新浪微博发送消息和授权机制原理（WeiboSDK）

来源：互联网发布：vscode markdown 插件编辑：程序博客网时间：2024/05/16 17:56

1.首先是在微博发送消息，对于刚开始做weibo发送消息的初学者会有一个误区，那就是会认为需要授权后才可以发送消息，其实发送消息只需要几行代码就可以实现了，非常简单，不需要先授权再发送消息，因为weibosdk已经帮我们封装好了。（此情况需要用户安装客户端）

发送消息流程为：点击发送消息按键----SDK会自动帮我们判断用户是否安装了新浪微博客户端--如果未安装弹出安装提示----如果安装直接跳转到sina微博客户端进行发送----发送成功后自动跳回原应用程序。

1)在AppDelegate中注册sdk, AppDelegate需要实现WeiboSDKDelegate

AppDelegate.h@interface AppDelegate : UIResponder <UIApplicationDelegate, WeiboSDKDelegate>{...

AppDelegate.m- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions{    //注册SDK    [WeiboSDK enableDebugMode:YES];    [WeiboSDK registerApp:kAppKey];- (BOOL)application:(UIApplication *)application openURL:(NSURL *)url sourceApplication:(NSString *)sourceApplication annotation:(id)annotation{    return [WeiboSDK handleOpenURL:url delegate:self];}

2)拼接消息对象WBMessageObject，并发送消息[WeiboSDK sendRequest:request];

WBSendMessageToWeiboRequest *request = [WBSendMessageToWeiboRequest requestWithMessage:[self messageToShare]];    request.userInfo = @{@"ShareMessageFrom": @"SendMessageToWeiboViewController",                         @"Other_Info_1": [NSNumber numberWithInt:123],                         @"Other_Info_2": @[@"obj1", @"obj2"],                         @"Other_Info_3": @{@"key1": @"obj1", @"key2": @"obj2"}};    //    request.shouldOpenWeiboAppInstallPageIfNotInstalled = NO;        [WeiboSDK sendRequest:request];//这句就可以发送消息了，不需要先授权

- (WBMessageObject *)messageToShare{    WBMessageObject *message = [WBMessageObject message];        if (self.textSwitch.on)    {        message.text = @"测试通过WeiboSDK发送文字到微博!";    }        if (self.imageSwitch.on)    {        WBImageObject *image = [WBImageObject object];        image.imageData = [NSData dataWithContentsOfFile:[[NSBundle mainBundle] pathForResource:@"image_1" ofType:@"jpg"]];        message.imageObject = image;    }    if (self.mediaSwitch.on)    {        WBWebpageObject *webpage = [WBWebpageObject object];        webpage.objectID = @"identifier1";        webpage.title = @"分享网页标题";        webpage.description = [NSString stringWithFormat:@"分享网页内容简介-%.0f", [[NSDate date] timeIntervalSince1970]];        webpage.thumbnailData = [NSData dataWithContentsOfFile:[[NSBundle mainBundle] pathForResource:@"image_2" ofType:@"jpg"]];        webpage.webpageUrl = @"http://sina.cn?a=1";        message.mediaObject = webpage;    }        return message;}

重要：如果程序发送完消息无法跳回原应用的话是因为在plist文件中没有配置URL Types，appKey在你的新浪开发者帐号里有。

2.授权，通过授权我们可以在用户未安装客户端的情况下关注指定微博。

授权主要是为了得到：userID,accessToken，有了accessToken我们就可以访问新浪weibo的API了http://open.weibo.com/wiki/%E5%BE%AE%E5%8D%9AAPI

response.userInfo对象就是我们要的东西

#import <UIKit/UIKit.h>@interface SinaWeiBoLoginViewController : UIViewController<UIWebViewDelegate>{    UIWebView *_webView;    void (^_completionHandler)(BOOL);    BOOL loadSuccess;}@property (nonatomic, copy)void (^completionHandler)(BOOL);@property (nonatomic)BOOL loadSuccess;- (id)initWithLoginCompletion:(void (^) (BOOL isLoginSuccess))isLoginSuccess;- (void)startRequest;@end

