Hibernate框架中Criteria的示例查询问题

今天在用Criteria的示例查询时,用了主键查询,怎么弄也是会出现全部的结果,具体代码如下:

public List<FilmInfo> queryFilmInfoByExample(FilmInfo filmInfo) {
// TODO Auto-generated method stub
List<FilmInfo> filmList = new ArrayList<FilmInfo>();
Session session = null;
try{
session = HibernateSessionFactory.getSession();
Criteria criteria = session.createCriteria(FilmInfo.class);
criteria.add(Example.create(filmInfo).excludeZeroes());		//示例查询
filmList  = criteria.list();
}catch(HibernateException e){
e.printStackTrace();
}
return filmList;
}

持久化类是:

public class FilmInfo {
private int filmId;
private String filmName;
private String actor;
private String director;
private int ticketPrice;
private FilmType filmType;

public FilmType getFilmType() {
return filmType;
}
public void setFilmType(FilmType filmType) {
this.filmType = filmType;
}
public int getFilmId() {
return filmId;
}
public void setFilmId(int filmId) {
this.filmId = filmId;
}
public String getFilmName() {
return filmName;
}
public void setFilmName(String filmName) {
this.filmName = filmName;
}
public String getActor() {
return actor;
}
public void setActor(String actor) {
this.actor = actor;
}
public String getDirector() {
return director;
}
public void setDirector(String director) {
this.director = director;
}
public int getTicketPrice() {
return ticketPrice;
}
public void setTicketPrice(int ticketPrice) {
this.ticketPrice = ticketPrice;
}

}

测试代码:

public static void main(String[] args) {
FilmInfo f = new FilmInfo();
f.setFilmId(11);
FilmDaoImpl fd = new FilmDaoImpl();
List<FilmInfo> list = fd.queryFilmInfoByExample(f);
for (FilmInfo filmInfo2 : list) {
System.out.println(filmInfo2.getFilmId()+"\t"+filmInfo2.getFilmName()+"\t"+filmInfo2.getActor());
}
}

在控制台打印出的SQl语句是:

Hibernate: select this_.FILMID as FILMID0_0_, this_.FILMNAME as FILMNAME0_0_, this_.ACTOR as ACTOR0_0_, this_.DIRECTOR as DIRECTOR0_0_, this_.ticketPrice as ticketPr5_0_0_, this_.TYPE_ID as TYPE6_0_0_ from java11.FILMINFO this_ where (1=1)

结果为:

42 兵临城下
让-雅克·阿诺

11 变形金刚3:黑月降临
迈克尔·贝

12 星际迷航
William Shatner

21 小时代
郭敬明

22 被偷走的那五年
黄真真

31 九品芝麻官之白面包青天王晶

32 举起手来（之二）追击阿多丸冯小宁

41 斯巴达300勇士
扎克·施耐德

51 先知 亚历克斯·普罗亚斯

52 大侦探福尔摩斯2：诡影游戏盖·里奇

61 海洋 雅克·贝汉；雅克·克鲁奥德

62 非洲2013
戴维·爱丁保罗夫

实在是弄不明白为什么最后的查询条件编程了where(1=1),

解决办法:

这个例子告诉我Creteria.

createCriteria(FilmInfo.class);的工作机制,不支持主键查询,否则结果为全部结果,

示例查询适合动态查询，如果用主键查询属于静态查询，得用HQL