专家信息列表 | ||||||||||||
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Web应用开发课程--实验十过滤器作业（中文乱码过滤、登录过滤器和密码修改过滤器）
上了一个学期的Web结课了，这是最后一次作业，有的地方写的不是那么完善，也是在前面作业基础上做的，针对性不是很强但很全面。从html、css、js、servlet、连接mysql、jsp、javabean、jsp，再到最后的过滤器。一开始只是为了达到作业要求，后续也就懒得改了。
这个项目可以实现登录功能、注册功能、显示专家信息、修改信息、修改密码、注销账号和退出。项目结构如下，使用了Servlet、JavaBean、Filter.
web.xml配置如下：
exp10
charSet
UTF-8
login
exp08.servlet.LoginServlet
login
/LoginServlet
register
exp08.servlet.RegisterServlet
register
/RegisterServlet
expert
exp08.servlet.ShowExpert
expert
/ShowExpert
update
exp08.servlet.UpdateServlet
update
/UpdateServlet
update1
exp08.servlet.UpdateServlet1
update1
/UpdateServlet1
quit
exp08.servlet.QuitServlet
quit
/QuitServlet
logout
exp08.servlet.LogoutServlet
logout
/LogoutServlet
Updatepwd
exp08.servlet.UpdatepwdServlet
Updatepwd
/UpdatepwdServlet
VerificationServlet
exp08.servlet.VerificationServlet
VerificationServlet
/VerificationServlet
encode
exp10.filter.EncodingFilter
encode
/*
REQUEST
FORWARD
INCLUDE
ERROR
LoginFilter
exp10.filter.LoginFilter
LoginFilter
/ucenter/*
REQUEST
FORWARD
INCLUDE
PwdFilter
exp10.filter.PwdFilter
PwdFilter
/UpdatepwdServlet
REQUEST
FORWARD
INCLUDE
index.html
index.htm
index.jsp
default.html
default.htm
default.jsp
encodingConfiguration
html encoding
*.html
UTF-8
mysql数据库为his,里面有两个表expert和user
一、登录功能
首先是首页index.jsp
<%@ page language="java" contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8"%>
HIS
<%@ include file="inc/header.html"%>
<%@ include file="inc/top.html"%>
<%@ include file="inc/content.html"%>
jsp读取的文件太多，全放上来比较麻烦，这里放之前做的html文件，图片可以自己去找。
css文件放到最下面
index.html
首页
实现了医院门诊部挂号处所需的各种功能，包括门诊安排的管理，号表的生成及维护，门诊预约管理和挂号处理，同时提供了病人信息的查询和有关挂号工作的统计功能。支持预约、限量、不限量、分时挂号。(功能主要包括:门诊安排、挂号处理、统计与查询等。)
本系统集划价收费功能于一体，费别及收费系数的自定义能力，灵活多样的输入方法，简单易学，允许项目在价表中不存在时手工划价，与门诊药房的库存关联，无药报警，集中统一的价表管理，支持医院"一卡通"，集成医疗保险收费项目控制，费用自动分比例，费用按医疗保险政策分段统计等。
门诊药房管理系统是医院门诊处方药品的发放中心。可以根据药房的不同类别分:中药房、西药房、中成药等不同药房。药房与药库连用，直接从药库出库转药房入库，与门诊收费连接直接显示划价处方药品列表。可对患者处方查询;可对任意时间段的发药量查询;可对午间时间段的发药患者查询。
登录页面如下，注意把上面的登录跳转链接改一下。
login.jsp
<%@ page language="java" contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8"%>
Insert title here
<%@ include file="inc/header.html"%>
<%@ include file="inc/top.html"%>
<%if(session.getAttribute("msg")!=null){
out.println(""+(String)session.getAttribute("msg")+"
");
} %>
然后是登录功能的实现
LoginServlet.java
package exp08.servlet;
import java.io.IOException;
import java.sql.Connection;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;
import exp08.bean.DBBean;
import exp08.bean.UserBean;
import exp08.bean.UiBean;
public class LoginServlet extends HttpServlet{
/**
*
*/
private static final long serialVersionUID = 1L;
@Override
protected void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
HttpSession session = req.getSession();
String name = req.getParameter("uname");
String pwd = req.getParameter("upwd");
String[] param = new String[2];
param[0] = name;
param[1] = pwd;
Connection conn = null;
PreparedStatement pst = null;
ResultSet rs = null;
String sql = "select * from user where username = ? and password = ?";
try {
conn = DBBean.getConn();
rs = DBBean.getRs(sql, param, conn);
if(rs.next()) {
UiBean ui=new UiBean();
UserBean ubean = new UserBean();
ui.setlState(true);
ui.setSid(session.getId());
ubean.setId(rs.getString("id"));
ubean.setUsername(rs.getString("username"));
ubean.setPassword(rs.getString("password"));
ubean.setRealname(rs.getString("realName"));
ubean.setSex(rs.getString("sex"));
ubean.setTelcode(rs.getString("telcode"));
ubean.setAddress(rs.getString("address"));
ubean.setCdh(rs.getString("cdh"));
session.setAttribute("ui", ui);
session.setAttribute("ubean", ubean);
if(session.getAttribute("msg")!=null)
