iOS 自己封装的网络请求，json解析的类

最新推荐文章于 2022-10-16 18:24:45 发布

ShineYangGod

最新推荐文章于 2022-10-16 18:24:45 发布

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本文介绍了一个iOS应用中网络请求的封装方法，包括自定义HTTP请求和使用AFNetworking库的示例。通过封装，开发者可以更方便地进行网络交互并解析响应数据。

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基本上所有的APP都会涉及网络这块，不管是用AFNetWorking还是自己写的http请求，整个网络框架的搭建很重要。

楼主封装的网络请求类，包括自己写的http请求和AFNetWorking的请求，代码简单，主要是框架搭建。简单来说，就是一个请求类，一个解析类，还有若干数据类。

以下代码以公开的天气查询api为例：

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;
}
我封装的类可以去我github拿：https://github.com/wangdachui