////  SinaWeiBoLoginViewController.m//  YinYin////  Created by Lw. on 14-7-3.////#import "SinaWeiBoLoginViewController.h"#import "SinaUtil.h"#import "SVProgressHUD.h"#define title_height ((!IS_IOS_7)?40:60)@interface SinaWeiBoLoginViewController ()@end@implementation SinaWeiBoLoginViewController@synthesize completionHandler,loadSuccess;- (id)initWithLoginCompletion:(void (^) (BOOL isLoginSuccess))isLoginSuccess{    if (self = [super init]) {        self.completionHandler = isLoginSuccess;    }    return self;}- (void)dealloc{    [_webView release];    [super dealloc];}- (void)viewDidLoad {    [super viewDidLoad];    [self.view setBackgroundColor:[UIColor whiteColor]];    //自定义导航    UIView *customNavBar = [[UIView alloc] initWithFrame:CGRectMake(0, 0, 320, title_height)];    customNavBar.backgroundColor = [UIColor blackColor];    [self.view addSubview:customNavBar];    [customNavBar release];        UIButton *returnBtn = [UIButton buttonWithType:UIButtonTypeCustom];    [returnBtn setTitle:@"取消" forState:UIControlStateNormal];    returnBtn.titleLabel.font = [UIFont systemFontOfSize:15];    returnBtn.frame = CGRectMake(7, (!IS_IOS_7)?5:20, 50, 30);    [returnBtn addTarget:self action:@selector(Cancelbtn) forControlEvents:UIControlEventTouchUpInside];    [customNavBar addSubview:returnBtn];    _webView = [[UIWebView alloc] initWithFrame:CGRectMake(0,title_height, self.view.frame.size.width, self.view.frame.size.height - title_height)];_webView.delegate = self;[self.view addSubview:_webView];    [_webView release];    [self startRequest];}-(void)Cancelbtn{    _webView.delegate = nil;    if(self.completionHandler)    {        self.completionHandler(NO);    }    [self dismissViewControllerAnimated:YES completion:nil];}#pragma mark - 请求网络-(void)startRequest{NSURLRequest *request = [[NSURLRequest alloc] initWithURL:[SinaUtil authorizeURL]];[_webView loadRequest:request];}#pragma mark - UIWebView代理方法- (void)webViewDidStartLoad:(UIWebView *)webView{    [SVProgressHUD show];}- (void)webViewDidFinishLoad:(UIWebView *)webView{    [SVProgressHUD dismiss];}-(void)webView:(UIWebView *)webView didFailLoadWithError:(NSError *)error{    [SVProgressHUD dismiss];}- (BOOL)webView:(UIWebView *)webView shouldStartLoadWithRequest:(NSURLRequest *)request navigationType:(UIWebViewNavigationType)navigationType{    if ([request.URL.absoluteString rangeOfString:@"code="].location != NSNotFound) {        NSString *code = [[request.URL.query componentsSeparatedByString:@"="] objectAtIndex:1];        loadSuccess = YES;        if([SinaUtil getAccessToken:code]){            if([SinaUtil sinaAtt]){                [self dismissViewControllerAnimated:YES completion:^{                    [SVProgressHUD showSuccessWithStatus:@"关注成功"];                }];            }else{                [SVProgressHUD showErrorWithStatus:@"关注失败"];            }        }else{            [SVProgressHUD showErrorWithStatus:@"授权失败"];        }        return NO;    }    return YES;}-(void)viewDidDisappear:(BOOL)animated{    [SVProgressHUD dismiss];}-(void)viewDidUnload{    [SVProgressHUD dismiss];}@end

#import <Foundation/Foundation.h>#import "WeiboSDK.h"#import "EnvConstant.h"#import "ASIHTTPRequest.h"@class ShareMultiple;@interface SinaUtil : NSObject<WBHttpRequestDelegate>+(void)share:(NSString *)text imageData:(UIImage *)imageData imageUrl:(NSString *)imageUrl url:(NSString *)url urlTitle:(NSString *)urlTitle urlDesc:(NSString *)urlDesc urlThumbdata:(UIImage *)urlThumbdata;#pragma mark - public method+(void)evaluatingJavaScriptFromString:(id)userInfo;+(void)timerFireMethod:(NSTimer*)theTimer;+(BOOL) startWith:(NSString*)prefix forString:(NSString*)text;+(BOOL) stringEquals:(NSString*)str1 to:(NSString*)str2;#pragma mark - 关注功能/** *授权地址 * *@return     UIWebView所要加载的url */+ (NSURL *)authorizeURL;+ (BOOL)getAccessToken:(NSString *)code;+(BOOL)sinaAtt;+(BOOL)isAuthorized;+(void)saveLoginInfo:(NSDictionary *)aDic;@end

