基于struts2和hibernate实现登录和注册功能
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2024-02-19 11:36:10
本文实例为大家分享了struts2和hibernate实现登录和注册功能，供大家参考，具体内容如下
1、该项目使用mysql数据库，数据库名为test，表名info，...
本文实例为大家分享了struts2和hibernate实现登录和注册功能，供大家参考，具体内容如下
1、该项目使用mysql数据库，数据库名为test，表名info，如图所示：
2、配置web.xml（struts2使用）
<?xml version="1.0" encoding="utf-8"?>
<web-app version="2.5"
xmlns="http://java.sun.com/xml/ns/javaee"
xmlns:xsi="http://www.w3.org/2001/xmlschema-instance"
xsi:schemalocation="http://java.sun.com/xml/ns/javaee
http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd">
<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>
<welcome-file-list>
<welcome-file>index.jsp</welcome-file>
</welcome-file-list>
</web-app>
3、编写视图组件（jsp页面）
(1)登录页面login.jsp
<%@ page language="java" contenttype="text/html; charset=utf-8"
pageencoding="utf-8"%>
<%@ taglib prefix="s" uri="/struts-tags" %>
<html>
<head>
<meta http-equiv="content-type" content="text/html; charset=utf-8">
<title><s:text name="基于sh的登录注册系统" /></title>
</head>
<body bgcolor="#ccccff">
<s:form action="login" method="post">
<br><br><br><br><br><br>
<table border="1" align="center" bgcolor="aabbccdd">
<tr>
<td>
<s:textfield name="username" label="用户名字" size="16" />
</td>
</tr>
<tr>
<td>
<s:password name="password" label="用户密码" size="18" />
</td>
</tr>
<tr>
<td colspan="2" align="center">
<s:submit value="登录" />
</td>
</tr>
<tr>
<td colspan="2" align="center">
<s:a href="http://localhost:8080/hibernate01/register.jsp">注册</s:a>
</td>
</tr>
</table>
</s:form>
</body>
</html>
(2)登陆成功页面success.jsp
<%@ page language="java" contenttype="text/html; charset=utf-8"
pageencoding="utf-8"%>
<%@ taglib prefix="s" uri="/struts-tags" %>
<!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>insert title here</title>
</head>
<body bgcolor="#ccccff">
<hr>
<table>
<tr>
<td>
欢迎<s:property value="username"/>,登陆成功！
</td>
</tr>
</table>
<hr>
</body>
</html>
(3)注册页面register.jsp
<%@ page language="java" contenttype="text/html; charset=utf-8"
pageencoding="utf-8"%>
<%@ taglib prefix="s" uri="/struts-tags" %>
<html>
<head>
<meta http-equiv="content-type" content="text/html; charset=utf-8">
<title>insert title here</title>
</head>
<body bgcolor="#ccccff">
<s:form action="register" method="post">
<br><br><br><br><br><br>
<table border="1" align="center" bgcolor="aabbccdd">
<tr>
<td>
<s:textfield name="username" label="用户名字" size="16" />
</td>
</tr>
<tr>
<td>
<s:password name="password1" label="用户密码" size="18" />
</td>
</tr>
<tr>
<td>
<s:password name="password2" label="再次输入密码" size="18" />
</td>
</tr>
<tr>
<td colspan="2" align="center">
<input type="submit" value="提交" />
<input type="reset" value="清空" />
</td>
</tr>
<tr>
<td colspan="2" align="center">
<s:a href="http://localhost:8080/hibernate01/login.jsp">返回</s:a>
</td>
</tr>
</table>
</s:form>
</body>
</html>
4、业务控制器action
(1)登录页面对应的业务控制器loginaction.java
其中，重写valiadate()方法，进行手工验证
package loginregisteraction;
import java.util.list;
import loginregisterdao.loginregisterinfo;
import po.userinfopo;
import com.opensymphony.xwork2.actionsupport;
public class loginaction extends actionsupport{
private string username;
private string password;
private string message="error";
private list list;
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 void validate(){
if(this.getusername()==null||this.getusername().length()==0){
addfielderror("username", "用户名不能为空!");
}else{
loginregisterinfo info= new loginregisterinfo();
list=info.queryinfo("username", this.getusername());
