衆所周知,蘋果搞的一套框架NSContention發送請求與接收請求的方式十分繁瑣。操作起來很不方便。不僅要做區分各種請求設置各種不同的參數,而且還要經常在多線程裏操作,同時還要對請求與返回的數據做各種序列化的操作,同時還要考慮請求數據的安全等一堆問題。
一、早前的幾個網絡框架
1、ASI框架: HTTP終結者.很牛, 但是有BUG, 已經停止更新.
2、MKNetworkKit (印度人寫的).
3、AFN一直還在更新.
AFNetworking的出現:MAC/iOS設計的一套網絡框架.(爲了簡化網絡操作)
*AFN專注與網絡數據傳輸,以及網絡中多線程的處理.
二、AFNetworking的使用
1、AFN特性 :
*登錄傳參數時,傳遞字典即可.(鍵名爲參數名,鍵值爲參數值).
*自動到子線程中執行,執行完後返回主線程.
*返回的結果自動序列化爲NSDictionary.
2、使用AFN注意 :
*AFHTTPRequestOperationManager封裝了通過HTTP協議與Web應用程序進行通訊的常用方法.(這個實例化的時候不是單例, 因爲沒有shared字)
*包括創建請求/響應序列化/網絡監控/數據安全.
*方法等都是以AF開頭的.
3、AFN能做的 (網絡中的都涵蓋了):
*GET/POST/PUT/DELETE/HEAD請求.
*JSON數據解析/Plist數據解析.(不支持XML數據解析)
*POSTJSON.
*上傳/下載.
4、使用步驟 : (可參考說明文檔)
1.首先需要實例化一個請求管理器AFHTTPRequestOperationManager.
2.設置請求的數據格式:默認是二進制.(不是可改)
*AFHTTPRequestSerializer(二進制)
*AFJSONRequestSerializer(JSON)
*AFPropertyListRequestSerializer(Plist)
3.設置響應的數據格式:默認是JSON.(不是可改)
*AFHTTPResponseSerializer(二進制)
*AFJSONResponseSerializer(JSON)
*AFPropertyListResponseSerializer(Plist)
*AFXMLParserResponseSerializer(XML)
*AFImageResponseSerializer(Image)
*AFCompoundResponseSerializer(組合的)
4.如果響應者的MIMEType不正確,就要修改acceptableContentTypes.
5.調用方法,發送響應的請求(GET/POST...).
關於修改AFN源碼:通常序列化時做對text/plan等的支持時,可以一勞永逸的修改源代碼,在acceptableContentTypes中修改即可。
AFN進行GET、POST登錄:
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#pragma mark - get/post登錄
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- (void)getLogin {
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AFHTTPRequestOperationManager *manager = [AFHTTPRequestOperationManager manager];
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NSDictionary *dict = @{ @"username":@"xn", @"password":@"123" };
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[manager GET:@"http://localhost/login.php" parameters:dict success: ^(AFHTTPRequestOperation *operation, id responseObject) {
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NSLog(@"GET --> %@, %@", responseObject, [NSThread currentThread]);
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} failure: ^(AFHTTPRequestOperation *operation, NSError *error) {
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NSLog(@"%@", error);
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}];
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}
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- (void)postLogin {
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AFHTTPRequestOperationManager *manager = [AFHTTPRequestOperationManager manager];
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NSDictionary *dict = @{ @"username":@"xn", @"password":@"123" };
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[manager POST:@"http://localhost/login.php" parameters:dict success: ^(AFHTTPRequestOperation *operation, id responseObject) {
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NSLog(@"POST --> %@, %@", responseObject, [NSThread currentThread]);
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} failure: ^(AFHTTPRequestOperation *operation, NSError *error) {
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NSLog(@"%@", error);
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}];
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}
AFN進行網絡數據解析,獲取Plist,JSON,XML(AFN不支持自動解析XML,有專門的框架去做,如SAX,PULL,KissXML等)
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#pragma mark - get 數據解析
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- (void)getJSON {
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AFHTTPRequestOperationManager *manager = [AFHTTPRequestOperationManager manager];
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[manager GET:@"http://localhost/videos.json" parameters:nil success: ^(AFHTTPRequestOperation *operation, id responseObject) {
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NSLog(@"%@", responseObject);
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} failure: ^(AFHTTPRequestOperation *operation, NSError *error) {
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NSLog(@"%@", error);
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}];
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}
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- (void)getXML {
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AFHTTPRequestOperationManager *manager = [AFHTTPRequestOperationManager manager];
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manager.responseSerializer = [AFXMLParserResponseSerializer serializer];
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[manager GET:@"http://localhost/videos.xml" parameters:nil success: ^(AFHTTPRequestOperation *operation, id responseObject) {
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NSLog(@"%@", responseObject);
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} failure: ^(AFHTTPRequestOperation *operation, NSError *error) {
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NSLog(@"%@", error);
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}];
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}
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- (void)getPlist {
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AFHTTPRequestOperationManager *manager = [AFHTTPRequestOperationManager manager];
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manager.responseSerializer = [AFPropertyListResponseSerializer serializer];
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manager.responseSerializer.acceptableContentTypes = [NSSet setWithObject:@"text/plain"];
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[manager GET:@"http://localhost/videos.plist" parameters:nil success: ^(AFHTTPRequestOperation *operation, id responseObject) {
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NSLog(@"%@", responseObject);
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} failure: ^(AFHTTPRequestOperation *operation, NSError *error) {
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NSLog(@"%@", error);
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}];
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}
用AFN來POST JSON數據,上傳、下載等。(上傳、下載主頁說明上有https://github.com/AFNetworking/AFNetworking)
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#pragma mark - post json數據與上傳文件等
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- (void)postJSON {
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AFHTTPRequestOperationManager *manager = [AFHTTPRequestOperationManager manager];
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manager.requestSerializer = [AFJSONRequestSerializer serializer];
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manager.responseSerializer = [AFHTTPResponseSerializer serializer];
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NSDictionary *dict = @{ @"username":@"xn", @"password":@"123" };
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[manager POST:@"http://localhost/postjson.php" parameters:dict success: ^(AFHTTPRequestOperation *operation, id responseObject) {
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NSString *result = [[NSString alloc] initWithData:responseObject encoding:NSUTF8StringEncoding];
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NSLog(@"%@",result);
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} failure: ^(AFHTTPRequestOperation *operation, NSError *error) {
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NSLog(@"%@", error);
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}];
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}
轉載請註明出處:http://blog.csdn.net/xn4545945