iOS开发——网络编程OC篇&（十一）ASI了解

 1 /**
 2  *  异步的GET请求
 3  */
 4 - (void)asynGet
 5 {
 6     // 1.URL
 7     NSURL *url = [NSURL URLWithString:@"http://localhost:8080/MJServer/video"];
 8     
 9     // 2.创建一个请求对象
10     ASIHTTPRequest *request = [ASIHTTPRequest requestWithURL:url];
11     request.timeOutSeconds = 15; // 15秒后服务器还没有响应，就算超时
12     // 设置代理
13     request.delegate = self;
14     
15     // 3.开始请求
16     [request startAsynchronous];
17     
18     self.request = request;
19 }
20 
21 - (void)dealloc
22 {
23     // 这句代码为了防止：控制器销毁了，request还回来调用控制器的代理方法，引发野指针
24     [self.request clearDelegatesAndCancel];
25 }
26 
27 #pragma mark - ASIHTTPRequestDelegate
28 /**
29  *  1.开始发送请求
30  */
31 - (void)requestStarted:(ASIHTTPRequest *)request
32 {
33     NSLog(@"requestStarted");
34 }
35 /**
36  *  2.接收到服务器的响应头信息
37  */
38 - (void)request:(ASIHTTPRequest *)request didReceiveResponseHeaders:(NSDictionary *)responseHeaders
39 {
40     NSLog(@"didReceiveResponseHeaders");
41 }
42 /**
43  *  3.接收到服务器的实体数据（具体数据）
44  *  只要实现了这个代理方法，responseData\responseString就没有值
45  */
46 //- (void)request:(ASIHTTPRequest *)request didReceiveData:(NSData *)data
47 //{
48 //    NSLog(@"didReceiveData-%@", data);
49 //}
50 /**
51  *  4.服务器的响应数据接收完毕
52  */
53 - (void)requestFinished:(ASIHTTPRequest *)request
54 {
55     NSLog(@"requestFinished--%@", [request responseData]);
56 }
57 /**
58  *  5.请求失败
59  */
60 - (void)requestFailed:(ASIHTTPRequest *)request
61 {
62     NSLog(@"requestFailed");
63 }
64 
65 
66 /**
67  *  同步的GET请求
68  */
69 - (void)synGet
70 {
71     // 1.URL
72     NSURL *url = [NSURL URLWithString:@"http://localhost:8080/MJServer/video"];
73     
74     // 2.创建一个请求对象
75     ASIHTTPRequest *request = [ASIHTTPRequest requestWithURL:url];
76     request.timeOutSeconds = 15; // 15秒后服务器还没有响应，就算超时
77     
78     // 3.开始请求(这行代码会卡主，等待服务器给数据)
79     [request startSynchronous];
80     
81     // 4.请求完毕
82     NSError *error = [request error];
83     if (error) {
84         NSLog(@"请求失败---%@", error);
85     } else {
86         NSData *data = [request responseData];
87         //        NSString *str = [[NSString alloc] initWithData:data encoding:NSUTF8StringEncoding];
88         //        NSString *str = [request responseString];
89         
90         NSDictionary *dict = [NSJSONSerialization JSONObjectWithData:data options:NSJSONReadingMutableLeaves error:nil];
91         NSLog(@"请求成功---%@", dict);
92     }
93 }

 1 - (void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event
 2 {
 3     // 1.URL
 4     NSURL *url = [NSURL URLWithString:@"http://localhost:8080/MJServer/login"];
 5     
 6     // 2.创建一个请求对象
 7     ASIFormDataRequest *request = [ASIFormDataRequest requestWithURL:url];
 8     
 9     // 3.设置请求参数(建议使用setPostValue多一点)
10     [request setPostValue:@"123" forKey:@"username"];
11     [request setPostValue:@"123" forKey:@"pwd"];
12     
13     // 4.开始请求
14     [request startAsynchronous];
15     
16     // 5.设置监听方法
17     __weak typeof(request) weakRequest = request;
18     [request setCompletionBlock:^{
19         NSLog(@"请求完毕--%@", [weakRequest responseString]);
20     }];
21 }