#import "SinaUtil.h"#import "EnvConstant.h"#import "AppDelegate.h"#import "WXApiObject.h"#import "ASIHTTPRequest.h"#import "SVProgressHUD.h"#import "ASIHTTPRequest.h"#import "ASIFormDataRequest.h"#import "SBJSON.h"@implementation SinaUtil//3.发布媒体,只能文字图片，文字媒体，无法文字图片媒体+(void)share:(NSString *)text imageData:(UIImage *)imageData imageUrl:(NSString *)imageUrl url:(NSString *)url urlTitle:(NSString *)urlTitle urlDesc:(NSString *)urlDesc urlThumbdata:(UIImage *)urlThumbdata{        WBMessageObject *message = [WBMessageObject message];    //1.文本    if(text != nil){        message.text = text;    }    //2.图片和超链接    if(imageData != nil){        WBImageObject *imageObj = [WBImageObject object];        imageObj.imageData = UIImagePNGRepresentation(imageData);        message.imageObject = imageObj;    }else if (imageUrl != nil){        if([@"http://www.yypt.com/home/resources/images/activity/weiboshare.jpg" isEqualToString:imageUrl]){            WBImageObject *imageObj = [WBImageObject object];            imageObj.imageData = UIImagePNGRepresentation([UIImage imageNamed:@"weiboshare.jpg"]);            message.imageObject = imageObj;        }else{            //message.text = [NSString stringWithFormat:@"%@%@",message.text,imageUrl];        }}    //3.媒体    if(url != nil){        WBWebpageObject *webpage = [WBWebpageObject object];        webpage.objectID = @"identifier1";        webpage.title = urlTitle;        webpage.description = urlDesc;        webpage.thumbnailData = UIImagePNGRepresentation(urlThumbdata);        webpage.webpageUrl = url;        message.mediaObject = webpage;    }    WBSendMessageToWeiboRequest *request = [WBSendMessageToWeiboRequest requestWithMessage:message];    [WeiboSDK sendRequest:request];}#pragma mark - WBHttpRequestDelegate- (void)request:(WBHttpRequest *)request didFinishLoadingWithResult:(NSString *)result{    //收到网络回调}- (void)request:(WBHttpRequest *)request didFailWithError:(NSError *)error;{    //请求异常}#pragma mark - public method//执行脚本+(void)evaluatingJavaScriptFromString:(id)userInfo{    [NSTimer scheduledTimerWithTimeInterval:0.01 target:self selector:@selector(timerFireMethod:) userInfo:userInfo repeats:NO];}//timer回调，0成功，1失败，2取消+(void)timerFireMethod:(NSTimer*)theTimer{    if([theTimer.userInfo isKindOfClass:[SendMessageToWXResp class]]){        SendMessageToWXResp* response = (SendMessageToWXResp *)theTimer.userInfo;        int d = 0;        switch (response.errCode) {            case WXSuccess:                d = 0;                break;            case WXErrCodeUserCancel:                d = 2;                break;            default:                d = 1;                break;        }        NSString* jsString = @"$(document).trigger('shareResultEvent',['%d'])";        AppDelegate *appDelegate = (AppDelegate *)[[UIApplication sharedApplication]delegate];        [appDelegate.viewController.webView stringByEvaluatingJavaScriptFromString:[NSString stringWithFormat:jsString,d]];//这里的errcode不同于weibo的statusCode            }else if([theTimer.userInfo isKindOfClass:[WBBaseResponse class]]){        WBBaseResponse* response = (WBBaseResponse *)theTimer.userInfo;        int d = 0;        switch (response.statusCode) {            case WeiboSDKResponseStatusCodeSuccess:                d = 0;                break;            case WeiboSDKResponseStatusCodeUserCancel:                d = 2;                break;            default:                d = 1;                break;        }        NSString* jsString = @"$(document).trigger('shareResultEvent',['%d'])";        AppDelegate *appDelegate = (AppDelegate *)[[UIApplication sharedApplication]delegate];        [appDelegate.viewController.webView stringByEvaluatingJavaScriptFromString:[NSString stringWithFormat:jsString,d]];    }    }#pragma mark - string+(BOOL) startWith:(NSString*)prefix forString:(NSString*)text{    if ( text != nil && prefix != nil ){        if ( [prefix length] > [text length] ) {            return NO;        }                NSString* prestr = [text substringToIndex:[prefix length]];        if ( [self stringEquals:prestr to:prefix] ) {            return YES;        }            }    return NO;}+(BOOL) stringEquals:(NSString*)str1 to:(NSString*)str2{    