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資源簡介

1、掌握C3P0數據庫連接池：C3P0是一個開源的JDBC連接池，它實現了數據源和JNDI綁定，支持JDBC3規范和JDBC2的標準擴展；

2、掌握MVC Dao模式，通過MVC DAO的設計模式，可以使項目在設計過程中結構更為明晰，并且能夠方便的進行修改。MVC是一個分層模型，即模型、視圖、控制器。DAO是一個數據庫訪問模型，隔離數據庫操作。


資源截圖

代碼片段和文件信息 

package?com.Util;
import?java.sql.*;

public?class?DbUtil{
	/**
	?*?聲明連接數據庫的信息，例如數據庫的URL、用戶名及密碼
	?*/
	private?static?final?String?url=“jdbc:mysql://localhost:3306/bookstore“;
	private?static?final?String?user=“root“;
	private?static?final?String?password=“root“;
	private?static?final?String?driver=“com.mysql.jdbc.Driver“;
	/**
	?*?聲明JDBC的相關信息
	?*/
	protected?static?Statement?s=null;
	protected?static?ResultSet?rs=null;
	protected?static?Connection?conn=null;
	/**
	?*?創建數據庫連接
	?*?@return?conn
	?*/
	?public?static?synchronized?Connection?getCon（）?throws?Exception{
		?Class.forName（driver）;?
		?Connection?conn=DriverManager.getConnection（url?user?password）;?
		?return?conn;?
		?}
?????/**
??????*?執行insertupdatedelete
??????*?@param?sql?SQL語句，字符串語句
??????*?@ret

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----
?????文件?????????880??2019-06-16?01:06??.classpath
?????文件????????1042??2019-06-16?01:06??.project
?????目錄???????????0??2020-03-27?21:13??.settings\
?????文件?????????567??2019-06-16?01:06??.settings\.jsdtscope
?????文件?????????364??2019-06-16?01:06??.settings\org.eclipse.jdt.core.prefs
?????文件?????????479??2019-06-16?01:06??.settings\org.eclipse.wst.common.component
?????文件?????????345??2019-06-16?01:06??.settings\org.eclipse.wst.common.project.facet.core.xml
?????文件??????????49??2019-06-16?01:06??.settings\org.eclipse.wst.jsdt.ui.superType.container
?????文件???????????6??2019-06-16?01:06??.settings\org.eclipse.wst.jsdt.ui.superType.name
?????目錄???????????0??2020-03-27?21:13??WebContent\
?????目錄???????????0??2020-03-27?21:13??WebContent\meta-INF\
?????文件??????????39??2019-06-16?01:06??WebContent\meta-INF\MANIFEST.MF
?????目錄???????????0??2020-03-27?21:13??WebContent\WEB-INF\
?????目錄???????????0??2020-03-27?21:13??WebContent\WEB-INF\lib\
?????文件??????610790??2019-06-16?01:06??WebContent\WEB-INF\lib\c3p0-0.9.1.2.jar
?????文件??????160519??2019-06-16?01:06??WebContent\WEB-INF\lib\commons-dbcp-1.4.jar
?????文件???????49572??2019-06-16?01:06??WebContent\WEB-INF\lib\commons-dbutils-1.4.jar
?????文件??????100472??2019-06-16?01:06??WebContent\WEB-INF\lib\commons-pool-1.5.6.jar
?????文件???????20682??2019-06-16?01:06??WebContent\WEB-INF\lib\jstl.jar
?????文件??????775688??2019-06-16?01:06??WebContent\WEB-INF\lib\mysql-connector-java-5.5.19.jar
?????文件??????393259??2019-06-16?01:06??WebContent\WEB-INF\lib\standard.jar
?????文件?????????652??2019-06-16?01:06??WebContent\WEB-INF\web.xml
?????目錄???????????0??2020-03-27?21:13??WebContent\admin\
?????目錄???????????0??2020-03-27?21:13??WebContent\admin\css\
?????文件????????2617??2019-06-16?01:06??WebContent\admin\css\ad.css
?????目錄???????????0??2020-03-27?21:13??WebContent\admin\images\
?????文件????????7535??2019-06-16?01:06??WebContent\admin\images\bt_02.jpg
?????文件??????118315??2019-06-16?01:06??WebContent\admin\images\error.jpg
?????文件?????????370??2019-06-16?01:06??WebContent\admin\images\icon1.png
?????文件????????7650??2019-06-16?01:06??WebContent\admin\images\mis_01.jpg
?????文件?????????352??2019-06-16?01:06??WebContent\admin\images\mis_05a.jpg
............此處省略157個文件信息

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