Spring MVC实例（增删改查）

数据库配置文件application-context-jdbc.xml

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:jdbc="http://www.springframework.org/schema/jdbc"
xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd http://www.springframework.org/schema/jdbc http://www.springframework.org/schema/jdbc/spring-jdbc-3.2.xsd ">

<!--配置mysql数据库-->
<bean id="dataSource" class="org.springframework.jdbc.datasource.DriverManagerDataSource">
<property name="driverClassName">
<value>com.mysql.jdbc.Driver</value>
</property>
<property name="url">
<value>jdbc:mysql://localhost:3306/school?useUnicode=true&characterEncoding=UTF-8</value>
</property>
<property name="username">
<value>root</value>
</property>
<property name="password">
<value>root</value>
</property>
</bean>

<!--jdbcTemplate和数据库关联-->
<bean id="jdbcTemplate" class="org.springframework.jdbc.core.JdbcTemplate">
<property name = "dataSource" ref="dataSource"/>
</bean>
</beans>

表teacher的结构（tid自增，tno工号,tname姓名,dno部门号）

tid int auto_increment primary key,tno varchar(20),tname varchar(20),dno varchar(10)

分页类PageResult

package com.zyz.dao.base;

/**
* Created by zyz on 2016-8-11.
*/
import java.io.Serializable;
import java.util.List;

import org.springframework.jdbc.core.JdbcTemplate;

public class PageResult<T> implements Serializable {
public static final int NUMBERS_PER_PAGE = 10;//默认每页10条记录
//每页显示的记录数
private int numPerPage;
//记录总数
private int totalRows;
//总页数
private int totalPages;
//当前页码
private int currentPage;
//起始行数
private int startIndex;
//结束行数
private int lastIndex;
//结果集存放List
private List<T> resultList;
//JdbcTemplate jTemplate
private JdbcTemplate jdbcTemplate;

/**
* 每页显示10条记录的构造函数,使用该函数必须先给Pagination设置currentPage，jTemplate初值
* @param sql oracle语句
*/
public PageResult(String sql){
if(jdbcTemplate == null){
throw new IllegalArgumentException("com.itbegin.dao.base.PageResult.jTemplate is null,please initial it first. ");
}else if(sql.equals("")){
throw new IllegalArgumentException("com.itbegin.dao.base.PageResult.sql is empty,please initial it first. ");
}
new PageResult<T>(sql,currentPage,NUMBERS_PER_PAGE,jdbcTemplate);
}

/**分页构造函数
* @param sql 根据传入的sql语句得到一些基本分页信息
* @param currentPage 当前页
* @param numPerPage 每页记录数
* @param jTemplate JdbcTemplate实例
*/
public PageResult(String sql,int currentPage,int numPerPage,JdbcTemplate jTemplate){
if(jTemplate == null){
throw new IllegalArgumentException("com.deity.ranking.util.Pagination.jTemplate is null,please initial it first. ");
}else if(sql == null || sql.equals("")){
throw new IllegalArgumentException("com.deity.ranking.util.Pagination.sql is empty,please initial it first. ");
}
//设置每页显示记录数
setNumPerPage(numPerPage);
//设置要显示的页数
setCurrentPage(currentPage);
//计算总记录数
StringBuffer totalSQL = new StringBuffer(" SELECT count(*) FROM ( ");
totalSQL.append(sql);
totalSQL.append(" ) totalTable ");
//给JdbcTemplate赋值
this.jdbcTemplate = jTemplate;
//总记录数
setTotalRows(getJdbcTemplate().queryForObject(totalSQL.toString(),Integer.class));
//计算总页数
setTotalPages();
//计算起始行数
setStartIndex();
//计算结束行数
setLastIndex();

//装入结果集
setResultList(getJdbcTemplate().queryForList(getMySQLPageSQL(sql,startIndex,numPerPage)));
}

