package test.com;
 
import java.io.File;
import java.io.FileNotFoundException;
import java.io.IOException;
 
public class ReadFile {
  public ReadFile() {
  }
  /**
   * 读取某个文件夹下的所有文件
   */
  public static boolean readfile(String filepath) throws FileNotFoundException, IOException {
      try {
 
          File file = new File(filepath);
          if (!file.isDirectory()) {
//              System.out.println("文件");
//              System.out.println("path=" + file.getPath());
//              System.out.println("absolutepath=" + file.getAbsolutePath());
              System.out.println(file.getName());
 
          } else if (file.isDirectory()) {
              String[] filelist = file.list();
              for (int i = 0; i < filelist.length; i++) {
                  File readfile = new File(filepath + "\\" + filelist[i]);
                  if (!readfile.isDirectory()) {
//                      System.out.println("path=" + readfile.getPath());
//                      System.out.println("absolutepath="
//                              + readfile.getAbsolutePath());
                      System.out.println(readfile.getName());
 
                  } else if (readfile.isDirectory()) {
                      readfile(filepath + "\\" + filelist[i]);
                  }
              }
 
          }
 
      } catch (FileNotFoundException e) {
          System.out.println("readfile()  Exception:" + e.getMessage());
      }
      return true;
  }
 
  /**
   * 删除某个文件夹下的所有文件夹和文件
   */
   
   
  /*public static boolean deletefile(String delpath)
          throws FileNotFoundException, IOException {
      try {
 
          File file = new File(delpath);
          if (!file.isDirectory()) {
              System.out.println("1");
              file.delete();
          } else if (file.isDirectory()) {
              System.out.println("2");
              String[] filelist = file.list();
              for (int i = 0; i < filelist.length; i++) {
                  File delfile = new File(delpath + "\\" + filelist[i]);
                  if (!delfile.isDirectory()) {
                      System.out.println("path=" + delfile.getPath());
                      System.out.println("absolutepath="
                              + delfile.getAbsolutePath());
                      System.out.println("name=" + delfile.getName());
                      delfile.delete();
                      System.out.println("删除文件成功");
                  } else if (delfile.isDirectory()) {
                      deletefile(delpath + "\\" + filelist[i]);
                  }
              }
              file.delete();
 
          }
 
      } catch (FileNotFoundException e) {
          System.out.println("deletefile()  Exception:" + e.getMessage());
      }
      return true;
  }*/
   
  public static void main(String[] args) {
      try {
          readfile("C:\\Users\\SW\\Desktop\\SKJ_H25補正\\004_RCAG\\003_SKJ");
          // deletefile("D:/file");
      } catch (FileNotFoundException ex) {
      } catch (IOException ex) {
      }
      System.out.println("ok");
  }
 
}

package otherstudy;

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

/**
 * @ClassName: TestReadFile
 * @CreateTime: Aug 1, 2014 11:42:44 AM
 * @Author: mayi
 * @Description: 读取和删除文件夹下的所有文件
 *
 */
public class TestReadFile {
 /**
  * 获取工程的WebRoot的绝对路径
  * @return
  */
 String getProjectPath(){
  //得到形如"/d:/${workspace}/${projectName}/WebRoot/WEB-INF/classes/"的 路径
    String path=this.getClass().getResource("/").getPath();
    //从路径字符串中取出工程路径
    path=path.substring(1, path.indexOf("WEB-INF/classes"));
    System.out.println("工程路径："+path);
    return path;
 }
 /**
  * @param args
  */
 public static void main(String[] args) {
  TestReadFile trf=new TestReadFile();
  String xmlPath = trf.getProjectPath()+ "testDocs";
  try {
   readAllFile(xmlPath);
  } catch (FileNotFoundException e) {
   e.printStackTrace();
  } catch (IOException e) {
   e.printStackTrace();
  }
 }
 /**
  * 读取指定路径文件夹下的所有文件
  * @param filepath
  * @return
  * @throws FileNotFoundException
  * @throws IOException
  */
 public static boolean readAllFile(String filepath)
   throws FileNotFoundException, IOException {
  try {
   File file = new File(filepath);
   if (!file.isDirectory()) {
    System.out.println("\n文件信息：");
    System.out.println("\t相对路径=" + file.getPath());
    System.out.println("\t绝对路径=" + file.getAbsolutePath());
    System.out.println("\t文件全名=" + file.getName());

   } else if (file.isDirectory()) {
    System.out.println("\n文件夹内文件列表信息：");
    File[] fileList = file.listFiles();
    for (int i = 0; i < fileList.length; i++) {
     File readfile = fileList[i];
     if (!readfile.isDirectory()) {
      System.out.println("\n\t相对路径=" + readfile.getPath());
      System.out.println("\t绝对路径=" + readfile.getAbsolutePath());
      System.out.println("\t文件全名=" + readfile.getName());
     } else if (readfile.isDirectory()) {
      readAllFile(fileList[i].getPath());
     }
    }
   }
  } catch (FileNotFoundException e) {
   System.out.println("readfile()  Exception:" + e.getMessage());
  }
  return true;
 }

 /**
  * 删除某个文件夹下的所有文件夹和文件
  * @param delpath
  * @return
  * @throws FileNotFoundException
  * @throws IOException
  */
 public static boolean deleteFile(String delpath)
   throws FileNotFoundException, IOException {
  try {
   File file = new File(delpath);
   if (!file.isDirectory()) {
    System.out.println("1");
    file.delete();
   } else if (file.isDirectory()) {
    System.out.println("2");
    File[] fileList = file.listFiles();
    for (int i = 0; i < fileList.length; i++) {
     File delfile = fileList[i];
     if (!delfile.isDirectory()) {
      System.out.println("相对路径=" + delfile.getPath());
      System.out.println("绝对路径=" + delfile.getAbsolutePath());
      System.out.println("文件全名=" + delfile.getName());
      delfile.delete();
      System.out.println("删除文件成功");
     } else if (delfile.isDirectory()) {
      deleteFile(fileList[i].getPath());
     }
    }
    file.delete();
   }
  } catch (FileNotFoundException e) {
   System.out.println("deletefile()  Exception:" + e.getMessage());
  }
  return true;
 }
}