简单的SSS框架整合（简单的注册登录界面）

梦里梦外; 2021-09-22 14:36 443阅读 0赞

1、创建一个maven项目  
2、pom.xml导入依赖jar包（这里需要注意的是jar包的完整性，不然会报错）

Junit，spring-test：用于单元测试（不测试可以不加）；spring-data-jpa（1.11.3）；spring-webmvc（4.3.8）；hibernate-core（5.0.11）；hibernate-entitymanager（5.0.11）；javax.servlet-api（3.1.0）；javax.servet.jsp-api（2.2.1）；Jstl（1.2），standard（1.1.2）：在项目中使用JSTL和EL表达式；mysql-connector-java（5.1.29）：数据库驱动；c3p0（0.9.5）；jackson-databind（2.9.6）：用于数据返回（版本太低不支持）；slf4j-log4j12（1.6.4）

3、创建数据库驱动文件：db.properties

jdbc.jdbcUrl=jdbc:mysql://localhost:3306/sss
    jdbc.driverClass=com.mysql.jdbc.Driver
    jdbc.user=root
    jdbc.password=root

4、创建打印日志的文件：log4j.properties

log4j.rootLogger=INFO,Console,File 
    #\u5B9A\u4E49\u65E5\u5FD7\u8F93\u51FA\u76EE\u7684\u5730\u4E3A\u63A7\u5236\u53F0 
    log4j.appender.Console=org.apache.log4j.ConsoleAppender 
    log4j.appender.Console.Target=System.out 
    #\u53EF\u4EE5\u7075\u6D3B\u5730\u6307\u5B9A\u65E5\u5FD7\u8F93\u51FA\u683C\u5F0F\uFF0C\u4E0B\u9762\u4E00\u884C\u662F\u6307\u5B9A\u5177\u4F53\u7684\u683C\u5F0F 
    log4j.appender.Console.layout = org.apache.log4j.PatternLayout 
    log4j.appender.Console.layout.ConversionPattern=[%c] - %m%n  
    #\u6587\u4EF6\u5927\u5C0F\u5230\u8FBE\u6307\u5B9A\u5C3A\u5BF8\u7684\u65F6\u5019\u4EA7\u751F\u4E00\u4E2A\u65B0\u7684\u6587\u4EF6 
    log4j.appender.File = org.apache.log4j.RollingFileAppender 
    #\u6307\u5B9A\u8F93\u51FA\u76EE\u5F55 
    log4j.appender.File.File = logs/ssm.log 
    #\u5B9A\u4E49\u6587\u4EF6\u6700\u5927\u5927\u5C0F 
    log4j.appender.File.MaxFileSize = 10MB 
    # \u8F93\u51FA\u6240\u4EE5\u65E5\u5FD7\uFF0C\u5982\u679C\u6362\u6210DEBUG\u8868\u793A\u8F93\u51FADEBUG\u4EE5\u4E0A\u7EA7\u522B\u65E5\u5FD7 
    log4j.appender.File.Threshold = ALL 
    log4j.appender.File.layout = org.apache.log4j.PatternLayout 
    log4j.appender.File.layout.ConversionPattern =[%p] [%d{yyyy-MM-dd HH\:mm\:ss}][%c]%m%n

5、创建spring框架配置文件：applicationContext.xml

<context:component-scan base-package="com.dream" />
    
    	
    	<beanclass="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer"
    		id="annotationPropertyConfigurer">
    		
    		<property name="ignoreResourceNotFound" value="true" />
    		
    		<property name="locations">
    			<list>
    				<value>classpath:db.properties</value>
    				<value>classpath:log4j.properties</value>
    			</list>
    		</property>
    	</bean>
    
    	
    	<bean id="dataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource">
    		<property name="jdbcUrl" value="${jdbc.jdbcUrl}"></property>
    		<property name="driverClass" value="${jdbc.driverClass}"></property>
    		<property name="user" value="${jdbc.user}"></property>
    		<property name="password" value="${jdbc.password}"></property>
    	</bean>
    
