如何使用Drools-Spring在Drools中设置全局变量并在DRL文件中使用全局变量

Question

基本上，我想将类引用存储为spring服务类的全局变量，并在DRL文件中使用相同的引用来访问全局引用的方法和属性。

Answer 1

Inside your service class use below code:

StatelessKnowledgeSession knowledgeSession;
CustomClass reference;
knowledgeSession.setGlobal("global1", reference);
knowledgeSession.execute(fact);

Inside DRL file

import CustomClass;

global CustomClass global1

Use reference inside any rule.

Answer 2

you have to set the object ref into the kieSession as below

kieSession.setGlobal("serviceName", serviceRef);

and in your drools file import the global reference

global com.example.Service serviceName