[jspSmartUpload]------------>jspSmartUpload上传中文文件名 乱码问题

用jspSmartUpload做文件上传下载，该组件默认是不是utf-8编码，对中文支持不好，当文件名或参数有中文时候就会出现乱码。在google一番后找到一种目前比较好的解决方案

修改源码(听说是侵权，但....)

找到源码，并且参考网上的讲法，进行修改，发现可以解决

1）当页面上传有参数时，中文会乱码，解决页面上中文参数乱码方法：
修改类SmartUpload()中的upload()方法
(可以按照关键字   application/x-macbinary  定位到)

    public void upload()
        throws SmartUploadException, IOException, ServletException
    {
        int totalRead = 0;
        int readBytes = 0;
        long totalFileSize = 0L;
        boolean found = false;
        String dataHeader = new String();
        String fieldName = new String();
        String fileName = new String();
        String fileExt = new String();
        String filePathName = new String();
        String contentType = new String();
        String contentDisp = new String();
        String typeMIME = new String();
        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(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(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
            {

//    源码为：
//  String value = new String(m_binArray, m_startData, (m_endData - m_startData) + 1);

//             在原来的基础上定义字符编码utf-8            	
 String value = new String(m_binArray, m_startData, (m_endData - m_startData) + 1, "UTF-8");
                m_formRequest.putParameter(fieldName, value);
            }
            if((char)m_binArray[m_currentIndex + 1] == '-')
                break;
            m_currentIndex = m_currentIndex + 2;
        } while(true);
    }

2) 当上传时文件名为中文时，解决中文乱码方法
修改类SmartUpload()中的getDataHeader()方法

    private String getDataHeader()
    {
        int start = m_currentIndex;
        int end = 0;
        int len = 0;
        boolean found = false;
        while(!found) 
            if(m_binArray[m_currentIndex] == 13 && m_binArray[m_currentIndex + 2] == 13)
            {
                found = true;
                end = m_currentIndex - 1;
                m_currentIndex = m_currentIndex + 2;
            } else
            {
                m_currentIndex++;
            }
        String dataHeader = null;
/**
* 	源码为：
*   dataHeader = new String(m_binArray, start, (end - start) + 1);
*/        
		try {
//			指定编码方式为utf-8
			dataHeader = new String(m_binArray, start, (end - start) + 1,"utf-8");
		} catch (UnsupportedEncodingException e) 
		{
			e.printStackTrace();
		}
        return dataHeader;
    }

目前上面的方法可以满足自己在项目中的需求，有兴趣的朋友可以自己下载自己看看源码，或者直接用我改好的先用用

评论

3 楼 刘焕杰 2013-08-03  

楼主，为啥放进去后，我下载的中文文件名还是乱码呢?

2 楼 yxyysu 2012-05-21  

下载之后使用了，没有解决上传时中文名字乱码问题，请博主指导。

1 楼 liutang123 2012-04-10  

楼主,啥也不说了~~~
那啥不言谢``