package?com.ch7.common;
import?java.sql.*;
/**
?*?數據庫連接類
?*/
public?class?Conn?{
	Connection?conn?=?null;
	Statement?stmt?=?null;
	ResultSet?rs?=?null;
	/**
	?*?加載驅動程序
	?*?*/
	public?Conn（）?{
		try?{
			Class.forName（“com.mysql.jdbc.Driver“）;
		}?catch?（java.lang.ClassNotFoundException?e）?{
			System.err.println（e.getMessage（））;
		}
	}
	/**
	?*?執行查詢操作：select
	?*?*/
	public?ResultSet?executeQuery（String?sql）?{
		try?{
			conn?=?DriverManager
					.getConnection（
							“jdbc:mysql://localhost:3306/blogdb?useUnicode=true&characterEncoding=UTF-8“
							“root“?null）;
			stmt?=?conn.createStatement（）;
			rs?=?stmt.executeQuery（sql）;
		}?catch?（SQLException?ex）?{
			System.err.println（ex.getMessage（））;
		}
		return?rs;
	}
	/**
	?*?執行更新操作：insert、update、delete
	?*?*/
	public?int?executeUpdate（String?sql）?{
		int?result?=?0;
		try?{
			conn?=?DriverManager
					.getConnection（
							“jdbc:mysql://localhost:3306/blogdb?useUnicode=true&characterEncoding=UTF-8“
							“root“?null）;
			stmt?=?conn.createStatement（ResultSet.TYPE_SCROLL_INSENSITIVE
					ResultSet.CONCUR_READ_ONLY）;
			result?=?stmt.executeUpdate（sql）;
		}?catch?（SQLException?ex）?{
			result?=?0;
		}
		return?result;
	}

	/**
	?*?關閉數據庫連接
	?*?*/
	public?void?close（）?{
		try?{
			if?（rs?!=?null）
				rs.close（）;
		}?catch?（Exception?e）?{
			e.printStackTrace（System.err）;
		}
		try?{
			if?（stmt?!=?null）
				stmt.close（）;
		}?catch?（Exception?e）?{
			e.printStackTrace（System.err）;
		}
		try?{
			if?（conn?!=?null）?{
				conn.close（）;
			}
		}?catch?（Exception?e）?{
			e.printStackTrace（System.err）;
		}
	}
}

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----
?????目錄???????????0??2014-03-06?14:08??blog\
?????文件?????????932??2013-11-04?09:48??blog\.classpath
?????目錄???????????0??2014-03-06?14:08??blog\.myeclipse\
?????文件?????????285??2013-11-04?09:09??blog\.mymetadata
?????文件????????1277??2013-11-06?09:26??blog\.project
?????目錄???????????0??2014-03-06?14:08??blog\.settings\
?????文件?????????330??2013-11-04?09:09??blog\.settings\org.eclipse.jdt.core.prefs
?????目錄???????????0??2014-03-06?14:08??blog\WebRoot\
?????目錄???????????0??2014-03-06?14:08??blog\WebRoot\meta-INF\
?????文件??????????36??2013-11-04?09:09??blog\WebRoot\meta-INF\MANIFEST.MF
?????目錄???????????0??2014-03-06?14:08??blog\WebRoot\WEB-INF\
?????目錄???????????0??2014-03-06?14:08??blog\WebRoot\WEB-INF\classes\
?????目錄???????????0??2014-03-06?14:08??blog\WebRoot\WEB-INF\classes\com\
?????目錄???????????0??2014-03-06?14:08??blog\WebRoot\WEB-INF\classes\com\ch7\
?????目錄???????????0??2014-03-06?14:08??blog\WebRoot\WEB-INF\classes\com\ch7\common\
?????文件????????2207??2013-11-06?10:37??blog\WebRoot\WEB-INF\classes\com\ch7\common\Conn.class
?????文件????????1771??2013-11-06?09:11??blog\WebRoot\WEB-INF\classes\com\ch7\common\DataConverter.class
?????文件????????2246??2013-11-06?09:11??blog\WebRoot\WEB-INF\classes\com\ch7\common\DataValidator.class
?????文件????????1750??2013-11-06?09:12??blog\WebRoot\WEB-INF\classes\com\ch7\common\MD5.class
?????文件????????2972??2013-11-06?09:11??blog\WebRoot\WEB-INF\classes\com\ch7\common\Utility.class
?????目錄???????????0??2014-03-06?14:08??blog\WebRoot\WEB-INF\classes\com\ch7\dal\
?????文件?????????261??2013-11-04?09:48??blog\WebRoot\WEB-INF\classes\com\ch7\dal\Blog.class
?????文件?????????264??2013-11-04?09:48??blog\WebRoot\WEB-INF\classes\com\ch7\dal\Class.class
?????文件?????????270??2013-11-04?09:48??blog\WebRoot\WEB-INF\classes\com\ch7\dal\Comment.class
?????文件????????1101??2013-11-06?10:30??blog\WebRoot\WEB-INF\classes\com\ch7\dal\Users.class
?????目錄???????????0??2014-03-06?14:08??blog\WebRoot\WEB-INF\classes\com\ch7\model\
?????文件????????1400??2013-11-04?09:48??blog\WebRoot\WEB-INF\classes\com\ch7\model\BlogInfo.class
?????文件?????????925??2013-11-04?09:48??blog\WebRoot\WEB-INF\classes\com\ch7\model\ClassInfo.class
?????文件????????1415??2013-11-04?09:48??blog\WebRoot\WEB-INF\classes\com\ch7\model\CommentInfo.class
?????文件????????1156??2013-11-04?09:48??blog\WebRoot\WEB-INF\classes\com\ch7\model\UsersInfo.class
?????文件??????????74??2013-11-04?09:57??blog\WebRoot\WEB-INF\classes\fckeditor.properties
............此處省略519個文件信息