java 文件搜索程序

import java.io.File

import java.io.FileFilter

public class SearchFile {

private static final class OnlyFile implements FileFilter {

public boolean accept(File pathname) {

if (pathname.isFile()) {

return true

} else {

return false

}

}

}

public static void main(String[] args) {

if (args.length != 2) {

System.out.println("使用说明：请输入java SearchFile 目录 文件名")

} else {

File file = new File(args[0])

File[] files = file.listFiles(new OnlyFile())

for (File f : files) {

if (f.getName().contains(args[1])) {

System.out.println(f.getPath())

}

}

}

}

}

//注意路径名不能有空格

package test

import java.sql.*

import java.awt.*

import javax.swing.*

import java.awt.event.*

import javax.swing.border.*

import javax.swing.JOptionPane

class Add extends Panel implements ActionListener{

Connection con

Statement sql

Button b1,b2

TextField tf1,tf2,tf3,tf4,tf5,tf6

Box baseBox,bv1,bv2

Add(){

try{

Class.forName("sun.jdbc.odbc.JdbcOdbcDriver")

}

catch(ClassNotFoundException e){}

try{

con=DriverManager.getConnection("jdbc:odbc:data","","")

sql=con.createStatement()

}

catch(SQLException ee){}

setLayout(new BorderLayout())

Panel p1=new Panel()

Panel p2=new Panel()

tf1=new TextField(16)

tf2=new TextField(16)

tf3=new TextField(16)

tf4=new TextField(16)

tf5=new TextField(16)

tf6=new TextField(16)

b1=new Button("录入")

b1.setBackground(Color.green)

b2=new Button("重置")

b2.setBackground(Color.green)

b1.addActionListener(this)

b2.addActionListener(this)

p1.add(b1)

p1.add(b2)

bv1=Box.createVerticalBox()

bv1.add(new Label("学号"))

bv1.add(Box.createVerticalStrut(8))

bv1.add(new Label("姓名"))

bv1.add(Box.createVerticalStrut(8))

bv1.add(new Label("性别"))

bv1.add(Box.createVerticalStrut(8))

bv1.add(new Label("专业"))

bv1.add(Box.createVerticalStrut(8))

bv1.add(new Label("年级"))

bv1.add(Box.createVerticalStrut(8))

bv1.add(new Label("出生"))

bv1.add(Box.createVerticalStrut(8))

bv2=Box.createVerticalBox()

bv2.add(tf1)

bv2.add(Box.createVerticalStrut(8))

bv2.add(tf2)

bv2.add(Box.createVerticalStrut(8))

bv2.add(tf3)

bv2.add(Box.createVerticalStrut(8))

bv2.add(tf4)

bv2.add(Box.createVerticalStrut(8))

bv2.add(tf5)

bv2.add(Box.createVerticalStrut(8))

bv2.add(tf6)

bv2.add(Box.createVerticalStrut(8))

baseBox=Box.createHorizontalBox()

baseBox.add(bv1)

baseBox.add(Box.createHorizontalStrut(10))

baseBox.add(bv2)

p2.add(baseBox)

add(p1,"South")

add(p2,"Center")

setSize(350,300)

setBackground(Color.pink)

}

public void actionPerformed(ActionEvent e){

if(e.getSource()==b1){

try{ insert()}

catch(SQLException ee){}

JOptionPane.showMessageDialog(this,"数据已入库!","提示对话框",JOptionPane.INFORMATION_MESSAGE)

}

else if(e.getSource()==b2){

tf1.setText(" ")

tf2.setText(" ")

tf3.setText(" ")

tf4.setText(" ")

tf5.setText(" ")

tf6.setText(" ")

}

}

public void insert() throws SQLException{

String s1="'"+tf1.getText().trim()+"'"

String s2="'"+tf2.getText().trim()+"'"

String s3="'"+tf3.getText().trim()+"'"

String s4="'"+tf4.getText().trim()+"'"

String s5="'"+tf5.getText().trim()+"'"

String s6="'"+tf6.getText().trim()+"'"

String temp="INSERT INTO jesse VALUES ("+s1+","+s2+","+s3+","+s4+","+s5+","+s6+")"

con=DriverManager.getConnection("jdbc:odbc:data","","")

sql.executeQuery(temp)

con.close()

