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          JspSmart之upload組件源碼及使用

          Posted on 2006-12-17 16:25 semovy 閱讀(445) 評論(0)  編輯  收藏 所屬分類: J2EE綜合
          JspSmart之upload組件源碼主要包括了5個java文件

          File.java

          import java.io.ByteArrayInputStream;
          import java.io.FileOutputStream;
          import java.io.IOException;
          import java.math.BigInteger;
          import java.sql.ResultSet;
          import java.sql.SQLException;
          import javax.servlet.ServletException;

          // Referenced classes of package com.jspsmart.upload:
          // SmartUploadException, SmartUpload

          public class File
          {

          private SmartUpload m_parent;
          private int m_startData;
          private int m_endData;
          private int m_size;
          private String m_fieldname;
          private String m_filename;
          private String m_fileExt;
          private String m_filePathName;
          private String m_contentType;
          private String m_contentDisp;
          private String m_typeMime;
          private String m_subTypeMime;
          private String m_contentString;
          private boolean m_isMissing;
          public static final int SAVEAS_AUTO = 0;
          public static final int SAVEAS_VIRTUAL = 1;
          public static final int SAVEAS_PHYSICAL = 2;

          File()
          {
          m_startData = 0;
          m_endData = 0;
          m_size = 0;
          m_fieldname = new String();
          m_filename = new String();
          m_fileExt = new String();
          m_filePathName = new String();
          m_contentType = new String();
          m_contentDisp = new String();
          m_typeMime = new String();
          m_subTypeMime = new String();
          m_contentString = new String();
          m_isMissing = true;
          }

          public void saveAs(String s)
          throws IOException, SmartUploadException
          {
          saveAs(s, 0);
          }

          public void saveAs(String s, int i)
          throws IOException, SmartUploadException
          {
          String s1 = new String();
          s1 = m_parent.getPhysicalPath(s, i);
          if(s1 == null)
          throw new IllegalArgumentException("There is no specified destination file (1140).");
          try
          {
          java.io.File file = new java.io.File(s1);
          FileOutputStream fileoutputstream = new FileOutputStream(file);
          fileoutputstream.write(m_parent.m_binArray, m_startData, m_size);
          fileoutputstream.close();
          }
          catch(IOException ioexception)
          {
          throw new SmartUploadException("File can't be saved (1120).");
          }
          }

          public void fileToField(ResultSet resultset, String s)
          throws ServletException, IOException, SmartUploadException, SQLException
          {
          long l = 0L;
          int i = 0x10000;
          int j = 0;
          int k = m_startData;
          if(resultset == null)
          throw new IllegalArgumentException("The RecordSet cannot be null (1145).");
          if(s == null)
          throw new IllegalArgumentException("The columnName cannot be null (1150).");
          if(s.length() == 0)
          throw new IllegalArgumentException("The columnName cannot be empty (1155).");
          l = BigInteger.valueOf(m_size).divide(BigInteger.valueOf(i)).longValue();
          j = BigInteger.valueOf(m_size).mod(BigInteger.valueOf(i)).intValue();
          try
          {
          for(int i1 = 1; (long)i1 < l; i1++)
          {
          resultset.updateBinaryStream(s, new ByteArrayInputStream(m_parent.m_binArray, k, i), i);
          k = k != 0 ? k : 1;
          k = i1 * i + m_startData;
          }

          if(j > 0)
          resultset.updateBinaryStream(s, new ByteArrayInputStream(m_parent.m_binArray, k, j), j);
          }
          catch(SQLException sqlexception)
          {
          byte abyte0[] = new byte[m_size];
          System.arraycopy(m_parent.m_binArray, m_startData, abyte0, 0, m_size);
          resultset.updateBytes(s, abyte0);
          }
          catch(Exception exception)
          {
          throw new SmartUploadException("Unable to save file in the DataBase (1130).");
          }
          }

