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<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%> <%@ taglib prefix="s" uri="/struts-tags"%> <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> <html> <head> <title></title> <meta http-equiv="pragma" content="no-cache"> <meta http-equiv="cache-control" content="no-cache"> <meta http-equiv="expires" content="0"> <meta http-equiv="keywords" content="keyword1,keyword2,keyword3"> <meta http-equiv="description" content=""> <script type="text/javascript" src="../js/swfupload/js/swfupload.js"></script> <script type="text/javascript" src="../js/swfupload/js/swfupload.queue.js"></script> <script type="text/javascript" src="../js/swfupload/js/fileprogress.js"></script> <script type="text/javascript" src="../js/swfupload/js/handlers.js"></script> <style type="text/css"> a{ color:blue; text-decoration: underline; font-size: 13px; } </style> <script type="text/javascript"> var upload; window.onload = function() { upload = new SWFUpload({ // 处理文件上传的url upload_url: "${pageContext.request.contextPath}/fileAction!uploadBatch.do", postName : "Filedata",//上传的file // 上传文件限制设置 file_size_limit : "5MB",//指定要上传的文件的最大体积，可以带单位，合法的单位有:B、KB、MB、GB，默认为KB file_types : "*.jpg;*.jpeg;*.png;*.gif;*.bmp;", //此处也可以修改成你想限制的类型，比如：*.doc;*.wpd;*.pdf file_types_description : "Word,Excel,Images Files", file_upload_limit : "200",//允许同时上传文件的个数 file_queue_limit : "0",//允许队列存在的文件数量，默认值为0，即不限制 // 事件处理设置（所有的自定义处理方法都在handler.js文件里） file_dialog_start_handler : fileDialogStart, file_queued_handler : fileQueued, file_queue_error_handler : fileQueueError, file_dialog_complete_handler : fileDialogComplete,//这里为自动上传 upload_start_handler : uploadStart, upload_progress_handler : uploadProgress, upload_error_handler : uploadError, upload_success_handler : uploadSuccess, upload_complete_handler : uploadComplete, // 按钮设置 button_image_url : "../js/swfupload/images/XPButtonNoText_61x22.png", // 按钮图标 button_placeholder_id : "spanButtonPlaceholder", button_width: 61, button_height: 22, button_text: ‘ 浏览...‘, // swf设置 flash_url : "../js/swfupload/js/swfupload.swf", custom_settings : { progressTarget : "fsUploadProgress", cancelButtonId : "btnCancel" }, removeCompleted : true,//上传完成后自动删除队列 use_query_string : true,//要传递参数，必须配置 //debug模式，可以在页面看到详细信息 debug: false }); }; //重写上传成功方法 function uploadSuccess(file, serverData) { try { var progress = new FileProgress(file, this.customSettings.progressTarget); var showMsg = "<span style=‘margin-left:100px‘></span><font color=‘green‘>---------------上传成功，</font><a style=‘text-decoration: underline;color:blue;‘ target=‘_blank‘ href=‘<%=request.getAttribute("loanDownloadPath")%>" + serverData.split(":")[1] + "‘>预 览</a> <img title=‘删除‘ onclick=‘removeFile4Add(this,\""+ serverData.split(":")[1] +"\",\""+serverData.split(":")[0]+"\")‘ style=‘cursor: pointer;‘ src=‘../images/list_remove.png‘ />"; progress.setStatus(showMsg); progress.toggleCancel(false); var fileObj = document.getElementById("filesLongString"); fileObj.value = fileObj.value + serverData + "/"; //alert(fileObj.value.length); } catch (ex) { this.debug(ex); } } //上传成功后的删除 function removeFile4Add(fileIdObj,newName,oldName) { $.messager.confirm("删除","确认删除该附件？",function(r){//jquery easyui 提示框 if(r) { $(fileIdObj).parent().parent().parent().hide();//隐藏本行 //转义括号和/ var replaceStr = oldName + ":" + newName + "\/"; replaceStr = replaceStr.replace(/\(/,"\\\("); replaceStr = replaceStr.replace(/\)/,"\\\)"); replaceStr = replaceStr.replace(/\（/,"\\\（"); replaceStr = replaceStr.replace(/\）/,"\\\）"); var reg2 = new RegExp(replaceStr,‘ig‘); var fileObj = document.getElementById("filesLongString"); var result = fileObj.value.replace(eval(reg2),""); document.getElementById("filesLongString").value = result; } }); } </script> </head> <body> <%
