Spring-boot Thymeleaf Multipart file upload -

i trying create page allows user select file uploaded springmvc controller.

here controller:

@restcontroller public class customerdatacontroller {   @requestmapping(value = "/customerfile", method = requestmethod.post)  public @responsebody string handlefileupload(@requestparam("myfile") multipartfile file) {       if ( !file.isempty() ) {           string name = file.getname();           try {               byte[] bytes = file.getbytes();                bufferedoutputstream stream = new bufferedoutputstream( new fileoutputstream( new file( name + "-uploaded" ) ) );               stream.write( bytes );               stream.close();               return "you uploaded " + name + " " + name + "-uploaded !";            catch ( exception e ) {                 return "you failed upload " + name + " => " + e.getmessage();            }       } else {            return "the selected file empty , not uploaded.";       }   } 

and upload.html form has:

 <form action="upload" th:action="@{/customerfile}" method="post" enctype="multipart/form-data">       <input type="file" name="myfile" />       <input type="submit" />  </form> 

i have tried using standard (non thymeleaf form):

 <form method="post" action="/customerfile" enctype="multipart/form-data">       <input type="file" name="file"/>       <input type="submit"/>  </form> 

not sure if it's relevant have following configuration:

 @override     public void addviewcontrollers(viewcontrollerregistry registry) {        ...         registry.addviewcontroller( "/upload" ).setviewname( "upload" );     }  @bean     multipartconfigelement multipartconfigelement() {         multipartconfigfactory factory = new multipartconfigfactory();         factory.setmaxfilesize("512kb");         factory.setmaxrequestsize("512kb");         return factory.createmultipartconfig();     } 

i have following in build.gradle: apply plugin: 'java'

apply plugin: 'groovy' apply plugin: 'idea' apply plugin: 'spring-boot' apply plugin: 'jacoco' apply plugin: 'war'  repositories {     mavencentral()     maven { url "http://repo.spring.io/libs-snapshot" } }  dependencies {     compile("org.springframework.boot:spring-boot-starter-web")     compile("org.springframework.boot:spring-boot-starter-data-jpa:1.0.0.rc4")     compile("org.springframework:spring-orm:4.0.0.rc1")     compile("org.hibernate:hibernate-entitymanager:4.2.1.final")     compile("com.h2database:h2:1.3.172")     compile("joda-time:joda-time:2.3")     compile("org.thymeleaf:thymeleaf-spring4")     compile("org.codehaus.groovy.modules.http-builder:http-builder:0.7.1")     compile('org.codehaus.groovy:groovy-all:2.2.1')     compile('org.jadira.usertype:usertype.jodatime:2.0.1')      testcompile('org.spockframework:spock-core:0.7-groovy-2.0') {         exclude group: 'org.codehaus.groovy', module: 'groovy-all'     }     testcompile('org.codehaus.groovy.modules.http-builder:http-builder:0.7+')     testcompile("junit:junit") } 

i running embedded tomcat, launched via:

public static void main(string[] args) {         applicationcontext ofac = springapplication.run( ofac.class, args ); } 

when click submit button, don't see request in controller following in browser:

http status 400 - required multipartfile parameter 'myfile' not present  type status report  message required multipartfile parameter 'myfile' not present  description request sent client syntactically incorrect. apache tomcat/7.0.52 

here firebug tells me request:

connection  close content-language    en content-length  1080 content-type    text/html;charset=utf-8 date    mon, 24 mar 2014 17:09:55 gmt server  apache-coyote/1.1 request headersview source accept  text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8 accept-encoding gzip, deflate accept-language en-us,en;q=0.5 connection  keep-alive cookie  jsessionid=86768954cd2877a7d78535e26cffb8da dnt 1 host    localhost:9001 referer http://localhost:9001/upload 

resolution update spring boot (a bug in multipart autoconfig had been fixed it).