【ios php注册登录系统下载】iOS+PHP注册登录系统 iOS部分（下）

接着上篇《iOS+PHP注册登录系统 PHP部分（上）》进行学习

3.iOS部分

上一次我们写完了数据库部分和PHP部分这次我们来完成iOS部分。
首先先在storyboard中一阵狂拖，弄成如下图。
可以先在text Field中输入用户名和密码 方便以后调试。

3.1登录部分代码

创建一个新的UIViewController 名为registViewController（用于注册用户，ViewController用于登录）。
在ViewController.h中importregistViewController
#import "registViewController.h" 

然后设置登录界面中的控件 用来写用户名的控件名设置为txtUser,密码的控件名设置为txtPwd,确定按钮的方法名称为
LoginClick,注册按钮的方法名为registButton。
然后开始写ViewController.m中的代码

// // ViewController.m // iosLogin // // Created by 曹晗 on 16/2/25. // Copyright :emoji: 2016年 CaoHan. All rights reserved. //    #import "ViewController.h"    @interface ViewController () @property (weak, nonatomic) IBOutlet UITextField *txtUser; @property (weak, nonatomic) IBOutlet UITextField *txtPwd;    @end    @implementation ViewController    - (void)viewDidLoad {   [super viewDidLoad];   // Do any additional setup after loading the view, typically from a nib. }    - (void)didReceiveMemoryWarning {   [super didReceiveMemoryWarning];   // Dispose of any resources that can be recreated. } - (IBAction)LoginClick:(id)sender {   //前后去空格   NSString *userName = [_txtUser.text stringByTrimmingCharactersInSet:[NSCharacterSet whitespaceCharacterSet]];   NSString *userPwd = [_txtPwd.text stringByTrimmingCharactersInSet:[NSCharacterSet whitespaceCharacterSet]];        NSDictionary *jsonDic = [self getJsonData:userName userpwd:userPwd];   NSString* loginFlag = [jsonDic objectForKey:@"loginFlag"];   NSLog(@"%@",loginFlag);        [self aletrInfo:loginFlag]; } - (IBAction)registButton:(id)sender {   UIStoryboard *storboard = self.storyboard;   registViewController *vc2 = [storboard instantiateViewControllerWithIdentifier:@"vc2"];   [self presentViewController:vc2 animated:YES completion:nil]; } //用于请求PHP 获得JSON - (NSDictionary *)getJsonData:(NSString *)user_name userpwd:(NSString *)user_pwd {   NSError *error;   NSString *urlString = [NSString stringWithFormat:@"http://192.168.1.106/iosLogin/index.php?action=login&user_name=%@&user_pwd=%@",user_name,user_pwd];   //加载一个NSURL对象   NSURLRequest *request = [NSURLRequest requestWithURL:[NSURL URLWithString:urlString]];   //将请求的url数据放到NSData对象中   NSData *response = [NSURLConnection sendSynchronousRequest:request returningResponse:nil error:nil];   //IOS5自带解析类NSJSONSerialization从response中解析出数据放到字典中   NSDictionary *jsonDic = [NSJSONSerialization JSONObjectWithData:response options:NSJSONReadingMutableLeaves error:&error];   NSLog(@"接收到的数据为%@",jsonDic);   returnjsonDic; } //弹出信息 - (void)aletrInfo:(NSString *)loginFlag{   UIAlertView *alert = [[UIAlertView alloc]init];   [alert setTitle:@"提示"]; [alert setDelegate:nil];   [alert addButtonWithTitle:@"确定"];        if([loginFlag isEqual: @"0"]) {     [alert setMessage:@"账号或密码错误"];   }   if([loginFlag isEqual:@"1"]) {     [alert setMessage:@"登陆成功"];   }   [alert show]; }    @end

在注册按钮能够跳转界面前，要先将stroyboard中的注册界面的stroyboard ID设置为vc2才可以进行跳转。

复制代码代码如下: NSString *urlString = [NSString stringWithFormat:@"http://192.168.1.106/iosLogin/index.php?action=login&user_name=%@&user_pwd=%@",user_name,user_pwd]; 

 

其中这里的192.168.1.106可以写localhost也可以写自己的ip地址。
写到这里就可以先进行调试一下登录了。后面的注册用户代码也和这里差不多。

3.2注册界面代码
先在registViewCongroller.h中import ViewController.h
#import "ViewController.h" 
然后是registViewController.m中的代码。

// // registViewController.m // iosLogin // // Created by 曹晗 on 16/2/27. // Copyright 2016年 CaoHan. All rights reserved. //    #import "registViewController.h"    @interface registViewController () @property (weak, nonatomic) IBOutlet UITextField *txtUser; @property (weak, nonatomic) IBOutlet UITextField *txtPwd;    @end    @implementation registViewController    - (void)viewDidLoad {   [super viewDidLoad];   // Do any additional setup after loading the view. }    - (void)didReceiveMemoryWarning {   [super didReceiveMemoryWarning];   // Dispose of any resources that can be recreated. } //这个是注册按钮 - (IBAction)registButton:(id)sender {   NSString *userName = [_txtUser.text stringByTrimmingCharactersInSet:[NSCharacterSet whitespaceCharacterSet]];   NSString *userPwd = [_txtPwd.text stringByTrimmingCharactersInSet:[NSCharacterSet whitespaceCharacterSet]];        NSDictionary *jsonDic = [self getJsonData:userName userpwd:userPwd];   NSString* registFlag = [jsonDic objectForKey:@"registFlag"];   NSLog(@"%@",registFlag);        [self aletrInfo:registFlag];      } //这个是返回按钮 - (IBAction)returnButton:(id)sender {   [self dismissModalViewControllerAnimated:YES]; }    - (NSDictionary *)getJsonData:(NSString *)user_name userpwd:(NSString *)user_pwd {   NSError *error;   NSString *urlString = [NSString stringWithFormat:@"http://192.168.1.106/iosLogin/index.php?action=regist&user_name=%@&user_pwd=%@",user_name,user_pwd];   //加载一个NSURL对象   NSURLRequest *request = [NSURLRequest requestWithURL:[NSURL URLWithString:urlString]];   //将请求的url数据放到NSData对象中   NSData *response = [NSURLConnection sendSynchronousRequest:request returningResponse:nil error:nil];   //IOS5自带解析类NSJSONSerialization从response中解析出数据放到字典中   NSDictionary *jsonDic = [NSJSONSerialization JSONObjectWithData:response options:NSJSONReadingMutableLeaves error:&error];   NSLog(@"接收到的数据为%@",jsonDic);   returnjsonDic; }    - (void)aletrInfo:(NSString *)registFlag{   UIAlertView *alert = [[UIAlertView alloc]init];   [alert setTitle:@"提示"]; [alert setDelegate:nil];   [alert addButtonWithTitle:@"确定"];        if([registFlag isEqual: @"0"]) {     [alert setMessage:@"用户名已存在"];   }   if([registFlag isEqual:@"1"]) {     [alert setMessage:@"注册成功"];   }   [alert show]; }    @end

【ios php注册登录系统下载】iOS+PHP注册登录系统 iOS部分（下）

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