库
public static final String DBDRIVER = "com.ibm.db2.jdbc.app.DB2Driver"; // 数据库驱动名public static final String DBURL = "jdbc:db2://localhost:5000/sample"; // sample为数据库的SIDpublic static final String DBUSER = "admin"; // 登录数据库账号public static final String DBPASSWORD = ""; // 登录密码String sql = "......";// 1. 加载驱动程序Class.forName(DBDRIVER);// 2. 获取数据库的连接Connection conn = DriverManager.getConnection(DBURL, DBUSER, DBPASSWORD);// 3. 获取表达式,执行sqlPreparedStatement pstmt = conn.preparedStatement(sql);// 4. 获取结果集ResultSet rs = pstmt.executeQuery();// 5. 显示结果集whlie(rs.next()) { System.out.println("属性1:"); System.out.println("属性2:");}// 6. 释放资源rs.close();pstmt.close();conn.close();
5、Sybase数据库
public static final String DBDRIVER = "("com.sybase.jdbc.SybDriver"; // 数据库驱动名public static final String DBURL = "jdbc:sybase:Tds:localhost:5007/sample"; // sample为数据库的SIDpublic static final String DBUSER = "admin"; // 登录数据库账号public static final String DBPASSWORD = ""; // 登录密码Properties sysProps = System.getProperties(); SysProps.put("user", DBUSER); SysProps.put("password", DBPASSWORD); String sql = "......";// 1. 加载驱动程序Class.forName(DBDRIVER);// 2. 获取数据库的连接Connection conn = DriverManager.getConnection(DBURL, sysProps);// 3. 获取表达式,执行sqlPreparedStatement pstmt = conn.preparedStatement(sql);// 4. 获取结果集ResultSet rs = pstmt.executeQuery();// 5. 显示结果集whlie(rs.next()) { System.out.println("属性1:"); System.out.println("属性2:");}// 6. 释放资源rs.close();pstmt.close();conn.close();
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