myfile.java

JAVA编写的一个数据解包分发程序!希望能给初学JAVA的朋友一点朋友!

package md_accept;

import java.io.*;
import java.util.Enumeration;
import java.util.Vector;
import java.util.zip.ZipEntry;
import java.util.zip.ZipFile;

class myFile {

  myFile() {
  }

  /**
   * 将原路径下的所有文件copy到目标路径下，同名
   * @param s：原路径
   * @param s1：目标路径
   */
  public void copy(String s, String s1) {
    try {
      File file = new File(s);
      String as[] = file.list();

      for (int i = 0; i < as.length; i++) {
        File file1 = new File(s + "\\" + as[i]);

        if (file1.isFile()) {
          FileInputStream fileinputstream = new FileInputStream(file1);
          FileOutputStream fileoutputstream = new FileOutputStream(new File(s1 +
              "\\" + as[i]));
          DataInputStream datainputstream = new DataInputStream(new
              BufferedInputStream(fileinputstream));
          do {
            byte abyte0[] = new byte[1024];
            int j = datainputstream.read(abyte0);
            if (j == -1)
              break;
            fileoutputstream.write(abyte0, 0, j);
          }
          while (true);
          datainputstream.close();
          fileoutputstream.close();
        }
      }
    }
    catch (Exception e) {
      System.out.println("拷贝目录" + s + "下后缀为" + s1 + "的文件出错：" + e.getMessage());
    }
  }

  public void delete(String s) {
    try {
      File file = new File(s);
      if (!file.isFile()) {
        String as[] = (new File(s)).list();
        for (int i = 0; i < as.length; i++) {
          File file1 = new File(s + "\\" + as[i]);
          if (file1.isFile()) {
            File file2 = new File(s + "\\" + as[i]);
            file2.delete();
          }
        }
      }
      else {
        file.delete();
      }
    }
    catch (Exception e) {
      System.out.println("删除文件" + s + "出错" + e.getMessage());
    }
  }

  /**
   * 路径s下，是否存在文件s1
   * @param s
   * @param s1
   * @return
   */
  public boolean isExist(String s, String s1) {
    boolean flag = false;
    File file = new File(s);
    String as[] = file.list();
    for (int i = 0; i < as.length; i++) {
      if (as[i].toUpperCase().compareTo(s1.toUpperCase()) != 0)
        continue;
      flag = true;
      break;
    }
    return flag;
  }

  /**
   * 目录path是否存在zip文件
   * @param path
   * @return
   */
  public Vector getZipVector(String path) {
    try {
      File file = new File(path);
      if (!file.exists())
        return new Vector();

      String as[] = file.list();
      Vector vector = new Vector();
      for (int i = 0; i < as.length; i++) {
        File file1 = new File(path + "\\" + as[i]);
        String s1 = as[i].substring(as[i].indexOf(".") + 1);
        if (file1.isFile() && s1.compareToIgnoreCase("zip") == 0)
          vector.add(as[i]);
      }
      return vector;
    }
    catch (Exception e) {
      System.out.println("获得目录 " + path + " 的zip文件出错：" + e.getMessage());
      return new Vector();
    }
  }

  /**
   * 目录path是否存在zip文件
   * @param path
   * @return
   */
  public Vector getZipVector(String path,String flag) {
    try {
      File file = new File(path);
      if (!file.exists())
        return new Vector();

      String as[] = file.list();
      Vector vector = new Vector();
      for (int i = 0; i < as.length; i++) {
        File file1 = new File(path + "\\" + as[i]);
        String s1 = as[i].substring(as[i].indexOf(".") + 1);
        if(flag.equals("NSRXX")){//为纳税信息
          if (file1.isFile() && as[i].indexOf("NSRXX") >= 0 &&
              s1.compareToIgnoreCase("zip") == 0)
            vector.add(as[i]);
        }else{//反馈
          if (file1.isFile() && as[i].indexOf("NSRXX") <0 &&
              s1.compareToIgnoreCase("zip") == 0)
            vector.add(as[i]);
        }
      }
      return vector;
    }
    catch (Exception e) {
      System.out.println("获得目录 " + path + " 的zip文件出错：" + e.getMessage());
      return new Vector();
    }
  }

  /**
   * 获得某个目录path下的，所有的end文件
   * @param path
   * @return
   */
  public Vector getEndVector(String path) {
    Vector vector = null;

    try {
      File file = new File(path);
      String as[] = file.list();

      vector = new Vector();
      for (int i = 0; i < as.length; i++) {
        File file1 = new File(path + "\\" + as[i]);
        String s1 = as[i].substring(as[i].indexOf(".") + 1);

        if (file1.isFile() && s1.toUpperCase().compareTo("END") == 0)
          vector.add(as[i]);
      }
      return vector;
    }
    catch (Exception e) {
      System.out.println("获得目录 " + path + " 的end文件出错：" + e.getMessage());
      return new Vector();
    }
  }

  /**
   * 获得配置文件属性
   * @param s
   * @param s1
   * @return
   */
  public String getConfigValue(String s, String s1) {
    String s2 = null;
    BufferedReader bufferedreader = null;

    try {
      File file = new File(s);
      bufferedreader = new BufferedReader(new FileReader(file));
      for (String s3 = bufferedreader.readLine(); s3 != null;
           s3 = bufferedreader.readLine()) {
        if (s3.indexOf(s1) == -1)
          continue;
        int i = s3.indexOf("=");
        s2 = (s3.substring(i + 1)).trim();
        break;
      }
    }
    catch (Exception e) {
      System.out.println("获得配置文件属性出错：" + e.getMessage());
    }
    finally {
      try {
        if (bufferedreader != null)
          bufferedreader.close();
      }
      catch (Exception e) {}
    }
    return s2;
  }

  /**
   * 删除目录下后缀为s1的文件
   * @param path:目录
   * @param s1：后缀
   */
  public static void delete(String path, String s1) {
    try {
      String as[] = (new File(path)).list();
      for (int i = 0; i < as.length; i++) {
        File file = new File(path + "\\" + as[i]);
        if (!file.isFile())
          continue;
        String s2 = as[i].substring(as[i].indexOf(".") + 1);
        if (s2.compareToIgnoreCase(s1) != 0)
          continue;

        File file1 = new File(path + "\\" + as[i]);
        file1.delete();
      }
    }
    catch (Exception e) {
      System.out.println("删除目录" + path + "下后缀为" +
                         s1 + "的文件出错：" + e.getMessage());
    }
  }

}