1.效果图
2.流程图解
3.代码实现
一.效果图：
添加学生效果图：
删除学生效果图：
更新学生效果图
模糊查询效果图
分页效果图
二.流程图解
添加学生：
删除学生：
更新学生
查询学生：
模糊查询：
分页功能：
三.代码实现
数据库名称为：stus
表名称为：stu
属性为：sid,sname,gender,phone,birthday,hobby,info
src下，七个包，16个文件，一个c3p0配置文件：
需要导入的 6个 jar包（记得添加路径）：
5个JSP文件：
c3p0配置文件
c3p0-config.xml（必须是这个名字！！！）
<?xml version="1.0" encoding="UTF-8"?>
<c3p0-config>
<default-config>
<property name="driverClass">com.mysql.jdbc.Driver</property>
<property name="jdbcUrl">jdbc:mysql://localhost/stus</property>
<property name="user">root</property>
<property name="password">1234</property>
<property name="initialPoolSize">10</property>
<property name="maxIdleTime">30</property>
<property name="maxPoolSize">100</property>
<property name="minPoolSize">10</property>
<property name="maxStatements">200</property>
</default-config>
</c3p0-config>
1.dao层
StudentDao.java：
package com.dao;
import java.sql.SQLException;
import java.util.List;
import com.domain.Student;
//这是对学生表的数据库操作
public interface StudentDao {
//查询所有学生
List<Student> findAll() throws SQLException;
//添加学生,需要添加到数据库的学生对象
void insert(Student student) throws SQLException;
//根据sid删除学生
void delete(int sid) throws SQLException;
//根据ID查询单个学生对象
Student findStudentById(int sid) throws SQLException;
//更新学生信息
void update(Student student) throws SQLException;
//模糊查询，根据姓名或者性别，或者两者兼有
List<Student> searchStudent(String sname,String sgender) throws SQLException;
//查询当页的学生数据
List<Student> findStudentByPage(int currentPage) throws SQLException;
int PAGE_SIZE = 5;//一页显示多少条纪录
//查询总的学生纪录数
int findCount() throws SQLException;
}
2. dao.impl层
StudentDaoImpl.java：
package com.dao.impl;
import java.sql.SQLException;
import java.util.ArrayList;
import java.util.List;
import org.apache.commons.dbutils.QueryRunner;
import org.apache.commons.dbutils.handlers.BeanHandler;
import org.apache.commons.dbutils.handlers.BeanListHandler;
import org.apache.commons.dbutils.handlers.ScalarHandler;
import com.dao.StudentDao;
import com.domain.Student;
import com.util.JDBCUtils;
import com.util.TestUtils;
//StudentDao的实现。针对前面定义的规范，做出具体的实现
public class StudentDaoImpl implements StudentDao {
// 查询所有学生
@Override
public List<Student> findAll() throws SQLException {
QueryRunner runner = new QueryRunner(JDBCUtils.getDataSource());
String sql = "select * from stu";
List<Student> list = runner.query(sql, new BeanListHandler<Student>(Student.class));
return list;
}
@Override
public void insert(Student student) throws SQLException {
QueryRunner runner = new QueryRunner(JDBCUtils.getDataSource());
String sql = "insert into stu values(null,?,?,?,?,?,?)";
runner.update(sql,
student.getSname(),
student.getGender(),
student.getPhone(),
student.getBirthday(),
student.getHobby(),
student.getInfo()
);
}
@Override
public void delete(int sid) throws SQLException {
QueryRunner runner = new QueryRunner(JDBCUtils.getDataSource());
String sql = "delete from stu where sid = ?";
runner.update(sql, sid);
}
@Override
public Student findStudentById(int sid) throws SQLException {
QueryRunner runner = new QueryRunner(JDBCUtils.getDataSource());
String sql = "select * from stu where sid = ?";
return runner.query(sql, new BeanHandler<Student>(Student.class),sid);
}
@Override
public void update(Student student) throws SQLException {
QueryRunner runner = new QueryRunner(JDBCUtils.getDataSource());
runner.update("update stu set sname=? , gender=? , phone=? , birthday=? , hobby=? , info=? where sid=?",
student.getSname(),
student.getGender(),
student.getPhone(),
student.getBirthday(),
student.getHobby(),
student.getInfo(),
student.getSid()
);
}
@Override
public List<Student> searchStudent(String sname, String sgender) throws SQLException {
QueryRunner runner = new QueryRunner(JDBCUtils.getDataSource());
/*
* 这里要分析一下：
* 如果只有姓名 ，select * from stu where sname like ? ;
* 如果只有性别 ， select * from stu where gender = ?
