一.导入AFNetworking框架

二.将url的配置封装封装起来（后面使用就不用重复创建，只用导入RequestNetWorkTool.h 头文件就可直接使用）

1. .h文件中导入AFNetworking.h并初始化 带基础URL 和 不带基础信息的URL

#import#import "AFNetworking.h"

@interface RequestNetWorkTool :AFHTTPSessionManager

+(instancetype)requestNetWorkWithBaseURL;

+(instancetype)requestNetWorkWithOutURL;

@end

2. .m文件中实现两个方法

//带基础信息的的URL

+(instancetype)requestNetWorkWithBaseURL {

static RequestNetWorkTool *instance = nil;

static dispatch_once_t onceToken;

dispatch_once(&onceToken, ^{

//创建一个baseURL

NSURL *baseURL = [NSURL URLWithString:@"http://c.3g.163.com"];

//设置配置信息

NSURLSessionConfiguration *configuration = [NSURLSessionConfiguration defaultSessionConfiguration];

instance = [[RequestNetWorkTool alloc] initWithBaseURL:baseURL sessionConfiguration:configuration];

instance.responseSerializer = [AFJSONResponseSerializer serializerWithReadingOptions :NSJSONReadingMutableLeaves];

//设置响应的数据类型

instance.responseSerializer.acceptableContentTypes = [NSSet setWithObjects:@"text/html",@"text/json", @"text/javascript", @"application/json", @"application/xml", @"text/plain", nil];

});

return instance;

}

---

//不带基础信息的URL

+(instancetype)requestNetWorkWithOutURL{

static RequestNetWorkTool *instance=nil;

static dispatch_once_t onceToken;

dispatch_once(&onceToken, ^{

//设置配置信息

NSURLSessionConfiguration *configuration=[NSURLSessionConfiguration defaultSessionConfiguration];

instance=[[RequestNetWorkTool alloc]initWithSessionConfiguration:configuration];

//设置响应数据类型

instance.responseSerializer.acceptableContentTypes=[NSSet setWithObjects:@"text/html",@"text/json", @"text/javascript", @"application/json", @"application/xml", @"text/plain", nil];

});

return instance;

}

3.需要使用url获取数据是就导入封装的头文件

NSString *url=@"http://c.m.163.com/nc/article/B8R8TF7N00014Q4P/full.html";

[[RequestNetWorkTool requestNetWorkWithOutURL]GET:url parameters:nil progress:nil success:^(NSURLSessionDataTask * _Nonnull task, id  _Nullable responseObject) {

NSLog(@"成功");

NSDictionary *List=(NSDictionary *)responseObject;   //接收响应回来的值

。。。。。。后面就是经过需求分析响应值，例：

NSArray *data=List[@"data"][@"data"];

NSLog(@"data=%ld",data.count);

for (NSDictionary *dic in data) {

NSArray *data=List[@"data"][@"data"];

firstListModel *model=[firstListModel firstModelWithDic:dic[@"group"]];

NSLog(@"%@",model.share_count);

}

} failure:^(NSURLSessionDataTask * _Nullable task, NSError * _Nonnull error) {

NSLog(@"失败");

}];