java - 打印目录中多个文件的所有内容

Question

我在下面看到了以下代码，该代码查找目录，然后打印所有不同的文件名。现在我的问题是，我将如何更改我的代码，以便它也可以打印出它找到/打印的文件中的所有内容？举个例子，假设代码在目录中找到 3 个文件，那么它将打印出这 3 个文件中的所有内容。

import java.io.File;
import java.io.IOException;

public class EScan {


static String usernamePc = System.getProperty("user.name");
final static File foldersPc = new File("/Users/" + usernamePc + "/Library/Mail/V2");

public static void main(String[] args) throws IOException {

    listFilesForFolder(foldersPc);

}

public static void listFilesForFolder(final File foldersPc) throws IOException {
    for (final File fileEntry : foldersPc.listFiles()) {
        if (fileEntry.isDirectory()) {
            listFilesForFolder(fileEntry);
        } else {
            System.out.println(fileEntry.getName());
        }
    }
}

}

Answer 1

我在发布之前测试了它。它正在工作。

import java.io.BufferedReader;
import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileReader;
import java.io.IOException;
import java.util.logging.Level;
import java.util.logging.Logger;

/**
 * @author EdwinAdeola
 */
public class TestPrintAllFiles {

    public static void main(String[] args) {
        //Accessing the folder path
        File myFolder = new File("C:\\Intel");
        File[] listOfFiles = myFolder.listFiles();
        String fileName, line = null;
        BufferedReader br;
        //For each loop to print the content of each file
        for (File eachFile : listOfFiles) {
            if (eachFile.isFile()) {
                try {
                    //System.out.println(eachFile.getName());
                    fileName = eachFile.getAbsolutePath();
                    br = new BufferedReader(new FileReader(fileName));

                    try {
                        while ((line = br.readLine()) != null) {
                            System.out.println(line);
                        }
                    } catch (IOException ex) {
                        Logger.getLogger(TestPrintAllFiles.class.getName()).log(Level.SEVERE, null, ex);
                    }
                } catch (FileNotFoundException ex) {
                    Logger.getLogger(TestPrintAllFiles.class.getName()).log(Level.SEVERE, null, ex);
                }
            }
        }
    }
}