Hibernate 一对多映射关联映射

Hibernate 一对多映射

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public class Department{     private String departmentId;     private String departmentName;     private List<Employee> employee;    public Department() {    }    public Department(String departmentId) {        this.departmentId = departmentId;    }    public Department(String departmentId, String departmentName,List<Employee> personList) {       this.departmentId = departmentId;       this.departmentName = departmentName;       this.employee=personList;    }       public String getDepartmentId() {        return this.departmentId;    }        public void setDepartmentId(String departmentId) {        this.departmentId = departmentId;    }    public String getDepartmentName() {        return this.departmentName;    }        public void setDepartmentName(String departmentName) {        this.departmentName = departmentName;    }public List<Employee> getEmployee() {return employee;}public void setEmployee(List<Employee> employee) {this.employee = employee;}}public class Employee{     private String id;     private String name;     private String sex;     private Department department;     private IdentityCard identityCard;    public Employee() {    }    public Employee(String id) {        this.id = id;    }    public Employee(String id, String name, String sex ){       this.id = id;       this.name = name;       this.sex = sex;    }       public String getId() {        return this.id;    }        public void setId(String id) {        this.id = id;    }    public String getName() {        return this.name;    }        public void setName(String name) {        this.name = name;    }    public String getSex() {        return this.sex;    }        public void setSex(String sex) {        this.sex = sex;    }    public Department getDepartment() {        return this.department;    }        public void setDepartment(Department department) {        this.department = department;    }public IdentityCard getIdentityCard() {return identityCard;}public void setIdentityCard(IdentityCard identityCard) {this.identityCard = identityCard;}}

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<hibernate-mapping package="com.woo.demo.hibernate.domain">    <class name="Employee" table="EMPLOYEE">        <id name="id" type="java.lang.String">            <column name="ID" />            <generator type="text">            <column name="NAME" />        </property>        <property name="sex" type="string">            <column name="SEX" />        </property>        <many-to-one name="department" >            <column name="DEPARTMENT_ID"/>        </many-to-one>    </class></hibernate-mapping><hibernate-mapping package="com.woo.demo.hibernate.domain">    <class name="Department" table="DEPARTMENT">        <id name="departmentId" type="java.lang.String">            <column name="DEPARTMENT_ID" />            <generator />        </id>        <property name="departmentName" type="java.lang.String">            <column name="DEPARTMENT_NAME" />        </property>                <bag name="employee" cascade="save-update">        <key column="DEPARTMENT_ID"/>        <one-to-many alt="Hibernate 一对多投射关联映射">
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