session.removeAttribute("msg");
req.getRequestDispatcher("ucenter/uinfo.jsp").forward(req, resp);
return;
}else {
session.setAttribute("msg", "用户名或密码错误，请重新登录");
if(session.getAttribute("ui")!=null) session.removeAttribute("ui");
if(session.getAttribute("ubean")!=null) session.removeAttribute("ubean");
resp.sendRedirect("login.jsp");
return;
}
}catch (ClassNotFoundException | SQLException e) {
e.printStackTrace();
}finally {
try {
DBBean.close(rs, pst, conn);
} catch (SQLException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
}
@Override
protected void doPost(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
// TODO Auto-generated method stub
doGet(req, resp);
}
}
二、注册功能
注册页面
register.html
Insert title here
用户注册
然后是注册功能的实现
package exp08.servlet;
import java.io.IOException;
import java.sql.Connection;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;
import exp08.bean.DBBean;
public class RegisterServlet extends HttpServlet{
/**
*
*/
private static final long serialVersionUID = 1L;
@Override
protected void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
HttpSession session = req.getSession();
String name = req.getParameter("userName");
String[] param = new String[1];
param[0] = name;
Connection conn = null;
PreparedStatement pst = null;
ResultSet rs = null;
String sql = "select * from user where username = ?";
try {
conn = DBBean.getConn();
rs = DBBean.getRs(sql, param, conn);
if(rs.next()) {
session.setAttribute("msg", "注册失败，该用户已存在");
if(session.getAttribute("ubean")!=null) session.removeAttribute("ubean");
resp.sendRedirect("login.jsp");
return;
}else {
rs.close();
sql="insert into user (username,password,realname,sex,telcode,address,cdh) value(?,?,?,?,?,?,?)";
String[] param1 = new String[7];
param1[0] = req.getParameter("userName");
param1[1] = req.getParameter("userPwd");
param1[2] = req.getParameter("realName");
param1[3] = req.getParameter("sex");
param1[4] = req.getParameter("mobile");
param1[5] = req.getParameter("company");
param1[6] = req.getParameter("mbs");
conn = DBBean.getConn();
DBBean.getRss(sql, param1, conn);
session.setAttribute("msg", "注册成功！");
req.getRequestDispatcher("login.jsp").forward(req, resp);
return;
}
}catch (ClassNotFoundException | SQLException e) {
e.printStackTrace();
}finally {
try {
DBBean.close(rs, pst, conn);
} catch (SQLException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
}
@Override
protected void doPost(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
// TODO Auto-generated method stub
doGet(req, resp);
}
}
特别注意，登录和注册都是要和数据库连接的，我用的是mysql,连接代码就在servlet里面，注意改一下数据库的名字、用户名和密码，而且还用了JavaBean,也就是连接数据库的时候调用的是javabean里的方法。数据库里的表的信息要和代码里的对应，这里把后面修改密码、显示专家信息的代码都一起放下面：
DBBean.java
package exp08.bean;
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;
public class DBBean {
private final static String DRIVER = "com.mysql.cj.jdbc.Driver";
private final static String URL = "jdbc:mysql://localhost:3306/his?userSSL=false&serverTimezone=Asia/Shanghai";
private final static String USER = "root";
private final static String PASSWORD = "12345678";
public static Connection getConn() throws ClassNotFoundException, SQLException {
Class.forName(DRIVER);
Connection conn = DriverManager.getConnection(URL, USER, PASSWORD);
return conn;
}
public static ResultSet getRs(String sql,String[] param,Connection conn) throws SQLException {
PreparedStatement pst = conn.prepareStatement(sql);
if(param!=null) {
for(int i=1;i<=param.length;i++) {
pst.setString(i, param[i-1]);
}
}
ResultSet rs = pst.executeQuery();
return rs;
}
public static void getRss(String sql,String[] param1,Connection conn) throws SQLException {
PreparedStatement pst = conn.prepareStatement(sql);