          public boolean isMissing()
          {
          return m_isMissing;
          }

          public String getFieldName()
          {
          return m_fieldname;
          }

          public String getFileName()
          {
          return m_filename;
          }

          public String getFilePathName()
          {
          return m_filePathName;
          }

          public String getFileExt()
          {
          return m_fileExt;
          }

          public String getContentType()
          {
          return m_contentType;
          }

          public String getContentDisp()
          {
          return m_contentDisp;
          }

          public String getContentString()
          {
          String s = new String(m_parent.m_binArray, m_startData, m_size);
          return s;
          }

          public String getTypeMIME()
          throws IOException
          {
          return m_typeMime;
          }

          public String getSubTypeMIME()
          {
          return m_subTypeMime;
          }

          public int getSize()
          {
          return m_size;
          }

          protected int getStartData()
          {
          return m_startData;
          }

          protected int getEndData()
          {
          return m_endData;
          }

          protected void setParent(SmartUpload smartupload)
          {
          m_parent = smartupload;
          }

          protected void setStartData(int i)
          {
          m_startData = i;
          }

          protected void setEndData(int i)
          {
          m_endData = i;
          }

          protected void setSize(int i)
          {
          m_size = i;
          }

          protected void setIsMissing(boolean flag)
          {
          m_isMissing = flag;
          }

          protected void setFieldName(String s)
          {
          m_fieldname = s;
          }

          protected void setFileName(String s)
          {
          m_filename = s;
          }

          protected void setFilePathName(String s)
          {
          m_filePathName = s;
          }

          protected void setFileExt(String s)
          {
          m_fileExt = s;
          }

          protected void setContentType(String s)
          {
          m_contentType = s;
          }

          protected void setContentDisp(String s)
          {
          m_contentDisp = s;
          }

          protected void setTypeMIME(String s)
          {
          m_typeMime = s;
          }

          protected void setSubTypeMIME(String s)
          {
          m_subTypeMime = s;
          }

          public byte getBinaryData(int i)
          {
          if(m_startData + i > m_endData)
          throw new ArrayIndexOutOfBoundsException("Index Out of range (1115).");
          if(m_startData + i <= m_endData)
          return m_parent.m_binArray[m_startData + i];
          else
          return 0;
          }
          }


          Files.java

          import java.io.IOException;
          import java.util.*;

          // Referenced classes of package com.jspsmart.upload:
          // File, SmartUpload

          public class Files
          {

          private SmartUpload m_parent;
          private Hashtable m_files;
          private int m_counter;

          Files()
          {
          m_files = new Hashtable();
          m_counter = 0;
          }

          protected void addFile(File file)
          {
          if(file == null)
          {
          throw new IllegalArgumentException("newFile cannot be null.");
          } else
          {
          m_files.put(new Integer(m_counter), file);
          m_counter++;
          return;
          }
          }

          public File getFile(int i)
          {
          if(i < 0)
          throw new IllegalArgumentException("File's index cannot be a negative value (1210).");
          File file = (File)m_files.get(new Integer(i));
          if(file == null)
          throw new IllegalArgumentException("Files' name is invalid or does not exist (1205).");
          else
          return file;
          }

          public int getCount()
          {
          return m_counter;
          }

          public long getSize()
          throws IOException
          {
          long l = 0L;
          for(int i = 0; i < m_counter; i++)
          l += getFile(i).getSize();

          return l;
          }

          public Collection getCollection()
          {
          return m_files.values();
          }

          public Enumeration getEnumeration()
          {
          return m_files.elements();
          }
          }


          Request.java

          import java.util.Enumeration;
          import java.util.Hashtable;

          public class Request
          {

          private Hashtable m_parameters;
          private int m_counter;

