我正在编写一个ios应用程序，我需要将照片从我的应用程序发送到我的grails服务器。 在ios中我这样做：
+(void)sendPhoto:(NSData *)data withName:(NSString *)name onController:(UIViewController<MERequestDelegate> *)controller
{
MERequest *request = [[MERequest alloc] init];
request.delegate = controller;
//User
User *user = [User loadUser];
//Creazione del BOdy della richiesta Multipart
NSMutableData *body = [[NSMutableData alloc] init];
//Token
[body appendData:[[NSString stringWithFormat:@"\r\n--%@\r\n", kBOUNDARY] dataUsingEncoding:NSUTF8StringEncoding]];
[body appendData:[[NSString stringWithFormat:@"Content-Disposition: form-data; name=\"token\"\r\n\r\n%@", user.token] dataUsingEncoding:NSUTF8StringEncoding]];
//Immagine
[body appendData:[[NSString stringWithFormat:@"\r\n--%@\r\n", kBOUNDARY] dataUsingEncoding:NSUTF8StringEncoding]];
[body appendData:[[NSString stringWithFormat:@"Content-Disposition: form-data; name=\"photo\"; filename=\"%@.jpg\"\r\n", name] dataUsingEncoding:NSUTF8StringEncoding]];
[body appendData:[@"Content-Type: image/jpg\r\n\r\n" dataUsingEncoding:NSUTF8StringEncoding]];
[body appendData:[NSData dataWithData:data]];
//Chiusura Body
[body appendData:[[NSString stringWithFormat:@"\r\n--%@\r\n", kBOUNDARY] dataUsingEncoding:NSUTF8StringEncoding]];
[request requestMultipartAtUrl:[NSString stringWithFormat:@"%@WS/sendMultipart", [SettingsUtils webAppUrl]] withData:body];
}
-(void)requestMultipartAtUrl:(NSString *)url withData:(NSData *)body
{
//NSError *error;
NSString *stringToBeSent;
_timeOutSecond = 10;
stringToBeSent = [[NSString alloc] initWithFormat:@"%@", url];
NSLog(@"URL: %@", stringToBeSent);
//Url
self.theUrl = [NSURL URLWithString:[stringToBeSent stringByAddingPercentEscapesUsingEncoding:NSUTF8StringEncoding]];
//Request
self.mutableRequest = [NSMutableURLRequest requestWithURL:self.theUrl];
//Header
[self.mutableRequest setCachePolicy:NSURLRequestReloadIgnoringLocalCacheData];
[self.mutableRequest setHTTPShouldHandleCookies:NO];
[self.mutableRequest setTimeoutInterval:30];
[self.mutableRequest setHTTPMethod:@"POST"];
NSString *contentType = [NSString stringWithFormat:@"multipart/form-data; boundary=%@", kBOUNDARY];
[self.mutableRequest addValue:contentType forHTTPHeaderField:@"Content-Type"];
[self.mutableRequest addValue:[NSString stringWithFormat:@"%d", [body length]] forHTTPHeaderField:@"Content-Length"];
//Data
[self.mutableRequest setHTTPBody:body];
//Set Timer
if(_timer == NULL){
_timer = [NSTimer scheduledTimerWithTimeInterval:_timeOutSecond
target:self
selector:@selector(requestTimedOut:)
userInfo:nil
repeats:NO];
}
//Create the connection
_connection = [[NSURLConnection alloc] initWithRequest:self.mutableRequest delegate:self];
}
在Grails中我有一个只有println的空白方法：
def sendMultipart = {
println("Send")
}
当我启动应用程序并创建请求时，我在grails上出现此错误：
2014-02-11 23:28:46,925 [http-8080-1] ERROR [org.apache.catalina.core.ContainerBase.[Tomcat].[localhost].[/SimplifyWFA].[default](StandardWrapperValve.java:281)] - Servlet.service() for servlet default threw exception
org.springframework.web.multipart.MultipartException: Could not parse multipart servlet request; nested exception is org.apache.commons.fileupload.FileUploadException: Stream ended unexpectedly
at org.springframework.web.multipart.commons.CommonsMultipartResolver.parseRequest(CommonsMultipartResolver.java:162)
at org.codehaus.groovy.grails.web.multipart.ContentLengthAwareCommonsMultipartResolver.parseRequest(ContentLengthAwareCommonsMultipartResolver.java:48)
at org.springframework.web.multipart.commons.CommonsMultipartResolver.resolveMultipart(CommonsMultipartResolver.java:138)
at org.codehaus.groovy.grails.web.mapping.DefaultUrlMappingInfo.getResolvedRequest(DefaultUrlMappingInfo.java:173)
at org.codehaus.groovy.grails.web.mapping.DefaultUrlMappingInfo.tryMultipartParams(DefaultUrlMappingInfo.java:163)
at org.codehaus.groovy.grails.web.mapping.DefaultUrlMappingInfo.checkDispatchAction(DefaultUrlMappingInfo.java:140)
at org.codehaus.groovy.grails.web.mapping.DefaultUrlMappingInfo.getActionName(DefaultUrlMappingInfo.java:122)
at org.codehaus.groovy.grails.web.mapping.AbstractUrlMappingInfo.populateParamsForMapping(AbstractUrlMappingInfo.java:94)
at org.codehaus.groovy.grails.web.mapping.AbstractUrlMappingInfo.configure(AbstractUrlMappingInfo.java:44)
at org.codehaus.groovy.grails.plugins.springsecurity.AnnotationFilterInvocationDefinition.configureMapping(AnnotationFilterInvocationDefinition.java:144)
at org.codehaus.groovy.grails.plugins.springsecurity.AnnotationFilterInvocationDefinition.determineUrl(AnnotationFilterInvocationDefinition.java:82)
