java web知识点复习,重新编写学生选课系统的先关操作。

为了复习之前学习的相关的html,javaweb等知识。自己有重新编写了一遍学生选课系统。

下面主要展示登录界面的代码,以及各个大的主页面的相关jsp。

<%@ page language="java" contentType="text/html; charset=utf-8"
    pageEncoding="utf-8"%>
<!DOCTYPE html>
<html>
<head>
<meta name="viewport" content="width=device-width, initial-scale=1">
 <link rel="stylesheet" href="https://cdn.staticfile.org/twitter-bootstrap/4.3.1/css/bootstrap.min.css">
 <script src="https://cdn.staticfile.org/jquery/3.2.1/jquery.min.js"></script>
 <script src="https://cdn.staticfile.org/popper.js/1.15.0/umd/popper.min.js"></script>
 <script src="https://cdn.staticfile.org/twitter-bootstrap/4.3.1/js/bootstrap.min.js"></script>
<title>登录</title>
<style type="text/css">
*{
padding:0px;
margin:0px;
}
.header{
100%;
height:120px;
background-color:#D2E9FF;
text-align:center;
}
.container{
100%;
height:552px;
position:relative;
background-color:#A6FFFF;
}
.login{
500px;
height:auto;
background-color:white;
position:absolute;
top:50px;
left:320px;
border-radius:8px;
}
label{
float:left;
100px;
margin-top:7px;
margin-right:5px;
}
.form-control{
60%;
}
.logtip{
padding-top:20px;
padding-bottom:20px;
border-bottom:2px solid red;
text-align:center;
}
.form-group{
margin-left:33px;
margin-top:33px;
}
.btn{
height:50px;
100px;
float:left;
border-radius:10px;
}
.logbtn{
margin-right:20px;
}

.btnbag{
margin-left:140px;
margin-right:140px;
height:50px;
overflow:hidden;
margin-top:30px;
margin-bottom:40px;
}
</style>
</head>
<body>
    <div class="header"><h2>学生选课系统</h2></div>
    
    <div class="container">
        <div class="login">
        
            <h2 class="logtip">登录</h2>
            <form action="login_do" method="post">
                <div class="form-group">
                
                    <label for="username">用户名</label>
                    <input type="text" class="form-control" id="username" name="username">
                </div>
                <div class="form-group">
                
                    <label for="password">密码</label>
                    <input type="password" class="form-control" id="password" name="password">
                </div>
            <div class="form-group">
                    <label for="name">类型</label>
                    <select name="leibie" id="leibie" required="required" class="form-control" >   
                          <option value="管理员">管理员</option>   
                          <option value="学生">学生</option>   
                          <option value="老师">老师</option>       
                      </select>
                </div>
                <div class="btnbag">
                    <input type="button" class="btn btn-primary logbtn" onclick="login()" value="登录">
                    <input type="button" class="btn btn-primary mangbtn" onclick="entermang()" value="进入管理">
                </div>
            </form>
        </div>
    </div>
    
    <div class="footer"></div>
</body>
<script>
    function login()
    {
        var username=$("#username").val();
        var password=$("#password").val();
        var leibie=$("#leibie").val();
        if(username==""||password=="")
            alert("请将信息填写完整!");
        else
        {
            $.post(
                "registecheck",
                {"name":username,
                    "password":password,
                    "role":leibie},
                function(data){
                        if(data=="yes")
                        {
                            if(leibie=="学生")
                                {
                                alert("学生身份验证成功登陆!");
                                window.location="TheWord1.jsp?value="+username;
                                }
                            else if(leibie=="老师")
                                {
                                alert("老师身份验证成功登陆!");
                                window.location="TheWord2.jsp?value="+username;
                                }
                            else
                                {
                                  alert("管理员登录,请点击进入管理按钮");
                                }
                        }
                        else
                        alert("用户名或密码错误,登录失败!");
                },
                "text"
            );
        }
    }
    function entermang()
    {
        var username=$("#username").val();
        var password=$("#password").val();
        var leibie=$("#leibie").val();
        if(username==""||password=="")
            alert("请将信息填写完整!");
        else
        {
            $.post(
                "registecheck",
                {"name":username,
                    "password":password,
                    "number":leibie},
                function(data){
                        if(data=="yes")
                        {
                            
                            if(leibie=="管理员")
                                {
                                alert("管理员进入管理成功!");
                                window.location="TheWord3.jsp?value="+username;
                                }
                        }
                        else
                        alert("用户名或密码错误!");
                },
                "text"
            );
        }
    }
</script>
</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>
<script>

 function onload()
{
    <%
    String value="";
    value=request.getParameter("value");    
    %>
    $("#informationshow").text("当前登录账户:<%=value %>");
}
function exitlog(event)
{
    var msg = "您确定要注销吗?"; 
    if (confirm(msg)==true){ 
        event.href="index.jsp";
    }
    else{
        alert("操作取消!");
    }
}
</script>
</head>
<body onload="onload()">
    <div class="header">
        <h2>欢迎来到学生选课系统</h2>
        <div class="loginfoshow" id="userinfor">
            <p id="informationshow"></p>
            &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
            <a href="" onclick="exitlog(this)">[注销]</a>
        </div>
    </div>
    <div class="contain">
        <div class="list-group">
            
