java SmartUpload类问题 没有分了就这点了
我在网上看了很多修改SmartUpload类就可以下载中文名字的文件，但是我在反编译SmartUpload类后然后修改如下：
/*
*由 ReJava v1.4 反编译
* Copyright 2005-2007 Apull
*2007-9-25
*源文件：SmartUpload.java
*/
package com.jspsmart.upload;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.util.Vector;
import javax.servlet.ServletConfig;
import javax.servlet.ServletContext;
import javax.servlet.ServletException;
import javax.servlet.ServletRequest;
import javax.servlet.ServletResponse;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;
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 javax.servlet.http.HttpServletRequest m_request;
protected javax.servlet.http.HttpServletResponse m_response;
protected javax.servlet.ServletContext m_application;
private int m_totalBytes;
private int m_currentIndex;
private int m_startData;
private int m_endData;
private java.lang.String m_boundary;
private long m_totalMaxFileSize;
private long m_maxFileSize;
private java.util.Vector m_deniedFilesList;
private java.util.Vector m_allowedFilesList;
private boolean m_denyPhysicalPath;
private boolean m_forcePhysicalPath;
private java.lang.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 com.jspsmart.upload.Files m_files;
private com.jspsmart.upload.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();
}
/**
* @deprecated Method init is deprecated
*/
public final void init(javax.servlet.ServletConfig config)
throws javax.servlet.ServletException
{
m_application = config.getServletContext();
}
/**
* @deprecated Method service is deprecated
*/
public void service(javax.servlet.http.HttpServletRequest request, javax.servlet.http.HttpServletResponse response)
throws java.io.IOException, javax.servlet.ServletException
{
m_request = request;
m_response = response;
}
public final void initialize(javax.servlet.ServletConfig config, javax.servlet.http.HttpServletRequest request, javax.servlet.http.HttpServletResponse response)
throws javax.servlet.ServletException
{
m_application = config.getServletContext();
m_request = request;
m_response = response;
}
public final void initialize(javax.servlet.jsp.PageContext pageContext)
throws javax.servlet.ServletException
{
m_application = pageContext.getServletContext();
m_request = (javax.servlet.http.HttpServletRequest)pageContext.getRequest();
m_response = (javax.servlet.http.HttpServletResponse)pageContext.getResponse();
}
/**
* @deprecated Method initialize is deprecated
*/
public final void initialize(javax.servlet.ServletContext application, javax.servlet.http.HttpSession session, javax.servlet.http.HttpServletRequest request, javax.servlet.http.HttpServletResponse response, javax.servlet.jsp.JspWriter out)
throws javax.servlet.ServletException
{
m_application = application;
m_request = request;
m_response = response;
}
public void upload()
throws com.jspsmart.upload.SmartUploadException, java.io.IOException, javax.servlet.ServletException
{
int totalRead = 0;
int readBytes = 0;
long totalFileSize = 0L;
boolean found = false;
java.lang.String dataHeader = new String();
java.lang.String fieldName = new String();
java.lang.String fileName = new String();
java.lang.String fileExt = new String();
java.lang.String filePathName = new String();
java.lang.String contentType = new String();
java.lang.String contentDisp = new String();
java.lang.String typeMIME = new String();
java.lang.String subTypeMIME = new String();
boolean isFile = false;
m_totalBytes = m_request.getContentLength();
m_binArray = new byte[m_totalBytes];
for (; totalRead < m_totalBytes; totalRead += readBytes)
try
{
m_request.getInputStream();
readBytes = m_request.getInputStream().read(m_binArray, totalRead, m_totalBytes - totalRead);
}
catch (java.lang.Exception e)
{
throw new SmartUploadException( "Unable to upload. ");
}
for (; !found && m_currentIndex < m_totalBytes; m_currentIndex++)
if (m_binArray[m_currentIndex] == 13)
found = true;
else
m_boundary = m_boundary + (char)m_binArray[m_currentIndex];
if (m_currentIndex == 1)
return;
m_currentIndex++;
do
{
if (m_currentIndex > = m_totalBytes)
break;
dataHeader = getDataHeader();
m_currentIndex = m_currentIndex + 2;
isFile = dataHeader.indexOf( "filename ") > 0;
fieldName = getDataFieldValue(dataHeader, "name ");
if (isFile)
{
filePathName = getDataFieldValue(dataHeader, "filename ");
fileName = getFileName(filePathName);
fileExt = getFileExt(fileName);
contentType = getContentType(dataHeader);