*
* 如果两个都有 select * from stu where sname like ? and gender=?
*
* 如果两个都没有就查询所有。
*
*/
String sql = "select * from stu where 1=1 ";
List<String> list = new ArrayList<String>();
//判断有没有姓名，如果有，就组拼到sql语句里面
if(!TestUtils.isEmpty(sname)){
sql = sql+" and sname like ? ";
list.add("%" + sname + "%");
}
//判断有没有性别，如果有，就组拼到sql语句里面
if(!TestUtils.isEmpty(sgender)){
sql = sql+" and gender = ? ";
list.add(sgender);
}
return runner.query(sql, new BeanListHandler<Student>(Student.class),list.toArray());
}
@Override
public List<Student> findStudentByPage(int currentPage) throws SQLException {
QueryRunner runner = new QueryRunner(JDBCUtils.getDataSource());
//第一个问号，代表一页返回多少条纪录，第二个问号，跳过前面的多少条纪录
return runner.query("select * from stu limit ? offset ? ",
new BeanListHandler<Student>(Student.class) , PAGE_SIZE , (currentPage - 1) * PAGE_SIZE);
}
@Override
public int findCount() throws SQLException {
QueryRunner runner = new QueryRunner(JDBCUtils.getDataSource());
//new ScalarHandler() 用于处理均值、总的个数...
Long result = (Long) runner.query("select count(*) from stu " , new ScalarHandler());
return result.intValue();
}
}
3. domain层
PageBean.java：
package com.domain;
import java.util.List;
//这是一个封装了分页的数据
//里面包含：
/* 该页的学生集合数据
总的纪录数
总的页数
当前页
每页显示的纪录数*/
public class PageBean<T> {
private int currentPage; //当前页
private int totalPage; //总页数
private int pageSize; //每页的记录数
private int totalSize; //总的纪录数
private List<T> list; // 当前页的学生集合
public int getCurrentPage() {
return currentPage;
}
public void setCurrentPage(int currentPage) {
this.currentPage = currentPage;
}
public int getTotalPage() {
return totalPage;
}
public void setTotalPage(int totalPage) {
this.totalPage = totalPage;
}
public int getPageSize() {
return pageSize;
}
public void setPageSize(int pageSize) {
this.pageSize = pageSize;
}
public int getTotalSize() {
return totalSize;
}
public void setTotalSize(int totalSize) {
this.totalSize = totalSize;
}
public List<T> getList() {
return list;
}
public void setList(List<T> list) {
this.list = list;
}
}
Student.java
package com.domain;
import java.util.Date;
//这是学生封装的对象bean
public class Student {
private int sid;
private String sname;
private String gender;
private String phone;
private String hobby;
private String info;
private Date birthday;
public Student() {
super();
// TODO Auto-generated constructor stub
}
public Student(int sid,String sname, String gender, String phone, String hobby, String info, Date birthday) {
super();
this.sid = sid;
this.sname = sname;
this.gender = gender;
this.phone = phone;
this.hobby = hobby;
this.info = info;
this.birthday = birthday;
}
public Student(String sname, String gender, String phone, String hobby, String info, Date birthday) {
super();
this.sname = sname;
this.gender = gender;
this.phone = phone;
this.hobby = hobby;
this.info = info;
this.birthday = birthday;
}
public int getSid() {
return sid;
}
public void setSid(int sid) {
this.sid = sid;
}
public String getSname() {
return sname;
}
public void setSname(String sname) {
this.sname = sname;
}
public String getGender() {
return gender;
}
public void setGender(String gender) {
this.gender = gender;
}
public String getPhone() {
return phone;
}
public void setPhone(String phone) {
this.phone = phone;
}
public String getHobby() {
return hobby;
}
public void setHobby(String hobby) {
this.hobby = hobby;
}
public String getInfo() {
return info;
}
public void setInfo(String info) {
this.info = info;
}
public Date getBirthday() {
return birthday;
}
public void setBirthday(Date birthday) {
