AFNetworking使用详解
导语:
众所周知,AFNetworking是目前IOS开发中非常受欢迎的第三方网络通信类库,同时AFNetworking对苹果官方NSURLConnection和NSURLSession进行了封装,使用起来可以说是简单的"令人发指".
AFNetworking有关请求与响应的信息
请求:(序列化)
AFURLRequestSerialization
AFHTTPRequestSerializer(默认)传输的就是二进制
AFJSONRequestSerializer传输入的二进制是一个JSON格式的二进制 ,只有NSArray, NSDictionay；
AFPropertyListRequestSerializer 传输的到时候是一个plist,这个不玩意儿不用,因为他不通用
响应:(反序列化)
AFHTTPResponseSerializer//返回的就一个纯洁的二进制
AFJSONResponseSerializer(默认)返回的是一个JSON格式的二进制,并且AFN帮我们自动序列化成了字典或是数组
AFXMLParserResponseSerializerXMLParser
AFXMLDocumentResponseSerializer (Mac OS X) 不适合我们的iOS
AFPropertyListResponseSerializer plist
AFImageResponseSerializer //国片
AFCompoundResponseSerializer //混合
使用AFNetworking
GET方法
//1.首先创建一个管理者
AFHTTPRequestOperationManager *manager = [AFHTTPRequestOperationManager manager];
//2.发送请求
//在使用AFN的时候,直接传递我们url的字符串就可以了
//AFN在反序列化的时候,默认是帮我们按照JSON的格式去解析
[ manager GET: @"http://localhost/test.json" parameters: nil success: ^(AFHTTPRequestOperation * Nonnull operation ,id_Nonnull responseObject) {
//第一个参数 operation 操作
//第二个参数 responseObject
NSLog(@"%@---%@",responseObject,[responseObject class]);
} failure: ^(AFHTTPRequestOperation * _Nullable operation ,NSError* Nonnull error) {
NSLog(@"%@",error);
}];
POST方法:
// 1.创建一个基于NSURLConnection的管理
AFHTTPRequestOperationManager *manager = [AFHTTPRequestOperationManager manager ];
//2.发送我们的POST请求
//用户名密码
NSDictionary *param = @ { @"username": @"admin" , @"password": @"123" };
//登陆到得网址
[ manager POST: @"http://localhost/login.php" parameters:params success:^(AFHTTPRequestOperation * _Nonnull operation,id_Nonnull responseObject) { //请求成功
NSLog(@"post result====%@---%@",responseObject,[responseObject class]);
} failure:^(AFHTTPRequestOperation * _Nullable operation,NSError* _Nonnull error) { //请求失败
NSLog(@"%@",error); //打印错误信息
}];
#### *AFNetworking之搭配webView使用*
注意:因为默认情况下AFNetworking的响应解析方式都是按照JOSN解析,所以我们需要修改AFNetworking的解析方式,但是为了以后使用方便,我们不在AFNetworking基础上修改,我们添加一个类继承自AFHTTPSessionManager然后创建一个单例,这样以后AFNetworking更新,我们的代码也不会因此受到影响.