if(list.size()==0){
addfielderror("username", "该用户尚未注册");
}else{
userinfopo ui=new userinfopo();
for(int i=0;i<list.size();i++){
ui=(userinfopo) list.get(i);
if(this.getusername().equals(ui.getusername())){
if(ui.getpassword().equals(this.getpassword())){
message=success;
}else{
addfielderror("password", "登录密码不正确");
}
}
}
}
}
}
public string execute() throws exception{
return message;
}
}
(2)注册页面对应的业务控制器registeraction.java
package loginregisteraction;
import java.util.list;
import loginregisterdao.loginregisterinfo;
import po.userinfopo;
import com.opensymphony.xwork2.actionsupport;
public class registeraction extends actionsupport {
private string username;
private string password1;
private string password2;
private string mess=error; //error等同于"error"
private list list;
public string getusername() {
return username;
}
public void setusername(string username) {
this.username = username;
}
public string getpassword1() {
return password1;
}
public void setpassword1(string password1) {
this.password1 = password1;
}
public string getpassword2() {
return password2;
}
public void setpassword2(string password2) {
this.password2 = password2;
}
public void validate(){
if(this.getusername()==null||this.getusername().length()==0){
addfielderror("username", "用户名不能为空！");
}else{
loginregisterinfo info= new loginregisterinfo();
list=info.queryinfo("username", this.getusername());
userinfopo ui=new userinfopo();
for(int i=0;i<list.size();i++){
ui=(userinfopo) list.get(i);
if(ui.getusername().equals(this.getusername())){
addfielderror("username", "用户名已存在！");
}
}
}
if(this.getpassword1()==null||this.getpassword1().length()==0){
addfielderror("password1", "登录密码不许为空！");
}else if(this.getpassword2()==null||this.getpassword2().length()==0){
addfielderror("password2", "重复密码不许为空！");
}else if(!this.getpassword1().equals(this.getpassword2())){
addfielderror("password2", "两次密码不一致！");
}
}
public userinfopo userinfo(){
userinfopo info=new userinfopo();
info.setusername(this.getusername());
info.setpassword(this.getpassword1());
return info;
}
public string execute() throws exception{
loginregisterinfo lr=new loginregisterinfo();
string ri=lr.saveinfo(userinfo());
if(ri.equals("success")){
mess=success;
}
return mess;
}
}
5、在struts.xml中配置action
<!doctype struts public
"-//apache software foundation//dtd struts configuration 2.0//en"
"http://struts.apache.org/dtds/struts-2.0.dtd">
<struts>
<package name="default" extends="struts-default">
<action name="register" class="loginregisteraction.registeraction">
<result name="success">/login.jsp</result>
<result name="input">/register.jsp</result>
<result name="error">/register.jsp</result>
</action>
<action name="login" class="loginregisteraction.loginaction">
<result name="success">/success.jsp</result>
<result name="input">/login.jsp</result>
<result name="error">/login.jsp</result>
</action>
</package>
</struts>
6、hibernate的配置文件
使用hibernate需要通过hibernate的配置文件加载数据库驱动以及与数据建立连接，配置文件为hibernate.cfg.xml
<!doctype hibernate-configuration public
"-//hibernate/hibernate configuration dtd 3.0//en"
"http://hibernate.sourceforge.net/hibernate-configuration-3.0.dtd">
<hibernate-configuration>
<session-factory>
<property name="connection.driver_class">com.mysql.jdbc.driver</property>
<property name="connection.url">jdbc:mysql://localhost:3306/test?useunicode=true&characterencoding=utf-8</property>
<property name="connection.username">root</property>
<property name="connection.password"></property>
<!-- 指定数据库的方言 -->
