hql查询pojo类中关联对象使用关联对象的属性条件时，出现Invalid path: 'xx.xx'的解决方法

原创于 2017-07-10 10:11:25 发布 · 823 阅读

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class Student {
    private ClassRoom classroom;
    private String name;
    public void setClassRoom(ClassRoom classroom) {
        this.classroom = classroom;
    }
    public ClassRoom getClassRoom() {
        return classroom;
    }
    public void setName(String name) {
        this.name = name;
    }
    public String getName() {
        return name;
    }
}

比如查询classroom则是

String hql = "select  classroom from Student s where s.classroom.name =:classname"

如果去掉别名的条件,则会提示Invalid path: ‘classroom .name’