• ssm框架思维-登录


    1.所需jar包

      1.Spring框架jar包
      2.Mybatis框架jar包
      3.Spring的AOP事务jar包
      4.Mybatis整合Spring中间件jar包
      5.aspectj框架jar包
      6.aop联盟jar包
      7.数据库驱动jar包
      8.数据源c3p0所需jar包
      9.JSTL标签库jar包

    2、db.properties文件

    dataSource.driverClass=com.mysql.jdbc.Driver
    dataSource.jdbcUrl=jdbc:mysql://localhost:3306/smmbook
    dataSource.user=root
    dataSource.password=
    dataSource.maxPoolSize=20
    dataSource.maxIdleTime = 1000
    dataSource.minPoolSize=6
    dataSource.initialPoolSize=5

    3、applicationContext.xml 文件

    <?xml version="1.0" encoding="UTF-8"?>
    <beans xmlns="http://www.springframework.org/schema/beans" 
        xmlns:mybatis="http://mybatis.org/schema/mybatis-spring"
        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"
        xmlns:tx="http://www.springframework.org/schema/tx"
        xsi:schemaLocation="http://www.springframework.org/schema/beans 
                            http://www.springframework.org/schema/beans/spring-beans-4.2.xsd
                            http://www.springframework.org/schema/context
                            http://www.springframework.org/schema/context/spring-context-4.2.xsd
                            http://www.springframework.org/schema/mvc
                            http://www.springframework.org/schema/mvc/spring-mvc-4.2.xsd
                            http://www.springframework.org/schema/tx
                            http://www.springframework.org/schema/tx/spring-tx-4.1.xsd
                            http://mybatis.org/schema/mybatis-spring 
                            http://mybatis.org/schema/mybatis-spring.xsd ">
                      
         <!-- mybatis:scan会将codeRose.mapper包里的所有接口当作mapper配置,之后可以自动引入mapper类-->  
        <mybatis:scan base-package="codeRose.mapper"/>   
           
         <!-- 扫描codeRose包下面的java文件,有Spring的相关注解的类,则把这些类注册为Spring的bean -->
        <context:component-scan base-package="codeRose"/>
        
        <!-- 使用PropertyOverrideConfigurer后处理器加载数据源参数 -->
        <context:property-override location="classpath:db.properties"/>
    
        <!-- 配置c3p0数据源 -->
        <bean id="dataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource"/>
        
        <!-- 配置SqlSessionFactory,org.mybatis.spring.SqlSessionFactoryBean是Mybatis社区开发用于整合Spring的bean -->
        <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean"
            p:dataSource-ref="dataSource"/>
        
        <!-- JDBC事务管理器 -->
        <bean id="transactionManager" 
        class="org.springframework.jdbc.datasource.DataSourceTransactionManager"
             p:dataSource-ref="dataSource"/>
        
        <!-- 启用支持annotation注解方式事务管理 -->
        <tx:annotation-driven transaction-manager="transactionManager"/>
        
    </beans>

    4、springmvc-config 配置文件

    <?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:mvc="http://www.springframework.org/schema/mvc"
        xmlns:context="http://www.springframework.org/schema/context"
        xsi:schemaLocation="
            http://www.springframework.org/schema/beans
            http://www.springframework.org/schema/beans/spring-beans-4.2.xsd
            http://www.springframework.org/schema/mvc
            http://www.springframework.org/schema/mvc/spring-mvc-4.2.xsd     
            http://www.springframework.org/schema/context
            http://www.springframework.org/schema/context/spring-context-4.2.xsd">
            
        <!-- 自动扫描该包,SpringMVC会将包下用了@controller注解的类注册为Spring的controller -->
        <context:component-scan base-package="codeRose.controller"/>
        <!-- 设置默认配置方案 -->
        <mvc:annotation-driven/>
        <!-- 使用默认的Servlet来响应静态文件 -->
        <mvc:default-servlet-handler/>
        <!-- 视图解析器  -->
         <bean id="viewResolver"
              class="org.springframework.web.servlet.view.InternalResourceViewResolver"> 
            <!-- 前缀 -->
            <property name="prefix">
                <value>/WEB-INF/content/</value>
            </property>
            <!-- 后缀 -->
            <property name="suffix">
                <value>.jsp</value>
            </property>
        </bean>
        
    </beans>

    5、web.xml文件

    <?xml version="1.0" encoding="UTF-8"?>
    <web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 
        xmlns="http://xmlns.jcp.org/xml/ns/javaee" 
        xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee 
        http://xmlns.jcp.org/xml/ns/javaee/web-app_3_1.xsd" 
        id="WebApp_ID" version="3.1">
        
        <!-- 配置spring核心监听器,默认会以 /WEB-INF/applicationContext.xml作为配置文件 -->
        <listener>
            <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
        </listener>
        <!-- contextConfigLocation参数用来指定Spring的配置文件 -->
        <context-param>
            <param-name>contextConfigLocation</param-name>
            <param-value>/WEB-INF/applicationContext*.xml</param-value>
        </context-param>
        