this.birthday = birthday;
}
@Override
public String toString() {
return "Student [sid=" + sid + ", sname=" + sname + ", gender=" + gender + ", phone=" + phone + ", hobby="
+ hobby + ", info=" + info + ", birthday=" + birthday + "]";
}
}
4. service层
StudentService.java
package com.service;
import java.sql.SQLException;
import java.util.List;
import com.domain.PageBean;
import com.domain.Student;
//这是学生的业务处理规范
public interface StudentService {
//查询所有学生
List<Student> findAll() throws SQLException;
//添加学生,需要添加到数据库的学生对象
void insert(Student student) throws SQLException;
//根据sid删除学生
void delete(int sid) throws SQLException;
//根据ID查询单个学生对象
Student findStudentById(int sid) throws SQLException;
//更新学生信息
void update(Student student) throws SQLException;
//模糊查询，根据姓名或者性别，或者两者兼有
List<Student> searchStudent(String sname,String sgender) throws SQLException;
//查询当页的学生数据
PageBean findStudentByPage(int currentPage) throws SQLException;
}
5. service.impl层
StudentServiceImpl.java
package com.service.impl;
import java.sql.SQLException;
import java.util.List;
import com.dao.StudentDao;
import com.dao.impl.StudentDaoImpl;
import com.domain.PageBean;
import com.domain.Student;
import com.service.StudentService;
//这是学生业务实现
public class StudentServiceImpl implements StudentService {
@Override
public List<Student> findAll() throws SQLException {
StudentDao dao = new StudentDaoImpl();
return dao.findAll();
}
@Override
public void insert(Student student) throws SQLException {
StudentDao dao = new StudentDaoImpl();
dao.insert(student);
}
@Override
public void delete(int sid) throws SQLException {
StudentDao dao = new StudentDaoImpl();
dao.delete(sid);
}
@Override
public Student findStudentById(int sid) throws SQLException {
StudentDao dao = new StudentDaoImpl();
return dao.findStudentById(sid);
}
@Override
public void update(Student student) throws SQLException {
StudentDao dao = new StudentDaoImpl();
dao.update(student);
}
@Override
public List<Student> searchStudent(String sname, String sgender) throws SQLException {
StudentDao dao = new StudentDaoImpl();
return dao.searchStudent(sname, sgender);
}
@Override
public PageBean findStudentByPage(int currentPage) throws SQLException {
//封装分页的该页数据
PageBean<Student> pageBean = new PageBean<Student>();
int pageSize = StudentDao.PAGE_SIZE;
pageBean.setCurrentPage(currentPage); //设置当前页
pageBean.setPageSize(pageSize); //设置每页显示多少条纪录
StudentDao dao = new StudentDaoImpl();
List<Student> list = new StudentDaoImpl().findStudentByPage(currentPage);
pageBean.setList(list); //设置这一页的学生数据
//总的记录数，总的页数
int count = dao.findCount();
pageBean.setTotalSize(count); //设置总的纪录数
pageBean.setTotalPage(count % pageSize == 0 ? count / pageSize : (count / pageSize) + 1); //总页数
return pageBean;
}
}
6. Servlet层
AddServlet.java：
package com.servlet;
import java.io.IOException;
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.Arrays;
import java.util.Date;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import com.domain.Student;
import com.service.StudentService;
import com.service.impl.StudentServiceImpl;
/**
* Servlet implementation class AddServlet
*/
public class AddServlet extends HttpServlet {
//用于处理学生的添加请求
protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
request.setCharacterEncoding("UTF-8");
try {
//1.获取客户端提交上来的数据
String sname = request.getParameter("sname");
String gender = request.getParameter("gender");
String phone = request.getParameter("phone");
String birthday = request.getParameter("birthday");
