fixed 订单空指针异常及用户信息获取

api/src/main/java/me/xiaoyan/point/api/controller/ShopOrderInfoController.java

@@ -13,6 +13,7 @@ import org.springframework.web.bind.annotation.*;
 
 import javax.annotation.PostConstruct;
 import javax.annotation.Resource;
+import java.util.HashMap;
 import java.util.concurrent.ConcurrentHashMap;
 
 /**
@@ -33,7 +34,8 @@ public class ShopOrderInfoController {
     private StringRedisTemplate stringRedisTemplate;
 
     // 是否已经没有库存
-    private ConcurrentHashMap<Long, Boolean> stockOutMap = new ConcurrentHashMap<>();
+    // TODO 优化并发加锁
+    private HashMap<Long, Boolean> stockOutMap = new HashMap<>();
     private static final String CACHE_STOCK_KEY = "goods:stock:";
 
     private String cacheKey(long gid) {
@@ -61,21 +63,23 @@ public class ShopOrderInfoController {
         }
         int uid = StpUtil.getLoginIdAsInt();
         // 如果限制用户只能购买的数量，可以添加一个map记录用户的请求数
+        int size = stockOutMap.size();
+        Long buyId = (long)data.getGoodsId();
         //1.内存判断
-        if (stockOutMap.size() > 0 && stockOutMap.get(data.getGoodsId())) {
+        if (size > 0 && stockOutMap.containsKey(buyId) && stockOutMap.get(buyId)) {
             throw BizException.create("库存不足");
         }
         //2.缓存（redis）判断
-        long count = stringRedisTemplate.opsForValue().decrement(cacheKey(data.getGoodsId()), data.getBuyCount());
+        long count = stringRedisTemplate.opsForValue().decrement(cacheKey(buyId), data.getBuyCount());
         if (count < 0) {
             log.info("stock count ===>" + count);
             // 对缓存进行库存 还原
-            stringRedisTemplate.opsForValue().increment(cacheKey(data.getGoodsId()),data.getBuyCount()); //
+            stringRedisTemplate.opsForValue().increment(cacheKey(buyId),data.getBuyCount()); //
             throw BizException.create("库存不足");
         }
         if(count == 0){
             // 此时库存没有了 , 保存到已买完的对象
-            stockOutMap.put((long)data.getGoodsId(),true);
+            stockOutMap.put(buyId,true);
         }
         //3.数据库
         try{

api/src/main/java/me/xiaoyan/point/api/controller/UserinfoController.java

@@ -3,10 +3,14 @@ package me.xiaoyan.point.api.controller;
 import cn.dev33.satoken.stp.StpUtil;
 import io.swagger.annotations.ApiOperation;
 import lombok.SneakyThrows;
+import me.xiaoyan.point.api.error.BizException;
 import me.xiaoyan.point.api.pojo.UserInfo;
+import me.xiaoyan.point.api.pojo.dto.UserInfoWithToken;
 import me.xiaoyan.point.api.pojo.vo.SignResult;
 import me.xiaoyan.point.api.pojo.vo.UserLoginData;
 import me.xiaoyan.point.api.service.UserInfoService;
+import org.springframework.beans.BeanUtils;
+import org.springframework.util.StringUtils;
 import org.springframework.validation.annotation.Validated;
 import org.springframework.web.bind.annotation.PostMapping;
 import org.springframework.web.bind.annotation.RequestBody;
@@ -38,8 +42,22 @@ public class UserinfoController {
 
     @ApiOperation("获取登录用户的基本信息")
     @RequestMapping("info")
-    public UserInfo getInfo() {
+    public UserInfoWithToken getInfo(String code) {
-        int uid = StpUtil.getLoginIdAsInt();
+        UserInfoWithToken data = new UserInfoWithToken();
-        return userInfoService.getInfoById(uid);
+        UserInfo info;
+        if (StringUtils.hasLength(code)) {
+            info = userInfoService.getInfoByCode(code);
+            if (info == null) {
+                throw BizException.create("用户不存在");
+            }
+            StpUtil.login(info.getId());
+            String token = StpUtil.getTokenInfo().getTokenValue();
+            data.setToken(token);
+        }else{
+            int uid = StpUtil.getLoginIdAsInt();
+            info = userInfoService.getInfoById(uid);
+        }
+        BeanUtils.copyProperties(info,data);
+        return data;
     }
 }

api/src/main/java/me/xiaoyan/point/api/pojo/dto/UserInfoWithToken.java

@@ -0,0 +1,15 @@
+package me.xiaoyan.point.api.pojo.dto;
+
+import lombok.AllArgsConstructor;
+import lombok.Data;
+import lombok.NoArgsConstructor;
+import me.xiaoyan.point.api.pojo.UserInfo;
+
+import java.io.Serializable;
+
+@Data
+@AllArgsConstructor
+@NoArgsConstructor
+public class UserInfoWithToken extends UserInfo implements Serializable {
+    private String token;
+}

api/src/main/java/me/xiaoyan/point/api/service/UserInfoService.java

@@ -14,4 +14,6 @@ public interface UserInfoService extends IService<UserInfo> {
     public UserInfo login(UserLoginData data);
 
     UserInfo getInfoById(Integer uid);
+
+    UserInfo getInfoByCode(String code);
 }

api/src/main/java/me/xiaoyan/point/api/service/impl/UserInfoServiceImpl.java

@@ -86,6 +86,7 @@ public class UserInfoServiceImpl extends ServiceImpl<UserInfoMapper, UserInfo>
         );
     }
 
+
     @Transactional
     @Override
     public UserInfo login(UserLoginData data) {
@@ -149,4 +150,11 @@ public class UserInfoServiceImpl extends ServiceImpl<UserInfoMapper, UserInfo>
         }
         return userinfo;
     }
+
+    @Override
+    public UserInfo getInfoByCode(String code) {
+        CodeSessionData sessionData = getOpenIdByCode(code);
+        // 使用openid查询用户信息
+        return this.getBaseMapper().selectOneByOpenId(sessionData.getOpenid());
+    }
 }