最近公司心血來潮,一心要搞微信。廢話不多說,直接上干貨。
開發前准備:
1、在微信開發者平台獲取開發者認證:(一年300元人民幣)
PS:具體流程按照微信流程指示操作即可,在這就不廢話了。
2、下載微信最新的SDK,引入到工程里邊
3、導入相關系統庫及文件,不導入會報錯
4、在你的工程文件中選擇Build Setting,在Search Paths中添加 libWeChatSDK.a, WXApi.h, WXApiObject.h 三個文件所在位置
5、配置info.plist文件
6、URL type設置
選中你的工程設置項,選中targets一欄,在info標簽欄的URL type 添加URL scheme 為你所注冊的應用程序id
1.app跳轉微信
1、app跳轉微信公眾號
在工程中添加pch文件,導入 WXApi.h頭文件,並在你需要跳轉的界面增加WXApiDelegate協議
在你的跳轉方法中添加一下代碼:
JumpToBizProfileReq *req = [JumpToBizProfileReq new];
req.username = @"gh_64a69d298ecf"; // 原始ID
req.profileType = WXBizProfileType_Normal;
req.extMsg = @"";
[WXApi sendReq:req];
這樣APP就可以掉起微信界面,進入微信公眾號(如果之前沒有關注過此微信公眾號,就會進入微信公眾號的關注界面)
2、APP跳轉到微信相關的其他網頁(如微信小店相關商品信息界面)
OpenWebviewReq *req = [OpenWebviewReq new];
req.url = @"需要微信內置瀏覽器打開的網址";
[WXApi sendReq:req];
PS:
原始ID: 申請公共號時系統給你的唯一編號,有此 id你更改微信號后依然能綁定公共號
APPID: 開通 api 服務時，系統給你的唯一編號
APPSECRET: 通俗一點兒來說就是密鑰
2、微信支付
流程可能看起來有點復雜,下面我盡量給你們配圖來說明
1、APP客戶端下單(選擇商品)
2、APP將商品數據傳給后台服務器,請求生成支付訂單
3、后台調用統一下單API向微信服務器發送請求生成預付單,並生成一個prepay_id返回給后台,后台再將prepay_id放回給客戶端,成功生成訂單信息
生成訂單相關代碼
AFHTTPRequestOperationManager *manager = [AFHTTPRequestOperationManager manager];
NSDictionary *signParaDic = @{@"schoolId":schoolId,
@"studentId":studentId,
@"parentId":parentId,
@"parentTel":phone,
@"totalFee":[NSString stringWithFormat:@"%i",payProduct.totalFee],
@"productId":[NSString stringWithFormat:@"%i",payProduct.productId],
@"productName":payProduct.productName};
NSString *sign = [EncodeParameter md5:signParaDic];
NSDictionary *parameters = @{@"schoolId":schoolId,
@"parentId":parentId,
@"studentId":studentId,
@"parentTel":phone,
@"totalFee":[NSString stringWithFormat:@"%i",payProduct.totalFee],
@"productId":[NSString stringWithFormat:@"%i",payProduct.productId],
@"productName":payProduct.productName,
@"sign":sign};
NSMutableURLRequest *request = [[AFHTTPRequestSerializer serializer] requestWithMethod:@"POST" URLString:WechatPlaceOrderAPI parameters:parameters error:nil];
_palceOrderOperation = [manager HTTPRequestOperationWithRequest:request success:^(AFHTTPRequestOperation *operation, id responseObject) {
//
NSDictionary *resDic = (NSDictionary *)responseObject;
NSNumber *code = [resDic objectForKey:@"result"];
NSString *msg = [resDic objectForKey:@"message"];
if ([code integerValue] == Success) {
WeChatPreOrder *preOrder = [[WeChatPreOrder alloc] initWithDic:resDic];
if (self.delegate && [self.delegate respondsToSelector:@selector(placeOrderSucess:preOder:)]) {
[self.delegate placeOrderSucess:self preOder:preOrder];
}
} else if ([code integerValue] == 300) {
if (self.delegate && [self.delegate respondsToSelector:@selector(placeOrderFailed:error:)]) {
[self.delegate placeOrderFailed:self error:msg];
}
}else {
if (self.delegate && [self.delegate respondsToSelector:@selector(placeOrderFailed:error:)]) {
[self.delegate placeOrderFailed:self error:RequestError];
}
}
} failure:^(AFHTTPRequestOperation *operation, NSError *error) {
if (self.delegate && [self.delegate respondsToSelector:@selector(placeOrderFailed:error:)]) {
