网络请求封装

1.网络请求类

我把常用的网络请求方法都封装好了，你只需要写自己的接口，传递apiName，params等参数就可以。

#pragma mark ios请求方式//ios自带的get请求方式-(void)getddByUrlPath:(NSString *)path andParams:(NSString *)params andCallBack:(CallBack)callback{    if (params) {        [path stringByAppendingString:[NSString stringWithFormat:@"?%@",params]];    }        NSString*  pathStr = [path  stringByAddingPercentEscapesUsingEncoding:NSUTF8StringEncoding];    NSLog(@"url:%@",pathStr);    NSURL *url = [NSURL URLWithString:pathStr];        NSMutableURLRequest *request = [NSMutableURLRequest requestWithURL:url];        NSURLSession *session = [NSURLSession sharedSession];    NSURLSessionDataTask *task = [session dataTaskWithRequest:request completionHandler:^(NSData *data, NSURLResponse *response, NSError *error) {        dispatch_async(dispatch_get_main_queue(), ^{                                    id jsonData = [NSJSONSerialization JSONObjectWithData:data options:0 error:Nil];            NSLog(@"%@",jsonData);                        if ([jsonData  isKindOfClass:[NSArray  class]]) {                NSDictionary*  dic = jsonData[0];                                callback(dic);                                            }else{                callback(jsonData);            }                    });                    }];    //开始请求    [task resume];}//ios自带的post请求方式-(void)postddByByUrlPath:(NSString *)path andParams:(NSDictionary*)params andCallBack:(CallBack)callback{        NSURL *url = [NSURL URLWithString:path];        NSMutableURLRequest *request = [NSMutableURLRequest requestWithURL:url];    [request setHTTPMethod:@"POST"];    NSError*  error;        if ([NSJSONSerialization isValidJSONObject:params]) {        NSData *jsonData = [NSJSONSerialization dataWithJSONObject:params options:NSJSONWritingPrettyPrinted error:&error];        [request  setHTTPBody:jsonData];                        NSURLSession *session = [NSURLSession sharedSession];        NSURLSessionDataTask *task = [session dataTaskWithRequest:request completionHandler:^(NSData *data, NSURLResponse *response, NSError *error) {            dispatch_async(dispatch_get_main_queue(), ^{                NSString*  str = [[NSString   alloc]initWithData:data encoding:NSUTF8StringEncoding];                NSLog(@"..........%@",str);                id  jsonData = [NSJSONSerialization JSONObjectWithData:data options:0 error:Nil];                if ([jsonData  isKindOfClass:[NSArray  class]]) {                    NSDictionary*  dic = jsonData[0];                                        callback(dic);                                                        }else{                    callback(jsonData);                }            });                    }];        //开始请求        [task resume];            }}#pragma mark 第三方请求方式//第三方的get请求方式-(void)getByApiName:(NSString *)apiName andParams:(id)params andCallBack:(CallBack)callback{    [self.manager GET:apiName parameters:params success:^(AFHTTPRequestOperation *operation, id responseObject) {                callback(responseObject);            } failure:^(AFHTTPRequestOperation *operation, NSError *error) {                callback(nil);    }];    }//第三方的post请求方式-(void)postByApiName:(NSString *)apiName andParams:(id)params andCallBack:(CallBack)callback{        [self.manager POST:apiName parameters:params success:^(AFHTTPRequestOperation *operation, id responseObject) {                callback(responseObject);    } failure:^(AFHTTPRequestOperation *operation, NSError *error) {                callback(nil);            }];    }//第三方的post上传图片请求方式-(void)postImageByApiName:(NSString *)apiName andParams:(id)params  andImagesArray:(NSArray*)images andBack:(CallBack)callback{    [self.manager POST:apiName parameters:params constructingBodyWithBlock:^(id formData) {                for (int i = 0; i<images.count; i++) {                        NSData*  imageData = UIImageJPEGRepresentation(images[i], 0.8);            NSString*  name =nil;            if (images.count == 1) {                name = @"imageFile";            }else{                name = [NSString   stringWithFormat:@"file%d",i+1];            }            [formData appendPartWithFileData:imageData name:name fileName:[NSString stringWithFormat:@"image.jpg"] mimeType:@"image/jpeg"];        }            } success:^(AFHTTPRequestOperation *operation, id responseObject) {                callback(responseObject);            } failure:^(AFHTTPRequestOperation *operation, NSError *error) {        callback(nil);            }];}-(void)postImageByApiName:(NSString *)apiName  andImageName:(NSString*)imageName  andParams:(id)params  andImage:(UIImage*)image andBack:(CallBack)callback{    NSData*  imageData = UIImageJPEGRepresentation(image, 0.8);        [self.manager POST:apiName parameters:params constructingBodyWithBlock:^(id formData) {        [formData appendPartWithFileData:imageData name:imageName fileName:[NSString stringWithFormat:@"image.jpg"] mimeType:@"image/jpeg"];    } success:^(AFHTTPRequestOperation *operation, id responseObject) {        callback(responseObject);    } failure:^(AFHTTPRequestOperation *operation, NSError *error) {                callback(nil);            }];}

以天气查询为例，自己写个接口，选择请求方式：

-(void)getWeatherCallBack:(CallBack)callback{       //选择需要的请求方式，我们采用非第三方的get请求，具体情况选择不同的请求方式，都是异步请求    [self getddByUrlPath:@"http://m.weather.com.cn/data/101190101.html" andParams:nil andCallBack:^(id obj) {                //json解析        weather* weatherInfo = [WTParseWeather parseWeatherByWeatherDic:obj];        //返回解析后的数据        callback(weatherInfo);    }];      }

2 解析类，这个不同的数据要不同的解析类，自己写，这个是天气的例子：

+(weather *)parseWeatherByWeatherDic:(NSDictionary *)Dic{    NSDictionary* weatherInfoDic = [Dic objectForKey:@"weatherinfo"];        weather* weaInfo = [[weather alloc]init];        weaInfo.city = [weatherInfoDic objectForKey:@"city"];    weaInfo.date = [weatherInfoDic objectForKey:@"date_y"];    weaInfo.week = [weatherInfoDic objectForKey:@"week"];    weaInfo.wind = [weatherInfoDic objectForKey:@"wind1"];    weaInfo.weather = [weatherInfoDic objectForKey:@"weather1"];    weaInfo.tip = [weatherInfoDic objectForKey:@"index"];        return weaInfo;}

3 在请求网络的地方请求

- (void)getNetData{    [[WTNetWorkingManager shareWTNetWorkingManager]getWeatherCallBack:^(id obj) {                weather* weaInfo = obj;                self.weatherInfo = weaInfo;                [self giveValue];    }];}- (void)giveValue{    self.city.text = self.weatherInfo.city;    self.date.text = self.weatherInfo.date;    self.week.text = self.weatherInfo.week;    self.wind.text = self.weatherInfo.wind;    self.weather.text = self.weatherInfo.weather;    self.tips.text = self.weatherInfo.tip;    self.tips.userInteractionEnabled=NO;}

源码：https://github.com/wangdachui