我对同一个问题做了几个回答...但无法弄清楚这个问题..我收到了这个错误
* Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: '* +[NSJSONSerialization dataWithJSONObject:options:error:]: Invalid top-level type in JSON write'
我的代码是:
NSDictionary *loginDict=[[NSDictionary alloc] initWithObjectsAndKeys:password.text,@"password",userName.text,@"userName",nil];
NSError *error;
NSData *jsonData = [NSJSONSerialization dataWithJSONObject:loginDict options:NSJSONWritingPrettyPrinted error:&error];
if (jsonData) {
NSString *jsonString = [[NSString alloc] initWithData:jsonData encoding:NSUTF8StringEncoding];
} else {
NSLog(@"Got an error: %@", error);
}
AFHTTPRequestOperationManager *manager = [AFHTTPRequestOperationManager manager];
manager.requestSerializer = [AFJSONRequestSerializer serializer];
[manager.requestSerializer setTimeoutInterval:20];
[manager.requestSerializer setValue:@"application/json" forHTTPHeaderField:@"Accept"];
[manager.requestSerializer setValue:@"application/json" forHTTPHeaderField:@"Content-Type"];
manager.responseSerializer = [AFJSONResponseSerializer serializer];
manager.responseSerializer = [AFJSONResponseSerializer serializerWithReadingOptions:NSJSONReadingAllowFragments];
[manager POST:baseUrlLogin parameters:jsonString
success:^(AFHTTPRequestOperation *operation, id responseObject) {
NSLog(@"JSON: %@", responseObject);
} failure:^(AFHTTPRequestOperation *operation, NSError *error) {
NSLog(@"Error: %@", error);
}];
最佳答案
试试这个
在你的调用中直接传递loginDict
并检查
manager.requestSerializer = [AFJSONRequestSerializer serializer];
/*
[manager.requestSerializer setTimeoutInterval:20];
[manager.requestSerializer setValue:@"application/json" forHTTPHeaderField:@"Accept"];
[manager.requestSerializer setValue:@"application/json" forHTTPHeaderField:@"Content-Type"];
manager.responseSerializer = [AFJSONResponseSerializer serializer];
manager.responseSerializer = [AFJSONResponseSerializer serializerWithReadingOptions:NSJSONReadingAllowFragments];
*/
[manager POST:baseUrlLogin parameters: loginDict
success:^(AFHTTPRequestOperation *operation, id responseObject) {
NSLog(@"JSON: %@", responseObject);
} failure:^(AFHTTPRequestOperation *operation, NSError *error) {
NSLog(@"Error: %@", error);
}];
关于ios - AFNetworking 发送 JSON 作为 POST 请求的参数,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/37110433/