feat[monitor]: 新增获取jvm内存与测试用例

monitor/src/main/java/com/zfoo/monitor/model/JvmMemoryVo.java

@@ -0,0 +1,53 @@
+package com.zfoo.monitor.model;
+
+import lombok.Builder;
+
+import java.lang.management.MemoryUsage;
+
+/**
+ * @author yh
+ * @date 2022/10/10 下午6:44
+ */
+
+public class JvmMemoryVo {
+    private String name;
+    private double total;
+    private double max;
+    private double used;
+
+    @Override
+    public String toString() {
+        return "JvmMemoryVo{" +
+                "name='" + name + '\'' +
+                ", total=" + total +
+                ", max=" + max +
+                ", used=" + used +
+                '}';
+    }
+
+    public JvmMemoryVo(String name, MemoryUsage usage) {
+        this.name=name;
+        this.total=bitTomb(usage.getCommitted());
+        this.max=bitTomb(usage.getMax());
+        this.used=bitTomb(usage.getUsed());
+
+    }
+    private static double bitTomb(long val){
+        return (double) (val/1024/1024);
+    }
+
+    public String getName() {
+        return name;
+    }
+
+
+    public double getMax() {
+        return max;
+    }
+
+    public double getUsed() {
+        return used;
+    }
+
+
+}

monitor/src/main/java/com/zfoo/monitor/util/JvmUtils.java

@@ -0,0 +1,43 @@
+package com.zfoo.monitor.util;
+
+import com.sun.jdi.ThreadReference;
+import com.sun.tools.attach.AttachNotSupportedException;
+import com.sun.tools.attach.VirtualMachine;
+import com.sun.tools.attach.spi.AttachProvider;
+import com.zfoo.monitor.model.JvmMemoryVo;
+
+import java.io.IOException;
+import java.lang.management.*;
+import java.util.ArrayList;
+import java.util.List;
+import java.util.Properties;
+
+/**
+ * @author yh
+ * @date 2022/10/10 下午6:42
+ */
+public class JvmUtils {
+
+
+    public static List<JvmMemoryVo> getJvmInfo(){
+        List<JvmMemoryVo> list=new ArrayList<>();
+
+        MemoryMXBean memoryMXBean = ManagementFactory.getMemoryMXBean();
+
+        //堆内存
+        MemoryUsage heapMemoryUsage = ManagementFactory.getMemoryMXBean().getHeapMemoryUsage();
+        list.add(new JvmMemoryVo("heap",heapMemoryUsage));
+
+        List<MemoryPoolMXBean> memoryPoolMXBeans = ManagementFactory.getMemoryPoolMXBeans();
+        for (MemoryPoolMXBean mxBean : memoryPoolMXBeans) {
+            //获取堆内存明细
+            if (MemoryType.HEAP.equals(mxBean.getType())){
+                MemoryUsage usage = mxBean.getUsage();
+                list.add(new JvmMemoryVo(mxBean.getName(), usage));
+            }
+        }
+        return list;
+    }
+
+
+}

monitor/src/test/java/com/zfoo/monitor/ApplicationTest.java

@@ -13,6 +13,7 @@
 
 package com.zfoo.monitor;
 
+import com.zfoo.monitor.util.JvmUtils;
 import com.zfoo.monitor.util.OSUtils;
 import com.zfoo.protocol.util.JsonUtils;
 import com.zfoo.util.ThreadUtils;
@@ -118,4 +119,13 @@ public class ApplicationTest {
         System.out.println(monitor);
     }
 
+
+
+    @Test
+    public void JvmTest(){
+        JvmUtils.getJvmInfo().forEach(a->{
+            System.out.println(a.toString());
+        });
+    }
+
 }