I fill out the "Product" form, upload an image, select a category, press a button, and the e-mail falls. I reviewed the code many times, help me find the error!

ServiceImpl @Transactional public void addProduct(String name, String description, String city, double price, MultipartFile file, String category) { Product product = new Product(name, description, city, price); try { product.setImagePath(file.getBytes()); } catch (IOException e) { product.setImagePath(new byte[1]); } product.setCategory(categoryService.findCategoryById(Integer.parseInt(category))); productDao.save(product); } Controller @RequestMapping(value = "/createNewProduct", method = RequestMethod.GET) public String createProductPage(Model model) { List<Category> allCategories = categoryService.findAllCategories(); model.addAttribute("categories", allCategories); return "product-new"; } @RequestMapping(value = "/newProduct", method = RequestMethod.POST) public String createProduct(@RequestParam("name") String name, @RequestParam(value = "description") String description, @RequestParam(value = "city") String city, @RequestParam(value = "price") double price, @RequestParam(value = "imagePath") MultipartFile file, @RequestParam(value = "category") String category) { productService.addProduct(name, description, city, price, file, category); return "redirect:/"; }

Jsp

 <div class="container"> <form class="form-horizontal" action="newProduct" method="post" enctype="multipart/form-data"> <div class="form-group"> <label for="inputLogin3" class="col-sm-2 control-label">Name</label> <div class="col-sm-10"> <input type="text" class="form-control" name="name" placeholder="Name"> </div> </div> <div class="form-group"> <label for="inputPassword3" class="col-sm-2 control-label">Description</label> <div class="col-sm-10"> <input type="text" class="form-control" name="description" placeholder="Description"> </div> </div> <div class="form-group"> <label for="inputName3" class="col-sm-2 control-label">City</label> <div class="col-sm-10"> <input type="text" class="form-control" name="city" placeholder="City"> </div> </div> <div class="form-group"> <label for="inputSecondname3" class="col-sm-2 control-label">Price</label> <div class="col-sm-10"> <input type="text" class="form-control" name="price" placeholder="00.0"> </div> </div> <div class="form-group"> <label for="inputPhone3" class="col-sm-2 control-label">Image</label> <div class="col-sm-10"> <input type="file" class="form-control" name="imagePath" placeholder="Image"> </div> </div> <c:forEach items="${categories}" var="category"> <input type="radio" name= "category" value="${category.categoryId}">${category.name} </c:forEach> <div class="register_button"> <button type="submit" class="btn btn-primary">Create</button> </div> </form> Maven <dependencies> <dependency> <groupId>org.hibernate</groupId> <artifactId>hibernate-core</artifactId> <version>4.3.10.Final</version> </dependency> <dependency> <groupId>mysql</groupId> <artifactId>mysql-connector-java</artifactId> <version>5.1.36</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-core</artifactId> <version>4.1.7.RELEASE</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-beans</artifactId> <version>4.1.7.RELEASE</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-aop</artifactId> <version>4.1.7.RELEASE</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-context</artifactId> <version>4.1.7.RELEASE</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-orm</artifactId> <version>4.1.7.RELEASE</version> </dependency> <dependency> <groupId>commons-dbcp</groupId> <artifactId>commons-dbcp</artifactId> <version>1.4</version> </dependency> <dependency> <groupId>org.apache.commons</groupId> <artifactId>commons-lang3</artifactId> <version>3.4</version> </dependency> <dependency> <groupId>javax.persistence</groupId> <artifactId>persistence-api</artifactId> <version>1.0.2</version> </dependency> <dependency> <groupId>org.hibernate</groupId> <artifactId>hibernate-entitymanager</artifactId> <version>4.3.10.Final</version> </dependency> <dependency> <groupId>javax.servlet</groupId> <artifactId>javax.servlet-api</artifactId> <version>3.0.1</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-web</artifactId> <version>4.1.7.RELEASE</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-webmvc</artifactId> <version>4.1.7.RELEASE</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-tx</artifactId> <version>4.1.7.RELEASE</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-context-support</artifactId> <version>4.1.7.RELEASE</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-aspects</artifactId> <version>4.1.7.RELEASE</version> </dependency> <dependency> <groupId>javax.servlet.jsp</groupId> <artifactId>jsp-api</artifactId> <version>2.1</version> </dependency> <dependency> <groupId>jstl</groupId> <artifactId>jstl</artifactId> <version>1.2</version> </dependency> <dependency> <groupId>org.apache.tiles</groupId> <artifactId>tiles-template</artifactId> <version>3.0.5</version> </dependency> <dependency> <groupId>org.apache.tiles</groupId> <artifactId>tiles-core</artifactId> <version>3.0.5</version> </dependency> <dependency> <groupId>org.apache.tiles</groupId> <artifactId>tiles-jsp</artifactId> <version>3.0.5</version> </dependency> <dependency> <groupId>org.apache.tiles</groupId> <artifactId>tiles-servlet</artifactId> <version>3.0.5</version> </dependency> <dependency> <groupId>org.mindrot</groupId> <artifactId>jbcrypt</artifactId> <version>0.3m</version> </dependency> <dependency> <groupId>org.springframework.security</groupId> <artifactId>spring-security-crypto</artifactId> <version>3.1.0.RELEASE</version> </dependency> <dependency> <groupId>org.springframework.security</groupId> <artifactId>spring-security-core</artifactId> <version>4.0.0.RELEASE</version> </dependency> <dependency> <groupId>org.springframework.security</groupId> <artifactId>spring-security-web</artifactId> <version>4.0.0.RELEASE</version> </dependency> <dependency> <groupId>org.springframework.security</groupId> <artifactId>spring-security-config</artifactId> <version>4.0.0.RELEASE</version> </dependency> <dependency> <groupId>org.springframework.security</groupId> <artifactId>spring-security-taglibs</artifactId> <version>4.0.0.RELEASE</version> </dependency> <dependency> <groupId>org.springframework.data</groupId> <artifactId>spring-data-jpa</artifactId> <version>1.7.1.RELEASE</version> </dependency> <!-- Form Validation using Annotations --> <dependency> <groupId>javax.validation</groupId> <artifactId>validation-api</artifactId> <version>1.1.0.Final</version> </dependency> <dependency> <groupId>org.hibernate</groupId> <artifactId>hibernate-validator</artifactId> <version>5.0.1.Final</version> </dependency> <dependency> <groupId>commons-fileupload</groupId> <artifactId>commons-fileupload</artifactId> <version>1.3.1</version> </dependency> <dependency> <groupId>commons-io</groupId> <artifactId>commons-io</artifactId> <version>2.4</version> </dependency> </dependencies>

    1 answer 1

     В сервлет-контекст.хмл надо прописать bean для того, чтобы Spring дал добро загружать файлы. <bean id="multipartResolver" class="org.springframework.web.multipart.commons.CommonsMultipartResolver"> <property name="maxUploadSize" value="2000000"></property> </bean>