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现在我正在对我的代码进行大规模的重构，我想统一我使用 Restkit 的方式。我对我的 API 服务器和 REST 调用进行 RPC 调用的方法是分开的。

使用 objectMapping 进行的 REST 调用和使用 RKClient 进行的 RPC 调用。除此之外，我使用块而不是代表，这很好，但我对它的工作原理有些怀疑。

这是我之前的代码，它可以很好地发布对象并使用委托手动进行映射，之后是使用不发送参数的块的新代码。

//This was the old way...
- (void) upload: (KFMedia *) pic {

    RKParams* imageParams = [RKParams params];
    NSData* imageData = UIImageJPEGRepresentation(pic.image, 0.7f);
    [imageParams setData:imageData MIMEType:@"image/jpg" forParam:@"FileUpload"];

    [[RKClient sharedClient] post:@"/api/upload/" params:imageParams delegate:self]; 

}

//This is the new way I'm trying...
- (void) upload: (KFMedia *) pic onLoad:(RKObjectLoaderDidLoadObjectBlock) loadBlock onError:(RKRequestDidFailLoadWithErrorBlock)failBlock{

    RKParams* imageParams = [RKParams params];
    NSData* imageData = UIImageJPEGRepresentation(pic.image, 0.7f);
    [imageParams setData:imageData MIMEType:@"image/jpg" forParam:@"FileUpload"];

    [[RKObjectManager sharedManager] loadObjectsAtResourcePath:@"/api/upload/" usingBlock:^(RKObjectLoader *loader) {

        //Trying to set params here, but it seems that I'm not sending anything :(
        loader.params = imageParams;
        loader.objectMapping = [[RKObjectManager sharedManager].mappingProvider objectMappingForClass:[KFMedia class]];
        loader.delegate = self;
        loader.onDidLoadObject = loadBlock;
        loader.onDidFailWithError = failBlock;
        loader.onDidFailLoadWithError = failBlock;
        loader.onDidLoadResponse = ^(RKResponse *response) {
            [self fireErrorBlock:failBlock onErrorInResponse:response];
        };

    }];

}

我发送的请求的正文为空，这意味着参数未正确发送或设置。关于如何让它发挥作用的任何想法？

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1 回答 1

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我刚刚解决了这个问题。要使用 loadObjectsAtResourcePath 发送额外的参数，您必须强制使用

loader.method = RKRequestMethodPOST;

代码如下：

- (void) upload: (KFMedia *) pic onLoad:(RKObjectLoaderDidLoadObjectBlock) loadBlock onError:(RKRequestDidFailLoadWithErrorBlock)failBlock{

    RKParams* imageParams = [RKParams params];
    NSData* imageData = UIImageJPEGRepresentation(pic.image, 0.7f);
    [imageParams setData:imageData MIMEType:@"image/jpg" forParam:@"FileUpload"];

    [[RKObjectManager sharedManager] loadObjectsAtResourcePath:@"/api/upload/" usingBlock:^(RKObjectLoader *loader) {

        loader.method = RKRequestMethodPOST; //This line solved the problem
        loader.params = imageParams;
        loader.objectMapping = [[RKObjectManager sharedManager].mappingProvider objectMappingForClass:[KFMedia class]];
        loader.delegate = self;
        loader.onDidLoadObject = loadBlock;
        loader.onDidFailWithError = failBlock;
        loader.onDidFailLoadWithError = failBlock;
        loader.onDidLoadResponse = ^(RKResponse *response) {
            [self fireErrorBlock:failBlock onErrorInResponse:response];
        };

    }];

}
于 2012-05-25T20:49:43.407 回答