实训总结day5

整合SSM

SSM整合实现登录的步骤：

导入所有的jar包
添加所有的配置文件，转换config文件夹为资源文件夹
在web.xml文件中添加字符编码过滤器，注册springmvc和spring框架
实现所有配置文件中的功能
使用mybatis的逆向工程自动生成pojo，生成mapper接口和mapper.xml文件
新建service接口和实现类，完成管理员登录的功能
新建controller，完成登录功能
添加页面，图片，CSS
整改html页面为jsp页面
测试功能

jar包：
在这里插入图片描述
配置文件：
Jdbc.properties

jdbc.driver=com.mysql.jdbc.Driver
jdbc.url=jdbc:mysql://localhost:3306/xiaomissm?characterEncoding=utf-8
jdbc.username=root
jdbc.password=123456

applicationContext-dao.xml

<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"
   xmlns:aop="http://www.springframework.org/schema/aop" xmlns:tx="http://www.springframework.org/schema/tx"
   xsi:schemaLocation="http://www.springframework.org/schema/beans 
      http://www.springframework.org/schema/beans/spring-beans-4.0.xsd 
      http://www.springframework.org/schema/mvc 
      http://www.springframework.org/schema/mvc/spring-mvc-4.0.xsd 
      http://www.springframework.org/schema/context 
      http://www.springframework.org/schema/context/spring-context-4.0.xsd 
      http://www.springframework.org/schema/aop 
      http://www.springframework.org/schema/aop/spring-aop-4.0.xsd 
      http://www.springframework.org/schema/tx 
      http://www.springframework.org/schema/tx/spring-tx-4.0.xsd
      http://www.springframework.org/schema/task
          http://www.springframework.org/schema/task/spring-task-4.0.xsd
      http://code.alibabatech.com/schema/dubbo">
   <!--读取属性文件-->
   <context:property-placeholder location="classpath:jdbc.properties"></context:property-placeholder>
   <!--配置数据源-->
   <bean id = "dataSource" class="com.alibaba.druid.pool.DruidDataSource">
      <property name="driverClassName" value="${jdbc.driver}"></property>
      <property name="url" value="${jdbc.url}"></property>
      <property name="username" value="${jdbc.username}"></property>
      <property name="password" value="${jdbc.password}"></property>
   </bean>
   <!--配置mybatis工厂-->
   <bean class="org.mybatis.spring.SqlSessionFactoryBean">
      <!--工厂中要用到的数据源-->
      <property name="dataSource" ref="dataSource"></property>
      <!--配置mybatis的配置文件-->
      <property name="configLocation" value="classpath:SqlMapConfig.xml"></property>
      <!--配置pojo-->
      <property name="typeAliasesPackage" value="com.oracle.xiaomi.pojo"></property>
   </bean>
   <!--配置mapper所在的包-->
   <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
      <property name="basePackage" value="com.oracle.xiaomi.mapper"
   </bean>
</beans>

applicationContext-service.xml

<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"
   xmlns:aop="http://www.springframework.org/schema/aop" 
   xmlns:tx="http://www.springframework.org/schema/tx"
   xmlns:task="http://www.springframework.org/schema/task"
   xsi:schemaLocation="http://www.springframework.org/schema/beans
      http://www.springframework.org/schema/beans/spring-beans-4.0.xsd 
      http://www.springframework.org/schema/mvc 
      http://www.springframework.org/schema/mvc/spring-mvc-4.0.xsd 
      http://www.springframework.org/schema/context 
      http://www.springframework.org/schema/context/spring-context-4.0.xsd 
      http://www.springframework.org/schema/aop 
      http://www.springframework.org/schema/aop/spring-aop-4.0.xsd 
      http://www.springframework.org/schema/tx 
      http://www.springframework.org/schema/tx/spring-tx-4.0.xsd
      http://www.springframework.org/schema/task
          http://www.springframework.org/schema/task/spring-task-4.0.xsd
      http://code.alibabatech.com/schema/dubbo">
      
