Cause: java.sql.SQLException: java.lang.NoClassDefFoundError: Could not initialize class io.seata.rm.datasource.sql.struct.TableMetaCache
; uncategorized SQLException; SQL state [null]; error code [0]; java.lang.NoClassDefFoundError: Could not initialize class io.seata.rm.datasource.sql.struct.TableMetaCache; nested exception is java.sql.SQLException: java.lang.NoClassDefFoundError: Could not initialize class io.seata.rm.datasource.sql.struct.TableMetaCache] with root cause

原因：

jar包冲突 ，删除spring-cloud-alibaba-seata就好了

   <dependency>
        <groupId>com.alibaba.cloud</groupId>
        <artifactId>spring-cloud-alibaba-seata</artifactId>
        <version>2.1.0.RELEASE</version>
    </dependency> 
    <dependency>
        <groupId>io.seata</groupId>
        <artifactId>seata-all</artifactId>
        <version>0.9.0</version>
    </dependency>