通过vsphere golang webservice sdk 获取vmware主机、虚拟机的监控数据 使用java

可以使用 vSphere SDK for Java 来获取 VMware 主机和虚拟机的监控数据。下面是一个示例代码，可以获取 CPU 和内存使用率的指标数据：

import com.vmware.vim25.*;
import com.vmware.vim25.mo.*;

import java.net.URL;
import java.rmi.RemoteException;
import java.util.ArrayList;
import java.util.List;

public class VmwareMonitor {
    public static void main(String[] args) {
        try {
            // 连接 vSphere
            ServiceInstance si = new ServiceInstance(new URL("https://<vcenter>/sdk"), "<username>", "<password>", true);

            // 获取主机和虚拟机的监控数据
            PerformanceManager perfMgr = si.getPerformanceManager();
            List<PerfMetricId> perfMetricIds = new ArrayList<>();
            perfMetricIds.add(new PerfMetricId(new PerfCounterInfo().setKey(6), null)); // CPU usage
            perfMetricIds.add(new PerfMetricId(new PerfCounterInfo().setKey(24), null)); // Memory usage
            PerfQuerySpec perfQuerySpec = new PerfQuerySpec();
            perfQuerySpec.setEntity(new ManagedObjectReference());
            perfQuerySpec.getEntity().setType("HostSystem");
            perfQuerySpec.getEntity().setValue("<host-moid>");
            perfQuerySpec.setMetricId(perfMetricIds.toArray(new PerfMetricId[0]));
            perfQuerySpec.setIntervalId(20); // 20 seconds
            perfQuerySpec.setFormat("normal");
            List<PerfQuerySpec> perfQuerySpecs = new ArrayList<>();
            perfQuerySpecs.add(perfQuerySpec);
            PerfEntityMetricBase[] perfEntityMetricBases = perfMgr.queryPerf(perfQuerySpecs.toArray(new PerfQuerySpec[0]));
            for (PerfEntityMetricBase perfEntityMetricBase : perfEntityMetricBases) {
                PerfEntityMetric perfEntityMetric = (PerfEntityMetric) perfEntityMetricBase;
                ManagedObjectReference entity = perfEntityMetric.getEntity();
                for (PerfMetricSeries perfMetricSeries : perfEntityMetric.getValue()) {
                    PerfMetricId perfMetricId = perfMetricSeries.getId();
                    String instance = perfMetricSeries.getInstance().length > 0 ? perfMetricSeries.getInstance()[0].getValue() : "";
                    double value = perfMetricSeries.getValue()[0];
                    if (perfMetricId.getCounterId() == 6) {
                        System.out.printf("Entity: %s, Instance: %s, CPU usage: %.2f%%\n", entity.getValue(), instance, value);
                    } else if (perfMetricId.getCounterId() == 24) {
                        System.out.printf("Entity: %s, Instance: %s, Memory usage: %.2f%%\n", entity.getValue(), instance, value);
                    }
                }
            }

            // 关闭连接
            si.getServerConnection().logout();
        } catch (Exception e) {
            e.printStackTrace();
        }
    }
}

在上面的代码中，需要替换 `<vcenter>`、`<username>`、`<password>` 和 `<host-moid>` 分别为 vCenter Server 的地址、用户名、密码和主机的 Managed Object ID。你还可以修改 `perfMetricIds` 来获取其他指标数据。