启动报错如下：

 java.sql.SQLException: sql injection violation, comment not allow : select * from ( select a.*, ROWNUM rnum from (select RES.ID_,RES.REV_,RES.DUEDATE_,RES.PROCESS_INSTANCE_ID_,RES.EXCLUSIVE_from ACT_RU_JOB RESwhere (RES.RETRIES_ > 0)and (RES.DUEDATE_ is null orRES.DUEDATE_ <= ?)and (RES.LOCK_OWNER_ is null or RES.LOCK_EXP_TIME_ < ?)and RES.SUSPENSION_STATE_ = 1and ( ( RES.EXCLUSIVE_ = 1and not exists(select J2.ID_ from ACT_RU_JOB J2where J2.PROCESS_INSTANCE_ID_ = RES.PROCESS_INSTANCE_ID_                                           -- from the same proc. inst.and (J2.EXCLUSIVE_ = 1)                                                              -- also exclusiveand (J2.LOCK_OWNER_ is not null and J2.LOCK_EXP_TIME_ >= ?)  -- in progress))orRES.EXCLUSIVE_ = 0)) a where ROWNUM < ?) where rnum  >= ?

原因是 使用了druid连接池，在执行sql语句的时候 不支持注释。因为camunda的sql语句是封装在jar里，这里无法修改sql，这里添加 druid配置

      druid: wall:comment-allow: true