Hibernate错误：Unable to locate appropriate constructor on class

Hibernate异常：Unable to locate appropriate constructor on class

Java code

      public List getCity() {   //方法        // TODO Auto-generated method stub        session = HibernateSessionFactory.getSession();        List list  =  session.createQuery("select new com.snzo.dao.WorldOnlinePortCity(wp.id,wp.name) from WorldOnlinePortCity as wp").list();    //用过直接 new WorldOnlinePortCity(wp.id,wp.name)        session.close();        return list ;    }    public static void main(String []args){  测试         List list = new City_Imp().getCity();        for(Iterator it = list.iterator();it.hasNext();){            WorldOnlinePortCity goods = (WorldOnlinePortCity)it.next();            System.out.println(goods.getId());        }    }          public class WorldOnlinePortCity implements java.io.Serializable {   //持久化类    // Fields    private Long id;           private String name;        private String des;      private Set city;            // Constructors    /** default constructor */    public WorldOnlinePortCity() {  //默认构造    }    /** minimal constructor *///    public WorldOnlinePortCity(Long id) {//        this.id = id;//    }    /** full constructor */    public WorldOnlinePortCity(Long id, String name, String des,Set city) {   //构造函数        this.id = id;        this.name = name;        this.des = des;        this.city=city;    //Set 类型 不写也试验过 报一样的错。    }   不管 怎么写 都这这样的错误    错误:Exception in thread "main" org.hibernate.hql.ast.QuerySyntaxException: Unable to locate appropriate constructor on class [com.snzo.dao.WorldOnlinePortCity] [select new com.snzo.dao.WorldOnlinePortCity(wp.id,wp.name) from com.snzo.dao.WorldOnlinePortCity as wp]    at org.hibernate.hql.ast.ErrorCounter.throwQueryException(ErrorCounter.java:59)    at org.hibernate.hql.ast.QueryTranslatorImpl.analyze(QueryTranslatorImpl.java:225)    at org.hibernate.hql.ast.QueryTranslatorImpl.doCompile(QueryTranslatorImpl.java:158)    at org.hibernate.hql.ast.QueryTranslatorImpl.compile(QueryTranslatorImpl.java:109)    at org.hibernate.engine.query.HQLQueryPlan.<init>(HQLQueryPlan.java:75)    at org.hibernate.engine.query.HQLQueryPlan.<init>(HQLQueryPlan.java:54)    at org.hibernate.engine.query.QueryPlanCache.getHQLQueryPlan(QueryPlanCache.java:71)    at org.hibernate.impl.AbstractSessionImpl.getHQLQueryPlan(AbstractSessionImpl.java:133)    at org.hibernate.impl.AbstractSessionImpl.createQuery(AbstractSessionImpl.java:112)    at org.hibernate.impl.SessionImpl.createQuery(SessionImpl.java:1583)    at com.snzo.bo.City_Imp.getCity(City_Imp.java:75)    at com.snzo.bo.City_Imp.main(City_Imp.java:81)Caused by:  Unable to locate appropriate constructor on class [com.snzo.dao.WorldOnlinePortCity][cause=org.hibernate.PropertyNotFoundException: no appropriate constructor in class: com.snzo.dao.WorldOnlinePortCity]    at org.hibernate.hql.ast.tree.ConstructorNode.resolveConstructor(ConstructorNode.java:122)    at org.hibernate.hql.ast.tree.ConstructorNode.prepare(ConstructorNode.java:88)    at org.hibernate.hql.ast.HqlSqlWalker.processConstructor(HqlSqlWalker.java:837)    at org.hibernate.hql.antlr.HqlSqlBaseWalker.selectExpr(HqlSqlBaseWalker.java:1952)    at org.hibernate.hql.antlr.HqlSqlBaseWalker.selectExprList(HqlSqlBaseWalker.java:1821)    at org.hibernate.hql.antlr.HqlSqlBaseWalker.selectClause(HqlSqlBaseWalker.java:1392)    at org.hibernate.hql.antlr.HqlSqlBaseWalker.query(HqlSqlBaseWalker.java:553)    at org.hibernate.hql.antlr.HqlSqlBaseWalker.selectStatement(HqlSqlBaseWalker.java:281)    at org.hibernate.hql.antlr.HqlSqlBaseWalker.statement(HqlSqlBaseWalker.java:229)    at org.hibernate.hql.ast.QueryTranslatorImpl.analyze(QueryTranslatorImpl.java:218)    ... 10 more    // 在线查了很多资料 依然没有找到原因 在线等 高手 解答 谢谢.

而你的hql语句只给了2个参数。。
select new com.snzo.dao.WorldOnlinePortCity(wp.id,wp.name) from WorldOnlinePortCity as wp
[解决办法]