public class ReportInfo implements Serializable{
/**返回报表持久化类*/
/** 此结果集应为 data表,人员表,部门表,系统表*/
/** 此结果集是报表显示的基本数据集*/
/**
data_id 数据表ID
data_time 数据日期
data_e_id 人员ID
data_data 数据信息
e_No 人员工号
e_name 人员姓名
data_d_id 部门ID
d_name 部门名称
s_id 系统ID
s_name 系统名称
*/
private Integer data_id;
private String data_time;
private Integer data_e_id;
private String data_data;
private String e_No;
private String e_name;
private Integer d_id;
private String d_name;
private Integer s_id;
private String s_name;
/** dao层代码*/
/** 根据日期查询日报信息 */
public List selectForDataInfo(String string) {
ReportInfo reportInfo =null;
/** 通过getHibernateTemplate()获取Session*/
Session currentSession = this.getHibernateTemplate()
.getSessionFactory().getCurrentSession();
Transaction transaction = currentSession.beginTransaction();
/**此处sql 大意是根据s_table 表 left join 了四次*/
String SQL = "SELECT info.data_id,info.data_time,info.data_e_id,info.data_data,e.e_No,e.e_name,d.d_id,d.d_name,s.s_id,s.s_name FROM s_table s LEFT JOIN d_table d ON s.d_id= d.d_id LEFT JOIN datainfo_table info ON s.s_id = info.data_s_id AND info.data_time LIKE '%"+string+"%' LEFT JOIN e_table e ON info.data_s_id=e.e_id";
//SELECT aaa.data_id,aaa.data_time,aaa.data_e_id,aaa.data_data,aaa.e_No,aaa.e_name,s.d_id,aaa.d_name,s.s_id,s.s_name FROM s_table s LEFT JOIN (SELECT df.data_id,df.data_time,df.data_d_id,df.data_data,df.data_s_id,df.data_e_id,e.e_No,e.e_name,d.d_name,s.s_id,s.s_name FROM datainfo_table df,d_table d,e_table e,s_table s WHERE df.data_e_id=e.e_id AND df.data_d_id = d.d_id AND df.data_s_id=s.s_id AND df.data_time LIKE '%2016-08-28%' ) aaa ON aaa.s_id =s.s_id;
//SELECT aaa.data_id data_id,aaa.data_time,aaa.data_e_id,aaa.data_data,aaa.e_No,aaa.e_name,s.d_id,aaa.d_name,s.s_id,s.s_name FROM s_table s LEFT JOIN (SELECT df.data_id,df.data_time,df.data_d_id,df.data_data,df.data_s_id,df.data_e_id,e.e_No,e.e_name,d.d_name,s.s_id,s.s_name FROM datainfo_table df,d_table d,e_table e,s_table s WHERE df.data_e_id=e.e_id AND df.data_d_id = d.d_id AND df.data_s_id=s.s_id AND df.data_time LIKE '%"+string+"%' ) aaa ON aaa.s_id =s.s_id;
/** 通过Session.createSQLQuery(SQL)方法,可以使用SQL语句*/
/** addEntity(ReportInfo.class)方法指明结果集用哪个持久化类接收*/
/** 此持久化类在数据库表中的体现一直为null,只用于接收结果用*/
SQLQuery createSQLQuery = currentSession.createSQLQuery(SQL).addEntity(ReportInfo.class);
List<ReportInfo> lists =createSQLQuery.list();
for(ReportInfo rt:lists){
System.out.println(rt+"66666");
}
transaction.commit();
return lists;
}
sql执行正确,但是返回值ReportInfo只有4个字段有值。大神帮忙看看。