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银行取款转账系统（Java编写）

上传者： dalongwangchao | 上传时间：2020/11/9 14:44:46 | 文件大小：132KB | 文件类型：rar
银行取款转账系统（Java编写）
这是用Java编写的一个简单的银行转账系统，包括取款，存款，转账等功能，其中用到了数据库的连接，采用Eclipse编写，包含数据库的设计文件。
非常适合有一定基础的Java初学者使用。
packagecom.gujunjia.bank;/**Tochangethistemplate,chooseTools|Templates*andopenthetemplateintheeditor.*/importjava.sql.*;/****@authorgujunjia*/publicclassDataBase{ staticConnectionconn; staticPreparedStatementst; staticResultSetrs; /** *加载驱动 */ publicstaticvoidloadDriver() { try { Class.forName("com.mysql.jdbc.Driver"); } catch(ClassNotFoundExceptione) { System.out.println("加载驱动失败"); } } /** *创建数据库的连接 * *@paramdatabase *需要访问的数据库的名字 */ publicstaticvoidconnectionDatabase(Stringdatabase) { try { Stringurl="jdbc:mysql://localhost:3306/"+database; Stringusername="root"; Stringpassword="gujunjia"; conn=DriverManager.getConnection(url,username,password); } catch(SQLExceptione) { System.out.println(e.getMessage()); } } /** *关闭数据库连接 */ publicstaticvoidcloseConnection() { if(rs!=null) {//关闭记录集 try { rs.close(); } catch(SQLExceptione) { e.printStackTrace(); } } if(st!=null) {//关闭声明 try { st.close(); } catch(SQLExceptione) { e.printStackTrace(); } } if(conn!=null) {//关闭连接对象 try { conn.close(); } catch(SQLExceptione) { e.printStackTrace(); } } }}packagecom.gujunjia.bank;/**Tochangethistemplate,chooseTools|Templates*andopenthetemplateintheeditor.*/importjava.awt.*;importjava.awt.event.*;importjavax.swing.*;/***本类次要实现整个系统的界面**@authorgujunjia*/publicclassMainFrameextendsJFrameimplementsActionListener,FocusListener{ /** * */ privatestaticfinallongserialVersionUID=1L; publicstaticStringuserId; JTextFielduserIdText; JPasswordFieldpasswordText; JButtonregisterButton; JButtonlogInButton; publicMainFrame() { super("个人银行系统

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评论信息

  • xiexieni316:
    谢谢分享，学习了2016-05-17
  • kederukawa:
    不错，对java项目学习有用处2013-09-03
  • yueqingabc123:
    比较简单，但是看了后有所帮助2013-07-04
  • 压心底:
    怎么运行报很多错误啊2013-07-03
  • hxd1124:
    虽然不是特别详细但是一些东西还是帮助了我在做的过程中(・∀・)2012-12-26

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