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Unable to load the Wrapper's native library because none of the following files及解决方法

發(fā)布時(shí)間：2025/4/14 编程问答 19 豆豆

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在有幾個(gè)應(yīng)用中，在啟動(dòng)的時(shí)候發(fā)現(xiàn)下列警告：

The version of the script (3.5.29) doesn't match the version of this Wrapper (3.5.27). This might cause some problems
--> Wrapper Started as Daemon
Java Service Wrapper Community Edition 64-bit 3.5.27
Copyright (C) 1999-2015 Tanuki Software, Ltd. All Rights Reserved.
http://wrapper.tanukisoftware.com

Launching a JVM...
WrapperManager: Initializing...
WrapperManager:
WrapperManager: WARNING - Unable to load the Wrapper's native library because none of the
WrapperManager: following files:
WrapperManager: libwrapper-linux-x86-64.so
WrapperManager: libwrapper.so
WrapperManager: could be located on the following java.library.path:
WrapperManager: /data/src/osm-route/bin/../lib
WrapperManager: Please see the documentation for the wrapper.java.library.path
WrapperManager: configuration property.
WrapperManager: System signals will not be handled correctly.
WrapperManager:
17-02-04 11:26:13.164 INFO WrapperSimpleAppMain org.springframework.context.support.AbstractApplicationContext.prepareRefresh(AbstractApplicationContext.java:578): Refreshing org.springframework.context.suppor
t.ClassPathXmlApplicationContext@6ca9bb2b: startup date [Sat Feb 04 11:26:13 CST 2017]; root of context hierarchy

?但是，程序是可以正常起來(lái)的（如果不能起來(lái)，則多半不是因?yàn)槿鄙偕厦鎯蓚€(gè)so之一的原因）。

于是，筆者再看了下幾個(gè)其他應(yīng)用的lib，如下：

[root@iZ23nn1p4mjZ lib]# ll
total 344
-rw-r--r-- 1 root root 44664 Jan 16 13:35 libwrapper.so
-rw-r--r-- 1 root root 67882 Jan 16 13:35 wrapperdemo.jar
-rw-r--r-- 1 root root 124041 Jan 16 13:35 wrapper.jar
-rw-r--r-- 1 root root 106706 Jan 16 13:35 wrappertest.jar
[root@iZ23nn1p4mjZ lib]# cd ../../osm-all/lib
[root@iZ23nn1p4mjZ lib]# ll
total 344
-rw-r--r-- 1 root root 44664 Jan 16 13:35 libwrapper.so
-rw-r--r-- 1 root root 67882 Jan 16 13:35 wrapperdemo.jar
-rw-r--r-- 1 root root 124041 Jan 16 13:35 wrapper.jar
-rw-r--r-- 1 root root 106706 Jan 16 13:35 wrappertest.jar
[root@iZ23nn1p4mjZ lib]# cd ../../osm-route/lib
[root@iZ23nn1p4mjZ lib]# ll
total 632
-rw-r--r-- 1 root root 67882 Jan 16 13:35 wrapperdemo.jar
-rw-r--r-- 1 root root 337176 Jan 16 13:35 wrapper.dll
-rw-r--r-- 1 root root 124041 Jan 16 13:35 wrapper.jar
-rw-r--r-- 1 root root 106706 Jan 16 13:35 wrappertest.jar
[root@iZ23nn1p4mjZ lib]# cd ../../osm-trade/lib
[root@iZ23nn1p4mjZ lib]# ll
total 344
-rw-r--r-- 1 root root 44664 Jan 16 13:35 libwrapper.so
-rw-r--r-- 1 root root 67882 Jan 16 13:35 wrapperdemo.jar
-rw-r--r-- 1 root root 124041 Jan 16 13:35 wrapper.jar
-rw-r--r-- 1 root root 106706 Jan 16 13:35 wrappertest.jar

其中一個(gè)確實(shí)沒(méi)有l(wèi)ibwrapper.so，再看下這個(gè)so的作用，如下：

The Java component of Java Service Wrapper requires that a native library be loaded to be able to handle system signals and perform other functions which are not possible using the Java API. This property allows the name of the library to be modified to suit the needs of a particular application. In general, most users should not need to use this property.

The Java language specifies some rules about how Java Native Libraries (JNI) can be named. The Wrapper's library is no exception and must follow these naming conventions.

To explain this, we will use the default base name "wrapper" as an example.

Example:

wrapper.native_library=wrapper

On Windows systems, the library file name will be "wrapper.dll".
On Mac OSX systems, the library file name will be "libwrapper.jnilib".
And on all other Linux/UNIX platforms, the library file name will be "libwrapper.so".

If this property is given any other value, that base-name will be used to construct the actual name of the native library file using the above rules.

Library Path:

Regardless of the name specified, the native library must be located within a directory specified using thewrapper.java.library.path.<n>?property.

Platform specific native libraries:

The Wrapper also provides a facility to make it easy to create binary distributions that run on any platform, even if the application makes use of native libraries. In detail, see the?Platform specific native libraries.

所以，其實(shí)libwrapper其實(shí)是處理平臺(tái)相關(guān)的一些信號(hào)的，比如kill -N的個(gè)中含義。并不影響其本身，當(dāng)然最好是應(yīng)該有的。萬(wàn)一不見(jiàn)了的話，可以從官網(wǎng)http://wrapper.tanukisoftware.com/doc/english/download.jsp下載對(duì)應(yīng)版本放進(jìn)去就可以了。

轉(zhuǎn)載于:https://www.cnblogs.com/zhjh256/p/6364514.html

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