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      BlogJava :: 首頁 :: 新隨筆 :: 聯(lián)系 :: 聚合  :: 管理

    JspSmart之upload組件源碼及使用

    Posted on 2006-12-17 16:25 semovy 閱讀(444) 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(shù)據(jù)的長度。
    su.setTotalMaxFileSize(20000);
    // 設(shè)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(shè)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(shè)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(shè)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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