}

}

class Query extends Panel implements ActionListener{

Connection con

Statement sql

TextField t1,t2,t3,t4,t5,t6

Button b

Box baseBox,bv1,bv2

int flag=0

Query(){

try{

Class.forName("sun.jdbc.odbc.JdbcOdbcDriver")

}

catch(ClassNotFoundException e){}

try{

con=DriverManager.getConnection("jdbc:odbc:data","","")

sql=con.createStatement()

}

catch(SQLException ee){}

setLayout(new BorderLayout())

b=new Button("查询")

b.setBackground(Color.orange)

b.addActionListener(this)

t1=new TextField(8)

t2=new TextField(16)

t3=new TextField(16)

t4=new TextField(16)

t5=new TextField(16)

t6=new TextField(16)

t2.setEditable(false)

t3.setEditable(false)

t4.setEditable(false)

t5.setEditable(false)

t6.setEditable(false)

Panel p1=new Panel(),p2=new Panel()

p1.add(new Label("输入要查询的学号"))

p1.add(t1)

p1.add(b)

bv1=Box.createVerticalBox()

bv1.add(new Label("姓名"))

bv1.add(Box.createVerticalStrut(8))

bv1.add(new Label("性别"))

bv1.add(Box.createVerticalStrut(8))

bv1.add(new Label("专业"))

bv1.add(Box.createVerticalStrut(8))

bv1.add(new Label("年级"))

bv1.add(Box.createVerticalStrut(8))

bv1.add(new Label("出生"))

bv1.add(Box.createVerticalStrut(8))

bv2=Box.createVerticalBox()

bv2.add(t2)

bv2.add(Box.createVerticalStrut(8))

bv2.add(t3)

bv2.add(Box.createVerticalStrut(8))

bv2.add(t4)

bv2.add(Box.createVerticalStrut(8))

bv2.add(t5)

bv2.add(Box.createVerticalStrut(8))

bv2.add(t6)

bv2.add(Box.createVerticalStrut(8))

baseBox=Box.createHorizontalBox()

baseBox.add(bv1)

baseBox.add(Box.createHorizontalStrut(10))

baseBox.add(bv2)

p2.add(baseBox)

add(p1,"North")

add(p2,"Center")

setSize(300,250)

setBackground(Color.red)

}

public void actionPerformed(ActionEvent e){

flag=0

try{query()}

catch(SQLException ee){}

}

public void query() throws SQLException{

String num,name,sex,subject,grade,born

con=DriverManager.getConnection("jdbc:odbc:data","","")

ResultSet rs=sql.executeQuery("SELECT * FROM jesse ")

while(rs.next()){

num=rs.getString("学号")

name=rs.getString("姓名")

sex=rs.getString("性别")

subject=rs.getString("专业")

grade=rs.getString("年级")

born=rs.getString("出生")

if(num.equals(t1.getText().trim())){

t2.setText(name)

t3.setText(sex)

t4.setText(subject)

t5.setText(grade)

t6.setText(born)

flag=1

break

}

}

con.close()

if(flag==0){t1.setText("没有该学生")}

}

}

class Update extends Panel implements ActionListener{

Connection con

Statement sql

Button b1,b2,b3

Box baseBox,bv1,bv2

TextField t1,t2,t3,t4,t5,t6

Update(){

try{

Class.forName("sun.jdbc.odbc.JdbcOdbcDriver")

}

catch(ClassNotFoundException e){}

try{

con=DriverManager.getConnection("jdbc:odbc:data","","")

sql=con.createStatement()

}

catch(SQLException ee){}

setLayout(new BorderLayout())

b1=new Button("开始修改")

b1.setBackground(Color.green)

b2=new Button("录入修改")

b2.setBackground(Color.yellow)

b3=new Button("重置")

b3.setBackground(Color.yellow)

b1.addActionListener(this)

b2.addActionListener(this)

b3.addActionListener(this)

t1=new TextField(8)

t2=new TextField(16)

t3=new TextField(16)

t4=new TextField(16)

t5=new TextField(16)

t6=new TextField(16)

