终于理解POST请求和批量获取数据

来源：互联网发布：js实现加载的图片转动编辑：程序博客网时间：2024/06/10 03:20

前台界面先写好需要的参数DIC

#pragma mark 进入界面先刷新数据
-(void)loadData{

    NSDictionary *dic1 = @{@"userid":USER_ID,@"current":@"1"};//柚柚
    NSDictionary *dic2 = @{@"userid":USER_ID};//推荐同学3行
    NSDictionary *dic3 = @{@"userid":USER_ID};//推荐同学6图
    NSDictionary *dic4 = @{};//热门话题
    NSDictionary *dic5 = @{};//热门活动
    NSDictionary *dic6 = @{};//热门院校
    NSDictionary *dic7 = @{@"sex":@"1"};//秘柚
    NSDictionary *dic8 = @{};//封面人物
    NSArray *urls = @[dic1,dic2,dic3,dic4,dic5,dic6,dic7,dic8];

//类方法传人参数是数组
    [AFModel batchRequest:urls success:^(id json) {
       //请求完成执行的操作
             } faile:^{
        //失败
    }];

}

#pragma mark 以队列方式请求数据
+(void)batchRequest:(NSArray *)requestAry success:(void(^)(id json))success faile:(void(^)())fail{

    //推荐好友3行
    //推荐好友3行
    //热门话题
    //热门活动
    //热门院校
    //秘柚
    //封面人物

//URL数组

    NSArray *urlAry = @[[NSString stringWithFormat:@"%@%@",URL_ROOT212,URL_GETSUB],
                        [NSString stringWithFormat:@"%@%@",URL_ROOT212,URL_HY_SUB_3],
                        [NSString stringWithFormat:@"%@%@",URL_ROOT212,URL_HY_SUB_6],
                        [NSString stringWithFormat:@"%@%@",URL_ROOT212,URL_TOPIC],
                        [NSString stringWithFormat:@"%@%@",URL_ROOT212,URL_ACTIVITY],
                        [NSString stringWithFormat:@"%@%@",URL_ROOT212,URL_SCHOOL],
                        [NSString stringWithFormat:@"%@%@",URL_ROOT212,URL_MIYOU],
                        [NSString stringWithFormat:@"%@%@",URL_ROOT212,URL_FENGMIAN],
                        ];

    NSMutableArray *operationsAry = [NSMutableArray array];

    for (int i = 0; i<requestAry.count; i++) {
        NSString * str = @"";
        if ([requestAry[i] count] > 0) {
            for (NSString *key in [requestAry[i] allKeys]) {

        //拼接参数
                str = [str stringByAppendingFormat:@"&%@=%@",key,[requestAry[i] valueForKey:key]];
            }
        }

         //post请求的参数必须是NSData类型
        NSData *formData = [str dataUsingEncoding:NSUTF8StringEncoding];

        //gitHub上ANF文档关于批量请求的request初始化如下
        NSMutableURLRequest *request = [[AFHTTPRequestSerializer serializer] multipartFormRequestWithMethod:@"POST" URLString:urlAry[i] parameters:nil constructingBodyWithBlock:^(id<AFMultipartFormData> formData) {
        } error:nil];

        [request addValue:[MD5_Sha1 returnBase64] forHTTPHeaderField:HTTPHEADER];

//加密
[request setHTTPBody:formData];

        //operation初始化
        AFHTTPRequestOperation *operation = [[AFHTTPRequestOperation alloc] initWithRequest:request];

       //讲请求添加到请求的数组不是队列
        [operationsAry addObject:operation];
    }

   //把请求的数组作为参数调用AFN方法
    NSArray *operations = [AFURLConnectionOperation batchOfRequestOperations:operationsAry progressBlock:^(NSUInteger numberOfFinishedOperations, NSUInteger totalNumberOfOperations) {

      //请求进度
    } completionBlock:^(NSArray *operations) {

        NSMutableArray *resultAry = [NSMutableArray array];

//便利请求完成返回的数组
for(AFHTTPRequestOperation *operation in operations){

        //判断非空
            if (operation.responseObject==nil) {
                NSLog(@"请求数据为空！~ ");
            }
            else{

         // JSON化
                NSMutableArray* json = [NSJSONSerialization JSONObjectWithData:operation.responseObject options:NSJSONReadingMutableContainers error:nil];
                    [resultAry addObject:json];
            }
        }

       //将值传回界面
        success(resultAry);
        NSLog(@"All operations in batch complete");
    }];

    [[NSOperationQueue mainQueue] addOperations:operations waitUntilFinished:NO];
}

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