91av视频/亚洲h视频/操亚洲美女/外国一级黄色毛片 - 国产三级三级三级三级

  • 大小: 3.01MB
    文件類型: .zip
    金幣: 2
    下載: 0 次
    發布日期: 2023-10-27
  • 語言: Java
  • 標簽: tomcat??jsp??MYSQL??SERVLET??web??

資源簡介

管理員使用姓名和密碼登錄學生管理系統,在系統主界面選擇錄入、修改、刪除、查詢學生信息進行相應修改,點擊退出返回到登錄頁面,比較基礎,代碼簡單易懂,但是不易出錯,適用于課后作業。只有管理員用戶可以操作,有管理員和學生信息兩張表。開發環境使用tomcat7.0,jdk1.7,MYSQL數據庫,sql文件已給,還有程序說明,課程文檔,適合自用。

資源截圖

代碼片段和文件信息

package?com.jkxy.conn;

import?java.sql.Connection;
import?java.sql.DriverManager;
import?java.sql.PreparedStatement;
import?java.sql.ResultSet;
import?java.sql.SQLException;

public?class?DBConn?{
private?static?String?DRIVER?=?“com.mysql.jdbc.Driver“;
private?static?String?URL?=?“jdbc:mysql://localhost:3306/student?useUnicode=true&characterEncoding=UTF-8“;
private?static?String?USER?=?“root“;
private?static?String?PASSWORD?=?“123“;
private?static?DBConn?dbConn?=?null;
private?Connection?conn?=?null;

//?//鍗曚緥妯″紡

//?/縐佹湁鏋勯?鏂規硶
public?DBConn()?{
try?{
Class.forName(DRIVER);
}?catch?(Exception?e)?{
e.printStackTrace();
}
}

public?static?DBConn?getInstance()?{
if?(dbConn?==?null)?{
dbConn?=?new?DBConn();
}
return?dbConn;
}

public?Connection?getConnection()?{
try?{
conn?=?DriverManager.getConnection(URL?USER?PASSWORD);

}?catch?(Exception?e)?{
e.printStackTrace();
}
return?conn;
}
////闈欐?鍏抽棴榪炴帴鐨勬柟娉?
public?static?void?closeConnection(ResultSet?rs?PreparedStatement?pstmt?Connection?conn){
if?(rs?!=?null){
try?{
rs.close();
rs?=?null;
}?catch?(SQLException?e)?{
e.printStackTrace();
}
}
if?(pstmt?!=?null){
try?{
pstmt.close();
pstmt?=?null;
}?catch?(SQLException?e)?{
e.printStackTrace();
}
}
if?(conn?!=?null){
try?{
conn.close();
conn?=?null;
}?catch?(SQLException?e)?{
e.printStackTrace();
}
}
}
}

//?public?Connection?getCon()?{
//?try?{
//?Class.forName(“com.mysql.jdbc.Driver“);
//?String?url?=
//?“jdbc:mysql://localhost/jkxystudent?useUnicode=true&characterEncoding=utf-8“;
//?String?user?=?“root“;
//?String?password?=?“root“;
//?Connection?conn?=?DriverManager.getConnection(url?user?password);
//?System.out.println(conn.getmetaData().getURL());
//
//?return?conn;
//?}?catch?(Exception?e)?{
//?e.printStackTrace();
//?return?null;
//?}
//
//?}



