• JavaWeb——升级赛-学生成绩管理系统（1）jsp---19.01.03

    add.jsp

    <%@ page language="java" contentType="text/html; charset=UTF-8"
        pageEncoding="UTF-8"%>
    <!DOCTYPE html>
    <html>
    <head>
    <meta charset="UTF-8">
    <title>添加信息</title>
    <style>
     .a{
      margin-top: 20px;
     }
     .b{
      font-size: 20px;
       160px;
      color: white;
      background-color: greenyellow;
     }
    </style>
    </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: blue;">添加信息</h1>
      <a href="index.jsp">返回主页</a>
      <form action="servlet method=add" method="post" onsubmit="return check()">
       <div class="a">
        姓名<input type="text" id="name" name="name"/>
       </div>
       <div class="a">
        分数<input type="text" id="grade" name="grade" />
       </div>
      </form>
     </div>
     <script type="text/javascript">
      function check()
      {
       var name = document.getElementById("name");;
       var grade = document.getElementById("grade");
       
       //判断是否空
       if(name.value == '')
       {
        alert('名字为空');
        name.focus();
        return false;
       }
       
       if(grade.value == '')
       {
        alert('分数为空');
        place.focus();
        return false;
       }
      }
      
     </script>
    </body>
    </html>
     
    del.jsp
     
    <%@ page language="java" contentType="text/html; charset=UTF-8"
        pageEncoding="UTF-8"%>
    <!DOCTYPE html>
    <html>
    <head>
    <meta charset="UTF-8">
    <title>删除</title>
    <style>
     .a{
      margin-top: 20px;
     }
     .b{
      font-size: 20px;
       160px;
      color: white;
      background-color: greenyellow;
     }
    </style>
    </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: blue;">信息删除</h1>
      <a href="index.jsp">返回主页</a>
      <form action="servlet?method=getcoursebyname" method="post" onsubmit="return check()">
       <div class="a">
        姓名<input type="text" id="name" name="name"/>
       </div>
       <div class="a">
        <button type="submit" class="b">查&nbsp;&nbsp;&nbsp;找</button>
       </div>
      </form>
     </div>
     <script type="text/javascript">
      function check()
      {
       var name = document.getElementById("name");
       
       //非空
       if(name.value == '')
       {
        alert('姓名为空');
        name.focus();
        return false;
       }
      }
     </script>
    </body>
    </html>
     
    detail.jsp
     
    <%@ page language="java" contentType="text/html; charset=UTF-8"
        pageEncoding="UTF-8"%>
    <!DOCTYPE html>
    <html>
    <head>
    <meta charset="UTF-8">
    <title>按ID查询</title>
    <style>
     .a{
      margin-top: 20px;
     }
     .b{
      font-size: 20px;
       160px;
      color: white;
      background-color: greenyellow;
     }
     .tb, td {
      border: 1px solid black;
      font-size: 22px;
     }
    </style>
    </head>
    <body>
     <div align="center">
      <h1 style="color: blue;">信息删除</h1>
      <a href="index.jsp">返回主页</a>
      <table class="tb">
       <tr>
        <td>姓名</td>
        <td>${course.name}</td>
       </tr>
       <tr>
        <td>分数</td>
        <td>${course.grade}</td>
       </tr>
      </table>
      <div class="a">
       <a onclick="return check()" href="servlet?method=del&id=${course.id}">删&nbsp;&nbsp;&nbsp;除</a>
      </div>
     </div>
     <script type="text/javascript">
      function check() {
       if (confirm("真的要删除吗？"))
       {
        return true;
       }
       else
       {
        return false;
       }
      }
     </script>
    </body>
    </html>
     
    detail2.jsp
     
    <%@ page language="java" contentType="text/html; charset=UTF-8"
        pageEncoding="UTF-8"%>
    <!DOCTYPE html>
    <html>
    <head>
    <meta charset="UTF-8">
    <title>按名字查询</title>
    <style>
     .a{
      margin-top: 20px;
     }
     .b{
      font-size: 20px;
       160px;
      color: white;
      background-color: greenyellow;
     }
    </style>
    </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: red;">物资信息修改</h1>
      <a href="index.jsp">返回主页</a>
      <form action="CourseServlet?method=update" method="post" onsubmit="return check()">
       <div class="a">
        姓名<input type="text" id="name" name="name" value="${course.name}"/>
       </div>
       <div class="a">
        分数<input type="text" id="grade" name="grade" value="${course.grade}"/>
       </div>
       <input type="hidden" id="id" name="id" value="${course.id}"/>
       <div class="a">
        <button type="submit" class="b">修&nbsp;&nbsp;&nbsp;改</button>
       </div>
      </form>
     </div>
     <script type="text/javascript">
      function check()
      {
       var name = document.getElementById("name");;
       var grade = document.getElementById("grade");
       
