写在最前：
下午有招聘会，不想去，总觉得没有准备好，而且都是一些不对口的公司，可是又静不下心来，就来写个博客。
最近在仿造一个书城的网站：http://www.yousuu.com ,UI直接拿来用，前端后端自己写，目前大部分功能已经实现，
就把具体的登录注册功能拿来分享一下。PS：又写登录注册会不会被人喷啊=。=
一、开发环境的部署
程序结构：
BootStrap+Ajax+Struts2+Hibernate+MySql
仅供参考：能实现相关功能即可
操作系统：ubuntu 14.10
前端框架：BootStrap 注：此框架只是为了实现用户界面，和具体功能无关
数据库：mysql-5.5 数据库工具：emma
服务器：tomcat 服务器工具：Myeclipse 10（已配置好Struts2和Hibernate环境）
注意：
程序调试过程可能会产生乱码，只需保持所有工具编码方式相同即可。
二、项目文件配置
1、新建Web Project，命名为ROOT
2、配置/WebRoot/WEB-INF/web.xml
<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns="http://java.sun.com/xml/ns/javaee"
xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd"
id="WebApp_ID" version="3.0">
<display-name>ROOT</display-name>
<filter>
<filter-name>struts2</filter-name>
<filter-class>
org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter
</filter-class>
</filter>
<filter-mapping>
<filter-name>struts2</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>
<error-page>
<error-code>404</error-code>
<location>/error.jsp</location>
</error-page>
<error-page>
<error-code>500</error-code>
<location>/error.jsp</location>
</error-page>
<welcome-file-list>
<welcome-file>index.html</welcome-file>
<welcome-file>index.htm</welcome-file>
<welcome-file>index.jsp</welcome-file>
<welcome-file>default.html</welcome-file>
<welcome-file>default.htm</welcome-file>
<welcome-file>default.jsp</welcome-file>
</welcome-file-list>
</web-app>
3 、配置/src/struts.xml（struts配置文件），其他的action和interceptor被我删了，这点够用了。
<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE struts PUBLIC "-//Apache Software Foundation//DTD Struts Configuration 2.1//EN" "http://struts.apache.org/dtds/struts-2.1.dtd">
<struts>
<package name="default" namespace="/" extends="struts-default">
<!-- 登录 -->
<action name="login" class="com.action.Login" method="login"></action>
<!-- 登出 -->
<action name="logout" class="com.action.Logout" method="logout"></action>
<!-- 注册 -->
<action name="register" class="com.action.Register" method="register"></action> <!-- 邮件发送 -->
<action name="sendmail" class="com.action.SendMail" method="sendmail"></action>
</package>
</struts>
4、配置/src/hibernate.cfg.xml（hibernate数据库配置文件），注意倒数第4行有个<mapping />是没有的需要自己创建，将在下一步配置
<?xml version='1.0' encoding='UTF-8'?>
<!DOCTYPE hibernate-configuration PUBLIC
"-//Hibernate/Hibernate Configuration DTD 3.0//EN"
"http://www.hibernate.org/dtd/hibernate-configuration-3.0.dtd">
<!-- Generated by MyEclipse Hibernate Tools. -->
<hibernate-configuration>
<session-factory>
<property name="myeclipse.connection.profile">Myeclipse Mysql</property> <!--指明JDBC路径、指明数据库名称-->
<property name="connection.url">jdbc:mysql://localhost:3306/test</property> <!--指明数据库账户和密码-->
<property name="connection.username">root</property>
<property name="connection.password">root</property> <!--指明JDBC驱动-->
<property name="connection.driver_class">com.mysql.jdbc.Driver</property> <!--指明mysql方言-->
<property name="dialect">org.hibernate.dialect.MySQLDialect</property>
<property name="hibernate.current_session_context_class">thread</property>
<property name="hibernate.dialect">org.hibernate.dialect.MySQLDialect</property>
<property name="show_sql">true</property>
<property name="format_sql">true</property>
<mapping resource="com/hibernate/bookchat.hbm.xml" />
</session-factory>
</hibernate-configuration>
5、/src下创建com.hibernate包，在该包下创建bookchat.hbm.xml（hibernate对象关系映射文件），并配置
注意<class name="com.hibernate.User" />中的这个User类是自定义的数据库对象类（pojo），将在下一步配置
<?xml version="1.0"?>
<!DOCTYPE hibernate-mapping PUBLIC "-//Hibernate/Hibernate Mapping DTD 3.0//EN" "http://hibernate.sourceforge.net/hibernate-mapping-3.0.dtd">
<hibernate-mapping> <!--指明Bean类名，指明数据库表名-->
<class name="com.hibernate.User" table="user">
<id column="id" type="int">
<generator class="native" />
</id> <!--指明数据库字段名、字段类型-->
<property name="user_id" column="user_id" type="int" />
