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POSpring Restful Service + Spring for android, missing parameter while uploading file
 

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  1. POSpring Restful Service + Spring for android, missing parameter while uploading file
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    <p>I've had fight with Spring restservice for 2 days and I can't get through file upload.</p> <p>I my controller and its methods is based on guide <a href="http://spring.io/guides/gs/uploading-files/" rel="nofollow">http://spring.io/guides/gs/uploading-files/</a></p> <p>But I had many problems with that. First of all I had to include library: jackson-mapper-asl because my request's were ALWAYS returning an error. I wonder why in Spring Webservice template project this library wasn't added.</p> <p>Since I've added jackson-mapper-asl library my simple GET request were handled properly. But when I implemented method that handles file upload as it was described in this guide it wouldn't work at all.</p> <p>this is my Controller class and its method implementation:</p> <pre><code>@Controller @RequestMapping("/controller") public class GreetingsController { @RequestMapping(value="/upload2", method=RequestMethod.POST) public @ResponseBody String handleFileUpload2(@RequestParam("name") String name, @RequestParam("myfile") MultipartFile file){ if (file != null &amp;&amp; !file.isEmpty()) { try { byte[] bytes = file.getBytes(); BufferedOutputStream stream = new BufferedOutputStream(new FileOutputStream(new File(name + "-uploaded"))); stream.write(bytes); stream.close(); return "You successfully uploaded " + name + " into " + name + "-uploaded !"; } catch (Exception e) { return "You failed to upload " + name + " =&gt; " + e.getMessage(); } } else { return "You failed to upload " + name + " because the file was empty."; } } </code></pre> <p>this is my part of android code that makes a request:</p> <pre><code>final String serviceAddress3= "http://someaddress:8080/testappx2/controller/upload2"; String mb05 = sdcardMountPoint + "/DCIM/halfMB.jar"; final RestTemplate restTemplate = new RestTemplate(true); FileSystemResource fsr = new FileSystemResource(mb05); final LinkedMultiValueMap&lt;String, Object&gt; map = new LinkedMultiValueMap&lt;String, Object&gt;(); map.add("name", "superplik"); map.add("myfile", fsr); Thread t = new Thread(new Runnable(){ public void run() { Object result = restTemplate.postForObject(serviceAddress2, map, String.class); } }); t.start(); </code></pre> <p>I use following libraries:</p> <pre><code>* spring-core 3.0.5.RELEASE * spring-web 3.0.5.RELEASE * spring-webmvc 3.0.5.RELEASE * jackson-mapper-asl 1.9.13 </code></pre> <p>I tried to make a POST request with SoapUI and directly from an Android mock APP. The only result I got was: <code>org.springframework.web.client.HttpClientErrorException: 400 Bad Request</code> I decided to dug into my application server logs and I found out that my request is not "complete"</p> <p>Request handle logs below:</p> <pre><code>16:09:46,029 TRACE [org.jboss.as.web.security] (http--0.0.0.0-8080-2) Begin invoke, caller=null 16:09:46,030 TRACE [org.springframework.web.servlet.DispatcherServlet] (http--0.0.0.0-8080-2) Bound request context to thread: org.apache.catalina.connector.RequestFacade@6195db1d 16:09:46,032 DEBUG [org.springframework.web.servlet.DispatcherServlet] (http--0.0.0.0-8080-2) DispatcherServlet with name 'mvc-dispatcher' processing POST request for [/testappx2/controller/upload] 16:09:46,034 TRACE [org.springframework.web.servlet.DispatcherServlet] (http--0.0.0.0-8080-2) Testing handler map [org.springframework.web.servlet.mvc.annotation.DefaultAnnotationHandlerMapping@16321271] in DispatcherServlet with name 'mvc-dispatcher' 16:09:46,035 DEBUG [org.springframework.web.servlet.mvc.annotation.DefaultAnnotationHandlerMapping] (http--0.0.0.0-8080-2) Mapping [/controller/upload] to HandlerExecutionChain with handler [hello.GreetingsController@6ee8560d] and 2 interceptors 16:09:46,037 TRACE [org.springframework.web.servlet.DispatcherServlet] (http--0.0.0.0-8080-2) Testing handler adapter [org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter@5769a85d] 16:09:46,039 DEBUG [org.apache.tomcat.util.http.Parameters] (http--0.0.0.0-8080-2) Set encoding to ISO-8859-1 16:09:46,040 DEBUG [org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerExceptionResolver] (http--0.0.0.0-8080-2) Resolving exception from handler [hello.GreetingsController@6ee8560d]: org.springframework.web.bind.MissingServletRequestParameterException: Required String parameter 'name' is not present 16:09:46,043 DEBUG [org.springframework.web.servlet.mvc.annotation.ResponseStatusExceptionResolver] (http--0.0.0.0-8080-2) Resolving exception from handler [hello.GreetingsController@6ee8560d]: org.springframework.web.bind.MissingServletRequestParameterException: Required String parameter 'name' is not present 16:09:46,045 DEBUG [org.springframework.web.servlet.mvc.support.DefaultHandlerExceptionResolver] (http--0.0.0.0-8080-2) Resolving exception from handler [hello.GreetingsController@6ee8560d]: org.springframework.web.bind.MissingServletRequestParameterException: Required String parameter 'name' is not present 16:09:46,047 DEBUG [org.springframework.web.servlet.DispatcherServlet] (http--0.0.0.0-8080-2) Null ModelAndView returned to DispatcherServlet with name 'mvc-dispatcher': assuming HandlerAdapter completed request handling 16:09:46,048 TRACE [org.springframework.web.servlet.DispatcherServlet] (http--0.0.0.0-8080-2) Cleared thread-bound request context: org.apache.catalina.connector.RequestFacade@6195db1d 16:09:46,049 DEBUG [org.springframework.web.servlet.DispatcherServlet] (http--0.0.0.0-8080-2) Successfully completed request 16:09:46,050 TRACE [org.springframework.web.context.support.XmlWebApplicationContext] (http--0.0.0.0-8080-2) Publishing event in WebApplicationContext for namespace 'mvc-dispatcher-servlet': ServletRequestHandledEvent: url=[/testappx2/controller/upload]; client=[172.16.241.58]; method=[POST]; servlet=[mvc-dispatcher]; session=[null]; user=[null]; time=[20ms]; status=[OK] 16:09:46,051 TRACE [org.springframework.web.context.support.XmlWebApplicationContext] (http--0.0.0.0-8080-2) Publishing event in Root WebApplicationContext: ServletRequestHandledEvent: url=[/testappx2/controller/upload]; client=[172.16.241.58]; method=[POST]; servlet=[mvc-dispatcher]; session=[null]; user=[null]; time=[20ms]; status=[OK] 16:09:46,052 TRACE [org.jboss.as.web.security] (http--0.0.0.0-8080-2) End invoke, caller=null 16:09:46,052 TRACE [org.jboss.security.SecurityRolesAssociation] (http--0.0.0.0-8080-2) Setting threadlocal:null 16:09:46,052 TRACE [org.jboss.jca.core.api.connectionmanager.ccm.CachedConnectionManager] (http--0.0.0.0-8080-2) popped object: org.jboss.as.connector.deployers.processors.CachedConnectionManagerSetupProcessor$CachedConnectionManagerSetupAction@4bae320 </code></pre> <p>Appserver says that "name" parameter was not passed: <code>[hello.GreetingsController@6ee8560d]: org.springframework.web.bind.MissingServletRequestParameterException: Required String parameter 'name' is not present</code></p> <p>The fun thing is (what I have accidentally discovered) that when I omit adding "myfile" parameter to LinkedMultiValueMap It founds it, parses it and then it gets into body of the method.</p> <p>Appserver log:</p> <pre><code>16:52:29,391 DEBUG [org.springframework.web.servlet.mvc.annotation.ResponseStatusExceptionResolver] (http--0.0.0.0-8080-1) Resolving exception from handler [hello.GreetingsController@788a7860]: org.springframework.web.bind.MissingServletRequestParameterException: Required MultipartFile parameter 'myfile' is not present 16:52:29,391 DEBUG [org.springframework.web.servlet.mvc.support.DefaultHandlerExceptionResolver] (http--0.0.0.0-8080-1) Resolving exception from handler [hello.GreetingsController@788a7860]: org.springframework.web.bind.MissingServletRequestParameterException: Required MultipartFile parameter 'myfile' is not present 16:52:29,392 DEBUG [org.springframework.web.servlet.DispatcherServlet] (http--0.0.0.0-8080-1) Null ModelAndView returned to DispatcherServlet with name 'mvc-dispatcher': assuming HandlerAdapter completed request handling 16:52:29,393 TRACE [org.springframework.web.servlet.DispatcherServlet] (http--0.0.0.0-8080-1) Cleared thread-bound request context: org.apache.catalina.connector.RequestFacade@8f22ae 16:52:29,393 DEBUG [org.springframework.web.servlet.DispatcherServlet] (http--0.0.0.0-8080-1) Successfully completed request 16:52:29,394 TRACE [org.springframework.web.context.support.XmlWebApplicationContext] (http--0.0.0.0-8080-1) Publishing event in WebApplicationContext for namespace 'mvc-dispatcher-servlet': ServletRequestHandledEvent: url=[/testappx3/controller/upload2]; client=[172.16.241.58]; method=[POST]; servlet=[mvc-dispatcher]; session=[null]; user=[null]; time=[35ms]; status=[OK] 16:52:29,394 TRACE [org.springframework.web.context.support.XmlWebApplicationContext] (http--0.0.0.0-8080-1) Publishing event in Root WebApplicationContext: ServletRequestHandledEvent: url=[/testappx3/controller/upload2]; client=[172.16.241.58]; method=[POST]; servlet=[mvc-dispatcher]; session=[null]; user=[null]; time=[35ms]; status=[OK] 16:52:29,395 TRACE [org.jboss.as.web.security] (http--0.0.0.0-8080-1) End invoke, caller=null </code></pre> <p>Now appserver says there's no "myfile" parameter.</p> <p>I thought there's something wrong with having declared more than 1 <code>RequestParameter</code> in this method. But tried it with multiple <code>String</code> <code>RequestParameters</code> and that seems to work fine.</p> <p>What am I doing wrong? Am I leprous or smth?</p> <p>Thanks in advance!</p>
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    2. COyou mean this one? http://spring.io/guides/gs/uploading-files/ I don't like to say that, but - it works for me
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