简单工作流——Web层控制器

超、凢脫俗 2021-07-25 00:16 354阅读 0赞

**一 配置文件**

<?xml version="1.0" encoding="utf-8"?>
    <web-app xmlns="http://xmlns.jcp.org/xml/ns/javaee"
         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee
         http://xmlns.jcp.org/xml/ns/javaee/web-app_3_1.xsd"  version="3.1">
         
         <filter>
               <filter-name>struts2</filter-name>
               <filter-class>org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter
               </filter-class>
         </filter>
         
         <filter-mapping>
               <filter-name>struts2</filter-name>
               <url-pattern>/*</url-pattern>
         </filter-mapping>
         
         <context-param>
               <param-name>contextConfigLocation</param-name>
               <param-value>/WEB-INF/applicationContext.xml,
                    /WEB-INF/daoContext.xml</param-value>
         </context-param>
         
         <listener>
               <listener-class>org.springframework.web.context.ContextLoaderListener
               </listener-class>
         </listener>
         <welcome-file-list>
               <welcome-file>index.jsp</welcome-file>
         </welcome-file-list>
    </web-app>

**二 EmpBaseAction**

package org.crazyit.hrsystem.action.base;
    
    
    import com.opensymphony.xwork2.ActionSupport;
    import org.crazyit.hrsystem.service.EmpManager;
    
    public class EmpBaseAction extends ActionSupport
    {
        // 依赖的业务逻辑组件
        protected EmpManager mgr;
        // 依赖注入业务逻辑组件所必须的setter方法
        public void setEmpManager(EmpManager mgr)
        {
            this.mgr = mgr;
        }
    }

**三 MgrBaseAction**

package org.crazyit.hrsystem.action.base;
    
    import com.opensymphony.xwork2.ActionSupport;
    import org.crazyit.hrsystem.service.MgrManager;
    
    
    public class MgrBaseAction extends ActionSupport
    {
        protected MgrManager mgr;
    
    
        public void setMgrManager(MgrManager mgr)
        {
            this.mgr = mgr;
        }
    }

**四 AddEmpAction**

package org.crazyit.hrsystem.action;
    
    
    import javax.servlet.http.HttpServletRequest;
    import javax.servlet.http.HttpServletResponse;
    import javax.servlet.http.HttpSession;
    
    
    import com.opensymphony.xwork2.*;
    import org.apache.struts2.interceptor.*;
    
    
    import org.crazyit.hrsystem.exception.HrException;
    import org.crazyit.hrsystem.domain.*;
    import org.crazyit.hrsystem.action.base.MgrBaseAction;
    
    
    public class AddEmpAction extends MgrBaseAction
    {
        // 代表新增员工的成员变量
        private Employee emp;
    
    
        // emp的setter和getter方法
        public void setEmp(Employee emp)
        {
            this.emp = emp;
        }
        public Employee getEmp()
        {
            return this.emp;
        }
    
    
        public String execute()
            throws Exception
        {
            // 创建ActionContext实例
            ActionContext ctx = ActionContext.getContext();
            // 获取HttpSession中的user属性
            String mgrName = (String)ctx.getSession()
                .get(WebConstant.USER);
            // 添加新用户
            mgr.addEmp(emp , mgrName);
            addActionMessage("新增员工成功");
            return SUCCESS;
        }
    }

**五 AppChangeAction**

package org.crazyit.hrsystem.action;
    
    
    import javax.servlet.http.HttpServletRequest;
    import javax.servlet.http.HttpServletResponse;
    import javax.servlet.http.HttpSession;
    
    
    import com.opensymphony.xwork2.*;
    import org.apache.struts2.interceptor.*;
    
    
    import org.crazyit.hrsystem.exception.HrException;
    import org.crazyit.hrsystem.action.base.EmpBaseAction;
    import org.crazyit.hrsystem.vo.*;
    
    
    import java.util.*;
    import java.text.SimpleDateFormat;
    
    
    public class AppChangeAction extends EmpBaseAction
    {
        // 封装所有异动的列表
        private List types;
        // types的setter和getter方法
        public void setTypes(List types)
        {
            this.types = types;
        }
        public List getTypes()
        {
            return this.types;
        }
        // 处理用户请求
        public String execute()
            throws Exception
        {
            setTypes(mgr.getAllType());
            return SUCCESS;
        }
    }