at org.codehaus.groovy.grails.plugins.springsecurity.AbstractFilterInvocationDefinition.getAttributes(AbstractFilterInvocationDefinition.java:80)
at org.springframework.security.access.intercept.AbstractSecurityInterceptor.beforeInvocation(AbstractSecurityInterceptor.java:172)
at org.springframework.security.web.access.intercept.FilterSecurityInterceptor.invoke(FilterSecurityInterceptor.java:106)
at org.springframework.security.web.access.intercept.FilterSecurityInterceptor.doFilter(FilterSecurityInterceptor.java:83)
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:381)
at org.springframework.security.web.access.ExceptionTranslationFilter.doFilter(ExceptionTranslationFilter.java:97)
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:381)
at org.springframework.security.web.authentication.AnonymousAuthenticationFilter.doFilter(AnonymousAuthenticationFilter.java:78)
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:381)
at org.springframework.security.web.authentication.rememberme.RememberMeAuthenticationFilter.doFilter(RememberMeAuthenticationFilter.java:112)
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:381)
at org.springframework.security.web.servletapi.SecurityContextHolderAwareRequestFilter.doFilter(SecurityContextHolderAwareRequestFilter.java:54)
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:381)
at org.springframework.security.web.authentication.AbstractAuthenticationProcessingFilter.doFilter(AbstractAuthenticationProcessingFilter.java:187)
at org.codehaus.groovy.grails.plugins.springsecurity.RequestHolderAuthenticationFilter.doFilter(RequestHolderAuthenticationFilter.java:40)
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:381)
at org.codehaus.groovy.grails.plugins.springsecurity.MutableLogoutFilter.doFilter(MutableLogoutFilter.java:79)
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:381)
at org.springframework.security.web.context.SecurityContextPersistenceFilter.doFilter(SecurityContextPersistenceFilter.java:79)
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:381)
at org.springframework.security.web.FilterChainProxy.doFilter(FilterChainProxy.java:168)
at org.springframework.web.filter.DelegatingFilterProxy.invokeDelegate(DelegatingFilterProxy.java:237)
at org.springframework.web.filter.DelegatingFilterProxy.doFilter(DelegatingFilterProxy.java:167)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at org.codehaus.groovy.grails.web.servlet.mvc.GrailsWebRequestFilter.doFilterInternal(GrailsWebRequestFilter.java:69)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:76)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at org.codehaus.groovy.grails.web.filters.HiddenHttpMethodFilter.doFilterInternal(HiddenHttpMethodFilter.java:65)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:76)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:88)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:76)
at org.springframework.web.filter.DelegatingFilterProxy.invokeDelegate(DelegatingFilterProxy.java:237)
at org.springframework.web.filter.DelegatingFilterProxy.doFilter(DelegatingFilterProxy.java:167)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:128)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:293)
at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:849)
at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:583)
at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:454)
at java.lang.Thread.run(Thread.java:695)
Caused by: org.apache.commons.fileupload.FileUploadException: Stream ended unexpectedly
at org.apache.commons.fileupload.FileUploadBase.parseRequest(FileUploadBase.java:381)
at org.apache.commons.fileupload.servlet.ServletFileUpload.parseRequest(ServletFileUpload.java:126)
at org.springframework.web.multipart.commons.CommonsMultipartResolver.parseRequest(CommonsMultipartResolver.java:155)
... 59 more
Caused by: org.apache.commons.fileupload.MultipartStream$MalformedStreamException: Stream ended unexpectedly
at org.apache.commons.fileupload.MultipartStream.readHeaders(MultipartStream.java:539)
at org.apache.commons.fileupload.FileUploadBase$FileItemIteratorImpl.findNextItem(FileUploadBase.java:976)
at org.apache.commons.fileupload.FileUploadBase$FileItemIteratorImpl.hasNext(FileUploadBase.java:1040)
at org.apache.commons.fileupload.FileUploadBase.parseRequest(FileUploadBase.java:356)
... 61 more
为什么会出现此错误？这是ios的错？或者我错过了grails设置？
谢谢！
答案 0 :(得分：3)
我解决了这个问题!! 问题出在这里：
//Chiusura Body
[body appendData:[[NSString stringWithFormat:@"\r\n--%@\r\n", kBOUNDARY] dataUsingEncoding:NSUTF8StringEncoding]];
多部分封闭体在边界之后需要“ - ”：
@"\r\n--%@--"
我们走了：D