// String hobby = request.getParameter("hobby"); (getParameter只能得到一条数据)
String info = request.getParameter("info");
String [] h = request.getParameterValues("hobby");
// [篮球，足球，写字] -----> 篮球，足球，写字
String hobby = Arrays.toString(h);
hobby = hobby.substring(1, hobby.length()-1);
//2.添加到数据库
Date date = new SimpleDateFormat("yyyy-MM-dd").parse(birthday);
Student student = new Student(sname, gender, phone, hobby, info, date);
StudentService service = new StudentServiceImpl();
service.insert(student);
//3.跳转到列表页
//再查一次数据库，然后再装到作用域中，然后再跳转
//这里是直接跳转到页面上，那么这个页面会重新翻译一次，上面的那个request请求存放的数据就没有了
// request.getRequestDispatcher("list.jsp").forward(request, response);
// {所以这方法不行}
// servlet除了能跳JSP之外，还能跳servlet
request.getRequestDispatcher("StudentListServlet").forward(request, response);
return;
} catch (Exception e) {
e.printStackTrace();
}
}
protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
doGet(request, response);
}
}
DeleteServlet.java：
package com.servlet;
import java.io.IOException;
import java.sql.SQLException;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import com.service.StudentService;
import com.service.impl.StudentServiceImpl;
//用于处理删除学生
public class DeleteServlet extends HttpServlet {
protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
// System.out.println(sid);
try {
//1.接收sid
int sid = Integer.parseInt(request.getParameter("sid"));//本来是String类型，强转int类型
//2.执行删除
StudentService service = new StudentServiceImpl();
service.delete(sid);
//3.跳转到列表页
request.getRequestDispatcher("StudentListServlet").forward(request, response);
} catch (SQLException e) {
e.printStackTrace();
}
}
protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
}
}
EditServlet.java：
package com.servlet;
import java.io.IOException;
import java.sql.SQLException;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import com.domain.Student;
import com.service.StudentService;
import com.service.impl.StudentServiceImpl;
//处理单个学生的更新，查询一个学生的信息，然后跳转到更新页面
public class EditServlet extends HttpServlet {
protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
try {
//1.接收ID
int sid = Integer.parseInt(request.getParameter("sid"));
//2.查询学生数据
StudentService service = new StudentServiceImpl();
Student stu = service.findStudentById(sid);
//3.存数据
request.setAttribute("stu", stu);
//4.跳转
request.getRequestDispatcher("edit.jsp").forward(request, response);
} catch (SQLException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
}
}
SearchStudentServlet.java
package com.servlet;
import java.io.IOException;
import java.sql.SQLException;
import java.util.List;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import com.domain.Student;
import com.service.StudentService;
import com.service.impl.StudentServiceImpl;
public class SearchStudentServlet extends HttpServlet {
protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
request.setCharacterEncoding("UTF-8");
try {
//1.取到了要查询的关键数据：姓名，性别
String sname = request.getParameter("sname");
String sgender = request.getParameter("sgender");
//2.找service去查询
StudentService service = new StudentServiceImpl();
List<Student> list = service.searchStudent(sname, sgender);
//3.存数据
request.setAttribute("list", list);
//4.跳转
request.getRequestDispatcher("list.jsp").forward(request, response);
return;
} catch (SQLException e) {
e.printStackTrace();
}
}
protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
doGet(request, response);
}
}
StudentListPageServlet.java
package com.servlet;
import java.io.IOException;