<property name="phone" column="phone" type="int" />
<property name="email" column="email" type="string" />
<property name="username" column="username" type="string" />
<property name="password" column="password" type="string" />
<property name="icon" column="icon" type="string" />
<property name="description" column="description" type="string" />
<property name="followThreadNum" column="followThreadNum" type="int" />
<property name="followPeopleNum" column="followPeopleNum" type="int" />
<property name="fansNum" column="fansNum" type="int" />
<property name="haveMsg" column="haveMsg" type="int" />
</class>
</hibernate-mapping>
6、/src下的com.hibernate包下创建User类
package com.hibernate;
public class User {
private int user_id; //对应数据库中user_id
private int phone; //手机号
private String email; //邮件
private String username; //用户名
private String password; //密码
private String icon; //用户头像
private String description; //自定义描述
private int followThreadNum; //关注书单数量
private int followPeopleNum; //关注的人数量
private int fansNum; //粉丝数量
private int haveMsg; //当前是否有新消息
public User() {
super();
}
//这个构造方法在注册时有用
public User(String email, String username, String password) {
// 用户内容：username,password,email
// 系统定义：user_id,icon,followThreadNum,followPeopleNum,fansNum,haveMsg
// 留空:phone,description,
this.user_id = 39212;
// this.phone = phone;
this.email = email;
this.username = username;
this.password = password;
this.icon = "images/icon.png";
// this.description = description;
this.followThreadNum = 0;
this.followPeopleNum = 0;
this.fansNum = 0;
this.haveMsg = 0;
}
public int getUser_id() {
return user_id;
}
public void setUser_id(int user_id) {
this.user_id = user_id;
}
public int getPhone() {
return phone;
}
public void setPhone(int phone) {
this.phone = phone;
}
public String getEmail() {
return email;
}
public void setEmail(String email) {
this.email = email;
}
public String getUsername() {
return username;
}
public void setUsername(String username) {
this.username = username;
}
public String getPassword() {
return password;
}
public void setPassword(String password) {
this.password = password;
}
public String getIcon() {
return icon;
}
public void setIcon(String icon) {
this.icon = icon;
}
public String getDescription() {
return description;
}
public void setDescription(String description) {
this.description = description;
}
public int getFollowThreadNum() {
return followThreadNum;
}
public void setFollowThreadNum(int followThreadNum) {
this.followThreadNum = followThreadNum;
}
public int getFollowPeopleNum() {
return followPeopleNum;
}
public void setFollowPeopleNum(int followPeopleNum) {
this.followPeopleNum = followPeopleNum;
}
public int getFansNum() {
return fansNum;
}
public void setFansNum(int fansNum) {
this.fansNum = fansNum;
}
public int getHaveMsg() {
return haveMsg;
}
public void setHaveMsg(int haveMsg) {
this.haveMsg = haveMsg;
}
}
7、/src下的com.db包下创建CreateTable类，之后Run as - Java Application，查看控制台是否输出了sql语句
package com.db;
import org.hibernate.cfg.Configuration;
import org.hibernate.tool.hbm2ddl.SchemaExport;
public class CREATTABLEDONOT {
public static void main(String[] args) {
// 默认读取hibernate.cfg.xml文件
Configuration cfg = new Configuration().configure();
SchemaExport export = new SchemaExport(cfg);
export.create(true, true);
}
}
三、检查数据库
1、打开数据库GUI工具，查看test数据库下是否有一个user表，若能打开user表说明之前配置成功。
2、编辑user表：设置字段默认值，可以向表中添加数据。
四、网页UI设计
1、我们在struts.xml文件配置中已经埋下伏笔：
<action name="login" class="com.action.Login" method="login"></action> <action name="logout" class="com.action.Logout" method="logout"></action> <action name="register" class="com.action.Register" method="register"></action><action name="sendmail" class="com.action.SendMail" method="sendmail"></action>
我们可以在网页中请求/login,/logout,/register来访问这三个Action处理类，当然这三个类具体的内容我们还没写，先放着。
2、现在开始思考网页设计需要什么东西...
