camunda工作流引擎介绍二：自定义用户插件-附源码

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概述

上篇介绍了camunda工作流引擎的入门知识( )。这篇将针对camunda用户体系做深入定制化集成，让引擎工具更好的与业务相结合。

实现思路

通过实现camunda定义的用户读写接口，并采用插件机制运行时注入到工作流引擎中，从而达到定制化用户替换框架默认用户体系的目的。

Identity Service

实现接口

•org.camunda.bpm.engine.impl.identity.ReadOnlyIdentityProvider

•org.camunda.bpm.engine.impl.identity.WritableIdentityProvider

Process Engine Plugin

插件实现说明:

https://docs.camunda.org/manual/7.7/user-guide/process-engine/process-engine-plugins/

插件实现接口:

org.camunda.bpm.engine.impl.cfg.ProcessEnginePlugin

Configure Process Engine Plugins

configure a process engine plugin in a bpm-platform.xml

<bpm-platform> xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
 xsi:schemaLocation="http://www.camunda.org/schema/1.0/BpmPlatform http://www.camunda.org/schema/1.0/BpmPlatform ">
 <job-executor>
 <job-acquisition>
 /<job-executor>
 <process-engine>
 <job-acquisition>default/<job-acquisition>
 <configuration>org.camunda.bpm.engine.impl.cfg.JtaProcessEngineConfiguration/<configuration>
 <datasource>jdbc/ProcessEngine/<datasource>
 <plugins>
 <plugin>
 <class>org.camunda.bpm.engine.MyCustomProcessEnginePlugin/<class>
 <properties>
 <property>10/<property>
 <property>true/<property>
 <property>akka/<property>
 /<properties>
 /<plugin>
 /<plugins>
 /<process-engine>
/<bpm-platform>

configure a process engine plugin in a spring beans xml

<beans> xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
 xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd">
 <bean>
 ...
 <property>
 <list>
 
 /<list>
 /<property>
 /<bean>
 <bean>
 <property>
 <property>
 <property>
 <property>
 <property>
 <property>
 <property>
 <property>
 <property> 

 <property>
 <property>
 <property>
 <property>
 <property>
 <property>
 <property>
 <property>
 /<bean>
/<beans>

Process Engine Plugins UML

Process Engine Plugins 注意事项

•UserEntity和GroupEntity id属性表示业务系统中登陆用户名，非系统id主键。

•UserEntity password对应设置属性方法为setDbPassword，非setPassword。 setPassword表示修改密码的新密码属性方法入口。

Process Engine Plugins 集成示例

demo源代码实现请参考以下代码仓库地址

https://github.com/eagle00001/camunda-user-plugin-demo