iOS 微信支付詳細步驟及幾個可能遇到的小問題
阿新 • • 發佈：2019-02-14
一. 支付準備工作
1. 微信相關準備工作
(1) 向微信官方開通支付功能. 這個不是前端的工作.
(2) 匯入官方下載的微信支付SDK包. 我用的是微信開放平臺下載的SDK 1.6.2
(3) 匯入必要的庫檔案
SystemConfiguration.framework,
libz.dylib,
libsqlite3.0.dylib,
libc++.dylib,
CoreTelephoy.framework (坑一: 這個庫是必要的,但是微信官方文件中沒有說到要匯入)
(4) 該專案中的Bundle Identifier 應該填向微信註冊的Bundle Identifier
(5) 註冊微信 (回撥的時候用到,告訴微信,從微信返回到哪個APP)
Target --> info --> URL Types --> +按鈕 --> 填寫identifier 和 URL Schemes. 前一個是識別符號,一般填@"weixin".後一個是註冊的微信appId. 比如"wx19a984b788a8a0b1".(註釋: 假的appid)
(6) 新增微信白名單
info.plist --> 右擊 --> open as --> source Code --> 新增白名單
我是在<key>CFBundleVersion</key>
<key>LSApplicationQueriesSchemes</key>
<array>
<string>wechat</string>
<string>weixin</string>
</array>
(7) 如果支付成功,回撥方法不執行,或者回調不成功.請再次確認(4)(5)(6),是否填寫正確.
(8) 執行一下,不報錯.報錯,再次確認(1)--(7)步驟.
二.程式碼相關
1. 在AppDelegate.h中
(1) 匯入微信類 #import @"WXApi.h".
(2) 遵守微信代理方法 <WXApiDelegate>
2. 在APPDelegate.m中
(1) 註冊微信
#pragma mark 註冊微信 - (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions { //註冊 微信 /** 引數1 : 微信Appid 引數2 : 對專案的描述資訊(用專案名稱) */ [WXApi registerApp:@"微信Appid" withDescription:@"雲宴"]; return YES; }
(2) 跳轉方法,並設定代理
#pragma mark 跳轉處理 //被廢棄的方法. 但是在低版本中會用到.建議寫上 - (BOOL)application:(UIApplication *)application openURL:(NSURL *)url sourceApplication:(NSString *)sourceApplication annotation:(id)annotation { return [WXApi handleOpenURL:url delegate:self]; } //被廢棄的方法. 但是在低版本中會用到.建議寫上 - (BOOL)application:(UIApplication *)application handleOpenURL:(NSURL *)url { return [WXApi handleOpenURL:url delegate:self]; } //新的方法 - (BOOL)application:(UIApplication *)app openURL:(NSURL *)url options:(NSDictionary<NSString *,id> *)options { return [WXApi handleOpenURL:url delegate:self]; }
(3) 微信回撥方法 (注意: 不要寫成Req方法了)
#pragma mark 微信回撥方法 - (void)onResp:(BaseResp *)resp { NSString * strMsg = [NSString stringWithFormat:@"errorCode: %d",resp.errCode]; NSLog(@"strMsg: %@",strMsg); NSString * errStr = [NSString stringWithFormat:@"errStr: %@",resp.errStr]; NSLog(@"errStr: %@",errStr); NSString * strTitle; //判斷是微信訊息的回撥 --> 是支付回調回來的還是訊息回調回來的. if ([resp isKindOfClass:[SendMessageToWXResp class]]) { strTitle = [NSString stringWithFormat:@"傳送媒體訊息的結果"]; } NSString * wxPayResult; //判斷是否是微信支付回撥 (注意是PayResp 而不是PayReq) if ([resp isKindOfClass:[PayResp class]]) { //支付返回的結果, 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:"; NSLog(@"支付成功: %d",resp.errCode); wxPayResult = @"success"; break; } case WXErrCodeUserCancel: { strMsg = @"使用者取消了支付"; NSLog(@"使用者取消支付: %d",resp.errCode); wxPayResult = @"cancel"; break; } default: { strMsg = [NSString stringWithFormat:@"支付失敗! code: %d errorStr: %@",resp.errCode,resp.errStr]; NSLog(@":支付失敗: code: %d str: %@",resp.errCode,resp.errStr); wxPayResult = @"faile"; break; } } //發出通知 從微信回調回來之後,發一個通知,讓請求支付的頁面接收訊息,並且展示出來,或者進行一些自定義的展示或者跳轉 NSNotification * notification = [NSNotification notificationWithName:@"WXPay" object:wxPayResult]; [[NSNotificationCenter defaultCenter] postNotification:notification]; } }
3. 在ViewController.h (進行支付請求的類)
暫時沒有任何操作
4. 在ViewController.m中(進行支付的請求的類)
(1) 匯入微信庫 #import @"WXApi.h"
(2) 監聽APPDelegate.m中傳送的通知
#pragma mark 監聽通知 - (void)viewWillAppear:(BOOL)animated { [super viewWillAppear:YES]; //檢測是否裝了微信軟體 if ([WXApi isWXAppInstalled]) { //監聽通知 [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(getOrderPayResult:) name:@"WXPay" object:nil]; } }
