上传的话有很多种方式吧，显示 有的是用的flash， 有的是用 画中画的标签引入 视频的 页面 </p> <p>jsp 上传文件-----------------------------------------------------</p> <p> <form id="f1" action="servlet/Import_Servlet" method="post" enctype="multipart/form-data"></p> <p> <input type="file" name="file"></p> <p> <input type="submit" value="提交" class=ui-button></p> <p> </form></p> <p>servlet 接收端 -----------------------------------------------------------------------------</p> <p> String dtype = "";</p> <p> String ip ="";</p> <p> String port = "";</p> <p> String dname ="";</p> <p> String uname ="";</p> <p> String pwd ="";</p> <p> String tname = "";</p> <p> String exception = "文件上传成功";</p> <p> String fileAddress="";</p> <p> DiskFileItemFactory factory = new DiskFileItemFactory();</p> <p> factory.setSizeThreshold(2 * 1024); // 设置内存中允许存储的字节数</p> <p> factory.setRepository(factory.getRepository());</p> <p> ServletFileUpload upload = new ServletFileUpload(factory);</p> <p> upload.setHeaderEncoding("utf-8");</p> <p> int size = 2 * 1024 * 1024; // 定义允许上传文件的上限</p> <p> List formlists = null;</p> <p> try {</p> <p> formlists = upload.parseRequest(request); // 获取上传文件集合</p> <p> } catch (FileUploadException e) {</p> <p> System.out.println(e.getMessage());</p> <p> exception="获取表单失败";</p> <p> request.setAttribute("exception", exception); // 将提示信息保存在request对象中</p> <p> RequestDispatcher requestDispatcher = request.getRequestDispatcher("/exception.jsp"); // 设置相应返回地址</p> <p> requestDispatcher.forward(request, response);</p> <p> return ;</p> <p> }</p> <p> Iterator iter = formlists.iterator(); // 获取上传文件迭代器</p> <p> while (iter.hasNext()) {</p> <p> FileItem formitem = (FileItem) iter.next();</p> <p> if (!formitem.isFormField()) { // 是文件</p> <p> String name = formitem.getName(); // 获取上传文件名称</p> <p> if (!name.endsWith(".xls")) { // 如果用户上传文件不是mp3文件</p> <p> exception = "上传的文件格式不正确";</p> <p> request.setAttribute("exception", exception); // 将提示信息保存在request对象中</p> <p> RequestDispatcher requestDispatcher = request.getRequestDispatcher("/exception.jsp"); // 设置相应返回地址</p> <p> requestDispatcher.forward(request, response);</p> <p> return;</p> <p> } else if (formitem.getSize() > size) { // 如果用户上传文件过大</p> <p> exception = "上传的文件太大，不超过2M的文件";</p> <p> request.setAttribute("exception", exception); // 将提示信息保存在request对象中</p> <p> RequestDispatcher requestDispatcher = request.getRequestDispatcher("/exception.jsp"); // 设置相应返回地址</p> <p> requestDispatcher.forward(request, response);</p> <p> return;</p> <p> } else {</p> <p> String fileSize = new Long(formitem.getSize()).toString(); // 获取上传文件大小</p> <p> if ((name == null) || (name.equals(""))</p> <p> && (fileSize.equals("0"))) // 如果用户上传内容为空</p> <p> continue;</p> <p> String filename = ""; // 映射上传文件名称</p> <p> filename = name.substring(name.lastIndexOf("\\") + 1,name.length()); // 获取上传文件文件名</p> <p> String userDir = System.getProperty("user.dir");</p> <p> userDir=userDir.substring(0, userDir.length()-4);</p> <p> String fileDir=userDir+"\\webapps"+request.getContextPath()+"/upload/"+filename;</p> <p> fileAddress=fileDir;</p> <p> File saveFile = new File(fileDir); // 创建文件</p> <p> if(saveFile.exists()){</p> <p> saveFile.delete();</p> <p> }</p> <p> try {</p> <p> formitem.write(saveFile); // 向文件写数据</p> <p> } catch (Exception e) {</p> <p> exception = "文件上传失败";</p> <p> request.setAttribute("exception", exception); // 将提示信息保存在request对象中</p> <p> RequestDispatcher requestDispatcher = request.getRequestDispatcher("/exception.jsp"); // 