import java.sql.SQLException;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import com.domain.PageBean;
import com.service.StudentService;
import com.service.impl.StudentServiceImpl;
public class StudentListPageServlet extends HttpServlet {
private static final long serialVersionUID = 1L;
protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
try {
//1.获取需要显示的页码数
int currentPage = Integer.parseInt(request.getParameter("currentPage"));
//2.根据指定的页数，去获取该页的数据回来
StudentService service = new StudentServiceImpl();
PageBean pageBean = service.findStudentByPage(currentPage);
request.setAttribute("pageBean", pageBean);
//3.跳转页面
request.getRequestDispatcher("list_page.jsp").forward(request, response);
} catch (SQLException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
doGet(request, response);
}
}
StudentListServlet.java：
package com.servlet;
import java.io.IOException;
import java.sql.SQLException;
import java.util.List;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import com.domain.Student;
import com.service.StudentService;
import com.service.impl.StudentServiceImpl;
/**
* 负责查询所有的学生信息，然后呈现到list.jsp页面上。
*/
public class StudentListServlet extends HttpServlet {
protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
try {
// 1.查询出来所有的学生
StudentService service = new StudentServiceImpl();
List<Student> list = service.findAll();
// 2.先把数据存储到作用域中
request.setAttribute("list", list);
// 3.跳转页面
request.getRequestDispatcher("list.jsp").forward(request, response);
} catch (SQLException e) {
e.printStackTrace();
}
}
protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
doGet(request, response);
}
}
UpdateServlet.java：
package com.servlet;
import java.io.IOException;
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.Arrays;
import java.util.Date;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import com.domain.Student;
import com.service.StudentService;
import com.service.impl.StudentServiceImpl;
public class UpdateServlet extends HttpServlet {
protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
request.setCharacterEncoding("UTF-8");
try {
//1.获取客户端提交上来的数据
int sid = Integer.parseInt(request.getParameter("sid"));
String sname = request.getParameter("sname");
String gender = request.getParameter("gender");
String phone = request.getParameter("phone");
String birthday = request.getParameter("birthday");
// String hobby = request.getParameter("hobby"); (getParameter只能得到一条数据)
String info = request.getParameter("info");
String [] h = request.getParameterValues("hobby");
// [篮球，足球，写字] -----> 篮球，足球，写字
String hobby = Arrays.toString(h);
hobby = hobby.substring(1, hobby.length()-1);
Date date = new SimpleDateFormat("yyyy-MM-dd").parse(birthday);
Student student = new Student(sid,sname, gender, phone, hobby, info, date);
//2.更新数据库数据
StudentService service = new StudentServiceImpl();
service.update(student);
//3.跳转
request.getRequestDispatcher("StudentListServlet").forward(request, response);
} catch (Exception e) {
e.printStackTrace();
}
}
protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
doGet(request, response);
}
}
7. util层
JDBCUtils.java
package com.util;
import java.io.InputStream;
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.sql.Statement;
import java.util.Properties;
import javax.sql.DataSource;
import com.mchange.v2.c3p0.ComboPooledDataSource;
public class JDBCUtils {
static ComboPooledDataSource dataSource =null;
static{
dataSource = new ComboPooledDataSource();
}
