java解压时报错“找不到文件”

今天做文件解压，学习了网上的代码后，模仿着写了一个，但是问题很头疼，报错找不到文件，然后用同样路径遍历，能遍历出文件，也试了别人的工具类，仍未解决问题，断点显示在new ZipFile（String path）时报错，下面贴完整代码：

import java.io.BufferedOutputStream;
import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.util.Enumeration;
import java.util.zip.ZipEntry;
import java.util.zip.ZipFile;

/**

• @author zy 2017/5/18
  */
  public class Unzip {
  public void DataHandle(String unzipPath) {
  final int SIZE = 2048;
  String savepath = unzipPath.substring(0, unzipPath.lastIndexOf(".")) + File.separator;
  InputStream inputStream = null;
  FileOutputStream fileOutputStream = null;
  BufferedOutputStream bufferedOutputStream = null;
  ZipFile zipFile = null;
  File unzipDir = new File(savepath);
  if (!unzipDir.exists()) {
  unzipDir.mkdirs();
  }
  try {
  zipFile = new ZipFile(unzipPath);
  Enumeration<?> entries = zipFile.entries();
  while (entries.hasMoreElements()) {
  byte buffer[] = new byte[SIZE];
  ZipEntry entry = (ZipEntry) entries.nextElement();
  String filename = entry.getName();
  boolean ismkdir = false;
  if (filename.lastIndexOf("/") != -1) {
  ismkdir = true;
  }
  filename = savepath + filename;
  File file = null;
  if (entry.isDirectory()) {
  file = new File(filename);
  file.mkdirs();
  continue;
  }
  file = new File(filename);
  if (file.exists()) {
  if (ismkdir) {
  new File(filename.substring(0, filename.lastIndexOf("/"))).mkdirs();
  }
  }
  file.createNewFile();
  inputStream = zipFile.getInputStream(entry);
  fileOutputStream = new FileOutputStream(file);
  bufferedOutputStream = new BufferedOutputStream(fileOutputStream, SIZE);
  int count;
  while ((count = inputStream.read(buffer)) > -1) {
  bufferedOutputStream.write(buffer, 0, count);
  }
  bufferedOutputStream.flush();
  bufferedOutputStream.close();
  fileOutputStream.close();
  }
  zipFile.close();
  } catch (IOException e) {
  // TODO Auto-generated catch block
  e.printStackTrace();
  } finally {
  try {
  if (bufferedOutputStream != null) {
  bufferedOutputStream.close();
  }
  if (fileOutputStream != null) {
  fileOutputStream.close();
  }
  if (inputStream != null) {
  inputStream.close();
  }
  if (zipFile != null) {
  zipFile.close();
  }
  } catch (Exception e) {
  e.printStackTrace();
  }
  }
  }

  public static void main(String[] args) {
  Unzip unzip = new Unzip();
  unzip.DataHandle(new String("‪E:"+File.separator+"test"+File.separator+"www.zip"));
  }
  }

查看一下是不是路径写错了，一般只有路径错了才这样的