ios微信支付 注意事项
1.先到微信官网下载所使用的SDK 微信官网下载地址https://open.weixin.qq.com。
2.配置info信息
1> 在自己的工程TARGETS->Info->URL Types下填写你注册的URL Schemes .
2> 在Custom iOS Target Properties 中添加LSApplicationQueriesSchemes字段，添加上weixin
3.APPDelegate的设置
- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {
//注册微信
[WXApiregisterApp:WEIXIN_AppID];//微信
}
-(BOOL)application:(UIApplication *)application handleOpenURL:(NSURL *)url
{
return [WXApihandleOpenURL:url delegate:self];
}
-(BOOL)application:(UIApplication *)application openURL:(NSURL *)url sourceApplication:(NSString *)sourceApplication annotation:(id)annotation
{
return [WXApihandleOpenURL:url delegate:self];
}
- (BOOL)application:(UIApplication *)app openURL:(NSURL *)url options:(NSDictionary<NSString *,id> *)options
{
/*! @brief处理微信通过URL启动App时传递的数据
*
* 需要在 application:openURL:sourceApplication:annotation:或者application:handleOpenURL中调用。
* @param url微信启动第三方应用时传递过来的URL
* @param delegate WXApiDelegate对象，用来接收微信触发的消息。
* @return成功返回YES，失败返回NO。
*/
return [WXApihandleOpenURL:url delegate:self];
}
//微信支付成功后会走的代理函数
-(void) onResp:(BaseResp*)resp
{
if ([respisKindOfClass:[PayRespclass]]){
PayResp*response=(PayResp*)resp;
switch(response.errCode){
caseWXSuccess:
//服务器端查询支付通知或查询API返回的结果再提示成功
NSLog(@"支付成功");
break;
default:
NSLog(@"支付失败，retcode=%d",resp.errCode);
break;
}
}
}
4.配置统一下单接口
////////////生成签名的方法/////////////
//创建package签名
-(NSString*) createMd5Sign:(NSMutableDictionary*)dict
{
NSMutableString *contentString =[NSMutableStringstring];
NSArray *keys = [dictallKeys];
//按字母顺序排序
NSArray *sortedArray = [keyssortedArrayUsingComparator:^NSComparisonResult(id obj1,id obj2) {
return [obj1compare:obj2 options:NSNumericSearch];
}];
//拼接字符串
for (NSString *categoryIdin sortedArray) {
if ( ![[dictobjectForKey:categoryId]isEqualToString:@""]
&& ![categoryId isEqualToString:@"sign"]
&& ![categoryId isEqualToString:@"key"]
)
{
[contentString appendFormat:@"%@=%@&", categoryId, [dictobjectForKey:categoryId]];
}
}
//添加key字段
[contentString appendFormat:@"key=%@",WEIXIN_APISecret];
//得到MD5 sign签名
NSString *md5Sign =[selfgetmd5WithString:contentString];//[WXUtil md5:contentString];
return md5Sign.uppercaseString;
}
- (NSString*)getmd5WithString:(NSString *)string
{
const char* original_str=[string UTF8String];
unsignedchar digist[CC_MD5_DIGEST_LENGTH];//CC_MD5_DIGEST_LENGTH = 16
CC_MD5(original_str,strlen(original_str), digist);
NSMutableString* outPutStr = [NSMutableStringstringWithCapacity:10];
for(int i =0; i<CC_MD5_DIGEST_LENGTH;i++){
[outPutStr appendFormat:@"%02x", digist[i]];//小写x表示输出的是小写MD5，大写X表示输出的是大写MD5
}
return [outPutStrlowercaseString];
}
//附加CC_MD5_DIGEST_LENGTH需支持#import <CommonCrypto/CommonDigest.h>头文件
////////////////将参数转化为XML格式///////////////////////
//获取package带参数的签名包
-(NSString *)genPackage:(NSMutableDictionary*)packageParams
{
NSString *sign;
NSMutableString *reqPars=[NSMutableStringstring];
//生成签名
sign = [selfcreateMd5Sign:packageParams];
//生成xml的package
NSArray *keys = [packageParamsallKeys];
[reqPars appendString:@"<xml>"
];
for (NSString *categoryIdin keys) {
[reqPars appendFormat:@"<%@>%@</%@>"
, categoryId, [packageParams objectForKey:categoryId],categoryId];
}
[reqPars appendFormat:@"<sign>%@</sign>"
, sign];
[reqPars appendString:@"</xml>"
];
return [NSStringstringWithString:reqPars];
}
{
//============================================================
// V3&V4支付流程实现
//注意:参数配置请查看服务器端Demo
// 更新时间：2015年11月20日