#pragma mark - 事件 - (void)getOrderPayResult:(NSNotification *)notification { NSLog(@"userInfo: %@",notification.userInfo); if ([notification.object isEqualToString:@"success"]) { UIAlertView * alertView = [[UIAlertView alloc] initWithTitle:@"提示資訊" message:@"支付成功" delegate:self cancelButtonTitle:@"確定" otherButtonTitles:nil, nil]; [alertView show]; } else { [self alert:@"提示" msg:@"支付失敗"]; } } //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]; }
(3) 移除通知
#pragma mark 移除通知 - (void)dealloc { //移除通知 [[NSNotificationCenter defaultCenter] removeObserver:self]; }
(4) 調起微信去支付
- (void)viewDidLoad { [super viewDidLoad]; [self pay_button]; } #pragma mark - 實現方法 #pragma mark 建立支付按鈕 - (void)pay_button { self.payButton = [UIButton buttonWithType:UIButtonTypeCustom]; self.payButton.frame = CGRectMake(10, 100, 300, 40); self.payButton.backgroundColor = [UIColor orangeColor]; [self.payButton setTitle:@"去支付" forState:UIControlStateNormal]; [self.payButton addTarget:self action:@selector(payButtonClicked) forControlEvents:UIControlEventTouchUpInside]; [self.view addSubview:self.payButton]; } #pragma mark - 點選事件 - (void)payButtonClicked { [self sendNetWorking_WXPay]; } - (void)sendNetWorking_WXPay { NSString * urlStr = [NSString stringWithFormat:@"%@%@",YYIP,@"wx/pay"]; NSDictionary * parameter = @{ @"pay_type" : @"1", @"total_price" : @"10", @"appointment_id" : @"208" }; [self sendNetWorkingWith:urlStr andParameter:parameter]; } #pragma mark 網路請求 -->> post - (void)sendNetWorkingWith:(NSString *)url andParameter:(NSDictionary *)parameter { AFHTTPSessionManager * manager = [AFHTTPSessionManager manager]; [manager POST:url parameters:parameter progress:^(NSProgress * _Nonnull uploadProgress) { } success:^(NSURLSessionDataTask * _Nonnull task, id _Nullable responseObject) { NSLog(@"%@",responseObject); //網路請求回來的8個引數.詳見微信開發平臺 NSDictionary * result = responseObject[@"result"]; NSString * appid = result[@"appid"]; NSString * noncestr = result[@"noncestr"]; NSString * package1 = result[@"package1"]; NSString * partnerid = result[@"partnerid"]; NSString * paySign = result[@"paySign"]; NSString * prepayid = result[@"prepayid"]; NSString * timestamp = result[@"timestamp"]; // NSString * err_code = result[@"err_code"]; // NSString * timeStamp = result[@"timeStamp"]; // NSString * tradeid = result[@"tradeid"]; [self WXPayRequest:appid nonceStr:noncestr package:package1 partnerId:partnerid prepayId:prepayid timeStamp:timestamp sign:paySign]; } failure:^(NSURLSessionDataTask * _Nullable task, NSError * _Nonnull error) { NSLog(@"%@",error); }]; } #pragma mark - 調起微信支付 - (void)WXPayRequest:(NSString *)appId nonceStr:(NSString *)nonceStr package:(NSString *)package partnerId:(NSString *)partnerId prepayId:(NSString *)prepayId timeStamp:(NSString *)timeStamp sign:(NSString *)sign{ //調起微信支付 PayReq* wxreq = [[PayReq alloc] init]; wxreq.openID = appId; // 微信的appid wxreq.partnerId = partnerId; wxreq.prepayId = prepayId; wxreq.nonceStr = nonceStr; wxreq.timeStamp = [timeStamp intValue]; wxreq.package = package; wxreq.sign = sign; [WXApi sendReq:wxreq]; }
三.上程式碼
1. AppDelegate.h
#import <UIKit/UIKit.h> #import "WXApi.h" @interface AppDelegate : UIResponder <UIApplicationDelegate,WXApiDelegate> @property (strong, nonatomic) UIWindow *window; @end
2. AppDelegate.m
