我正在尝试在Jruby中导入Java类
$ ls
bin src
$ ls bin/com/practice
Test.class
$ ls src/com/practice
Test.java
$ cat src/com/practice/Test.java
package com.practice;
public class Test {
public static String foo(){
return "Java!!";
}
public static void main(String args[]){
System.out.println(Test.foo());
}
}
$ jirb -Ibin
jruby-1.7.10 :001 > java_import 'com.pratice.Test'
NameError: cannot load Java class com.pratice.Test
from org/jruby/javasupport/JavaClass.java:1250:in `for_name'
from org/jruby/javasupport/JavaUtilities.java:34:in `get_proxy_class'
from file:/Users/gaurish/.rvm/rubies/jruby-1.7.10/lib/jruby.jar!/jruby/java/core_ext/object.rb:26:in `java_import'
from org/jruby/RubyArray.java:2409:in `map'
from file:/Users/gaurish/.rvm/rubies/jruby-1.7.10/lib/jruby.jar!/jruby/java/core_ext/object.rb:22:in `java_import'
from (irb):1:in `evaluate'
from org/jruby/RubyKernel.java:1119:in `eval'
from org/jruby/RubyKernel.java:1519:in `loop'
from org/jruby/RubyKernel.java:1282:in `catch'
from org/jruby/RubyKernel.java:1282:in `catch'
from /Users/gaurish/.rvm/rubies/jruby-1.7.10/bin/jirb:13:in `(root)'
我在这里做错了什么？
您有许多问题：
java_import 'com.pratice.Test'package com.practice; 到Java代码。 $CLASSPATH << 'bin'总之，我能够在IRB中运行此代码：
$CLASSPATH << 'bin'
com.practice.Test.foo
# => "Java!!"
编辑：我未能复制您的package行，那是我的错，不是您的。:-)
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