if(param1!=null) {
for(int i=1;i<=param1.length;i++) {
pst.setString(i, param1[i-1]);
}
}
pst.executeUpdate();
return;
}
public static void close(ResultSet rs,PreparedStatement pst,Connection conn) throws SQLException {
if(rs!=null)rs.close();
if(pst!=null)pst.close();
if(conn!=null)conn.close();
}
}
UseBean.java
package exp08.bean;
public class UserBean {
private String id;
private String username;
private String password;
private String realname;
private String sex;
private String telcode;
private String address;
private String cdh;
public String getId() {
return id;
}
public void setId(String id) {
this.id = id;
}
public String getUsername() {
return username;
}
public void setUsername(String name) {
this.username = name;
}
public String getPassword() {
return password;
}
public void setPassword(String password) {
this.password = password;
}
public String getRealname() {
return realname;
}
public void setRealname(String realname) {
this.realname = realname;
}
public String getSex() {
return sex;
}
public void setSex(String sex) {
this.sex = sex;
}
public String getTelcode() {
return telcode;
}
public void setTelcode(String telcode) {
this.telcode = telcode;
}
public String getAddress() {
return address;
}
public void setAddress(String address) {
this.address = address;
}
public String getCdh() {
return cdh;
}
public void setCdh(String cdh) {
this.cdh = cdh;
}
}
PwdBean.java
package exp08.bean;
public class PwdBean {
private String password;
private String newpwd;
private String renewpwd;
public String getNewpwd() {
return newpwd;
}
public void setNewpwd(String newpwd) {
this.newpwd = newpwd;
}
public String getRenewpwd() {
return renewpwd;
}
public void setRenewpwd(String renewpwd) {
this.renewpwd = renewpwd;
}
public String getPassword() {
return password;
}
public void setPassword(String password) {
this.password = password;
}
}
ExpertBean.java
package exp08.bean;
public class ExpertBean {
private String id;
private String name;
private String department;
private String eclass;
private String info;
private String picture;
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 getDepartment() {
return department;
}
public void setDepartment(String department) {
this.department = department;
}
public String getEclass() {
return eclass;
}
public void setEclass(String eclass) {
this.eclass = eclass;
}
public String getInfo() {
return info;
}
public void setInfo(String info) {
this.info = info;
}
public String getPicture() {
return picture;
}
public void setPicture(String picture) {
this.picture = picture;
}
}
UiBean.java
package exp08.bean;
public class UiBean {
private String sid;
private boolean lState;
public String getSid() {
return sid;
}
public void setSid(String sid) {
this.sid = sid;
}
public boolean islState() {
return lState;
}
public void setlState(boolean lState) {
this.lState = lState;
}
}
三、显示专家介绍页面
点击index.html的专家介绍即可跳转到专家介绍页面
这里只是在读取数据库中的专家信息并保存，转发到listexp.jsp中显示
ShowExpert.java
package exp08.servlet;
import java.io.IOException;
import java.sql.Connection;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.util.ArrayList;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import exp08.bean.DBBean;
import exp08.bean.ExpertBean;
/**
* Servlet implementation class ShowExpServlet
*/
public class ShowExpert extends HttpServlet {
private static final long serialVersionUID = 1L;
/**
* @see HttpServlet#doGet(HttpServletRequest request, HttpServletResponse response)
*/
protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
// TODO Auto-generated method stub
String did = request.getParameter("did");
Connection conn = null;
PreparedStatement pst = null;
ResultSet rs = null;
String sql = "";
