完成用户封禁，解封，封禁查询（由于没有管理员，所以现在先用普通用户测试封禁）

src/main/java/com/bao/dating/controller/AdminController.java

@@ -1,4 +1,51 @@
 package com.bao.dating.controller;
 
+import com.bao.dating.common.Result;
+import com.bao.dating.common.ResultCode;
+import com.bao.dating.pojo.dto.UserBanDTO;
+import com.bao.dating.pojo.entity.UserBan;
+import com.bao.dating.service.UserBanService;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.web.bind.annotation.*;
+
+/**
+ * 管理员控制器
+ * @author lenovo
+ */
+@RestController
+@RequestMapping("/admin")
 public class AdminController {
+    @Autowired
+    private UserBanService userBanService;
+
+    /**
+     * 封禁用户
+     */
+    @PostMapping("/{userId}/ban")
+    public Result<?> banUser(@PathVariable Long userId,
+                             @RequestBody UserBanDTO userBanDTO) {
+        userBanDTO.setUserId(userId);
+        userBanService.banUser(userBanDTO);
+        return Result.success(ResultCode.SUCCESS, "封禁成功");
+    }
+
+    /**
+     * 解封用户
+     */
+    @PostMapping("/{userId}/unban")
+    public Result<?> unbanUser(@PathVariable Long userId) {
+
+        userBanService.unbanUser(userId);
+        return Result.success(ResultCode.SUCCESS, "解封成功");
+    }
+
+    /**
+     * 查询封禁状态
+     */
+    @GetMapping("/{userId}/banInfo")
+    public Result<UserBan> banInfo(@PathVariable Long userId) {
+
+        UserBan ban = userBanService.getActiveBan(userId);
+        return Result.success(ResultCode.SUCCESS, "查询成功", ban);
+    }
 }

src/main/java/com/bao/dating/interceptor/TokenInterceptor.java

@@ -74,7 +74,7 @@ public class TokenInterceptor implements HandlerInterceptor {
             String banKey = "user:ban:" + userId;
             if (Boolean.TRUE.equals(redisTemplate.hasKey(banKey))) {
                 String reason = String.valueOf(redisTemplate.opsForValue().get(banKey));
-                log.error("用户 {} 已被封禁：{}", userId, reason);
+                log.error("用户 {} 已被封禁，原因：{}", userId, reason);
 
                 response.setStatus(403);
                 response.setContentType("application/json;charset=UTF-8");

src/main/java/com/bao/dating/mapper/UserBanMapper.java

@@ -0,0 +1,43 @@
+package com.bao.dating.mapper;
+
+import com.bao.dating.pojo.entity.UserBan;
+import org.apache.ibatis.annotations.Mapper;
+import org.apache.ibatis.annotations.Param;
+
+@Mapper
+public interface UserBanMapper {
+
+    /**
+     * 新增封禁记录
+     * @param userBan 封禁记录
+     * @return 影响行数
+     */
+    int insertBan(UserBan userBan);
+
+    /**
+     * 查询是否存在生效中的封禁
+     * @param userId 用户ID
+     * @return 存在返回1，不存在返回0
+     */
+    int existsActiveBan(@Param("userId") Long userId);
+
+    /**
+     * 查询生效中的封禁记录
+     * @param userId 用户ID
+     * @return 封禁记录
+     */
+    UserBan selectActiveBan(@Param("userId") Long userId);
+
+    /**
+     * 解封用户
+     * @param userId 用户ID
+     * @return 影响行数
+     */
+    int unbanUser(@Param("userId") Long userId);
+
+    /**
+     * 定时任务：过期自动解封
+     * @return 影响行数
+     */
+    int updateExpiredBans();
+}

src/main/java/com/bao/dating/pojo/dto/UserBanDTO.java

@@ -0,0 +1,13 @@
+package com.bao.dating.pojo.dto;
+import lombok.Data;
+
+/**
+ * 用户封禁数据传输对象
+ * @author KilLze
+ */
+@Data
+public class UserBanDTO {
+    private Long userId;
+    private String reason;
+    private Integer banDays;
+}

src/main/java/com/bao/dating/service/UserBanService.java

@@ -0,0 +1,31 @@
+package com.bao.dating.service;
+
+import com.bao.dating.pojo.dto.UserBanDTO;
+import com.bao.dating.pojo.entity.UserBan;
+
+/**
+ * 用户封禁服务接口
+ * @author KilLze
+ */
+public interface UserBanService {
+
+    /**
+     * 封禁用户
+     * @param userBanDTO 用户封禁信息
+     *
+     */
+    void banUser(UserBanDTO userBanDTO);
+
+    /**
+     * 解封用户
+     * @param userId 用户ID
+     */
+    void unbanUser(Long userId);
+
+    /**
+     * 查询封禁信息
+     * @param userId 用户ID
+     * @return 封禁信息
+     */
+    UserBan getActiveBan(Long userId);
+}

