當POST請求是 既包含圖片二進位制 又包含字串引數 如何用原生請求(二)
oc原生方法請求
1.oc原生請求
/*
使用NSURLSession 進行網路請求的幾個步驟
1.構造NSURL地址
2.構造請求物件 NSURLRequest
3.構造NSURLSessionConfiguration配置檔案，可選
4.構造NSURLSession網路會話物件
5.建立網路任務
6.執行網路任務，傳送網路請求
*/
NSString *boundary = @"_YJAYgDL082HLBJkC1laRbpjU5PlLgeJh_";//放入協議頭中隨機生成的字元，上傳檔案時用來作為分隔符
NSURL *url = [NSURL URLWithString:@"url"];
NSMutableURLRequest *request = [NSMutableURLRequest requestWithURL:url];
//設定分隔符,必須寫
[request setValue:[NSString stringWithFormat:@"multipart/form-data; boundary=%@",boundary] forHTTPHeaderField: @"Content-Type"];
//設定POST請求
request.HTTPMethod = @"POST";
request.timeoutInterval = 60;
//設定請求體
//cinema_id=1533
// post body
NSMutableData *body = [NSMutableData data];
NSMutableDictionary *param = [NSMutableDictionary dictionary];
[param setObject:@"value1" forKey:@"param1"];
// add params (all params are strings)
[body appendData:[[NSString stringWithFormat:@"--%@\r\n", boundary] dataUsingEncoding:NSUTF8StringEncoding]];
//pic_source文字定義的名字
[body appendData:[[NSString stringWithFormat:@"Content-Disposition: form-data; name=\"%@\"\r\n\r\n", @"param1"] dataUsingEncoding:NSUTF8StringEncoding]];
//文字內容
[body appendData:[[NSString stringWithFormat:@"%@\r\n", [param objectForKey:@"param1"]] dataUsingEncoding:NSUTF8StringEncoding]];
NSData *imageData = data;
if (imageData) {
[body appendData:[[NSString stringWithFormat:@"--%@\r\n", boundary] dataUsingEncoding:NSUTF8StringEncoding]];
//檔名字
[body appendData:[[NSString stringWithFormat:@"Content-Disposition: form-data; name=\"%@\"; filename=\"image.jpg\"\r\n", @"picture"] dataUsingEncoding:NSUTF8StringEncoding]];
//設定檔案型別
[body appendData:[@"Content-Type: image/jpeg\r\n\r\n" dataUsingEncoding:NSUTF8StringEncoding]];
[body appendData:imageData];
[body appendData:[[NSString stringWithFormat:@"\r\n"] dataUsingEncoding:NSUTF8StringEncoding]];
}
[body appendData:[[NSString stringWithFormat:@"--%@--\r\n", boundary] dataUsingEncoding:NSUTF8StringEncoding]];
[request setHTTPBody:body];
NSString *postLength = [NSString stringWithFormat:@"%lu", (unsigned long)[body length]];
//檔案大小
[request setValue:postLength forHTTPHeaderField:@"Content-Length"];
[request setURL:url];
NSURLSession *session = [NSURLSession sharedSession];
NSURLSessionDataTask *dataTask = [session dataTaskWithRequest:request completionHandler:^(NSData * _Nullable data, NSURLResponse * _Nullable response, NSError * _Nullable error) {
NSDictionary *dic = [NSJSONSerialization JSONObjectWithData:data options:NSJSONReadingMutableContainers error:nil];
NSString *jsonString = [NSString stringWithFormat:@"%@", dic];
NSLog(@"返回dic:%@",jsonString);
//獲取響應包
//將response 轉化為一個子類的HTTPURLResponse
NSHTTPURLResponse *httpResponse = (NSHTTPURLResponse *)response;
//列印狀態碼
NSLog(@"狀態碼:%li", httpResponse.statusCode);
//獲取響應頭
NSDictionary *responseHeader = httpResponse.allHeaderFields;
NSLog(@"響應頭:%@", responseHeader);
}];
//開始網路任務
[dataTask resume];
2.AFN請求
AFHTTPSessionManager *manager = [AFHTTPSessionManager manager];
// 'multipart/form-data;'
// 修改請求序列器 為json格式
manager.requestSerializer = [AFJSONRequestSerializer serializer];
// 設定請求頭裡Content-Type 為multipart/form-data;
[manager.requestSerializer setValue:@"multipart/form-data;" forHTTPHeaderField:@"Content-Type"];
// 設定響應序列器為http格式
manager.responseSerializer = [AFHTTPResponseSerializer serializer];
// 在可接受的content-Type中新增 @"text/html"
manager.responseSerializer.acceptableContentTypes = [NSSet setWithObjects:@"application/json", @"text/json", @"text/javascript",@"text/html", nil];
// 發出POST請求parameters引數填寫非二進位制字串引數
[manager POST:@"url" parameters:@{@"param1":@"value1"}constructingBodyWithBlock:^(id<AFMultipartFormData> _Nonnull formData) {
// 這裡拼接 圖片二進位制資料這個mimeType必須有
[formData appendPartWithFileData:UIImageJPEGRepresentation([UIImage imageNamed:@"123.jpg"], 1.0) name:@"picture" fileName:@"123.jpg" mimeType:@"image/jpeg"];
} progress:nil success:^(NSURLSessionDataTask * _Nonnull task, id _Nullable responseObject) {
NSLog(@"111---%@",responseObject);
NSDictionary *dic = [NSJSONSerialization JSONObjectWithData:responseObject options:NSJSONReadingMutableContainers error:nil];
NSLog(@"222---%@", dic);
} failure:^(NSURLSessionDataTask * _Nullable task, NSError * _Nonnull error) {
NSLog(@"error == %@", error);
}];