try {
conn = DBBean.getConn();
if(did==null) {
sql = "select * from expert";
rs = DBBean.getRs(sql,null, conn);
}else {
sql = "select * from expert where left(id,1) = ?";
String[] param = new String[1];
param[0] = did;
rs = DBBean.getRs(sql, param, conn);
}
ArrayList ebeans = new ArrayList();
while(rs.next()) {
ExpertBean ebean = new ExpertBean();
ebean.setId(rs.getString("id"));
ebean.setName(rs.getString("name"));
ebean.setDepartment(rs.getString("department"));
ebean.setEclass(rs.getString("eclass"));
ebean.setInfo(rs.getString("info"));
ebean.setPicture(rs.getString("picture"));
ebeans.add(ebean);
}
request.setAttribute("ebeans", ebeans);
request.getRequestDispatcher("listexp.jsp").forward(request, response);
return;
}catch (ClassNotFoundException | SQLException e) {
e.printStackTrace();
}finally {
try {
DBBean.close(rs, pst, conn);
} catch (SQLException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
}
/**
* @see HttpServlet#doPost(HttpServletRequest request, HttpServletResponse response)
*/
protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
// TODO Auto-generated method stub
doGet(request, response);
}
}
listexp.jsp
<%@ page language="java" contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8"%>
<%@ page import="java.util.ArrayList,exp08.bean.ExpertBean"%>
HIS
<%@ include file="inc/header.html"%>
结果如下，点击姓名即可进入专家个人信息页面
四、信息操作功能（修改信息、注销账号、退出）
登录成功后显示个人信息界面，如下
uinfo.jsp
<%@ page language="java" contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8"%>
<%@ page import="exp08.bean.UserBean" %>
<%
UserBean ubean = null;
if(session.getAttribute("ubean")!=null){
ubean = (UserBean)session.getAttribute("ubean");
}
%>
HIS
<%@ include file="/inc/header.html"%>
点击修改信息，进入edit.jsp
<%@ page language="java" contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8"%>
HIS
<%@ include file="../inc/header.html"%>
页面如下
确认后提交到UpdateServlet
package exp08.servlet;
import java.io.IOException;
import java.io.PrintWriter;
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;
import exp08.bean.DBBean;
import exp08.bean.UserBean;
public class UpdateServlet extends HttpServlet{
private static final long serialVersionUID = 1L;
protected void doGet(HttpServletRequest request,HttpServletResponse response) throws IOException, ServletException {
HttpSession session=request.getSession();
PrintWriter out=response.getWriter();
UserBean ubean = null;
if(session.getAttribute("ubean")!=null){
ubean = (UserBean)session.getAttribute("ubean");
}
if(ubean.getId()==null) {
out.println("");
out.println("");
out.println("");
out.println("");
out.println("用户个人信息 ");
out.println("");
out.println("");
out.println("");
out.println("");
out.println("请先完成登录
");
out.println("");
out.println("");
out.println("/html");
out.flush();
out.close();
return;}
else {
Connection conn = null;
PreparedStatement pst = null;
ResultSet rs = null;
String[] param1 = new String[4];
String cdh="";
param1[0] = request.getParameter("telcode");
param1[1] = request.getParameter("address");
if(request.getParameterValues("cdh")!=null) {
String[] mbs=request.getParameterValues("cdh");
for(int i=0;iUpdateServlet只是修改了数据库，修改完后要重新显示个人信息需要把信息保存到session里在输出，又写了一个UpdateServlet1
package exp08.servlet;
import java.io.IOException;
import java.io.PrintWriter;
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;
import exp08.bean.DBBean;
import exp08.bean.UserBean;
public class UpdateServlet1 extends HttpServlet{
private static final long serialVersionUID = 1L;
protected void doGet(HttpServletRequest request,HttpServletResponse response) throws IOException, ServletException {
HttpSession session=request.getSession();
Connection conn = null;
PreparedStatement pst = null;