          Request()
          {
          m_parameters = new Hashtable();
          m_counter = 0;
          }

          protected void putParameter(String s, String s1)
          {
          if(s == null)
          throw new IllegalArgumentException("The name of an element cannot be null.");
          if(m_parameters.containsKey(s))
          {
          Hashtable hashtable = (Hashtable)m_parameters.get(s);
          hashtable.put(new Integer(hashtable.size()), s1);
          } else
          {
          Hashtable hashtable1 = new Hashtable();
          hashtable1.put(new Integer(0), s1);
          m_parameters.put(s, hashtable1);
          m_counter++;
          }
          }

          public String getParameter(String s)
          {
          if(s == null)
          throw new IllegalArgumentException("Form's name is invalid or does not exist (1305).");
          Hashtable hashtable = (Hashtable)m_parameters.get(s);
          if(hashtable == null)
          return null;
          else
          return (String)hashtable.get(new Integer(0));
          }

          public Enumeration getParameterNames()
          {
          return m_parameters.keys();
          }

          public String[] getParameterValues(String s)
          {
          if(s == null)
          throw new IllegalArgumentException("Form's name is invalid or does not exist (1305).");
          Hashtable hashtable = (Hashtable)m_parameters.get(s);
          if(hashtable == null)
          return null;
          String as[] = new String[hashtable.size()];
          for(int i = 0; i < hashtable.size(); i++)
          as[i] = (String)hashtable.get(new Integer(i));

          return as;
          }
          }


          SmartUploadException .java

          public class SmartUploadException extends Exception
          {

          SmartUploadException(String s)
          {
          super(s);
          }
          }


          SmartUpload.java

          import java.io.*;
          import java.sql.ResultSet;
          import java.sql.SQLException;
          import java.util.Vector;
          import javax.servlet.*;
          import javax.servlet.http.*;
          import javax.servlet.jsp.JspWriter;
          import javax.servlet.jsp.PageContext;

          // Referenced classes of package com.jspsmart.upload:
          // Files, Request, SmartUploadException, File

          public class SmartUpload
          {

          protected byte m_binArray[];
          protected HttpServletRequest m_request;
          protected HttpServletResponse m_response;
          protected ServletContext m_application;
          private int m_totalBytes;
          private int m_currentIndex;
          private int m_startData;
          private int m_endData;
          private String m_boundary;
          private long m_totalMaxFileSize;
          private long m_maxFileSize;
          private Vector m_deniedFilesList;
          private Vector m_allowedFilesList;
          private boolean m_denyPhysicalPath;
          private boolean m_forcePhysicalPath;
          private String m_contentDisposition;
          public static final int SAVE_AUTO = 0;
          public static final int SAVE_VIRTUAL = 1;
          public static final int SAVE_PHYSICAL = 2;
          private Files m_files;
          private Request m_formRequest;

          public SmartUpload()
          {
          m_totalBytes = 0;
          m_currentIndex = 0;
          m_startData = 0;
          m_endData = 0;
          m_boundary = new String();
          m_totalMaxFileSize = 0L;
          m_maxFileSize = 0L;
          m_deniedFilesList = new Vector();
          m_allowedFilesList = new Vector();
          m_denyPhysicalPath = false;
          m_forcePhysicalPath = false;
          m_contentDisposition = new String();
          m_files = new Files();
          m_formRequest = new Request();
          }

          public final void init(ServletConfig servletconfig)
          throws ServletException
          {
          m_application = servletconfig.getServletContext();
          }

          public void service(HttpServletRequest httpservletrequest, HttpServletResponse httpservletresponse)
          throws ServletException, IOException
          {
          m_request = httpservletrequest;
          m_response = httpservletresponse;
          }

          public final void initialize(ServletConfig servletconfig, HttpServletRequest httpservletrequest, HttpServletResponse httpservletresponse)
          throws ServletException
          {
          m_application = servletconfig.getServletContext();
          m_request = httpservletrequest;
          m_response = httpservletresponse;
          }

