微信APP支付（IOS手机端+java后台）版(2)

3.IOS客户端开发

导入微信开发包

添加URL Types

在AppDelegate.m中注册应用

#import "AppDelegate.h"
#import "XSTabBarViewController.h"
#import <AlipaySDK/AlipaySDK.h>
#import "WXApi.h"
 
@interface AppDelegate ()<WXApiDelegate>
 
@end
 
@implementation AppDelegate
 
 
- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {
 // Override point for customization after application launch.
 
// [NSThread sleepForTimeInterval:2.0];
 
 // 进入主控制器
 self.window = [[UIWindow alloc] init];
 self.window.frame = [UIScreen mainScreen].bounds;
 self.window.rootViewController = [[XSTabBarViewController alloc] init];
 
 [self.window makeKeyAndVisible];
 
 //向微信注册应用。
 [WXApi registerApp:@"wxfb96c2a9b531be26"];
 
 return YES;
}
 
-(void) onResp:(BaseResp*)resp
{
//  NSLog(@" ----onResp %@",resp);
 /*
  ErrCode ERR_OK = 0(用户同意)
  ERR_AUTH_DENIED = -4（用户拒绝授权）
  ERR_USER_CANCEL = -2（用户取消）
  code 用户换取access_token的code，仅在ErrCode为0时有效
  state 第三方程序发送时用来标识其请求的唯一性的标志，由第三方程序调用sendReq时传入，由微信终端回传，state字符串长度不能超过1K
  lang 微信客户端当前语言
  country 微信用户当前国家信息
  */
 if ([resp isKindOfClass:[SendAuthResp class]]) //判断是否为授权请求，否则与微信支付等功能发生冲突
 {
  SendAuthResp *aresp = (SendAuthResp *)resp;
  if (aresp.errCode== 0)
  {
   //   NSLog(@"code %@",aresp.code);
   [[NSNotificationCenter defaultCenter] postNotificationName:@"wechatDidLoginNotification" object:self userInfo:@{@"code":aresp.code}];
  }
 }else{ // 支付请求回调
  //支付返回结果，实际支付结果需要去微信服务器端查询
  NSString *strMsg = [NSString stringWithFormat:@"支付结果"];
  NSString *respcode = @"0";
  switch (resp.errCode) {
   case WXSuccess:
    strMsg = @"支付结果：成功！";
    //    NSLog(@"支付成功－PaySuccess，retcode = %d", resp.errCode);
    respcode = @"1";
    break;
   default:
    strMsg = [NSString stringWithFormat:@"支付结果：失败！retcode = %d, retstr = %@", resp.errCode,resp.errStr];
    //    NSLog(@"错误，retcode = %d, retstr = %@", resp.errCode,resp.errStr);
    respcode = @"0";
    break;
  }
  [[NSNotificationCenter defaultCenter] postNotificationName:@"wechatDidPayNotification" object:self userInfo:@{@"respcode":respcode}];
 }
}
 
 
//iOS 9.0 之前的处理方法不保证正确,如有错误还望指正
- (BOOL)application:(UIApplication *)application openURL:(NSURL *)url sourceApplication:(NSString *)sourceApplication annotation:(id)annotation
{
 NSLog(@"iOS 9.0 ֮ǰ");
 return [self applicationOpenURL:url];
}
 
-(BOOL)application:(UIApplication *)app openURL:(NSURL *)url options:(NSDictionary<UIApplicationOpenURLOptionsKey,id> *)options {
 NSLog(@"iOS 9.0 之后");
 return [self applicationOpenURL:url];
}
 
- (BOOL)applicationOpenURL:(NSURL *)url
{
 if([[url absoluteString] rangeOfString:@"wxfb96c2a9b531be26://pay"].location == 0){
  return [WXApi handleOpenURL:url delegate:self];
 }
 if ([url.host isEqualToString:@"safepay"])
 {
  [[AlipaySDK defaultService] processOrderWithPaymentResult:url standbyCallback:nil];
  return YES;
 }
 return YES;
}
 
}

在必须支付的Controller中接受微信支付通知

- (void)viewDidLoad {
 [super viewDidLoad];
 
 // 接受微信支付通知
 [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(wechatDidPayNotification:) name:@"wechatDidPayNotification" object:nil];
}

向服务器端获取统一订单，并拉起微信进行支付

-(void)weixinPay
{
 NSString *userUrlStr = [NSString stringWithFormat:@"%@?sid=%@&account=%@&desc=%@", WX_PREPAY_URL, self.student.sid,self.payJinE,self.student.nid];
 NSURL *url = [NSURL URLWithString:userUrlStr];
//  NSLog(@"userUrlStr = %@", userUrlStr);
 
 NSURLRequest *request = [NSURLRequest requestWithURL:url];
 AFHTTPRequestOperation *operation = [[AFHTTPRequestOperation alloc]initWithRequest:request];
 
 [MBProgressHUD showMessage:@"跳转中，请稍候"];
 [operation setCompletionBlockWithSuccess:^(AFHTTPRequestOperation *operation, NSDictionary *responseObject) {
  [MBProgressHUD hideHUD];
  
//   NSLog(@"微信支付的response = %@", operation.responseString);
  NSData *JSONData = [operation.responseString dataUsingEncoding:NSUTF8StringEncoding];
  NSDictionary *userDict = [NSJSONSerialization JSONObjectWithData:JSONData options:NSJSONReadingMutableLeaves error:nil];
  
  // 调用微信支付
  PayReq *request = [[PayReq alloc] init];
  /** 商家向财付通申请的商家id */
  request.partnerId = [userDict objectForKey:@"partnerid"];
  /** 预支付订单 */
  request.prepayId= [userDict objectForKey:@"prepayid"];
  /** 商家根据财付通文档填写的数据和签名 */
  request.package = [userDict objectForKey:@"package"];
  /** 随机串，防重发 */
  request.nonceStr= [userDict objectForKey:@"noncestr"];
  /** 时间戳，防重发 */
  request.timeStamp= [[userDict objectForKey:@"timestamp"] intValue];
  /** 商家根据微信开放平台文档对数据做的签名 */
  request.sign= [userDict objectForKey:@"sign"];
  self.sign = request.sign;
  self.ordnum = [userDict objectForKey:@"ordnum"];
  
 
  [WXApi sendReq: request];
 }failure:^(AFHTTPRequestOperation *operation, NSError *error) {
  [MBProgressHUD hideHUD];
  NSLog(@"发生错误！%@",error);
 }];
 NSOperationQueue *queue = [[NSOperationQueue alloc] init];
 [queue addOperation:operation];
 
}
// 微信支付结果
-(void)wechatDidPayNotification:(NSNotification *)notification
{
// NSLog(@"wechatDidPayNotification");
 NSDictionary *nameDictionary = [notification userInfo];
 NSString *respcode = [nameDictionary objectForKey:@"respcode"];
 if([respcode isEqualToString:@"1"]){
  // 支付成功，更新用户信息
  [self payDidFinish];
 }else{
  // 支付失败，
  [self setupAlertControllerWithTitle:@"微信支付结果" messge:@"本次支付未完成，您可以稍后重试！" confirm:@"好的"];
 }
}

以上就是本文的全部内容，希望对你们的学习有所帮助，也期望你们多多支持脚本之家。

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