From 9591cf3e53c307d42bc82b866f7b096f19120456 Mon Sep 17 00:00:00 2001
From: ZhengJie <201507802@qq.com>
Date: Mon, 16 Nov 2020 19:21:28 +0800
Subject: [PATCH] =?UTF-8?q?[=E4=BB=A3=E7=A0=81=E4=BC=98=E5=8C=96](v2.6)?=
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---
 eladmin-system/pom.xml                        |  4 ++--
 .../service/impl/MonitorServiceImpl.java      | 24 ++++++++++++-------
 pom.xml                                       |  1 +
 3 files changed, 19 insertions(+), 10 deletions(-)

diff --git a/eladmin-system/pom.xml b/eladmin-system/pom.xml
index bca08a7a..366ac367 100644
--- a/eladmin-system/pom.xml
+++ b/eladmin-system/pom.xml
@@ -15,7 +15,7 @@
     <properties>
         <jjwt.version>0.11.1</jjwt.version>
         <!-- oshi监控需要指定jna版本, 问题详见 https://github.com/oshi/oshi/issues/1040 -->
-        <jna.version>5.5.0</jna.version>
+        <jna.version>5.6.0</jna.version>
     </properties>
 
     <dependencies>
@@ -84,7 +84,7 @@
         <dependency>
             <groupId>com.github.oshi</groupId>
             <artifactId>oshi-core</artifactId>
-            <version>5.0.1</version>
+            <version>5.3.6</version>
         </dependency>
     </dependencies>
 
diff --git a/eladmin-system/src/main/java/me/zhengjie/modules/system/service/impl/MonitorServiceImpl.java b/eladmin-system/src/main/java/me/zhengjie/modules/system/service/impl/MonitorServiceImpl.java
index 87f9bc20..99aaef88 100644
--- a/eladmin-system/src/main/java/me/zhengjie/modules/system/service/impl/MonitorServiceImpl.java
+++ b/eladmin-system/src/main/java/me/zhengjie/modules/system/service/impl/MonitorServiceImpl.java
@@ -50,7 +50,6 @@ public class MonitorServiceImpl implements MonitorService {
             HardwareAbstractionLayer hal = si.getHardware();
             // 系统信息
             resultMap.put("sys", getSystemInfo(os));
-
             // cpu 信息
             resultMap.put("cpu", getCpuInfo(hal.getProcessor()));
             // 内存信息
@@ -75,9 +74,11 @@ public class MonitorServiceImpl implements MonitorService {
         FileSystem fileSystem = os.getFileSystem();
         List<OSFileStore> fsArray = fileSystem.getFileStores();
         for (OSFileStore fs : fsArray){
-            diskInfo.put("total", fs.getTotalSpace() > 0 ? FileUtil.getSize(fs.getTotalSpace()) : "?");
-            long used = fs.getTotalSpace() - fs.getUsableSpace();
-            diskInfo.put("available", FileUtil.getSize(fs.getUsableSpace()));
+            long available = fs.getUsableSpace();
+            long total = fs.getTotalSpace();
+            long used = total - available;
+            diskInfo.put("total", total > 0 ? FileUtil.getSize(total) : "?");
+            diskInfo.put("available", FileUtil.getSize(available));
             diskInfo.put("used", FileUtil.getSize(used));
             diskInfo.put("usageRate", df.format(used/(double)fs.getTotalSpace() * 100));
         }
@@ -91,10 +92,17 @@ public class MonitorServiceImpl implements MonitorService {
      */
     private Map<String,Object> getSwapInfo(GlobalMemory memory) {
         Map<String,Object> swapInfo = new LinkedHashMap<>();
-        swapInfo.put("total", FormatUtil.formatBytes(memory.getVirtualMemory().getSwapTotal()));
-        swapInfo.put("used", FormatUtil.formatBytes(memory.getVirtualMemory().getSwapUsed()));
-        swapInfo.put("available", FormatUtil.formatBytes(memory.getVirtualMemory().getSwapTotal() - memory.getVirtualMemory().getSwapUsed()));
-        swapInfo.put("usageRate", df.format(memory.getVirtualMemory().getSwapUsed()/(double)memory.getVirtualMemory().getSwapTotal() * 100));
+        VirtualMemory virtualMemory = memory.getVirtualMemory();
+        long total = virtualMemory.getSwapTotal();
+        long used = virtualMemory.getSwapUsed();
+        swapInfo.put("total", FormatUtil.formatBytes(total));
+        swapInfo.put("used", FormatUtil.formatBytes(used));
+        swapInfo.put("available", FormatUtil.formatBytes(total - used));
+        if(used == 0){
+            swapInfo.put("usageRate", 0);
+        } else {
+            swapInfo.put("usageRate", df.format(used/(double)total * 100));
+        }
         return swapInfo;
     }
 
diff --git a/pom.xml b/pom.xml
index 049c02b3..b8fe4a46 100644
--- a/pom.xml
+++ b/pom.xml
@@ -144,6 +144,7 @@
             <artifactId>ip2region</artifactId>
             <version>1.7.2</version>
         </dependency>
+
         <!--lombok插件-->
         <dependency>
             <groupId>org.projectlombok</groupId>