小型银行管理系统的功能代码

1、小型银行管理系统的部分代码登陆package dao;import java.sql.Connection;import java.sql.DriverManager;import java.sql.ResultSet;import java.sql.SQLException;import java.util.ArrayList;import java.util.List;import java.sql.*;public class loginprivate String sName;private String sPass;private String sState;/数据库连接设置prot

2、ected static String dbClassName = "com.mysql.jdbc.Driver"protected static String dbUrl = "jdbc:mysql:/localhost:3306/bank"protected static String dbUser = "root" protected static String dbPwd = "root" private static Connection conn = null; public String getsNa

3、me() return sName;public void setsName(String sName) this.sName = sName;public String getsPass() return sPass;public void setsSPass(String sPass) this.sPass = sPass;public String getsState() return sState;public void setsState(String sState) this.sState = sState;/* * 创建数据库连接 * */private void NewConn

4、ect()try if (conn = null) Class.forName(dbClassName).newInstance();conn = DriverManager.getConnection(dbUrl, dbUser, dbPwd);elsereturn; catch (Exception ee) ee.printStackTrace();public List stuSearch()String sql="select * from person where name='"+sName+"' and pass='"

5、+sPass+"' and state='"+sState+"'"/System.out.println(sql);List list=new ArrayList();ResultSet rs = null;try if(conn=null)NewConnect();/如果数据库连接为空，则创建rs = conn.createStatement().executeQuery(sql); catch (SQLException e) e.printStackTrace(); try /通过循环，将数据结果集中的内容取出while(r

6、s.next() login ep = new login();ep.setsName(ep.getsName();ep.setsSPass(ep.getsPass();ep.setsState(ep.getsState();/System.out.println(ep.getsName()+ep.getsPass()+ep.getsState();list.add(ep); catch (SQLException e) / TODO 自动生成 catch 块e.printStackTrace();return list;/查询结果，数组返回数据库package dao;import java

7、.sql.Connection;import java.sql.DriverManager;import java.sql.ResultSet;import java.sql.Statement;public class shujuku public shujuku(String sql)/接受一个SQL语句并执行 try Class.forName("com.mysql.jdbc.Driver"); String url="jdbc:mysql:/localhost/Bank?useUnicode=true&characterEncoding=GBK&q

8、uot; Connection con=DriverManager.getConnection(url,"root","root"); Statement stmt=con.createStatement(); stmt.executeUpdate(sql); stmt.close(); catch(Exception e) e.printStackTrace(); 数据package dao;import java.sql.Connection;import java.sql.DriverManager;import java.sql.ResultSe

9、t;import java.sql.Statement;public class shuju public static String shuj()/查询出账户的最大值并返回这个最大值供其他方法调用 String s=null; try Class.forName("com.mysql.jdbc.Driver"); String url="jdbc:mysql:/localhost/Bank?useUnicode=true&characterEncoding=GBK" Connection con=DriverManager.getConnect

10、ion(url,"root","root"); Statement stmt=con.createStatement(); ResultSet rs=stmt.executeQuery("select max(cid) as cid from Bank.yonghuxinxi "); while(rs.next() s=rs.getString("cid"); stmt.close(); rs.close(); catch(Exception e) e.printStackTrace(); return s; 数据

11、库连接package dao;import java.sql.Connection;import java.sql.DriverManager;import java.sql.ResultSet;import java.sql.SQLException;import java.util.ArrayList;import java.util.List;import java.util.Vector;import java.sql.*;public class Employee private String ename;private String eid;private String eaddr

12、;private String esalary;private String epassward;private String esex;private String etel;/数据库连接设置protected static String dbClassName = "com.mysql.jdbc.Driver"protected static String dbUrl = "jdbc:mysql:/localhost:3306/bank"protected static String dbUser = "root" protect

13、ed static String dbPwd = "root" private static Connection conn = null; public String getename() return ename;public void setename(String ename) this.ename = ename;public String geteid() return eid;public void seteid(String eid) this.eid = eid;public String geteaddr() return eaddr;public vo

14、id seteaddr(String eaddr) this.eaddr = eaddr;public String getesalary() return esalary;public void setesalary(String esalary) this.esalary = esalary;public String getepassward() return epassward;public void setepassward(String epassward) this.epassward = epassward;public String getesex() return esex

15、;public void setesex(String esex) this.esex = esex;public String getetel() return etel;public void setetel(String etel) this.etel = etel;/* * 创建数据库连接 * */private void NewConnect()try if (conn = null) Class.forName(dbClassName).newInstance();conn = DriverManager.getConnection(dbUrl, dbUser, dbPwd);el

16、sereturn; catch (Exception ee) ee.printStackTrace();/* * 增加员工 * param stu */public void AddEmployee()/拼装插入员工信息的SQL语句String ssql="insert into employee(name,id,addr,salary,passward,sex,tel) values ("+ "'"+this.ename+"',"+ "'"+this.eid+"',&qu