          public final void initialize(PageContext pagecontext)
          throws ServletException
          {
          m_application = pagecontext.getServletContext();
          m_request = (HttpServletRequest)pagecontext.getRequest();
          m_response = (HttpServletResponse)pagecontext.getResponse();
          }

          public final void initialize(ServletContext servletcontext, HttpSession httpsession, HttpServletRequest httpservletrequest, HttpServletResponse httpservletresponse, JspWriter jspwriter)
          throws ServletException
          {
          m_application = servletcontext;
          m_request = httpservletrequest;
          m_response = httpservletresponse;
          }

          public void upload()
          throws ServletException, IOException, SmartUploadException
          {
          int i = 0;
          boolean flag = false;
          long l = 0L;
          boolean flag1 = false;
          String s = new String();
          String s2 = new String();
          String s4 = new String();
          String s5 = new String();
          String s6 = new String();
          String s7 = new String();
          String s8 = new String();
          String s9 = new String();
          String s10 = new String();
          boolean flag2 = false;
          m_totalBytes = m_request.getContentLength();
          m_binArray = new byte[m_totalBytes];
          int j;
          for(; i < m_totalBytes; i += j)
          try
          {
          m_request.getInputStream();
          j = m_request.getInputStream().read(m_binArray, i, m_totalBytes - i);
          }
          catch(Exception exception)
          {
          throw new SmartUploadException("Unable to upload.");
          }

          for(; !flag1 && m_currentIndex < m_totalBytes; m_currentIndex++)
          if(m_binArray[m_currentIndex] == 13)
          flag1 = true;
          else
          m_boundary = m_boundary + (char)m_binArray[m_currentIndex];

          if(m_currentIndex == 1)
          return;
          for(m_currentIndex++; m_currentIndex < m_totalBytes; m_currentIndex = m_currentIndex + 2)
          {
          String s1 = getDataHeader();
          m_currentIndex = m_currentIndex + 2;
          boolean flag3 = s1.indexOf("filename") > 0;
          String s3 = getDataFieldValue(s1, "name");
          if(flag3)
          {
          s6 = getDataFieldValue(s1, "filename");
          s4 = getFileName(s6);
          s5 = getFileExt(s4);
          s7 = getContentType(s1);
          s8 = getContentDisp(s1);
          s9 = getTypeMIME(s7);
          s10 = getSubTypeMIME(s7);
          }
          getDataSection();
          if(flag3 && s4.length() > 0)
          {
          if(m_deniedFilesList.contains(s5))
          throw new SecurityException("The extension of the file is denied to be uploaded (1015).");
          if(!m_allowedFilesList.isEmpty() && !m_allowedFilesList.contains(s5))
          throw new SecurityException("The extension of the file is not allowed to be uploaded (1010).");
          if(m_maxFileSize > 0L && (long)((m_endData - m_startData) + 1) > m_maxFileSize)
          throw new SecurityException("Size exceeded for this file : " + s4 + " (1105).");
          l += (m_endData - m_startData) + 1;
          if(m_totalMaxFileSize > 0L && l > m_totalMaxFileSize)
          throw new SecurityException("Total File Size exceeded (1110).");
          }
          if(flag3)
          {
          com.facet.jspsmart.upload.File file = new com.facet.jspsmart.upload.File();
          file.setParent(this);
          file.setFieldName(s3);
          file.setFileName(s4);
          file.setFileExt(s5);
          file.setFilePathName(s6);
          file.setIsMissing(s6.length() == 0);
          file.setContentType(s7);
          file.setContentDisp(s8);
          file.setTypeMIME(s9);
          file.setSubTypeMIME(s10);
          if(s7.indexOf("application/x-macbinary") > 0)
          m_startData = m_startData + 128;
          file.setSize((m_endData - m_startData) + 1);
          file.setStartData(m_startData);
          file.setEndData(m_endData);
          m_files.addFile(file);
          } else
          {
          String s11 = new String(m_binArray, m_startData, (m_endData - m_startData) + 1);
          m_formRequest.putParameter(s3, s11);
          }
          if((char)m_binArray[m_currentIndex + 1] == '-')
          break;
          }