       //非空
       if(name.value == '')
       {
        alert('姓名为空');
        name.focus();
        return false;
       }
       
       if(grade.value == '')
       {
        alert('分数为空');
        place.focus();
        return false;
       }
       
      }
     </script>
    </body>
    </html>
     
    index.jsp
     
    <%@ page language="java" contentType="text/html; charset=UTF-8"
        pageEncoding="UTF-8"%>
    <!DOCTYPE html>
    <html>
    <head>
    <meta charset="UTF-8">
    <title>首页</title>
    <style>
     .a{
      font-size: 26px;
      margin-top: 20px;
     }
    </style>
    </head>
    <body>
     <div align="center">
      <h1 style="color: blue;">查分系统</h1>
      <div class="a">
       <a href="add.jsp">添加信息</a>
      </div>
      <div class="a">
       <a href="servlet?method=list">信息修改</a>
      </div>
      <div class="a">
       <a href="del.jsp">信息删除</a>
      </div>
      <div class="a">
       <a href="search.jsp">信息搜索</a>
      </div>
     </div>
    </body>
    </html>
     
    list.jsp
     
    <%@ 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>遍历</title>
    <style>
     .a{
      margin-top: 20px;
     }
     .b{
      font-size: 20px;
       160px;
      color: white;
      background-color: greenyellow;
     }
     .tb, td {
      border: 1px solid black;
      font-size: 22px;
     }
    </style>
    </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: red;">信息列表</h1>
      <a href="index.jsp">返回主页</a>
      <table class="tb">
       <tr>
        <td>id</td>
        <td>姓名</td>
        <td>分数</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.grade}</td>
         <td><a href="servlet?method=getCourseById&id=${item.id}">修改</a></td>
        </tr>
       </c:forEach>
      </table>
     </div>
    </body>
    </html>
     
    search.jsp
     
    <%@ page language="java" contentType="text/html; charset=UTF-8"
        pageEncoding="UTF-8"%>
    <!DOCTYPE html>
    <html>
    <head>
    <meta charset="UTF-8">
    <title>搜索</title>
    <style>
     .a{
      margin-top: 20px;
     }
     .b{
      font-size: 20px;
       160px;
      color: white;
      background-color: greenyellow;
     }
    </style>
    </head>
    <body>
     <div align="center">
      <h1 style="color: blue;">物资信息查询</h1>
      <a href="index.jsp">返回主页</a>
      <form action="servlet?method=search" method="post" onsubmit="return check()">
       <div class="a">
        姓名<input type="text" id="name" name="name"/>
       </div>
       <div class="a">
        分数<input type="text" id="grade" name="grade" />
       </div>
       <div class="a">
        <button type="submit" class="b">查&nbsp;&nbsp;&nbsp;询</button>
       </div>
      </form>
     </div>
     <script type="text/javascript">
      function check()
      {
       var name = document.getElementById("name");;
       var grade = document.getElementById("grade");
       
       //非空
       if(name.value == '' && grade.value == '' )
       {
        alert('请填写一个条件');
        return false;
       }
      }
     </script>
    </body>
    </html>
     
    searchlist.jsp
     
    <%@ 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>
    <style>
     .a{
      margin-top: 20px;
     }
     .b{
      font-size: 20px;
       160px;
      color: white;
      background-color: greenyellow;
     }
     .tb, td {
      border: 1px solid black;
      font-size: 22px;
     }
    </style>
    </head>
    <body>
     <div align="center">
      <h1 style="color: red;">信息列表</h1>
      <a href="index.jsp">返回主页</a>
      <table class="tb">
       <tr>
        <td>id</td>
        <td>姓名</td>
        <td>分数</td>
       </tr>
       <!-- forEach遍历出adminBeans -->
       <c:forEach items="${courses}" var="item" varStatus="status">
        <tr>
         <td>${item.id}</td>
         <td><a>${item.name}</a></td>
         <td>${item.grade}</td>
        </tr>
       </c:forEach>
      </table>
     </div>
    </body>
    </html>
     
    jsp部分
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  • 原文地址：https://www.cnblogs.com/mitang0-0/p/10308398.html
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