[英]objective-c HTTP POST send request as form
我已经使用POST方法在应用程序上调用带有标头值和参数的API主体。 服务器仅接受以下格式的表单
"form": {
"action" : "login",
"user" : "311"
},
当我们使用代码
NSString *urlString = [NSString stringWithFormat:@"%@", url_string];
NSURL *url = [NSURL URLWithString:urlString];
NSMutableURLRequest *request = [NSMutableURLRequest requestWithURL:url];
NSError *error;
NSDictionary *parameters = @{@"action": @"login", @"user": @"311"};
NSString *params = [self makeParamtersString:parameters withEncoding:NSUTF8StringEncoding];
NSData *jsonData2 = [params dataUsingEncoding:NSUTF8StringEncoding];
[request setHTTPMethod:@"POST"];
[request setValue:@"application/json" forHTTPHeaderField:@"Accept"];
[request setValue:@"application/x-www-form-urlencoded" forHTTPHeaderField:@"Content-Type"];
[request setHTTPBody: jsonData2];
[NSURLConnection sendAsynchronousRequest:request queue:[NSOperationQueue mainQueue] completionHandler:ourBlock];
我的表格看起来像这样
form = {
action = login;
user = 311;
};
您能否产生想要的结果? 您能帮我解决这个问题吗?
如何更改这样的参数。
NSDictionary *parameters = @{@"form":@{@"action": @"login", @"user": @"311"}};
NSData *jsonData = [NSJSONSerialization dataWithJSONObject:parameters options:NSJSONWritingPrettyPrinted error:nil];
[request setHTTPMethod:@"POST"];
[request setValue:@"application/json" forHTTPHeaderField:@"Accept"];
[request addValue:@"application/json" forHTTPHeaderField:@"Content-Type"];
[request setHTTPBody: jsonData];
[NSURLConnection sendAsynchronousRequest:request queue:[NSOperationQueue mainQueue] completionHandler:ourBlock];
尝试这个
NSURL * url = [NSURL URLWithString:@"%@",url_string];
NSURLSessionConfiguration * config = [NSURLSessionConfiguration defaultSessionConfiguration];
NSURLSession * session = [NSURLSession sessionWithConfiguration:config];
NSMutableURLRequest *request = [[NSMutableURLRequest alloc] initWithURL:url];
request.HTTPMethod = @"POST";
NSDictionary * paramters = [NSDictionary dictionaryWithObjectsAndKeys:@"login",@"action",@"311",@"user", nil]; // [NSDictionary dictionaryWithObjectsAndKeys:@"value",@"key", nil];
NSDictionary *params = @{@"form": paramters};
NSError *err = nil;
NSData *jsonData2 = [NSJSONSerialization dataWithJSONObject:params options:0 error:&err];
尝试
NSString *urlString = [NSString stringWithFormat:@"%@", url_string];
NSURL *url = [NSURL URLWithString:urlString];
NSMutableURLRequest *request = [NSMutableURLRequest requestWithURL:url];
NSError *error;
NSDictionary *parameters = @{@"action": @"login", @"user": @"311"};
NSData *jsonData = [NSJSONSerialization dataWithJSONObject: parameters options:0 error:&error];
[request setHTTPMethod:@"POST"];
[request setValue:@"application/json" forHTTPHeaderField:@"Accept"];
[request setValue:@"application/x-www-form-urlencoded" forHTTPHeaderField:@"Content-Type"];
[request setHTTPBody: jsonData];
[NSURLConnection sendAsynchronousRequest:request queue:[NSOperationQueue mainQueue] completionHandler:ourBlock];
NSError *error;
NSDictionary *parameters = @{@"form": @{@"action": @"login", @"user": @"311"}};
NSData *jsonData = [NSJSONSerialization dataWithJSONObject:parameters
options:NSJSONWritingPrettyPrinted error:&error];
request.HTTPBody = jsonData
//Using NSURLSession is better option than using NSURLConnection
NSURLSession *session = [NSURLSession sharedSession];
NSURLSessionDataTask *dataTask = [session dataTaskWithRequest:request completionHandler:^(NSData * _Nullable data, NSURLResponse * _Nullable response, NSError * _Nullable error) {
NSHTTPURLResponse* respHttp = (NSHTTPURLResponse*) response;
if (!error && respHttp.statusCode == 200) {
NSDictionary* respondData = [NSJSONSerialization JSONObjectWithData:data options:NSJSONReadingAllowFragments error:&error];
NSLog(@"%@", respondData);
} else{
NSLog(@"%@", error);
}
}];
[dataTask resume];
如果需要base64编码,请尝试此
NSMutableDictionary *param = [@{@"form":@{@"action": @"login", @"user": @"311"}} mutableCopy];
NSMutableURLRequest *request = [[NSMutableURLRequest alloc] initWithURL:serviceURL];
NSString *strEncoded = [self encodeParameters:param];
NSData *requestData = [strEncoded dataUsingEncoding:NSUTF8StringEncoding];
[request setHTTPBody:requestData];
[request setValue:[NSString stringWithFormat:@"%lu",(unsigned long)requestData.length] forHTTPHeaderField:@"Content-Length"];
[request setHTTPMethod:@"POST"];
[request setValue:@"application/x-www-form-urlencoded" forHTTPHeaderField:@"Content-Type"];
[request setValue:@"application/json" forHTTPHeaderField:@"Accept"];
// Function encodeParameters
+(NSString *)encodeParameters:(NSDictionary *)dictEncode
{
// Encode character set as per BASE64
NSCharacterSet *URLBase64CharacterSet = [[NSCharacterSet characterSetWithCharactersInString:@"/+=\n"] invertedSet];
NSMutableString *stringEncode = [[NSMutableString alloc] init];
NSArray *allKeys = [dictEncode allKeys];
for (int i = 0;i < allKeys.count; i++) {
NSString *key = [allKeys objectAtIndex:i];
if([dictEncode valueForKey:key])
{
[stringEncode appendFormat:@"%@=%@",key,[[dictEncode valueForKey:key] stringByAddingPercentEncodingWithAllowedCharacters:URLBase64CharacterSet]];
}
if([allKeys count] > i+1)
{
[stringEncode appendString:@"&"];
}
}
return stringEncode;
}
尝试这个,
NSString *parameters = @"\"form\":{\"action\" : \"login\", \"user\" : \"311\"}";
NSData *jsonData2 = [parameters dataUsingEncoding:NSUTF8StringEncoding];
[request setHTTPMethod:@"POST"];
[request setValue:@"application/json" forHTTPHeaderField:@"Accept"];
[request setValue:@"application/x-www-form-urlencoded" forHTTPHeaderField:@"Content-Type"];
[request setHTTPBody: jsonData2];
[NSURLConnection sendAsynchronousRequest:request queue:[NSOperationQueue mainQueue] completionHandler:ourBlock];
NSString *urlString = [NSString stringWithFormat:@"URL"];
NSDictionary *para= @{@"action": @"login", @"user": @"311"};
AFHTTPRequestOperationManager *manager = [AFHTTPRequestOperationManager manager];
manager.responseSerializer = [AFJSONResponseSerializer serializer];
manager.responseSerializer.acceptableContentTypes = [NSSet setWithObject:@"text/html"];
[manager POST:urlString parameters:para success:^(AFHTTPRequestOperation *operation, id responseObject) {
NSLog(@"JSON: %@", responseObject);
} failure:^(AFHTTPRequestOperation *operation, NSError *error) {
NSLog(@"Error: %@", error);
}];
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