druid处理clob类型时报类型转换错误java.lang.ClassCast?报错

@wenshao 你好，想跟你请教个问题：

业务表其中有一个字段是clob类型，使用jdbcTemplate查询，返回结果集时报错：

java.lang.ClassCastException: com.alibaba.druid.proxy.jdbc.ClobProxyImpl cannot be cast to java.lang.String

PreparedStatementCallback; uncategorized SQLException for SQL [select * from  (select * from xxxwhere project_id = ? and log_time >=to_date(?,'yyyy-mm-dd hh24:mi:ss') and log_time <= to_date(?,'yyyy-mm-dd hh24:mi:ss') order by total_time desc)  where rownum <= ?]; SQL state [null]; error code [0]; Error

entity代码如下

...
	private String executedSql;
...
	@Lob 
	@Basic(fetch = FetchType.EAGER) 
	@Column(name="executedSql", columnDefinition="CLOB", nullable=true) 
	public String getExecutedSql() {
		return executedSql;
	}
...