iOS NSDictionary 轉Json 去掉換行去掉空格

標籤：utf8   去掉空格   sub   ret   nsarray   substring   系統   sda   gen   

//dic 轉json 如果用系統內建的會出現空格。+ (NSString *)returnJSONStringWithDictionary:(NSDictionary *)dictionary{        //系統內建        //    NSError * error;        //    NSData * jsonData = [NSJSONSerialization dataWithJSONObject:dictionary options:kNilOptions error:&error];        //    NSString * jsonStr = [[NSString alloc] initWithData:jsonData encoding:NSUTF8StringEncoding];        //自訂        NSString *jsonStr = @"{";        NSArray * keys = [dictionary allKeys];        for (NSString * key in keys) {                jsonStr = [NSString stringWithFormat:@"%@\"%@\":\"%@\",",jsonStr,key,[dictionary objectForKey:key]];            }        jsonStr = [NSString stringWithFormat:@"%@%@",[jsonStr substringWithRange:NSMakeRange(0, jsonStr.length-1)],@"}"];        return jsonStr;    }

 

iOS NSDictionary 轉Json 去掉換行去掉空格