struts1 多个文件上传和下载，jquery

 

 struts1 多个文件上传和下载，jquery

 

 

	<html:form styleId="myform1" action="/FwrzyshList.do" method="post"
		enctype="multipart/form-data">



<table id="table6" cellpadding="0" cellspacing="0" border="1"
			width="90%" align="center"
			onkeydown="if(event.keyCode==13)event.keyCode=9">
			<tr>
				<td colspan="3" class="tab">
					<table class="tabs" cellpadding="0" cellspacing="0">
						<tr>
							<td class=tab_sf></td>
							<td class=tab_f>
								附件
							</td>
							<td class=tab_ef></td>
							<td class=tab_ef align="right">
								<input type="button" class="button" onclick="addTable6()"
									value="增加">
							</td>
						</tr>
					</table>
				</td>
			</tr>

			<tr>
				<th width="40%">
					文件名称
				</th>
				<th width="30%">
					上传时间
				</th>
				<th>
					操作
				</th>
			</tr>


			<logic:notEmpty name="fwrzxysPersistentForm"
				property="dtywFwrzxysFjPOList">
				<logic:iterate id="data" name="fwrzxysPersistentForm"
					indexId="index" property="dtywFwrzxysFjPOList">
					<tr onMouseOver="this.style.backgroundColor='#FFCCCC'"
					onMouseOut="this.style.backgroundColor=''" >
						<td>
							<bean:write property="wjmc" name="data" />
							<!-- 文件名称 -->
						</td>
						<td>
							<bean:write property="mrut" name="data" />
							<!--     上传时间          -->
						</td>
						<td>
							<a
								onclick="deleteTable2(this,'<bean:write property="ysbh" name="data" />','<bean:write property="xh" name="data" />','t6')"
								style="cursor: hand">删除</a>
						</td>
					</tr>
				</logic:iterate>
			</logic:notEmpty>

			<tr id='tr6'>
				<td colspan='2' align='center'>
					<input type='file' name='file' size='25' />
				</td>
				<td>
					<a onclick="deleteTable0(this)" style="cursor: hand">删除</a>
				</td>
			</tr>

		</table>

</html:form>

 

 

 

 

var $tr6;
$(document).ready(function() {

$tr6 = $("#tr6").remove();
});

function addTable6() {
         $tr6.clone().appendTo("#table6");
}



function toSaveYsd() {
	if (!checkNull()) {
		return;
	}
	
	$("#table6 input[type='file']").each(function() {
		III++;
		this.name="file"+III;
	});
	var myform=$("#myform1").serialize();
	var params = decodeURIComponent(myform,true); 	
	
	document.forms[0].action = "/fwrzxysPersist.do?method=save&"+params;
	document.forms[0].submit();
}

 

 

var $tr6;
$(document).ready(function() {

       $tr6 = $("#tr6").remove();
});


function addTable6() {
	
	$tr6.clone().appendTo("#table6");
}


function toSave() {
		
	$("#table6 input[type='file']").each(function() {//一定要有这一步，否则只能上传一个文件
		III++;
		this.name="file"+III;
	});
	//var myform=$("#myform1").serialize();
	//var params = decodeURIComponent(myform,true); 	
	
	document.forms[0].action = "/aa.do?method=save&"+params;
	document.forms[0].submit();
}

 

 

 

 

 Action 后面代码：

 

Hashtable files = fwrzxysPersistentForm
					.getMultipartRequestHandler().getFileElements();
			
			for (Enumeration e = files.keys(); e.hasMoreElements();) {
				FormFile file = (FormFile) files.get((String) e.nextElement());
				if (file != null && file.getFileSize() > 0) {

					String fileName = file.getFileName();
					InputStream is = file.getInputStream();
					String patch = ((FwrdwbaPath) Config.getBean("fwrbafj"))
							.getFilePath();
					File f = new File(patch);
					if (!f.exists()) {
						f.mkdirs();
					}
					SimpleDateFormat sf = new SimpleDateFormat(
							"yyyy-MM-dd-HH-mm-ss");
					Date date = new Date();
					String name = requestContext.getCzydm() + sf.format(date)
							+ "" + fileName;
					File fil = new File(patch, name);
					FileOutputStream fos = new FileOutputStream(fil);
					byte[] b = new byte[1024];
					int real = 0;
					real = is.read(b);
					while (real > 0) {
						fos.write(b, 0, real);
						real = is.read(b);
					}
					fos.close();
					is.close();
					file.destroy();
					iv++;
					DtywFwrzxysFjPO dtywFwrzxysFjPO = new DtywFwrzxysFjPO();
					dtywFwrzxysFjPO.setYsbh(ysbh);
					dtywFwrzxysFjPO.setXh(iv + "");
					dtywFwrzxysFjPO.setScwjlj(name);
					dtywFwrzxysFjPO.setWjmc(fileName);
					dtywFwrzxysFjPO.setJgdm(requestContext.getJgdm());
					dtywFwrzxysFjPO.setXxly(xxly);
					new DtywFwrzxysFjDAO().add(dtywFwrzxysFjPO);
				}
			}

 

－－－－－－－－－－－以上为上传， 下面为下载文件－－－－－－－－－－－－－－－－－－－－－－－－－

 

javascript

 

function download(ysbh, xh, lx) {
	window.open("/aa.do?method=downLoad&ysbh=" + ysbh + "&xh=" + xh
			+ "&lx=" + lx);
}

  

 

 

Action

 

 

/**
	 * 下载附件的上传文件
	 * 
	 * @return
	 */
	public ActionForward downLoad(ActionMapping mapping, ActionForm form,
			HttpServletRequest request, HttpServletResponse response)
			throws java.net.SocketException {
		String ysbh = request.getParameter("ysbh");
		String xh = request.getParameter("xh");
		String lx = request.getParameter("lx");
		BufferedInputStream bis = null;
		BufferedOutputStream bos = null;
		OutputStream fos = null;
		InputStream fis = null;
		String filepath = null;
		String fileName = "";
		try {
			if (lx.equalsIgnoreCase("fj")) {// 文件下载
				FjPO PO = new FjDAO().get(
						ysbh, xh);
				fileName = PO.getWjmc();
				filepath = ((BaPath) Config.getBean("bafj"))
						.getFilePath()
						+ File.separator + PO.getScwjlj().trim();

			}			File uploadFile = new File(filepath);
			fis = new FileInputStream(uploadFile);
			bis = new BufferedInputStream(fis);
			fos = response.getOutputStream();
			bos = new BufferedOutputStream(fos);
			// 弹出下载对话框时防止乱码
			response.setHeader("Content-disposition", "attachment;filename="
					+ URLEncoder.encode(fileName, "utf-8"));
			int bytesRead = 0;
			// 用输入流进行先读，然后用输出流去写，使用的是缓冲输入输出流
			byte[] buffer = new byte[8192];
			while ((bytesRead = bis.read(buffer, 0, 8192)) != -1) {
				bos.write(buffer, 0, bytesRead);
			}
			bos.flush();
			fis.close();
			bis.close();
			fos.close();
			bos.close();
		} catch (java.net.SocketException e1) {
			logger.error("文件下载失败" + e1);
			e1.printStackTrace();
		} catch (Exception e) {
			logger.error("文件下载失败" + e);
			e.printStackTrace();
		}
		return null;
	}