解决升级undertow后，性能监控tomcat信息tab项展示的问题

jeecg-boot/jeecg-module-system/jeecg-system-biz/src/main/java/org/jeecg/config/init/UndertowConfiguration.java

@@ -1,7 +1,10 @@
 package org.jeecg.config.init;
 
 import io.undertow.server.DefaultByteBufferPool;
+import io.undertow.server.handlers.BlockingHandler;
 import io.undertow.websockets.jsr.WebSocketDeploymentInfo;
+import org.jeecg.modules.monitor.actuator.undertow.CustomUndertowMetricsHandler;
+import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.boot.web.embedded.undertow.UndertowServletWebServerFactory;
 import org.springframework.boot.web.server.WebServerFactoryCustomizer;
 import org.springframework.context.annotation.Configuration;
@@ -12,7 +15,14 @@ import org.springframework.context.annotation.Configuration;
  * 解决启动提示： WARN  io.undertow.websockets.jsr:68 - UT026010: Buffer pool was not set on WebSocketDeploymentInfo, the default pool will be used
  */
 @Configuration
-public class UndertowConfiguration implements WebServerFactoryCustomizer<UndertowServletWebServerFactory>{
+public class UndertowConfiguration implements WebServerFactoryCustomizer<UndertowServletWebServerFactory> {
+
+    /**
+     * 自定义undertow监控指标工具类
+     * for [QQYUN-11902]tomcat 替换undertow 这里的功能还没修改
+     */
+    @Autowired
+    private CustomUndertowMetricsHandler customUndertowMetricsHandler;
 
     @Override
     public void customize(UndertowServletWebServerFactory factory) {
@@ -24,6 +34,9 @@ public class UndertowConfiguration implements WebServerFactoryCustomizer<Underto
             webSocketDeploymentInfo.setBuffers(new DefaultByteBufferPool(true, 8192));
             
             deploymentInfo.addServletContextAttribute("io.undertow.websockets.jsr.WebSocketDeploymentInfo", webSocketDeploymentInfo);
+
+            // 添加自定义 监控 handler
+            deploymentInfo.addInitialHandlerChainWrapper(next -> new BlockingHandler(customUndertowMetricsHandler.wrap(next)));
         });
     }
 }

jeecg-boot/jeecg-module-system/jeecg-system-biz/src/main/java/org/jeecg/modules/monitor/actuator/undertow/CustomUndertowMetricsHandler.java

@@ -0,0 +1,88 @@
+package org.jeecg.modules.monitor.actuator.undertow;
+
+import io.micrometer.core.instrument.MeterRegistry;
+import io.undertow.server.HttpHandler;
+import io.undertow.server.HttpServerExchange;
+import io.undertow.server.session.*;
+import org.springframework.stereotype.Component;
+
+import java.util.concurrent.atomic.AtomicInteger;
+import java.util.concurrent.atomic.LongAdder;
+
+/**
+ * 自定义undertow监控指标工具类
+ * for [QQYUN-11902]tomcat 替换undertow 这里的功能还没修改
+ * @author chenrui
+ * @date 2025/4/8 19:06
+ */
+@Component("jeecgCustomUndertowMetricsHandler")
+public class CustomUndertowMetricsHandler {
+
+    // 用于统计已创建的 session 数量
+    private final LongAdder sessionsCreated = new LongAdder();
+
+    // 用于统计已销毁的 session 数量
+    private final LongAdder sessionsExpired = new LongAdder();
+
+    // 当前活跃的 session 数量
+    private final AtomicInteger activeSessions = new AtomicInteger();
+
+    // 历史最大活跃 session 数
+    private final AtomicInteger maxActiveSessions = new AtomicInteger();
+
+    // Undertow 内存 session 管理器（用于创建与管理 session）
+    private final InMemorySessionManager sessionManager = new InMemorySessionManager("undertow-session-manager");
+
+    // 使用 Cookie 存储 session ID
+    private final SessionConfig sessionConfig = new SessionCookieConfig();
+
+    /**
+     * 构造函数
+     * @param meterRegistry
+     * @author chenrui
+     * @date 2025/4/8 19:07
+     */
+    public CustomUndertowMetricsHandler(MeterRegistry meterRegistry) {
+        // 注册 Micrometer 指标
+        meterRegistry.gauge("undertow.sessions.created", sessionsCreated, LongAdder::longValue);
+        meterRegistry.gauge("undertow.sessions.expired", sessionsExpired, LongAdder::longValue);
+        meterRegistry.gauge("undertow.sessions.active.current", activeSessions, AtomicInteger::get);
+        meterRegistry.gauge("undertow.sessions.active.max", maxActiveSessions, AtomicInteger::get);
+
+        // 添加 session 生命周期监听器，统计 session 创建与销毁
+        sessionManager.registerSessionListener(new SessionListener() {
+            @Override
+            public void sessionCreated(Session session, HttpServerExchange exchange) {
+                sessionsCreated.increment();
+                int now = activeSessions.incrementAndGet();
+                maxActiveSessions.getAndUpdate(max -> Math.max(max, now));
+            }
+
+            @Override
+            public void sessionDestroyed(Session session, HttpServerExchange exchange, SessionDestroyedReason reason) {
+                sessionsExpired.increment();
+                activeSessions.decrementAndGet();
+            }
+        });
+    }
+
+    /**
+     * 包装 Undertow 的 HttpHandler，实现 session 自动创建逻辑
+     * @param next
+     * @return
+     * @author chenrui
+     * @date 2025/4/8 19:07
+     */
+    public HttpHandler wrap(HttpHandler next) {
+        return exchange -> {
+            // 获取当前 session，如果不存在则创建
+            Session session = sessionManager.getSession(exchange, sessionConfig);
+            if (session == null) {
+                sessionManager.createSession(exchange, sessionConfig);
+            }
+
+            // 执行下一个 Handler
+            next.handleRequest(exchange);
+        };
+    }
+}

