package?com.ch7.common;
import?java.sql.*;

public?class?Conn?{
	Connection?conn?=?null;
	Statement?stmt?=?null;
	ResultSet?rs?=?null;
	
	public?Conn（）?{
		try?{
			Class.forName（“com.mysql.jdbc.Driver“）;
		}?catch?（java.lang.ClassNotFoundException?e）?{
			System.err.println（e.getMessage（））;
		}
	}
	
	public?ResultSet?executeQuery（String?sql）?{
		try?{
			conn?=?DriverManager.getConnection（“jdbc:mysql://127.0.0.1:3306/bookdb?characterEncoding=UTF-8““root“?“admin“）;
			stmt?=?conn.createStatement（）;
			rs?=?stmt.executeQuery（sql）;
		}?catch?（SQLException?ex）?{
			System.err.println（ex.getMessage（））;
		}
		return?rs;
	}
	
	public?int?executeUpdate（String?sql）?{
		int?result?=?0;
		try?{
			conn?=?DriverManager.getConnection（“jdbc:mysql://127.0.0.1:3306/bookdb?characterEncoding=UTF-8““root“?“admin“）;
			stmt?=?conn.createStatement（ResultSet.TYPE_SCROLL_INSENSITIVE
					ResultSet.CONCUR_READ_ONLY）;
			result?=?stmt.executeUpdate（sql）;
		}?catch?（SQLException?ex）?{
			result?=?0;
		}
		return?result;
	}

	
	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??2016-05-19?16:17??Read\
?????文件?????????529??2016-05-19?16:17??Read\.classpath
?????文件????????1329??2016-05-19?16:17??Read\.project
?????目錄???????????0??2016-05-19?16:17??Read\.settings\
?????文件?????????522??2016-05-19?16:17??Read\.settings\.jsdtscope
?????文件?????????101??2016-05-19?16:17??Read\.settings\com.genuitec.eclipse.core.prefs
?????文件?????????202??2016-05-19?16:17??Read\.settings\org.eclipse.core.resources.prefs
?????文件?????????364??2016-05-19?16:17??Read\.settings\org.eclipse.jdt.core.prefs
?????文件?????????471??2016-05-19?16:17??Read\.settings\org.eclipse.wst.common.component
?????文件?????????358??2016-05-19?16:17??Read\.settings\org.eclipse.wst.common.project.facet.core.xml
?????文件??????????49??2016-05-19?16:17??Read\.settings\org.eclipse.wst.jsdt.ui.superType.container
?????文件???????????6??2016-05-19?16:17??Read\.settings\org.eclipse.wst.jsdt.ui.superType.name
?????目錄???????????0??2016-05-19?16:17??Read\src\
?????目錄???????????0??2016-05-19?16:17??Read\src\com\
?????目錄???????????0??2016-05-19?16:17??Read\src\com\ch7\
?????目錄???????????0??2016-05-19?16:17??Read\src\com\ch7\common\
?????文件????????1449??2016-05-19?16:17??Read\src\com\ch7\common\Conn.java
?????文件????????2312??2016-05-19?16:17??Read\src\com\ch7\common\DataConverter.java
?????文件????????3795??2016-05-19?16:17??Read\src\com\ch7\common\DataValidator.java
?????文件????????1401??2016-05-19?16:17??Read\src\com\ch7\common\MD5.java
?????文件????????2308??2016-05-19?16:17??Read\src\com\ch7\common\Utility.java
?????目錄???????????0??2016-05-19?16:17??Read\src\com\ch7\dal\
?????文件????????8724??2016-05-19?16:17??Read\src\com\ch7\dal\Blog.java
?????文件????????2195??2016-05-19?16:17??Read\src\com\ch7\dal\Class.java
?????文件????????3656??2016-05-19?16:17??Read\src\com\ch7\dal\Comment.java
?????文件????????3869??2016-05-19?16:17??Read\src\com\ch7\dal\Users.java
?????目錄???????????0??2016-05-19?16:17??Read\src\com\ch7\model\
?????文件????????1296??2016-05-19?16:17??Read\src\com\ch7\model\BlogInfo.java
?????文件?????????428??2016-05-19?16:17??Read\src\com\ch7\model\ClassInfo.java
?????文件?????????831??2016-05-19?16:17??Read\src\com\ch7\model\CommentInfo.java
?????文件?????????804??2016-05-19?16:17??Read\src\com\ch7\model\ContextInfo.java
............此處省略571個文件信息