/**
* 构造MySQL数据分页SQL
* @param queryString
* @param startIndex
* @param pageSize
* @return
*/
public String getMySQLPageSQL(String queryString, Integer startIndex, Integer pageSize)
{
String result = "";
if (null != startIndex && null != pageSize)
{
result = queryString + " limit " + startIndex + "," + pageSize;
} else if (null != startIndex && null == pageSize)
{
result = queryString + " limit " + startIndex;
} else
{
result = queryString;
}
return result;
}

public int getCurrentPage() {
return currentPage;
}

public void setCurrentPage(int currentPage) {
this.currentPage = currentPage;
}

public int getNumPerPage() {
return numPerPage;
}

public void setNumPerPage(int numPerPage) {
this.numPerPage = numPerPage;
}

public List<T> getResultList() {
return resultList;
}

public void setResultList(List resultList) {
this.resultList = resultList;
}

public int getTotalPages() {
return totalPages;
}
//计算总页数
public void setTotalPages() {
if(totalRows % numPerPage == 0){
this.totalPages = totalRows / numPerPage;
}else{
this.totalPages = (totalRows / numPerPage) + 1;
}
}

public int getTotalRows() {
return totalRows;
}

public void setTotalRows(int totalRows) {
this.totalRows = totalRows;
}

public int getStartIndex() {
return startIndex;
}

public void setStartIndex() {
this.startIndex = (currentPage - 1) * numPerPage;
}

public int getLastIndex() {
return lastIndex;
}

public JdbcTemplate getJdbcTemplate() {
return jdbcTemplate;
}

public void setJdbcTemplate(JdbcTemplate jdbcTemplate) {
this.jdbcTemplate = jdbcTemplate;
}

//计算结束时候的索引
public void setLastIndex() {
//System.out.println("totalRows="+totalRows);///////////
//System.out.println("numPerPage="+numPerPage);///////////
if( totalRows < numPerPage){
this.lastIndex = totalRows;
}else if((totalRows % numPerPage == 0) || (totalRows % numPerPage != 0 && currentPage < totalPages)){
this.lastIndex = currentPage * numPerPage;
}else if(totalRows % numPerPage != 0 && currentPage == totalPages){//最后一页
this.lastIndex = totalRows ;
}
}

@Override
public String toString() {
return "totalRows:"+totalRows+" totalPages:"+totalPages+" currentPage:"+currentPage+resultList;
}

}

实体类Model

package com.zyz.model;

/**
* Created by zyz on 2016-8-3.
*/
public class Teacher {
private int tid;
private String tno;
private String tname;
private String dno;

public int getTid() {
return tid;
}

public void setTid(int tid) {
this.tid = tid;
}

public String getTno() {
return tno;
}

public void setTno(String tno) {
this.tno = tno;
}

public String getTname() {
return tname;
}

public void setTname(String tname) {
this.tname = tname;
}

public String getDno() {
return dno;
}

public void setDno(String dno) {
this.dno = dno;
}
}

数据访问层DAO-TeacherDao

package com.zyz.dao;

import com.zyz.dao.base.PageResult;
import com.zyz.model.Teacher;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.jdbc.core.BeanPropertyRowMapper;
import org.springframework.jdbc.core.JdbcTemplate;
import org.springframework.jdbc.core.PreparedStatementSetter;
import org.springframework.stereotype.Repository;

import java.sql.PreparedStatement;
import java.sql.SQLException;
import java.util.ArrayList;
import java.util.List;

/**
* Created by zyz on 2016-8-3.
*/
@Repository
public class TeacherDao {
@Autowired
private JdbcTemplate jdbcTemplate;
public PageResult<Teacher> queryPage(Integer currentPage,Integer numPerPage,Teacher teacher){
StringBuffer sql=new StringBuffer();
sql.append("select tid, tno,tname,dno from teacher where 1=1 ");
if(teacher!=null){
if(teacher.getTname()!=null && !teacher.getTname().equals("")){
sql.append(" and tname like '");
sql.append(teacher.getTname());
sql.append("%' ");
}
if(teacher.getDno()!=null && !teacher.getDno().equals("")){
sql.append(" and dno like '");
sql.append(teacher.getDno());
sql.append("%' ");
}
}
sql.append(" order by tno asc");
PageResult<Teacher> page=new PageResult<Teacher>(sql.toString(),currentPage,numPerPage,this.jdbcTemplate);
return page;
}
public List<Teacher> getTeachers(){
List<Teacher> teachers=new ArrayList<Teacher>();
String sql="select tid, tno,tname,dno from teacher";
teachers=jdbcTemplate.query(sql,new BeanPropertyRowMapper<Teacher>(Teacher.class));
return teachers;
}
public void addTeacher(Teacher teacher){
String sql="insert into teacher(tno,tname,dno) values(?,?,?)";
jdbcTemplate.update(sql, new PreparedStatementSetter() {
@Override
public void setValues(PreparedStatement ps) throws SQLException {
ps.setString(1,teacher.getTno());
ps.setString(2,teacher.getTname());
ps.setString(3,teacher.getDno());
}
});
}

