10分题-----老规矩24小时后结束关闭此贴

陆强强 · 陆强强

gbfhguyiouop9

王飞 · 王飞

我来了
注册登录退出，退出成功，退出失败
我花了N久才做出来的啊个么{:soso_e154:}

这可是三百多行代码啊我一上午就写这个了

没有用到数据库，用的是info.ini 配置文件存储的信息，读取也是从这里面读取的数据

import java.awt.Button;
import java.awt.FlowLayout;
import java.awt.Frame;
import java.awt.Label;

import java.awt.TextField;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.util.Properties;

import javax.swing.JPanel;
class  MyIEByGUI
{

File fi  ;

private Frame f,f2,f3,f4;  //注册，登录，登录成功和登录失败

private TextField tf1,tf2,tf3,tf4;  //用到的一些文本框

private Button but0,but,but2,but3; //用到的一些按钮
private Label lab1,lab2,lab3,lab4;  //标签
private JPanel mb; //面板

MyIEByGUI()
{
init();
}
public void init()//-----------------程序开始运行，创建注册对话框
{
//设置标题和登录框尺寸
f = new Frame("my window");
f.setBounds(300,100,250,500);

//创建和设置面板
mb = new JPanel();
mb.setLayout(new FlowLayout());

//下面这些就是将组建添加到Frame框架中
lab1 = new Label("用户名:");
tf1 = new TextField(20);
mb.add(lab1);
mb.add(tf1);

lab2= new Label("密码：");
tf2 = new TextField(20);
mb.add(lab2);
mb.add(tf2);

lab3 = new Label("邮箱：");
tf3 = new TextField(20);
mb.add(lab3);
mb.add(tf3);

lab4= new Label("电话：");
tf4 = new TextField(20);
mb.add(lab4);
mb.add(tf4);

but = new Button("注册");
mb.add(but);

f.add(mb);

myEvent();  //定义监听器函数
f.setVisible(true); //Frame框架设置为可见

}

private void  myEvent()//注册框架监听
{
f.addWindowListener(new WindowAdapter()
{
public void windowClosing(WindowEvent e)
{
f.setVisible(false);//点击x的时候把Frame隐藏起来
}
});


but.addActionListener(new ActionListener()//执行提交动作
{
public void actionPerformed(ActionEvent e)
{
try
{

zhuce();//注册

denglu();//登录

}
catch (Exception ex)
{
}

}
});
}

private void  myEvent2()//登录框架监听
{

f2.addWindowListener(new WindowAdapter()
{
public void windowClosing(WindowEvent e)
{
f2.setVisible(false);
}
});


but2.addActionListener(new ActionListener()//执行提交动作
{
public void actionPerformed(ActionEvent e)
{
try
{

method(); //登录方法
}
catch (Exception ex)
{
}

}
});
}

private void  myEvent3()//登陆成功框架监听
{

f3.addWindowListener(new WindowAdapter()
{
public void windowClosing(WindowEvent e)
{
f3.setVisible(false);
}
});


}
private void  myEvent4()//登陆失败框架监听
{
f4.addWindowListener(new WindowAdapter()
{
public void windowClosing(WindowEvent e)
{
f4.setVisible(false);
}
});


but3.addActionListener(new ActionListener()//执行提交动作
{
public void actionPerformed(ActionEvent e)
{
try
{
f4.setVisible(false);
}
catch (Exception ex)
{
}

}
});
}

private void zhuce()throws Exception  //注册执行
{
String name = tf1.getText();//获取用户名
String mima = tf2.getText();//获取密码
String imail = tf3.getText();//获取邮箱
String tel = tf4.getText();//获取电话

Properties  prop = new Properties();//用这个集合来存储键值对；即：账号和密码
fi = new File("info.ini");  //用于存储注册信息的文件

if(!fi.exists())//如果文件不存在则创建一个
{
fi.createNewFile(); //创建文件
prop.setProperty("name", name) ;
prop.setProperty("mima", mima) ;
prop.setProperty("imail", imail) ;
prop.setProperty("tel", tel) ;
         FileOutputStream fos = new FileOutputStream(fi,true);
prop.store(fos, "haha");
}
else
{
                 //保存注册信息
                 FileOutputStream fos = new FileOutputStream(fi,true);
                 prop.setProperty("name", name) ;
prop.setProperty("mima", mima) ;
prop.setProperty("imail", imail) ;
prop.setProperty("tel", tel) ;

                 prop.store(fos, "hahah");//haha是注释

}

}
private void denglu()throws Exception
{

   denglufu(); //执行登录操作

}

public void denglufu()throws Exception
{

Label lab1,lab2;
JPanel mb;

f2 = new Frame("my window");
f2.setBounds(300,100,250,500);

mb = new JPanel();
mb.setLayout(new FlowLayout());

lab1 = new Label("用户名:");
tf3 = new TextField(20);
mb.add(lab1);
mb.add(tf3);

lab2= new Label("密码：");
tf4 = new TextField(20);
mb.add(lab2);
mb.add(tf4);

but2 = new Button("登录");
mb.add(but2);

f2.add(mb);

f2.setVisible(true);

myEvent2();

