struts值crud 增刪查改
阿新 • • 發佈：2018-10-31
、定義baseAction，存放結果碼常量，請求、響應、上下文、公用的傳值
2、Struts標籤的使用
s:iterator
S:action
S:url
S:form
s:textfield
S:select
S:radio
S:param
s:textarea
1、不直接跳頁面，跳子控制器，因為路徑問題和*。action配置
2、修改頁面彈棧的問題，load出的結果作為跟，屬性可以直接取值
3、頁面樣式問題 theme
共享介面
<%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%> <!DOCTYPE html > <%@ taglib uri="/struts-tags" prefix="s"%> <%@ taglib uri="/zking" prefix="z"%>
struts-sy配置
<?xml version="1.0" encoding="UTF-8"?> <!DOCTYPE struts PUBLIC "-//Apache Software Foundation//DTD Struts Configuration 2.5//EN" "http://struts.apache.org/dtds/struts-2.5.dtd"> <struts> <!-- namespace:在記憶體中劃分具體的控制元件 name:給package包取個名字 可以繼承 --> <package name="sy" extends="base" namespace="/sy"> <action name="clazzAction" 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> </package> </struts>
助手BaseAction
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; /** * 每一個開發的子控制器要用的屬性都定義在通用的action中。 * @author Administrator * */ public class BaseAction implements ServletRequestAware, ServletResponseAware{ /** * 為了傳值使用 */ protected HttpServletResponse response; protected HttpServletRequest request; protected HttpSession session; protected ServletContext application; /** * 為了配置跳轉頁面所用 */ 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"; /** * 具體傳值欄位 後端向jsp頁面傳值所用欄位 */ 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(); } }
StudentAction
package com.zking.four.web;
import java.sql.SQLException;
import com.opensymphony.xwork2.ModelDriven;
import com.zking.test.dao.StudentDAO;
import com.zking.test.entity.Student;
import com.zking.test.util.PageBean;
public class StudentAction extends BaseAction implements ModelDriven<Student>{
private Student student=new Student();
private StudentDAO studnetDAO=new StudentDAO();
private PageBean pageBean=new PageBean();
public String list() {
try {
this.result=studnetDAO.list(student,pageBean);
} catch (InstantiationException | IllegalAccessException | SQLException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
return LIST;
}
public String add() {
try {
this.studnetDAO.add(student);
// this.msg="ssss";
} catch (InstantiationException | IllegalAccessException | NoSuchFieldException | SecurityException
| SQLException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
return SUCCESS;
}
public String toAdd() {
return ADD;
}
public String edit() {
try {
this.studnetDAO.edit(student);
} catch (InstantiationException | IllegalAccessException | NoSuchFieldException | SecurityException
| SQLException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
return SUCCESS;
}
public String toEdit() {
try {
this.result=this.studnetDAO.load(student);
} catch (InstantiationException | IllegalAccessException | SQLException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
return EDIT;
}
public String delete() {
try {
System.out.println(student.getSid());
this.studnetDAO.del(student);
} catch (InstantiationException | IllegalAccessException | NoSuchFieldException | SecurityException
| SQLException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
return SUCCESS;
}
@Override
public Student getModel() {
// TODO Auto-generated method stub
return student;
}
}
ClazzAction
package com.zking.four.web;
import java.sql.SQLException;
import com.zking.test.dao.ClazzDAO;
/**
* 載入資料
* @author Administrator
*
*/
public class ClazzAction extends BaseAction{
public String execute() {
try {
this.result=new ClazzDAO().list();
} catch (InstantiationException | IllegalAccessException | SQLException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
return null;
}
}
展示
<%@ 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>list</h1>
<s:action name="clazzAction" namespace="/sy" var="clzlist"></s:action>
<s:form namespace="/sy" action="studentAction_list">
<s:textfield label="姓名" name="sname"/>
<s:select label="班級" name="cid" headrKey="" headerValue="===請選擇===" 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:url>
<s:a href="%{#toAddUrl}">新增</s:a>
<table border="1" width="100%">
<tr>
<td>序號</td>
<td>學號</td>
<td>姓名</td>
<td>拼音</td>
<td>性別</td>
<td>標記</td>
<td>班級</td>
<td>操作</td>
</tr>
<s:iterator var="s" value="result">
<tr>
<td>序號</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}">刪除</s:a>
</td>
</tr>
</s:iterator>
</table>
</body>
</html>
增加
<%@ 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="clazzAction" namespace="/sy" var="clzlist"></s:action>
<s:form namespace="/sy" action="studentAction_add">
<%-- <s:hidden name="sid" value="5"/> --%>
<s:textfield label="學號" name="sid" />
<s:textfield label="姓名" name="sname" />
<s:radio label="性別" name="sex" list="{'男','女'}"/>
<s:select label="班級" name="cid" headerKey="" headerValue="===請選擇===" list="#clzlist.result" listKey="cid" listValue="cname" cssStyle="width:160px;" />
<s:textarea label="備註" name="mark"></s:textarea>
<s:submit value="確定"/>
</s:form>
</body>
</html>
修改
<%@ page language="java" contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8"%>
<%@ include file="/jsp/common/head.jsp" %>
<!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>update</h1>
<s:action name="clazzAction" namespace="/sy" var="clzlist"></s:action>
<s:push value="result">
<s:form namespace="/sy" action="studentAction_edit">
<%-- <s:hidden name="sid" value="5"/> --%>
<s:textfield label="學號" name="sid" />
<s:textfield label="姓名" name="sname" />
<s:radio label="性別" name="sex" list="{'男','女'}"/>
<s:select label="班級" name="cid" headerKey="" headerValue="===請選擇===" list="#clzlist.result" listKey="cid" listValue="cname" cssStyle="width:160px;" />
<s:textarea label="備註" name="mark"></s:textarea>
<s:submit value="確定"/>
</s:form>
</s:push>
</body>
</html>