在使用springboot集成camunda卡蒙达工作流引擎时报错，报错信息如下：
Description:
An attempt was made to call a method that does not exist. The attempt was made from the following location:
com.baomidou.mybatisplus.core.MybatisMapperAnnotationBuilder.getLanguageDriver(MybatisMapperAnnotationBuilder.java:385)
The following method did not exist:
org.apache.ibatis.session.Configuration.getLanguageDriver(Ljava/lang/Class;)Lorg/apache/ibatis/scripting/LanguageDriver;
The calling method’s class, com.baomidou.mybatisplus.core.MybatisMapperAnnotationBuilder, was loaded from the following location:
jar:file:/G:/repository/com/baomidou/mybatis-plus-core/3.5.1/mybatis-plus-core-3.5.1.jar!/com/baomidou/mybatisplus/core/MybatisMapperAnnotationBuilder.class
The called method’s class, org.apache.ibatis.session.Configuration, is available from the following locations:
jar:file:/G:/repository/org/mybatis/mybatis/3.4.4/mybatis-3.4.4.jar!/org/apache/ibatis/session/Configuration.class
The called method’s class hierarchy was loaded from the following locations:
org.apache.ibatis.session.Configuration: file:/G:/repository/org/mybatis/mybatis/3.4.4/mybatis-3.4.4.jar
Action:
Correct the classpath of your application so that it contains compatible versions of the classes com.baomidou.mybatisplus.core.MybatisMapperAnnotationBuilder and org.apache.ibatis.session.Configuration
解决方法
这个报错原因是因为我框架里面本身已经引入了mybatis的依赖了，而camunda里面也带了mybatis，所以只需要在引入camunda的时候排除掉mybatis即可。
原来代码：
<dependency> <groupId>org.camunda.bpm.springboot</groupId> <artifactId>camunda-bpm-spring-boot-starter</artifactId> <version>3.4.0</version> </dependency> <dependency> <groupId>org.camunda.bpm.springboot</groupId> <artifactId>camunda-bpm-spring-boot-starter-rest</artifactId> <version>3.4.0</version> </dependency> <dependency> <groupId>org.camunda.bpm.springboot</groupId> <artifactId>camunda-bpm-spring-boot-starter-webapp</artifactId> <version>3.4.0</version> </dependency>
解决后的代码：
<dependency> <groupId>org.camunda.bpm.springboot</groupId> <artifactId>camunda-bpm-spring-boot-starter</artifactId> <exclusions> <exclusion> <groupId>org.mybatis</groupId> <artifactId>mybatis</artifactId> </exclusion> </exclusions> <version>3.4.0</version> </dependency> <dependency> <groupId>org.camunda.bpm.springboot</groupId> <artifactId>camunda-bpm-spring-boot-starter-rest</artifactId> <exclusions> <exclusion> <groupId>org.mybatis</groupId> <artifactId>mybatis</artifactId> </exclusion> </exclusions> <version>3.4.0</version> </dependency> <dependency> <groupId>org.camunda.bpm.springboot</groupId> <artifactId>camunda-bpm-spring-boot-starter-webapp</artifactId> <exclusions> <exclusion> <groupId>org.mybatis</groupId> <artifactId>mybatis</artifactId> </exclusion> </exclusions> <version>3.4.0</version> </dependency>
刷新maven依赖即可解决问题。
