jeecg 3表联查

@RequestMapping(params = "datagrid")
public void datagrid(String caseId,ZlFjEntity zlFj,HttpServletRequest request, HttpServletResponse response, DataGrid dataGrid) {
CriteriaQuery cq = new CriteriaQuery(ZlFjEntity.class, dataGrid);

cq.createAlias("caseDataEntity", "data"); //中间表
cq.eq("data.caseInfosEntity.id", caseId); //中间表中的实体id
cq.add();

//查询条件组装器
org.jeecgframework.core.extend.hqlsearch.HqlGenerateUtil.installHql(cq, zlFj, request.getParameterMap());
this.zlFjService.getDataGridReturn(cq, true);
TagUtil.datagrid(response, dataGrid);
}