contentDisp = getContentDisp(dataHeader);
typeMIME = getTypeMIME(contentType);
subTypeMIME = getSubTypeMIME(contentType);
}
getDataSection();
if (isFile && fileName.length() > 0)
{
if (m_deniedFilesList.contains(fileExt))
throw new SecurityException( "The extension of the file is denied to be uploaded (1015). ");
if (!m_allowedFilesList.isEmpty() && !m_allowedFilesList.contains(fileExt))
throw new SecurityException( "The extension of the file is not allowed to be uploaded (1010). ");
if (m_maxFileSize > (long)0 && (long)((m_endData - m_startData) + 1) > m_maxFileSize)
throw new SecurityException(java.lang.String.valueOf((new StringBuffer( "Size exceeded for this file : ")).append(fileName).append( " (1105). ")));
totalFileSize += (m_endData - m_startData) + 1;
if (m_totalMaxFileSize > (long)0 && totalFileSize > m_totalMaxFileSize)
throw new SecurityException( "Total File Size exceeded (1110). ");
}
if (isFile)
{
com.jspsmart.upload.File newFile = new com.jspsmart.upload.File();
newFile.setParent(this);
newFile.setFieldName(fieldName);
newFile.setFileName(fileName);
newFile.setFileExt(fileExt);
newFile.setFilePathName(filePathName);
newFile.setIsMissing(filePathName.length() == 0);
newFile.setContentType(contentType);
newFile.setContentDisp(contentDisp);
newFile.setTypeMIME(typeMIME);
newFile.setSubTypeMIME(subTypeMIME);
if (contentType.indexOf( "application/x-macbinary ") > 0)
m_startData = m_startData + 128;
newFile.setSize((m_endData - m_startData) + 1);
newFile.setStartData(m_startData);
newFile.setEndData(m_endData);
m_files.addFile(newFile);
} else
{
java.lang.String value = new String(m_binArray, m_startData, (m_endData - m_startData) + 1);
m_formRequest.putParameter(fieldName, value);
}
if ((char)m_binArray[m_currentIndex + 1] == '- ')
break;
m_currentIndex = m_currentIndex + 2;
} while (true);
}
[解决办法]
byte abyte0[] = new byte;
这样都可以吗?
[解决办法]
package com.util;
import java.io.FileInputStream;
import java.io.IOException;
import javax.servlet.ServletConfig;
import javax.servlet.ServletContext;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.jsp.PageContext;
public class DownLoadFile {
protected byte m_binArray[];
protected HttpServletRequest m_request;
protected HttpServletResponse m_response;
protected ServletContext m_application;
private String m_contentDisposition = null;
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 void downloadFile(String s) throws ServletException, IOException {
//缓存区大小6144字节 6m
downloadFile(s, 6144);
}
public void downloadFile(String s, int i) throws ServletException,
IOException {
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))
s = m_application.getRealPath(s);
else
return ;
java.io.File file = new java.io.File(s);
FileInputStream fileinputstream = new FileInputStream(file);
long l = file.length();
if(l <1024)//1k
i=(int)l;
int k = 0;
byte abyte0[] = new byte[i];
m_response.setContentType( "application/x-msdownload ");
m_response.setContentLength((int) l);
m_contentDisposition = m_contentDisposition != null ? m_contentDisposition
: "attachment; ";
m_response.setHeader( "Content-Disposition ", m_contentDisposition
+ " filename= " + toUtf8String(getFileName(s)));
while ((long) k < l) {
int j = fileinputstream.read(abyte0, 0, i);
k += j;
m_response.getOutputStream().write(abyte0, 0, j);
}
fileinputstream.close();
}
private String getFileName(String s) {
int i = 0;
i = s.lastIndexOf( '/ ');
if (i != -1) {
return s.substring(i + 1, s.length());
}
i = s.lastIndexOf( '\\ ');
if (i != -1) {
return s.substring(i + 1, s.length());
} else {
return s;
}
}
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;
}
}
/**
* 将文件名中的汉字转为UTF8编码的串,以便下载时能正确显示另存的文件名.
* @param s 原文件名
* @return 重新编码后的文件名
*/
public static String toUtf8String(String s) {
StringBuffer sb = new StringBuffer();
for (int i = 0; i < s.length(); i++) {
char c = s.charAt(i);
if (c > = 0 && c <= 255) {
sb.append(c);
} else {
byte[] b;
try {
b = Character.toString(c).getBytes( "utf-8 ");
} catch (Exception ex) {
System.out.println(ex);
b = new byte[0];
}
for (int j = 0; j < b.length; j++) {
int k = b[j];
if (k < 0)
k += 256;
sb.append( "% " + Integer.toHexString(k).toUpperCase());
}
}
}
return sb.toString();
}
}
去年写的你查考下吧我记得中文名没问题,另外这个不好用,推荐用apache的io
com.util.DownLoadFile dlf = new com.util.DownLoadFile();
dlf.initialize(getServletConfig(),request,response);
dlf.downloadFile(文件);
[解决办法]
java技术交流,欢迎加入40652189,深入学习java的**群，探讨新技术
