java EhCache 溢出到特定路径的磁盘
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EhCache overflow to disk at specific path
提问by Rahul Agrawal
I am using ehcache with hibernate in my application. here is configuration of ehcache.xml
我在我的应用程序中使用 ehcache 和 hibernate。这是 ehcache.xml 的配置
<ehcache>
<diskStore path="java.io.tmpdir"/>
<defaultCache
maxElementsInMemory="10"
eternal="false"
timeToIdleSeconds="120"
timeToLiveSeconds="120"
overflowToDisk="true"
diskSpoolBufferSizeMB="300"
maxElementsOnDisk="10000000"
diskPersistent="false"
diskExpiryThreadIntervalSeconds="120"
memoryStoreEvictionPolicy="LRU"
/>
</ehcache>
my diskStore path is java.io.tmpdir, which i want to change to my application path as ${WebApp}/DiskStore
我的 diskStore 路径是 java.io.tmpdir，我想将其更改为我的应用程序路径${WebApp}/DiskStore
回答by NPKR
Storage Location are specified by hard coading paths.
存储位置由硬编码路径指定。
Legal values for the path attibute are legal file system paths.
路径属性的合法值是合法的文件系统路径。
E.g., for Unix: /home/application/cache
例如，对于 Unix：/home/application/cache
The following system properties are also legal, in which case they are translated:
以下系统属性也是合法的，在这种情况下它们被翻译：
user.home - User's home directory
user.dir - User's current working directory
java.io.tmpdir - Default temp file path
ehcache.disk.store.dir - A system property
Subdirectories can be specified below the system property, for example:
可以在系统属性下指定子目录，例如：
java.io.tmpdir/one
java.io.tmpdir/one
becomes, on a Unix system:
在 Unix 系统上变成：
/tmp/one
/tmp/一
回答by zazi
It is also possible to utilise a property that will be replaced on compile time. Therefore, you need to configure your pom.xml properly, e.g.
也可以利用将在编译时替换的属性。因此，您需要正确配置您的 pom.xml，例如
<build>
<filters>
<filter>${user.home}/my.properties</filter>
</filters>
<resources>
<resource>
<directory>src/main/resources</directory>
<filtering>true</filtering>
</resource>
</resources>
</build>
(at least this was a working setting for our project)
（至少这是我们项目的工作环境）
回答by Haifeng Zhang
I have tried ehcache recently and was wondering what is java.io.tmpdirand where it is located on my machine. The accepted answer in this page didnt solve my issue. I checked /tmpand the ehcache file is not found.
我最近尝试过 ehcache，想知道java.io.tmpdir它是什么以及它在我的机器上的位置。此页面中接受的答案并没有解决我的问题。我检查过/tmp，没有找到 ehcache 文件。
Here's what I find online and hope it helps to other people:
以下是我在网上找到的内容，希望对其他人有所帮助：
1.run envcommand on your terminal. It prints the OS environment. In my case, it gave me:
1.env在终端上运行命令。它打印操作系统环境。就我而言，它给了我：
TMPDIR=/var/folders/1j/pb3h7_hl7890px72_f8mntd00000gn/T/
TMPDIR=/var/folders/1j/pb3h7_hl7890px72_f8mntd00000gn/T/
2.alternatively, you can query from python console:
2.或者，您可以从python控制台查询：
Python 3.5.1 (v3.5.1:37a07cee5969, Dec 5 2015, 21:12:44)
[GCC 4.2.1 (Apple Inc. build 5666) (dot 3)] on darwin
Type "help", "copyright", "credits" or "license" for more information.
>>> import tempfile
>>> tempfile.gettempdir()
'/var/folders/1j/pb3h7_hl7890px72_f8mntd00000gn/T'
回答by Shahid Hussain Abbasi
Here you go.
干得好。
user.home -> It is user home directory e.i C:\Users\abc (windowdrive:\Users\username) user.dir -> C:\Users\abc\eclipse-workspace\project java.io.tmpdir -> C:\Users\abc\AppData\Local\Temp\ ehcache.disk.store.dir - A system property (https://www.ehcache.org/documentation/3.7/)
user.home -> 它是用户主目录 ei C:\Users\abc (windowdrive:\Users\username) user.dir -> C:\Users\abc\eclipse-workspace\project java.io.tmpdir -> C :\Users\abc\AppData\Local\Temp\ ehcache.disk.store.dir - 系统属性 ( https://www.ehcache.org/documentation/3.7/)
For more help feel free to communicate over email [email protected]
如需更多帮助，请随时通过电子邮件 [email protected] 进行交流
Thanks
谢谢
