java图片和文本同时提交到表单的实例代码

<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>");

  }

 }