一步步搭建Spring+Spring MVC+Hibernate系统框架+登录与注册功能

港控/mmm° 2022-06-15 02:36 195阅读 0赞

# **Spring+Spring MVC + Hibernate** #

# **1新建WEB项目** #

## **1.1先设置myeclipse编码格式，JSP、workspace** ##

## **1.2新建web工程** ##

![Center][]![Image 1][]

## **1.3避免MyEclipse验证js文件，先在web项目上单击右键，再选择“Myecplise------->open in explorer”，在下图.project文件中删除如右图代码** ##

**![Center 1][]**

# **2安装Hibernate和Spring** #

## **2.1新建DB(在控制台这一栏右键new 数据库DB)，请加上如下图代码，防止乱码：** ##

jdbc:mysql://localhost:3306/javassh?useUnicode=true&characterEncoding=UTF-8

## 2.2添加hibernate ##

2.2.1注意取消生成factory选项

2.2.2增加hibernate的属性

format_sql=true
    hbm2ddl.auto=update

## **2.3添加spring** ##

2.3.1注意勾选JDBC、Core、Web、Testing（可选）这几个选项

![Center 2][]![Image 1][]

2.3.2把工程里面的applicationContext.xml改名为spring.xml

2.3.2在src目录下拷入log4j：log4j.properties，配置为debug

# **3配置Spring MVC以及Spring** #

## **3.1配置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" xmlns:web="http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd"
    	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>17SSH_SpringHibernate</display-name>
    
    	
    	<context-param>
    		<param-name>contextConfigLocation</param-name>
    		<param-value>classpath:spring.xml</param-value>
    	</context-param>
    
    	
    	<listener>
    		<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
    	</listener>
    
    	
    	<servlet>
    		<servlet-name>springmvc</servlet-name>
    		<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
    		<init-param>
    			<param-name>contextConfigLocation</param-name>
    			<param-value>classpath:spring-mvc.xml</param-value>
    		</init-param>
    	</servlet>
    	<servlet-mapping>
    		<servlet-name>springmvc</servlet-name>
    		<url-pattern>/</url-pattern>
    	</servlet-mapping>
    
    	
    	<filter>
    		<filter-name>CharacterEncodingFilter</filter-name>
    		<filter-class>org.springframework.web.filter.CharacterEncodingFilter</filter-class>
    	</filter>
    	<filter-mapping>
    		<filter-name>CharacterEncodingFilter</filter-name>
    		<url-pattern>/*</url-pattern>
    	</filter-mapping>
    
    	
    	<jsp-config>
    		<jsp-property-group>
    			<url-pattern>*.jsp</url-pattern>
    			<trim-directive-whitespaces>true</trim-directive-whitespaces>
    		</jsp-property-group>
    	</jsp-config>
    </web-app>

## **3.2配置Spring MVC** ##

3.2.1在src目录下新建spring-mvc.xml文件，可以复制spring.xml完成

3.2.2spring-mvc.xml文件代码如下：

<?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:p="http://www.springframework.org/schema/p"
    	xmlns:context="http://www.springframework.org/schema/context"
    	xmlns:mvc="http://www.springframework.org/schema/mvc"
    	xsi:schemaLocation="http://www.springframework.org/schema/beans 
    		http://www.springframework.org/schema/beans/spring-beans-3.0.xsd
    						http://www.springframework.org/schema/context 
    	http://www.springframework.org/schema/context/spring-context-3.0.xsd
    						http://www.springframework.org/schema/mvc 
    	http://www.springframework.org/schema/mvc/spring-mvc-3.0.xsd">  
    
        
        <context:component-scan base-package="com.welljoint" />
    
          
        <mvc:annotation-driven />  
    
          
        <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">  
    		  
            <property name="viewClass" value="org.springframework.web.servlet.view.JstlView"/>  
            