public Teacher getTeacher(int tid){
String sql="select tid,tno,tname,dno from teacher where tid=?";
Teacher teacher=jdbcTemplate.queryForObject(sql,new Object[]{tid},new BeanPropertyRowMapper<Teacher>(Teacher.class));
return teacher;
}

public void update(Teacher teacher){
String sql="update teacher set tno=?,tname=?,dno=? where tid=?";
jdbcTemplate.update(sql,new Object[]{teacher.getTno(),teacher.getTname(),teacher.getDno(),teacher.getTid()});
}

public void delete(int tid){
String sql="delete from teacher where tid=?";
jdbcTemplate.update(sql,new Object[]{tid});
}
}

业务逻辑层Service-TeacherService

package com.zyz.service;

import com.zyz.dao.TeacherDao;
import com.zyz.dao.base.PageResult;
import com.zyz.model.Teacher;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

import java.util.List;

/**
* Created by zyz on 2016-8-3.
*/
@Service
public class TeacherService {
@Autowired
private TeacherDao teacherDao;
public PageResult<Teacher> queryPageBusiness(Integer currentPage,Integer numPerPage,Teacher teacher){
return teacherDao.queryPage(currentPage,numPerPage,teacher);
}
public List<Teacher> getTeachers(){
return teacherDao.getTeachers();
}
public void addTeacher(Teacher teacher){
teacherDao.addTeacher(teacher);
}
public Teacher getTeacher(int tid){ return teacherDao.getTeacher(tid);}
public void update(Teacher teacher){teacherDao.update(teacher);}
public void delete(int tid){teacherDao.delete(tid);}
}

控制层Controller-TeacherController

package com.zyz.action;

import com.zyz.api.Msg;
import com.zyz.dao.base.PageResult;
import com.zyz.model.Teacher;
import com.zyz.service.TeacherService;
import com.zyz.util.StrUtil;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.*;

import java.util.HashMap;
import java.util.Map;

/**
* Created by zyz on 2016-8-3.
*/
@Controller
@RequestMapping("/teacher")
public class TeacherController {
@Autowired
private TeacherService teacherService;
private static final int PAGE_LIMIT=3;

@RequestMapping(value = "/list",method =RequestMethod.GET)
public String teacherInfo(String page,Model model){
Integer currPage=1;
if(page!=null && !page.equals("")){
currPage=new Integer(page);
}
PageResult<Teacher> pageResult=teacherService.queryPageBusiness(currPage,new Integer(PAGE_LIMIT),new Teacher());
model.addAttribute("pageUrl","/teacher/list?1=1");
model.addAttribute("teachers",pageResult);
return "/teacher/list";
}
@RequestMapping(value = "/find",method = RequestMethod.GET)
public String teacherFind(String tname,String dno,String page,Model model){
Integer currPage = 1;
if(page!=null && !page.equals("")){
currPage = new Integer(page);
}
Teacher teacher=new Teacher();
teacher.setTname(tname);
teacher.setDno(dno);
PageResult<Teacher> pageResult = teacherService.queryPageBusiness(currPage,
new Integer(PAGE_LIMIT),teacher );
model.addAttribute("pageUrl", "/teacher/find?1=1&tname="+tname+"&dno="+dno);
model.addAttribute("teachers", pageResult);
model.addAttribute("findTeacher", teacher);
return "/teacher/list";
}

@RequestMapping(value = "/add",method = RequestMethod.GET)
public String addTeacher(){
return "/teacher/add";
}

