### Error querying database. Cause: com.mysql.jdbc.exceptions.MySQLSyntaxErrorException: Unknown column 'NAME_' in 'where clause'
### The error may exist in org/activiti/mapping/entity/Property.xml
### The error may involve org.activiti.engine.impl.persistence.entity.PropertyEntity.selectProperty-Inline
### The error occurred while setting parameters
### SQL: select * from ACT_GE_PROPERTY where NAME_ = ?
### Cause: com.mysql.jdbc.exceptions.MySQLSyntaxErrorException: Unknown column 'NAME_' in 'where clause' java
[org.apache.solr.client.solrj.impl.HttpClientUtil]Creating new http client, config:maxConnections=128&maxConnectionsPerHost=32&followRedirects=false
[org.jeecgframework.core.common.exception.MyExceptionHandler]org.apache.solr.client.solrj.impl.HttpSolrServer$RemoteSolrException: Server at http://127.0.0.1:8080/solr/collection1 returned non ok status:404, message:Not Found
------解决方案--------------------
这不写明了么。
Unknown column 'NAME_' in 'where clause'
你的where条件里是不是查询name_这个了？ 数据库里没有。