            <property name="prefix" value="/WEB-INF/jsp/"/>  
            
            <property name="suffix" value=".jsp"/>  
    	</bean>  
    	
    	
    	<mvc:resources location="/res/" mapping="/res/**"/>  
    </beans>

3.2.3 说明：此时的工程结构如图:

![Center 3][]![Image 1][]

# **4下面开始写控制层** #

## **4.1在src下新建controller类,类名字为LoginController,添加get和post方法。** ##

@RequestMapping(method=RequestMethod.GET)
    	public String get(){
    		return "login";
    }
    @RequestMapping(method=RequestMethod.POST)
    	public String post(){
    		return "login_success";
    }

## **4.2写jsp页面，名字login.jsp** ##

4.2.1拷入bootstrap和jquery到res目录下

4.2.2在jsp页面中导入bootstrap和jquery，并编写jsp页面

4.2.3增加验证码

## **4.3在src下新建controller的bean(注意路径)，bean名字为Login：添加如下属性，并提供相对应的get和set方法。** ##

private String username;
    	private String password;
    	private String vcode;

## **4.4增加SpringMVC验证功能** ##

4.3.1 Hibernate-valiation相应的jar包

4.3.2在login这个bean上添加如下注解（部分）：

@NotNull
    	@Length(min=3, max=16)
    	private String username;
    	@NotNull
    	private String password;
    	@NotNull
    	private String vcode;

4.3.3在控制器（LoginController）上添加如下代码：

@RequestMapping(method=RequestMethod.POST)
    	public String post(@Valid@ModelAttribute("login")Login login,
    			BindingResult errors){
    		if(errors.hasErrors()){
    			return "login";
    		}
    		return "login_success";
    	}

4.3.4在login.jsp页面上添加显示错误消息的代码：

<%@ taglib prefix="form" uri="http://www.springframework.org/tags/form" %>

<form:errors path="login.username" element="span" cssClass="help-block"/>

4.3.5 通过 session 为中介，让验证码起作用：

#  #

//注意，先要通过post的参数传一个session进来 String sessionVcode = (String) session.getAttribute(ValidateCode.VCODE_SESSION_KEY); if(sessionVcode == null || !sessionVcode.toLowerCase().equals(login.getVcode().toLowerCase())){ errors.addError(new FieldError("login", "vcode", "验证码错误")); }

# **5 Spring合hibernate** #

## **5.1添加context、tx命名空间，见3.2.2节。** ##

## **5.2把hibernate.cfg.xml配置，对应地写到spring.xml文件中** ##

<context:component-scan base-package="wllfengshu.forum"/>
    	<bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource">
    		<property name="driverClassName" value="com.mysql.jdbc.Driver"/>
    		<property name="url" value="jdbc:mysql://localhost:3306/forum"/>
    		<property name="username" value="root"/>
    	</bean>
    	<bean id="sessionFactory" class="org.springframework.orm.hibernate3.LocalSessionFactoryBean">
    		<property name="dataSource" ref="dataSource"/>
    		<property name="hibernateProperties">
    			<props>
    				<prop key="dialect">org.hibernate.dialect.MySQLDialect</prop>
    				<prop key="format_sql">true</prop>
    				<prop key="hbm2ddl.auto">update</prop>
    			</props>
    		</property>
    		<property name="mappingLocations" value="classpath:/wllfengshu/forum/po"/>
    	</bean>
    	
    	<bean id="transactionManager" class="org.springframework.orm.hibernate3.HibernateTransactionManager">
    		<property name="sessionFactory" ref="sessionFactory"/>
    	</bean>
    	
    	<tx:annotation-driven transaction-manager="transactionManager"/>
    </beans>

## **5.3写持久化类User的bean(包名：wllfengshu.forum.po)** ##

private Integer id;
    	private String username;
    	private String password;
    	private String name;
    	private String nickname;
    /*给出对应地get和set方法*/

