org.hibernate.PropertyNotFoundException: Could not find a getter for employee in class com.itcast.f_...

最新推荐文章于 2025-08-11 22:14:14 发布

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最新推荐文章于 2025-08-11 22:14:14 发布

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文章标签： java

原文链接：http://www.cnblogs.com/johnsonwei/p/5991497.html

本文介绍了一个Hibernate中部门与员工一对多的关系映射示例，并展示了如何通过配置文件实现这种关系。同时指出了一个常见错误：在映射文件中集合名称拼写错误可能导致的问题。

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<hibernate-mapping package="com.itcast.f_hbm_oneToMany">
    <class name="Department" table="department">

        <!--generator主键生成策略 -->
        <id name="id">
            <generator class="native" />
        </id>
        <property name="name" />
        <set name="employees">
            <key column="departmentID"></key>
            <one-to-many class="Employee"/>
        </set>
    </class>
</hibernate-mapping>

由于上面这个映射文件里我employees少写了s，造成了错误。映射文件里的属性是跟实体Department里的属性是一一对应的。实体Department如下：

public class Department {
    private Integer id;
    private String name;

    private Set<Employee> employees = new HashSet<Employee>(); // 关联的很多员工

    public Integer getId() {
        return id;
    }

    public void setId(Integer id) {
        this.id = id;
    }

    public String getName() {
        return name;
    }

    public void setName(String name) {
        this.name = name;
    }

    public Set<Employee> getEmployees() {
        return employees;
    }

    public void setEmployees(Set<Employee> employees) {
        this.employees = employees;
    }

    @Override
    public String toString() {
        return "[Department: id=" + id + ", name=" + name + "]";
    }

}