linux下tomcat添加服务

组件是针对同一张表中的字段进行映射,作用是将字段多的一张表分成多个实体类来表示。
如：name与user
user表中有first_name及last_name。在实体类中，自定义一个Name类来表示first_name与last_name;

Name实体类：

package cn.framelife.mvc.entity;

public class Name {
private String firstName;
private String lastName;

public String getFirstName() {
return firstName;
}

public void setFirstName(String firstName) {
this.firstName = firstName;
}

public String getLastName() {
return lastName;
}

public void setLastName(String lastName) {
this.lastName = lastName;
}

}

User实体类：

package cn.framelife.mvc.entity;

import java.io.Serializable;

public class User implements Serializable {
private Integer id;
private Name name;

public Integer getId() {
return id;
}

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

public Name getName() {
return name;
}

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

User.hbm.xml:

<hibernate-mapping>
<class name="cn.framelife.hibernate.entity.User" table="user" catalog="hibernate">
<id name="id" type="java.lang.Integer">
<column name="id" />
<generator class="native" />
</id>
<component name="name" class="cn.framelife.hibernate.entity.Name">
<property name="firstName" column="first_name"></property>
<property name="lastName" column="last_name"></property>
</component>
</class>
</hibernate-mapping>

增加操作：

tx = session.beginTransaction();
Name name = new Name();
name.setFirstName("111");
name.setLastName("2222");

User user = new User();
user.setName(name);
session.save(user);

tx.commit();