1 src下配置文件

1 struts.xml

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE struts PUBLIC
"-//Apache Software Foundation//DTD Struts Configuration 2.3//EN"
"http://struts.apache.org/dtds/struts-2.3.dtd">
<struts>
<!-- 指定struts2是否以开发模式运行
1.热加载主配置.(不需要重启即可生效)
2.提供更多错误信息输出,方便开发时的调试
-->
<constant name="struts.devMode" value="true"></constant>
<package name="crm" namespace="/" extends="struts-default" >
<action name="CustomerAction_*" class="www.test.web.action.CustomerAction" method="{1}" >
<result name="list" >/jsp/customer/list.jsp</result>
<result name="toList" type="redirectAction">
<param name="actionName">CustomerAction_list</param>
<param name="namespace">/</param>
</result>
</action>
</package>
</struts>

2 hibernate.cfg.xml

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE hibernate-configuration PUBLIC
"-//Hibernate/Hibernate Configuration DTD 3.0//EN"
"http://www.hibernate.org/dtd/hibernate-configuration-3.0.dtd">
<hibernate-configuration>
<session-factory>

<!--
#hibernate.dialect org.hibernate.dialect.MySQLDialect
#hibernate.dialect org.hibernate.dialect.MySQLInnoDBDialect
#hibernate.dialect org.hibernate.dialect.MySQLMyISAMDialect
#hibernate.connection.driver_class com.mysql.jdbc.Driver
#hibernate.connection.url jdbc:mysql:///test
#hibernate.connection.username gavin
#hibernate.connection.password
-->
<!-- 数据库驱动 -->
<property name="hibernate.connection.driver_class">com.mysql.jdbc.Driver</property>
<!-- 数据库url -->
<property name="hibernate.connection.url">jdbc:mysql:///hibernate</property>
<!-- 数据库连接用户名 -->
<property name="hibernate.connection.username">root</property>
<!-- 数据库连接密码 -->
<property name="hibernate.connection.password">root</property>
<!-- 数据库方言
不同的数据库中,sql语法略有区别. 指定方言可以让hibernate框架在生成sql语句时.针对数据库的方言生成.
sql99标准: DDL 定义语言  库表的增删改查
DCL 控制语言  事务 权限
DML 操纵语言  增删改查
注意: MYSQL在选择方言时,请选择最短的方言.
-->
<property name="hibernate.dialect">org.hibernate.dialect.MySQLDialect</property>

<!-- #hibernate.show_sql true
#hibernate.format_sql true
-->
<!-- 将hibernate生成的sql语句打印到控制台 -->
<property name="hibernate.show_sql">true</property>
<!-- 将hibernate生成的sql语句格式化(语法缩进) -->
<property name="hibernate.format_sql">true</property>
<!--
## auto schema export  自动导出表结构. 自动建表
#hibernate.hbm2ddl.auto create        自动建表.每次框架运行都会创建新的表.以前表将会被覆盖,表数据会丢失.(开发环境中测试使用)
#hibernate.hbm2ddl.auto create-drop 自动建表.每次框架运行结束都会将所有表删除.(开发环境中测试使用)
#hibernate.hbm2ddl.auto update(推荐使用) 自动生成表.如果已经存在不会再生成.如果表有变动.自动更新表(不会删除任何数据).
#hibernate.hbm2ddl.auto validate    校验.不自动生成表.每次启动会校验数据库中表是否正确.校验失败.
-->
<property name="hibernate.hbm2ddl.auto">update</property>

<!-- 指定hibernate操作数据库时的隔离级别
#hibernate.connection.isolation 1|2|4|8
0001    1    读未提交
0010    2    读已提交
0100    4    可重复读
1000    8    串行化
-->
<property name="hibernate.connection.isolation">4</property>

<!-- 指定session与当前线程绑定 -->
<property name="hibernate.current_session_context_class">thread</property>

<!-- 引入orm元数据
路径书写: 填写src下的路径
-->
<mapping resource="www/test/domain/Customer.hbm.xml" />
<mapping resource="www/test/domain/LinkMan.hbm.xml" />

</session-factory>
</hibernate-configuration>

3 web-CustomerAction

package www.test.web.action;

import java.util.List;

import org.apache.commons.lang3.StringUtils;
import org.apache.struts2.ServletActionContext;
import org.hibernate.criterion.DetachedCriteria;
import org.hibernate.criterion.Restrictions;

import com.opensymphony.xwork2.ActionSupport;
import com.opensymphony.xwork2.ModelDriven;

import www.test.domain.Customer;
import www.test.service.CustomerService;
import www.test.service.impl.CustomerServiceImpl;

public class CustomerAction extends ActionSupport implements ModelDriven<Customer> {
private CustomerService cs = new CustomerServiceImpl();
private Customer customer = new Customer();

//1 获取客户列表
public String list() throws Exception {
//1 接受参数
String cust_name = ServletActionContext.getRequest().getParameter("cust_name");
//2 创建离线查询对象
DetachedCriteria dc =DetachedCriteria.forClass(Customer.class);
//3 判断参数拼装条件
if(StringUtils.isNotBlank(cust_name)){
dc.add(Restrictions.like("cust_name", "%"+cust_name+"%"));
}
//4 调用Service将离线对象传递
List<Customer> list = cs.getAll(dc);
//5 将返回的list放入request域.转发到list.jsp显示
ServletActionContext.getRequest().setAttribute("list", list);
return "list";
}

//2 新增客户
public String add() throws Exception{
//调用service保存客户
cs.save(customer);
//重定向到列表Action方法
return "toList";
}

@Override
public Customer getModel() {

return customer;
}
}

4 service层

public void save(Customer c) {
Session session =  HibernateUtils.getCurrentSession();
//打开事务
Transaction tx = session.beginTransaction();
//调用Dao保存客户
try {
customerDao .save(c);
} catch (Exception e) {
e.printStackTrace();
tx.rollback();
}
//关闭事务
tx.commit();
}

5 dao层

public void save(Customer c) {
//1 获得session
Session session = HibernateUtils.getCurrentSession();
//3 执行保存
session.save(c);
}