内存磁盘网络参数

内存、磁盘

    /**
     * 获取内存使用情况
     */
    @RequestMapping("/diskCapacityManagement")
    public String diskCapacityManagement(HttpServletRequest req, HttpServletResponse reps) throws IOException {

        try{
            OperatingSystemMXBean mem = (OperatingSystemMXBean) ManagementFactory.getOperatingSystemMXBean();
            // 获取内存总容量
            long totalMemorySize = mem.getTotalPhysicalMemorySize();
            // 获取可用内存容量(剩余物理内存）
            long freeMemorySize = mem.getFreePhysicalMemorySize();

            float usedRAMRate = (float) (((totalMemorySize - freeMemorySize) * 1.0 / totalMemorySize) * 100);

            DecimalFormat df = new DecimalFormat("#0.00");
//        File[] disks = File.listRoots();
            File disks = new File(Constants.DISKCAPACITYPATH);
            //获取总容量
            long totalSpace = disks.getTotalSpace();
            // 获取剩余容量
            long usableSpace = disks.getUsableSpace();
            // 获取已经使用的容量
            long usedSpace = totalSpace - usableSpace;
            // 获取使用率
            float useRate = (float) ((usedSpace * 1.0 / totalSpace) * 100);

            boolean isConnect = isConnect("www.baidu.com");
            System.out.println("网络状态" + isConnect);
            DiskCapacityEntity diskCapacity = new DiskCapacityEntity();
            diskCapacity.setTotalMemorySize(transformation(totalMemorySize));
            diskCapacity.setTotalSpace(transformation(totalSpace));
            diskCapacity.setConnect(isConnect);
            diskCapacity.setUsedRAMRate(df.format(usedRAMRate) + "%");
            diskCapacity.setUseRate(df.format(useRate) + "%");
            req.setAttribute("diskCapacity", diskCapacity);
            log.info("进入磁盘管理页面成功！");
        }catch (Exception e){
            log.error("进入磁盘管理页面失败！",e);
        }


        return "diskCapacityManagement";
    }


        boolean isConnect = isConnect("www.baidu.com");
        System.out.println("网络状态" + isConnect);
        DiskCapacityEntity diskCapacity = new DiskCapacityEntity();
        diskCapacity.setTotalMemorySize(transformation(totalMemorySize));
        diskCapacity.setTotalSpace(transformation(totalSpace));
        diskCapacity.setConnect(isConnect);
        diskCapacity.setUsedRAMRate(df.format(usedRAMRate) + "%");
        diskCapacity.setUseRate(df.format(useRate) + "%");
        req.setAttribute("diskCapacity", diskCapacity);
        return "diskCapacityManagement";

    }
    /**
     * 将字节容量转化为GB
     */
    public static String transformation(long size){
        DecimalFormat df = new DecimalFormat("#0.00");
        return df.format((float) size / 1024 / 1024 / 1024) + "GB"+"   ";
    }

网络情况（是否连接）

 public static boolean isConnect(String urlPath){
        //定义其返回的状态，默认为false，网络不正常
        boolean connect = false;
        Runtime runtime = Runtime.getRuntime();
        Process process;
        try {
            //-c3代表Linux测试三次，Windows不用加-c参数
            String command = ProcessUtil.IS_WINDOWS?"ping " : "ping -c3 ";
            process =  runtime.exec( command + urlPath);
            InputStream is = process.getInputStream();
            InputStreamReader isr = new InputStreamReader(is,"GBK");
            BufferedReader br = new BufferedReader(isr);
            String line = null;
            StringBuffer sb = new StringBuffer();
            while ((line = br.readLine()) != null) {
                sb.append(line);
            }
//            System.out.println("返回值为: {}"+sb);
            is.close();
            isr.close();
            br.close();
            if (null != sb && !sb.toString().equals("")) {
                String ttl = ProcessUtil.IS_WINDOWS ? "TTL" : "ttl";
                if (sb.toString().indexOf(ttl) > 0) {
                    // 网络畅通
                    connect = true;
                } else {
                    // 网络不畅通
                    connect = false;
                }
            }
        } catch (IOException e) {
            e.printStackTrace();
        }
        return connect;
    }

前端

<table class="table table-striped projects">
    <thead>
    <tr>
        <th style="width: 10%">内存总容量</th>
        <th style="width: 10%">磁盘总容量</th>
        <th style="width: 10%">网络状态</th>
        <th>内存利用率</th>
        <th>存储利用率</th>
        <th>编辑</th>
    </tr>
    </thead>
    <tbody>
    <tr th:each="disk:${diskCapacity}">
        <td th:text="${disk.totalMemorySize}"></td>
        <td th:text="${disk.totalSpace}"></td>
        <td th:if="${disk.connect} eq true">
            <button type="button" class="btn btn-success btn-sm btn-round">良好</button>
        </td>
        <td th:if="${disk.connect }eq false">
            <button type="button" class="btn btn-danger btn-sm btn-round">掉线</button>
        </td>
        <td class="project_progress" >
            <div class="progress progress_sm">
                <div class="progress-bar bg-green" role="progressbar" th:data-transitiongoal= "${disk.usedRAMRate}"></div>
            </div>
            <small th:text="${disk.usedRAMRate}"></small>
        </td>
        <td class="project_progress" >
            <div class="progress progress_sm">
                <div class="progress-bar bg-green" role="progressbar" th:data-transitiongoal= "${disk.useRate}"></div>
            </div>
            <small th:text="${disk.useRate}"></small>
        </td>
        <td>
            <a href="#" class="btn btn-info btn-sm"><i class="fa fa-pencil"></i> 提醒 </a>
            <a th:href="@{/documentManagement}" class="btn btn-danger btn-sm"><i class="fa fa-trash-o"></i> 删除 </a>
        </td>
    </tr>


    </tbody>
</table>