ios之AFN上传下载详细步骤(2)

 1 五.AFN
 2 1.GET\POST
 3 1> GET请求
 4 // 1.获得请求管理者
 5 AFHTTPRequestOperationManager *mgr = [AFHTTPRequestOperationManager manager];
 6
 7 // 2.封装请求参数
 8 NSMutableDictionary *params = [NSMutableDictionary dictionary];
 9 params[@"username"] = @"123";
10 params[@"pwd"] = @"123";
11
12 // 3.发送GET请求
13 [mgr GET:@"http://baidu.com/login" parameters:params
14  success:^(AFHTTPRequestOperation *operation, id responseObject) {
15      NSLog(@"请求成功---%@", responseObject);
16  }
17  failure:^(AFHTTPRequestOperation *operation, NSError *error) {
18      NSLog(@"请求失败---%@", error);
19  }];
20
21
22 2> POST请求
23 // 1.获得请求管理者
24 AFHTTPRequestOperationManager *mgr = [AFHTTPRequestOperationManager manager];
25
26 // 2.封装请求参数
27 NSMutableDictionary *params = [NSMutableDictionary dictionary];
28 params[@"username"] = @"123";
29 params[@"pwd"] = @"123";
30
31 // 3.发送POST请求
32 [mgr POST:@"http://baidu.com/login" parameters:params
33  success:^(AFHTTPRequestOperation *operation, id responseObject) {
34      NSLog(@"请求成功---%@", responseObject);
35  }
36  failure:^(AFHTTPRequestOperation *operation, NSError *error) {
37      NSLog(@"请求失败---%@", error);
38  }];
39
40 2.文件上传
41 // 1.获得请求管理者
42 AFHTTPRequestOperationManager *mgr = [AFHTTPRequestOperationManager manager];
43
44 // 2.发送请求(做文件上传)
45 #warning parameters : 只能放非文件参数
46 NSMutableDictionary *params = [NSMutableDictionary dictionary];
47 params[@"username"] = @"zhangsan";
48
49 [mgr POST:@"http://baidu.com/upload" parameters:params
50 constructingBodyWithBlock:^(id<AFMultipartFormData> formData) {
51     // 一定要在这个block中添加文件参数
52
53     // 加载文件数据
54     NSString *file = [[NSBundle mainBundle] pathForResource:@"test.txt" ofType:nil];
55     NSData *data = [NSData dataWithContentsOfFile:file];
56
57     // 拼接文件参数
58     [formData appendPartWithFileData:data name:@"file" fileName:@"123.txt" mimeType:@"text/plain"];
59 }
60   success:^(AFHTTPRequestOperation *operation, id responseObject) {
61       NSLog(@"上传成功----%@", responseObject);
62   } failure:^(AFHTTPRequestOperation *operation, NSError *error) {
63       NSLog(@"上传失败----%@", error);
64   }];