Java 遍历指定路径下的所有文件和子文件夹


package fileinfo;
 
import java.io.File;
 
public class FileInfo {
    private File fp;
    private int index;
    private int level;
 
    public FileInfo(File fp,int index,int level){
        this.fp=fp;
        this.index=index;
        this.level=level;
    }
 
    public File getFp() {
        return fp;
    }
 
    public int getIndex() {
        return index;
    }
 
    public int getLevel() {
        return level;
    }
 
    public void setIndex(int index) {
        this.index = index;
    }
}


package fileinfo;
 
import java.io.File;
import java.util.Stack;
 
public class Test {
    private static void treeView(String path) {
        int cnt;
        File f = new File(path);
        if (f.isFile()) {
            System.out.println(f.getName());
            return;
        }
 
        Stack stk = new Stack();
 
        boolean foundDir;
        FileInfo finfo = new FileInfo(f, 0, 0);
 
        stk.push(finfo);
        while (!stk.empty()) {//如果不空
            finfo = stk.peek();
            f = finfo.getFp();
            cnt=f.getName().length();
            foundDir = false;
 
            for (int i = finfo.getIndex(); !foundDir && i < f.listFiles().length; i++) {
                for (int j = 0; j < finfo.getLevel()*10; j++) {
                    System.out.print(" ");
                }
 
                System.out.print(f.listFiles()[i].getName());
                if (f.listFiles()[i].isDirectory()) {
                    System.out.print(" *");
                    finfo.setIndex(i + 1);
                    stk.push(new FileInfo(f.listFiles()[i], 0, finfo.getLevel() + 1));
                    foundDir = true;
                }
                System.out.println();
            }
            if (!foundDir)
                stk.pop();
        }
    }
 
    public static void main(String[] args) {
        treeView("d:\\Program");
    }
}

.gitignore
.idea *
.gitignore
libraries *
lib.xml
MigLayout.xml
misc.xml
modules.xml
workspace.xml
data.txt
hero.lrc
lib *
miglayout-core-javadoc.jar
miglayout-core-sources.jar
miglayout-core.jar
miglayout-swing-javadoc.jar
miglayout-swing-sources.jar
miglayout-swing.jar
mysql-connector-j-8.0.33.jar
out *
production *
project001 *
cn *
com *
C1.class
C2.class
C3.class
C4.class
C5.class
C6.class
C7.class
C8.class
C9.class
jform *
myJForm.class
myJForm.jfd
MyClass.class
p71 *
Circle.class
Cylinder.class
Test.class
Yun2_4_shixun2.class
com *
abc *
project1 *
A.class
project2 *
B.class
course *
service *
FactorialSum.class
eexam6 *
Book.class
Test_Book.class
fileinfo *
FileInfo.class
Test.class
Main.class
test *
JDBC.class
week3 *
day3 *
Employee.class
Manager.class
Test_Employee.class
day4 *
A.class
B.class
Test.class
exam1 *
Employee.class
Test.class
exam2 *
Employee.class
Test.class
exam3 *
Employee.class
Test.class
exam4 *
Employee.class
Singleton.class
Test.class
exam5 *
Book.class
Employee.class
Singleton.class
Test.class
TestSingleton.class
Test_Book.class
exam6 *
Info.class
Lyric.class
Yun2_4.class
xxx *
project1 *
A.class
project2 *
B.class
project001.iml
src *
cn *
com *
C1.java
C2.java
C3.java
C4.java
C5.java
C6.java
C7.java
C8.java
C9.java
jform *
myJForm.java
myJForm.jfd
MyClass.java
p71 *
Circle.java
Cylinder.java
Test.java
Yun2_4_shixun2.java
com *
abc *
project1 *
A.java
project2 *
B.java
course *
entity *
service *
FactorialSum.java
util *
eexam6 *
Test_Book.java
fileinfo *
FileInfo.java
Test.java
Main.java
test *
JDBC.java
week3 *
day3 *
Employee.java
Manager.java
Test_Employee.java
day4 *
Test.java
exam1 *
Employee.java
Test.java
exam2 *
Employee.java
Test.java
exam3 *
Employee.java
Test.java
exam4 *
Employee.java
Singleton.java
Test.java
exam5 *
Book.java
Employee.java
Singleton.java
Test.java
TestSingleton.java
Test_Book.java
exam6 *
Info.java
Lyric.java
Yun2_4.java
xxx *
project1 *
A.java
project2 *
B.java
三个源码及真心英雄歌词与音频 *
hero.lrc
Info.java
Lyric.java
Yun2_4.java
真心英雄.wav
三个源码及真心英雄歌词与音频.zip
真心英雄.wav

小改动的代码：


package fileinfo;
 
import java.io.File;
import java.util.Stack;
 
public class Test {
    private static void treeView(String path) {
        int cnt;
        File f = new File(path);
        if (f.isFile()) {
            System.out.println(f.getName());
            return;
        }
 
        Stack stk = new Stack();
 
        boolean foundDir;
        FileInfo finfo = new FileInfo(f, 0, 0);
        int level;
        int index;
 
        stk.push(finfo);
        while (!stk.empty()) {//如果不空
            finfo = stk.peek();
            f = finfo.getFp();
            level=finfo.getLevel();//第几层
            index=finfo.getIndex();//某层第index个文件
            foundDir = false;
 
            for (int i = index; i < f.listFiles().length; i++) {
                for (int j = 0; j < level*10; j++) {
                    System.out.print(" ");
                }
 
                System.out.print(i+ " " +f.listFiles()[i].getName());
                if (f.listFiles()[i].isDirectory()) {
                    System.out.println(" **DIR**");
                    finfo.setIndex(i + 1);// 标记下一个没有处理的文件
                    FileInfo sub = new FileInfo(f.listFiles()[i], 0, level + 1);
                    stk.push(sub);
                    foundDir = true;
                    break;
                }
                System.out.println();
            }
            if (!foundDir)
                stk.pop();
        }
    }
 
    public static void main(String[] args) {
        treeView("d:\\Program\\teach\\project001\\");
    }
}

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原文地址：https://blog.csdn.net/laocooon/article/details/132783365