java编写的b/s结构的文件上传程序

				import javax.servlet.*;
				import javax.servlet.http.*;
				import javax.servlet.jsp.*;
				import javax.servlet.jsp.tagext.*;
				import java.io.PrintWriter;
				import java.io.IOException;
				import java.io.InputStream;
				import java.io.ObjectInputStream;
				import java.util.Vector;
				import org.apache.jasper.runtime.*;
				import java.beans.*;
				import org.apache.jasper.JasperException;
				import java.io.ByteArrayOutputStream;
				import org.apache.jasper.compiler.ibmtsx.*;
				import org.apache.jasper.compiler.ibmdb.*;
				import java.sql.SQLException;
				
				
				public class jsp1_0002ejsp_jsp extends HttpJspBase {
				
				    // begin [file="D:\\work\\fileupload\\defaultroot\\jsp1.jsp";from=(1,0);to=(1,75)]
				    // end
				
				    static {
				    }
				    public jsp1_0002ejsp_jsp( ) {
				    }
				
				    private static boolean _jspx_inited = false;
				
				    private static boolean checkedAttributeIgnoreException = false;
				    private static boolean throwException = true;
				    
				    public final void _jspx_init() throws JasperException {
				    }
				
				    public void _jspService(HttpServletRequest request, HttpServletResponse  response)
				        throws IOException, ServletException {
				
				        JspFactory _jspxFactory = null;
				        PageContext pageContext = null;
				        HttpSession session = null;
				        ServletContext application = null;
				        ServletConfig config = null;
				        JspWriter out = null;
				        Object page = this;
				        String  _value = null;
				        setBooleanIgnoreException();
				        try {
				
				            if (_jspx_inited == false) {
				                _jspx_init();
				                _jspx_inited = true;
				            }
				            _jspxFactory = JspFactory.getDefaultFactory();
				            response.setContentType("text/html;charset=gb2312");
				            pageContext = _jspxFactory.getPageContext(this, request, response,							"", true, 8192, true);
				
				            application = pageContext.getServletContext();
				            config = pageContext.getServletConfig();
				            session = pageContext.getSession();
				            out = pageContext.getOut();
				
				            // HTML // begin [file="D:\\work\\fileupload\\defaultroot\\jsp1.jsp";from=(0,49);to=(1,0)]
				                out.print("\r\n");				            // end
				            // begin [file="D:\\work\\fileupload\\defaultroot\\jsp1.jsp";from=(1,0);to=(1,75)]
				                fileupload.FileUploadBean TheBean = null;
				                boolean _jspx_specialTheBean  = false;
				                 synchronized (pageContext) {
				                    TheBean= (fileupload.FileUploadBean)
				                    pageContext.getAttribute("TheBean",PageContext.PAGE_SCOPE);
				                    if ( TheBean == null ) {
				                        _jspx_specialTheBean = true;
				                        try {
				                            TheBean = (fileupload.FileUploadBean) Beans.instantiate(getClassLoader(), "fileupload.FileUploadBean");
				                        } catch (Exception exc) {
				                             throw new ServletException (" Cannot create bean of class "+"fileupload.FileUploadBean");
				                        }
				                        pageContext.setAttribute("TheBean", TheBean, PageContext.PAGE_SCOPE);
				                    }
				                 } 
				                if(_jspx_specialTheBean == true) {
				            // end
				            // begin [file="D:\\work\\fileupload\\defaultroot\\jsp1.jsp";from=(1,0);to=(1,75)]
				                }
				            // end
				            // HTML // begin [file="D:\\work\\fileupload\\defaultroot\\jsp1.jsp";from=(1,75);to=(3,0)]
				                out.print("\r\n\r\n");				            // end
				            // begin [file="D:\\work\\fileupload\\defaultroot\\jsp1.jsp";from=(3,2);to=(10,0)]
				                
				                TheBean.doUpload(request);
				                out.println("Filename:" + TheBean.getFilename());
				                out.println("内容类型:" + TheBean.getContentType());
				                out.println("作者:" + TheBean.getFieldValue("author"));
				                out.println("公司:" + TheBean.getFieldValue("aompany"));
				                out.println("说明:" + TheBean.getFieldValue("comment"));
				            // end
				            // HTML // begin [file="D:\\work\\fileupload\\defaultroot\\jsp1.jsp";from=(10,2);to=(11,0)]
				                out.print("\r\n");				            // end
				
				        } catch (Exception ex) {
				            if (out.getBufferSize() != 0)
				                out.clearBuffer();
				            pageContext.handlePageException(ex);
				        } catch ( Throwable t) {
				            if (out.getBufferSize() != 0)
				                out.clearBuffer();
				            pageContext.handlePageException(new Exception(t.getMessage()));
				        } finally {
				            out.flush();
				            _jspxFactory.releasePageContext(pageContext);
				        }
				    }
				    private void setBooleanIgnoreException() {
				        if (checkedAttributeIgnoreException) return;
				        
				        checkedAttributeIgnoreException = true;
				        String initParamIgnoreException =(String)(getServletConfig().getInitParameter("jsp.repeatTag.ignoreException"));
				        if ((initParamIgnoreException != null) && (initParamIgnoreException.toLowerCase().equals("true"))){ 
				            throwException = false;
				        }
				    }
				}