关于fileupload的文件上传
package com.insigma.siis.local.pagemodel.tablesmanage; import java.io.BufferedInputStream; import java.io.BufferedOutputStream; import java.io.File; import java.io.FileInputStream; import java.io.IOException; import java.io.InputStream; import java.io.OutputStream; import java.io.PrintWriter; import java.net.URLEncoder; import java.util.Iterator; import java.util.List; import java.util.Map; import org.hibernate.Query; import javax.servlet.RequestDispatcher; import javax.servlet.ServletException; import javax.servlet.http.HttpServlet; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; import javax.servlet.jsp.PageContext; import javax.swing.JOptionPane; import net.sf.json.JSONObject; import org.apache.commons.fileupload.FileItem; import org.apache.commons.fileupload.FileUploadException; import org.apache.commons.fileupload.FileUploadBase.FileSizeLimitExceededException; import org.apache.commons.fileupload.FileUploadBase.SizeLimitExceededException; import org.apache.commons.fileupload.disk.DiskFileItemFactory; import org.apache.commons.fileupload.servlet.ServletFileUpload; import org.apache.jasper.tagplugins.jstl.core.Out; import org.apache.log4j.Logger; import com.insigma.odin.framework.AppException; import com.insigma.odin.framework.persistence.HBSession; import com.insigma.odin.framework.persistence.HBUtil; import com.insigma.odin.framework.sys.file.CommonsFileUploadImp; import com.insigma.odin.framework.sys.file.FileUpload; import com.insigma.odin.framework.sys.file.FileUploadAccess; import com.insigma.odin.taglib.html.SysParamTag; import com.insigma.siis.local.business.entity.DataUpload; import com.insigma.siis.local.pagemodel.fileupload.DataUploadPageModel; /** * 文件导入通用Servlet类 * @author jinwei * @date 2009-12-15 */ public class FileUploadServlet extends HttpServlet { /** * Logger for this class */ private static final Logger logger = Logger.getLogger(FileUploadServlet.class); private String defaultBusinessName = "com.insigma.odin.framework.sys.file.DefaultFileUploadAccess"; public FileUploadServlet() { super(); } public void destroy() { super.destroy(); } public void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { doPost(request,response); } public void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { String method = request.getParameter("method"); if(method.equals("impFileAndProcess")){ impFileAndProcess(request,response); } if(method.equals("dataUpload")){ System.out.println("zheli"); dataUpload(request,response); } } public void init() throws ServletException { } /** * 导入文件，并做相关业务处理(不对Txt、Excel自动进行解析处理) * @param request * @param response * @throws IOException */ public void impFileAndProcess(HttpServletRequest request, HttpServletResponse response) throws IOException{ response.setContentType("text/html"); response.setCharacterEncoding("GBK"); PrintWriter out = response.getWriter(); try { Map<?, ?> map; FileUpload upload = new CommonsFileUploadImp();//FileUpload upload = new FileUploadImp(); String path = getServletContext().getRealPath("/"); map = upload.upload(request,response,this.getServletConfig(),Integer.MAX_VALUE,path); Boolean bool = (Boolean) map.get("result"); List<?> list = (List<?>) map.get("filePath"); List<?> fileNames = (List<?>) map.get("fileName"); String className = (String)map.get("businessClass"); String fileid = (String)map.get("fileid"); if(className==null || className.equals("")){ className = defaultBusinessName; } /********调用业务处理类***********/ FileUploadAccess fileAccess = (FileUploadAccess)Class.forName(className).newInstance(); Object rtn = fileAccess.accessAfterFileUpload((String)fileNames.get(0)+"_"+fileid, (String)list.get(0),map); if(bool.booleanValue()){ out.println("<script>parent.info(1,'"+JSONObject.fromObject(rtn).toString()+"kjdfhfhfhhf"+"');</script>"); }else{ out.println("<script>parent.parent.odin.info('业务操作失败！网络发生异常导致文件无法正常传输。');parent.info(0);</script>"); } } catch (AppException e) { logger.info("业务处理发生异常！"+e.toString()); out.println("<script>parent.parent.odin.info('"+e.toString()+"');parent.info(0);</script>"); e.printStackTrace(); } catch (Exception e) { logger.info("调用业务类异常！"