 1 - (void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event
 2 {
 3     // 1.URL
 4     NSURL *url = [NSURL URLWithString:@"http://localhost:8080/MJServer/video"];
 5     
 6     // 2.创建一个请求对象
 7     ASIHTTPRequest *request = [ASIHTTPRequest requestWithURL:url];
 8     
 9     // 3.开始请求
10     [request startAsynchronous];
11     
12     // 4.设置监听方法
13     request.delegate = self;
14     [request setDidStartSelector:@selector(start:)];
15     [request setDidFinishSelector:@selector(finish:)];
16 }
17 
18 - (void)start:(ASIHTTPRequest *)request
19 {
20     NSLog(@"start--%@", request);
21 }
22 
23 - (void)finish:(ASIHTTPRequest *)request {
24     NSLog(@"finish--%d %@ %@", [request responseStatusCode], [request responseStatusMessage], [request responseData]);
25 }
26 
27 - (void)asyncBlock
28 {
29     // 1.URL
30     NSURL *url = [NSURL URLWithString:@"http://localhost:8080/MJServer/video"];
31     
32     // 2.创建一个请求对象
33     ASIHTTPRequest *request = [ASIHTTPRequest requestWithURL:url];
34     
35     // 如果同时设置了block和实现了代理方法，请求过程中，block和代理方法都会调用，
36     // 一般的调用顺序：代理方法 > block
37     //    request.delegate = self;
38     
39     // 3.开始请求
40     [request startAsynchronous];
41     
42     // 4.设置block监听
43     [request setStartedBlock:^{
44         NSLog(@"setStartedBlock");
45     }];
46     [request setHeadersReceivedBlock:^(NSDictionary *responseHeaders) {
47         NSLog(@"setHeadersReceivedBlock--%@", responseHeaders);
48     }];
49     [request setDataReceivedBlock:^(NSData *data) {
50         NSLog(@"setDataReceivedBlock--%@", data);
51         
52     }];
53     [request setCompletionBlock:^{
54         NSLog(@"setCompletionBlock");
55     }];
56     [request setFailedBlock:^{
57         NSLog(@"setFailedBlock");
58     }];
59 }
60 
61 //- (void)request:(ASIHTTPRequest *)request didReceiveData:(NSData *)data
62 //{
63 //    NSLog(@"didReceiveData--%@", data);
64 //}
65 //
66 //- (void)requestFinished:(ASIHTTPRequest *)request
67 //{
68 //    NSLog(@"requestFinished");
69 //}

 1 - (void)download
 2 {
 3     if (self.downloading) {
 4         [self.request clearDelegatesAndCancel];
 5         
 6         self.downloading = NO;
 7     } else {
 8         // 1.URL
 9         NSURL *url = [NSURL URLWithString:@"http://localhost:8080/MJServer/resources/test.mp4"];
10         
11         // 2.创建一个请求对象
12         ASIHTTPRequest *request = [ASIHTTPRequest requestWithURL:url];
13         
14         // 3.设置文件的缓存路径
15         NSString *caches = [NSSearchPathForDirectoriesInDomains(NSCachesDirectory, NSUserDomainMask, YES) lastObject];
16         NSString *filepath = [caches stringByAppendingPathComponent:@"test.mp4"];
17         request.downloadDestinationPath = filepath;
18         
19         // 4.设置进度监听的代理(要想成为进度监听代理，最好遵守ASIProgressDelegate协议)
20         request.downloadProgressDelegate = self.progressView;
21         
22         // 这个属性设置为YES，就会支持断点下载
23         request.allowResumeForFileDownloads = YES;
24         
25         // 如果要实现断点续传，需要设置一个文件的临时路径
26         request.temporaryFileDownloadPath = [NSTemporaryDirectory() stringByAppendingPathComponent:@"test.temp"];
27         
28         // 5.开始请求
29         [request startAsynchronous];
30         self.request = request;
31         
32         self.downloading = YES;
33     }
34 }
35 
36 //- (void)setProgress:(float)newProgress
37 //{
38 ////    NSLog(@"下载进度--%f", newProgress);
39 //    self.progressView.progress = newProgress;
40 //}

 1 - (void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event
 2 {
 3     // 1.URL
 4     NSURL *url = [NSURL URLWithString:@"http://localhost:8080/MJServer/upload"];
 5     
 6     // 2.创建一个请求对象
 7     ASIFormDataRequest *request = [ASIFormDataRequest requestWithURL:url];
 8     
 9     // 3.设置请求参数
10     [request setPostValue:@"zhangsan" forKey:@"username"];
11     [request setPostValue:@"123" forKey:@"pwd"];
12     [request setPostValue:@"28" forKey:@"age"];
13     [request setPostValue:@"1.89" forKey:@"height"];
14     
15     // 设置文件参数
16     NSString *file = [[NSBundle mainBundle] pathForResource:@"test" ofType:@"mp4"];
17     // 如果知道文件路径，最好就用这个方法（因为简单）
18     // ASI内部会自动识别文件的MIMEType
19     [request setFile:file forKey:@"file"];
20 //    [request setFile:file withFileName:@"basic.pptx" andContentType:@"application/vnd.openxmlformats-officedocument.presentationml.presentation" forKey:@"file"];
21     
22     // 如果文件数据是动态产生的，就用这个方法(比如刚拍照完获得的图片数据)
23 //    [request setData:<#(id)#> withFileName:<#(NSString *)#> andContentType:<#(NSString *)#> forKey:<#(NSString *)#>];
24     
25     // 4.设置监听上传进度的代理
26     request.uploadProgressDelegate = self.progressView;
27     
28     // 5.开始请求
29     [request startAsynchronous];
30     
31     // 6.监听完毕
32     __weak typeof(request) weakRequest = request;
33     [request setCompletionBlock:^{
34         NSLog(@"%@", [weakRequest responseString]);
35     }];
36 }