iOS 整合微信支付
阿新 • • 發佈：2019-01-07
微信支付現在是移動支付領域一支不可忽視的力量，我們移動開發人員在開發app的時候，也不可避免的用到各種支付，支付寶支付我們用的最多了，我這裡就不講解了，我現在給大家講解一個iOS微信支付，首先 我們需要在微信開放平臺註冊商戶資訊(記住是微信開放平臺不是公眾平臺)，微信開放平臺支援的銀行卡有限，所以在確定用微信支付的時候先看看，支不支援公司的銀行卡，比如廣大銀行卡是不支援的。(程式碼下載地址)；
在微信開放平臺弄好app支付以後，下載iOS SDK,我們需要配置6個引數 如下圖 它在微信支付SDK lib資料夾下的payRequestHandler.h檔案中
把上面那幾引數配置好，最下面那2個引數，如果伺服器端沒配置好可以先不修改，就用微信預設的引數就可以。
因為微信支付的SDK程式碼是ARC的，所以我們需要在配置檔案裡面設定一下，新增-fno-objc-arc 如下圖
我們還需要配置一下info裡面的URL Types , URL Schemes裡面填寫的是APP_ID的值
我們在代理檔案(APPDelegate.h)裡面匯入微信支付的標頭檔案 payRequsestHandler.h、WXApi.h 如下圖
我們在AppDelegate.m 實現檔案中 寫上相應的程式碼
// // AppDelegate.m // 微信支付 // // Created by lairen on 15/8/18. // Copyright (c) 2015年 lairen. All rights reserved. // #import "AppDelegate.h" //服務端簽名只需要用到下面一個頭檔案 //#import "ApiXml.h" #import <QuartzCore/QuartzCore.h> @interface AppDelegate () @end @implementation AppDelegate @synthesize window = _window; - (id)init{ if(self = [super init]){ _scene = WXSceneSession; } return self; } - (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions { // 註冊微信 [WXApi registerApp:APP_ID withDescription:@"demo 2.0"]; //新增通知 [self addObserver]; return YES; } #pragma mark 新增通知 -(void)addObserver { [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(sendPay_demo) name:@"weixinPay" object:nil]; } -(void) changeScene:(NSInteger )scene { _scene = (enum WXScene)scene; } -(void) onResp:(BaseResp*)resp { NSString *strMsg = [NSString stringWithFormat:@"errcode:%d", resp.errCode]; NSString *strTitle; if([resp isKindOfClass:[SendMessageToWXResp class]]) { strTitle = [NSString stringWithFormat:@"傳送媒體訊息結果"]; } if([resp isKindOfClass:[PayResp class]]){ //支付返回結果，實際支付結果需要去微信伺服器端查詢 strTitle = [NSString stringWithFormat:@"支付結果"]; switch (resp.errCode) { case WXSuccess: strMsg = @"支付結果：成功！"; NSLog(@"支付成功－PaySuccess，retcode = %d", resp.errCode); break; default: strMsg = [NSString stringWithFormat:@"支付結果：失敗！retcode = %d, retstr = %@", resp.errCode,resp.errStr]; NSLog(@"錯誤，retcode = %d, retstr = %@", resp.errCode,resp.errStr); break; } } UIAlertView *alert = [[UIAlertView alloc] initWithTitle:strTitle message:strMsg delegate:self cancelButtonTitle:@"OK" otherButtonTitles:nil, nil]; [alert show]; } #pragma mark 微信支付 這個適合自己伺服器互動呼叫的方法 - (void)sendPay { //從伺服器獲取支付引數，服務端自定義處理邏輯和格式 //訂單標題 NSString *ORDER_NAME = @"ios 微信支付"; //訂單金額，單位（元） NSString *ORDER_PRICE = @"0.01"; //根據伺服器端編碼確定是否轉碼 NSStringEncoding enc; //if UTF8編碼 //enc = NSUTF8StringEncoding; SP_URL, //if GBK編碼 enc = CFStringConvertEncodingToNSStringEncoding(kCFStringEncodingGB_18030_2000); NSString *urlString = [NSString stringWithFormat:@"?plat=ios&order_no=%@&product_name=%@&order_price=%@", [[NSString stringWithFormat:@"%ld",time(0)] stringByAddingPercentEscapesUsingEncoding:enc], [ORDER_NAME stringByAddingPercentEscapesUsingEncoding:enc], ORDER_PRICE]; NSLog(@"%@",urlString); //解析服務端返回json資料 NSError *error; //載入一個NSURL物件 NSURLRequest *request = [NSURLRequest requestWithURL:[NSURL URLWithString:urlString]]; //將請求的url資料放到NSData物件中 NSData *response = [NSURLConnection sendSynchronousRequest:request returningResponse:nil error:nil]; if ( response != nil) { NSMutableDictionary *dict =NULL; //IOS5自帶解析類NSJSONSerialization從response中解析出資料放到字典中 dict = [NSJSONSerialization JSONObjectWithData:response options:NSJSONReadingMutableLeaves error:&error]; NSLog(@"url:%@",dict); if(dict != nil){ NSMutableString *retcode = [dict