<%@ page contentType="text/html; charset=UTF-8" pageEncoding="UTF-8" %>
<html>
<head>
<title>JSP - Hello World</title>
</head>
<div style="text-align: center">
<h1> 登录界面</h1><br>
<form method="post" id="login" action="login-servlet">
用户身份:<select name="role" id="cars">
<option value="school">研究生院校</option>
<option value="stu" selected>学生</option>
<option value="teacher">老师</option>
</select><br>
账号:<input type="text" name="id" id="nameid"><br><br>
密码:<input type="password" name="pwd" id="pwd"><br><br>
<span id="msg" style="font-size: 12px;color:red">${msg}</span><br>
<button type="button" id="btm">登录</button> 
<br>
</form>
<script>
document.getElementById("btm").addEventListener("click", function(){
var id=document.getElementById("nameid").value;
var pwd=document.getElementById("pwd").value;
if(!is(id))
{
document.getElementById('msg').innerHTML="您的账号不能为空";
return;
}
if(!is(pwd))
{
document.getElementById('msg').innerHTML="您的密码不能为空";
return;
}
document.getElementById('login').submit();
});
function is(s)
{
if (s.length==0||s.trim()=="")
return false;
else return true;
}
</script>
</div>
</body>
</html>
package bean;
public class LiuShui {
private String schoolid;
private String stuid;
private String teaid;
private String is1;
private String is2;
private String name;
public String getZhuanye() {
return zhuanye;
}
public void setZhuanye(String zhuanye) {
this.zhuanye = zhuanye;
}
public String getZongfen() {
return zongfen;
}
public void setZongfen(String zongfen) {
this.zongfen = zongfen;
}
public String getMath() {
return math;
}
public void setMath(String math) {
this.math = math;
}
public String getEnglish() {
return english;
}
public void setEnglish(String english) {
this.english = english;
}
public String getZy() {
return zy;
}
public void setZy(String zy) {
this.zy = zy;
}
private String zhuanye;
private String zongfen;
private String math;
private String english;
private String zhengzhi;
private String zy;
public String getSchoolid() {
return schoolid;
}
public void setSchoolid(String schoolid) {
this.schoolid = schoolid;
}
public String getStuid() {
return stuid;
}
public void setStuid(String stuid) {
this.stuid = stuid;
}
public String getTeaid() {
return teaid;
}
public void setTeaid(String teaid) {
this.teaid = teaid;
}
public String getIs1() {
return is1;
}
public void setIs1(String is1) {
this.is1 = is1;
}
public String getIs2() {
return is2;
}
public void setIs2(String is2) {
this.is2 = is2;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public String getZhengzhi() {
return zhengzhi;
}
public void setZhengzhi(String zhengzhi) {
this.zhengzhi = zhengzhi;
}
}
有关bean
package bean;
public class School {
private String id;
private String plan;
private String rt;
private String password;
private String name;
public String getId() {
return id;
}
public void setId(String id) {
this.id = id;
}
public String getPlan() {
return plan;
}
public void setPlan(String plan) {
this.plan = plan;
}
public String getRt() {
return rt;
}
public void setRt(String rt) {
this.rt = rt;
}
public String getPassword() {
return password;
}
public void setPassword(String password) {
this.password = password;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
}
package bean;
public class Stu {
private String id ;
private String name;
private String zhengzhi;
private String math;
private String english;
private String is1;
private String is2;
private String is3;
private String password;
private String zy;
public String getId() {
return id;
}
public void setId(String id) {
this.id = id;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public String getZhengzhi() {
return zhengzhi;
}
public void setZhengzhi(String zhengzhi) {
this.zhengzhi = zhengzhi;
}
public String getMath() {
return math;
}
public void setMath(String math) {
this.math = math;
}
public String getEnglish() {
return english;
}
public void setEnglish(String english) {
this.english = english;
}
public String getIs1() {
return is1;
}
public void setIs1(String is1) {
this.is1 = is1;
}
public String getIs2() {
return is2;
}
public void setIs2(String is2) {
this.is2 = is2;
}
public String getIs3() {
return is3;
}
public void setIs3(String is3) {
this.is3 = is3;
}
public String getPassword() {
return password;
}
public void setPassword(String password) {
this.password = password;
}
public String getZy() {
return zy;
}
public void setZy(String zy) {
this.zy = zy;
}
}
package bean;
public class Teacher {
private String id;
private String name;
private String password;
private String schoolid;
public String getPassword() {
return password;
}
public void setPassword(String password) {
this.password = password;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public String getId() {
return id;
}
public void setId(String id) {
this.id = id;
}
public String getSchoolid() {
return schoolid;
}
public void setSchoolid(String schoolid) {
this.schoolid = schoolid;
}
}
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