java - Upload file via rest service -

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i want upload files restservice. found in web, still can't fix problem. maybe because i'am using spring in rest service?! here code:

html

<input type="button" value="upload document" id="button"> <input id="filetoupload" type="file">

jquery

jquery("document").ready(function () {     $("#button").on("click", function () {            var fileinput= $('input[name="fileinput"]')[0].files[0];            var data = new formdata();           data.append('file', fileinput);           $.ajax({             url: '.../upload',             type: 'post',             data: data,             cache: false,             contenttype: false,             processdata: false,             success: function(data){                 alert("successfully.");             },             error: function(data){                 alert("failed.");             }           });     }); });

java (restservice)

@requestmapping(value = "/upload", method = { requestmethod.post }, produces = { mediatype.multipart_form_data_value,         mediatype.application_form_urlencoded_value, mediatype.application_json_value }) public void uploadingfile(@requestbody inputstream uploadedinputstream) throws ioexception {     system.out.println("uploadedinputstream: " + uploadedinputstream); }

exception

 servlet.service() servlet rest api dispatcher threw exception: java.lang.illegalstateexception: parameters processing failed.

is rest service ok? can't find bug :(

pom.xml

<!-- spring -->     <dependency>         <groupid>org.springframework</groupid>         <artifactid>spring-core</artifactid>     </dependency>     <dependency>         <groupid>org.springframework</groupid>         <artifactid>spring-context</artifactid>     </dependency>     <dependency>         <groupid>org.springframework</groupid>         <artifactid>spring-webmvc</artifactid>     </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>

application-context.xml

<?xml version="1.0" encoding="utf-8"?> <beans xmlns="http://www.springframework.org/schema/beans" xmlns:xsi="http://www.w3.org/2001/xmlschema-instance" xmlns:context="http://www.springframework.org/schema/context" xmlns:mvc="http://www.springframework.org/schema/mvc" xsi:schemalocation="http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-4.1.xsd     http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd     http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.1.xsd">   <bean id="multipartresolver"     class="org.springframework.web.multipart.commons.commonsmultipartresolver">     <property name="maxuploadsize" value="50000000" /> </bean>

solution

java (restservice)

    @requestmapping(value = "/upload", method = requestmethod.post) public void uploadingfile(@requestparam("file") multipartfile uploadedinputstream) throws ioexception {     system.out.println("...the parameter binding works now"); }

java (spring config)

@bean public static commonsmultipartresolver multipartresolver() {     commonsmultipartresolver cmr = new commonsmultipartresolver();     cmr.setmaxuploadsize(50000000);     return cmr; }

(alternative - application.xml)

    <bean id="multipartresolver" class="org.springframework.web.multipart.commons.commonsmultipartresolver">     <property name="maxuploadsize" value="50000000" />    </bean>

your handler method should bellow:

@requestmapping(value = "/upload", method = requestmethod.post) public void uploadingfile(multiparthttpservletrequest request, httpservletresponse response) throws ioexception {      iterator<string> itr =  request.getfilenames();      multipartfile file = request.getfile(itr.next());     system.out.println(file.getoriginalfilename() +" uploaded!"); }

don't forget add following lines in application context:

<mvc:annotation-driven />  <bean id="multipartresolver"     class="org.springframework.web.multipart.commons.commonsmultipartresolver">     <property name="maxuploadsize" value="1048576"/> </bean>

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