fix

chsm-web-manage/pom.xml

@@ -70,7 +70,11 @@
             <groupId>cn.hutool</groupId>
             <artifactId>hutool-core</artifactId>
         </dependency>
-
+        <dependency>
+            <groupId>org.snmp4j</groupId>
+            <artifactId>snmp4j</artifactId>
+            <version>2.8.6</version>
+        </dependency>
         <dependency>
             <groupId>commons-codec</groupId>
             <artifactId>commons-codec</artifactId>

chsm-web-manage/src/main/java/com/sunyard/chsm/dto/DeviceDTO.java

@@ -141,9 +141,9 @@ public abstract class DeviceDTO {
     @Data
     public static class Detail extends DeviceView {
 
-        private Double cpuRate;
-        private Double memoryRate;
-        private Double diskRate;
+        private String cpuRate;
+        private String memoryRate;
+        private String diskRate;
 
     }
 

chsm-web-manage/src/main/java/com/sunyard/chsm/service/impl/DeviceServiceImpl.java

@@ -14,6 +14,14 @@ import com.sunyard.chsm.model.entity.Device;
 import com.sunyard.chsm.service.DeviceService;
 import com.sunyard.chsm.service.TmkService;
 import lombok.extern.slf4j.Slf4j;
+import org.snmp4j.CommunityTarget;
+import org.snmp4j.PDU;
+import org.snmp4j.Snmp;
+import org.snmp4j.TransportMapping;
+import org.snmp4j.event.ResponseEvent;
+import org.snmp4j.mp.SnmpConstants;
+import org.snmp4j.smi.*;
+import org.snmp4j.transport.DefaultUdpTransportMapping;
 import org.springframework.beans.BeanUtils;
 import org.springframework.stereotype.Service;
 import org.springframework.transaction.annotation.Transactional;
@@ -22,6 +30,7 @@ import org.springframework.util.CollectionUtils;
 import org.springframework.util.StringUtils;
 
 import javax.annotation.Resource;
+import java.text.NumberFormat;
 import java.time.LocalDateTime;
 import java.util.List;
 import java.util.Objects;
@@ -110,14 +119,80 @@ public class DeviceServiceImpl implements DeviceService {
                 .map(ManufacturerModelEnum::getName)
                 .ifPresent(detail::setManufacturerModelText);
 
-        // todo
-        detail.setCpuRate(0.5D);
-        detail.setMemoryRate(0.5D);
-        detail.setDiskRate(0.5D);
+        try {
+            int port = 161;
+            String community = "public";
+            // 获取 CPU 使用率
+            String cpuOid = ".1.3.6.1.4.1.2021.11.10.0";
+            String cpuUsage = getSnmpData(exist.getServiceIp(), port, community, cpuOid);
+            detail.setCpuRate(cpuUsage + "%");
+
+            // 获取磁盘使用率
+            String diskUsageOid = ".1.3.6.1.4.1.2021.9.1.9.1";
+            String diskUsage = getSnmpData(exist.getServiceIp(), port, community, diskUsageOid);
+            detail.setDiskRate(diskUsage + "%");
+
+            // 获取内存使用率
+            double memoryUsage = getMemoryUsage(exist.getServiceIp(), port, community);
+            detail.setMemoryRate(NumberFormat.getIntegerInstance().format(memoryUsage) + "%");
+        } catch (Exception ex) {
+            log.warn("设备snmp协议连接异常:{}", exist.getServiceIp(), ex);
+        }
 
         return detail;
     }
 
+    public static double getMemoryUsage(String ip, int port, String community) throws Exception {
+        // OIDs for total and available memory
+        String totalMemoryOid = ".1.3.6.1.4.1.2021.4.5.0";
+        String freeMemoryOid = ".1.3.6.1.4.1.2021.4.6.0";
+
+        // 获取总内存和可用内存
+        String totalMemoryStr = getSnmpData(ip, port, community, totalMemoryOid);
+        String freeMemoryStr = getSnmpData(ip, port, community, freeMemoryOid);
+
+        // 转换为数值
+        double totalMemory = Double.parseDouble(totalMemoryStr);
+        double freeMemory = Double.parseDouble(freeMemoryStr);
+
+        // 计算使用率
+        return ((totalMemory - freeMemory) / totalMemory) * 100;
+    }
+
+    public static String getSnmpData(String ip, int port, String community, String oid) throws Exception {
+        String address = "udp:" + ip + "/" + port;
+
+        // 创建 SNMP 传输和会话
+        TransportMapping<UdpAddress> transport = new DefaultUdpTransportMapping();
+        Snmp snmp = new Snmp(transport);
+        transport.listen();
+
+        // 构造目标
+        Address targetAddress = GenericAddress.parse(address);
+        CommunityTarget target = new CommunityTarget();
+        target.setCommunity(new OctetString(community));
+        target.setAddress(targetAddress);
+        target.setRetries(2);
+        target.setTimeout(1500);
+        target.setVersion(SnmpConstants.version2c);
+
+        // 创建 PDU
+        PDU pdu = new PDU();
+        pdu.add(new VariableBinding(new OID(oid)));
+        pdu.setType(PDU.GET);
+
+        // 发送请求并接收响应
+        ResponseEvent event = snmp.send(pdu, target, null);
+        snmp.close();
+
+        // 解析响应
+        if (event != null && event.getResponse() != null) {
+            return event.getResponse().get(0).getVariable().toString();
+        } else {
+            throw new RuntimeException("SNMP Request Timeout or No Response");
+        }
+    }
+
 
     @Override
     public Long save(DeviceDTO.DeviceSave save) {