          }

          public int save(String s)
          throws ServletException, IOException, SmartUploadException
          {
          return save(s, 0);
          }

          public int save(String s, int i)
          throws ServletException, IOException, SmartUploadException
          {
          int j = 0;
          if(s == null)
          s = m_application.getRealPath("/");
          if(s.indexOf("/") != -1)
          {
          if(s.charAt(s.length() - 1) != '/')
          s = s + "/";
          } else
          if(s.charAt(s.length() - 1) != '\\')
          s = s + "\\";
          for(int k = 0; k < m_files.getCount(); k++)
          if(!m_files.getFile(k).isMissing())
          {
          m_files.getFile(k).saveAs(s + m_files.getFile(k).getFileName(), i);
          j++;
          }

          return j;
          }

          public int getSize()
          {
          return m_totalBytes;
          }

          public byte getBinaryData(int i)
          {
          byte byte0;
          try
          {
          byte0 = m_binArray[i];
          }
          catch(Exception exception)
          {
          throw new ArrayIndexOutOfBoundsException("Index out of range (1005).");
          }
          return byte0;
          }

          public Files getFiles()
          {
          return m_files;
          }

          public Request getRequest()
          {
          return m_formRequest;
          }

          public void downloadFile(String s)
          throws ServletException, IOException, SmartUploadException
          {
          downloadFile(s, null, null);
          }

          public void downloadFile(String s, String s1)
          throws ServletException, IOException, SmartUploadException, SmartUploadException
          {
          downloadFile(s, s1, null);
          }

          public void downloadFile(String s, String s1, String s2)
          throws ServletException, IOException, SmartUploadException
          {
          downloadFile(s, s1, s2, 65000);
          }

          public void downloadFile(String s, String s1, String s2, int i)
          throws ServletException, IOException, SmartUploadException
          {
          if(s == null)
          throw new IllegalArgumentException("File '" + s + "' not found (1040).");
          if(s.equals(""))
          throw new IllegalArgumentException("File '" + s + "' not found (1040).");
          if(!isVirtual(s) && m_denyPhysicalPath)
          throw new SecurityException("Physical path is denied (1035).");
          if(isVirtual(s))
          s = m_application.getRealPath(s);
          java.io.File file = new java.io.File(s);
          FileInputStream fileinputstream = new FileInputStream(file);
          long l = file.length();
          boolean flag = false;
          int k = 0;
          byte abyte0[] = new byte[i];
          if(s1 == null)
          m_response.setContentType("application/x-msdownload");
          else
          if(s1.length() == 0)
          m_response.setContentType("application/x-msdownload");
          else
          m_response.setContentType(s1);
          m_response.setContentLength((int)l);
          m_contentDisposition = m_contentDisposition != null ? m_contentDisposition : "attachment;";
          if(s2 == null)
          m_response.setHeader("Content-Disposition", m_contentDisposition + " filename=" + getFileName(s));
          else
          if(s2.length() == 0)
          m_response.setHeader("Content-Disposition", m_contentDisposition);
          else
          m_response.setHeader("Content-Disposition", m_contentDisposition + " filename=" + s2);
          while((long)k < l)
          {
          int j = fileinputstream.read(abyte0, 0, i);
          k += j;
          m_response.getOutputStream().write(abyte0, 0, j);
          }
          fileinputstream.close();
          }