17、ot;+ "'"+this.eaddr+"',"+ "'"+this.esalary+"',"+ "'"+this.epassward+"',"+ "'"+this.esex+"',"+ "'"+this.etel+"')"System.out.println(ssql);try if(conn=null) NewCo

18、nnect();/如果数据库连接为空，则创建/执行SQL语句，插入员工信息conn.createStatement().executeUpdate(ssql); catch (SQLException e) e.printStackTrace(); /* * 删除员工 * param stu */public void DelEmployee()/拼装删除员工的SQL语句String ssql="delete from employee where id ='"+this.eid+"'"try if(conn=null) NewConne

19、ct();/如果数据库连接为空，则创建/执行SQL语句，删除员工信息conn.createStatement().executeUpdate(ssql); catch (SQLException e) e.printStackTrace(); /* * 员工查询 * param x * return */public Vector<Vector> stuSearch()/拼装查询员工的SQL语句String sql="select name,id,addr,salary,passward,sex,tel from employee"/如果姓名非空，则将姓名作为查

20、询条件if(this.ename!=null)sql+=" where name='"+this.ename+"'"/如果性别非空，则将性别作为查询条件Vector<Vector> v =new Vector<Vector>();/List list=new ArrayList();ResultSet rs = null;try if(conn=null)NewConnect();/如果数据库连接为空，则创建/执行查询，查询结果保存在数据结果集rs中/rs = conn.createStatement(Result

21、Set.TYPE_SCROLL_SENSITIVE,ResultSet.CONCUR_UPDATABLE).executeQuery(sql);rs = conn.createStatement().executeQuery(sql); catch (SQLException e) e.printStackTrace(); try /通过循环，将数据结果集中的内容取出while(rs.next()/每一条员工记录作为一个对象，加入到数组中/*Employee stuinfo = new Employee();stuinfo.setename(rs.getString("name&qu

22、ot;);stuinfo.seteid(rs.getString("id");stuinfo.setesex(rs.getString("sex");stuinfo.setesalary(rs.getString("salary");stuinfo.setepassward(rs.getString("passward");stuinfo.seteaddr(rs.getString("addr");stuinfo.setetel(rs.getString("tel");*/V

23、ector<String> ve = new Vector<String>();for(int i = 1;i<8;i+)ve.add(rs.getString(i);v.add(ve); catch (SQLException e) / TODO 自动生成 catch 块e.printStackTrace();return v;/查询结果，员工信息数组返回开户package dao;import java.sql.Connection;import java.sql.DriverManager;import java.sql.ResultSet;import j

24、ava.sql.Statement;public class Cxshuju public static int cxshuj(String s,String ss)/判断用户输入的账户、密码是否正确，如果正确返回1,否则返回0 int a=0; try Class.forName("com.mysql.jdbc.Driver"); String url="jdbc:mysql:/localhost/Bank?useUnicode=true&characterEncoding=GBK" Connection con=DriverManager.g

25、etConnection(url,"root","root"); Statement stmt=con.createStatement(); ResultSet rs=stmt.executeQuery("select * from bank.yonghuxinxi"); while(rs.next() if (rs.getString("cid").equals(s) && rs.getString("mm").equals(ss) a=1; break; stmt.close

26、(); rs.close(); catch(Exception e) e.printStackTrace(); return a; public static int cxshuj(String s)/判断数据库中是否存在账户名s,若存在返回1,否则返回0 int a=0; try Class.forName("com.mysql.jdbc.Driver"); String url="jdbc:mysql:/localhost/Bank?useUnicode=true&characterEncoding=GBK" Connection con=D

27、riverManager.getConnection(url,"root","root"); Statement stmt=con.createStatement(); ResultSet rs=stmt.executeQuery("select * from bank.yonghuxinxi"); while(rs.next() if (rs.getString("cid").equals(s) a=1; break; stmt.close(); rs.close(); catch(Exception e) e.

28、printStackTrace(); return a; public static String cxsj(String s)/查询余额 String a=null; try Class.forName("com.mysql.jdbc.Driver"); String url="jdbc:mysql:/localhost/Bank?useUnicode=true&characterEncoding=GBK" Connection con=DriverManager.getConnection(url,"root","

29、;root"); Statement stmt=con.createStatement(); ResultSet rs=stmt.executeQuery(s); while(rs.next() a=rs.getString("je"); rs.close(); stmt.close(); catch(Exception e) e.printStackTrace(); return a; public static String cxsju(String s)/查询身份证号 String a=null; try Class.forName("com.mysql.jdbc.Driver"); String url="jdbc:mysql:/localhost/Bank?useUnicode=true&characterEncoding=GBK" Connection con=DriverManager.getConnection(url,"root","root"); Statement stmt=con.createStatement(); ResultSet rs=stmt.executeQuery(s); while(rs