WX_PAY

Params

 1.应用APPID
 2.微信支付商户号
 3.微信支付商户密钥
 

CS_XML

字符：

 
 应用APPID
 公司-描述
 微信支付商户号
 VVA6TKJMECEJDDCSI0M04SI73S9IDKO8
 http://www.weixin.qq.com/wxpay/pay.php
 1499224427384612
 10.50.45.40
 1
 APP
 E458129168DADC4E0CC5EDB738CF89C9
 
 

请求

 //预付单与查询订单请求
 NSMutableURLRequest *request = [[NSMutableURLRequest alloc]
 initWithURL: [NSURL URLWithString:requestType==wxPay?@"https://api.mch.weixin.qq.com/pay/unifiedorder":@"https://api.mch.weixin.qq.com/pay/orderquery"]
 cachePolicy:NSURLRequestReloadIgnoringLocalCacheData
 timeoutInterval:12];

[request setHTTPMethod:@"POST"];

[request addValue:@"text/xml" forHTTPHeaderField:@"Content-Type"];

[request setValue:@"UTF-8" forHTTPHeaderField:@"charset"];

[request setHTTPBody:[xml dataUsingEncoding:NSUTF8StringEncoding]];

NSURLSessionDataTask * dataTask = [[NSURLSession sharedSession]
                                   dataTaskWithRequest:request
                                   completionHandler:^(NSData * _Nullable data, NSURLResponse * _Nullable response, NSError * _Nullable error) {

//亲,你的代码
 }];
 [dataTask resume];
 

解析

 //H文件

import 
@interface HDXmlParser : NSObject
 {
 NSXMLParser* xmlParser;
 NSMutableString* valBuffer;
 NSMutableDictionary* dictionary;
 NSError* lastError;
 }
/** xml解析 */

(NSDictionary)parseData:(NSData)data;

@end
 ##########华丽分割线#########
 //M文件
import "HDXmlParser.h"
@implementation HDXmlParser

(NSDictionary)parseData:(NSData)data
 {
 HDXmlParser* parser = [[HDXmlParser alloc] init];
 return [parser parseData:data];
 }


(NSDictionary)parseData:(NSData)data
 {
 lastError = nil;
 dictionary = [NSMutableDictionary new];
 valBuffer = [NSMutableString string];
 xmlParser = [[NSXMLParser alloc] initWithData:data];
 [xmlParser setDelegate:self];
 [xmlParser parse];
 if(lastError)
 return nil;
 return [dictionary copy];
 }
(void)parser:(NSXMLParser)parser foundCharacters:(NSString)string{
 [valBuffer setString:string];
 }
 
(void)parser:(NSXMLParser)parser
 didEndElement:(NSString)elementName
 namespaceURI:(NSString)namespaceURI
 qualifiedName:(NSString)qName{
 
if([valBuffer isEqualToString:@"\n"]==NO &&
 [elementName isEqualToString:@"root"]==NO)
 {
 [dictionary setObject:[valBuffer copy] forKey:elementName];
 }
 }
 
(void)parser:(NSXMLParser)parser parseErrorOccurred:(NSError)parseError
 {
 lastError = parseError;
 }
(void)parser:(NSXMLParser)parser validationErrorOccurred:(NSError)validationError
 {
 lastError = validationError;
 }

@end
 

TOOL

作为NSString扩展 依赖于：

md5-方法1

 
(NSString *)md5String:(NSString *)str {
 
const char *myPasswd = [str UTF8String ];
 
unsigned char mdc[ 16 ];
 
CC_MD5 (myPasswd, ( CC_LONG ) strlen (myPasswd), mdc);
 
NSMutableString *md5String = [ NSMutableString string ];
 
for ( int i = 0 ; i< 16 ; i++) {
 
  [md5String appendFormat : @"%02x" ,mdc[i]];
 
}
 
NSString *md5Str = [md5String uppercaseString];
 
return md5Str;
 