<property name="dialect">org.hibernate.dialect.mysql5dialect</property>
<!-- 加入映射文件 -->
<mapping resource="po/userinfopo.hbm.xml"/>
</session-factory>
</hibernate-configuration>
7、加载上面hibernate配置文件的类(hibernatesessionfactory.java)
package addhibernatefile;
import org.hibernate.session;
import org.hibernate.sessionfactory;
import org.hibernate.cfg.configuration;
public class hibernatesessionfactory {
private sessionfactory sessionfactory;
public hibernatesessionfactory(){
}
public sessionfactory config(){
try{
configuration configuration= new configuration();
configuration configure=configuration.configure("hibernate.cfg.xml");
return configure.buildsessionfactory();
}catch(exception e){
e.getmessage();
return null;
}
}
public session getsession(){
sessionfactory=config();
return sessionfactory.opensession();
}
}
8、po对象以及对应的映射文件(在同一个包下)
(1)po对象的类userinfopo.java
package po;
/*
* po对象(持久化对象)的类，与数据库相对应
*/
public class userinfopo {
private int id;
private string username;
private string password;
public int getid() {
return id;
}
public void setid(int id) {
this.id = id;
}
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;
}
}
(2) po对应的映射文件userinfopo.hbm.xml
<?xml version="1.0" encoding="utf-8"?>
<!doctype hibernate-mapping public "-//hibernate/hibernate mapping dtd 3.0//en"
"http://hibernate.sourceforge.net/hibernate-mapping-3.0.dtd">
<!-- 映射文件的根元素 -->
<hibernate-mapping>
<!-- 配置po对象与数据库中表的对应关系使用class元素，name配置po对象对应的类，
table配置该po对象在数据库中对应的表名，catalog配置表对应的数据库名 -->
<class name="po.userinfopo" table="info" catalog="test">
<!-- id元素配置po对象与数据库中表的对应id字段，name配置po对象对应的属性，type指定类型
generator元素将主键自动加入序列 -->
<id name="id" type="int">
<column name="id"/>
<generator class="assigned" />
</id>
<property name="username" type="string">
<column name="username" length="30" not-null="true" />
</property>
<property name="password" type="string">
<column name="password" length="30" not-null="true" />
</property>
</class>
</hibernate-mapping>
9、完成登录和注册业务功能
将登录和注册业务功能封装到类loginregisterinfo(javabean)中
数据库操作类loginregisterinfo.java:
package loginregisterdao;
/*
* 登录和注册业务功能，封装到这个javabean
*/
import java.util.list;
import javax.swing.joptionpane;
import org.hibernate.query;
import org.hibernate.session;
import org.hibernate.transaction;
import po.userinfopo;
import addhibernatefile.hibernatesessionfactory;
public class loginregisterinfo {
private session session;
private transaction transaction;
private query query;
hibernatesessionfactory getsession;
public loginregisterinfo(){
}
public string saveinfo(userinfopo info){
string mess="error";
getsession=new hibernatesessionfactory();
session=getsession.getsession();
try{
transaction=session.begintransaction();
session.save(info);
transaction.commit();
mess="success";
return mess;
}catch(exception e){
message("registerinfo.error:"+e);
e.printstacktrace();
return null;
}
}
public list queryinfo(string type,object value){
getsession=new hibernatesessionfactory();
session=getsession.getsession();
try{
string hqlsql="from userinfopo as u where u.username=?";
query=session.createquery(hqlsql);
query.setparameter(0, value);
list list=query.list();
transaction=session.begintransaction();
transaction.commit();
return list;
}catch(exception e){
message("loginregisterinfo类中有异常，异常为：:"+e);
e.printstacktrace();
return null;
}
}
public void message(string mess){
int type=joptionpane.yes_no_option;
string title="提示信息";
joptionpane.showmessagedialog(null, mess,title,type);
}
}
以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持。