Correct the classpath of your application so that it contains compatible versions of the classes com

Posted 2022-08-04 穆雄雄

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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。