ResultSet rs = null;
UserBean ubean = null;
if(session.getAttribute("ubean")!=null){
ubean = (UserBean)session.getAttribute("ubean");
}
String[] param = new String[1];
param[0] = ubean.getId();
String sql="select * from user where id = ?";
try {
conn = DBBean.getConn();
rs=DBBean.getRs(sql, param, conn);
if(rs.next()) {
ubean.setId(rs.getString("id"));
ubean.setUsername(rs.getString("username"));
ubean.setPassword(rs.getString("password"));
ubean.setRealname(rs.getString("realName"));
ubean.setSex(rs.getString("sex"));
ubean.setTelcode(rs.getString("telcode"));
ubean.setAddress(rs.getString("address"));
ubean.setCdh(rs.getString("cdh"));
session.setAttribute("ubean", ubean);
request.getRequestDispatcher("ucenter/uinfo.jsp").forward(request,response);
return;
}
}catch (ClassNotFoundException | SQLException e) {
e.printStackTrace();
}finally {
try {
DBBean.close(rs, pst, conn);
} catch (SQLException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
}
}
到这里修改信息的操作实现了，接下来是修改密码。
pwd.jsp
<%@ page language="java" contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8"%>
HIS
<%@ include file="../inc/header.html"%>
点击修改密码，页面如下：
pwd.jsp
<%@ page language="java" contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8"%>
HIS
<%@ include file="../inc/header.html"%>
修改完后用过滤器进行密码验证
VerificationServlet.java
package exp08.servlet;
import java.io.IOException;
import java.io.PrintWriter;
import java.sql.Connection;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;
import exp08.bean.DBBean;
import exp08.bean.UserBean;
import exp08.bean.PwdBean;
public class VerificationServlet extends HttpServlet{
private static final long serialVersionUID = 1L;
protected void doGet(HttpServletRequest request,HttpServletResponse response) throws IOException, ServletException {
HttpSession session=request.getSession();
UserBean ubean = null;
if(session.getAttribute("ubean")!=null){
ubean = (UserBean)session.getAttribute("ubean");
}
if(ubean==null) {
session.setAttribute("msg", "您还未登录，请先登录！");
if(session.getAttribute("ui")!=null) session.removeAttribute("ui");
if(session.getAttribute("ubean")!=null) session.removeAttribute("ubean");
response.sendRedirect("login.jsp");
return;}
else {
PwdBean pbean = new PwdBean();
String newpwd = request.getParameter("newpwd");
String renewpwd = request.getParameter("renewpwd");
pbean.setNewpwd(newpwd);
pbean.setRenewpwd(renewpwd);
session.setAttribute("pbean", pbean);
request.getRequestDispatcher("UpdatepwdServlet").forward(request,response);
return;
}
}
}
UpdatepwdServlet.java
package exp08.servlet;
import java.io.IOException;
import java.io.PrintWriter;
import java.sql.Connection;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;
import exp08.bean.DBBean;
import exp08.bean.UserBean;
import exp08.bean.PwdBean;
public class UpdatepwdServlet extends HttpServlet{
private static final long serialVersionUID = 1L;
protected void doGet(HttpServletRequest request,HttpServletResponse response) throws IOException, ServletException {
HttpSession session=request.getSession();
UserBean ubean = null;
if(session.getAttribute("ubean")!=null){
ubean = (UserBean)session.getAttribute("ubean");
}
if(ubean==null) {
session.setAttribute("msg", "您还未登录，请先登录！");
if(session.getAttribute("ui")!=null) session.removeAttribute("ui");
if(session.getAttribute("ubean")!=null) session.removeAttribute("ubean");
response.sendRedirect("login.jsp");
return;}
else {
PwdBean pbean = (PwdBean)session.getAttribute("pbean");
Connection conn = null;
PreparedStatement pst = null;
ResultSet rs = null;
String newpwd = pbean.getNewpwd();
String[] param1 = new String[2];
param1[0] = newpwd;
param1[1] = ubean.getId();
