2021-12-09 iOS 字典转json字符串方法

// 字典转json字符串方法

+(NSString *)convertToJsonData:(NSDictionary *)dict

{

    NSError*error;

    NSData *jsonData = [NSJSONSerialization dataWithJSONObject:dict options:NSJSONWritingPrettyPrinted error:&error];

    NSString*jsonString;

    if(!jsonData) {

        NSLog(@"%@",error);

    }else{

        jsonString = [[NSString alloc]initWithData:jsonData encoding:NSUTF8StringEncoding];

    }

    NSMutableString *mutStr = [NSMutableString stringWithString:jsonString];

//    NSRange range = {0,jsonString.length};

//

//    //去掉字符串中的空格

//

//    [mutStr replaceOccurrencesOfString:@" " withString:@"" options:NSLiteralSearch range:range];

    NSRange range2 = {0,mutStr.length};

    //去掉字符串中的换行符

    [mutStr replaceOccurrencesOfString:@"\n" withString:@"" options:NSLiteralSearch range:range2];

    return mutStr;

}