Java調用R環境配置問題：Cannot find JRI native library!

阿新 • • 發佈：2018-11-03

properly setup long scrip bsp tar fin lang expec

Cannot find JRI native library!

Please make sure that the JRI native library is in a directory listed in java.library.path.

java.lang.UnsatisfiedLinkError: C:\Users\----\R\win-library\3.5\rJava\jri\x64\jri.dll: Can‘t find dependent libraries

依照官網解釋

I get the following error, what‘s wrong?
java.lang.UnsatisfiedLinkError: no jri in java.library.path

Usually it means that you didn‘t setup the necessary environment variables properly or the JRI library is not where it is expected to be. The recommended way to start JRI programs is to use the run script which is generated along with the library. It sets everything up and is tested to work. If you want to write your own script or launcher, you must observe at least the following points:

R_HOME

must be set correctly
(Windows): The directory containing R.dll must be in your PATH
(Mac): Well, it‘s a Mac, so it just works ;).
(unix): R must be compiled using --enable-R-shlib and the directory containing libR.so must be in LD_LIBRARY_PATH. Also libjvm.so and other dependent Java libraries must be on LD_LIBRARY_PATH

.
JRI library must be in the current directory or any directory listed in java.library.path. Alternatively you can specify its path with
-Djava.library.path= when starting the JVM. When you use the latter, make sure you check java.library.path property first such that you won‘t break your Java.
Depending on your system, the R verison and other features you want to use, you may have to set additional settings such as R_SHARE_DIR, R_INCLUDE_DIR and R_DOC_DIR.

1、在環境變量中設置R_HOME；

2、在系統path中加入路徑，指向包含R.dll的目錄，如果你的系統為64位系統，可能是在x64目錄中
3、工程中配置java.library.path為jri.dll所在的路徑

設置完成以後記得重新啟動eclipse

Java調用R環境配置問題：Cannot find JRI native library!

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