Rails 4：Solr抛出JavaMissing错误，但安装了Java
我重启了我的Rails 4 VPS，Solr显然也关机了。 我现在正在尝试启动Solr但是当我运行以下RAILS_ENV=production bundle exec rake sunspot:solr:start我收到以下错误消息：
rake aborted! Sunspot::Solr::Server::JavaMissing: You need a Java Runtime Environment to run the Solr server /home/dani/.rvm/gems/ruby-2.1.2/gems/sunspot_solr-2.1.1/lib/sunspot/solr/server.rb:203:in `ensure_java_installed' /home/dani/.rvm/gems/ruby-2.1.2/gems/sunspot_solr-2.1.1/lib/sunspot/solr/server.rb:27:in `initialize' /home/dani/.rvm/gems/ruby-2.1.2/gems/sunspot_solr-2.1.1/lib/sunspot/solr/tasks.rb:37:in `new' /home/dani/.rvm/gems/ruby-2.1.2/gems/sunspot_solr-2.1.1/lib/sunspot/solr/tasks.rb:37:in `server' /home/dani/.rvm/gems/ruby-2.1.2/gems/sunspot_solr-2.1.1/lib/sunspot/solr/tasks.rb:5:in `block (3 levels) in ' /home/dani/.rvm/gems/ruby-2.1.2/bin/ruby_executable_hooks:15:in `eval' /home/dani/.rvm/gems/ruby-2.1.2/bin/ruby_executable_hooks:15:in `' Tasks: TOP => sunspot:solr:start (See full trace by running task with --trace)
奇怪的是安装了Java：
$ echo $JAVA_HOME /usr/lib/jvm/java-6-openjdk-amd64/jre/bin/java $ java -version java version "1.6.0_31" OpenJDK Runtime Environment (IcedTea6 1.13.3) (6b31-1.13.3-1ubuntu1~0.12.04.2) OpenJDK 64-Bit Server VM (build 23.25-b01, mixed mode)
我不确定可能导致这种行为的原因。 有什么建议？
尝试向PATH添加java所在的文件夹，如下所示：
export PATH=$PATH:/path/to/java/bin
这样java就可以从任何地方调用而无需指定文件夹。
在调用rake之前启动它解决了我的问题。