<1> 首页提供登陆和注册链接
<2> 登陆弹出框和注册页面
<3> 登陆/注册成功，登陆和注册消失，显示用户名和退出登陆
<4> 我们想达到的效果：登陆/注册成功后显示用户名，登陆失败后动态提示错误详情！
五、JQuery+Ajax设计
1、主要的JQuery和Ajax代码
(function(window, $) {
var SOKK = {};
ys.common = SOKK;
//邮箱验证
SOKK.sendmail = function(){
var email = $("#inputEmail").val().trim();
if(!checkEmail(email)){
return false;
}
//发送请求
$.get("/sendmail","email="+email,function(data){
data = JSON.parse(data);
tip(data.code);
})
}
//注册
SOKK.signup = function(form){
var form = $(form);
//成功方可继续执行
if(!checkSignUp(form.find("input")))
return false;
//序列化表单，生成JSON对象
var JStr =form.serialize();
// var JStr = JSON.stringify(JForm);
tip(JStr);
$.post("/register",JStr,function(data){
data = JSON.parse(data);
if (data.code == 200) {
location.reload(); //如何跳转到首页？
} else {
tip(data.code);
}
})
};
// 登录
SOKK.login = function(form) {
var form = $(form);
var input = form.find("input");
var username=$.trim(input[0].value);
var password=$.trim(input[1].value);
if(checkLogin(username,password)){
return false;
}
var dataParam = {};
dataParam.username = username;
dataParam.password = password;
// 这里的dataParam是键值对，但服务器获取的时候是?username=xx&password=xx;
// 如果使用json传输那么就不能用这种方式而必须用$.ajax，而且json在服务器端还要再解析，
// 所以在发送请求时，不建议使用json。接受数据可以使用json
$.post("/login", dataParam, function(data) {
// json字符串->json对象
data = JSON.parse(data);
if (data.code == 200) {
location.reload();
} else {
tip(data.code);
}
})
};
//登出
SOKK.logout = function(){
$.get("/logout", function (data) {
//json字符串->json对象
data = JSON.parse(data);
if (data.code==200){
location.reload();
}
})
};
})(window, $)
2、自定义工具代码
// 自定义提示
function tip(info){
if(isNaN(info)){
toastr.info(info);
}else{
var msg;
if(info<300){
switch(info){
case 100: msg="加入书架成功！"; break;
case 101: msg="关注本书成功！"; break;
case 102: msg="已移动到【正在看】！"; break;
case 103: msg="已移动到【准备看】！"; break;
case 104: msg="已移动到【已看完】！"; break;
case 105: msg="已移动到【回收站】！"; break;
case 110: msg="验证邮件已发送到你的邮箱！";break;
case 200: msg="请求成功！"; break;
case 202: msg="请求已接受，但尚未处理。"; break;
case 204: msg="请求成功，但无返回内容。"; break;
default : break;
}
toastr.success(msg);
}else if(info<1000){
switch(info){
case 301: msg="请求网页的位置发生改变！"; break;
case 400: msg="错误请求，请输入正确信息！"; break;
case 401: msg="非法请求，未授权进入此页面！"; break;
case 403: msg="拒绝请求！"; break;
case 404: msg="请求页面不存在！"; break;
case 408: msg="请求超时！"; break;
case 500: msg="服务器出错！"; break;
case 500: msg="服务不可用！"; break;
case 900: msg="用户名/密码错误，请重新输入"; break;
case 903: msg="服务器出错，请重试！"; break;
case 904: msg="服务器无返回信息！"; break;
case 905: msg="网络出错！"; break;
case 906: msg="注册失败，请重试！";break;
case 907: msg="邮箱验证码错误！";break;
case 908: msg="用户名已存在！";break;
case 909: msg="邮箱已被注册！";break;
case 910: msg="验证邮件发送失败！";break;
default : break;
}
toastr.error(msg);
}else{
toastr.info(info);
}
}
}
//注册检查
function checkSignUp(input){
var username = $.trim(input[0].value);
var password1 = $.trim(input[1].value);
var password2 = $.trim(input[2].value);
var email = $.trim(input[3].value);
var emailcode = $.trim(input[4].value);
for (var i = 0; i < input.length; i++) {
if(input[i].value.length<=0){
tip("所有内容不得为空！");
return false;
}
};
if(username.length<4){
tip("用户名不得少于4个字符！");
return false;
}
if(password1!==password2){
tip("两次输入的密码不同！");
return false;
}
if(password1.length<6){
tip("密码不得少于6个字符！");
return false;
}
return true;
}
function checkLogin(username,password){
if(!username){
tip("请输入用户名！");
return false;
}
if(!password){
tip("请输入密码！");
return false;
}
}
function checkEmail(email){
var reg = /^([a-zA-Z0-9]+[_|\_|\.]?)*[a-zA-Z0-9]+@([a-zA-Z0-9]+[_|\_|\.]?)*[a-zA-Z0-9]+\.[a-zA-Z]{2,3}$/;
if(email){
if(reg.test(email)){
return true;
}else{
tip("邮箱地址不符合规范！");
return false;
}
}else{
tip("邮箱地址不得为空！");
return false;
}
}
3、toastr是一个前端非阻塞的提示插件，可以到http://www.bootcdn.cn/toastr.js/下载使用
六、Action设计
1、Login.java
