iOS微信支付_第四节_集成技术(见证时刻的时候到了)(更新完毕~)

摘要: iOS微信支付
调用微信支付 需要给服务器 必须要传递参数
1、手机ip地址
2、手机设备号
3、订单号(商家自定格式)
4、价格
5、商品名

一、在AppDelegate里面做的事情

1.设置appid

- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {

#pragma mark (可以忽略此步)设置window的rootView界面
self.window = [[UIWindow alloc]initWithFrame:[[UIScreen mainScreen] bounds]];
XYTabBarViewController *tabBar = [[XYTabBarViewController alloc]init];
//[naVC addChildViewController:login];
self.window.rootViewController = tabBar;
[self.window addSubview:tabBar.view];
self.window.backgroundColor = [UIColor whiteColor];
//self.window.rootViewController = nv;
[self.window makeKeyAndVisible];

#pragma mark - 微信支付
[WXApi registerApp:@"你的微信支付appID"];

return YES;
}

2.微信支付完毕之后回调的方法

#pragma mark - 微信支付回调

-(void)onResp:(BaseResp *)resp{
NSString *strTitle;
if ([resp isKindOfClass:[SendMessageToWXResp class]]) {
strTitle = [NSString stringWithFormat:@"发送媒体消息结果"];
}
if ([resp isKindOfClass:[PayResp class]]) {
strTitle = [NSString stringWithFormat:@"支付结果"];
switch (resp.errCode) {
case WXSuccess:
{
YHLog(@"支付结果: 成功!");

// 跳转到主界面
XYTabBarViewController *tabBar = [[XYTabBarViewController alloc]init];
self.window.rootViewController = tabBar;
[tabBar CreateAlertActionWithTitle:@"提示" AndMessage:@"支付成功"];
[self.window addSubview:tabBar.view];

}
break;
case WXErrCodeCommon:
{ //签名错误、未注册APPID、项目设置APPID不正确、注册的APPID与设置的不匹配、其他异常等

YHLog(@"支付结果: 失败!");
}
break;
case WXErrCodeUserCancel:
{ //用户点击取消并返回

}
break;
case WXErrCodeSentFail:
{ //发送失败
YHLog(@"发送失败");
}
break;
case WXErrCodeUnsupport:
{ //微信不支持
YHLog(@"微信不支持");
}
break;
case WXErrCodeAuthDeny:
{ //授权失败
YHLog(@"授权失败");
}
break;
default:
break;
}
//------------------------
}
}

3.设置、支付完毕之后 回到当前应用

#pragma mark other

- (BOOL)application:(UIApplication *)application handleOpenURL:(NSURL *)url
{
return [WXApi handleOpenURL:url delegate:self];
}
/**当用户通过其它应用启动本应用时，会回调这个方法，url参数是其它应用调用openURL:方法时传过来的。*/
- (BOOL)application:(UIApplication *)application
openURL:(NSURL *)url
sourceApplication:(NSString *)sourceApplication
annotation:(id)annotation
{
// 此处是支付宝(可以忽略)
if ([url.host isEqualToString:@"safepay"]) {
//跳转支付宝钱包进行支付，处理支付结果
[[AlipaySDK defaultService] processOrderWithPaymentResult:url standbyCallback:^(NSDictionary *resultDic) {
YHLog(@"result = %@",resultDic);
}];
}

// 微信
return
[WXApi handleOpenURL:url delegate:self];
}

二、支付界面 要处理的事情

1.点击微信支付时候做的处理

// 判断当前用户有没有安装了微信客户端
if ([WXApi isWXAppInstalled])
{
// 已经安装过的、、可以进行授权

NSString *identifierForVendor = [[UIDevice currentDevice].identifierForVendor UUIDString];
NSString *phoneIP = [getIPhoneIP getIPAddress:1];
YHLog(@"%@",identifierForVendor);

YHLog(@"phoneIP %@",phoneIP);

// 这里请求网络
[self loadWXNetWork_WithOpenid:nil withIdentifierForVendor:identifierForVendor AndPhoneIP:phoneIP];

}
else
{
[self CreateAlertActionWithTitle:@"提示" AndMessage:@"请先安装微信客户端"];
YHLog(@"请安装微信客户端");
}

2.网络请求

#pragma mark - 1.微信支付网络
-(void)loadWXNetWork_WithOpenid:(NSString *)openid withIdentifierForVendor:(NSString *)identifierForVendor AndPhoneIP:(NSString *)phoneIP
{
YHLog(@"微信支付");
//有网络的情况下，隐藏重新加载视图
NSMutableDictionary *param =  [[NSMutableDictionary  alloc]init];
YHLog(@"%@",self.goods_name);
NSString *path = [[NSString alloc]initWithFormat:kCommon_applyWay_URL_WeXinPay];

MKNetworkEngine *engine = [[MKNetworkEngine alloc]initWithHostName:kBaseHostName customHeaderFields:nil];

