1.复合主键:Object,hbm

package com.bjpowernode.hibernate;

import java.util.Date;

/**
* 核算期间
* @author wangy
*
*/
public class FiscalYearPeriod {

private FiscalYearPeriodPK fiscalYearPeriodPK;

//开始日期
private Date beginDate;

//结束日期
private Date endDate;

//状态
private String periodSts;

public Date getBeginDate() {
return beginDate;
}

public void setBeginDate(Date beginDate) {
this.beginDate = beginDate;
}

public Date getEndDate() {
return endDate;
}

public void setEndDate(Date endDate) {
this.endDate = endDate;
}

public String getPeriodSts() {
return periodSts;
}

public void setPeriodSts(String periodSts) {
this.periodSts = periodSts;
}

public FiscalYearPeriodPK getFiscalYearPeriodPK() {
return fiscalYearPeriodPK;
}

public void setFiscalYearPeriodPK(FiscalYearPeriodPK fiscalYearPeriodPK) {
this.fiscalYearPeriodPK = fiscalYearPeriodPK;
}
}

package com.bjpowernode.hibernate;

import java.io.Serializable;

public class FiscalYearPeriodPK implements Serializable {

//核算年
private int fiscalYear;

//核算月
private int fiscalPeriod;

public int getFiscalYear() {
return fiscalYear;
}

public void setFiscalYear(int fiscalYear) {
this.fiscalYear = fiscalYear;
}

public int getFiscalPeriod() {
return fiscalPeriod;
}

public void setFiscalPeriod(int fiscalPeriod) {
this.fiscalPeriod = fiscalPeriod;
}

@Override
public int hashCode() {
final int prime = 31;
int result = 1;
result = prime * result + fiscalPeriod;
result = prime * result + fiscalYear;
return result;
}

@Override
public boolean equals(Object obj) {
if (this == obj)
return true;
if (obj == null)
return false;
if (getClass() != obj.getClass())
return false;
final FiscalYearPeriodPK other = (FiscalYearPeriodPK) obj;
if (fiscalPeriod != other.fiscalPeriod)
return false;
if (fiscalYear != other.fiscalYear)
return false;
return true;
}

}

<?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>
<class name="com.bjpowernode.hibernate.FiscalYearPeriod" table="t_fiscal_year_period">
<composite-id name="fiscalYearPeriodPK">
<key-property name="fiscalYear"/>
<key-property name="fiscalPeriod"/>
</composite-id>
<property name="beginDate" type="date"/>
<property name="endDate" type="date"/>
<property name="periodSts"/>
</class>
</hibernate-mapping>