            <a id="1" href="lookmessage?name=<%=value %>" class="list-group-item list-group-item-aciton" target="operation">查看个人信息</a>
            <a id="2" href="updatamessage?name=<%=value %>" class="list-group-item list-group-item-aciton" target="operation">修改基本信息</a>    
            <a id="3" href="changepassword.jsp?name=<%=value %>" class="list-group-item list-group-item-aciton" target="operation">修改密码</a>
            
            <a id="4" href="choiceclass?name=<%=value %>" class="list-group-item list-group-item-aciton" target="operation">进行选课</a>
            <a id="5" href="lookclass?name=<%=value %>" class="list-group-item list-group-item-aciton" target="operation">查看已选课程</a>
            
            
        </div>
        <div class="operation">
            <iframe name="operation" src="" width="100%" height="100%" style="background-color: gray;"></iframe>
        </div>
    </div>
    <div class="footer"></div>
</body>
</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>
<script>

 function onload()
{
    <%
    String value="";
    value=request.getParameter("value");    
    %>
    $("#informationshow").text("当前登录账户:<%=value %>");
}
function exitlog(event)
{
    var msg = "您确定要注销吗?"; 
    if (confirm(msg)==true){ 
        event.href="index.jsp";
    }
    else{
        alert("操作取消!");
    }
}
</script>
</head>
<body onload="onload()">
    <div class="header">
        <h2>欢迎来到老师课程系统</h2>
        <div class="loginfoshow" id="userinfor">
            <p id="informationshow"></p>
            &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
            <a href="" onclick="exitlog(this)">[注销]</a>
        </div>
    </div>
    <div class="contain">
        <div class="list-group">
            
            <a id="1" href="lookmessage?name=<%=value %>" class="list-group-item list-group-item-aciton" target="operation">查看个人信息</a>
            <a id="2" href="updatamessage?name=<%=value %>" class="list-group-item list-group-item-aciton" target="operation">修改基本信息</a>    
            <a id="3" href="changepassword.jsp?name=<%=value %>" class="list-group-item list-group-item-aciton" target="operation">修改密码</a>
            
            <a id="4" href="lookclassall?name=<%=value %>" class="list-group-item list-group-item-aciton" target="operation">查看本人课程</a>
            <a id="5" href="lookclassseach?name=<%=value %>" class="list-group-item list-group-item-aciton" target="operation">课程操作</a>
            <a id="6" href="addclass.jsp?name=<%=value %>" class="list-group-item list-group-item-aciton" target="operation">增加新的课程</a>
            
        </div>
        <div class="operation">
            <iframe name="operation" src="" width="100%" height="100%" style="background-color: gray;"></iframe>
        </div>
    </div>
    <div class="footer"></div>
</body>
</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>
<script>

 function onload()
{
    <%
    String value="";
    value=request.getParameter("value");    
    %>
    $("#informationshow").text("当前登录账户:<%=value %>");
}
function exitlog(event)
{
    var msg = "您确定要注销吗?"; 
    if (confirm(msg)==true){ 
        event.href="index.jsp";
    }
    else{
        alert("操作取消!");
    }
}
</script>
</head>
<body onload="onload()">
    <div class="header">
        <h2>欢迎来到老师课程系统</h2>
        <div class="loginfoshow" id="userinfor">
            <p id="informationshow"></p>
            &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
            <a href="" onclick="exitlog(this)">[注销]</a>
        </div>
    </div>
    <div class="contain">
        <div class="list-group">
            
            <a id="1" href="lookmessage?name=<%=value %>" class="list-group-item list-group-item-aciton" target="operation">查看个人信息</a>
            <a id="2" href="updatamessage?name=<%=value %>" class="list-group-item list-group-item-aciton" target="operation">修改基本信息</a>    
            <a id="3" href="changepassword.jsp?name=<%=value %>" class="list-group-item list-group-item-aciton" target="operation">修改密码</a>
            
            <a id="4" href="addnewuser.jsp?name=<%=value %>" class="list-group-item list-group-item-aciton" target="operation">增加用户</a>
            <a id="5" href="updatausermessage?name=<%=value %>" class="list-group-item list-group-item-aciton" target="operation">修改用户信息</a>    
            
            
            
            
            
        </div>
        <div class="operation">
            <iframe name="operation" src="" width="100%" height="100%" style="background-color: gray;"></iframe>
        </div>
    </div>
    <div class="footer"></div>
</body>
</body>
</html>

其中的登录界面的截图如下:

原文地址:https://www.cnblogs.com/dazhi151/p/12322220.html