Panel p1=new Panel(),p2=new Panel(),p3=new Panel()

p1.add(new Label("输入要修改信息的学号"))

p1.add(t1)

p1.add(b1)

bv1=Box.createVerticalBox()

bv1.add(new Label("(新)姓名"))

bv1.add(Box.createVerticalStrut(8))

bv1.add(new Label("(新)性别"))

bv1.add(Box.createVerticalStrut(8))

bv1.add(new Label("(新)专业"))

bv1.add(Box.createVerticalStrut(8))

bv1.add(new Label("(新)年级"))

bv1.add(Box.createVerticalStrut(8))

bv1.add(new Label("(新)出生"))

bv1.add(Box.createVerticalStrut(8))

bv2=Box.createVerticalBox()

bv2.add(t2)

bv2.add(Box.createVerticalStrut(8))

bv2.add(t3)

bv2.add(Box.createVerticalStrut(8))

bv2.add(t4)

bv2.add(Box.createVerticalStrut(8))

bv2.add(t5)

bv2.add(Box.createVerticalStrut(8))

bv2.add(t6)

bv2.add(Box.createVerticalStrut(8))

baseBox=Box.createHorizontalBox()

baseBox.add(bv1)

baseBox.add(Box.createHorizontalStrut(10))

baseBox.add(bv2)

p2.add(baseBox)

p3.add(b2)

p3.add(b3)

add(p1,"North")

add(p2,"Center")

add(p3,"South")

setSize(300,250)

setBackground(Color.cyan)

}

public void actionPerformed(ActionEvent e){

if(e.getSource()==b1){

try{

String num,name,sex,subject,grade,born

con=DriverManager.getConnection("jdbc:odbc:data","","")

ResultSet rs=sql.executeQuery("SELECT * FROM jesse ")

while(rs.next()){

num=rs.getString("学号")

name=rs.getString("姓名")

sex=rs.getString("性别")

subject=rs.getString("专业")

grade=rs.getString("年级")

born=rs.getString("出生")

if(num.equals(t1.getText().trim())){

t2.setText(name)

t3.setText(sex)

t4.setText(subject)

t5.setText(grade)

t6.setText(born)

break

}

}

con.close()

}

catch(SQLException ee){}

}

if(e.getSource()==b2){

try{update()}

catch(SQLException ee){}

}

if(e.getSource()==b3){

t2.setText(" ")

t3.setText(" ")

t4.setText(" ")

t5.setText(" ")

t6.setText(" ")

}

}

public void update() throws SQLException{

String s1="'"+t1.getText().trim()+"'"

String s2="'"+t2.getText().trim()+"'"

String s3="'"+t3.getText().trim()+"'"

String s4="'"+t4.getText().trim()+"'"

String s5="'"+t5.getText().trim()+"'"

String s6="'"+t6.getText().trim()+"'"

String temp="UPDATE jesse SET 姓名 ="+s2+", 性别="+s3+", 专业="+s4+", 年级="+s5+", 出生="+s6+" WHERE 学号="+s1

con=DriverManager.getConnection("jdbc:odbc:data","","")

sql.executeQuery(temp)

con.close()

}

}

class Delete extends Panel implements ActionListener{

Connection con

Statement sql

TextField t1,t2,t3,t4,t5,t6

Button b

Box baseBox,bv1,bv2

Delete(){

try{

Class.forName("sun.jdbc.odbc.JdbcOdbcDriver")

}

catch(ClassNotFoundException e){}

try{

con=DriverManager.getConnection("jdbc:odbc:data","","")

sql=con.createStatement()

}

catch(SQLException ee){}

setLayout(new BorderLayout())

b=new Button("删除")

b.setBackground(Color.cyan)

b.addActionListener(this)

t1=new TextField(8)

t1.addActionListener(this)

t2=new TextField(16)

t3=new TextField(16)

t4=new TextField(16)

t5=new TextField(16)

t6=new TextField(16)

t2.setEditable(false)

t3.setEditable(false)

t4.setEditable(false)

t5.setEditable(false)

t6.setEditable(false)

Panel p1=new Panel(),p2=new Panel()

p1.add(new Label("输入要删除的学号"))

p1.add(t1)

p1.add(b)

bv1=Box.createVerticalBox()

bv1.add(new Label("姓名"))

bv1.add(Box.createVerticalStrut(8))

bv1.add(new Label("性别"))

bv1.add(Box.createVerticalStrut(8))

bv1.add(new Label("专业"))

bv1.add(Box.createVerticalStrut(8))

bv1.add(new Label("年级"))

bv1.add(Box.createVerticalStrut(8))

bv1.add(new Label("出生"))

bv1.add(Box.createVerticalStrut(8))

bv2=Box.createVerticalBox()

bv2.add(t2)

bv2.add(Box.createVerticalStrut(8))

bv2.add(t3)

bv2.add(Box.createVerticalStrut(8))

bv2.add(t4)

bv2.add(Box.createVerticalStrut(8))

bv2.add(t5)

bv2.add(Box.createVerticalStrut(8))

bv2.add(t6)

bv2.add(Box.createVerticalStrut(8))

baseBox=Box.createHorizontalBox()

baseBox.add(bv1)

baseBox.add(Box.createHorizontalStrut(10))

baseBox.add(bv2)

p2.add(baseBox)

add(p1,"North")

add(p2,"Center")

setSize(300,250)

setBackground(Color.green)