}
public void method()throws Exception //此方法用来测试是否登录成功
{
FileInputStream fis = new FileInputStream(fi);//读取存储的信息，帐号和密码

Properties  prop = new Properties();
prop.load(fis);  //创建流对象，把流中的数据加载到prop中

//获取登录时输入的帐号和密码
String yonghm = tf3.getText();//获取用户名
String mima = tf4.getText();//获取密码

//获取加载来的帐号和密码，即注册的帐号和密码
String name =prop.getProperty("name");
String mim =prop.getProperty("mima");

//如果注册的帐号和登录的帐号一致，那么登录成功，否则失败
if(yonghm.equals(name)&&mima.equals(mim))
{
   //成功时的界面
f3 = new Frame("my window");
f3.setBounds(300,100,200,200);

mb = new JPanel();
mb.setLayout(new FlowLayout());

lab1 = new Label("登录成功！欢迎到此一游。。。");
mb.add(lab1);

f3.add(mb);
myEvent3();
f3.setVisible(true);
}
else  //失败时的界面
{
f4 = new Frame("my window");
f4.setBounds(300,100,200,200);

mb = new JPanel();
mb.setLayout(new FlowLayout());

lab1 = new Label("登录失败，请从新输入。。。");
mb.add(lab1);
but3 = new Button("返回");
mb.add(but3);

f4.add(mb);