/*循环上传后的附件并显示*/ String files_oldname = (String)request.getAttribute("bean.files_oldname"); String files_newname = (String)request.getAttribute("bean.files_newname"); String loanDownloadPath = (String)request.getAttribute("downloadPath"); String oldNameArr[] = null, newNameArr[] = null; if(files_oldname!=null && files_newname!=null) { oldNameArr = files_oldname.split("/"); newNameArr = files_newname.split("/"); } String filesLongString = "";//组装成新增借款时附件的格式//中文名.jpg:201506231401577954808.jpg/ Map<String,String> fileMap = new TreeMap<String,String>();//有序 if(oldNameArr!=null && newNameArr!=null) { for(int i=0; i<oldNameArr.length; i++) { fileMap.put(oldNameArr[i], newNameArr[i]); filesLongString = filesLongString + oldNameArr[i] + ":" + newNameArr[i] + "/"; } } %> <% int i = 0; for(Map.Entry<String, String> entry : fileMap.entrySet()) { i++; %> <div id="fileId<%=i%>" style="padding-top:15px"> <a target="_blank" href="<%=loanDownloadPath%><%=entry.getValue()%>"><%=entry.getKey() %></a> <s:if test="#session.s_userRole==1"> <% if(entry!=null && !"".equals(entry.getValue())) { %> <img title="删除" style="cursor: pointer;" src="../images/remove.png" onclick="removeFile(‘fileId<%=i%>‘,‘<%=entry.getValue()%>‘,‘<%=entry.getKey() %>‘)"> <% } %> </s:if> </div> <% } if(fileMap.size()==0) { //out.print("没有上传附件"); } %> <table> <tr> <td colspan="4" class="sm"> <form id="filesForm" name="filesForm" method="post" action="" enctype="multipart/form-data"> <s:token /> <div class="flash" id="fsUploadProgress"></div> <br/> <div style="padding-left: 5px;"> <font color="blue">请选择需要上传的附件：</font><span id="spanButtonPlaceholder"></span> <!-- 不能去掉‘取消‘按钮，否则无法上传 --> <input id="btnCancel" type="button" value="取消" onclick="cancelQueue(upload);" disabled="disabled" style="display:none;margin-left: 2px; height: 22px; font-size: 8pt;" /> <input id="clearDivId" type="button" value="清空" onclick="clear();" style="display:none"/> <br/> (提示：选择文件后会自动上传。) </div> <input type="text" style="width: 500px; visibility: hidden;" id="filesLongString" name="filesLongString" value="<%=filesLongString%>"> </form> </td> </tr> </table> </body> </html>
//上传的文件到服务器 public void uploadBatch() { MultiPartRequestWrapper wrapper = (MultiPartRequestWrapper) ServletActionContext.getRequest(); File[] files = wrapper.getFiles("Filedata"); File savefile = null; String realpath = ServletActionContext.getServletContext().getRealPath("/upload/");//上传路径 int randomNum = (int) (Math.random() * 10000);// 生成一个10000以内的随机数 SimpleDateFormat sdf = new SimpleDateFormat("yyyyMMddHHmmssSSS"); String fileNameStr = wrapper.getFileNames("Filedata")[0];//原名称 String type = fileNameStr.substring(fileNameStr.lastIndexOf("."), fileNameStr.length());// 获取文件类型 String newFileName = sdf.format(new Date()) + randomNum + type;// 当前时间作为上传后的文件名 savefile = new File(new File(realpath), newFileName); savefile.setWritable(true, false);//设置可写，针对linux系统 if (!savefile.getParentFile().exists()) { savefile.getParentFile().mkdirs(); } try { FileUtils.copyFile(files[0], savefile); } catch (Exception e) { logger.error("上传excel异常：", e); } try { HttpServletResponse response = ServletActionContext.getResponse(); response.setContentType("text/html; charset=UTF-8"); response.setContentType("application/json;charset=UTF-8"); response.setHeader("Pragma", "No-cache"); response.setHeader("Cache-Control", "no-cache"); response.setDateHeader("Expires", 0); PrintWriter writer = response.getWriter(); writer.print(fileNameStr + ":" + newFileName);//数据导入成功后，返回文件原名、现名到前台 writer.flush(); writer.close(); } catch (IOException e) { logger.error(e); } }
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原文地址：http://www.cnblogs.com/yushouling/p/4651106.html
