使用AFNetworking的多部分PUT请求

Question

在iOS上使用AFNetworking编写多部分PUT请求的正确方法是什么？(仍然是Objective-C,而不是Swift)

我看起来好像AFNetworking可以做多部分POST而不是PUT,那是什么解决方案？

谢谢

Answer 1

您可以使用multipartFormRequestWithMethod创建PUT具有所需数据的多部分请求.

例如,在AFNetworking v3.x中:

AFHTTPSessionManager *manager = [AFHTTPSessionManager manager];

NSError *error;
NSURLRequest *request = [manager.requestSerializer multipartFormRequestWithMethod:@"PUT" URLString:@"http://example.com/rest/api/" parameters:@{@"foo" : @"bar"} constructingBodyWithBlock:^(id<AFMultipartFormData> formData) {
    NSString *value = @"qux";
    NSData *data = [value dataUsingEncoding:NSUTF8StringEncoding];
    [formData appendPartWithFormData:data name:@"baz"];
} error:&error];

NSURLSessionDataTask *task = [manager dataTaskWithRequest:request uploadProgress:nil downloadProgress:nil completionHandler:^(NSURLResponse * _Nonnull response, id  _Nullable responseObject, NSError * _Nullable error) {
    if (error) {
        NSLog(@"%@", error);
        return;
    }

    // if you want to know what the statusCode was

    if ([response isKindOfClass:[NSHTTPURLResponse class]]) {
        NSInteger statusCode = [(NSHTTPURLResponse *)response statusCode];
        NSLog(@"statusCode: %ld", statusCode);
    }

    NSLog(@"%@", responseObject);
}];
[task resume];

如果AFNetworking 2.x,您可以使用AFHTTPRequestOperationManager:

AFHTTPRequestOperationManager *manager = [AFHTTPRequestOperationManager manager];

NSError *error;
NSURLRequest *request = [manager.requestSerializer multipartFormRequestWithMethod:@"PUT" URLString:@"http://example.com/rest/api/" parameters:@{@"foo" : @"bar"} constructingBodyWithBlock:^(id<AFMultipartFormData> formData) {
    NSString *value = @"qux";
    NSData *data = [value dataUsingEncoding:NSUTF8StringEncoding];
    [formData appendPartWithFormData:data name:@"baz"];
} error:&error];

AFHTTPRequestOperation *operation = [manager HTTPRequestOperationWithRequest:request success:^(AFHTTPRequestOperation *operation, id responseObject) {
    NSLog(@"%@", responseObject);
} failure:^(AFHTTPRequestOperation *operation, NSError *error) {
    NSLog(@"%@", error);
}];

[manager.operationQueue addOperation:operation];

已经说明了如何创建这样的请求,值得注意的是服务器可能无法解析它们.值得注意的是,PHP解析多部分POST请求,但不解析多部分PUT请求.