设置相应返回地址</p> <p> requestDispatcher.forward(request, response);</p> <p> return;</p> <p> }</p> <p> }</p> <p> } else {</p> <p> String formname = formitem.getFieldName();// 获取表单项名称</p> <p> String form = formitem.getString("utf-8"); // 获取表单值</p> <p> if (formname.equals("dtype")) {</p> <p> dtype = form;</p> <p> } else if (formname.equals("ip")) {</p> <p> ip = form;</p> <p> } else if (formname.equals("port")) {</p> <p> port = form;</p> <p> } else if (formname.equals("dname")) {</p> <p> dname = form;</p> <p> }</p> <p> else if (formname.equals("uname")) {</p> <p> uname = form;</p> <p> }</p> <p> else if (formname.equals("tname")) {</p> <p> tname = form;</p> <p> }</p> <p> else if (formname.equals("pwd")) {</p> <p> pwd = form;</p> <p> }</p> <p> }</p> <p> }</p> <p>-----------整理了一下 就这么点代码 上传的 需要的 jar包 在 图片中</p> <p><img loading="lazy" class="ikqb_img" src="/picurl?url=https%3A%2F%2Fiknow-pic.cdn.bcebos.com%2F4e4a20a4462309f76f11a5b0720e0cf3d7cad612%3Fx-bce-process%3Dimage%252Fresize%252Cm_lfit%252Cw_600%252Ch_800%252Climit_1%252Fquality%252Cq_85%252Fformat%252Cf_auto" esrc="https://iknow-pic.cdn.bcebos.com/4e4a20a4462309f76f11a5b0720e0cf3d7cad612"></p></p> </div> </div> <div class="clear"></div> </div> </div> </div> <div class="wendaright"> <div class="wdluluerwema"> <div class="wdxgwttop">相关问答</div> <div class="wdxgwtnr"> </div> <div class="clear"></div> </div> <!-- 其他随机问答['id'=>alphaID($like['zid'])] --> <div class="wdluluerwema"> <div class="wdxgwttop">最新问答</div> <div class="wdxgwtnr"> <div class="wdxgwtcont"> <div class="wdxgtitle"><a href="https://www.g230.com/index.php/488010070.html">求一电影 一个头顶光圈长得很漂亮的天使从天上掉下来的电影</a></div> </div> <div class="wdxgwtcont"> <div class="wdxgtitle"><a href="https://www.g230.com/index.php/576230057.html">假定货币供给量和价格水平不变，货币需求为收入与利率的函数，则收入增加，货币需求和利率如何让变化</a></div> </div> <div class="wdxgwtcont"> <div class="wdxgtitle"><a href="https://www.g230.com/index.php/492371037.html">我爸1米58 我妈1米61 我现在12岁 已经1米68了 我想长到1米8 请问可以长到吗？</a></div> </div> <div class="wdxgwtcont"> <div class="wdxgtitle"><a href="https://www.g230.com/index.php/2011584175113576028.html">我今年25岁，掉头发特别严重。该怎么办。。。</a></div> </div> <div class="wdxgwtcont"> <div class="wdxgtitle"><a href="https://www.g230.com/index.php/2017373374205125028.html">巴宝莉红粉恋歌女士香水30毫升瓶喷为什么没有log?</a></div> </div> <div class="wdxgwtcont"> <div class="wdxgtitle"><a href="https://www.g230.com/index.php/1387049026703963700.html">放的笔顺怎么写</a></div> </div> <div class="wdxgwtcont"> <div class="wdxgtitle"><a href="https://www.g230.com/index.php/263992777732942125.html">博柏利红粉恋歌香水怎么看真假</a></div> </div> <div class="wdxgwtcont"> <div class="wdxgtitle"><a href="https://www.g230.com/index.php/1114037429442099419.html">我只是喜欢文字。喜欢用文字表达我的感情</a></div> </div> <div class="wdxgwtcont"> <div class="wdxgtitle"><a href="https://www.g230.com/index.php/351898282.html">我今年马上高中毕业了，想学市场营销，但不想读大学，没有一点那方面的专业知识。哪里能学到那方面的专...</a></div> </div> <div class="wdxgwtcont"> <div class="wdxgtitle"><a href="https://www.g230.com/index.php/623005866906324692.html">青梅煮酒论英雄，刘备和曹操哪个是真英雄?他俩谁先死？</a></div> </div> </div> </div> </div> <div class="clear"></div> <div class="footer"> <!-- 移动底部导航 --> <div class="fanhuitop"><a href="#top" ref="nofollow"><img src="https://www.g230.com/static/old/img/fhtop.png" alt="返回顶部" title="返回顶部"></a></div> <div class="dibu"> <div class="dibu"> </div> </div> <div class="banquan"> <p>内容全部来源于网络收集，如有侵权，请联系网站删除：QQ：24596024</p> </div> </div> </div> </div> <script> var _hmt = _hmt || []; 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