用activiti做流程引擎时，我们需要定制一些全局配置，如主键的生成规则，全局事件等。

@Bean(name = "processEngineConfiguration")    public ProcessEngineConfigurationImpl processEngineConfiguration() {        SpringProcessEngineConfiguration processEngineConfiguration = new SpringProcessEngineConfiguration();        processEngineConfiguration.setDataSource(druidDataSource());        processEngineConfiguration.setTransactionManager(annotationDrivenTransactionManager());        //设置全局事件监听        processEngineConfiguration.setTypedEventListeners(this.getGlobalActivitiEventListener());        //重写节点行为        processEngineConfiguration.setActivityBehaviorFactory(new ActivityBehaviorFactory());        //设置主键生成        processEngineConfiguration.setIdGenerator(new ActivitiIdGenerator());        //设置函数        processEngineConfiguration.setBeans(FunctionFactory.getFunctionBeans());        return processEngineConfiguration;    }

但是这样的代码，在flowable不起作用。经分析，调整代码如下：

@Bean    public EngineConfigurationConfigurer
     
       customIdGeneratorConfigurer() {        return engineConfiguration -> {engineConfiguration.setIdGenerator( customIdGenerator());            engineConfiguration.setActivityBehaviorFactory(activityBehaviorFactory());            engineConfiguration.setTransactionManager(transactionManager);        };    }
     

经测试，功能OK!