add: 登录

src/main/java/com/dota/nexus/service/impl/UserServiceImpl.java

@@ -0,0 +1,27 @@
+package com.dota.nexus.service.impl;
+
+import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
+import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
+import com.dota.nexus.entity.User;
+import com.dota.nexus.mapper.UserMapper;
+import com.dota.nexus.service.UserService;
+import com.dota.nexus.util.GlobalMap;
+import com.dota.nexus.util.PasswordUtil;
+import org.springframework.stereotype.Service;
+
+import java.util.UUID;
+
+@Service
+public class UserServiceImpl extends ServiceImpl<UserMapper, User> implements UserService {
+    public String login(String username, String password) throws Exception {
+        var q = new LambdaQueryWrapper<User>();
+        q.eq(User::getName, username);
+        var u = this.baseMapper.selectOne(q);
+        if (u!=null && PasswordUtil.verify(password, u.getPassword())) {
+            var uuid = UUID.randomUUID().toString();
+            GlobalMap.put(uuid, u.getId());
+            return uuid;
+        }
+        return null;
+    }
+}