public static DataSource getDataSource(){
return dataSource;
}
public static Connection getConnection() throws SQLException{
return dataSource.getConnection();
}
public static void close(Connection con,Statement stat){
if(stat != null){
try{
stat.close();
}catch(SQLException ex){};
}
if(con != null){
try{
con.close();
}catch(SQLException ex){};
}}
public static void close(Connection con,Statement stat,ResultSet rs){
if(stat != null){
try{
stat.close();
}catch(SQLException ex){};
}
if(con != null){
try{
con.close();
}catch(SQLException ex){};
}
if(rs != null){
try{
rs.close();
}catch(SQLException ex){};
}}}
TestUtils.java：
package com.util;
public class TestUtils {
public static boolean isEmpty(CharSequence s){
return s==null || s.length()==0;
}
}
8. JSP系列文件
list.jsp：
<%@ page language="java" contentType="text/html; charset=GBK"
pageEncoding="GBK"%>
<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=GBK">
<title>学生列表页面</title>
<script type="text/javascript">
function doDelete(sid) {
var flag = confirm("是否确定删除？");
if(flag){
window.location.href="DeleteServlet?sid="+sid
}
}
</script>
</head>
<body>
<form action="SearchStudentServlet" method="post">
<table border="1" width="700">
<tr>
<td colspan="8">
按姓名查询：<input type="text" name="sname">
按性别查询：<select name="sgender">
<option value="">--请选择--
<option value="男">男
<option value="女">女
</select>
<input type="submit" value="查询">
<a href="add.jsp">添加</a>
</td>
</tr>
<tr align="center">
<td>编号</td>
<td>姓名</td>
<td>性别</td>
<td>电话</td>
<td>生日</td>
<td>爱好</td>
<td>简介</td>
<td>操作</td>
</tr>
<c:forEach items="${list }" var="stu">
<tr align="center">
<td>${stu.sid }</td>
<td>${stu.sname }</td>
<td>${stu.gender }</td>
<td>${stu.phone }</td>
<td>${stu.birthday }</td>
<td>${stu.hobby }</td>
<td>${stu.info }</td>
<td><a href="EditServlet?sid=${stu.sid }">更新</a> <a href="#" onclick="doDelete(${stu.sid});">删除</a></td>
</tr>
</c:forEach>
</table>
</form>
</body>
</html>
add.jsp
<%@ page language="java" contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>添加学生页面</title>
</head>
<body>
<h3>添加学生页面</h3>
<form method="post" action="AddServlet">
<table border="1" width="700">
<tr>
<td>姓名</td>
<td><input type="text" name="sname" /></td>
</tr>
<tr>
<td>性别</td>
<td>
<input type="radio" name="gender" value="男"/>男
<input type="radio" name="gender" value="女" />女
</td>
</tr>
<tr>
<td>电话</td>
<td><input type="text" name="phone"/></td>
</tr>
<tr>
<td>生日</td>
<td><input type="date" name="birthday"/></td>
</tr>
<tr>
<td>爱好</td>
<td>
<input type="checkbox" name="hobby" value="游泳"/>游泳
<input type="checkbox" name="hobby" value="篮球"/>篮球
<input type="checkbox" name="hobby" value="足球"/>足球
<input type="checkbox" name="hobby" value="看书"/>看书
<input type="checkbox" name="hobby" value="写字"/>写字
</td>
</tr>
<tr height="50" >
<td>简介</td>
<td><textarea name="info" rows="3" cols="30"></textarea></td>
</tr>
<tr>
<td colspan="2"><input type="submit" value="添加" /></td>
</tr>
</table>
</form>
</body>
</html>
edit.jsp
<%@ page language="java" contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8"%>
<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>
<%@ taglib prefix="fn" uri="http://java.sun.com/jsp/jstl/functions" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>更新学生页面</title>
</head>
<body>
<h3>更新学生页面</h3>
<form method="get" action="UpdateServlet">
<input type="hidden" name="sid" value="${stu.sid}">
<table border="1" width="700">
<tr>
<td>姓名</td>
<td><input type="text" name="sname" value="${stu.sname }"></td>
</tr>
<tr>
