JAVA遍历路径下所有文件

最新推荐文章于 2022-03-09 19:17:59 发布

andyflyrain

最新推荐文章于 2022-03-09 19:17:59 发布

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本示例展示了一个Java应用程序如何通过GUI接收文件路径输入，并递归地获取该路径下所有文件名，随后将这些文件名批量插入到Oracle数据库中。

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项目ORACLE的JDBC驱动

代码如下:

Java代码

package com.gui.file;
import java.awt.FlowLayout;
import java.awt.TextField;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.util.List;
import javax.swing.JButton;
import javax.swing.JFrame;
public class filenameSave {
private static TextField text1;
private static JButton send = new JButton("确定");
public static void main(String[] args) {
JFrame f = new JFrame();
f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
f.setLayout(new FlowLayout());
f.setBounds(50, 50, 300, 200);
text1 = new TextField("", 30);
text1.setLocation(30, 30);
f.add(text1);
f.add(send);
// 在文本框中的事件是:输入文本并回车
text1.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
if (!text1.getText().equals("")) {
text1.setText("");
}
}
});
send.addActionListener(new ActionListener(){
@Override
public void actionPerformed(ActionEvent e) {
String strPath = text1.getText();
fileTraverse filenameList = new fileTraverse();
DataOperate ds = new DataOperate();
List<String> list = filenameList.refreshFileList(strPath);
if(list!=null){
for(String name :list){
String sql = "insert into fileName (filename) values ('" + name+"')" ;
System.out.println(sql);
ds.saveDate(sql);
}
}
}});
f.setVisible(true);
}
}

Java代码

package com.gui.file;
/*
* To change this template, choose Tools | Templates
* and open the template in the editor.
*/
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.SQLException;
import java.sql.Statement;
import java.sql.ResultSet;
/**
*数据库操作类
* @author zhuyuehua
*/
public class DataOperate {
private String dbDriver = "oracle.jdbc.driver.OracleDriver";
private String url = "jdbc:oracle:thin:@127.0.0.1:1521:test";
private String username = "test";
private String password = "test";
private Connection con = null;
public void JDBConnection() {
try {
Class.forName(dbDriver).newInstance(); //加载数据库驱动
System.out.println("数据库加载成功");
}
catch (Exception ex) {
System.out.println("数据库加载失败");
}
}
//创建数据库连接
public boolean creatConnection() {
try {
Class.forName(dbDriver);
con = DriverManager.getConnection(url, username, password);
System.out.println("连接数据库成功");
}catch(ClassNotFoundException ce)
{
System.out.println(" 数据库连接失败！\n");
ce.printStackTrace();
}
catch (SQLException e) {
e.printStackTrace();
}
return true;
}
//关闭数据库的操作
public void closeConnection() {
if (con != null) {
try {
con.close();
System.out.println("关闭数据库成功");
}
catch (SQLException e) {
e.printStackTrace();
}
finally {
con = null;
}
}
}
//保存数据
public boolean saveDate(String sql){
if (con == null) {
creatConnection();
}
try {
Statement stmt = con.createStatement();
stmt.executeUpdate(sql);
stmt.close();
}catch (SQLException e) {
return false;
}finally{
closeConnection();
}
return true;
}
}

Java代码

package com.gui.file;
import java.io.File;
import java.util.ArrayList;
import java.util.List;
public class fileTraverse {
private List<String> list = new ArrayList<String>();
public List<String> refreshFileList(String strPath) {
File dir = new File(strPath);
File[] files = dir.listFiles();
if (files == null)
return null;
for (int i = 0; i < files.length; i++) {
if (files[i].isDirectory()) {
refreshFileList(files[i].getAbsolutePath());
} else {
//String strFileName = files[i].getAbsolutePath().toLowerCase();
String strFileName = files[i].getName();
//System.out.println(strFileName);
list.add(strFileName);
}
}
return list;
}
}

http://zhuyuehua.iteye.com/blog/1181814