   <!--配置业务逻辑层，给spring扫描识别该包下的所有类，使用注解方式-->
   <context:component-scan base-package="com.oracle.xiaomi.service"></context:component-scan>
</beans>

springmvc.xml

<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"
   xmlns:aop="http://www.springframework.org/schema/aop" 
   xmlns:tx="http://www.springframework.org/schema/tx"
   xmlns:task="http://www.springframework.org/schema/task"
   xsi:schemaLocation="http://www.springframework.org/schema/beans
      http://www.springframework.org/schema/beans/spring-beans-4.0.xsd 
      http://www.springframework.org/schema/mvc 
      http://www.springframework.org/schema/mvc/spring-mvc-4.0.xsd 
      http://www.springframework.org/schema/context 
      http://www.springframework.org/schema/context/spring-context-4.0.xsd 
      http://www.springframework.org/schema/aop 
      http://www.springframework.org/schema/aop/spring-aop-4.0.xsd 
      http://www.springframework.org/schema/tx 
      http://www.springframework.org/schema/tx/spring-tx-4.0.xsd
      http://www.springframework.org/schema/task
          http://www.springframework.org/schema/task/spring-task-4.0.xsd
      http://code.alibabatech.com/schema/dubbo">
   <!--扫描根包 -->
   <context:component-scan base-package="com.oracle.xiaomi.controller"></context:component-scan>
   <!--视图解析器-->
<bean id="ResourceViewResolver" class="org.springframework.web.servlet.view.InternalResourceViewResolver">
   <property name="prefix" value="/admin/"></property>
   <property name="suffix" value=".jsp"></property>
</bean>
   <!--注册文件上传插件-->
<bean id="multipartResolver" class="org.springframework.web.multipart.commons.CommonsMultipartResolver"></bean>
   <!--注解JSON驱动-->
   <mvc:annotation-driven></mvc:annotation-driven>
</beans>

SqlMapConfig.xml

<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE configuration PUBLIC "-//mybatis.org//DTD Config 3.0//EN"
"http://mybatis.org/dtd/mybatis-3-config.dtd">
<configuration>
    <!--注册分页插件-->
    <plugins>
        <plugin interceptor="com.github.pagehelper.PageInterceptor">
        </plugin>
    </plugins>
</configuration>

mybatis的逆向工程的使用：
Mybatis逆向工程用来自动生成对应数据库表的pojo，生成mapper接口和mapper.xml文件，整个过程一键完成，省去了我们使用mybatis框架编写sql映射的过程。
Mybatis逆向工程最主要的配置文件generatorConfig.xml：

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE generatorConfiguration
  PUBLIC "-//mybatis.org//DTD MyBatis Generator Configuration 1.0//EN"
  "http://mybatis.org/dtd/mybatis-generator-config_1_0.dtd">
<generatorConfiguration>
   <context id="testTables" targetRuntime="MyBatis3">
      <commentGenerator>
         <!-- 是否去除自动生成的注释 true：是 ： false:否 -->
         <property name="suppressAllComments" value="true" />
      </commentGenerator>
      <!--数据库连接的信息：驱动类、连接地址、用户名、密码 -->
      <jdbcConnection driverClass="com.mysql.jdbc.Driver"
         connectionURL="jdbc:mysql://localhost:3306/xiaomissm" userId="root"
         password="123456">
      </jdbcConnection>
      <!-- 默认false，把JDBC DECIMAL 和 NUMERIC 类型解析为 Integer，为 true时把JDBC DECIMAL 和 
         NUMERIC 类型解析为java.math.BigDecimal -->
      <javaTypeResolver>
         <property name="forceBigDecimals" value="false" />
      </javaTypeResolver>
      <!-- targetProject:生成PO类的位置 -->
      <javaModelGenerator targetPackage="com.oracle.xiaomi.pojo"
         targetProject=".\src">
         <!-- enableSubPackages:是否让schema作为包的后缀 -->
         <property name="enableSubPackages" value="false" />
         <!-- 从数据库返回的值被清理前后的空格 -->
         <property name="trimStrings" value="true" />
      </javaModelGenerator>
        <!-- targetProject:mapper映射文件生成的位置 -->
      <sqlMapGenerator targetPackage="com.oracle.xiaomi.mapper" 
         targetProject=".\src">
         <!-- enableSubPackages:是否让schema作为包的后缀 -->
         <property name="enableSubPackages" value="false" />
      </sqlMapGenerator>
      <!-- targetPackage：mapper接口生成的位置 -->
      <javaClientGenerator type="XMLMAPPER"
         targetPackage="com.oracle.xiaomi.mapper" 
         targetProject=".\src">
         <!-- enableSubPackages:是否让schema作为包的后缀 -->
         <property name="enableSubPackages" value="false" />
      </javaClientGenerator>
      <!-- 指定数据库表 -->
      <table schema="" tableName="admin"></table>
      <table schema="" tableName="product_type"></table>
      <table schema="" tableName="product_info"></table>
   </context>
</generatorConfiguration>

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