<td>性别</td>
<td>
<!-- 如果性别是男的，可以在男的性别input标签里面，出现check，
如果性别是女的，可以在女的性别input标签里面，出现check， -->
<input type="radio" name="gender" value="男" <c:if test="${stu.gender == '男' }">checked</c:if>>男
<input type="radio" name="gender" value="女" <c:if test="${stu.gender == '女' }">checked</c:if>>女
</td>
</tr>
<tr>
<td>电话</td>
<td><input type="text" name="phone" value="${stu.phone }"></td>
</tr>
<tr>
<td>生日</td>
<td><input type="date" name="birthday" value="${stu.birthday }"></td>
</tr>
<tr>
<td>爱好</td>
<td>
<input type="checkbox" name="hobby" value="游泳" <c:if test="${fn:contains(stu.hobby,'游泳') }">checked</c:if>>游泳
<input type="checkbox" name="hobby" value="篮球" <c:if test="${fn:contains(stu.hobby,'篮球') }">checked</c:if>>篮球
<input type="checkbox" name="hobby" value="足球" <c:if test="${fn:contains(stu.hobby,'足球') }">checked</c:if>>足球
<input type="checkbox" name="hobby" value="看书" <c:if test="${fn:contains(stu.hobby,'看书') }">checked</c:if>>看书
<input type="checkbox" name="hobby" value="写字" <c:if test="${fn:contains(stu.hobby,'写字') }">checked</c:if>>写字
</td>
</tr>
<tr height="50" >
<td>简介</td>
<td><textarea name="info" rows="3" cols="30">${stu.info }</textarea></td>
</tr>
<tr>
<td colspan="2"><input type="submit" value="更新" /></td>
</tr>
</table>
</form>
</body>
</html>
index.jsp
<%@ page language="java" contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
<title>首页</title>
</head>
<body>
<h3><a href="StudentListServlet">显示所有的学生列表</a></h3>
<h3><a href="StudentListPageServlet?currentPage=1">分页显示所有的学生</a></h3>
</body>
</html>
list_page.jsp
<%@ page language="java" contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8"%>
<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>学生列表页面</title>
<script type="text/javascript">
function doDelete(sid) {
var flag = confirm("是否确定删除？");
if(flag){
window.location.href="DeleteServlet?sid="+sid
}
}
</script>
</head>
<body>
<form action="SearchStudentServlet" method="post">
<table border="1" width="700">
<tr>
<td colspan="8">
按姓名查询：<input type="text" name="sname">
按性别查询：<select name="sgender">
<option value="">--请选择--
<option value="男">男
<option value="女">女
</select>
<input type="submit" value="查询">
<a href="add.jsp">添加</a>
</td>
</tr>
<tr align="center">
<td>编号</td>
<td>姓名</td>
<td>性别</td>
<td>电话</td>
<td>生日</td>
<td>爱好</td>
<td>简介</td>
<td>操作</td>
</tr>
<c:forEach items="${pageBean.list }" var="stu">
<tr align="center">
<td>${stu.sid }</td>
<td>${stu.sname }</td>
<td>${stu.gender }</td>
<td>${stu.phone }</td>
<td>${stu.birthday }</td>
<td>${stu.hobby }</td>
<td>${stu.info }</td>
<td><a href="EditServlet?sid=${stu.sid }">更新</a> <a href="#" onclick="doDelete(${stu.sid});">删除</a></td>
</tr>
</c:forEach>
<tr>
<td colspan="8">
第${pageBean.currentPage } / ${pageBean.totalPage }
每页显示${pageBean.pageSize }条
总的纪录数${pageBean.totalSize }
<c:if test="${pageBean.currentPage !=1 }">
<a href="StudentListPageServlet?currentPage=1">首页 |
<a href="StudentListPageServlet?currentPage=${pageBean.currentPage-1 }">上一页
</c:if>
<c:forEach begin="1" end="${pageBean.totalPage }" var="i">
<c:if test="${pageBean.currentPage == i }">
${i }
</c:if>
<c:if test="${pageBean.currentPage != i }">
<a href="StudentListPageServlet?currentPage=${i }">${i }</a>
</c:if>
</c:forEach>
<c:if test="${pageBean.currentPage != pageBean.totalPage}">
<a href="StudentListPageServlet?currentPage=${pageBean.currentPage+1 }">下一页</a> |
<a href="StudentListPageServlet?currentPage=${pageBean.totalPage }">尾页</a>
</c:if>
</td>
</tr>
</table>
</form>
</body>
</html>