封装NetWorking进行网络数据解析

.h

#import 

@interface NetWorkingTool : NSObject
+(void)netWorkingWithURL:(NSString *)strURL block:(void(^)(id result))block;
@end

.m

#import "NetWorkingTool.h"

@implementation NetWorkingTool
+(void)netWorkingWithURL:(NSString *)strURL block:(void (^)(id))block{
    NSURL *url = [NSURL URLWithString:strURL];
    NSMutableURLRequest *request = [NSMutableURLRequest requestWithURL:url];
    NSURLSession *session = [NSURLSession sharedSession];
    NSURLSessionTask *task = [session dataTaskWithRequest:request completionHandler:^(NSData * _Nullable data, NSURLResponse * _Nullable response, NSError * _Nullable error) {
        dispatch_queue_t queue = dispatch_get_main_queue();
        dispatch_async(queue, ^{
            id result = [NSJSONSerialization JSONObjectWithData:data options:0 error:nil];
            block(result);
        });
    }];
    [task resume];
}
@end

在ViewController中
先引头文件

#import "NetWorkingTool.h"

在viewDidLoad中用一句话即可实现方法调用,即

[NetWorkingTool netWorkingWithURL:@"http://mrobot.pconline.com.cn/v2/cms/channels/999?pageNo=1&pageSize=20&appVersion=4.4.1" block:^(id result) {
}];
通过填进去一个网址,封装好的工具会给我们传出来一个重要的id类型参数result,我们只需分析传进去的网址的数据结构,考虑用字典/数据来接受这个result,然后再进行对应的数据解析,从而给我们的数据解析工作大大带来了方便,节省了宝贵的时间.

- (void)viewDidLoad {
    [super viewDidLoad];
      self.view.backgroundColor = [UIColor whiteColor];
    // Do any additional setup after loading the view.
    [self creatData];
    
}
-(void)creatData{
    //获取数据
   [NetWorkingTool netWorkingWithURL:@"http://mrobot.pconline.com.cn/v2/cms/channels/999?pageNo=1&pageSize=20&appVersion=4.4.1" block:^(id result) {
       //获取articleList里面的数据,存放到articleListArr数组里
       NSDictionary *dic = result;
       NSArray *articlearr = dic[@"articleList"];
       self.articleListArr = [NSMutableArray array];
       for (NSDictionary *temp in articlearr) {
           articleList *art = [[articleList alloc]init];
           [art setValuesForKeysWithDictionary:temp];
           [self.articleListArr addObject:art];
           [art release];
       }
           NSArray *focusarr = dic[@"focus"];
           self.focusArr = [NSMutableArray array];
           for (NSDictionary *temp in focusarr) {
               Focus *foc = [[Focus alloc]init];
               [foc setValuesForKeysWithDictionary:temp];
               [self.focusArr addObject:foc];
               [foc release];
           }
       
       self.hud.hidden = YES;
       [self creatView];
       [self.tableView reloadData];
     
   }];
}