f4.setVisible(true);
myEvent4();
}
}

public static void main(String[] args)
{
new MyIEByGUI();
}
}

王璐 · 王璐

import java.util.*;
import java.io.*;
public class Sys {
public static int NUM = 1, RU_NUM; // 接收人物序号，删除、修改人物序号
public static int optionsNum; // 操作序号
public static String readInfo; // 接收读取进来的信息
public static class Person {
public int personNum;
public String name;
public int age;
public String phoneNum;
public String toString() {
return new String("序号:" + personNum + " 姓名：" + name + " 年龄:" + age
+ " 电话:" + phoneNum);
}
};
public static TreeMap<Integer, Person> per = new TreeMap<Integer, Person>();
public static void main(String args[]) {
System.out.print("欢迎使用信息管理系统\n");
showHelp(); // 提示操作
options(); // 操作选项
}
// 操作选项
public static void options() {
while (true) {
System.out.print("请输入：");
try {
BufferedReader Console = new BufferedReader(
new InputStreamReader(System.in));
readInfo = Console.readLine();
optionsNum = Integer.parseInt(readInfo);
break;
} catch (Exception e) {
System.out.print("输入有误，请输入（1，2，3，4，5，0）其中一个\n");
}
}
switch (optionsNum) {
case 0:
break;
case 1:
add();
showHelp();
options();
break;
case 2:
del();
showHelp();
options();
break;
case 3:
mod();
showHelp();
options();
break;
case 4:
find();
showHelp();
options();
break;
case 5:
showall();
showHelp();
options();
break;
}
}
public static void showHelp() {
System.out.print("1---添加\n");
System.out.print("2---删除\n");
System.out.print("3---修改\n");
System.out.print("4---查询\n");
System.out.print("5---显示\n");
System.out.print("0---退出\n");
}
public static void add()
{
while (true)
{
try {
Person person = new Person();
BufferedReader Console = new BufferedReader(
new InputStreamReader(System.in));
System.out.println("请输入序号(整数)：" + (int) (NUM));
person.personNum = (int) (NUM);
System.out.print("请输入姓名：");
readInfo = Console.readLine();
person.name = readInfo;
System.out.print("请输入年龄：");
person.age = Integer.parseInt(Console.readLine());
System.out.print("请输入电话号：");
readInfo = Console.readLine();
person.phoneNum = readInfo;
per.put(NUM, person);
NUM++;
System.out.print("是否继续输入？（y/n）");
while (true) {
readInfo = Console.readLine();
if (!readInfo.equals("y") && !readInfo.equals("n")) {
System.out.print("有错，请重新输入");
} else {
break;
}
}
if (readInfo.equals("n")) {
break;
}
} catch (Exception e) {
System.out.print("错误\n");
}
}
}
public static void del() {
try {
BufferedReader Console = new BufferedReader(new InputStreamReader(
System.in));
System.out.print("请输入人物编号");
while (true) {
RU_NUM = Integer.parseInt(Console.readLine());
if (show(RU_NUM)) {
System.out.print("确认删除？（y/n）");
while (true) {
readInfo = Console.readLine();
if (!readInfo.equals("y") && !readInfo.equals("n")) {
System.out.print("有错，请重新输入");
} else {
break;
}
}
if (readInfo.equals("n")) {
break;
} else if (readInfo.equals("y")) {
per.remove(RU_NUM);
System.out.print("删除成功");
break;
}
} else
{
break;
}
}
} catch (Exception e) {
System.out.print("错误\n");
}
}
public static void mod() {
try {
System.out.print("请输入人物编号");
while (true) {
BufferedReader Console = new BufferedReader(
new InputStreamReader(System.in));
RU_NUM = Integer.parseInt(Console.readLine());
if (show(RU_NUM)) {
System.out.print("确认修改？（y/n）");
while (true) {
readInfo = Console.readLine();
if (!readInfo.equals("y") && !readInfo.equals("n")) {
System.out.print("有错，请重新输入");
}
if (readInfo.equals("n")) {
break;
} else if (readInfo.equals("y")) {
System.out.println("当前信息(ESC放弃修改)：" + per.get(RU_NUM));
System.out.println("当前姓名改为");
Person persongai = new Person();
readInfo = Console.readLine();
if (!readInfo.equals("\27"))
persongai.name = readInfo;
System.out.println("当前年龄改为");
readInfo = Console.readLine();
if (!readInfo.equals("\27"))
persongai.age = Integer.parseInt(readInfo);
System.out.println("当前电话号改为");
readInfo = Console.readLine();
if (!readInfo.equals("\27"))
persongai.phoneNum = readInfo;
per.put(RU_NUM, persongai);
System.out.print("修改成功\n");
break;
}
}
}
break;
}
} catch (Exception e) {
System.out.print("错误");
}
}
public static void find()
{
try {
System.out.print("请输入人物编号");
while (true) {
BufferedReader Console = new BufferedReader(
new InputStreamReader(System.in));
RU_NUM = Integer.parseInt(Console.readLine());
if (per.containsKey(RU_NUM)) {
System.out.println(per.get(RU_NUM));
break;
}
}
} catch (Exception e) {
System.out.print("错误");
}
}
public static void showall() {
System.out.println("显示所有信息:\n");
System.out.println(per+"\n");
}
public static boolean show(int a) {
if (per.containsKey(a)) {
System.out.println(per + "\n");
return true;
} else {
System.out.print("无此记录或已被删除\n");
return false;
}
}
}

