java 数据库操作类
发布时间:2020-12-14 23:38:23 所属栏目:Java 来源:网络整理
导读:今天PHP站长网 52php.cn把收集自互联网的代码分享给大家,仅供参考。 import java.sql.Connection;import java.sql.DriverManager;import java.sql.ResultSet;import java.sql.SQLException;import java.sql.Statement;im
以下代码由PHP站长网 52php.cn收集自互联网 现在PHP站长网小编把它分享给大家,仅供参考 import java.sql.Connection; import java.sql.DriverManager; import java.sql.ResultSet; import java.sql.SQLException; import java.sql.Statement; import java.util.Properties; import javax.naming.Context; import javax.naming.InitialContext; import javax.naming.NamingException; import javax.sql.DataSource; import org.apache.log4j.Logger; public class DBConnection { /** * @param path * @return Connection * wgy */ public static Connection getConn(String classDriver,String url,String user,String pwd) { try { Class.forName(classDriver); return DriverManager.getConnection(url,user,pwd); } catch (ClassNotFoundException ex) { ex.printStackTrace(); } catch (SQLException ex) { ex.printStackTrace(); } return null; } public static Connection getConn(DataSource dataSource) { try { return dataSource.getConnection(); } catch (SQLException ex) { ex.printStackTrace(); } return null; } public static Connection getConn(String jndiName) { try { Context ctx; ctx = new InitialContext(); DataSource dataSource = (DataSource) ctx.lookup("java:comp/env/" + jndiName); return dataSource.getConnection(); } catch (NamingException ex) { ex.printStackTrace(); } catch (SQLException ex) { ex.printStackTrace(); } return null; } public static Connection getConn(Properties properties) { try { String driver = properties.getProperty("jdbc.driverClassName"); String url = properties.getProperty("jdbc.url"); String user = properties.getProperty("jdbc.username"); String password = properties.getProperty("jdbc.password"); Class.forName(driver); return DriverManager.getConnection(url,password); } catch (ClassNotFoundException ex) { ex.printStackTrace(); } catch (SQLException ex) { ex.printStackTrace(); } return null; } /** * oracle * * @param path * @return Connection */ public static Connection getOracleConn(String url,String pwd) { try { Class.forName("oracle.jdbc.driver.OracleDriver"); return DriverManager.getConnection(url,pwd); } catch (ClassNotFoundException ex) { ex.printStackTrace(); } catch (SQLException ex) { ex.printStackTrace(); } return null; } /** * mysql * * @param path * @return Connection */ public static Connection getMysqlConn(String url,String pwd) { try { Class.forName("com.mysql.jdbc.Driver"); return DriverManager.getConnection(url,pwd); } catch (ClassNotFoundException ex) { ex.printStackTrace(); } catch (SQLException ex) { ex.printStackTrace(); } return null; } /** * Access???? * * @param path * @return Connection */ public static Connection getAccessConn(String path) { try { Class.forName("sun.jdbc.odbc.JdbcOdbcDriver"); String url = "jdbc:odbc:Driver={MicroSoft Access Driver (*.mdb)};DBQ=" + path; return DriverManager.getConnection(url,"",""); } catch (ClassNotFoundException ex) { ex.printStackTrace(); } catch (SQLException ex) { ex.printStackTrace(); } return null; } public static void close(Object... objects) { try { for (Object object : objects) { if (object != null) { if (object instanceof ResultSet) { ResultSet rs = (ResultSet) object; rs.close(); log.info("ResultSet close"); } else if (object instanceof Statement) { Statement stmt = (Statement) object; stmt.close(); log.info("Statement close"); } else if (object instanceof Connection) { Connection conn = (Connection) object; conn.close(); log.info("Connection close"); } } } } catch (SQLException e) { e.printStackTrace(); } } private static Logger log = Logger.getRootLogger(); } 以上内容由PHP站长网【52php.cn】收集整理供大家参考研究 如果以上内容对您有帮助,欢迎收藏、点赞、推荐、分享。 (编辑:李大同) 【声明】本站内容均来自网络,其相关言论仅代表作者个人观点,不代表本站立场。若无意侵犯到您的权利,请及时与联系站长删除相关内容! |
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