!119 【轻量级 PR】新增缓存监控接口

Merge pull request !119 from MichelleChung/2.X-dev

ruoyi-modules/ruoyi-system/src/main/java/org/dromara/system/controller/monitor/CacheController.java

@@ -0,0 +1,55 @@
+package org.dromara.system.controller.monitor;
+
+import cn.dev33.satoken.annotation.SaCheckPermission;
+import lombok.RequiredArgsConstructor;
+import org.dromara.common.core.domain.R;
+import org.dromara.common.core.utils.StringUtils;
+import org.dromara.system.domain.vo.CacheListInfoVo;
+import org.redisson.spring.data.connection.RedissonConnectionFactory;
+import org.springframework.data.redis.connection.RedisConnection;
+import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RestController;
+
+import java.util.*;
+
+/**
+ * 缓存监控
+ *
+ * @author Lion Li
+ */
+@RequiredArgsConstructor
+@RestController
+@RequestMapping("/cache")
+public class CacheController {
+
+    private final RedissonConnectionFactory connectionFactory;
+
+    /**
+     * 获取缓存监控列表
+     */
+    @SaCheckPermission("monitor:cache:list")
+    @GetMapping()
+    public R<CacheListInfoVo> getInfo() throws Exception {
+        RedisConnection connection = connectionFactory.getConnection();
+        Properties commandStats = connection.commands().info("commandstats");
+
+        List<Map<String, String>> pieList = new ArrayList<>();
+        if (commandStats != null) {
+            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);
+            });
+        }
+
+        CacheListInfoVo infoVo = new CacheListInfoVo();
+        infoVo.setInfo(connection.commands().info());
+        infoVo.setDbSize(connection.commands().dbSize());
+        infoVo.setCommandStats(pieList);
+        return R.ok(infoVo);
+    }
+
+}