复制代码

冯心程 · 冯心程

啊啊啊啊

张_涛 · 张_涛

本帖最后由张_涛于 2012-7-22 15:11 编辑

public class Operation {
private Connection conn = null;
String sql = null;
private PreparedStatement pstmt = null;
public Operation(Connection conn) {
this.conn = conn;
}
public boolean doLogin() throws Exception{
System.err.println("请输入：姓名，联系电话，并以','分开");
Scanner scan = new Scanner(System.in);
String infos = scan.next();
String[] info = infos.split(",");
String name = info[0];
int tel = Integer.parseInt(info[1]);
sql = "select name,tel,state from stu";
//实例化数据库操作对象
pstmt = this.conn.prepareStatement(sql);
ResultSet rs = pstmt.executeQuery();
while(rs.next()) {
//跟数据库中记录进行比较，判断姓名，联系电话是否匹配存在。
if(name.equals(rs.getString(1)) && tel == rs.getInt(2)) {
System.out.println("登录成功");
if(rs.getString(3).equals("yes")) {
System.out.println("你已经通过所有考试，请按时到黑马训练营报道");
}
else {
System.out.println("你还没有通过所有考试，请继续努力，争取早日加入黑马训练营！");
}
return true;
}
}
System.out.println("登录失败，请检查输入是否正确！");
return false;
}
public void doCreate() throws Exception{
Stu stu = new Stu();
System.out.println("请输入：姓名，联系电话，入学状态，并以英文逗号','分开");
Scanner scan = new Scanner(System.in);
String infos = scan.next();
String[] info = infos.split(",");
stu.setName(info[0]);
stu.setTel(Integer.parseInt(info[1]));
stu.setState(info[2]);
sql = "insert into stu(name,tel,state) values(?,?,?)";
this.pstmt = this.conn.prepareStatement(sql);
//设置查询所需要的内容
this.pstmt.setString(1, stu.getName());
this.pstmt.setInt(2, stu.getTel());
this.pstmt.setString(3, stu.getState());
if(this.pstmt.executeUpdate() > 0) {
System.out.println("注册成功！");
}
else {
System.out.println("注册失败！");
}
this.pstmt.close();
}
public void doUpdate() throws Exception {
Stu stu = new Stu();
System.out.println("请输入：更新的UID号，更新后的姓名，更新后的电话，更新后的状态，并以英文逗号','分开");
Scanner scan = new Scanner(System.in);
String infos = scan.next();
String[] info = infos.split(",");
stu.setUid(Integer.parseInt(info[0]));
stu.setName(info[1]);
stu.setTel(Integer.parseInt(info[2]));
stu.setState(info[3]);
sql = "update stu set name=?, tel=?, state=? where uid = ?";
this.pstmt = this.conn.prepareStatement(sql);
this.pstmt.setString(1, stu.getName());
this.pstmt.setInt(2, stu.getTel());
this.pstmt.setString(3, stu.getState());
this.pstmt.setInt(4, stu.getUid());
if(this.pstmt.executeUpdate() > 0) {
System.out.println("更新成功！");
}
else {
System.out.println("更新失败！");
}
this.pstmt.close();
}
public void doDelete() throws Exception {
System.out.println("请输入需要删除的学生的UID：");
Scanner scan = new Scanner(System.in);
int uid = scan.nextInt();
sql = "delete from stu where uid = ?";
this.pstmt = this.conn.prepareStatement(sql);
this.pstmt.setInt(1, uid);
if(this.pstmt.executeUpdate() > 0) {
System.out.println("删除陈功！");
}
else {
System.out.println("删除失败！");
}
this.pstmt.close();
}
public void doBackup() throws Exception {
System.out.println("------正在进行备份------");
//创建一个XML文件，将数据备份到其中。
File file = new File("data//stuback.xml");
sql = "select uid,name,tel,state from stu";
pstmt = this.conn.prepareStatement(sql);
//声明一个Document对象
Document doc = new Document();
Element root = new Element("stus");
ResultSet rs = pstmt.executeQuery();
while(rs.next()) {
//定义各个节点
Element stu = new Element("stu");
Element uid = new Element("uid");
Element name = new Element("name");
Element tel = new Element("tel");
Element state = new Element("state");
uid.setText(rs.getInt(1) + "");
name.setText(rs.getString(2));
tel.setText(rs.getInt(3) + "");
state.setText(rs.getString(4));
//设置节点之间的关系
stu.addContent(uid);
stu.addContent(name);
stu.addContent(tel);
stu.addContent(state);
root.addContent(stu);
}
//关闭查询对象
rs.close();
//关闭操作对象
pstmt.close();
doc.addContent(root);
//用来输出XML文件
XMLOutputter out = new XMLOutputter();
out.output(doc, new FileOutputStream(file));
System.out.println("------备份成功------");
}
public void doReduction() throws Exception{
System.out.println("------正在进行还原------");
File file = new File("data//stuback.xml");
//建立SAX解析
SAXBuilder builder = new SAXBuilder();
Document doc = builder.build(file);
//读到根元素
Element root = doc.getRootElement();
//读取全部stu子元素
List allStu = root.getChildren("stu");
Iterator iter = allStu.iterator();
Stu s = new Stu();
sql = "delete from stu";
pstmt = this.conn.prepareStatement(sql);
pstmt.execute();
sql = "insert into stu(uid,name,tel,state) values(?,?,?,?)";
pstmt = this.conn.prepareStatement(sql);
while(iter.hasNext()) {
Element stu = (Element)iter.next();
s.setUid(Integer.parseInt(stu.getChildText("uid")));
s.setName(stu.getChildText("name"));
s.setTel(Integer.parseInt(stu.getChildText("tel")));
s.setState(stu.getChildText("state"));
pstmt.setInt(1, s.getUid());
pstmt.setString(2, s.getName());
pstmt.setInt(3, s.getTel());
pstmt.setString(4, s.getState());
pstmt.addBatch();
}
pstmt.executeBatch();
System.out.println("------还原成功------");
}
}

复制代码

主要方法代码，其他的参见附件。

周恺 · 周恺

哎,不会数据库的伤不起啊.你们都好强..