## **5.4写User的映射文件User.hbm.xml(包名：wllfengshu.forum.po)** ##

##  ##

<hibernate-mapping package="wllfengshu.forum.po"> <class name="User" table="user"> <id name="id"> <generator class="native"/> </id> <property name="username" length="32" not-null="true" unique="true"/> <property name="password" length="64" not-null="true"/> <property name="name" length="32" not-null="true"/> <property name="nickname" length="32" not-null="true"/> </class> </hibernate-mapping>

## **5.5写UserDao(包名：wllfengshu.forum.dao)** ##

public interface UserDao {
    	public User login(String username, String password);
    	public Integer save(User user);
    	public void update(User user);
    	public boolean validatePassword(Integer id, String password);
    	public void updatePassword(Integer id, String password);
    }

## **5.6 Spring操作hibernateAPi。**   5.6.1在spring-mvc中加上default-autowire="byName"属性 ##

## 5.6.2写UserDao的实现类UserDaoImpl ##

## (包名：wllfengshu.forum.dao.impl): ##

@Repository
    public class UserDaoImpl extends HibernateDaoSupport implements UserDao {
    	@Override
    	public User login(String username, String password) {
    		List<User> users = getHibernateTemplate().find("from User where username=? and password=?", username, password);
    		return users.size() > 0 ? users.get(0) : null;
    	}
    	@Override
    	public Integer save(User user) {
    		return (Integer) getHibernateTemplate().save(user);
    	}
    	@Override
    	public void update(User user) {
    		getHibernateTemplate().update(user);
    	}
    	@Override
    	public boolean validatePassword(Integer id, String password) {
    		return false;
    	}
    	@Override
    	public void updatePassword(Integer id, String password) {
    	}
    }

## **5.7写service层，UserService(包名：wllfengshu.forum.service)** ##

public interface UserService {
    	public User login(String username, String password);
    	public Integer save(User user);
    }

## **5.8写UserService的实现(包名：wllfengshu.forum.service.impl)** ##

@Service
    public class UserServiceImpl implements UserService {
    	@Autowired
    	private UserDao userDao;
    	@Override
    	@Transactional(readOnly=true)
    	public User login(String username, String password) {
    		return userDao.login(username, password);
    	}
    	@Override
    	public Integer save(User user) {
    		return userDao.save(user);
    	}
    }

## **5.9在Login的控制器层中，进行登录。** ##

@Autowired
    	private UserService userService;	
    	
    		User user = userService.login(login.getUsername(), login.getPassword());
    		if(user == null){
    			errors.addError(new ObjectError("login", "用户名或者密码错误"));
    			return "login";
    		}else{
    //这里的SessionUser是为了把用户登录信息放到session中
    			SessionUser sessionUser = SessionUser.fromUser(user);
    			session.setAttribute(SessionUser.class.getSimpleName(), sessionUser);
    		}
    		return "login_success";

## **5.10写Register的bean和register的控制器，和login类似。** ##

本文链接：http://blog.csdn.net/tiandixuanwuliang/article/details/72598938

[Center]: https://img-blog.csdn.net/20171109001457185?watermark/2/text/aHR0cDovL2Jsb2cuY3Nkbi5uZXQvdGlhbmRpeHVhbnd1bGlhbmc=/font/5a6L5L2T/fontsize/400/fill/I0JBQkFCMA==/dissolve/70/gravity/Center
[Image 1]: 
[Center 1]: /images/20220615/a47870ebf59c4e488335ce3fb09428d5.png
[Center 2]: https://img-blog.csdn.net/20171109001756159?watermark/2/text/aHR0cDovL2Jsb2cuY3Nkbi5uZXQvdGlhbmRpeHVhbnd1bGlhbmc=/font/5a6L5L2T/fontsize/400/fill/I0JBQkFCMA==/dissolve/70/gravity/Center
[Center 3]: https://img-blog.csdn.net/20171109001838573?watermark/2/text/aHR0cDovL2Jsb2cuY3Nkbi5uZXQvdGlhbmRpeHVhbnd1bGlhbmc=/font/5a6L5L2T/fontsize/400/fill/I0JBQkFCMA==/dissolve/70/gravity/Center