+e.toString()); out.println("<script>parent.parent.odin.info('"+e.toString()+"');parent.info(0);</script>"); e.printStackTrace(); } out.flush(); out.close(); } public String getDefaultBusinessName() { return defaultBusinessName; } public void setDefaultBusinessName(String defaultBusinessName) { this.defaultBusinessName = defaultBusinessName; } /** * @author leon * 资料上传的方法 * @throws IOException * @throws FileUploadException */ public void dataUpload(HttpServletRequest request, HttpServletResponse response) throws IOException{ String scategory = request.getParameter("category"); int category = Integer.parseInt(scategory); String shcode = request.getParameter("hcode"); int hcode = Integer.parseInt(shcode); response.setContentType("text/html;charset=GBK"); String[] allowedExt = new String[] { "jpg", "jpeg", "gif", "xls","doc", "docx", "mp3", "wma", "m4a" }; System.out.println("开始上传"); PrintWriter out = response.getWriter(); DiskFileItemFactory factory = new DiskFileItemFactory(); //String path = getServletContext().getRealPath("/"); String path = this.getServletConfig().getServletContext().getRealPath("/"); String temp = getServletContext().getRealPath("/") + "upload/temp"; //文件上传临时存储位置 factory.setRepository(new File(temp)); ServletFileUpload upload = new ServletFileUpload(factory); upload.setFileSizeMax(10*1024*1024); List<FileItem> items = null; try { items = upload.parseRequest(request); } catch (FileUploadException e1) { if(e1 instanceof FileSizeLimitExceededException){ out.print("<script>alert('文件上传尺寸超过指定大小');</script>"); return; } e1.printStackTrace(); } for(FileItem fi:items){ if(!fi.isFormField()){ try { System.out.println("上传文件的大小:" + fi.getSize()); System.out.println("上传文件的类型:" + fi.getContentType()); // item.getName()返回上传文件在客户端的完整路径名称 //得到文件后缀名 String name = fi.getName(); HBSession hb = HBUtil.getHBSession(); String sql = "select * from net_ae22 where name='"+name+"' and category="+category+"and flag=1 and fid="+hcode; System.out.println(sql); List list = hb.createSQLQuery(sql).list(); if(list.size() > 0){ out.print("<script>alert('该文件已经上传，请确认。确认要上传，请修改文件名');" + "</script>"); return; } String type= null; if(name.length() > 0 && name != null){ int dot = name.lastIndexOf("."); if((dot > -1)&&(dot < name.length()-1)){ type=name.substring(dot+1); } } System.out.println("上传文件的名称:" + type); int allowFlag = 0; for(;allowFlag < allowedExt.length; allowFlag++){ if(allowedExt[allowFlag].toLowerCase().equals(type.toLowerCase())){ break; } } if(allowFlag == allowedExt.length){ out.print("<script>alert('请上传doc,xls,jpg文件');</script>"); /*for (allowFlag = 0; allowFlag < allowedExt.length; allowFlag++) out.println("*." + allowedExt[allowFlag].toLowerCase() + " "); */ return; } fi.write(new File(path+"/download",fi.getName())); DataUpload du = new DataUpload(); du.setId( System.currentTimeMillis()); du.setName(fi.getName()); du.setType(type); du.setPath(path+"download\\" + fi.getName()); du.setFlag(1); du.setFid(hcode); du.setCategory(category); System.out.println(du.getPath()); hb.save(du); hb.flush(); out.print("<script>alert('恭喜你，上传成功');" + "parent.parent.location.reload();" + "</script>"); //request.getRequestDispatcher("DataUpload.jsp"); System.out.println("上传结束"); } catch (Exception e) { e.printStackTrace(); System.out.println("上传出错了"); } } } } /** * * * */ public HttpServletResponse download(String path,HttpServletRequest request, HttpServletResponse response) { try { // path是指欲下载的文件的路径。 File file = new File(request.getRealPath("/")+"/"+path); // 取得文件名。 String filename = file.getName(); // 取得文件的后缀名。 //String ext = filename.substring(filename.lastIndexOf(".") + 1).toUpperCase(); // 以流的形式下载文件。 InputStream fis = new BufferedInputStream(new FileInputStream(file)); byte[] buffer = new byte[fis.available()]; fis.read(buffer); fis.close(); // 清空response response.reset(); // 设置response的Header response.addHeader("Content-Disposition", "attachment;filename=" + new String(filename.getBytes("utf-8"),"ISO-8859-1")); response.addHeader("Content-Length", "" + file.length()); OutputStream toClient = new BufferedOutputStream(response.getOutputStream()); response.setContentType("application/octet-stream"); toClient.write(buffer); toClient.flush(); toClient.close(); } catch (IOException ex) { ex.printStackTrace(); } return response; } }
最近在做几个上传文件的功能，用了apache的fileupload组件。
