Spring upload file problems
15,530
Solution 1
I fixed this problem by adding the following to my spring config file:
<bean id="multipartResolver" class="org.springframework.web.multipart.commons.CommonsMultipartResolver" />
(The error I was getting was "org.springframework.web.bind.MissingServletRequestParameterException: Required MultipartFile parameter 'myFile' is not present
Solution 2
i can do it with
@Override
protected void customizeRegistration(ServletRegistration.Dynamic registration) {
MultipartConfigElement multipartConfigElement = new MultipartConfigElement("/",100000, 200000, 50000);
registration.setMultipartConfig(multipartConfigElement);
}
Solution 3
@user64141 is right but if using Java config instead of xml, try
@Bean
public MultipartResolver multipartResolver() {
return new CommonsMultipartResolver();
}
Comments
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user2160696 almost 2 years
I need to upload file from browser to server. I use spring 3.2 as my web framework.
So i configured my app like this.
1 - I got web.xml
<?xml version="1.0" encoding="UTF-8"?> <web-app version="2.5" xmlns="http://java.sun.com/xml/ns/javaee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd"> <context-param> <param-name>contextClass</param-name> <param-value>org.springframework.web.context.support.AnnotationConfigWebApplicationContext</param-value> </context-param> <context-param> <param-name>contextConfigLocation</param-name> <param-value>racoonsoft.chaos.settings</param-value> </context-param> <listener> <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class> </listener> <servlet> <servlet-name>MyServlet</servlet-name> <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class> <init-param> <param-name>contextConfigLocation</param-name> <param-value></param-value> </init-param> <load-on-startup>1</load-on-startup> </servlet> <servlet-mapping> <servlet-name>MyServlet</servlet-name> <url-pattern>/</url-pattern> </servlet-mapping> <welcome-file-list> <welcome-file>admin/library</welcome-file> </welcome-file-list> </web-app>
2 - MainConfig class
@Configuration @Import({WebConfig.class }) public class MainConfig { @Bean public static PropertySourcesPlaceholderConfigurer propertySourcesPlaceholderConfigurer() { return new PropertySourcesPlaceholderConfigurer(); } @Bean public static ScheduledAnnotationBeanPostProcessor scheduledAnnotationBeanPostProcessor() { return new ScheduledAnnotationBeanPostProcessor(); } @Bean public static StandardServletMultipartResolver multipartResolver() { StandardServletMultipartResolver resolver = new StandardServletMultipartResolver(); return resolver; } }
3 - Controller to handle multipart uploads
@Controller @MultipartConfig(fileSizeThreshold=1024*1024*2, // 2MB maxFileSize=1024*1024*10, // 10MB maxRequestSize=1024*1024*50) public class FileUpload { public static final int UPLOAD_RESULT_OK = 100000; @Autowired BookDao book_dao; @RequestMapping(value = "/admin/library/upload_file", method = RequestMethod.POST) public String saveFiles(@RequestParam("file-file") MultipartFile file) throws IOException { if (!file.isEmpty()) { byte[] bytes = file.getBytes(); return "redirect:caps/total_fail"; } else { return "redirect:caps/total_fail"; } } }
4 - jsp where i placed my form to submit files
...<form method="post" action="/admin/library/upload_file" enctype="multipart/form-data"> <input type="text" name="name"/> <input type="file" name="file-file"/> <input type="submit"/> </form>...
When i submit my form i got an Exception
org.springframework.web.bind.MissingServletRequestParameterException: Required MultipartFile parameter 'file-file' is not present org.springframework.web.method.annotation.RequestParamMethodArgumentResolver.handleMissingValue(RequestParamMethodArgumentResolver.java:202)
I got no idea why. When i remove @RequestParam annotaion i got my method invoked but file parameter = null. What is my problem?
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user2160696 about 11 yearsI`m not sure how do i configure it. Do i need to make changes to my web.xml? Or i must create my own Filter extending MultipartFilter and map it to /admin/library/upload_file??
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user2160696 about 11 yearsSadly it didn`t help. I added those two parts, but still got null as parameter.
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mthmulders about 11 yearsBy default, this filter will look for a Spring bean called "filterMultipartResolver" that acts as a
MultipartResolver
. You can specify another bean name using the "multipartResolverBeanName" filter init-param in your web.xml. Can you either change the name of your "multipartResolver" bean, or fix the configuration of the filter, and see if that works?