Struts的简单crud

注：entity，dao，util包的可用自己写的。

定义baseAction，存放结果码常量，请求、响应、上下文、公用的传值

package com.zking.four.web;

import javax.servlet.ServletContext;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;

import org.apache.struts2.interceptor.ServletRequestAware;
import org.apache.struts2.interceptor.ServletResponseAware;

/**
 * 每一个开发的子控制器要用的属性都定义在通用的action中。
 * @author Administrator
 *
 */
public class BaseAction implements ServletRequestAware, ServletResponseAware{
	/**
	 * 为了传值使用
	 */
	protected HttpServletResponse response;
	protected HttpServletRequest request;
	protected HttpSession session;
	protected ServletContext application;
	
	/**
	 * 为了配置跳转页面所用
	 */
	protected final static String SUCCESS = "success";
	protected final static String FAIL = "fail";
	protected final static String LIST = "list";
	protected final static String ADD = "add";
	protected final static String EDIT = "edit";
	protected final static String DETAIL = "detail";
	
	/**
	 * 具体传值字段	后端向jsp页面传值所用字段
	 */
	protected Object result;
	protected Object msg;
	protected int code;

	public Object getResult() {
		return result;
	}

	public Object getMsg() {
		return msg;
	}

	public int getCode() {
		return code;
	}

	@Override
	public void setServletResponse(HttpServletResponse arg0) {
		this.response = arg0;
		
	}

	@Override
	public void setServletRequest(HttpServletRequest arg0) {
		this.request = arg0;
		this.session = arg0.getSession();
		this.application = arg0.getServletContext();
	}
	

}

package com.zking.four.web;

import java.sql.SQLException;

import com.zking.four.web.dao.ClazzDAO;
/**
 * 为了加载select框的数据
 * @author Administrator
 *
 */
public class ClazzAction extends BaseAction{
public String execute(){
	try {
		this.result=new ClazzDAO().list();
	} catch (InstantiationException e) {
		// TODO Auto-generated catch block
		e.printStackTrace();
	} catch (IllegalAccessException e) {
		// TODO Auto-generated catch block
		e.printStackTrace();
	} catch (SQLException e) {
		// TODO Auto-generated catch block
		e.printStackTrace();
	}
	return null;
	
}
}

配置(Struts-sy.xml):

	<action name="clzAction" class="com.zking.four.web.ClazzAction">
		 </action>
		  <action name="studentAction_*" class="com.zking.four.web.StudentAction" method="{1}">
		  <result name="list">/jsp/listStudent.jsp</result>
		  <result name="add">/jsp/addStudent.jsp</result>
		  <result name="edit">/jsp/editStudent.jsp</result>
		  <result name="success" type="redirect">/sy/studentAction_list.action</result>
		 </action>

web.xml:

<filter-mapping>
<filter-name>struts</filter-name>
<!--在实际开发中，是*.action 只过滤action结尾的请求  -->
<url-pattern>*.action</url-pattern>
</filter-mapping>

主页面：

<%@ page language="java" contentType="text/html; charset=UTF-8"
    pageEncoding="UTF-8"%>
    <%@taglib uri="/struts-tags" prefix="s" %>
    <%@ taglib uri="/zking" prefix="z"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>Insert title here</title>
</head>
<body>
	<h1>list</h1>
	<s:action name="clzAction" namespace="/sy" var="clzList"></s:action>
	<s:form namespace="/sy" action="studentAction_list">
	<s:textfield label="姓名" name="sname"/>
	<s:select label="班级" name="cid" headerKey="" headerValue="====请选择====" list="#clzList.result" listKey="cid" listValue="cname"></s:select>
	<s:submit value="ok"/>
	</s:form>
	<s:url namespace="/sy" action="studentAction_toAdd" var="toAddUrl"/>
	<s:a href="%{#toAddUrl}">新增</s:a>
	<table border="1" width="100%">
		<tr>
			<td>序号</td>
			<td>学号</td>
			<td>姓名</td>
			<td>拼音</td>
			<td>性别</td>
			<td>标记</td>
			<td>班级</td>
			<td>操作</td>
		</tr>
		<s:iterator var="s" value="result">
		<tr>
			<td>序号</td>
			<td><s:property value="#s.sid"/></td>
			<td><s:property value="#s.sname"/></td>
			<td><s:property value="#s.spin"/></td>
			<td><s:property value="#s.sex"/></td>
			<td><s:property value="#s.mark"/></td>
			<td><s:property value="#s.cname"/></td>
			<td>
				<s:url namespace="/sy" action="studentAction_toEdit" var="toEditUrl">
					<s:param name="sid" value="#s.sid"/>
				</s:url>
				<s:url namespace="/sy" action="studentAction_delete" var="toDelUrl">
					<s:param name="sid" value="#s.sid"/>
				</s:url>
				<s:a href="%{#toEditUrl}">修改</s:a>
				<s:a href="%{#toDelUrl}">删除</s:a>
			</td>
		</tr>
		</s:iterator>
	</table>
	<z:page pageBean="${pageBean }"/>
</body>
</html>

增加界面:

