1 //
 2 //  ZFViewController.m
 3 //  0628-表单验证
 4 //
 5 //  Created by zfan on 14-6-28.
 6 //  Copyright (c) 2014年 zfan. All rights reserved.
 7 //
 8 
 9 #import "ZFViewController.h"
10 #import "MBProgressHUD+MJ.h"
11 
12 @interface ZFViewController ()
13 
14 @property (weak, nonatomic) IBOutlet UITextField *userNameTextField;
15 @property (weak, nonatomic) IBOutlet UITextField *passWordTextField;
16 
17 @end
18 
19 @implementation ZFViewController
20 
21 - (void)viewDidLoad
22 {
23     [super viewDidLoad];
24 }
25 
26 - (IBAction)login:(id)sender
27 {
28     //验证账号和密码是否合法
29     if (self.userNameTextField.text.length == 0)
30     {
31         [MBProgressHUD showError:@"请输入账号"];
32         return;
33     }
34     
35     if (self.passWordTextField.text.length == 0)
36     {
37         [MBProgressHUD showError:@"请输入密码"];
38         return;
39     }
40     
41     //取出账号和密码
42     NSString *userName = self.userNameTextField.text;
43     NSString *password = self.passWordTextField.text;
44     
45     //生成URL
46     NSString *urlPath = [NSString stringWithFormat:@"http://192.168.1.101:8080/ZFServer/login?username=%@&pwd=%@", userName, password];
47     NSURL *url = [NSURL URLWithString:urlPath];
48     
49     //生成连接
50     NSURLRequest *urlRequest = [NSURLRequest requestWithURL:url];
51     
52     //建立连接并接收返回数据(同步执行)
53 //    NSData *loginData = [NSURLConnection sendSynchronousRequest:urlRequest returningResponse:nil error:nil];
54     
55     
56     //建立连接并接收返回数据(异步执行)
57     NSOperationQueue *queue = [[NSOperationQueue alloc] init];
58     [NSURLConnection sendAsynchronousRequest:urlRequest queue:queue completionHandler:^(NSURLResponse *response, NSData *data, NSError *connectionError) {
59         NSData *loginData = data;
60         NSLog(@"%ld", (unsigned long)loginData.length);
61     }];
62     
63     //打印返回的数据长度
64     NSLog(@"%@", self.userNameTextField.text);
65     NSLog(@"%@", self.passWordTextField.text);
66 //    NSLog(@"%ld", (unsigned long)loginData.length);
67 }
68 
69 @end

[NSURLConnection sendSynchronousRequest:urlRequest returningResponse:nil error:nil];

NSOperationQueue *queue = [[NSOperationQueue alloc] init];
[NSURLConnection sendAsynchronousRequest:urlRequest queue:queue completionHandler:^(NSURLResponse *response, NSData *data, NSError *connectionError) {
　　NSData *loginData = data;
　　NSLog(@"%ld", (unsigned long)loginData.length);
}];