          public void downloadField(ResultSet resultset, String s, String s1, String s2)
          throws ServletException, IOException, SQLException
          {
          if(resultset == null)
          throw new IllegalArgumentException("The RecordSet cannot be null (1045).");
          if(s == null)
          throw new IllegalArgumentException("The columnName cannot be null (1050).");
          if(s.length() == 0)
          throw new IllegalArgumentException("The columnName cannot be empty (1055).");
          byte abyte0[] = resultset.getBytes(s);
          if(s1 == null)
          m_response.setContentType("application/x-msdownload");
          else
          if(s1.length() == 0)
          m_response.setContentType("application/x-msdownload");
          else
          m_response.setContentType(s1);
          m_response.setContentLength(abyte0.length);
          if(s2 == null)
          m_response.setHeader("Content-Disposition", "attachment;");
          else
          if(s2.length() == 0)
          m_response.setHeader("Content-Disposition", "attachment;");
          else
          m_response.setHeader("Content-Disposition", "attachment; filename=" + s2);
          m_response.getOutputStream().write(abyte0, 0, abyte0.length);
          }

          public void fieldToFile(ResultSet resultset, String s, String s1)
          throws ServletException, IOException, SmartUploadException, SQLException
          {
          try
          {
          if(m_application.getRealPath(s1) != null)
          s1 = m_application.getRealPath(s1);
          InputStream inputstream = resultset.getBinaryStream(s);
          FileOutputStream fileoutputstream = new FileOutputStream(s1);
          int i;
          while((i = inputstream.read()) != -1)
          fileoutputstream.write(i);
          fileoutputstream.close();
          }
          catch(Exception exception)
          {
          throw new SmartUploadException("Unable to save file from the DataBase (1020).");
          }
          }

          private String getDataFieldValue(String s, String s1)
          {
          String s2 = new String();
          String s3 = new String();
          int i = 0;
          boolean flag = false;
          boolean flag1 = false;
          boolean flag2 = false;
          s2 = s1 + "=" + '"';
          i = s.indexOf(s2);
          if(i > 0)
          {
          int j = i + s2.length();
          int k = j;
          s2 = "\"";
          int l = s.indexOf(s2, j);
          if(k > 0 && l > 0)
          s3 = s.substring(k, l);
          }
          return s3;
          }

          private String getFileExt(String s)
          {
          String s1 = new String();
          int i = 0;
          int j = 0;
          if(s == null)
          return null;
          i = s.lastIndexOf(46) + 1;
          j = s.length();
          s1 = s.substring(i, j);
          if(s.lastIndexOf(46) > 0)
          return s1;
          else
          return "";
          }

          private String getContentType(String s)
          {
          String s1 = new String();
          String s2 = new String();
          int i = 0;
          boolean flag = false;
          s1 = "Content-Type:";
          i = s.indexOf(s1) + s1.length();
          if(i != -1)
          {
          int j = s.length();
          s2 = s.substring(i, j);
          }
          return s2;
          }

          private String getTypeMIME(String s)
          {
          String s1 = new String();
          int i = 0;
          i = s.indexOf("/");
          if(i != -1)
          return s.substring(1, i);
          else
          return s;
          }

          private String getSubTypeMIME(String s)
          {
          String s1 = new String();
          int i = 0;
          boolean flag = false;
          i = s.indexOf("/") + 1;
          if(i != -1)
          {
          int j = s.length();
          return s.substring(i, j);
          } else
          {
          return s;
          }
          }

          private String getContentDisp(String s)
          {
          String s1 = new String();
          int i = 0;
          int j = 0;
          i = s.indexOf(":") + 1;
          j = s.indexOf(";");
          s1 = s.substring(i, j);
          return s1;
          }

          private void getDataSection()
          {
          boolean flag = false;
          String s = new String();
          int i = m_currentIndex;
          int j = 0;
          int k = m_boundary.length();
          m_startData = m_currentIndex;
          m_endData = 0;
          while(i < m_totalBytes)
          if(m_binArray[i] == (byte)m_boundary.charAt(j))
          {
          if(j == k - 1)
          {
          m_endData = ((i - k) + 1) - 3;
          break;
          }
          i++;
          j++;
          } else
          {
          i++;
          j = 0;
          }
          m_currentIndex = m_endData + k + 3;
          }

          private String getDataHeader()
          {
          int i = m_currentIndex;
          int j = 0;
          boolean flag = false;
          for(boolean flag1 = false; !flag1;)
          if(m_binArray[m_currentIndex] == 13 && m_binArray[m_currentIndex + 2] == 13)
          {
          flag1 = true;
          j = m_currentIndex - 1;
          m_currentIndex = m_currentIndex + 2;
          } else
          {
          m_currentIndex++;
          }

