1. singleResult返回多条数据报错
Deployment d = repositoryService.createDeploymentQuery().deploymentTenantId("1").singleResult();
singleResult如果返回2条数据，则会报错!
org.activiti.engine.ActivitiException: Query return 2 results instead of max 1activiti 报错信息
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转载自blog.csdn.net/kq1983/article/details/89211148
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