        <!-- 定义Spring MVC的前端控制器 -->
      <servlet>
        <servlet-name>springmvc</servlet-name>
        <servlet-class>
            org.springframework.web.servlet.DispatcherServlet
        </servlet-class>
        <init-param>
          <param-name>contextConfigLocation</param-name>
          <param-value>/WEB-INF/springmvc-config.xml</param-value>
        </init-param>
        <load-on-startup>1</load-on-startup>
      </servlet>
      
      <!-- 让Spring MVC的前端控制器拦截所有请求 -->
      <servlet-mapping>
        <servlet-name>springmvc</servlet-name>
        <url-pattern>/</url-pattern>
      </servlet-mapping>
      
      <!-- 编码过滤器 -->
      <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>
     </filter>
        <filter-mapping>
            <filter-name>characterEncodingFilter</filter-name>
            <url-pattern>/*</url-pattern>
        </filter-mapping>
        
    </web-app>

    6、持久层功能实现

    或者自己写个mapping.xml  去实现SQL语句

    import org.apache.ibatis.annotations.Param;
    import org.apache.ibatis.annotations.Select;
    
    import codeRose.domain.User;
    //持久层包括数据库表映射的User.java的JavaBean对象,并使用了MyBatis的注解映射了对应的SQL语句
    
    public interface UserMapper {
        @Select("select * from user where loginname=#{loginname} and password=#{password}")
        User findWithLoginAndPassword(@Param("loginname")String loginname,@Param("password")String password);
    
    }

    7、服务层

    自己写接口,并实现

    8、控制层功能实现

    import org.springframework.stereotype.Controller;
    import org.springframework.web.bind.annotation.PathVariable;
    import org.springframework.web.bind.annotation.RequestMapping;
    //动态页面跳转控制器
    
    @Controller
    public class FormController {
        @RequestMapping(value="/{formName}")
        public String loginForm(@PathVariable String formName){
            return formName;
        }
    
    }

    或者

    package xxx;
    
    import javax.servlet.http.HttpSession;
    
    import org.springframework.beans.factory.annotation.Autowired;
    import org.springframework.beans.factory.annotation.Qualifier;
    import org.springframework.stereotype.Controller;
    import org.springframework.web.bind.annotation.RequestMapping;
    import org.springframework.web.servlet.ModelAndView;
    import org.springframework.web.servlet.view.RedirectView;
    
    import codeRose.domain.User;
    import codeRose.service.UserService;
    
    @Controller
    public class UserController {
        @Autowired
        @Qualifier("userService")
        private UserService userService;
        /**
         * 处理/login请求
         */
        @RequestMapping(value="/login")
        public ModelAndView login(String loginname,String password,ModelAndView mv,HttpSession session){
            User user=userService.login(loginname, password);
            if(user!=null){
                //登录成功,将user对象设置到HttpSession作用范围域中
                session.setAttribute("user", user);
                //转发到main请求
                mv.setView(new RedirectView("/smmbookapp/main"));
            }else {
                //登录失败,设置失败信息,并调转到登录页面
                
                mv.addObject("message","登录名和密码错误,请重新输入");
                mv.setViewName("loginForm");
            }
            return mv;
        }
    }

    9、JSP

    page language="java" contentType="text/html; charset=utf-8"
        pageEncoding="utf-8"%>
    <!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">
    <link href="css/font-awesome.min.css" rel="stylesheet" type="text/css">
        <link href="css/bootstrap.min.css" rel="stylesheet" type="text/css">
        <link href="css/bootstrap-theme.min.css" rel="stylesheet" type="text/css">
        <link href="css/templatemo_style.css" rel="stylesheet" type="text/css">    
    </head>
    <body class="templatemo-bg-gray">
        <div class="container">
            <div class="col-md-12">
                <h1 class="margin-bottom-15">ssmbookapp</h1>
                <font color="red">${requestScope.message }</font>
                <form class="form-horizontal templatemo-container templatemo-login-form-1 margin-bottom-30" role="form" action="login" method="post">                                                                                                                                                                                                                
                    <div class="form-group">
                      <div class="col-xs-12">                    
                        <div class="control-wrapper">
                            <label for="username" class="control-label fa-label"><i class="fa fa-user fa-medium"></i></label>
                            <input type="text" class="form-control" id="loginname" placeholder="管理员用户名" name="loginname">
                        </div>                                    
                      </div>              
                    </div>
                    <div class="form-group">
                      <div class="col-md-12">
                          <div class="control-wrapper">
                            <label for="password" class="control-label fa-label"><i class="fa fa-lock fa-medium"></i></label>
                            <input type="password" class="form-control" id="password" placeholder="登录密码" name="password">
                        </div>
                      </div>
                    </div>
                    
                    <div class="form-group">
                      <div class="col-md-12">
                          <div class="control-wrapper">
                              <input type="submit" value="Log in" class="btn btn-info">
                              
                          </div>
                      </div>
                    </div>
                    <hr>
                    
                  </form>
                  
            </div>
        </div>
    </body>
    </html>
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  • 原文地址:https://www.cnblogs.com/flyingdreams/p/13738141.html
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