String sql = "update user set password = ? where id = ?";
try {
conn = DBBean.getConn();
DBBean.getRss(sql, param1, conn);
session.setAttribute("pbean", pbean);
request.getRequestDispatcher("UpdateServlet1").forward(request,response);
return;
}catch (ClassNotFoundException | SQLException e) {
e.printStackTrace();
}finally {
try {
DBBean.close(rs, pst, conn);
} catch (SQLException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
}
}}
之后即可跳转到个人信息页面，到这里修改密码操作完成。接下来是注销账户操作，就是把数据库里的用户信息删除。
QuitServlet.java
package exp08.servlet;
import java.io.IOException;
import java.io.PrintWriter;
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;
import exp08.bean.DBBean;
import exp08.bean.UserBean;
public class QuitServlet extends HttpServlet{
/**
*
*/
private static final long serialVersionUID = 1L;
protected void doGet(HttpServletRequest request,HttpServletResponse response) throws IOException, ServletException {
PrintWriter out=response.getWriter();
HttpSession session=request.getSession();
UserBean ubean = null;
if(session.getAttribute("ubean")!=null){
ubean = (UserBean)session.getAttribute("ubean");
}
if(ubean==null) {
out.println("");
out.println("");
out.println("");
out.println("");
out.println("用户个人信息 ");
out.println("");
out.println("");
out.println("");
out.println("");
out.println("请先完成登录
");
out.println("");
out.println("");
out.println("/html");
out.flush();
out.close();
return;
}else {
Connection conn = null;
PreparedStatement pst = null;
ResultSet rs = null;
String[] param1 = new String[1];
param1[0]=ubean.getId();
String sql="delete from user where id = ?";
try {
conn = DBBean.getConn();
DBBean.getRss(sql, param1, conn);
request.getRequestDispatcher("LogoutServlet").forward(request,response);
return;
}catch (ClassNotFoundException | SQLException e) {
e.printStackTrace();
}finally {
try {
DBBean.close(rs, pst, conn);
} catch (SQLException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
}
}}
然后是退出操作
LogoutServlet.java
package exp08.servlet;
import java.io.IOException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
public class LogoutServlet extends HttpServlet{
private static final long serialVersionUID = 1L;
protected void doGet(HttpServletRequest request,HttpServletResponse response) throws IOException {
request.getSession().invalidate();
response.sendRedirect("index.jsp");
return;
}
protected void doPost(HttpServletRequest request,HttpServletResponse response) throws IOException {
doGet(request,response);
}
}
五、过滤器
分别有三个过滤器，分别是乱码过滤、登录过滤、密码验证过滤，登录过滤是为了防止用户不登录直接跳转到网页，密码验证过滤是为了使修改密码不为空且两次密码相同。
EncodingFilter.java
package exp10.filter;
import java.io.IOException;
import javax.servlet.Filter;
import javax.servlet.FilterChain;
import javax.servlet.FilterConfig;
import javax.servlet.ServletException;
import javax.servlet.ServletRequest;
import javax.servlet.ServletResponse;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
public class EncodingFilter implements Filter {
private String charSet;
public void init(FilterConfig config) throws ServletException {
this.charSet=config.getServletContext().getInitParameter("charSet");
}
public void destroy() {}
public void doFilter(ServletRequest req, ServletResponse res,FilterChain chain) throws IOException, ServletException {
HttpServletRequest request=(HttpServletRequest)req;
HttpServletResponse response=(HttpServletResponse)res;
request.setCharacterEncoding(charSet);
if (!((HttpServletRequest) request).getServletPath().contains("css")) {
response.setContentType("text/html; charset=" + charSet);
}
chain.doFilter(request, response);
}
} LoginFilter.java
package exp10.filter;
import java.io.IOException;
import javax.servlet.Filter;
import javax.servlet.FilterChain;
