微信支付（1）

要做微信支付的第一步就是在微信获取用户信息（微信登录）
先讲讲怎么做微信登录

1.配置好微信公众号的微信的appid和appsecert

2.配置微信的ip白名单

3.配置微信公众号的网页授权的域名

配置好这些可以获取用户信息了。我贴出代码

public class WxLoginController {
   //AppId
   public static final String WX_APP_ID = "xxxxxxxxxx";
   //AppSecret
   public static final String WX_APP_KEY = "xxxxxxxxx";


   @Autowired
   private SystemService systemService;

   @Autowired
   private BywxshareService bywxshareService;

   /**
   * 微信登录
   * @param req
   * @param resp
   * @return
   * @throws IOException
   */
   @RequestMapping(value ="wxlogin")
   @ResponseBody
   public Map<String, Object> getOpenid(HttpServletRequest req,HttpServletResponse resp) throws IOException{
       SetRespHander.setHander(resp);
       HashMap<String, Object> m=new HashMap<String, Object>();
       if(req.getParameter("code")==null){
           m.put("status", 401);
           m.put("message","参数为空");
           return m;
       }
       String code=req.getParameter("code");
       //发送请求获取openid
       BufferedReader in = null;
       URL tirc = new URL("https://api.weixin.qq.com/sns/oauth2/access_token?appid="+WX_APP_ID+"&secret="+WX_APP_KEY+"&code="+code+"&grant_type=authorization_code");

in = new BufferedReader(new InputStreamReader(tirc.openStream(),"UTF-8"));
String res;
StringBuilder sb = new StringBuilder("");
while((res = in.readLine())!=null){
sb.append(res.trim());
}
String str = sb.toString();
JSONObject parseObject = JSON.parseObject(str);
System.out.println(str);
String openid=parseObject.getString("openid");
String access_token=parseObject.getString("access_token");
if(openid==null){
   m.put("status", 401);
   m.put("message", "未关注公众号，请关注");
   return m;
}
//判断openid数据库是否存在
User usersBywxopenid = systemService.getUsersBywxopenid(openid);
if(usersBywxopenid==null){
   //获取微信用户的详细信息
   String[] S = GetNicknameAndHeadimgurl(openid);
   //创建一个新用户
   List<Role> roleList = Lists.newArrayList();
   Role role = new Role();
           role=systemService.findRoleIdByEnName("vip");
           roleList.add(role);
   User user=new User();
   user.setRoleList(roleList);
   user.setCreateDate(new Date());
   user.setId(CreateIdUtil.Createid());
   user.setName(S[0]);
   user.setPhoto(S[1]);
   user.setWecatopenid(openid);
   systemService.insertUserRole(user);
   systemService.insertUser(user);
   req.getSession().setAttribute(Constants.FRONT_USER_SESSION, user);
   m.put("status", 200);
           return m;
}else{
   //更新用户的昵称和头像
   String[] S = GetNicknameAndHeadimgurl(openid);
   System.out.println(S[0]+S[1]);
   usersBywxopenid.setName(S[0]);
   usersBywxopenid.setPhoto(S[1]);
   systemService.updateUserInfo(usersBywxopenid);
   req.getSession().setAttribute(Constants.FRONT_USER_SESSION, usersBywxopenid);
   m.put("status", 200);
   return m;
}

   }


   /**
   * 判断用户登录没有
   */
   @RequestMapping(value="isUserlogin")
   @ResponseBody
   public Map<String, Object> isUserlogin(HttpServletRequest req,HttpServletResponse resp){
       SetRespHander.setHander(resp);
       HashMap<String, Object> m=new HashMap<String, Object>();
       if(req.getSession().getAttribute(Constants.FRONT_USER_SESSION)==null){
           m.put("status", 403);//获取失败
           m.put("message","未登录");
           return m;
       }
       m.put("status", 200);
       return m;
   }


   /**
   * 获取用户信息
   * @param req
   * @param resp
   * @return
   */
   @RequestMapping(value="getuserinfo")
   @ResponseBody
   public Map<String, Object> getuserinfo(HttpServletRequest req,HttpServletResponse resp){
       SetRespHander.setHander(resp);
       HashMap<String, Object> m=new HashMap<String, Object>();
       if(req.getSession().getAttribute(Constants.FRONT_USER_SESSION)==null){
           m.put("status", 403);//获取失败
           m.put("message","未登录");
           return m;
       }
       User currentUser = (User) req.getSession().getAttribute(Constants.FRONT_USER_SESSION);
       m.put("status", 200);
       m.put("data", currentUser);
       return m;
   }


   /**
   * 获取access_token和jsapi_ticket
   * @param in
   * @param ticket
   * @return
   * @throws IOException
   */
   public static String[] getTticket( BufferedReader in,String ticket) throws IOException{
       //获取token
       URL tirc = new URL("https://api.weixin.qq.com/cgi-bin/token?grant_type=client_credential&appid=xxxxxxxxx&secret=xxxxxxx");
in = new BufferedReader(new InputStreamReader(tirc.openStream(),"UTF-8"));
String res;
StringBuilder sb = new StringBuilder("");
while((res = in.readLine())!=null){
sb.append(res.trim());
}
String str = sb.toString();
JSONObject parseObject = JSON.parseObject(str);
String token=parseObject.getString("access_token");
//获取ticket
URL tir = new URL("https://api.weixin.qq.com/cgi-bin/ticket/getticket?access_token="+token+"&type=jsapi");
in = new BufferedReader(new InputStreamReader(tir.openStream(),"UTF-8"));
String re;
StringBuilder s = new StringBuilder("");
while((re = in.readLine())!=null){
s.append(re.trim());
}
String st = s.toString();
parseObject= JSON.parseObject(st);
ticket=parseObject.getString("ticket");
String cache[]={token,ticket};
return cache;
   }
}

微信获取access_token是有时效的，有效期是两个小时。可以通过缓存实现刷新它，这里我是将获取的数据通过数据库存放。

并在它过期的时候刷新它的。

贴出数据库的表

做好微信登录了。

下面介绍微信支付

猜你喜欢