          String s = new String(m_binArray, i, (j - i) + 1);
          return s;
          }

          private String getFileName(String s)
          {
          String s1 = new String();
          String s2 = new String();
          int i = 0;
          boolean flag = false;
          boolean flag1 = false;
          boolean flag2 = false;
          i = s.lastIndexOf(47);
          if(i != -1)
          return s.substring(i + 1, s.length());
          i = s.lastIndexOf(92);
          if(i != -1)
          return s.substring(i + 1, s.length());
          else
          return s;
          }

          public void setDeniedFilesList(String s)
          throws ServletException, IOException, SQLException
          {
          String s1 = "";
          if(s != null)
          {
          String s2 = "";
          for(int i = 0; i < s.length(); i++)
          if(s.charAt(i) == ',')
          {
          if(!m_deniedFilesList.contains(s2))
          m_deniedFilesList.addElement(s2);
          s2 = "";
          } else
          {
          s2 = s2 + s.charAt(i);
          }

          if(s2 != "")
          m_deniedFilesList.addElement(s2);
          } else
          {
          m_deniedFilesList = null;
          }
          }

          public void setAllowedFilesList(String s)
          {
          String s1 = "";
          if(s != null)
          {
          String s2 = "";
          for(int i = 0; i < s.length(); i++)
          if(s.charAt(i) == ',')
          {
          if(!m_allowedFilesList.contains(s2))
          m_allowedFilesList.addElement(s2);
          s2 = "";
          } else
          {
          s2 = s2 + s.charAt(i);
          }

          if(s2 != "")
          m_allowedFilesList.addElement(s2);
          } else
          {
          m_allowedFilesList = null;
          }
          }

          public void setDenyPhysicalPath(boolean flag)
          {
          m_denyPhysicalPath = flag;
          }

          public void setForcePhysicalPath(boolean flag)
          {
          m_forcePhysicalPath = flag;
          }

          public void setContentDisposition(String s)
          {
          m_contentDisposition = s;
          }

          public void setTotalMaxFileSize(long l)
          {
          m_totalMaxFileSize = l;
          }

          public void setMaxFileSize(long l)
          {
          m_maxFileSize = l;
          }

          protected String getPhysicalPath(String s, int i)
          throws IOException
          {
          String s1 = new String();
          String s2 = new String();
          String s3 = new String();
          boolean flag = false;
          s3 = System.getProperty("file.separator");
          if(s == null)
          throw new IllegalArgumentException("There is no specified destination file (1140).");
          if(s.equals(""))
          throw new IllegalArgumentException("There is no specified destination file (1140).");
          if(s.lastIndexOf("\\") >= 0)
          {
          s1 = s.substring(0, s.lastIndexOf("\\"));
          s2 = s.substring(s.lastIndexOf("\\") + 1);
          }
          if(s.lastIndexOf("/") >= 0)
          {
          s1 = s.substring(0, s.lastIndexOf("/"));
          s2 = s.substring(s.lastIndexOf("/") + 1);
          }
          s1 = s1.length() != 0 ? s1 : "/";
          java.io.File file = new java.io.File(s1);
          if(file.exists())
          flag = true;
          if(i == 0)
          {
          if(isVirtual(s1))
          {
          s1 = m_application.getRealPath(s1);
          if(s1.endsWith(s3))
          s1 = s1 + s2;
          else
          s1 = s1 + s3 + s2;
          return s1;
          }
          if(flag)
          {
          if(m_denyPhysicalPath)
          throw new IllegalArgumentException("Physical path is denied (1125).");
          else
          return s;
          } else
          {
          throw new IllegalArgumentException("This path does not exist (1135).");
          }
          }
          if(i == 1)
          {
          if(isVirtual(s1))
          {
          s1 = m_application.getRealPath(s1);
          if(s1.endsWith(s3))
          s1 = s1 + s2;
          else
          s1 = s1 + s3 + s2;
          return s1;
          }
          if(flag)
          throw new IllegalArgumentException("The path is not a virtual path.");
          else
          throw new IllegalArgumentException("This path does not exist (1135).");
          }
          if(i == 2)
          {
          if(flag)
          if(m_denyPhysicalPath)
          throw new IllegalArgumentException("Physical path is denied (1125).");
          else
          return s;
          if(isVirtual(s1))
          throw new IllegalArgumentException("The path is not a physical path.");
          else
          throw new IllegalArgumentException("This path does not exist (1135).");
          } else
          {
          return null;
          }
          }

