命名查询的sql语句的问题

import java.util.HashSet;


import java.util.Set;








public class Person ...{


private Long id;


private int age;


private String firstName;


private String lastName;


private Set events = new HashSet();




public Set getEvents() ...{


return events;


}




public void setEvents(Set events) ...{


this.events = events;


}




public int getAge() ...{


return age;


}




public void setAge(Integer age) ...{


this.age = age;


}




public String getFirstName() ...{


return firstName;


}




public void setFirstName(String firstName) ...{


this.firstName = firstName;


}




public Long getId() ...{


return id;


}




public void setId(Long id) ...{


this.id = id;


}




public String getLastName() ...{


return lastName;


}




public void setLastName(String lastName) ...{


this.lastName = lastName;


}




}


<?xml version="1.0"?>


<!DOCTYPE hibernate-mapping PUBLIC


"-//Hibernate/Hibernate Mapping DTD 3.0//EN"


"http://hibernate.sourceforge.net/hibernate-mapping-3.0.dtd">




<hibernate-mapping package="com.namequery.bean">




<class name="Person" table="HI_PERSON">


<id name="id" column="PERSON_ID">


<generator class="native" />


</id>


<property name="age" type="java.lang.Integer" />


<property name="firstName" column="fName">




</property>


<property name="lastName" column="lName" />


<set name="events" table="PERSON_EVENT">


<key column="PERSON_ID"></key>


<many-to-many column="EVENT_ID"


class="com.namequery.bean.Event" />


</set>


</class>


<query name="persons">


<![CDATA[


from Person


]]>


</query>


<sql-query name="mySqlQuery">


<return alias="p" class="Person" />




SELECT ...{p.*} FROM HI_PERSON p WHERE p.age=22


</sql-query>


</hibernate-mapping>


tx = session.beginTransaction();




List people = session.getNamedQuery("mySqlQuery").list();

问题是 本人开始写了

<sql-query name="mySqlQuery">


<return alias="p" class="Person" />




SELECT * FROM HI_PERSON p WHERE p.age=22


</sql-query>

报错误如下：


Hibernate: SELECT * FROM HI_PERSON p WHERE p.age=26


org.hibernate.exception.GenericJDBCException: could not execute query


at org.hibernate.exception.SQLStateConverter.handledNonSpecificException(SQLStateConverter.java:82)


at org.hibernate.exception.SQLStateConverter.convert(SQLStateConverter.java:70)


at org.hibernate.exception.JDBCExceptionHelper.convert(JDBCExceptionHelper.java:43)


at org.hibernate.loader.Loader.doList(Loader.java:1565)


at org.hibernate.loader.Loader.list(Loader.java:1545)


at org.hibernate.loader.custom.CustomLoader.list(CustomLoader.java:103)


at org.hibernate.impl.SessionImpl.listCustomQuery(SessionImpl.java:1406)


at org.hibernate.impl.SQLQueryImpl.list(SQLQueryImpl.java:151)


at com.namequery.NameQueryTest.main(NameQueryTest.java:30)


Caused by: com.microsoft.sqlserver.jdbc.SQLServerException: 列名 PERSON1_0_ 无效。


at com.microsoft.sqlserver.jdbc.SQLServerException.makeFromDriverError(Unknown Source)


at com.microsoft.sqlserver.jdbc.SQLServerResultSet.findColumn(Unknown Source)


at com.microsoft.sqlserver.jdbc.SQLServerResultSet.getLong(Unknown Source)

若写成 <sql-query name="mySqlQuery">


<return alias="person" class="Person" />




SELECT {p.* } FROM HI_PERSON p WHERE p.age=22


</sql-query>

报




Hibernate: SELECT ...{p.*} FROM HI_PERSON p WHERE p.age=26


org.hibernate.exception.SQLGrammarException: could not execute query


at org.hibernate.exception.SQLStateConverter.convert(SQLStateConverter.java:59)


at org.hibernate.exception.JDBCExceptionHelper.convert(JDBCExceptionHelper.java:43)


at org.hibernate.loader.Loader.doList(Loader.java:1565)


at org.hibernate.loader.Loader.list(Loader.java:1545)


at org.hibernate.loader.custom.CustomLoader.list(CustomLoader.java:103)


at org.hibernate.impl.SessionImpl.listCustomQuery(SessionImpl.java:1406)


at org.hibernate.impl.SQLQueryImpl.list(SQLQueryImpl.java:151)


at com.namequery.NameQueryTest.main(NameQueryTest.java:30)


Caused by: com.microsoft.sqlserver.jdbc.SQLServerException: '.' 附近有语法错误。


at com.microsoft.sqlserver.jdbc.SQLServerException.makeFromDatabaseError(Unknown Source)


at com.microsoft.sqlserver.jdbc.SQLServerStatement.getNextResult(Unknown Source)

<sql-query name="mySqlQuery">
<return alias="p" class="Person" />

SELECT p.AGE as {p.age} FROM HI_PERSON p WHERE p.age=26
</sql-query>


Hibernate: SELECT p.AGE as AGE5_0_ FROM HI_PERSON p WHERE p.age=26


org.hibernate.exception.GenericJDBCException: could not execute query


at org.hibernate.exception.SQLStateConverter.handledNonSpecificException(SQLStateConverter.java:82)


at org.hibernate.exception.SQLStateConverter.convert(SQLStateConverter.java:70)


at org.hibernate.exception.JDBCExceptionHelper.convert(JDBCExceptionHelper.java:43)


at org.hibernate.loader.Loader.doList(Loader.java:1565)


at org.hibernate.loader.Loader.list(Loader.java:1545)


at org.hibernate.loader.custom.CustomLoader.list(CustomLoader.java:103)


at org.hibernate.impl.SessionImpl.listCustomQuery(SessionImpl.java:1406)


at org.hibernate.impl.SQLQueryImpl.list(SQLQueryImpl.java:151)


at com.namequery.NameQueryTest.main(NameQueryTest.java:30)


Caused by: com.microsoft.sqlserver.jdbc.SQLServerException: 列名 PERSON1_0_ 无效。


at com.microsoft.sqlserver.jdbc.SQLServerException.makeFromDriverError(Unknown Source)


at com.microsoft.sqlserver.jdbc.SQLServerResultSet.findColumn(Unknown Source)

只有改成

<sql-query name="mySqlQuery">
<return alias="p" class="Person" />

SELECT {p.*} FROM HI_PERSON p WHERE p.age=26
</sql-query>

才正确。

听别人说

<sql-query name="mySqlQuery">
<return alias="p" class="Person" />

SELECT p.AGE as {p.age} FROM HI_PERSON p WHERE p.age=26
</sql-query> 把所有的对应列写全了。也可以正确。

但本人没有去尝试