//============================================================
if (![WXApiisWXAppInstalled])
{
[MBProgressHUDshowSuccess:[ConstantgetStringWithKey:@"WX_App_Installed"]toView:nil];
return;
}
NSString *urlString =@"https://api.mch.weixin.qq.com/pay/unifiedorder";
NSURL *url=[NSURLURLWithString:urlString];
NSMutableURLRequest *request = [NSMutableURLRequestrequestWithURL:url
cachePolicy:NSURLRequestReloadIgnoringCacheDatatimeoutInterval:20];
NSString *noncestr = [NSStringstringWithFormat:@"%d",rand()];
NSMutableDictionary *packageParams = [NSMutableDictionarydictionary];
[packageParams setObject:WEIXIN_AppID forKey:@"appid"]; //开放平台appid
[packageParams setObject:WEIXIN_MchId forKey:@"mch_id"]; //商户号
[packageParams setObject:@"WEB" forKey:@"device_info"];//支付设备号或门店号
[packageParams setObject: noncestr forKey:@"nonce_str"]; //随机串
[packageParams setObject:@"APP" forKey:@"trade_type"]; //支付类型，固定为APP
[packageParams setObject: [dictobjectForKey:@"productName"] forKey:@"body"]; //订单描述，展示给用户
[packageParams setObject: [dictobjectForKey:@"notify_url"] forKey:@"notify_url"]; //支付结果异步通知
[packageParams setObject: [dictobjectForKey:@"orderNo"] forKey:@"out_trade_no"];//商户订单号
[packageParams setObject:HTTP_spbill forKey:@"spbill_create_ip"];//发器支付的机器ip
[packageParams setObject:@"1" forKey:@"total_fee"]; //订单金额，单位为分
NSString *parseParamsResult = [selfgenPackage:packageParams];
NSData *postData = [parseParamsResultdataUsingEncoding:NSUTF8StringEncoding];
[request setHTTPMethod:@"POST"];
[request setHTTPBody:postData];
//[request setValue:@"application/json" forHTTPHeaderField:@"Content-Type"];
[NSURLConnectionsendAsynchronousRequest:requestqueue:[NSOperationQueuenew] completionHandler:^(NSURLResponse *response,NSData *data,NSError *connectionError){
dispatch_async(dispatch_get_main_queue(), ^{
if (connectionError==nil) {
//id dict = [NSJSONSerialization JSONObjectWithData:data options:NSJSONReadingMutableContainers error:nil];
NSDictionary *dict = [NSDictionarydictionaryWithXMLData:data];
//对数据库数据进行修改
if ([[dictobjectForKey:@"return_code"]isEqualToString:@"SUCCESS"])
{
//刷新完成
/*
*生成订单信息及签名
*/
PayReq *request = [[PayReqalloc] init];
/** 商家向财付通申请的商家id */
request.partnerId = [dictobjectForKey:@"mch_id"];
/** 预支付订单 */
request.prepayId= [dictobjectForKey:@"prepay_id"];
/** 商家根据财付通文档填写的数据和签名 */
request.package =@"Sign=WXPay";
/** 随机串，防重发 */
request.nonceStr= [dictobjectForKey:@"nonce_str"];
/** 时间戳，防重发 */
NSString* strtime = [[NSStringstringWithFormat:@"%f",[[NSDatedate] timeIntervalSince1970]*1000]substringWithRange:NSMakeRange(0,10)];
request.timeStamp=[ strtimedoubleValue] ;
/** 商家根据微信开放平台文档对数据做的签名 */
NSMutableDictionary *packageParams= [[NSMutableDictionaryalloc] init];
[packageParams setObject:WEIXIN_AppIDforKey:@"appid"];
[packageParams setObject:request.partnerIdforKey:@"partnerid"];
[packageParams setObject:request.prepayIdforKey:@"prepayid"];
[packageParams setObject:request.packageforKey:@"package"];
[packageParams setObject:request.nonceStrforKey:@"noncestr"];
[packageParams setObject:strtimeforKey:@"timestamp"];
//第二次签名
request.sign= [selfcreateMd5Sign:packageParams];//[dict objectForKey:@"sign"];
/*! @brief发送请求到微信，等待微信返回onResp
*
* 函数调用后，会切换到微信的界面。第三方应用程序等待微信返回onResp。微信在异步处理完成后一定会调用onResp。支持以下类型
* SendAuthReq、SendMessageToWXReq、PayReq等。
* @param req具体的发送请求，在调用函数后，请自己释放。
* @return成功返回YES，失败返回NO。
*/
BOOL ret = [WXApisendReq:request];
NSLog(@"%d",ret);
}
}
else
{
}
});
}];
}