    	
    	<bean
    		class="org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean"
    		id="entityManagerFactory">
    		<property name="dataSource" ref="dataSource"></property>
    		<property name="jpaVendorAdapter">
    			<bean class="org.springframework.orm.jpa.vendor.HibernateJpaVendorAdapter"></bean>
    		</property>
    		<property name="packagesToScan" value="com.dream.bean" />
    		<property name="jpaProperties">
    			<props>
    				
    				<prop key="hibernate.ejb.naming_strategy">org.hibernate.cfg.ImprovedNamingStrategy</prop>
    				
    				<prop key="hibernate.dialect">org.hibernate.dialect.MySQLDialect</prop>
    				<prop key="hibernate.show_sql">true</prop>
    				<prop key="hibernate.format_sql">true</prop>
    				<prop key="hibernate.hbm2ddl.auto">update</prop>
    			</props>
    		</property>
    	</bean>
    
    	
    	<bean id="transactionManager" class="org.springframework.orm.jpa.JpaTransactionManager">
    		<property name="entityManagerFactory" ref="entityManagerFactory" />
    	</bean>
    
    	
    	<tx:annotation-driven transaction-manager="transactionManager" />
    
    	
    	
    	<jpa:repositories base-package="com.dream.dao"
    		entity-manager-factory-ref="entityManagerFactory">
    	</jpa:repositories>

6、创建springmvc框架配置文件：springmvc.xml

<context:component-scan base-package="com.dream.controller" />
    
    
    	<bean
    	class="org.springframework.web.servlet.view.InternalResourceViewResolver">
    		
    		<property name="prefix" value="/WEB-INF/jsp/"></property>
    		
    		<property name="suffix" value=".jsp"></property>
    	</bean>

7、web.xml文件中的配置

<listener>
    	<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
    	</listener>
    
    	<context-param>
    		<param-name>contextConfigLocation</param-name>
    		<param-value>classpath:applicationContext.xml</param-value>
    	</context-param>
    
    	
    	<servlet>
    		<servlet-name>DispatcherServlet</servlet-name>
    	<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
    		
    		<init-param>
    			<param-name>contextConfigLocation</param-name>
    			<param-value>classpath:springmvc.xml</param-value>
    		</init-param>
    		<load-on-startup>1</load-on-startup>
    	</servlet>
    	<servlet-mapping>
    		<servlet-name>DispatcherServlet</servlet-name>
    		
    		<url-pattern>/</url-pattern>
    	</servlet-mapping>
    
    	
    	<filter>
    		<filter-name>characterEncodingFilter</filter-name>
    	<filter-class>org.springframework.web.filter.CharacterEncodingFilter</filter-class>
    		<init-param>
    			<param-name>encoding</param-name>
    			<param-value>UTF-8</param-value>
    		</init-param>
    		<init-param>
    			<param-name>forceEncoding</param-name>
    			<param-value>true</param-value>
    		</init-param>
    	</filter>
    	<filter-mapping>
    		<filter-name>characterEncodingFilter</filter-name>
    		<url-pattern>/*</url-pattern>
    	</filter-mapping>

8、创建实体类（注解模式）（配置了数据库自动创建表，不需要自己创建）

@Entity
    @Table(name="user")
    public class User {
    
    	@Id
    	@GeneratedValue(strategy=GenerationType.IDENTITY)
    	private Integer id;
    	@Column
    	private String username;//姓名
    	@Column
    	private String password;//密码
    	public Integer getId() {
    		return id;
    	}
    	public void setId(Integer 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;
    	}
    	@Override
    	public String toString() {
    		return "User [id=" + id + ", username=" + username + ", password=" + password + "]";
    	}
    }

9、创建dao层，继承JpaRepository，JpaSpecificationExecutor接口

public interface IUserDAO extends JpaRepository<User, Serializable>,JpaSpecificationExecutor<User>{
    	@Query("from User where username=?1")
    	User findOneUserByUsername(String username);
    }

10、创建service层（注解注入dao层对象）

@Service
    @Transactional
    public class UserService implements IUserService{
    
    	@Autowired
    	IUserDAO userDAO;
    