@RequestMapping(value = "/edit/{id}",method = RequestMethod.GET)
public String edit(@PathVariable String id,Model model){
try {
int tid=Integer.valueOf(id);
Teacher teacher=teacherService.getTeacher(tid);
model.addAttribute("teacher",teacher);
return "/teacher/edit";
}catch (NumberFormatException ex){
return "/teacher/list";
}
}

@RequestMapping(value = "/edit/save",method = RequestMethod.POST)
public String update(@ModelAttribute("teacher") Teacher teacher, Model model){
Map<String,Msg> msgs=new HashMap<>();
if(StrUtil.isEmpty(teacher.getTno())){
msgs.put("tno",new Msg("tno","工号不能为空."));
}
if(StrUtil.isEmpty(teacher.getTname())){
msgs.put("tname",new Msg("tname","姓名不能为空."));
}
if(StrUtil.isEmpty(teacher.getDno())){
msgs.put("dno",new Msg("dno","部门不能为空."));
}
try {
if(msgs.isEmpty()){
teacherService.update(teacher);
model.addAttribute("success",new Msg("","更新成功."));
}
}catch (Exception ex){
model.addAttribute("error",new Msg("","更新失败."));
}
model.addAttribute("msgs",msgs);
model.addAttribute("teacher",teacher);
return "/teacher/edit";
}

@RequestMapping(value = "/delete/{id}",method = RequestMethod.GET)
public String delete(@PathVariable String id,Model model){
try {
int tid=Integer.valueOf(id);
teacherService.delete(tid);
model.addAttribute("success",new Msg("","删除成功."));
}catch (Exception ex){
model.addAttribute("error",new Msg("","删除失败："+ex.getMessage()));
}
return teacherInfo("",model);
}
}

数据检验－TeacherApi

package com.zyz.api;

import com.zyz.model.Teacher;
import com.zyz.service.TeacherService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.RequestBody;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.RestController;

import java.util.ArrayList;
import java.util.List;

/**
* Created by zyz on 2016-8-4.
*/
@RestController
@RequestMapping("/teacher")
public class TeacherApi {
@Autowired
private TeacherService teacherService;
@RequestMapping(value = "/add",method = RequestMethod.POST)
public ResponseData add(@RequestBody Teacher teacher){
List<Msg> msgs=new ArrayList<Msg>();
if(teacher.getTno()==null || teacher.getTno().equals("")){
msgs.add(new Msg("tnoMsg","工号不能为空."));
}
if(teacher.getTname()==null || teacher.getTname().equals("")){
msgs.add(new Msg("tnameMsg","姓名不能为空."));
}
if(teacher.getDno()==null || teacher.getDno().equals("")){
msgs.add(new Msg("dnoMsg","部门号不能为空."));
}
if(msgs.size()==0){
teacherService.addTeacher(teacher);
return new ResponseData(true,"添加成功.");
}else {
return new ResponseData(false,"添加失败.",msgs);
}
}
}

分页定自义标签－pager.ftl

<#macro pager url totalPage curPage=1 showPageNum=4>
<#if (totalPage?number > 1)>
<div class="holder">
<nav class="center">

<ul class="pagination" pages="${totalPage}" id="ul">

<li id="Previous" <#if curPage?number == 1>class="disabled"</#if>>
<a href="${url}?page=1" aria-label="Previous"> <span
aria-hidden="true">«</span>
</a>
</li>

<@pagercount url=url totalPage=totalPage curPage=curPage showPageNum=showPageNum/>

<li id="Next" <#if curPage?number==totalPage?number>class="disabled"</#if>><a href="${url}?page=${totalPage}" aria-label="Next"> <span
aria-hidden="true">»</span>
</a></li>
</ul>
</nav>
</div>
</#if>
</#macro>

<#macro pagercount url totalPage curPage showPageNum>

<#local halfPage =(showPageNum/2)?int/>
<#local curPage = curPage?number/>

<#if (halfPage>=curPage)>
<@showPage start=1 end=curPage curPage=curPage url=url />
<#if (showPageNum > (totalPage?number))>
<@showPage start=curPage+1 end=(totalPage?number) curPage=curPage url=url/>
<#else>
<@showPage start=curPage+1 end=showPageNum curPage=curPage url=url/>
</#if>
<#else>

