java调用指定

烦请哪位大神指导下怎么实现java调用kettle来执行指定的KTR或者KJB文件？报错

自己写了个程序，但是调用指定ktr文件时会报错：DatabaseJoin不能识别，错误如下：Unable to load class for step/plugin with id[DatabaseJoin].Check if the plugin is available in the plugins subdirectory of the Kettle ...

Java性能调优，使用java读取excel文件指定内容性能最快的做法是什么？

scala调用java的方法,返回了一个对象链表List,在scala中遍历该链表获取指定Student的...

假设Student类如下:class Student { private int no;private String name;public int getNo(){ return no;} public String getName(){ ...如果你担心这种风格污染了命名空间，用大括号{}来将表达式分组:val orderedVotes={ val votesByLang=.}

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