首先创建NetWorkTool类,并创建单例方法
#import "AFHTTPSessionManager.h"
@interfaceNetWorkTool:AFHTTPSessionManager
//单例
+ (instancetype) sharedNetWorkTool;
@end
实现单例方法
#import "NetWorkTool.h"
@implementation NetWorkTool
staticNetWorkTool *_instance;
+ (instancetype)sharedNetWorkTool { //使用GCD
static dispatch_once_ tonceToken;
dispatch_once(&onceToken, ^{
_instance = [[NetWorkTool alloc] initWithBaseURL: nil];
_instance.responseSerializer.acceptableContentTypes = [NSSet setWithObjects: @"application/json", @"text/json", @"text/javascript", @"text/html" , nil ];
//默认情况下的响应解析方式,就是不管服务器给我们返回的是什么,都按照JSON去解析
//将默认的JSON序列化方式,改成我们最普通的二进制
_instance.responseSerializer = [AFHTTPResponseSerializer serializer];
});
return_instance;
}
@end
在控制器中拖入一个UIWebView试图,通过连线方式连接到控制器中
#import "ViewController.h"
#import "NetWorkTool.h"
@interface ViewController()
//WebView
@property (weak ,nonatomic) IBOutlet UIWebView *webView;
@end
@implementation ViewController
- (void) viewDidLoad {
[superview DidLoad];
[self loadWebView];
}
- (void) loadWebView {
//1.获取我们NetWorkTool的单例
NetWorkTool *netWorkTool = [NetWorkTool sharedNetWorkTool];
//2.发送GET请求//html
__weaktypeof(self) weakSelf = self;
[netWorkTool GET: @"http://www.baidu.com"
parameters: nil
success: ^(NSURLSessionDataTask* _Nonnull task , id_Nonnull responseObject) {
NSLog(@"result===%@----%@",responseObject , [NSThread currentThread]);
//再将我们返回的二进制,转成我们字符串,反序列化
NSString *html = [[NSString alloc] initWithData: responseObject encoding: NSUTF8StringEncoding];
//在主线程更新UI
[weakSelf.webView loadHTMLString: html baseURL: [NSURLURLWithString: @"http://www.baidu.com"]];
} failure: ^(NSURLSessionDataTask* _Nullable task,NSError* _Nonnull error) {
NSLog(@"error===%@",[error localizedDescription]);
}];
}
- (void) didReceiveMemoryWarning {
[super didReceiveMemoryWarning];
// Dispose of any resources that can be recreated.
}
@end
AFNetworking之联网检测
联网检测对应状态
AFNetworkReachabilityStatusUnknown = -1, //未知的状态
AFNetworkReachabilityStatusNotReachable = 0, //不能联网
AFNetworkReachabilityStatusReachableViaWWAN = 1, //流量
AFNetworkReachabilityStatusReachableViaWiFi = 2, //wifi
//点击屏幕的时候开始检测
- (void)touchesBegan:(NSSet *)touches withEvent:(UIEvent*)event{
[[AFNetworkReachabilityManager sharedManager] setReachabilityStatusChangeBlock: ^(AFNetworkReachabilityStatus status) {
NSLog(@"%ld",status);
}];
[[AFNetworkReachabilityManager sharedManager] startMonitoring];
}
AFNetworking之上传文件
//点击屏幕的时候上传文件
- (void)touchesBegan:(NSSet *)toucheswithEvent:(UIEvent *)event{
//获取基于NSURLSession的管理器
AFHTTPSessionManager *manager = [AFHTTPSessionManager manager];
//上传文件
NSDictionary *param=@{ @"status": @"this is test" };
[manager POST: @"http://localhost/post/upload-m.php"
parameters: param constructingBodyWithBlock: ^(id_Nonnull formData) {
//获取文件1
NSURL *url1 = [[NSBundle mainBundle ] URLForResource: @"01.jpg" withExtension: nil];
[formData appendPartWithFileURL: url1 name: @"userfile[]" fileName: @"01.jpg" mimeType: @"image/png" error: NULL ];
//获取文件2
NSURL *url2 = [[NSBundle mainBundle]URLForResource: @"02.jpg" withExtension: nil ];
NSData *data2 = [NSData dataWithContentsOfURL: url2];
//[formData appendPartWithFileData: data2 name:@"userfile[]" fileName: @"02.jpg" mimeType: @"image/png"];
//application/octet-stream通用格式
[formData appendPartWithFileData: data2 name: @"userfile[]" fileName:@"02.jpg" mimeType: @"application/octet-stream" ];
} success: ^(NSURLSessionDataTask * _Nonnull task, id_Nonnull responseObject) {
NSLog(@"responseObject--->%@",responseObject);
} failure: ^(NSURLSessionDataTask * _Nullable task, NSError * _Nonnull error) {
NSLog(@"error---->%@",error);
}];
}