package com.action;
import javax.servlet.http.HttpServletRequest;
import org.apache.struts2.ServletActionContext;
import com.opensymphony.xwork2.ActionSupport;
import com.service.BaseService;
import com.service.BaseServiceImpl;
import com.util.OperateJSON;
public class Login extends ActionSupport {
private static final long serialVersionUID = 4679952956618457478L;
private String username;
private String password;
public void login() {
HttpServletRequest request = ServletActionContext.getRequest();
BaseService hs = new BaseServiceImpl();
OperateJSON oj = new OperateJSON();
username = request.getParameter("username");
password = request.getParameter("password");
System.out.println("用户名：" + username + "--密码：" + password);
// 登陆返回用户id
Object obj = hs.login(username, password);
if (obj != null) {
System.out.println("用户名密码正确");
request.getSession().setAttribute("username", username);
request.getSession().setAttribute("userid", obj);
System.out.println("用户名" + username + "的Session设置完毕～");
System.out.println("用户id的Session设置完毕～");
oj.putCode(200);
} else {
System.out.println("用户名密码错误");
oj.putCode(900);
}
oj.send();
}
}
2、Logout.java
package com.action;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.apache.struts2.ServletActionContext;
import com.opensymphony.xwork2.ActionSupport;
import com.util.OperateJSON;
public class Logout extends ActionSupport {
private static final long serialVersionUID = -6758897982192371466L;
HttpServletRequest request = ServletActionContext.getRequest();
HttpServletResponse response = ServletActionContext.getResponse();
OperateJSON oj = new OperateJSON();
public void logout() {
request.getSession().removeAttribute("username");
request.getSession().invalidate();
if (request.getSession().getAttribute("username") == null) {
oj.putCode(200);
} else {
oj.putCode(903);
}
oj.send();
}
}
3、Register.java
package com.action;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.apache.struts2.ServletActionContext;
import com.hibernate.User;
import com.opensymphony.xwork2.ActionSupport;
import com.service.BaseService;
import com.service.BaseServiceImpl;
import com.util.OperateJSON;
public class Register extends ActionSupport {
private static final long serialVersionUID = -3356620731966076779L;
HttpServletRequest request = ServletActionContext.getRequest();
HttpServletResponse response = ServletActionContext.getResponse();
BaseService bs = new BaseServiceImpl();
OperateJSON oj = new OperateJSON();
SendMail sm = new SendMail();
public void register() {
String username = request.getParameter("username");
String password1 = request.getParameter("password1");
String password2 = request.getParameter("password2");
String password = (password1.equals(password2) ? password1 : null);
String email = request.getParameter("email");
String emailcode = request.getParameter("emailcode");
// 判断用户输入和生成的邮箱验证码是否相同
if (!(emailcode.equals(sm.getMailCode()))) {
oj.putCode(907);
oj.send();
return;
}
// 检测用户名/邮箱是否唯一
if (!bs.isUnique("User", "username", username)) {
oj.putCode(908);
oj.send();
return;
}
if (!bs.isUnique("User", "email", email)) {
oj.putCode(909);
oj.send();
return;
}
// 构建User对象
User user = new User(email, username, password);
// 建立对象关系映射
Boolean reged = bs.register(user);
if (reged) {
System.out.println("用户注册成功");
request.getSession().setAttribute("username", username);
oj.putCode(200);
} else {
System.out.println("注册失败");
oj.putCode(906);
}
oj.send();
}
}
4、SendMail.java SMTP协议发送邮件的类，使用前需要导入mail的jar包，同时，还要设置开启发件人邮箱的smtp服务
package com.action;
import java.util.Date;
import java.util.Properties;
import javax.mail.BodyPart;
import javax.mail.Message;
import javax.mail.MessagingException;
import javax.mail.Multipart;
import javax.mail.Session;
import javax.mail.Transport;
