QuerySyntaxException:unexpected token: ON [null] near line 1, column 135

Getting error that unexpected token: ON near line 1, column 135

解决方式：
No defined association in hbm.xml file

Hibernate HQL Inner Join

Query query = session.createQuery("from Cat cat inner join Owner 
owner where owner.Name ='Duke'");

No defined association in hbm.xml file

Query query = session.createQuery("from Cat cat inner join Owner
 owner on cat.OwnerId = owner.Id where owner.Name='Duke'");
But the query will fail with the following error message:

Caused by: org.hibernate.hql.ast.QuerySyntaxException: 
unexpected token: on near line 1, column xx

Native SQL is the solution

import org.hibernate.SQLQuery;
...
SQLQuery query = session.createSQLQuery("SELECT cat.* from cat inner join owner
 on cat.owner_id = owner.id where owner.name=:username");
query.addEntity(Cat.class);
query.setInteger("username",'Duke');
List =query.list();

hibernate框架在映射数据库表时，是将表转换为实体类，用操作数据对象代替操作表，这跟java语言面向对面象的操作原来一样，hql提供更加丰富灵活、更为强大的查询能力，hql语句对应实体类和实体类的属性进行了封装，查询语句from后面接的不是表名称，而是javabean实体对象名，where条件后面的不是表字段，而是javabean实体属性名。

session.createQuery(sql);
session.createSQLQuerysql);

---

QuerySyntaxException: unexpected token: user_id near line 1, column 29

QuerySyntaxException: unexpected token: user_id near line 1, column 29
 [from model.Demand d where d user_id=? order by d.id desc]

查询语法错

user_id在Demand的User中 
 正确的写法from Demand d where d.user.id=? order by d.id desc

---

unexpected token: null near line 1, column 290

org.hibernate.hql.internal.ast.QuerySyntaxException: 
unexpected token: null near line 1, column 290 
[select count(*) from cn.com.taiji.sample.entity.User t 
where 1=1 and (t.name like :userName or t.namePy like :userName or
t.loginName like :userName and t.status =:status 
and not exists(select b.user from cn.com.sample.entity.UserRole b 
where b.role.id =:roleId and b.user.id = t.id)]

这是我报的错误，报错的原因属于语法格式的错误，整个HQL语句也在这里，
结合网上查找的解决办法，总结如下：

1、多余的空格；

2、字符串引号应该为单引号；

3、=：应该是在一起的，中间没有空格，‘like ：’中介需要有空格，
其实这里没这么严谨，只是以防万一；

4、括号，我出的问题就是左括号比右括号多了一个；

5、一条SQL或者HQL语句中只能有一个order by（在没有子查询的前提下）
，所以如果有多个需要参照的排序条件，
那么就在order by后加上，每个条件之间用逗号隔开，比如：
from Topic t order by t.postTime desc,t.lastUpdatedTime asc；