安装rJava包失败处理方法

在linux 进入 R 命令行之后安装Rweibo没有问题，安装Rwordseg分词包的时候提示rJava没有安装，在安装rJava的时候提示出错

checking whether JNI programs can be compiled... configure: error: Cannot compile a simple JNI program. See config.log for details.


Make sure you have Java Development Kit installed and correctly registered in R.
If in doubt, re-run "R CMD javareconf" as root.


ERROR: configuration failed for package 'rJava'
* removing '/usr/local/lib64/R/library/rJava'


The downloaded source packages are in
        '/tmp/RtmpBXrYE2/downloaded_packages'
Updating HTML index of packages in '.Library'
Making packages.html  ... done
Warning message:
In install.packages("rJava") :
  installation of package 'rJava' had non-zero exit status

昨晚没弄好，今天继续；

原来的JDK是从其他环境直接打包过来，今天直接从其他地方下载了一个重新安装之后成功，步骤如下：

1. wget 一个JDK的包

wget http://ftp.cc.uoc.gr/Java/Linux-x86_64/1.6u21/jdk-6u21-linux-x64.bin

chmod 777 jdk-6u21-linux-x64.bin 

./jdk-6u21-linux-x64.bin

安装完成后，在.bash_profile中把JAVA_HOME改成这个安装目录

R CMD javareconf

R

进入R命令行之后，重新执行 install.packages("rJava")

成功