[param setObject:identifierForVendor forKey:@"device_info"];
//    [param setObject:openid forKey:@"openid"];
[param setObject:phoneIP forKey:@"spbill_create_ip"];
[param setObject:self.order_sn forKey:@"out_trade_no"];
[param setObject:self.goods_money forKey:@"total_fee"];
[param setObject:self.goods_name forKey:@"body"];

YHLog(@"\n设备号:%@\n手机ip:%@\n订单号:%@\n价格:%@\n订单名:%@\n",identifierForVendor,phoneIP,self.order_sn,self.goods_money,self.goods_name);

MKNetworkOperation *op = [engine operationWithPath:path params:param httpMethod:@"POST"];

//    [self.view.window showHUDWithText:@"加载中" Type:ShowLoading Enabled:YES];

[op addCompletionHandler:^(MKNetworkOperation *completedOperation) {

NSString * msgData = [completedOperation responseStringWithEncoding:NSUTF8StringEncoding];
YHLog(@"微信支付授权登录返回的数据 is %@",msgData);
id json = [completedOperation responseJSON];
NSDictionary *jd = (NSDictionary *)json;

NSDictionary *data = [jd objectForKey:@"data"];
NSDictionary *status = [jd objectForKey:@"status"];
NSNumber *succeed = [status objectForKey:@"succeed"];

if (succeed.intValue == 1) {
#pragma mark 微信支付核心代码
//发起微信支付，设置参数
PayReq *request = [[PayReq alloc] init];
//            request.openID = kWX_AppID;
request.partnerId = [data objectForKey:@"partnerId"];
request.prepayId= [data objectForKey:@"prepayid"];
request.package = [data objectForKey:@"packageValue"];
request.nonceStr= [data objectForKey:@"nonceStr"];
UInt32 timeStamp =[[data objectForKey:@"timeStamp"] intValue];
request.timeStamp= timeStamp;
request.sign = [data objectForKey:@"sign"];

// 客户端生成sign签名 // 可以使用服务器生成的
//            DataMD5 *md5 = [[DataMD5 alloc] init];
//            request.sign=[md5 createMD5SingForPay:kWX_AppID partnerid:request.partnerId prepayid:request.prepayId package:request.package noncestr:request.nonceStr timestamp:request.timeStamp];
//            //            调用微信

YHLog(@"sign %@",request.sign);
[WXApi sendReq:request];
}

//        [self.view.window showHUDWithText:nil Type:ShowDismiss Enabled:YES];

} errorHandler:^(MKNetworkOperation *completedOperation, NSError *error) {
YHLog(@"请求错误");
//        [self.view.window showHUDWithText:nil Type:ShowDismiss Enabled:YES];
}];
[engine enqueueOperation:op];
}

3.客户端生成sign(如果服务器返回，可以忽略此步)

appid、noncestr、package、partnerid、prepayid、timestamp 的字段必须要小写

(商户密钥可以在————商户平台里面获取)（第三节讲到）

DataMD5.h

#import <Foundation/Foundation.h>

@interface DataMD5 : NSObject
-(instancetype)initWithAppid:(NSString *)appid_key
mch_id:(NSString *)mch_id_key
nonce_str:(NSString *)noce_str_key
partner_id:(NSString *)partner_id
body:(NSString *)body_key
out_trade_no :(NSString *)out_trade_no_key
total_fee:(NSString *)total_fee_key
spbill_create_ip:(NSString *)spbill_create_ip_key
notify_url:(NSString *)notify_url_key
trade_type:(NSString *)trade_type_key;
///获取MD5签名
- (NSString *)getSignForMD5;
///创建发起支付时的sige签名
-(NSString *)createMD5SingForPay:(NSString *)appid_key partnerid:(NSString *)partnerid_key prepayid:(NSString *)prepayid_key package:(NSString *)package_key noncestr:(NSString *)noncestr_key timestamp:(UInt32)timestamp_key;
@end

DataMD5.h

#import "DataMD5.h"
#import <CommonCrypto/CommonDigest.h>
@interface DataMD5()
@property (nonatomic,strong) NSString *appid;
@property (nonatomic,strong) NSString *mch_id;
@property (nonatomic,strong) NSString *nonce_str;
@property (nonatomic,strong) NSString *partnerkey;
@property (nonatomic,strong) NSString *body;
@property (nonatomic,strong) NSString *out_trade_no;
@property (nonatomic,strong) NSString *total_fee;
@property (nonatomic,strong) NSString *spbill_create_ip;
@property (nonatomic,strong) NSString *notify_url;
@property (nonatomic,strong) NSString *trade_type;
@end

@implementation DataMD5
-(instancetype)initWithAppid:(NSString *)appid_key
mch_id:(NSString *)mch_id_key
nonce_str:(NSString *)noce_str_key
partner_id:(NSString *)partner_id
body:(NSString *)body_key
out_trade_no :(NSString *)out_trade_no_key
total_fee:(NSString *)total_fee_key
spbill_create_ip:(NSString *)spbill_create_ip_key
notify_url:(NSString *)notify_url_key
trade_type:(NSString *)trade_type_key{
self = [super init];
if (self) {
_appid = appid_key;
_mch_id = mch_id_key;
_nonce_str = noce_str_key;
_partnerkey = partner_id;
_body = body_key;
_out_trade_no = out_trade_no_key;
_total_fee = total_fee_key;
_spbill_create_ip = spbill_create_ip_key;
_notify_url = notify_url_key;
_trade_type = trade_type_key;

