如何使用AFNetwork的AFHTTPRequestOperationManager设置HTTP请求主体？

Question

我正在使用AFHTTPRequestOperationManager(2.0 AFNetworking库)来发送REST POST请求.但是经理只有调用来设置参数.

-((AFHTTPRequestOperation *)POST:(NSString *)URLString
                  parameters:(NSDictionary *)parameters
                     success:(void (^)(AFHTTPRequestOperation *operation, id responseObject))success
                     failure:(void (^)(AFHTTPRequestOperation *operation, NSError *error))failure;

我还需要用字符串设置HTTP请求体.我怎么能用AFHTTPRequestOperationManager来做呢？谢谢.

Answer 1

我遇到了同样的问题并通过添加代码解决了它,如下所示:

NSMutableURLRequest *request = [NSMutableURLRequest requestWithURL:URL
              cachePolicy:NSURLRequestReloadIgnoringCacheData  timeoutInterval:10];

[request setHTTPMethod:@"POST"];
[request setValue:@"Basic: someValue" forHTTPHeaderField:@"Authorization"];
[request setValue: @"application/json" forHTTPHeaderField:@"Content-Type"];
[request setHTTPBody: [body dataUsingEncoding:NSUTF8StringEncoding]];

AFHTTPRequestOperation *op = [[AFHTTPRequestOperation alloc] initWithRequest:request];
op.responseSerializer = [AFJSONResponseSerializer serializer];
[op setCompletionBlockWithSuccess:^(AFHTTPRequestOperation *operation, id responseObject) {

    NSLog(@"JSON responseObject: %@ ",responseObject);

} failure:^(AFHTTPRequestOperation *operation, NSError *error) {
    NSLog(@"Error: %@", [error localizedDescription]);

}];
[op start];

Answer 2

对于AFHTTPRequestOperationManager

[requestOperationManager.requestSerializer setValue:@"your Content Type" forHTTPHeaderField:@"Content-Type"];
[requestOperationManager.requestSerializer setValue:@"no-cache" forHTTPHeaderField:@"Cache-Control"];

// Fill parameters
NSDictionary *parameters = @{@"name"        : @"John",
                             @"lastName"    : @"McClane"};

// Customizing serialization. Be careful, not work without parametersDictionary
[requestOperationManager.requestSerializer setQueryStringSerializationWithBlock:^NSString *(NSURLRequest *request, NSDictionary *parameters, NSError *__autoreleasing *error) {

    NSData *jsonData = [NSJSONSerialization dataWithJSONObject:parameters options:NSJSONWritingPrettyPrinted error:nil];
    NSString *argString = [[NSString alloc] initWithData:jsonData encoding:NSUTF8StringEncoding];
    return argString;
}];

[requestOperationManager POST:urlString parameters:parameters timeoutInterval:kRequestTimeoutInterval success:^(AFHTTPRequestOperation *operation, id responseObject) {

    if (success)
        success(responseObject);

} failure:^(AFHTTPRequestOperation *operation, NSError *error) {

    if (failure)
        failure(error);
}];

Answer 3

检查那个方便方法(POST:参数:成功:失败)是在做什么,并自己动手来获取对实际NSMutableRequest对象的访问权限.

我正在使用AFHTTPSessionManager而不是AFHTTPRequestOperation但我想这个机制是类似的.

这是我的解决方案:

1. 设置会话管理器(标题等)

2. 手动创建NSMutable请求并添加我的HTTPBody,基本上是在该方便方法中复制粘贴代码.看起来像这样:

   NSMutableURLRequest *request = [manager.requestSerializer requestWithMethod:@"POST" URLString:[[NSURL URLWithString:<url string>] absoluteString] parameters:parameters];
   
   [request setHTTPBody:[self.POSTHttpBody dataUsingEncoding:NSUTF8StringEncoding]];
   __block NSURLSessionDataTask *task = [manager dataTaskWithRequest:request completionHandler:^(NSURLResponse * __unused response, id responseObject, NSError *error) {
       if (error) {
          // error handling
       } else {
           // success
     }
   }];
   
   [task resume];