Java与Matlab混合编程报错：Failed to find required library mclmcrrt9_2.dll on java.library.path解决方法

问题描述：

Exception in thread "main" java.lang.UnsatisfiedLinkError: Failed to find the required library mclmcrrt9_2.dll on java.library.path.

This library is typically installed along with MATLAB or the MATLAB Runtime. Its absence may indicate an issue with that installation or

the current path configuration, or a mismatch with the architecture of the Java interpreter on the path.

MATLAB Runtime version this component is attempting to use: 9.2.

Java interpreter architecture: win64.

at com.mathworks.toolbox.javabuilder.internal.MCRConfiguration$ProxyLibraryDir.get(MCRConfiguration.java:324)

at com.mathworks.toolbox.javabuilder.internal.MCRConfiguration$ProxyLibraryDir.(MCRConfiguration.java:334)

at com.mathworks.toolbox.javabuilder.internal.MCRConfiguration.getProxyLibraryDir(MCRConfiguration.java:339)

at com.mathworks.toolbox.javabuilder.internal.MCRConfiguration$MCRRoot.get(MCRConfiguration.java:64)

at com.mathworks.toolbox.javabuilder.internal.MCRConfiguration$MCRRoot.(MCRConfiguration.java:76)

at com.mathworks.toolbox.javabuilder.internal.MCRConfiguration.getMCRRoot(MCRConfiguration.java:81)

at com.mathworks.toolbox.javabuilder.internal.MCRConfiguration$ModuleDir.(MCRConfiguration.java:53)

at com.mathworks.toolbox.javabuilder.internal.MCRConfiguration.getModuleDir(MCRConfiguration.java:58)

at com.mathworks.toolbox.javabuilder.internal.MWMCR.(MWMCR.java:1699)

at nsgaii.NsgaiiMCRFactory.newInstance(NsgaiiMCRFactory.java:55)

at nsgaii.NsgaiiMCRFactory.newInstance(NsgaiiMCRFactory.java:66)

at nsgaii.NsgaiiOperator.(NsgaiiOperator.java:167)

at optimization.algorithm.nsgaii.NSGAII.main(NSGAII.java:33)

问题分析：

未安装matlab runtime运行环境，或运行环境版本不匹配

问题解决：

1. 安装MCR环境(E:\MATLAB\R2017a\toolbox\compiler\deploy\win64\MCRInstaller.exe)

配置  path

C:\Program Files\MATLAB\MATLAB Runtime\v92\runtime\win64

配置

MATLAB_JAVA

https://www.gofarlic.com\install\java\jdk1.8.0_181\jre

2. 配置java环境

JAVA_HOME

https://www.gofarlic.com\install\java\jdk1.8.0_181

CLASSPATH

%JAVA_HOME%\lib;%JAVA_HOME%\lib\dt.jar;%JAVA_HOME%\lib\tools.jar

PATH

;%JAVA_HOME%\jre\bin;%JAVA_HOME%\bin

参考链接：

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