[self.delegate placeOrderFailed:self error:RequestError];
}
}];
4、APP調用SDK打開微信,進行支付
微信客戶端向微信服務器發起支付請求並返回支付結果(中間交互參數prepay_id,微信服務器要驗證這個參數是否跟之前的prepay_id一致)
掉起微信支付相關代碼
PayReq* req = [[PayReq alloc] init];
req.partnerId = weChatPreOrder.partnerId;
req.prepayId = weChatPreOrder.prepayId;
req.nonceStr = weChatPreOrder.noncestr;
req.timeStamp = [weChatPreOrder.timestamp intValue];
req.package = weChatPreOrder.package;
req.sign = weChatPreOrder.sign;
[WXApi sendReq:req];
5、用戶輸入支付密碼后,微信客戶端跟微信服務器交互,確認支付
6、微信服務器將支付結果返回給微信客戶端,並異步發送支付結果給我們后台
7、客戶端可以調用后台查詢支付訂單接口,查詢是否支付成功,並顯示支付結果
查詢訂單相關代碼
AFHTTPRequestOperationManager *manager = [AFHTTPRequestOperationManager manager];
NSDictionary *signParaDic = @{@"schoolId":[BCHTTPRequest schoolId],@"parentId":[BCHTTPRequest getUserId]};
NSString *sign = [EncodeParameter md5:signParaDic];
NSDictionary *parameters = @{@"schoolId":[BCHTTPRequest schoolId],@"parentId":[BCHTTPRequest getUserId],@"sign":sign};
NSMutableURLRequest *request = [[AFHTTPRequestSerializer serializer] requestWithMethod:@"POST" URLString:QueryOrderAPI parameters:parameters error:nil];
_operation = [manager HTTPRequestOperationWithRequest:request success:^(AFHTTPRequestOperation *operation, id responseObject) {
//
NSDictionary *resDic = (NSDictionary *)responseObject;
NSNumber *code = [resDic objectForKey:@"result"];
NSString *msg = [resDic objectForKey:@"message"];
if ([code integerValue] == Success) {
NSArray *order = [self orderArray:resDic];
if (self.delegate && [self.delegate respondsToSelector:@selector(queryOrderSucess:orders:)]) {
[self.delegate queryOrderSucess:self orders:order];
}
} else if ([code integerValue] == 300) {
if (self.delegate && [self.delegate respondsToSelector:@selector(queryOrderFailed:error:)]) {
[self.delegate queryOrderFailed:self error:msg];
}
}else {
if (self.delegate && [self.delegate respondsToSelector:@selector(queryOrderFailed:error:)]) {
[self.delegate queryOrderFailed:self error:RequestError];
}
}
} failure:^(AFHTTPRequestOperation *operation, NSError *error) {
if (self.delegate && [self.delegate respondsToSelector:@selector(queryOrderFailed:error:)]) {
[self.delegate queryOrderFailed:self error:RequestError];
}
}];
MD5簽名相關代碼
+ (NSString *)md5:(NSDictionary *)paraDic {
// NOTE: 排序，得出最終請求字串
NSArray* sortedKeyArray = [[paraDic allKeys] sortedArrayUsingComparator:^NSComparisonResult(id _Nonnull obj1, id _Nonnull obj2) {
return [obj1 compare:obj2];
}];
NSMutableArray *tmpArray = [NSMutableArray new];
for (NSString* key in sortedKeyArray) {
NSString* value = [paraDic objectForKey:key];
if ([value isKindOfClass:[NSNumber class]]) {
value = [(NSNumber *)value stringValue];
}
if (value.length > 0) {
NSString *keyValueStr = [NSString stringWithFormat:@"%@=%@",key,value];
[tmpArray addObject:keyValueStr];
}
}
NSString *parameterStr = [tmpArray componentsJoinedByString:@"&"];
NSString *res = [NSString stringWithFormat:@"%@&key=%@",parameterStr,Key];
return [[BCBaseObject MD5Hash:res] uppercaseString];
}