if ( str1 == nil || str2 == nil ) {        return NO;    }    return [str1 compare:str2 options:NSCaseInsensitiveSearch] == NSOrderedSame;}#pragma mark - 关注功能/** *授权地址 * *@return     UIWebView所要加载的url */+ (NSURL *)authorizeURL{    NSString *authStr = [NSString stringWithFormat:@"%@?client_id=%@&redirect_uri=%@&response_type=%@&display=%@",SINA_AUTHORIZE_URL,kWBSDKDemoAppKey,wbkRedirectURI,@"code",@"mobile"];    return [NSURL URLWithString:authStr];}/** *获取AccessToken * *@paramcode        在webView的重定向地址中取得code *  @param  isSuccess   block 请求成功的回调 *                      BOOL  isSuccess 请求是否成功 YES or NO */+ (BOOL)getAccessToken:(NSString *)code{    NSURL *url = [NSURL URLWithString:[HOSTURL stringByAppendingString:@"/oauth2/access_token"]];    ASIFormDataRequest *request = [[ASIFormDataRequest alloc]initWithURL:url];    [request addPostValue:kWBSDKDemoAppKey forKey:@"client_id"];    [request addPostValue:kWBSDKDemoAppSecret forKey:@"client_secret"];    [request addPostValue:@"authorization_code" forKey:@"grant_type"];    [request addPostValue:code forKey:@"code"];    [request addPostValue:wbkRedirectURI forKey:@"redirect_uri"];    [request setRequestMethod:@"POST"];    [SVProgressHUD show];    [request startSynchronous];    NSError *err = [request error];    BOOL flag = NO;    if (!err) {        NSString *responseString = [request responseString];        NSLog(@"responseString = %@", responseString);        if ([responseString rangeOfString:@"access_token"].location != NSNotFound) {            SBJSON *json = [[SBJSON alloc] init];            NSDictionary *jsonDic = [json objectWithString:responseString];            [SinaUtil saveLoginInfo:jsonDic];        }        flag = YES;    }else{        flag = NO;    }    [SVProgressHUD dismiss];    return flag;}//关注微博+(BOOL)sinaAtt{    NSString *accessToken = [[NSUserDefaults standardUserDefaults] objectForKey:SINA_ACCESS_TOKEN_KEY];    NSString *path = @"/2/friendships/create.json";    NSString *requestUrl = [HOSTURL stringByAppendingString:path];    NSLog(@"requestUrl = %@",requestUrl);    ASIFormDataRequest *request = [[ASIFormDataRequest alloc] initWithURL:[NSURL URLWithString:requestUrl]];    [request addPostValue:accessToken forKey:@"access_token"];    [request addPostValue:ATTENTION_SINA_WEIBO_NUM forKey:@"uid"];    [request addPostValue:ATTENTION_SINA_WEIBO_SCREEN_NAME forKey:@"screen_name"];    [request startSynchronous];    request.timeOutSeconds = 6;    NSError *error = [request error];    BOOL flag = NO;    if(error!=nil){        flag = NO;    }else{        flag = YES;    }    return flag;}/** *判断有没有登录过，并且获得到的token有没有过期 * *@return     YES 有可用的token ，并且没有过期; NO 没有可用的token */+(BOOL)isAuthorized{    NSUserDefaults *userDef = [NSUserDefaults standardUserDefaults];    NSString *accessToken = [userDef objectForKey:SINA_ACCESS_TOKEN_KEY];    NSDate *expiresDate = [userDef objectForKey:SINA_ACCESS_EXPIRES_IN_KEY];    if (expiresDate){        return (NSOrderedDescending == [expiresDate compare:[NSDate date]] && accessToken);    }    return NO;}/** *保存登录信息 * *@paramaDic字典中有access_token，exoires_in，uid等信息 */+(void)saveLoginInfo:(NSDictionary *)aDic{    NSLog(@"保存token...");    [[NSUserDefaults standardUserDefaults] setObject:[aDic objectForKey:@"access_token"] forKey:SINA_ACCESS_TOKEN_KEY];    NSDate *expiresDate = [NSDate dateWithTimeIntervalSinceNow:[[aDic objectForKey:@"expires_in"] intValue]];    [[NSUserDefaults standardUserDefaults] setObject:expiresDate forKey:SINA_ACCESS_EXPIRES_IN_KEY];    [[NSUserDefaults standardUserDefaults] setObject:[aDic objectForKey:@"uid"] forKey:SINA_USER_ID_KEY];    [[NSUserDefaults standardUserDefaults] synchronize];}@end

调用方式：

if([SinaUtil isAuthorized]){                if([SinaUtil sinaAtt]){                    [SVProgressHUD showSuccessWithStatus:@"关注成功"];                }else{                    [SVProgressHUD showErrorWithStatus:@"关注失败"];                }            }else{                //[self selectRow:@"follow-wb"];                SinaWeiBoLoginViewController *sinaVC = [[SinaWeiBoLoginViewController alloc]init];                [self presentViewController:sinaVC animated:YES completion:nil];            }

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