}
 

md5-方法2

 
( NSString *)md5StringNB:( NSString *)str {
 
const char *myPasswd = [str UTF8String ];
 
unsigned char mdc[ 16 ];
 
CC_MD5 (myPasswd, ( CC_LONG ) strlen (myPasswd), mdc);
 
NSMutableString *md5String = [ NSMutableString string ];
 
[md5String appendFormat : @"%02x" ,mdc[ 0 ]];
 
for ( int i = 1 ; i< 16 ; i++) {
 
  [md5String appendFormat : @"%02x" ,mdc[i]^mdc[ 0 ]];
 
}
 
NSString *md5Str = [md5String uppercaseString];
 
return md5Str;
 

}
 

获取IP地址

 
(NSString *)getIPAddress {
 
int sockfd =socket(AF_INET,SOCK_DGRAM, 0);
 
// if (sockfd < 0) return nil;
 
NSMutableArray *ips = [NSMutableArray array];
 
int BUFFERSIZE =4096;
 
struct ifconf ifc;
 
char buffer[BUFFERSIZE], *ptr, lastname[IFNAMSIZ], *cptr;
 
struct ifreq *ifr, ifrcopy;
 
ifc.ifc_len = BUFFERSIZE;
 
ifc.ifc_buf = buffer;
 
if (ioctl(sockfd,SIOCGIFCONF, &ifc) >= 0){
 
  for (ptr = buffer; ptr < buffer + ifc.ifc_len; ){
      
      ifr = (struct ifreq *)ptr;
      
      int len =sizeof(struct sockaddr);
      
      if (ifr->ifr_addr.sa_len > len) {
          
          len = ifr->ifr_addr.sa_len;
          
      }
      
      ptr += sizeof(ifr->ifr_name) + len;
      
      if (ifr->ifr_addr.sa_family !=AF_INET) continue;
      
      if ((cptr = (char *)strchr(ifr->ifr_name,':')) != NULL) *cptr =0;
      
      if (strncmp(lastname, ifr->ifr_name,IFNAMSIZ) == 0)continue;
      
      memcpy(lastname, ifr->ifr_name,IFNAMSIZ);
      
      ifrcopy = *ifr;
      
      ioctl(sockfd,SIOCGIFFLAGS, &ifrcopy);
      
      if ((ifrcopy.ifr_flags &IFF_UP) == 0)continue;
      
      
      
      NSString *ip = [NSString stringWithFormat:@"%s",inet_ntoa(((struct sockaddr_in *)&ifr->ifr_addr)->sin_addr)];
      
      [ips addObject:ip];
      
  }
 
}
 
close(sockfd);
 
NSString *deviceIP =@"";
 
for (int i=0; i < ips.count; i++)
 
{
 
  if (ips.count >0)
      
  {
      deviceIP = [NSString stringWithFormat:@"%@",ips.lastObject];
  }
 
}
 return deviceIP;
 

}
 

获取随机数

 
(NSString *)getNonce_str {
 
NSArray *sourceStr = @[@"0",@"1",@"2",@"3",@"4",@"5",@"6",@"7",@"8",@"9",
 @"A",@"B",@"C",@"D",@"E",@"F",@"G",@"H",@"I",@"J",
 @"K",@"L",@"M",@"N",@"O",@"P",@"Q",@"R",@"S",@"T",
 @"U",@"V",@"W",@"X",@"Y",@"Z"];
 
NSString *resultStr = [[NSMutableString alloc] init];
 
for (int i = 0; i < 32; i ++) {
 
  int value = arc4random() % 32;
  
  resultStr = [resultStr stringByAppendingString:[NSString stringWithFormat:@"%@",sourceStr[value]]];
 
}
 
return [NSString stringWithString:resultStr];
 

}

获取时间戳-(10位)

 time_t now;
 time(&now);
 timeStamp = (UInt32)[[NSString stringWithFormat:@"%ld", now] integerValue];
 

WXDOC

https://pay.weixin.qq.com/wiki/doc/api/app/app.php?chapter=8_5