jeecgboot-vue3/src/views/monitor/server/index.vue

@@ -4,7 +4,8 @@
       <a-tabs v-model:activeKey="activeKey" @change="tabChange">
         <a-tab-pane key="1" tab="服务器信息"></a-tab-pane>
         <a-tab-pane key="2" tab="JVM信息" force-render></a-tab-pane>
-        <a-tab-pane key="3" tab="Tomcat信息"></a-tab-pane>
+        <!-- <a-tab-pane key="3" tab="Tomcat信息"></a-tab-pane> -->
+        <a-tab-pane key="6" tab="Undertow信息"></a-tab-pane>
         <a-tab-pane key="4" tab="磁盘监控">
           <DiskInfo v-if="activeKey == 4" style="height: 100%"></DiskInfo>
         </a-tab-pane>

jeecgboot-vue3/src/views/monitor/server/server.api.ts

@@ -30,6 +30,11 @@ enum Api {
   tomcatSessionsRejected = '/actuator/metrics/tomcat.sessions.rejected',
 
   memoryInfo = '/sys/actuator/memory/info',
+  // undertow 监控
+  undertowSessionsCreated = '/actuator/metrics/undertow.sessions.created',
+  undertowSessionsExpired = '/actuator/metrics/undertow.sessions.expired',
+  undertowSessionsActiveCurrent = '/actuator/metrics/undertow.sessions.active.current',
+  undertowSessionsActiveMax = '/actuator/metrics/undertow.sessions.active.max',
 }
 
 /**
@@ -207,6 +212,34 @@ export const getTomcatSessionsRejected = () => {
   return defHttp.get({ url: Api.tomcatSessionsRejected }, { isTransformResponse: false });
 };
 
+/**
+ *undertow 已创建 session 数
+ */
+export const getUndertowSessionsCreated = () => {
+  return defHttp.get({ url: Api.undertowSessionsCreated }, { isTransformResponse: false });
+};
+
+/**
+ *undertow 已过期 session 数
+ */
+export const getUndertowSessionsExpired = () => {
+  return defHttp.get({ url: Api.undertowSessionsExpired }, { isTransformResponse: false });
+};
+
+/**
+ *undertow 当前活跃 session 数
+ */
+export const getUndertowSessionsActiveCurrent = () => {
+  return defHttp.get({ url: Api.undertowSessionsActiveCurrent }, { isTransformResponse: false });
+};
+
+/**
+ *undertow 活跃 session 数峰值
+ */
+export const getUndertowSessionsActiveMax = () => {
+  return defHttp.get({ url: Api.undertowSessionsActiveMax }, { isTransformResponse: false });
+};
+
 /**
  * 内存信息
  */
@@ -230,6 +263,9 @@ export const getMoreInfo = (infoType) => {
   if (infoType == '5') {
     return {};
   }
+  if (infoType == '6') {
+    return {};
+  }
 };
 
 export const getTextInfo = (infoType) => {
@@ -293,6 +329,16 @@ export const getTextInfo = (infoType) => {
       'memory.runtime.usage': { color: 'purple', text: 'JVM内存使用率', unit: '%', valueType: 'Number' },
     };
   }
+  if (infoType == '6') {
+    // undertow 监控
+    return {
+      'undertow.sessions.created': { color: 'green', text: 'undertow 已创建 session 数', unit: '个' },
+      'undertow.sessions.expired': { color: 'green', text: 'undertow 已过期 session 数', unit: '个' },
+      'undertow.sessions.active.current': { color: 'green', text: 'undertow 当前活跃 session 数', unit: '个' },
+      'undertow.sessions.active.max': { color: 'green', text: 'undertow 活跃 session 数峰值', unit: '个' },
+      'undertow.sessions.rejected': { color: 'green', text: '超过session 最大配置后，拒绝的 session 个数', unit: '个' },
+    };
+  }
 };
 
 /**
@@ -334,4 +380,13 @@ export const getServerInfo = (infoType) => {
   if (infoType == '5') {
     return Promise.all([getMemoryInfo()]);
   }
+  // undertow监控
+  if (infoType == '6') {
+    return Promise.all([
+      getUndertowSessionsActiveCurrent(),
+      getUndertowSessionsActiveMax(),
+      getUndertowSessionsCreated(),
+      getUndertowSessionsExpired(),
+    ]);
+  }
 };