}

public void actionPerformed(ActionEvent e){

if(e.getSource()==t1){

try{delete()}

catch(SQLException ee){}

}

else if(e.getSource()==b){

int n=JOptionPane.showConfirmDialog(this,"确定要删除该学号及全部信息吗?","确定",JOptionPane.YES_NO_OPTION)

if(n==JOptionPane.YES_OPTION){

try{

String s1="'"+t1.getText().trim()+"'"

String temp="DELETE FROM jesse WHERE 学号="+s1

con=DriverManager.getConnection("jdbc:odbc:data","","")

sql.executeUpdate(temp)

con.close()

}

catch(SQLException ee){}

}

else if(n==JOptionPane.NO_OPTION){}

}

}

public void delete() throws SQLException{

String num,name,sex,subject,grade,born

con=DriverManager.getConnection("jdbc:odbc:data","","")

ResultSet rs=sql.executeQuery("SELECT * FROM jesse ")

while(rs.next()){

num=rs.getString("学号")

name=rs.getString("姓名")

sex=rs.getString("性别")

subject=rs.getString("专业")

grade=rs.getString("年级")

born=rs.getString("出生")

if(num.equals(t1.getText().trim())){

t2.setText(name)

t3.setText(sex)

t4.setText(subject)

t5.setText(grade)

t6.setText(born)

break

}

}

con.close()

}

}

public class tyj extends Frame implements ActionListener{

MenuBar bar=null

Menu menu1,menu2,menu3,menu4,menu5

MenuItem item1,item2,item3,item4,item5

Add zengjia

Query chaxun

Update gengxin

Delete shanchu

tyj(){

super("欢迎进入学生信息管理系统")

zengjia=new Add()

chaxun=new Query()

gengxin=new Update()

shanchu=new Delete()

bar=new MenuBar()

menu1=new Menu("信息录入")

menu2=new Menu("信息查询")

menu3=new Menu("信息更新")

menu4=new Menu("信息删除")

menu5=new Menu("退出系统")

item1=new MenuItem("录入")

item2=new MenuItem("查询")

item3=new MenuItem("更新")

item4=new MenuItem("删除")

item5=new MenuItem("退出")

menu1.add(item1)

menu2.add(item2)

menu3.add(item3)

menu4.add(item4)

menu5.add(item5)

bar.add(menu1)

bar.add(menu2)

bar.add(menu3)

bar.add(menu4)

bar.add(menu5)

setMenuBar(bar)

item1.addActionListener(this)

item2.addActionListener(this)

item3.addActionListener(this)

item4.addActionListener(this)

item5.addActionListener(this)

Label label=new Label("欢迎进入学生信息管理系统",Label.CENTER)

String s=" "

Font f=new Font(s,Font.BOLD,22)

label.setFont(f)

label.setBackground(Color.GREEN)

label.setForeground(Color.BLUE)

add(label,"Center")

setVisible(true)

setSize(320,300)

}

public void actionPerformed(ActionEvent e){

if(e.getSource()==item1){

removeAll()

add(zengjia,"Center")

validate()

}

if(e.getSource()==item2){

removeAll()

add(chaxun,"Center")

validate()

}

if(e.getSource()==item3){

removeAll()

add(gengxin,"Center")

validate()

}

if(e.getSource()==item4){

removeAll()

add(shanchu,"Center")

validate()

}

if(e.getSource()==item5){

removeAll()

setBackground(Color.GREEN)

Label label=new Label("欢迎进入学生信息管理系统",Label.CENTER)

String s=" "

Font f=new Font(s,Font.BOLD,22)

label.setFont(f)

label.setForeground(Color.BLUE)

add(label,"Center")

validate()

}

}

public static void main(String[] args)

{

tyj jesse=new tyj()

jesse.setVisible(true)

jesse.addWindowListener(new WindowAdapter(){

public void windowClosing(WindowEvent e){

System.exit(0)

}

})

}

}

---