更新 UserService.java

src/main/java/com/gao/finalhw/service/UserService.java

@@ -1,7 +1,9 @@
 package com.gao.finalhw.service;
 
 import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
+import com.baomidou.mybatisplus.core.conditions.update.UpdateWrapper;
 import com.gao.finalhw.mapper.UserMapper;
+import com.gao.finalhw.model.PasswordData;
 import com.gao.finalhw.model.User;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
@@ -22,7 +24,34 @@ public class UserService {
                 .eq("password", password); // 假设字段名为 'password'
 
         User result = userMapper.selectOne(wrapper);
-        logger.info("query result: {}",result.toString());
+        logger.info("query result: {}", result);
+
         return result;
     }
+
+    public boolean register(User user) {
+        int result = userMapper.insert(user);
+        return result > 0;
+    }
+
+    public boolean updateUserPasswordByUserId(PasswordData passwordData) {
+        String currentPassword = queryPasswordByUserId(passwordData.getUserId());
+        if (currentPassword == passwordData.getOldPassword()) {
+            UpdateWrapper<User> updateWrapper = new UpdateWrapper<>();
+            updateWrapper.eq("user_id", passwordData.getUserId())
+                    .set("password", passwordData.getNewPassword());
+
+            return userMapper.update(null, updateWrapper) > 0;
+        } else {
+            return false;
+        }
+    }
+
+    public String queryPasswordByUserId(String userId) {
+        QueryWrapper<User> queryWrapper = new QueryWrapper<>();
+        queryWrapper.select("password").eq("user_id", userId);
+
+        User user = userMapper.selectOne(queryWrapper);
+        return user != null ? user.getPassword() : null;
+    }
 }