struts实现多图片上传

package　com.ninetowns.zhangc.struts.action;
public　class　Constant　{

　 private　Constant()　{

　 }
　 public　static　Integer　pictureSize　=　10*1024*1024;　　　//单位为byte　　　上传文件最大限额；
　 public　static　String　　pictureDirectory　=　"upload\";
}

package　com.ninetowns.zhangc.struts.action;
import　java.io.File;
import　java.io.FileOutputStream;
import　java.io.InputStream;
import　java.io.OutputStream;
import　java.util.Collection;
import　java.util.Hashtable;
import　java.util.Iterator;
import　java.util.regex.Matcher;
import　java.util.regex.Pattern;
import　javax.servlet.http.HttpServletRequest;
import　javax.servlet.http.HttpServletResponse;
import　org.apache.struts.action.ActionForm;
import　org.apache.struts.upload.FormFile;
import　org.apache.struts.upload.MultipartRequestHandler;
public　class　PictureUpLoad　{
　 private　PictureUpLoad()　{