#import "AppDelegate.h" @interface AppDelegate () @end @implementation AppDelegate #pragma mark 註冊微信 - (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions { //註冊 微信 /** 引數1 : 微信Appid 引數2 : 對專案的描述資訊(用專案名稱) */ [WXApi registerApp:@"wx09a984b788a8a0b0" withDescription:@"雲宴"]; return YES; } #pragma mark 跳轉處理 //被廢棄的方法. 但是在低版本中會用到.建議寫上 - (BOOL)application:(UIApplication *)application openURL:(NSURL *)url sourceApplication:(NSString *)sourceApplication annotation:(id)annotation { return [WXApi handleOpenURL:url delegate:self]; } //被廢棄的方法. 但是在低版本中會用到.建議寫上 - (BOOL)application:(UIApplication *)application handleOpenURL:(NSURL *)url { return [WXApi handleOpenURL:url delegate:self]; } //新的方法 - (BOOL)application:(UIApplication *)app openURL:(NSURL *)url options:(NSDictionary<NSString *,id> *)options { return [WXApi handleOpenURL:url delegate:self]; } #warning 這一步中 不要錯誤的把req 當成了 resp #pragma mark 微信回撥方法 - (void)onResp:(BaseResp *)resp { NSString * strMsg = [NSString stringWithFormat:@"errorCode: %d",resp.errCode]; NSLog(@"strMsg: %@",strMsg); NSString * errStr = [NSString stringWithFormat:@"errStr: %@",resp.errStr]; NSLog(@"errStr: %@",errStr); NSString * strTitle; //判斷是微信訊息的回撥 if ([resp isKindOfClass:[SendMessageToWXResp class]]) { strTitle = [NSString stringWithFormat:@"傳送媒體訊息的結果"]; } NSString * wxPayResult; //判斷是否是微信支付回撥 (注意是PayResp 而不是PayReq) if ([resp isKindOfClass:[PayResp class]]) { //支付返回的結果, 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:"; NSLog(@"支付成功: %d",resp.errCode); wxPayResult = @"success"; break; } case WXErrCodeUserCancel: { strMsg = @"使用者取消了支付"; NSLog(@"使用者取消支付: %d",resp.errCode); wxPayResult = @"cancel"; break; } default: { strMsg = [NSString stringWithFormat:@"支付失敗! code: %d errorStr: %@",resp.errCode,resp.errStr]; NSLog(@":支付失敗: code: %d str: %@",resp.errCode,resp.errStr); wxPayResult = @"faile"; break; } } //發出通知 NSNotification * notification = [NSNotification notificationWithName:@"WXPay" object:wxPayResult]; [[NSNotificationCenter defaultCenter] postNotification:notification]; } } @end
3. ViewController.h
#import <UIKit/UIKit.h> @interface ViewController : UIViewController @end
4. ViewController.m
#import "ViewController.h" #import "AFHTTPSessionManager.h" #import "WXApi.h" #define YYIP @"http:公司IP地址" @interface ViewController () @property (nonatomic, strong) UIButton * payButton; @end @implementation ViewController #pragma mark 監聽通知 - (void)viewWillAppear:(BOOL)animated { [super viewWillAppear:YES]; //檢測是否裝了微信軟體 if ([WXApi isWXAppInstalled]) { //監聽通知 [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(getOrderPayResult:) name:@"WXPay" object:nil]; } } #pragma mark 移除通知 - (void)viewWillDisappear:(BOOL)animated { [super viewWillDisappear:YES]; //移除通知 [[NSNotificationCenter defaultCenter] removeObserver:self]; } - (void)viewDidLoad { [super viewDidLoad]; [self pay_button]; } #pragma mark - 實現方法 #pragma mark 建立支付按鈕 - (void)pay_button { self.payButton = [UIButton buttonWithType:UIButtonTypeCustom]; self.payButton.frame = CGRectMake(10, 100, 300, 40); self.payButton.backgroundColor = [UIColor orangeColor]; [self.payButton setTitle:@"去支付" forState:UIControlStateNormal]; [self.payButton addTarget:self action:@selector(payButtonClicked) forControlEvents:UIControlEventTouchUpInside]; [self.view addSubview:self.payButton]; } #pragma mark - 點選事件 - (void)payButtonClicked {
if ([WXApi isWXAppInstalled])
{
[self sendNetWorking_WXPay];
}
else
{
[self alert:@"提示" msg:@"未安裝微信"];
}
}
- (void)sendNetWorking_WXPay
{
NSString * urlStr = [NSString stringWithFormat:@"%@%@",YYIP,@"wx/pay"];
NSDictionary * parameter = @{
@"pay_type" : @"1",
@"total_price" : @"10",
@"appointment_id" : @"208"
};
[self sendNetWorkingWith:urlStr andParameter:parameter];
}
#pragma mark 網路請求 -->> post
- (void)sendNetWorkingWith:(NSString *)url andParameter:(NSDictionary *)p