<#local startPage1 = (curPage-halfPage) />
<#local startPage2 = curPage+1 />

<#if ((curPage+halfPage)>(totalPage?number))>

<#local endPage = (totalPage?number)/>

<#if (showPageNum > (endPage-startPage1)+1)>
<#local startPage1 = (curPage-halfPage)-1 />
<#if startPage1 <= 0>
<#local startPage1 = (curPage-halfPage) />
</#if>
</#if>

<#else>

<#local endPage = curPage + halfPage/>

<#if ((endPage-startPage1) >= showPageNum)>

<#local startPage1 = startPage1+1 />

</#if>
</#if>

<@showPage start=startPage1 end=curPage curPage=curPage url=url />
<@showPage start=startPage2 end=endPage url=url curPage=curPage/>

</#if>

</#macro>

<#macro showPage start end curPage url>

<#if (end >= start) >

<#list start..end as page>

<li id="${(page)}" <#if curPage==page>class="active"</#if> >
<a href="${url}&page=${page}" class="btn btn-default" role="button"><span>${(page)}
<#if curPage==page> <span class="sr-only">(current)</span></span> </#if>
</a>

</li>

</#list>
</#if>
</#macro>

查－list.ftl

<!doctype html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport"
content="width=device-width, user-scalable=no, initial-scale=1.0, maximum-scale=1.0, minimum-scale=1.0">
<meta http-equiv="X-UA-Compatible" content="ie=edge">
<title>教师列表</title>
<link rel="stylesheet" href="/css/common/bootstrap.min.css">
<script src="/js/common/jquery.min.js"></script>
<script src="/js/common/bootstrap.min.js"></script>
<style>
.msg{
color: #f00;
}
</style>
</head>
<body>
<#include "../common/pager.ftl">
<h3 class="msg">
<#if success?exists>${success.msg!}</#if>
<#if error?exists>${error.msg!}</#if>
</h3>
<div>
姓名:<input type="text" id="tname" name="tname" value="<#if (findTeacher.tname)??>${findTeacher.tname!}</#if>" >  
部门号:<input type="text" id="dno" name="dno"  value="<#if (findTeacher.dno)??>${findTeacher.dno!}</#if>">  
<input type="button" id="btnFind" value="查找" class="btn btn-primary">

<input type="button" id="btnAdd" value="新增" class="btn btn-primary" onclick="window.location.href='/teacher/add'">
<input type="button" id="btnModify" value="修改" class="btn btn-primary">
<input type="button" id="btnDelete" value="删除" class="btn btn-primary">

</div>
<table class="table table-bordered table-hover">
<tr>
<th>#</th>
<th>工号</th>
<th>姓名</th>
<th>部门号</th>
</tr>
<#list teachers.resultList as teacher>
<tr>
<td><input type="radio" name="teacher" value="${teacher.tid!}"></td>
<td>${teacher.tno!}</td>
<td>${teacher.tname!}</td>
<td>${teacher.dno!}</td>
</tr>
</#list>
</table>
<nav>
<!-- 显示分页 -->
<#if teachers?exists>
<@pager url='${pageUrl}' totalPage='${teachers.getTotalPages()}' curPage='${teachers.getCurrentPage()}'/>
</#if>
</nav>
<script src="/js/teacher/list.js"></script>
</body>
</html>

查-list.js

/**
* Created by zyz on 2016-8-11.
*/
$(function () {
$("#btnFind").on("click",function () {
var url="/teacher/find?tname="+$("#tname").val()+"&dno="+$("#dno").val();
window.location.href=url;
});
$("#btnModify").on("click",function () {
var id=$("input[name='teacher']:checked").val();
if(id){
window.location.href="/teacher/edit/"+id;
}
});
$("#btnDelete").on("click",function () {
var id=$("input[name='teacher']:checked").val();
if(id){
window.location.href="/teacher/delete/"+id;
}
});
})