孙浩迪 · 孙浩迪

哇，这个真的有

宁方柳 · 宁方柳

看题了

张世威 · 张世威

什么题目。。

柳雷 · 柳雷

这个是用jsp做的，数据库用的是mysql,基本功能是实现了，并且特别注意了异常，有很多地方用到了处理异常的手段。

黄一 · 黄一

看看题先。

纪艺松 · 纪艺松

看下题目

右眼会动的人 · 右眼会动的人

哇塞，看看是什么高科技

韩伟 · 韩伟

神秘大礼包？

彭盼 · 彭盼

让我看看

黑马-李勇 · 黑马-李勇

滔哥真坏，还要回复

黑马罗坚 · 黑马罗坚

看看是什么

刘海源 · 刘海源

没有权限，就放这吧

/*
*
本帖隐藏的内容
题目：写一个简单信息管理系统

功能：注册登陆信息添加（姓名，联系方式，事物，其他事项自己可以定义）
修改删除覆盖选项数据还原数据备份
其他：异常处理必须到位

* */
package cn.com.thread;
import java.util.*;
class Student//定义一个学生类
{
private String name;
private int age;
private String email;
public Student(){}
public Student(String name,int age,String email)
{
this.name=name;
this.age=age;
this.email=email;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public int getAge() {
return age;
}
public void setAge(int age) {
this.age = age;
}
public String getEmail() {
return email;
}
public void setEmail(String email) {
this.email = email;
}
}
public class ThreadDemo2 {
public static void main(String[] args) {
   getAdd();
}
public static void getSelect(List<Student> list)
{
   System.out.println("以下是学生管理系统：");
   System.out.println("姓名\t\t\t邮箱\t\t\t年龄");
   Student sss=null;
   Iterator<Student> it=list.iterator();
   while(it.hasNext())
   {
      sss=it.next();
   }
   System.out.println(sss.getName()+"\t\t\t"+sss.getEmail()+"\t\t\t"+sss.getAge());
   System.out.println("您是否要进行更新数据：1>修改\t\t2>删除\t\t3>数据还原");
   System.out.println("请选择：");
   Scanner sc=new Scanner(System.in);
   int num=sc.nextInt();
   if(num==1){
   getGai(list);
   }if(num==2){
      getDelete(list);
   }if(num==3){
   getYuan(list);}

}
public static void getGai(List<Student> list)
{
   Iterator<Student> it =list.iterator();
   Student t=null;
   while(it.hasNext())
   {
   t=it.next();
   }
   Scanner sc=new Scanner(System.in);
   System.out.println("请您先注册");
   System.out.println("姓名：");
   String Name=sc.nextLine();
   System.out.println("邮箱：");
   String Email=sc.nextLine();
   System.out.println("年龄：");
   int Age=sc.nextInt();
   Student s=new Student(Name,Age,Email);
   list.add(s);
   System.out.println("修改成功！");
}
public static void getDelete(List<Student> list)
{

            list.remove(0);
            System.out.println("删除成功！");
            Scanner sc=new Scanner(System.in);
            System.out.println("是否要进行数据还原？(Y/N)：");
            String c=sc.nextLine();
            if(c.equals("Y"))
               getYuan(list);
            else
               return;
}
public static void getYuan(List<Student> list)
{
   Iterator<Student> it =list.iterator();
   Student t=null;
   while(it.hasNext())
   {
   t=it.next();
   }
   list.add(t);
   System.out.println("还原成功！");
}
public static List<Student> getAdds()
{
   List<Student> list=new ArrayList<Student>();
   Scanner sc=new Scanner(System.in);
   System.out.println("请您先注册");
   System.out.println("姓名：");
   String Name=sc.nextLine();
   System.out.println("邮箱：");
   String Email=sc.nextLine();
   System.out.println("年龄：");
   int Age=sc.nextInt();
   Student s=new Student(Name,Age,Email);
   list.add(s);
   return list;
}
public static void getAdd()
{
      List<Student>  list=getAdds();
      Student ss = null;
      System.out.println("注册成功，请重新登录.");
   Scanner sc=new Scanner(System.in);
   System.out.println("欢迎来到信息登录系统");
   System.out.println("姓名：");
   String Name=sc.nextLine();
   System.out.println("邮箱：");
   String Email=sc.nextLine();
   System.out.println("年龄：");
   int Age=sc.nextInt();
   Iterator<Student> it= list.iterator();
   while(it.hasNext())
   {
      ss=it.next();
   }
   if(ss.getName().equals(Name)&&ss.getAge()==Age&&ss.getEmail().equals(Email))
   {
   System.out.println("登陆成功！");
   getSelect(list);
   }else
   {
   getAdds();
   }


}

}

王璐 · 王璐

王璐发表于 2012-7-22 14:57

怎么传附件啊？

朱东方 · 朱东方

10分题-----老规矩24小时后结束关闭此贴

浏览过的版块

黑马骑士勋章

帐号		自动登录	找回密码
密码			加入黑马