接下来写了关于修改、删除、查询的jsp
<%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%> <!DOCTYPE html> <html> <head> <meta charset="UTF-8"> <title>Insert title here</title> </head> <body> <% Object message = request.getAttribute("message"); if(message!=null && !"".equals(message)){ %> <script type="text/javascript"> alert("<%=request.getAttribute("message")%>"); </script> <%} %> <div align="center"> <h1 style="color: black;">信息删除</h1> <a href="index.jsp">返回主页</a> <form action="CourseServlet?method=getcoursebyname" method="post" onsubmit="return check()"> <div class="a"> 备注<input type="text" id="name" name="name"/> </div> <div class="a"> <button type="submit" class="b">查 找</button> </div> </form> </div> <script type="text/javascript"> function check() { var name = document.getElementById("name");; //非空 if(name.value == '') { alert('备注名称为空'); name.focus(); return false; } } </script> </body> </html>
<%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%> <%@taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c"%> <!DOCTYPE html> <html> <head> <meta charset="UTF-8"> <title>Insert title here</title> </head> <body> <% Object message = request.getAttribute("message"); if(message!=null && !"".equals(message)){ %> <script type="text/javascript"> alert("<%=request.getAttribute("message")%>"); </script> <%} %> <div align="center"> <h1 style="color: black;">商品信息列表</h1> <a href="index.jsp">返回主页</a> <table class="tb"> <tr> <td>id</td> <td>备注</td> <td>分类</td> <td>金额</td> <td>日期</td> <td align="center" colspan="2">操作</td> </tr> <c:forEach items="${courses}" var="item"> <tr> <td>${item.id}</td> <td>${item.name}</td> <td>${item.fenlei}</td> <td>${item.money}</td> <td>${item.time}</td> <td><a href="CourseServlet?method=getcoursebyid&id=${item.id}">修改</a></td> </tr> </c:forEach> </table> </div> </body> </html>
<%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%> <!DOCTYPE html> <html> <head> <meta charset="UTF-8"> <title>Insert title here</title> </head> <body> <div align="center"> <h1 style="color: black;">信息查询</h1> <a href="index.jsp">返回主页</a> <form action="CourseServlet?method=search" method="post" onsubmit="return check()"> <div class="a"> 备注<input type="text" id="name" name="name"/> </div> <div class="a"> 分类<input type="text" id="fenlei" name="fenlei" /> </div> <div class="a"> 金额<input type="text" id="money" name="money" /> </div> <div class="a"> 日期<input type="text" id="time" name="time" /> </div> <div class="a"> <button type="submit" class="b">查 询</button> </div> </form> </div> <script type="text/javascript"> function check() { var name = document.getElementById("name");; var fenlei = document.getElementById("fenlei"); var money = document.getElementById("money"); var time = document.getElementById("time"); //非空 if(name.value == '' && fenlei.value == '' && money.value == ''&& time.value == '') { alert('请填写一个条件'); return false; } } </script> </body> </html>