?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----
?????目錄???????????0??2018-07-19?13:48??學生信息管理jsp+servlet\
?????文件??????555008??2018-07-18?22:42??學生信息管理jsp+servlet\MySQL配置.doc
?????目錄???????????0??2018-07-18?22:44??學生信息管理jsp+servlet\jkxystudent2\
?????文件????????1458??2018-07-18?23:26??學生信息管理jsp+servlet\jkxystudent2\.classpath
?????文件????????1337??2016-04-14?20:12??學生信息管理jsp+servlet\jkxystudent2\.project
?????目錄???????????0??2018-06-29?10:28??學生信息管理jsp+servlet\jkxystudent2\.settings\
?????文件?????????522??2016-04-14?20:12??學生信息管理jsp+servlet\jkxystudent2\.settings\.jsdtscope
?????文件?????????238??2018-07-18?23:18??學生信息管理jsp+servlet\jkxystudent2\.settings\org.eclipse.core.resources.prefs
?????文件?????????364??2016-04-14?20:12??學生信息管理jsp+servlet\jkxystudent2\.settings\org.eclipse.jdt.core.prefs
?????文件?????????495??2016-04-14?20:12??學生信息管理jsp+servlet\jkxystudent2\.settings\org.eclipse.wst.common.component
?????文件?????????414??2016-04-14?20:12??學生信息管理jsp+servlet\jkxystudent2\.settings\org.eclipse.wst.common.project.facet.core.xml
?????文件??????????49??2016-04-14?20:12??學生信息管理jsp+servlet\jkxystudent2\.settings\org.eclipse.wst.jsdt.ui.superType.container
?????文件???????????6??2016-04-14?20:12??學生信息管理jsp+servlet\jkxystudent2\.settings\org.eclipse.wst.jsdt.ui.superType.name
?????目錄???????????0??2018-07-18?23:23??學生信息管理jsp+servlet\jkxystudent2\WebRoot\
?????目錄???????????0??2018-06-29?09:51??學生信息管理jsp+servlet\jkxystudent2\WebRoot\meta-INF\
?????文件??????????39??2016-04-14?20:12??學生信息管理jsp+servlet\jkxystudent2\WebRoot\meta-INF\MANIFEST.MF
?????目錄???????????0??2018-06-29?09:51??學生信息管理jsp+servlet\jkxystudent2\WebRoot\WEB-INF\
?????目錄???????????0??2018-07-18?23:26??學生信息管理jsp+servlet\jkxystudent2\WebRoot\WEB-INF\classes\
?????目錄???????????0??2018-07-18?23:26??學生信息管理jsp+servlet\jkxystudent2\WebRoot\WEB-INF\classes\com\
?????目錄???????????0??2018-07-18?23:26??學生信息管理jsp+servlet\jkxystudent2\WebRoot\WEB-INF\classes\com\jkxy\
?????目錄???????????0??2018-07-18?23:26??學生信息管理jsp+servlet\jkxystudent2\WebRoot\WEB-INF\classes\com\jkxy\conn\
?????文件????????1974??2018-07-18?23:26??學生信息管理jsp+servlet\jkxystudent2\WebRoot\WEB-INF\classes\com\jkxy\conn\DBConn.class
?????目錄???????????0??2018-07-18?23:26??學生信息管理jsp+servlet\jkxystudent2\WebRoot\WEB-INF\classes\com\jkxy\model\
?????文件????????1512??2018-07-18?23:26??學生信息管理jsp+servlet\jkxystudent2\WebRoot\WEB-INF\classes\com\jkxy\model\PageBean.class
?????文件????????3071??2018-07-18?23:26??學生信息管理jsp+servlet\jkxystudent2\WebRoot\WEB-INF\classes\com\jkxy\model\StuInfo.class
?????文件?????????842??2018-07-18?23:26??學生信息管理jsp+servlet\jkxystudent2\WebRoot\WEB-INF\classes\com\jkxy\model\UserTable.class
?????目錄???????????0??2018-07-18?23:26??學生信息管理jsp+servlet\jkxystudent2\WebRoot\WEB-INF\classes\com\jkxy\service\
?????文件????????3033??2018-07-18?23:26??學生信息管理jsp+servlet\jkxystudent2\WebRoot\WEB-INF\classes\com\jkxy\service\PageService.class
?????文件????????4975??2018-07-18?23:26??學生信息管理jsp+servlet\jkxystudent2\WebRoot\WEB-INF\classes\com\jkxy\service\StuInfoService.class
?????文件????????1682??2018-07-18?23:26??學生信息管理jsp+servlet\jkxystudent2\WebRoot\WEB-INF\classes\com\jkxy\service\UserService.class
?????目錄???????????0??2018-07-18?23:26??學生信息管理jsp+servlet\jkxystudent2\WebRoot\WEB-INF\classes\com\jkxy\servlet\
............此處省略68個文件信息

評論

共有 條評論