          public void uploadInFile(String s)
          throws IOException, SmartUploadException
          {
          int i = 0;
          int j = 0;
          boolean flag = false;
          if(s == null)
          throw new IllegalArgumentException("There is no specified destination file (1025).");
          if(s.length() == 0)
          throw new IllegalArgumentException("There is no specified destination file (1025).");
          if(!isVirtual(s) && m_denyPhysicalPath)
          throw new SecurityException("Physical path is denied (1035).");
          i = m_request.getContentLength();
          m_binArray = new byte[i];
          int k;
          for(; j < i; j += k)
          try
          {
          k = m_request.getInputStream().read(m_binArray, j, i - j);
          }
          catch(Exception exception)
          {
          throw new SmartUploadException("Unable to upload.");
          }

          if(isVirtual(s))
          s = m_application.getRealPath(s);
          try
          {
          java.io.File file = new java.io.File(s);
          FileOutputStream fileoutputstream = new FileOutputStream(file);
          fileoutputstream.write(m_binArray);
          fileoutputstream.close();
          }
          catch(Exception exception1)
          {
          throw new SmartUploadException("The Form cannot be saved in the specified file (1030).");
          }
          }

          private boolean isVirtual(String s)
          {
          if(m_application.getRealPath(s) != null)
          {
          java.io.File file = new java.io.File(m_application.getRealPath(s));
          return file.exists();
          } else
          {
          return false;
          }
          }
          }


          jspsmart的使用

          上傳

          // 新建一個SmartUpload對象
          SmartUpload su = new SmartUpload();
          // 上傳初始化
          su.initialize(pageContext);
          // 限制每個上傳文件的最大長度。
          su.setMaxFileSize(10000);
          // 限制總上傳數據的長度。
          su.setTotalMaxFileSize(20000);
          // 設定允許上傳的文件(通過擴展名限制),僅允許doc,txt文件。
          su.setAllowedFilesList("doc,txt");
          // 設定禁止上傳的文件(通過擴展名限制),禁止上傳帶有exe,bat,
          //jsp,htm,html擴展名的文件和沒有擴展名的文件。
          su.setDeniedFilesList("exe,bat,jsp,htm,html,,");
          // 上傳文件
          su.upload();
          // 將上傳文件全部保存到指定目錄
          int count = su.save("/upload");


          下載

          // 新建一個SmartUpload對象
          SmartUpload su = new SmartUpload();
          // 初始化
          su.initialize(pageContext);
          // 設定contentDisposition為null以禁止瀏覽器自動打開文件,
          //保證點擊鏈接后是下載文件。若不設定,則下載的文件擴展名為
          //doc時,瀏覽器將自動用word打開它。擴展名為pdf時,
          //瀏覽器將用acrobat打開。
          su.setContentDisposition(null);
          // 下載文件
          su.downloadFile("/upload/test.doc");

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