import javax.servlet.FilterConfig;
import javax.servlet.ServletException;
import javax.servlet.ServletRequest;
import javax.servlet.ServletResponse;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;
import exp08.bean.UiBean;
public class LoginFilter implements Filter{
@Override
public void init(FilterConfig filterConfig) throws ServletException {
// TODO Auto-generated method stub
}
@Override
public void doFilter(ServletRequest req, ServletResponse res,FilterChain chain) throws IOException, ServletException {
HttpServletRequest request=(HttpServletRequest)req;
HttpServletResponse response=(HttpServletResponse)res;
HttpSession session=request.getSession();
UiBean ui=(UiBean)session.getAttribute("ui");
if(ui!=null&&ui.islState()==true&&ui.getSid()==session.getId()){
chain.doFilter(req, res);
}else{
if(session.getAttribute("msg")==null) session.setAttribute("msg", "你还没有登录，请登录后再访问用户中心");
if(session.getAttribute("ui")!=null) session.removeAttribute("ui");
if(session.getAttribute("ubean")!=null) session.removeAttribute("ubean");
response.sendRedirect(req.getServletContext().getContextPath()+"/login.jsp");
return;
}
}
@Override
public void destroy() {
// TODO Auto-generated method stub
}
}
PwdFilter.java
package exp10.filter;
import java.io.IOException;
import javax.servlet.Filter;
import javax.servlet.FilterChain;
import javax.servlet.FilterConfig;
import javax.servlet.ServletException;
import javax.servlet.ServletRequest;
import javax.servlet.ServletResponse;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;
import exp08.bean.PwdBean;
import exp08.bean.UiBean;
import exp08.servlet.VerificationServlet;
public class PwdFilter implements Filter{
@Override
public void init(FilterConfig filterConfig) throws ServletException {
// TODO Auto-generated method stub
}
@Override
public void doFilter(ServletRequest req, ServletResponse res,FilterChain chain) throws IOException, ServletException {
HttpServletRequest request=(HttpServletRequest)req;
HttpServletResponse response=(HttpServletResponse)res;
HttpSession session=request.getSession();
PwdBean pbean=(PwdBean)session.getAttribute("pbean");
UiBean ui=(UiBean)session.getAttribute("ui");
if(!(pbean.getNewpwd().equals(""))&&pbean.getNewpwd().equals(pbean.getRenewpwd())&&ui.getSid()==session.getId()){
chain.doFilter(req, res);
}else{
session.setAttribute("msg", "两次输入的密码不相同，请重新输入!");
response.sendRedirect(req.getServletContext().getContextPath()+"/ucenter/pwd.jsp");
return;
}
}
@Override
public void destroy() {
// TODO Auto-generated method stub
}
}
六、css
style1.css
@charset "UTF-8";
/*IE浏览器默认的盒子属性值。*/
* {
box-sizing: border-box;
}
body {
margin: 0;
}
.header {
text-align: left;
padding: 2px;
}
/*搜索框*/
.header input {
position: relative;
left: 250px;
bottom: 20px;
}
/*放大镜图片*/
.search {
position: absolute;
left: 1050px;
top: 45px;
}
/* “英文版”图片 */
.English {
position: absolute;
left: 1200px;
top: 50px;
}
.topmenu {
color: white;
background-color: #777;
font-size: 25px;
}
.topmenu img {
width:45px;
height:39px;
vertical-align:middle;
border: solid thin #777;
}
.topmenu table{text-align: center;
width:100%;}
/*以下四句是实验三所做修改*/
.topmenu table td.l {
width: 20%;
}
.topmenu table td.m {
width:60%;
}
.topmenu table td.r {
width:20%;
background-color: white;
}
#time {
font-weight:bolder;
font-size:x-large;
}
.topmenu table a {
vertical-align:middle;
font-size:14px;
text-decoration: none;}
.sidemenu {
display:block;
word-break:keep-all;/* 不换行 */
white-space:nowrap;/* 不换行 */
width: 25%;
}
/*消除列表前面的点*/
.sidemenu ul {
list-style-type: none;
text-align:center;
}
.sidemenu ul li {
position: relative;
background-color:gray;
}
/*刷新自己显示标题*/
.sidemenu ul li ul {
position:absolute;
left:145px;
