大家在使用一款新的软件时都会让注册,不过你嫌账号太多麻烦也可以点击下面的第三方登录,例如微博、微信、QQ、人人等等.以微博三方登录为例,利用微博开放平台暴露的接口来实现一下微博的三方登录
1.首先打开网页登录http://open.weibo.com
2.接下来是在文档中找到对应的授权接口
注:
①.这个请求的的地址不能拿AF来请求,只能是通过webView加载
②.为了避免三方登陆接触到自身的用户名和密码,通过网页解决这个问题,所以更安全,登录成功信息通过回调查看是否登陆成功
3.请求参数找必选的(client_id, redirect_uri)
注:地址与参数之间用?连接参数与参数之间用&
eg:https://api.weibo.com/oauth2/authorize?client_id=&redirect_uri=http://www.xxxxx.com
4.在我的应用中创建应用,提取App Key和App Secret
eg:
App Key：123456789
App Secret：a6a6e8e254c3c13372fd6b556c1b4837
https://api.weibo.com/oauth2/authorize?client_id=123456789&redirect_uri=http://www.xxxxx.com
5.通过网页加载url进行测试
授权错误
解决办法:
6.实现webView代理协议,在开始加载时查看请求URL的的详细信息
#import "LoginViewController.h"
#import "WeiboTool.h"
#define AccountPath [NSHomeDirectory() stringByAppendingString:@"Documents/Account.plist"]
@interface LoginViewController ()<UIWebViewDelegate>
@end
@implementation LoginViewController
- (void)viewDidLoad {
[super viewDidLoad];
UIWebView *wv = [[UIWebView alloc]initWithFrame:self.view.bounds];
wv.delegate = self;
[self.view addSubview:wv];
NSURL *url = [NSURL URLWithString:@"https://api.weibo.com/oauth2/authorize?client_id=123456789&redirect_uri=http://www.xxxxx.com"];
NSURLRequest *request = [NSURLRequest requestWithURL:url];
[wv loadRequest:request];
}
//拦截URL请求，拦截带code的URL
- (BOOL)webView:(UIWebView *)webView shouldStartLoadWithRequest:(NSURLRequest *)request navigationType:(UIWebViewNavigationType)navigationType{
NSString *path = [request.URL description];
NSLog(@"-------%@",path);
//调用该方法相当于调用rangeOfString看看里面是否有code
if ([path containsString:@"code"]) {
NSString *code = [[path componentsSeparatedByString:@"="]lastObject];
[WeiboTool requestTokenWithCode:code andWithBlock:^(id obj) {
NSDictionary *dic = obj;
//用户登录后一次后不再进行登录
[dic writeToFile:AccountPath atomically:YES];
NSLog(@"登录成功！");
[self dismissViewControllerAnimated:YES completion:nil];
}];
return NO;
}
return YES;
}
@end
7.创建工具类利用AF进行请求
WeiboTool.h
#import <Foundation/Foundation.h>
#import "AFNetworking.h"
@interface WeiboTool : NSObject
+ (void)requestTokenWithCode:(NSString *)code andWithBlock:(void(^)(id obj))datablock;
@end
WeiboTool.m
#import "WeiboTool.h"
@implementation WeiboTool
+(void)requestTokenWithCode:(NSString *)code andWithBlock:(void (^)(id obj))datablock {
NSString *path = @"https://api.weibo.com/oauth2/access_token";
NSDictionary *params = @{@"client_id":@"123456789",
@"client_secret":@"a6a6e8e254c3c13372fd6b556c1b4837",
@"grant_type":@"authorization_code",
@"redirect_uri":@"http://www.baidu.com",
@"code":code};
AFHTTPSessionManager *manager = [AFHTTPSessionManager manager];
manager.responseSerializer = [AFHTTPResponseSerializer serializer];
[manager POST:path parameters:params progress:nil success:^(NSURLSessionDataTask * _Nonnull task, id _Nullable responseObject) {
NSDictionary *dic = [NSJSONSerialization JSONObjectWithData:responseObject options:0 error:nil];
NSLog(@"%@",dic);
datablock(dic);
} failure:^(NSURLSessionDataTask * _Nullable task, NSError * _Nonnull error) {
NSLog(@"请求失败：%@",error);
}];
}
@end
8.用code换token(令牌)最终在日志显示返回数据和文档一致
网盘下载链接:链接: https://pan.baidu.com/s/1jHNfvnw 密码: cydi