src/main/java/com/bao/dating/service/impl/UserBanServiceImpl.java

@@ -0,0 +1,74 @@
+package com.bao.dating.service.impl;
+
+import com.bao.dating.mapper.UserBanMapper;
+import com.bao.dating.pojo.dto.UserBanDTO;
+import com.bao.dating.pojo.entity.UserBan;
+import com.bao.dating.service.UserBanService;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.data.redis.core.RedisTemplate;
+import org.springframework.stereotype.Service;
+
+import java.time.LocalDateTime;
+import java.util.concurrent.TimeUnit;
+
+@Service
+public class UserBanServiceImpl implements UserBanService {
+
+    @Autowired
+    private UserBanMapper userBanMapper;
+
+    @Autowired
+    private RedisTemplate<String, Object> redisTemplate;
+
+    @Override
+    public void banUser(UserBanDTO userBanDTO) {
+
+        // 已被封禁，直接拒绝
+        if (userBanMapper.existsActiveBan(userBanDTO.getUserId()) > 0) {
+            throw new RuntimeException("用户已处于封禁状态");
+        }
+
+        LocalDateTime now = LocalDateTime.now();
+        LocalDateTime endTime = userBanDTO.getBanDays() == null ? null : now.plusDays(userBanDTO.getBanDays());
+
+        // 1. 写数据库
+        UserBan ban = new UserBan();
+        ban.setUserId(userBanDTO.getUserId());
+        ban.setReason(userBanDTO.getReason());
+        ban.setBanStartTime(now);
+        ban.setBanEndTime(endTime);
+        ban.setStatus(1);
+        userBanMapper.insertBan(ban);
+
+        // 2. 写 Redis
+        String key = "user:ban:" + userBanDTO.getUserId();
+        if (userBanDTO.getBanDays() == null) {
+            redisTemplate.opsForValue().set(key, userBanDTO.getReason());
+        } else {
+            redisTemplate.opsForValue().set(key, userBanDTO.getReason(), userBanDTO.getBanDays(), TimeUnit.DAYS);
+        }
+
+        // 3. 踢下线
+        redisTemplate.delete("login:token:" + userBanDTO.getUserId());
+    }
+
+    /**
+     * 解封用户
+     */
+    @Override
+    public void unbanUser(Long userId) {
+        // 更新数据库
+        userBanMapper.unbanUser(userId);
+
+        // 删除 Redis
+        redisTemplate.delete("user:ban:" + userId);
+    }
+
+    /**
+     * 获取用户封禁信息
+     */
+    @Override
+    public UserBan getActiveBan(Long userId) {
+        return userBanMapper.selectActiveBan(userId);
+    }
+}

src/main/java/com/bao/dating/util/UserBanUtil.java

@@ -5,6 +5,8 @@ import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.data.redis.core.RedisTemplate;
 import org.springframework.stereotype.Component;
 
+import java.util.concurrent.TimeUnit;
+
 /**
  * 用户封禁验证工具类
  * 提供统一的用户封禁状态检查功能
@@ -27,7 +29,27 @@ public class UserBanUtil {
         String banKey = "user:ban:" + userId;
         if (Boolean.TRUE.equals(redisTemplate.hasKey(banKey))) {
             String reason = (String) redisTemplate.opsForValue().get(banKey);
-            throw new RuntimeException("账号已被封禁：" + reason);
+            
+            // 获取剩余过期时间（秒）
+            Long ttlSeconds = redisTemplate.getExpire(banKey, TimeUnit.SECONDS);
+            String remainingTime = "";
+            if (ttlSeconds != null && ttlSeconds > 0) {
+                long days = ttlSeconds / (24 * 3600);
+                long hours = (ttlSeconds % (24 * 3600)) / 3600;
+                long minutes = (ttlSeconds % 3600) / 60;
+                
+                if (days > 0) {
+                    remainingTime = "，剩余时间：" + days + "天" + hours + "小时";
+                } else if (hours > 0) {
+                    remainingTime = "，剩余时间：" + hours + "小时" + minutes + "分钟";
+                } else {
+                    remainingTime = "，剩余时间：" + minutes + "分钟";
+                }
+            } else {
+                remainingTime = "，永久封禁";
+            }
+            
+            throw new RuntimeException("账号已被封禁，原因：" + reason + remainingTime);
         }
     }
 

src/main/resources/com/bao/dating/mapper/UserBanMapper.xml

@@ -0,0 +1,50 @@
+<?xml version="1.0" encoding="UTF-8" ?>
+<!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN"
+        "http://mybatis.org/dtd/mybatis-3-mapper.dtd">
+
+<mapper namespace="com.bao.dating.mapper.UserBanMapper">
+
+    <!--  向数据库中添加用户封禁信息 -->
+    <insert id="insertBan" useGeneratedKeys="true" keyProperty="id">
+        INSERT INTO user_ban
+            (user_id, reason, ban_start_time, ban_end_time, status)
+        VALUES
+            (#{userId}, #{reason}, #{banStartTime}, #{banEndTime}, #{status})
+    </insert>
+
+    <!--  查询指定用户是否存在未过期的封禁信息 -->
+    <select id="existsActiveBan" resultType="int">
+        SELECT COUNT(1)
+        FROM user_ban
+        WHERE user_id = #{userId}
+          AND status = 1
+        LIMIT 1
+    </select>
+
+    <!--   查询指定用户是否存在未过期的封禁信息 -->
+    <select id="selectActiveBan" resultType="com.bao.dating.pojo.entity.UserBan">
+        SELECT *
+        FROM user_ban
+        WHERE user_id = #{userId}
+          AND status = 1
+        LIMIT 1
+    </select>
+
+     <!--   解封指定用户 -->
+    <update id="unbanUser">
+        UPDATE user_ban
+        SET status = 0
+        WHERE user_id = #{userId}
+          AND status = 1
+    </update>
+
+     <!--   批量更新已过期的封禁信息 -->
+    <update id="updateExpiredBans">
+        UPDATE user_ban
+        SET status = 0
+        WHERE status = 1
+          AND ban_end_time IS NOT NULL
+          AND ban_end_time &lt; NOW()
+    </update>
+
+</mapper>