content: package com.ruoyi.web.controller.monitor;
  
  import java.util.ArrayList;
  import java.util.Collection;
  import java.util.HashMap;
  import java.util.List;
  import java.util.Map;
  import java.util.Properties;
  import java.util.Set;
  import java.util.TreeSet;
  import org.springframework.beans.factory.annotation.Autowired;
  import org.springframework.data.redis.core.RedisCallback;
  import org.springframework.data.redis.core.RedisTemplate;
  import org.springframework.security.access.prepost.PreAuthorize;
  import org.springframework.web.bind.annotation.DeleteMapping;
  import org.springframework.web.bind.annotation.GetMapping;
  import org.springframework.web.bind.annotation.PathVariable;
  import org.springframework.web.bind.annotation.RequestMapping;
  import org.springframework.web.bind.annotation.RestController;
  import com.ruoyi.common.constant.CacheConstants;
  import com.ruoyi.common.core.domain.AjaxResult;
  import com.ruoyi.common.utils.StringUtils;
  import com.ruoyi.system.domain.SysCache;
  
  /**
   * 缓存监控
   *
   * @author ruoyi
   */
  @RestController
  @RequestMapping("/monitor/cache")
  public class CacheController
  {
      @Autowired
      private RedisTemplate<String, String> redisTemplate;
  
      private final static List<SysCache> caches = new ArrayList<SysCache>();
      {
          caches.add(new SysCache(CacheConstants.LOGIN_TOKEN_KEY, "用户信息"));
          caches.add(new SysCache(CacheConstants.SYS_CONFIG_KEY, "配置信息"));
          caches.add(new SysCache(CacheConstants.SYS_DICT_KEY, "数据字典"));
          caches.add(new SysCache(CacheConstants.CAPTCHA_CODE_KEY, "验证码"));
          caches.add(new SysCache(CacheConstants.REPEAT_SUBMIT_KEY, "防重提交"));
          caches.add(new SysCache(CacheConstants.RATE_LIMIT_KEY, "限流处理"));
          caches.add(new SysCache(CacheConstants.PWD_ERR_CNT_KEY, "密码错误次数"));
          caches.add(new SysCache(CacheConstants.SUBSCRIPTION_NOTIFICATION, "通知订阅"));
      }
  
      @PreAuthorize("@ss.hasPermi('monitor:cache:list')")
      @GetMapping()
      public AjaxResult getInfo() throws Exception
      {
          Properties info = (Properties) redisTemplate.execute((RedisCallback<Object>) connection -> connection.info());
          Properties commandStats = (Properties) redisTemplate.execute((RedisCallback<Object>) connection -> connection.info("commandstats"));
          Object dbSize = redisTemplate.execute((RedisCallback<Object>) connection -> connection.dbSize());
  
          Map<String, Object> result = new HashMap<>(3);
          result.put("info", info);
          result.put("dbSize", dbSize);
  
          List<Map<String, String>> pieList = new ArrayList<>();
          commandStats.stringPropertyNames().forEach(key -> {
              Map<String, String> data = new HashMap<>(2);
              String property = commandStats.getProperty(key);
              data.put("name", StringUtils.removeStart(key, "cmdstat_"));
              data.put("value", StringUtils.substringBetween(property, "calls=", ",usec"));
              pieList.add(data);
          });
          result.put("commandStats", pieList);
          return AjaxResult.success(result);
      }
  
      @PreAuthorize("@ss.hasPermi('monitor:cache:list')")
      @GetMapping("/getNames")
      public AjaxResult cache()
      {
          return AjaxResult.success(caches);
      }
  
      @PreAuthorize("@ss.hasPermi('monitor:cache:list')")
      @GetMapping("/getKeys/{cacheName}")
      public AjaxResult getCacheKeys(@PathVariable String cacheName)
      {
          Set<String> cacheKeys = redisTemplate.keys(cacheName + "*");
          return AjaxResult.success(new TreeSet<>(cacheKeys));
      }
  
      @PreAuthorize("@ss.hasPermi('monitor:cache:list')")
      @GetMapping("/getValue/{cacheName}/{cacheKey}")
      public AjaxResult getCacheValue(@PathVariable String cacheName, @PathVariable String cacheKey)
      {
          String cacheValue = redisTemplate.opsForValue().get(cacheKey);
          SysCache sysCache = new SysCache(cacheName, cacheKey, cacheValue);
          return AjaxResult.success(sysCache);
      }
  
      @PreAuthorize("@ss.hasPermi('monitor:cache:list')")
      @DeleteMapping("/clearCacheName/{cacheName}")
      public AjaxResult clearCacheName(@PathVariable String cacheName)
      {
          Collection<String> cacheKeys = redisTemplate.keys(cacheName + "*");
          redisTemplate.delete(cacheKeys);
          return AjaxResult.success();
      }
  
      @PreAuthorize("@ss.hasPermi('monitor:cache:list')")
      @DeleteMapping("/clearCacheKey/{cacheKey}")
      public AjaxResult clearCacheKey(@PathVariable String cacheKey)
      {
          redisTemplate.delete(cacheKey);
          return AjaxResult.success();
      }
  
      @PreAuthorize("@ss.hasPermi('monitor:cache:list')")
      @DeleteMapping("/clearCacheAll")
      public AjaxResult clearCacheAll()
      {
          Collection<String> cacheKeys = redisTemplate.keys("*");
          redisTemplate.delete(cacheKeys);
          return AjaxResult.success();
      }
  }
  