创新互联是一家集网站建设,蒙城企业网站建设,蒙城品牌网站建设,网站定制,蒙城网站建设报价,网络营销,网络优化,蒙城网站推广为一体的创新建站企业,帮助传统企业提升企业形象加强企业竞争力。可充分满足这一群体相比中小企业更为丰富、高端、多元的互联网需求。同时我们时刻保持专业、时尚、前沿,时刻以成就客户成长自我,坚持不断学习、思考、沉淀、净化自己,让我们为更多的企业打造出实用型网站。
【原文地址:http://blog.csdn.net/toss156/article/details/7638529】
今天给大家带来一个简单的登陆验证,用的是ASIHttpRequest 这个开源类库,使用的方法很简单,从网上下载下来以后,添加到项目中,并添加一下这些框架。
下面上代码
- //
- // ViewController.h
- // NetDemo
- //
- // Created by zhouhaifeng on 12-6-6.
- // Copyright (c) 2012年 zhouhaifeng. All rights reserved.
- //
-
- #import
- #import "ASIHttpHeaders.h"
- #import "CJSONDeserializer.h"
- #import "tooles.h"
- @interface ViewController : UIViewController
- {
- UITextField *username;
- UITextField *password;
-
- }
- @property (nonatomic,retain) UITextField *username;
- @property (nonatomic,retain) UITextField *password;
-
- @end
- //
- // ViewController.m
- // NetDemo
- //
- // Created by zhouhaifeng on 12-6-6.
- // Copyright (c) 2012年 zhouhaifeng. All rights reserved.
- //
-
- #import "ViewController.h"
- #define HOSTURL @"http://192.168.1.105/NetDemo/index.php";
-
-
- @interface ViewController ()
- -(void) login:(id)sender;
- -(void) GetErr:(ASIHTTPRequest *)request;
- -(void) GetResult:(ASIHTTPRequest *)request;
- @end
-
- @implementation ViewController
- @synthesize username,password;
- - (void)viewDidLoad
- {
- [super viewDidLoad];
- // Do any additional setup after loading the view, typically from a nib.
- UILabel *txt1 = [[UILabel alloc] initWithFrame:CGRectMake(30,100,70,30)];
- [txt1 setText:@"用户名"];
- [txt1 setBackgroundColor:[UIColor clearColor]];
- [self.view addSubview:txt1];
-
- UILabel *txt2 = [[UILabel alloc] initWithFrame:CGRectMake(30,140,70,30)];
- [txt2 setText:@"密 码"];
- [txt2 setBackgroundColor:[UIColor clearColor]];
- [self.view addSubview:txt2];
-
- username = [[UITextField alloc]initWithFrame:CGRectMake(120,100, 150, 30)];
- [username setBorderStyle:UITextBorderStyleRoundedRect];
- [self.view addSubview:username];
-
- password = [[UITextField alloc]initWithFrame:CGRectMake(120,140, 150, 30)];
- [password setBorderStyle:UITextBorderStyleRoundedRect];
- [password setSecureTextEntry:YES];
- [self.view addSubview:password];
-
- UIButton *btn = [UIButton buttonWithType:UIButtonTypeRoundedRect];
- [btn setTitle:@"提交" forState:UIControlStateNormal];
- [btn addTarget:self action:@selector(login:) forControlEvents:UIControlEventTouchUpInside];
- [btn setFrame:CGRectMake(90, 180, 150, 40)];
- [self.view addSubview:btn];
-
-
-
- }
-
- -(void) login:(id)sender
- {
- //表单提交前的验证
- if (username.text == nil||password.text==nil ) {
- [tooles MsgBox:@"用户名或密码不能为空!"];
- return;
- }
- //隐藏键盘
- [username resignFirstResponder];
- [password resignFirstResponder];
- //
- [tooles showHUD:@"正在登陆...."];
- NSString *urlstr = HOSTURL;
- NSURL *myurl = [NSURL URLWithString:urlstr];
- ASIFormDataRequest *request = [ASIFormDataRequest requestWithURL:myurl];
- //设置表单提交项
- [request setPostValue:username.text forKey:@"username"];
- [request setPostValue:username.text forKey:@"password"];
- [request setDelegate:self];
- [request setDidFinishSelector:@selector(GetResult:)];
- [request setDidFailSelector:@selector(GetErr:)];
- [request startAsynchronous];
-
-
- }
-
- //获取请求结果
- - (void)GetResult:(ASIHTTPRequest *)request{
-
- [tooles removeHUD];
- NSData *data =[request responseData];
- NSDictionary *dictionary = [[CJSONDeserializer deserializer] deserializeAsDictionary:data error:nil];
-
//输出接收到的字符串
NSString *str = [NSString stringWithUTF8String:[data bytes]];
NSLog(@"%@",str);
//判断是否登陆成功
- if ([dictionary objectForKey:@"yes"]) {
- [tooles MsgBox:[dictionary objectForKey:@"yes"]];
- return;
- }else if ([dictionary objectForKey:@"error"] != [NSNull null]) {
- [tooles MsgBox:[dictionary objectForKey:@"error"]];
- return;
- }
-
- }
-
- //连接错误调用这个函数
- - (void) GetErr:(ASIHTTPRequest *)request{
-
- [tooles removeHUD];
-
- [tooles MsgBox:@"网络错误,连接不到服务器"];
- }
-
- - (void)viewDidUnload
- {
- [super viewDidUnload];
- // Release any retained subviews of the main view.
- }
-
- - (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation
- {
- return (interfaceOrientation != UIInterfaceOrientationPortraitUpsideDown);
- }
-
- -(void) dealloc
- {
- [username release];
- [password release];
- [super dealloc];
- }
-
- @end
php端验证的代码,随便写了下,后面就是返回一个JSON格式的字符串。
-
- if($_POST['username'] == "admin" && $_POST['password'] == "admin")
- {
- echo '{"yes":"登陆成功"}';
- }else
- {
- echo '{"error":"用户名或密码错误"}';
- };
- ?>
分享题目:【IOS】利用ASIHTTPRequest实现一个简单的登陆验证
标题来源:
http://www.cdkjz.cn/article/gheeij.html