margin-top:-41px;
margin-left: 150px;
width:150px;
display:none;
}
.sidemenu ul li ul li {margin:0;}
.sidemenu ul li ul li a {
background-color: #f7f7f7;
border-left: #dfdfdf 2px solid;
border-right: #dfdfdf 2px solid;
}
/*跳转按钮属性（这里把a标签设置成块元素，有宽、高和内外边距）*/
.sidemenu li a {
margin-bottom: 4px;
display: block;
padding: 8px;
background-color: #eee;
text-decoration: none;
color: #666;
}
/*鼠标放在a标签上会发上变化*/
.sidemenu li a:hover {
background-color: #555;
color: white;
}
/*消除漂浮带来的位置影响*/
.clearfix::after {
content: "";
clear: both;
display: table;
}
/*派生选择器控制目录+文字，使其漂浮*/
.column {
float: left;
padding: 5px;
}
/*最底部版权栏*/
.footer {
background-color: #444;
color: white;
text-align:center;
padding: 15px;
}main.css
@charset "UTF-8";
* {
box-sizing: border-box;
}
body {
text-align:center;
margin: 0;
}
.header {
background-color: white;
background-image:url("../images/logo.jpg");
background-repeat:no-repeat;
text-align: right;
height: 68px;
}
.footer {
background-color: #444;
color: white;
padding: 10px;
text-align: center;
}
.footer p {
text-align: center;
font-size:14px;}
.top {
color: white;
background-color: #777;
font-size: 25px;
}
.top img {width:45px;
height:39px;
vertical-align:middle;
border: solid thin #777;
}
.top table{text-align: center;
width:100%;}
/*以下四句是实验三所做修改*/
.top table td.l {width: 20%;
background-color: white;}
.top table td.m {width:60%;}
.top table td.r {
width:20%;
background-color: white;}
#time {font-size:14px;
color:black;}
.top table a {
vertical-align:middle;
font-size:14px;
text-decoration: none;}
.column {
float: left;
padding: 15px;
}
.clearfix::after {
content: "";
clear: both;
display: table;
}
.sidemenu {
display:block;
word-break:keep-all;/* 不换行 */
white-space:nowrap;/* 不换行 */
width: 15%;
}
.content {
width: 70%;
}
.content img{
width:400px;
height:300px;
float:right;
margin:0 10px 10px 10px;
}
.content p{
width:80%;
text-indent: 2em;
}
.sidemenu ul {
list-style-type: none;
margin: 0;
padding: 0;
width:150px;
}
.sidemenu ul li {
position: relative;
}
.sidemenu ul li ul {
position: absolute;
margin-top:-41px;
margin-left: 150px;
width:150px;
display:none;
}
.sidemenu ul li ul li {margin:0;}
.sidemenu ul li ul li a {
background-color: #f7f7f7;
border-left: #dfdfdf 2px solid;
border-right: #dfdfdf 2px solid;
}
.sidemenu li a {
margin-bottom: 4px;
display: block;
padding: 8px;
text-decoration: none;
color:black;
}
.sidemenu li a:hover {
color:red;
}
#sdiv {
width:500px;
height:30px;
position: absolute;
top:19px;
left:700px;
}
#search {width:30px;
height:30px;
vertical-align:middle;}
#sbutton {
height:30px;
margin-left: 50px;
vertical-align:middle;}
#sinput {height:30px;
vertical-align:middle;
}one.css
@charset "UTF-8";
.content {
margin:0 auto;
width:80%;
}
.content table{
border-collapse: collapse;
text-align:center;
}
.content table tr {
border-bottom: solid thin black;
}
.content table img {
width:70px;
height:90px;
}
.content table tr td.d1{
width:10%;
}
.content table tr td.d2{
width:50%;
}
.content table tr td.info{
text-align:left;
text-indent:2em;
}
reg.css
@charset "UTF-8";
/*注册*/
.content {margin:0 auto;width:70%;
text-align:center;
padding: 20px 0;}
.content div {
border:solid thin red;
margin:0 auto;
padding:5px; }
.reg {
font-size: 16px;
line-height: 35px;
text-align:left;
}
.reg input[type="text"], .reg input[type="password"] {
border: 1px solid #ccc;
padding: 5px;
color: #999;
}
.reg select {
padding: 5px;
height: 30px;
margin-right: 5px;
color: #999;
}
.reg textarea {
color: #999;
}
.gray12 {
font-size: 12px;
color: #999;
}
.bian {
margin-top: 10px;
}
.bian:hover {
filter: alpha(opacity=50); /*IE滤镜，透明度50%*/
-moz-opacity: 0.5; /*Firefox私有，透明度50%*/
opacity: 0.5;/*其他，透明度50%*/
}