iphone - 无法在 AFNetworking 客户端 IOS 5/6 中维护 session

Question

您好，我在 IOS 应用程序中使用 AFNetworking，但无法维持 session 。我正在使用 AFNetworking 客户端并在对服务器的所有请求中使用它。

我已经解决了以下问题:How to manage sessions with AFNetworking ，但我不打算操纵 cookie 或 session 。我打算在应用程序的整个生命周期中实现一个 session 。

我的AFNetworking客户端的.m如下

<p></p>

<pre><code>@implementation MyApiClient


+(MyApiClient *)sharedClient {
    static MyApiClient *_sharedClient = nil;
    static dispatch_once_t oncePredicate;
    dispatch_once(&oncePredicate, ^{

        _sharedClient = [[MyApiClient alloc] initWithBaseURL:[GlobalParams sharedInstance].baseUrl];
    });
    return _sharedClient;
}

-(id)initWithBaseURL:(NSURL *)url {
    self = [super initWithBaseURL:url];
    if (!self) {
        return nil;
    }
    [self registerHTTPOperationClass:[AFJSONRequestOperation class]];
    [AFJSONRequestOperation addAcceptableContentTypes:[NSSet setWithObject:@"text/html"]];
    self.parameterEncoding = AFFormURLParameterEncoding;

    return self;

}
@end
</code></pre>

<p></p>

我通过调用“- (void)searchBarSearchButtonClicked:(UISearchBar *)search”向服务器发出以下请求 -->>

<p></p>

<pre><code>NSString *path = [NSString stringWithFormat:@"mobile"];
    NSURLRequest *request = [[MyApiClient sharedClient] requestWithMethod:@"GET" path:path parameters:@{@"q":search.text}];

    AFJSONRequestOperation *operation = [AFJSONRequestOperation JSONRequestOperationWithRequest:request
                                                                                        success:^(NSURLRequest *request,
                                                                                                  NSHTTPURLResponse *response, id json) {
        // code for successful return goes here
        NSLog(@"search feed %@", json);
        search_feed_json = [json objectForKey:@"searchFeed"];

        if (search_feed_json.count > 0) {
            //<#statements-if-true#>


            show_feed_json = search_feed_json;


            //reload table view to load the current non-empty activity feed into the table
            [self.tableView reloadData];

        } else {
            //<#statements-if-false#>
            NSLog(@"Response: %@", @"no feed");
        }


    } failure :^(NSURLRequest *request, NSHTTPURLResponse *response, NSError *error, id JSON) {
        // code for failed request goes here
        NSLog(@"nops : %@", error);
    }];

    [operation start];
</code></pre>

<p></p>

任何人都可以指导我或指出我错在哪里吗？任何帮助，将不胜感激。提前致谢。

编辑::

我在以下帖子中找到了答案:https://stackoverflow.com/a/14405805/1935921

我在 GlobalParams 类中初始化了答案中列出的方法，其中包含所有全局参数和方法。当应用程序登录且服务器发送 Cookie 时，我调用“saveCookies”方法。然后，每次我使用“loadCookies”方法发出任何后续请求时，都会加载这些 cookie。代码如下:

GlobalParams.h

<p></p>

<pre><code>#import <Foundation/Foundation.h>


@interface GlobalParams : NSObject

// Your property settings for your variables go here
// here's one example:

@property (nonatomic, assign) NSURL *baseUrl;


// This is the method to access this Singleton class
+ (GlobalParams *)sharedInstance;

- (void)saveCookies;
- (void)loadCookies;

@end
</code></pre>

<p></p>

GlobalParams.m

<p></p>

<pre><code>    #import "GlobalParams.h"


    @implementation GlobalParams

    @synthesize myUserData,baseUrl;

    + (GlobalParams *)sharedInstance
    {
        // the instance of this class is stored here
        static GlobalParams *myInstance = nil;

        // check to see if an instance already exists
        if (nil == dronnaInstance) {
            myInstance  = [[[self class] alloc] init];


            myInstance.baseUrl = [NSURL URLWithString:@"http://www.test.dronna.com/"];

        }
        // return the instance of this class
        return myInstance;
    }


    - (void)saveCookies{

        NSData *cookiesData = [NSKeyedArchiver archivedDataWithRootObject: [[NSHTTPCookieStorage sharedHTTPCookieStorage] cookies]];
        NSUserDefaults *defaults = [NSUserDefaults standardUserDefaults];
        [defaults setObject: cookiesData forKey: @"sessionCookies"];
        [defaults synchronize];

    }

    - (void)loadCookies{

        NSArray *cookies = [NSKeyedUnarchiver unarchiveObjectWithData: [[NSUserDefaults standardUserDefaults] objectForKey: @"sessionCookies"]];
        NSHTTPCookieStorage *cookieStorage = [NSHTTPCookieStorage sharedHTTPCookieStorage];

        for (NSHTTPCookie *cookie in cookies){
            [cookieStorage setCookie: cookie];
        }

    }

@end
</code></pre>

<p></p>

然后，在定义 NSMutableRequest 后，我​​在所有服务器调用中调用“[[GlobalParams sharedInstance] saveCookies];”或“[[GlobalParams sharedInstance] loadCookies];”(取决于 cookie 中所需的读/写)。我希望这对某人有帮助。

Answer 1

我在以下帖子中找到了答案:https://stackoverflow.com/a/14405805/1935921

我在 GlobalParams 类中初始化了答案中列出的方法，其中包含所有全局参数和方法。当应用程序登录且服务器发送 Cookie 时，我调用“saveCookies”方法。然后，每次我使用“loadCookies”方法发出任何后续请求时，都会加载这些 cookie。代码如下:

GlobalParams.h

#import <Foundation/Foundation.h>


@interface GlobalParams : NSObject

// Your property settings for your variables go here
// here's one example:

@property (nonatomic, assign) NSURL *baseUrl;


// This is the method to access this Singleton class
+ (GlobalParams *)sharedInstance;

//saving cookies
- (void)saveCookies;
//loading cookies
- (void)loadCookies;

@end

GlobalParams.m

#import "GlobalParams.h"


@implementation GlobalParams

@synthesize myUserData,baseUrl;

+ (GlobalParams *)sharedInstance
{
    // the instance of this class is stored here
    static GlobalParams *myInstance = nil;

    // check to see if an instance already exists
    if (nil == dronnaInstance) {
        myInstance  = [[[self class] alloc] init];


        myInstance.baseUrl = [NSURL URLWithString:@"http://www.test.dronna.com/"];

    }
    // return the instance of this class
    return myInstance;
}


- (void)saveCookies{

    NSData *cookiesData = [NSKeyedArchiver archivedDataWithRootObject: [[NSHTTPCookieStorage sharedHTTPCookieStorage] cookies]];
    NSUserDefaults *defaults = [NSUserDefaults standardUserDefaults];
    [defaults setObject: cookiesData forKey: @"sessionCookies"];
    [defaults synchronize];

}

- (void)loadCookies{

    NSArray *cookies = [NSKeyedUnarchiver unarchiveObjectWithData: [[NSUserDefaults standardUserDefaults] objectForKey: @"sessionCookies"]];
    NSHTTPCookieStorage *cookieStorage = [NSHTTPCookieStorage sharedHTTPCookieStorage];

    for (NSHTTPCookie *cookie in cookies){
        [cookieStorage setCookie: cookie];
    }

}