刪除多條數據-解決方案

Struts1.2 全選、多選，一次性刪除多條數據

1、JSP

JavaScript控制全選，

form裏面 checkbox帶上刪除項目的ID：<html:checkbox property="deleteId" value="${u.photoId}" />

codes：

<%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%> <%@ taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c"%> <%@ taglib prefix="fmt" uri="http://java.sun.com/jsp/jstl/fmt"%> <%@ taglib uri="http://struts.apache.org/tags-bean" prefix="bean"%> <%@ taglib uri="http://struts.apache.org/tags-html" prefix="html"%> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <title>圖片管理</title> <mce:script type="text/javascript"> function del() { if (confirm("您確定要刪除嗎")) { document.forms[0].submit(); } else { return false; } }  function selectChange() { var chkSelectAll = document.getElementById("chkSelectAll"); var checked = chkSelectAll.getAttribute("checked"); if (checked) { selectAllItem(); } else { unSelectAll(); } } //選擇全部商品 function selectAllItem() { var items = document.getElementsByName("deleteId"); for ( var i = 0; i < items.length; i++) { items[i].checked = true; } } //取消全選 function unSelectAll() { var items = document.getElementsByName("deleteId"); for ( var i = 0; i < items.length; i++) { items[i].checked = false; } } // --></mce:script> </head> <body> <h1><a href="system/photo/addPhoto.jsp" mce_href="system/photo/addPhoto.jsp">添加圖片</a></h1> <h1><a href="photo.do?method=staticize" mce_href="photo.do?method=staticize">圖片靜態化</a></h1> <h1><a href="${username }/phooto/index.html" mce_href="${username }/phooto/index.html">欣賞圖片</a></h1> <input type="checkbox" name="chkSelectAll" id="chkSelectAll" onclick="selectChange();"/>全選 <input type="button" onclick="return del();" value="刪除"/> <html:form action="/photo.do?method=delete"> <table> <tr> <c:forEach items="${photoList}" var="u" varStatus="vs"> <td> <table> <tr> <td><a href="/MySite${u.photoLocation}" mce_href="MySite${u.photoLocation}"><img src="/MySite${u.photoLocation}" mce_src="MySite${u.photoLocation}" width="125" height="100"/></td> </tr> <tr> <td><html:checkbox property="deleteId" value="${u.photoId}" />${u.title}</td> </tr> </table> </td> <c:if test="${vs.count%4==0}"> </tr> <tr> </c:if> </c:forEach> </tr> </table> </html:form> </body> </html>

2、在Form類中，添加屬性

codes：

/* 對多條進行刪除操作 */ private Integer[] deleteId; public Integer[] getDeleteId() { return deleteId; } public void setDeleteId(Integer[] deleteId) { this.deleteId = deleteId; }

3、在Action中，獲取需要參數項目的ID數組，逐一刪除

codes：

// 刪除多條照片 public ActionForward delete(ActionMapping mapping, ActionForm form, HttpServletRequest request, HttpServletResponse response) { PhotoForm puniForm = (PhotoForm) form; Integer[] deleteId=puniForm.getDeleteId(); if(deleteId==null) return mapping.findForward("showAll"); Photo u; PhotoDAO dao=new PhotoDAO(); for(int id:deleteId) { u=dao.findById(id); dao.delete(u); } // 更新靜態界面 String user_id=(String)request.getSession().getAttribute("user_id"); String username=(String)request.getSession().getAttribute("username"); String location=servlet.getServletContext().getRealPath(""); staticize.IndexGenForVideo.refreshIndex(location,"/"+username, user_id); return mapping.findForward("showAll"); }

刪除多條數據-解決方案

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