    	@Override
    	public User addUser(User u) {
    		if (null==u||"".equals(u.getUsername())||"".equals(u.getPassword())) {
    			return null;
    		}else {
    			User user = userDAO.findOneUserByUsername(u.getUsername());
    			if (null!=user) {
    				return null;
    			}else {
    				return userDAO.save(u);
    			}
    		}
    	}
    
    	@Override
    	public User findUserByUsername(User u) {
    		if (null!=u&&!"".equals(u.getUsername())&&!"".equals(u.getPassword())) {
    			User user = userDAO.findOneUserByUsername(u.getUsername());
    			 if (user.getPassword().equals(u.getPassword())) {
    				return user;
    			}
    		}
    		return null;
    	}
    }

11、创建controller层（注解注入service层对象）

@Controller
    @RequestMapping("/user")
    public class UserController {
    
    	@Autowired
    	IUserService userService;
    	
    	@RequestMapping("/regist")
    	public void regist(Model model,User user,HttpServletRequest request,HttpServletResponse response) throws Exception{
    		response.setContentType("text/html;charset=utf-8");
    		User user2 = userService.addUser(user);
    		if (null!=user2) {
    			response.getWriter().write("<script>alert('注册成功');location.href='"+request.getContextPath()+"/page/login';</script>");
    		}else {
    			response.getWriter().write("<script>alert('注册失败');location.href='"+request.getServletContext().getContextPath()+"/page/regist';</script>");
    		}
    	}
    	@RequestMapping("/login")
    	public void login(Model model,User user,HttpServletRequest request,HttpServletResponse response) throws Exception{
    		response.setContentType("text/html;charset=utf-8");
    			User user2 = userService.findUserByUsername(user);
    			if (null!=user2) {
    				response.getWriter().write("<script>alert('登陆成功');location.href='"+request.getContextPath()+"/page/index';</script>");
    			}else {
    				response.getWriter().write("<script>alert('登陆失败');location.href='"+request.getContextPath()+"/page/login';</script>");
    			}
    	}
    }

这里写一个页面跳转帮助类

@Controller
    public class PageController {
    
    	@RequestMapping("/page/{page}")
    	public String skip(@PathVariable(value="page") String page){
    		return page;
    	}
    }

12、创建前台页面

//注册
    <form action="${pageContext.request.contextPath}/user/regist"
    		method="post" id="registForm">
    		<input type="hidden" name="method" value="regist">
    		<div class="control-group">
    			<div class="controls">
    				<div class="input-icon left">
    					<i class="icon-user"></i> <input class="m-wrap placeholder-no-fix"
    						type="text" placeholder="帐号" id="username" name="username">
    				</div>
    			</div>
    		</div>
    		<div class="control-group">
    			<div class="controls">
    				<div class="input-icon left">
    					<i class="icon-lock"></i> <input class="m-wrap placeholder-no-fix"
    						type="password" placeholder="密码" id="password" name="password">
    				</div>
    			</div>
    		</div>
    		<div class="relogin">
    			
    			<button type="submit" id="login-submit-btn" class="btn green"
    				style="margin-left: 20px">
    				注册 <i class="m-icon-swapright m-icon-white"></i>
    			</button>
    		</div>
    	</form>

//登录
    <form action="${pageContext.request.contextPath}/user/login"
    		method="post" id="loginForm">
    		<input type="hidden" name="method" value="login">
    		<div class="control-group">
    			<div class="controls">
    				<div class="input-icon left">
    					<i class="icon-user"></i> <input class="m-wrap placeholder-no-fix"
    						type="text" placeholder="帐号" id="username" name="username">
    				</div>
    			</div>
    		</div>
    		<div class="control-group">
    			<div class="controls">
    				<div class="input-icon left">
    					<i class="icon-lock"></i> <input class="m-wrap placeholder-no-fix"
    						type="password" placeholder="密码" id="password" name="password">
    				</div>
    			</div>
    		</div>
    		<div class="relogin">
    			
    			<button type="submit" id="login-submit-btn" class="btn green"
    				style="margin-left: 20px">
    				登陆 <i class="m-icon-swapright m-icon-white"></i>
    			</button>
    		</div>
    	</form>