objectForKey:@"retcode"]; if (retcode.intValue == 0){ NSMutableString *stamp = [dict objectForKey:@"timestamp"]; //調起微信支付 PayReq* req = [[PayReq alloc] init]; req.openID = [dict objectForKey:@"appid"]; req.partnerId = [dict objectForKey:@"partnerid"]; req.prepayId = [dict objectForKey:@"prepayid"]; req.nonceStr = [dict objectForKey:@"noncestr"]; req.timeStamp = stamp.intValue; req.package = [dict objectForKey:@"package"]; req.sign = [dict objectForKey:@"sign"]; [WXApi sendReq:req]; //日誌輸出 // NSLog(@"%@",req.openID); NSLog(@"appid=%@\npartid=%@\nprepayid=%@\nnoncestr=%@\ntimestamp=%ld\npackage=%@\nsign=%@",req.openID,req.partnerId,req.prepayId,req.nonceStr,(long)req.timeStamp,req.package,req.sign ); }else{ [self alert:@"提示資訊" msg:[dict objectForKey:@"retmsg"]]; } }else{ [self alert:@"提示資訊" msg:@"伺服器返回錯誤，未獲取到json物件"]; } }else{ [self alert:@"提示資訊" msg:@"伺服器返回錯誤"]; } } #pragma mark 微信測試支付 這個是呼叫的微信伺服器的支付介面 - (void)sendPay_demo { NSLog(@"微信支付 demo"); //{{{ //本例項只是演示簽名過程， 請將該過程在商戶伺服器上實現 //建立支付簽名物件 payRequsestHandler *req = [payRequsestHandler alloc]; //初始化支付簽名物件 [req init:APP_ID mch_id:MCH_ID]; //設定金鑰 [req setKey:PARTNER_ID]; //}}} //獲取到實際調起微信支付的引數後，在app端調起支付 NSMutableDictionary *dict = [req sendPay_demo]; if(dict == nil){ //錯誤提示 NSString *debug = [req getDebugifo]; [self alert:@"提示資訊" msg:debug]; NSLog(@"%@\n\n",debug); }else{ NSLog(@"%@\n\n",[req getDebugifo]); //[self alert:@"確認" msg:@"下單成功，點選OK後調起支付！"]; NSMutableString *stamp = [dict objectForKey:@"timestamp"]; //調起微信支付 PayReq* req = [[PayReq alloc] init]; req.openID = [dict objectForKey:@"appid"]; req.partnerId = [dict objectForKey:@"partnerid"]; req.prepayId = [dict objectForKey:@"prepayid"]; req.nonceStr = [dict objectForKey:@"noncestr"]; req.timeStamp = stamp.intValue; req.package = [dict objectForKey:@"package"]; req.sign = [dict objectForKey:@"sign"]; [WXApi sendReq:req]; } } //客戶端提示資訊 - (void)alert:(NSString *)title msg:(NSString *)msg { UIAlertView *alter = [[UIAlertView alloc] initWithTitle:title message:msg delegate:nil cancelButtonTitle:@"OK" otherButtonTitles:nil]; [alter show]; } - (BOOL)application:(UIApplication *)application handleOpenURL:(NSURL *)url { return [WXApi handleOpenURL:url delegate:self]; } - (BOOL)application:(UIApplication *)application openURL:(NSURL *)url sourceApplication:(NSString *)sourceApplication annotation:(id)annotation { return [WXApi handleOpenURL:url delegate:self]; } @end
我們再在ViewController檔案中 新增支付按鈕。直接在故事版上面拖上2個按鈕就可以。第一個按鈕是用的微信伺服器返回的json資料 第二個按鈕返回的是自己伺服器返回的json資料，自己伺服器返回的資料包括簽名證書一些相關的東西，我們做操作演示 就使用微信的伺服器
給按鈕加上點選方法。方法在ViewController.m檔案中 點選方法的時候會發送一個通知給AppDelegate.m檔案
#pragma mark 新增通知
-(void)addObserver
{
[[NSNotificationCenterdefaultCenter]addObserver
}
#import "ViewController.h"
@interface ViewController ()
- (IBAction)testPay:(id)sender;
- (IBAction)realPay:(id)sender;
@end
@implementation ViewController
- (void)viewDidLoad {
[super viewDidLoad];
// Do any additional setup after loading the view, typically from a nib.
}
//微信支付測試簽名
- (IBAction)testPay:(id)sender {
[[NSNotificationCenter defaultCenter] postNotificationName:@"weixinPay" object:nil];
}
//微信支付測試簽名
- (IBAction)realPay:(id)sender {
UIAlertView *alert= [[UIAlertView alloc]initWithTitle:@"友情提示" message:@"伺服器端介面還沒開放，請稍後再試" delegate:nil cancelButtonTitle:@"好的" otherButtonTitles:nil, nil];
[alert show];
}
@end
呼叫起微信支付後，就會開啟微信
ok,到這裡我們的微信支付Demo,就已經做完了，同學們，加油啊。
