写个一个简单的web项目,把前端技术:html、css、JavaScript、jQuery，ajax，bootstrop等都放在...

package hs.util; import java.sql.Connection; import java.sql.DriverManager; import java.sql.ResultSet; import java.sql.SQLException; import java.sql.Statement; public class JDBC { /** * 获取Connection对象 * @return */ public static Connection getConnection() { try { Class.forName("com.mysql.jdbc.Driver"); return DriverManager.getConnection("jdbc:mysql://localhost:3306/webpage","root","123456"); } catch (Exception e) { e.printStackTrace(); } return null; } /** * 关闭 ResultSet Statement Connection * @param rs * @param ps * @param c */ public static void close(ResultSet rs,Statement ps,Connection c){ try { if(rs!=null){ rs.close(); } } catch (SQLException e) { e.printStackTrace(); } try { if( ps!=null){ ps.close(); } } catch (SQLException e) { e.printStackTrace(); } try { if(c!=null){ c.close(); } }catch (SQLException e) { e.printStackTrace(); } } /** * 关闭Statement Connection * @param ps * @param c */ public static void close(Statement ps,Connection c){ try { if( ps!=null){ ps.close(); } } catch (SQLException e) { e.printStackTrace(); } try { if(c!=null){ c.close(); } }catch (SQLException e) { e.printStackTrace(); } } /** * 关闭Connection * @param c */ public static void close(Connection c){ try { if(c!=null){ c.close(); } }catch (SQLException e) { e.printStackTrace(); } } }