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java 동영상 튜토리얼)
<form action="/addPro" method="post" enctype="multipart/form-data"> <a>宠物(或产品)类型:</a><select id="categoryID" name="cid"></select><br/><br/> <a>宠物(或产品)名字:</a><input type="text" name="cname"><br/><br/> <a>一句话介绍:</a><input type="text" name="introduction"><br/><br/> <a>题目:</a><input type="text" name="title"><br/><br/> <a>价钱:</a><input type="text" name="price"><br/><br/> <a>库存:</a><input type="text" name="stock"><br/><br/> <a>状态:</a><select name="status"> <option value="1">在售</option> <option value="2">下架</option> <option value="3">删除</option> </select><br/><br/> <a>头像设置:</a><input type="file" οnchange="previewFile()" name="fileName"> <br/> <img src="${data.image}" alt="Image preview"/><br/> <a>详细描述(编辑完需要在文本框右上角点保存):</a><br/> <div id="editor"> <p>商品详细描述</p> <p>编辑完需要在文本框右上角点保存</p> </div><input type="hidden" name="details" id="detail"><br/><br/> <input type="submit" value="新增商品"> </form>
<!-- https://mvnrepository.com/artifact/commons-io/commons-io有关图片文本同时上传 --> <dependency> <groupId>commons-io</groupId> <artifactId>commons-io</artifactId> <version>2.4</version> </dependency> <!-- https://mvnrepository.com/artifact/commons-fileupload/commons-fileupload --> <dependency> <groupId>commons-fileupload</groupId> <artifactId>commons-fileupload</artifactId> <version>1.3.3</version> </dependency> <!-- https://mvnrepository.com/artifact/commons-collections/commons-collections --> <dependency> <groupId>commons-collections</groupId> <artifactId>commons-collections</artifactId> <version>3.1</version> </dependency> <!-- https://mvnrepository.com/artifact/commons-beanutils/commons-beanutils --> <dependency> <groupId>commons-beanutils</groupId> <artifactId>commons-beanutils</artifactId> <version>1.9.2</version> </dependency>
//新增产品 @RequestMapping("/addPro") public void addPro(HttpServletRequest request, HttpServletResponse response) throws IOException { //编码规范 response.setContentType("text/html"); // response.setCharacterEncoding("utf-8"); Product product = new Product(); //这种方法主要通过if (item.isFormField())这个条件判别文件还是非文件 DiskFileItemFactory factory = new DiskFileItemFactory(); ServletFileUpload upload = new ServletFileUpload(factory); List items = null; try { items = upload.parseRequest(request); } catch (FileUploadException e) { e.printStackTrace(); } // 解析request请求 Iterator iter = items.iterator();// 遍历表单中提交过来的内容 while (iter.hasNext()) { FileItem item = (FileItem) iter.next(); if (item.isFormField()) { // 如果是表单域 ,就是非文件上传元素 String value = item.getString("UTF-8"); // 获取value属性的值,这里需要指明UTF-8格式,否则出现中文乱码问题 if (item.getFieldName().equals("cid")) {// 对应form中属性的名字 int categoryId = Integer.parseInt(value); product.setCategory_id(categoryId); } else if (item.getFieldName().equals("cname")) { product.setName(value); }else if (item.getFieldName().equals("introduction")) { product.setIntroduction(value); }else if (item.getFieldName().equals("title")) { product.setTitle(value); }else if (item.getFieldName().equals("price")) { BigDecimal price=new BigDecimal(value); product.setPrice(price); }else if (item.getFieldName().equals("stock")) { product.setStock(Integer.parseInt(value)); }else if (item.getFieldName().equals("status")) { product.setStatus(Integer.parseInt(value)); }else if (item.getFieldName().equals("details")) { product.setDetail(value); } }else { String filename = item.getName(); // 文件的名字 String imgname = filename.substring(0, filename.indexOf(".")); //减去“.”后面的字符 //tomcat启动位置 // String t1 = System.getProperty("user.dir").substring(0, // System.getProperty("user.dir").length() - 4); String path = request.getServletContext().getRealPath("img"); //target找到img位置 Long time = Calendar.getInstance().getTimeInMillis(); //时间戳,保证文件命名不重复 String imgurl = "./img/"+imgname+time+".jpg"; product.setImage(imgurl); System.out.println(imgurl); File saveFile = new File(path+"/" + imgname+time+".jpg"); // 定义一个file指向一个具体的文件 try { item.write(saveFile);// 把上传的内容写到一个文件中 System.out.println("上传到"+path+"成功"); } catch (Exception e) { /* e.printStackTrace(); */ System.out.println("文件"+path+"为空"); } } } if(productDaoService.addProduct(product)){ PrintWriter out = response.getWriter(); out.print("<script language=\"javascript\">alert('ADD SUCCESS');window.location.href='/admin/administrator'</script>"); }else { PrintWriter out = response.getWriter(); out.print("<script language=\"javascript\">alert('增加失败');window.location.href='/admin/addProduct'</script>"); } }
java 입문 튜토리얼
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