import javax.mail.internet.InternetAddress;
import javax.mail.internet.MimeBodyPart;
import javax.mail.internet.MimeMessage;
import javax.mail.internet.MimeMultipart;
import javax.servlet.http.HttpServletRequest;
import org.apache.struts2.ServletActionContext;
import com.opensymphony.xwork2.ActionSupport;
import com.util.OperateJSON;
public class SendMail extends ActionSupport {
private static final long serialVersionUID = -4724909293302616101L;
private static String QQ = "39210"; // qq
private static String HOST = "qq.com"; // SMTP服务器主机名
private static String PASS = "xxxxxxxx"; // SMTP服务器密码
private static String mailCode; // 邮件验证码
OperateJSON oj = new OperateJSON();
public void sendmail() {
HttpServletRequest request = ServletActionContext.getRequest();
String email = request.getParameter("email");
System.out.println(email);
String mailCode = SendMail.setMailCode();
try {
beginSend(email, mailCode);
oj.putCode(110);
} catch (MessagingException e) {
oj.putCode(910);
} finally {
oj.send();
}
}
public static String setMailCode() {
mailCode = 100000 + (int) (Math.random() * 900000) + "BC";
System.out.println(mailCode);
return mailCode;
}
public String getMailCode() {
return SendMail.mailCode;
}
public void beginSend(String email, String mailCode)
throws MessagingException {
String mailTo = email; // 收件方mail地址
String mailTitle = "欢迎您使用书聊网！ 立即激活您的账户";
String mailContent = "<p>尊敬的用户：</p><p>你好！立即激活您的账户，和书聊网会员一起看书交流。要激活您的账户，只需复制下面的验证码到注册页面确认。 </p>"
+ mailCode + "<p>版权所有© 1999 - 2015 BookChat。保留所有权利。</p>";
// 设置主要信息
Properties props = new Properties();
props.put("mail.smtp.host", "smtp." + HOST);
props.put("mail.smtp.auth", "true");
Session session = Session.getInstance(props);
session.setDebug(true);
// 开启邮件对象
MimeMessage message = new MimeMessage(session);
// 设置发件人/收件人/主题/发信时间
InternetAddress from = new InternetAddress(QQ + "@" + HOST);
message.setFrom(from);
InternetAddress to = new InternetAddress(mailTo);
message.setRecipient(Message.RecipientType.TO, to);
message.setSubject(mailTitle);
message.setSentDate(new Date());
// 设置消息对象内容
BodyPart mdp = new MimeBodyPart();// 新建一个存放信件内容的BodyPart对象
mdp.setContent(mailContent, "text/html;charset=utf-8");// 给BodyPart对象设置内容和格式/编码方式
Multipart mm = new MimeMultipart();// 新建一个MimeMultipart对象用来存放BodyPart对象(事实上可以存放多个)
mm.addBodyPart(mdp);// 将BodyPart加入到MimeMultipart对象中(可以加入多个BodyPart)
message.setContent(mm);// 把mm作为消息对象的内容
message.saveChanges();
// 开启传输对象
Transport transport = session.getTransport("smtp");
transport.connect("smtp." + HOST, QQ, PASS); // 这里的115798090也要修改为您的QQ号码
transport.sendMessage(message, message.getAllRecipients());
transport.close();
}
}
5、OpreateJSON
package com.util;
import java.io.IOException;
import java.io.PrintWriter;
import org.apache.struts2.ServletActionContext;
import net.sf.json.JSONObject;
public class OperateJSON {
JSONObject json;
public OperateJSON() {
json = new JSONObject();
json.put("code", "");
json.put("msg", "");
json.put("data", "");
}
public OperateJSON(String str) {
json = JSONObject.fromObject(str);
}
public void put(String key, Object value) {
json.remove(key);
json.put(key, value);
}
public void putCode(Object value) {
json.remove("code");
this.put("code", value);
}
public void putMsg(Object value) {
json.remove("msg");
this.put("msg", value);
}
public void remove(String key) {
json.remove(key);
}
public void send() {
System.out.println("----------返回的数据是：" + json);
try {
PrintWriter out = ServletActionContext.getResponse().getWriter();
out.print(json);
out.flush();
} catch (IOException e) {
e.printStackTrace();
}
}
}
七、Hibernate Dao设计
这块都是一些操作数据库的内容，大家都有自己的风格，仔细一点写就好了。代码太乱，我就不放出来吓人了-.-! 。
八、总结
开始想展示下结果的还是算了，也就那么回事。一个小例子，瑕疵难免，还望大神们指正。
写完了，心情好多了，招聘会去看看也好，找不找工作不重要，重要的是我走在正确的路上，只有依靠自己才是强者...
如有问题欢迎给我留言 ！！