ios 从URL中截取所包含的参数,而且以字典的形式返回和参数字典转URL

//字典转连接（参数）

- (NSString *)keyValueStringWithDict:(NSDictionary *)dict

{ if (dict == nil) { return nil; } NSMutableString *string = [NSMutableString stringWithString:@"?"]; [dict enumerateKeysAndObjectsUsingBlock:^(id key, id obj, BOOL *stop) { [string appendFormat:@"%@=%@&",key,obj]; }]; if ([string rangeOfString:@"&"].length) { [string deleteCharactersInRange:NSMakeRange(string.length - 1, 1)]; } return string; } //连接转字典 （参数） -(NSDictionary *)dictionaryWithUrlString:(NSString *)urlStr { if (urlStr && urlStr.length && [urlStr rangeOfString:@"?"].length == 1) { NSArray *array = [urlStr componentsSeparatedByString:@"?"]; if (array && array.count == 2) { NSString *paramsStr = array[1]; if (paramsStr.length) { NSMutableDictionary *paramsDict = [NSMutableDictionary dictionary]; NSArray *paramArray = [paramsStr componentsSeparatedByString:@"&"]; for (NSString *param in paramArray) { if (param && param.length) { NSArray *parArr = [param componentsSeparatedByString:@"="]; if (parArr.count == 2) { [paramsDict setObject:parArr[1] forKey:parArr[0]]; } } } return paramsDict; }else{ return nil; } }else{ return nil; } }else{ return nil; } }

 

//特殊连接解析不了 。  'https://wwww.baidu.com/#/sdffff?name=sdfff&pass=dddff'
/**
 获取url的全部参数
 @param url 须要提取参数的url
 @return NSDictionary
 */
-(NSDictionary *) parameterWithURL:(NSURL *) url {
 
    NSMutableDictionary *parm = [[NSMutableDictionary alloc]init];
 
    //传入url建立url组件类
    NSURLComponents *urlComponents = [[NSURLComponents alloc] initWithString:url.absoluteString];
 
    //回调遍历全部参数，添加入字典
    [urlComponents.queryItems enumerateObjectsUsingBlock:^(NSURLQueryItem * _Nonnull obj, NSUInteger idx, BOOL * _Nonnull stop) {
        [parm setObject:obj.value forKey:obj.name];
    }];
 
    return parm;
}