ios - 使用 NSMutableURLRequest 的字符串请求

Question

我必须向服务器发送 base64 字符串请求。

代码:

NSString *body = [NSString stringWithFormat:@"[\"Login\",{\"password\":\"%@\",\"username\":\"%@\",\"ip\":\"%@\",\"login_type\":\"IOS\",\"short_name\":null}]",self.mPassword.text,self.mUsername.text,[Settings getIPAddress]];

NSLog(@"login %@",body);

NSMutableURLRequest *request = [NSMutableURLRequest requestWithURL:[NSURL URLWithString:[Settings getLoginUrl]]];
NSData *postData = [body dataUsingEncoding:NSDataBase64Encoding64CharacterLineLength allowLossyConversion:YES];

[request setHTTPBody:postData];
[request setHTTPMethod:@"POST"];
NSString *postLength = [NSString stringWithFormat:@"%lu", (unsigned long)[postData length]];
[request setValue:postLength forHTTPHeaderField:@"Content-Length"];

但是它向服务器发送了一个空字符串。为什么这样？我希望将 base64 字符串作为请求发送到服务器。

更新:

NSString *body = [NSString stringWithFormat:@"[\"Login\",{\"password\":\"%@\",\"username\":\"%@\",\"ip\":\"%@\",\"login_type\":\"IOS\",\"short_name\":null}]",self.mPassword.text,self.mUsername.text,[Settings getIPAddress]];



        NSMutableURLRequest *request = [NSMutableURLRequest requestWithURL:[NSURL URLWithString:[Settings getLoginUrl]]];
        NSLog(@"%@",[Settings getLoginUrl]);
       NSData *postData = [body dataUsingEncoding: NSUTF8StringEncoding];
        NSString *base64EncodedStr = [postData base64EncodedStringWithOptions:0];
        NSData *base64EncodedData = [[NSData alloc] initWithBase64EncodedString:base64EncodedStr options:0];
        [request setHTTPBody:base64EncodedData];
        [request setHTTPMethod:@"POST"];
        NSString *postLength = [NSString stringWithFormat:@"%lu", (unsigned long)[base64EncodedData length]];
        [request setValue:postLength forHTTPHeaderField:@"Content-Length"];

        [[[NSURLSession sharedSession] dataTaskWithRequest:request completionHandler:^(NSData *data,NSURLResponse *response,NSError *connectionError)
          {
              if ([data length] > 0 && connectionError == nil)
              {
                  [self receivedLoginData:data];

              }
              else if ([data length] == 0 && connectionError == nil)
              {
                  [self emptyReply];
              }
              else if (connectionError != nil && connectionError.code == NSURLErrorTimedOut)
              {
                  [self timedOut];
              }
              else if (connectionError != nil)
              {
                  [self downloadError:connectionError];
              }
          }]resume];

Answer 1

NSDataBase64Encoding64CharacterLineLength 是一个 NSDataBase64EncodingOption 而不是 Base64Encoding。

你需要使用例如this solution