增－add.ftl

<!doctype html>
<html lang="zh-cn">
<head>
<meta charset="UTF-8">
<meta name="viewport"
content="width=device-width, user-scalable=no, initial-scale=1.0, maximum-scale=1.0, minimum-scale=1.0">
<meta http-equiv="X-UA-Compatible" content="ie=edge">
<title>添加教师</title>
<style>
.msg{
color:red;
}
</style>
</head>
<body>
工号:<input type="text" id="tno"><span id="tnoMsg" class="msg"></span><br>
姓名:<input type="text" id="tname"><span id="tnameMsg" class="msg"></span><br>
部门号:<input type="text" id="dno"><span id="dnoMsg" class="msg"></span><br>
<input type="button" id="add" value="添加">
<script src="/js/common/jquery.min.js"></script>
<script src="/js/teacher/add.js"></script>
</body>
</html>

增-add.js（Ajax提交）

/**
* Created by zyz on 2016-8-2.
*/
$(function () {
// 将所有class为msg的元素内容清空,这些元素通常提示错误信息的,每次提交前都要清除,以显示本次的信息
function clearMsg() {
$(".msg").html('');
}
//获取表单数据,返回一个json对象,准备提交给服务器,注意此处json对象的属性必须和对应model对象Person的属性名保持一致
function formData() {
return {
tno:$("#tno").val(),
tname:$("#tname").val(),
dno:$("#dno").val()
};
}
function add() {
var url="/teacher/add";//通过该url找到对应api类的某个方法来接收ajax请求并作出响应(返回一个json对象)
var data=formData();//此处的data是一个json对象
clearMsg();
$.ajax({
type:'POST',//处理异步请求数据的api类@RequestMapping(value="/add",method=RequestMethod.POST)
url: url,
dataType:'json',
contentType: 'application/json',
data:JSON.stringify(data),
//将一个json对象转换成json对象字符串,因为在api中参数@RequestBody接受的是一个json对象字符串,而不是一个json对象
success:function (responseData) {//此处success是表示响应成功,即状态码为200,responseData参数表示返回的数据
if(responseData.success==true){
//ResponseData是一个json对象,是由后台类(ResponseData(success,desc,msgs)类)的对象返回到前台形成的一个json对象,
// 此处的success仅表示该json对象的一个属性,
alert(responseData.desc);
window.location.href="/teacher/list";
}else {//如果验证失败,则 显示错误信息
var msgs=responseData.msgs;
for(var i=0;i<msgs.length;i++){
$('#'+msgs[i].id).html(msgs[i].msg);
}
}
}
});
}
// 定义一个初始化的方法
function init() {
$("#add").on("click",function () {//给添加按纽绑定事件
add();
});
}
init();//调用初始化事件
})

改－edit.ftl

<!doctype html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport"
content="width=device-width, user-scalable=no, initial-scale=1.0, maximum-scale=1.0, minimum-scale=1.0">
<meta http-equiv="X-UA-Compatible" content="ie=edge">
<title>修改</title>
<link rel="stylesheet" href="/css/common/bootstrap.min.css">
<script src="/js/common/jquery.min.js"></script>
<script src="/js/common/bootstrap.min.js"></script>
<style>
.msg{
color: #f00;
}
</style>
</head>
<body>
<form action="/teacher/edit/save" method="post">
<input type="hidden" name="tid" value="${teacher.tid!}">
<#if success?exists >
<h3 class="msg">${success.msg!}</h3>
</#if>
<#if error?exists >
<h3 class="msg">${error.msg!}</h3>
</#if>
工号:<input type="text" name="tno" value="${teacher.tno!}">
<#if msgs?exists>
<#if msgs["tno"]?exists>
<span class="msg">${msgs["tno"].msg!}</span>
</#if>
</#if>
<br>
姓名:<input type="text" name="tname" value="${teacher.tname!}">
<#if msgs?exists>
<#if msgs["tname"]?exists>
<span class="msg">${msgs["tname"].msg!}</span>
</#if>
</#if>
<br>
部门:<input type="text" name="dno" value="${teacher.dno!}">
<#if msgs?exists>
<#if msgs["dno"]?exists>
<span class="msg">${msgs["dno"].msg!}</span>
</#if>
</#if>
<br>
<input type="submit" value="保存" class="btn btn-primary">
<input type="button" value="返回" class="btn btn-primary" onclick="window.location.href='/teacher/list'">
</form>
</body>
</html>