1.需求分析
2.导包,导项目,配置过滤器如下图.
3.创建web.action包.下面创建一个CustomerAction文件.
package com.itheima.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.itheima.domain.Customer;
import com.itheima.service.CustomerService;
import com.itheima.service.impl.CustomerServiceImpl;
import com.opensymphony.xwork2.ActionSupport;
//继承ActionSupport
public class CustomerAction extends ActionSupport {
private CustomerService cs= new CustomerServiceImpl();
public String list() throws Exception {
// TODO Auto-generated method stub
//1接受参数
//工具类原生的,获得原始的
String cust_name = ServletActionContext.getRequest().getParameter("cust_name");
//2.创建离线查询
DetachedCriteria dc = DetachedCriteria.forClass(Customer.class);
//3.判断参数拼装条件
//只用struts2才有这个包commonse-lang-3-3.2
if(StringUtils.isNotBlank(cust_name)){
dc.add(Restrictions.like("cust_name", "%"+cust_name+"%"));
}
//4.调用Servlet将离线对象传递
List<Customer> list=cs.getAll(dc);
//5.将返回list放入到request域
ServletActionContext.getRequest().setAttribute("list", list);
return "list";//准发到list页面
}
}
4.配置struts.xml文件
5.修改list.jsp里面的路径
6.修改menu.jsp路径
7.配置过滤器
8.看效果.