}
return self;
}
///获取sign签名
- (NSString *)getSignForMD5{
NSMutableDictionary *dic = [NSMutableDictionary dictionary];
[dic setValue:_appid forKey:@"appid"];
[dic setValue:_mch_id forKey:@"mch_id"];
[dic setValue:_nonce_str forKey:@"nonce_str"];
[dic setValue:_body forKey:@"body"];
[dic setValue:_out_trade_no forKey:@"out_trade_no"];
[dic setValue:_total_fee forKey:@"total_fee"];
[dic setValue:_spbill_create_ip forKey:@"spbill_create_ip"];
[dic setValue:_notify_url forKey:@"notify_url"];
[dic setValue:_trade_type forKey:@"trade_type"];
return [self createMd5Sign:dic];
}

//创建签名
-(NSString*) createMd5Sign:(NSMutableDictionary*)dict
{
NSMutableString *contentString  =[NSMutableString string];
NSArray *keys = [dict allKeys];
//按字母顺序排序
NSArray *sortedArray = [keys sortedArrayUsingComparator:^NSComparisonResult(id obj1, id obj2) {
return [obj1 compare:obj2 options:NSNumericSearch];
}];
//拼接字符串
for (NSString *categoryId in sortedArray) {
if (   ![[dict objectForKey:categoryId] isEqualToString:@""]
&& ![[dict objectForKey:categoryId] isEqualToString:@"sign"]
&& ![[dict objectForKey:categoryId] isEqualToString:@"key"]
)
{
[contentString appendFormat:@"%@=%@&", categoryId, [dict objectForKey:categoryId]];
}
}
//添加商户密钥key字段
[contentString appendFormat:@"key=%@", _partnerkey];
//得到MD5 sign签名
NSString *md5Sign =[self md5:contentString];

return md5Sign;
}

//创建发起支付时的sige签名
-(NSString *)createMD5SingForPay:(NSString *)appid_key partnerid:(NSString *)partnerid_key prepayid:(NSString *)prepayid_key package:(NSString *)package_key noncestr:(NSString *)noncestr_key timestamp:(UInt32)timestamp_key{
NSMutableDictionary *signParams = [NSMutableDictionary dictionary];
[signParams setObject:appid_key forKey:@"appid"];
[signParams setObject:noncestr_key forKey:@"noncestr"];
[signParams setObject:package_key forKey:@"package"];
[signParams setObject:partnerid_key forKey:@"partnerid"];
[signParams setObject:prepayid_key forKey:@"prepayid"];
[signParams setObject:[NSString stringWithFormat:@"%u",timestamp_key] forKey:@"timestamp"];

NSMutableString *contentString  =[NSMutableString string];
NSArray *keys = [signParams allKeys];
//按字母顺序排序
NSArray *sortedArray = [keys sortedArrayUsingComparator:^NSComparisonResult(id obj1, id obj2) {
return [obj1 compare:obj2 options:NSNumericSearch];
}];
//拼接字符串
for (NSString *categoryId in sortedArray) {
if (   ![[signParams objectForKey:categoryId] isEqualToString:@""]
&& ![[signParams objectForKey:categoryId] isEqualToString:@"sign"]
&& ![[signParams objectForKey:categoryId] isEqualToString:@"key"]
)
{
[contentString appendFormat:@"%@=%@&", categoryId, [signParams objectForKey:categoryId]];
}
}
//添加商户密钥key字段
[contentString appendFormat:@"key=%@", @"此处填入商家密钥"];
//    NSString *signString =[self md5:contentString];
NSString *result = [self md5:contentString];
return result;
}

-(NSString *) md5:(NSString *)str
{
const char *cStr = [str UTF8String];
//加密规则，因为逗比微信没有出微信支付demo，这里加密规则是参照安卓demo来得
unsigned char result[16]= "0123456789abcdef";
CC_MD5(cStr, (CC_LONG)strlen(cStr), result);
//这里的x是小写则产生的md5也是小写，x是大写则md5是大写，这里只能用大写，逗比微信的大小写验证很逗
return [NSString stringWithFormat:
@"%02X%02X%02X%02X%02X%02X%02X%02X%02X%02X%02X%02X%02X%02X%02X%02X",
result[0], result[1], result[2], result[3],
result[4], result[5], result[6], result[7],
result[8], result[9], result[10], result[11],
result[12], result[13], result[14], result[15]
];
}

4.到了此处，您的微信支付基本上是可以进行调用了。但是有些小伙伴调起微信支付的时候。仅仅出现一个确定按钮。

一般情况下是sign签名错误。或者有可能服务器没有返回prepayid.

验证sign:
https://pay.weixin.qq.com/wiki/tools/signverify/

5.赋上链接去查看吧

http://www.cocoachina.com/bbs/read.php?tid-321546.html