判断两个请求结束。

    #pragma mark -- request
    -(void)getProductDataWithIsReloadData:(BOOL)isReloadData
    {
dispatch_queue_t dispatchQueue = dispatch_queue_create("ted.queue.next", DISPATCH_QUEUE_CONCURRENT);
dispatch_group_t dispatchGroup = dispatch_group_create();
dispatch_group_async(dispatchGroup, dispatchQueue, ^(){
    //请求1
    [self getNewUserProductData];
    NSLog(@"dispatch-1");
});
dispatch_group_async(dispatchGroup, dispatchQueue, ^(){
    //请求2
    [self getInvestmentDataWithIsReloadData:YES];
    NSLog(@"dspatch-2");
});
dispatch_group_notify(dispatchGroup, dispatch_get_main_queue(), ^(){
    [self.projectTableView reloadDataWithProductDataAry:self.productDataAry
                                     productNewUserData:self.productNewUserData];
    [self.projectTableView.mj_header endRefreshing];
    [self.projectTableView.mj_footer endRefreshing];
});
    }

---

    -(void)getNewUserProductData
    {
dispatch_semaphore_t sema = dispatch_semaphore_create(0);
NSDictionary *parameters = @{@"isRecommend":@"",
                             @"status":@"",
                             @"businessType":@"1",
                             @"minDeadline":@"0",
                             @"maxDeadline":@"0",
                             @"minRate":@"0",
                             @"maxRate":@"0"};
WEAK_SELF
[NetManager requestWithUrlString:Main_URL method:My_New parameters:parameters finished:^(NetModel *obj) {
    // 请求成功
    //        if ([obj.resultCode isEqualToString:@"SUCCESS"]) {
        NSDictionary * dataArrayDic = [obj getResultDictionary];
        NSError *err = nil;
        weakSelf.productNewUserData = [[JYProductModel alloc] initWithDictionary:dataArrayDic error:&err];
        NSLog(@"%@", dataArrayDic);
        
    //        }else{
    //            [self errorPrompt:1.5 promptStr:[obj getResultMessage]];
    //        }
    dispatch_semaphore_signal(sema);
} failed:^(NetModel *obj) {
    dispatch_semaphore_signal(sema);
}];
//若计数为0则一直等待
dispatch_semaphore_wait(sema, DISPATCH_TIME_FOREVER);
    }