<%@ page language="java" contentType="text/html; charset=UTF-8"
	pageEncoding="UTF-8"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<%@ include file="/jsp/common/head.jsp" %>
</head>
<body>
	<h1>add</h1>
	<s:action name="clzAction" namespace="/sy" var="clzList"></s:action> 
	<s:form namespace="/sy" action="studentAction_add">
		<%-- <s:hidden name="sid" value="5"/> --%>
		 <s:textfield label="学号" name="sid" />
		<s:textfield label="姓名" name="sname" />
		<s:radio label="性别" name="sex" list="{'男','女'}"/>
		<s:select label="班级" name="cid" headerKey="" headerValue="====请选择====" list="#clzList.result" listKey="cid" listValue="cname"></s:select>
		<s:textarea label="备注" name="mark"></s:textarea>
		<s:submit value="确定"/>
	</s:form>
</body>
</html>

修改界面:

<%@ page language="java" contentType="text/html; charset=UTF-8"
	pageEncoding="UTF-8"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<%@ include file="/jsp/common/head.jsp" %>
</head>
<body>
	<h1>update</h1>
	<s:action name="clzAction" namespace="/sy" var="clzList"></s:action> 
	<s:push value="result">
	<s:form namespace="/sy" action="studentAction_edit"  ><!-- theme="simple" 改样式 -->
		<%-- <s:hidden name="sid" value="5"/> --%>
		 <s:textfield label="学号" name="sid" />
		<s:textfield label="姓名" name="sname" />
		<s:radio label="性别" name="sex" list="{'男','女'}"/>
		<s:select label="班级" name="cid" headerKey="" headerValue="====请选择====" list="#clzList.result" listKey="cid" listValue="cname"></s:select>
		<s:textarea label="备注" name="mark"></s:textarea>
		<s:submit value="确定"/>
	</s:form>
	</s:push>
</body>
</html>

studentAction(逻辑类):

package com.zking.four.web;

import java.sql.SQLException;

import com.opensymphony.xwork2.ModelDriven;
import com.zking.four.web.dao.StudentDAO;
import com.zking.four.web.entity.Student;
import com.zking.four.web.util.PageBean;

public class StudentAction extends BaseAction implements ModelDriven<Student>{

Student student=new  Student();
StudentDAO studentDao=new StudentDAO();
 PageBean pageBean=new PageBean();



public PageBean getPageBean() {
	return pageBean;
}

public void setPageBean(PageBean pageBean) {
	this.pageBean = pageBean;
}

public String list(){
this.pageBean.setRequest(request);
try {
	this.result=this.studentDao.list(student, pageBean);
	request.setAttribute("pageBean", pageBean);
} catch (InstantiationException e) {
	// TODO Auto-generated catch block
	e.printStackTrace();
} catch (IllegalAccessException e) {
	// TODO Auto-generated catch block
	e.printStackTrace();
} catch (SQLException e) {
	// TODO Auto-generated catch block
	e.printStackTrace();
}
	return LIST;
	
}

public String add(){
	try {
		this.studentDao.add(student);
	//	this.msg ="添加成功";//展示，添加成功之后会提示。
	} catch (InstantiationException e) {
		// TODO Auto-generated catch block
		e.printStackTrace();
	} catch (IllegalAccessException e) {
		// TODO Auto-generated catch block
		e.printStackTrace();
	} catch (NoSuchFieldException e) {
		// TODO Auto-generated catch block
		e.printStackTrace();
	} catch (SecurityException e) {
		// TODO Auto-generated catch block
		e.printStackTrace();
	} catch (SQLException e) {
		// TODO Auto-generated catch block
		e.printStackTrace();
	}
	return SUCCESS;
}

public String toAdd(){
	return ADD;
}

public String edit(){
	try {
		this.studentDao.edit(student);
	} catch (InstantiationException e) {
		// TODO Auto-generated catch block
		e.printStackTrace();
	} catch (IllegalAccessException e) {
		// TODO Auto-generated catch block
		e.printStackTrace();
	} catch (NoSuchFieldException e) {
		// TODO Auto-generated catch block
		e.printStackTrace();
	} catch (SecurityException e) {
		// TODO Auto-generated catch block
		e.printStackTrace();
	} catch (SQLException e) {
		// TODO Auto-generated catch block
		e.printStackTrace();
	}
	return SUCCESS;
}

public String toEdit(){
	try {
		this.result=this.studentDao.load(student);
	} catch (InstantiationException e) {
		// TODO Auto-generated catch block
		e.printStackTrace();
	} catch (IllegalAccessException e) {
		// TODO Auto-generated catch block
		e.printStackTrace();
	} catch (SQLException e) {
		// TODO Auto-generated catch block
		e.printStackTrace();
	}
	return EDIT;
}

public String delete(){
	try {
		this.studentDao.del(student);
	} catch (InstantiationException e) {
		// TODO Auto-generated catch block
		e.printStackTrace();
	} catch (IllegalAccessException e) {
		// TODO Auto-generated catch block
		e.printStackTrace();
	} catch (NoSuchFieldException e) {
		// TODO Auto-generated catch block
		e.printStackTrace();
	} catch (SecurityException e) {
		// TODO Auto-generated catch block
		e.printStackTrace();
	} catch (SQLException e) {
		// TODO Auto-generated catch block
		e.printStackTrace();
	}
	return SUCCESS;
}

@Override
public Student getModel() {
	// TODO Auto-generated method stub
	return student;
}

}

界面展示:
在这里插入图片描述

注：
1、不直接跳页面，跳子控制器，因为路径问题和*。action配置
2、修改页面弹栈的问题，load出的结果作为根，属性可以直接取值
3、页面样式问题 theme
4、pageBean 是我所写的分页。

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