SSM整合

SSM = Spring + SpringMvc + Mybatis

进入正题

配置spring-mvc.xml

配置视图解析器

<bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
        <property name="prefix" value="/WEB-INF/views/"/>
        <property name="suffix" value=".jsp"/>
</bean>

配置注解驱动和消息转换器

<mvc:annotation-driven>
        <mvc:message-converters>
            <bean class="com.alibaba.fastjson.support.spring.FastJsonHttpMessageConverter"/>
        </mvc:message-converters>
</mvc:annotation-driven>

放行静态资源

<mvc:resources mapping="/static/**" location="static/"/>

扫描controller

<!--这里在里面设置了context:include-filter type=@Controller表示只扫描有@Controller注解的类，使其进入Spring的容器之中-->
<context:component-scan base-package="com.antake.ssm.controller">
        <context:include-filter type="annotation" expression="org.springframework.stereotype.Controller" />
</context:component-scan>

配置登录拦截器（选）

<!--mvc:exclude-mapping不过滤那些请求，LoginInterceptor为自定义拦截器，功能就是判断有没有登录，未登录的跳转到登录页面-->
<mvc:interceptors>
        <mvc:interceptor>
            <mvc:mapping path="/**"/>
            <mvc:exclude-mapping path="/"/>
            <mvc:exclude-mapping path="/login"/>
            <mvc:exclude-mapping path="/static/**"/>
            <bean class="com.antake.ssm.interceptor.LoginInterceptor"/>
        </mvc:interceptor>
</mvc:interceptors>

public class LoginInterceptor implements HandlerInterceptor {
    public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler) throws Exception {
        Object user=request.getSession().getAttribute("user");
        if (user!=null){
            return true;
        }
          response.sendRedirect(request.getContextPath()+"/login");
        return false;
    }
}

配置spring-mybatis.xml

配置数据源

db.properties

driverClassName=com.mysql.cj.jdbc.Driver
jdbcUrl=jdbc:mysql://localhost:3306/exam?serverTimezone=Asia/Shanghai&useSSL=false&allowPublicKeyRetrieval=true
#如果数据库版本过高需要加上 &useUnicode=true&characterEncoding=utf8
user=root
password=root

引入db.properties,配置数据源

<content:property-placeholder location="classpath:db.properties"/>

<bean id="dataSource" class="com.zaxxer.hikari.HikariDataSource">
        <property name="driverClassName" value="${driverClassName}"/>
        <property name="jdbcUrl" value="${jdbcUrl}"/>
        <property name="username" value="${user}"/>
        <property name="password" value="${password}"/>
        <property name="readOnly" value="false"/>
        <property name="connectionTimeout" value="30000"/>
        <property name="idleTimeout" value="600000"/>
        <property name="maxLifetime" value="1800000"/>
        <property name="maximumPoolSize" value="60"/>
        <property name="minimumIdle" value="10"/>
</bean>

配置session会话工厂

<bean id="sqlSessionFactoryBean" class="org.mybatis.spring.SqlSessionFactoryBean">
        <property name="dataSource" ref="dataSource"/>
        <property name="mapperLocations" value="classpath:mapper/*Mapper.xml"/>
        <!--取别名，也就是pojo|entity|model的包，扫描了之后别名就是类名小写-->
        <property name="typeAliasesPackage" value="com.antake.ssm.pojo"/>

<!--映射日志文件-->
    <property name="configLocation" value="classpath:mybatis-log.xml"/>
  </bean>
  ```

配置mapper扫描器

<bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
        <property name="sqlSessionFactoryBeanName" value="sqlSessionFactoryBean"/>
        <property name="basePackage" value="com.antake.ssm.dao"/>
    <!--只扫描@Mapper-->    
    <property name="annotationClass" value="org.apache.ibatis.annotations.Mapper"/>
</bean>

配置事务管理器

<bean id="dataSourceTransactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
        <property name="dataSource" ref="dataSource"/>
    	<!--enforceReadOnly,如果全是只从数据库拿数据的操作，为了安全设置成true-->
        <property name="enforceReadOnly" value="false"/>
</bean>

配置事务管理方法

<tx:advice id="transactionInterceptor" transaction-manager="dataSourceTransactionManager">
    	<!--tx:attributes里面是要添加事务的方法，propagation是事务隔离级别，isolation是数据库隔离级别，rollback-for发生xxx异常就回滚-->
        <tx:attributes>
            <tx:method name="get*" propagation="REQUIRED" read-only="true"/>
            <tx:method name="update*" propagation="REQUIRED" isolation="REPEATABLE_READ" rollback-for="java.lang.Exception"/>
        </tx:attributes>
</tx:advice>

配置aop，aop和事务联合起来才能管理事务

<aop:config>
        <aop:pointcut id="pc" expression="execution(* com.antake.ssm.service..*.*(..))"/>
        <aop:advisor advice-ref="transactionInterceptor" pointcut-ref="pc"/>
</aop:config>

扫描service

<content:component-scan base-package="com.antake.ssm.service">
        <content:include-filter type="annotation" expression="org.springframework.stereotype.Service"/>
</content:component-scan>

配置web.xml

配置spring-mybatis配置文件

    <context-param>
        <param-name>contextConfigLocation</param-name>
        <param-value>classpath:spring-mybatis.xml</param-value>
    </context-param>

配置过滤器解决乱码问题

    <filter>
        <filter-name>encodingFilter</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>encodingFilter</filter-name>
        <url-pattern>/*</url-pattern>
    </filter-mapping>

配置核心监听器

<listener>
        <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
    </listener>

spring前端控制器dispatcherservlet

    <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>
        <load-on-startup>1</load-on-startup>
    </servlet>
    <servlet-mapping>
        <servlet-name>springMvc</servlet-name>
        <url-pattern>/</url-pattern>
    </servlet-mapping>

配置log4j

log4j.rootLogger=INFO, console, file


log4j.appender.console=org.apache.log4j.ConsoleAppender
log4j.appender.console.layout=org.apache.log4j.PatternLayout
log4j.appender.console.layout.ConversionPattern=%d %p [%c] - %m%n

log4j.appender.file=org.apache.log4j.DailyRollingFileAppender
log4j.appender.file.File=logs/log.log
log4j.appender.file.layout=org.apache.log4j.PatternLayout
log4j.appender.A3.MaxFileSize=1024KB
log4j.appender.A3.MaxBackupIndex=10
log4j.appender.file.layout.ConversionPattern=%d %p [%c] - %m%n

mybatis-log.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>
    <settings>
        <setting name="logImpl" value="log4j"/>
    </settings>
</configuration>

posted @ 2020-04-24 14:13 Antake 阅读(125) 评论(0) 收藏举报

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Antake

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SSM整合

SSM整合

SSM = Spring + SpringMvc + Mybatis

进入正题

配置spring-mvc.xml

配置spring-mybatis.xml

配置web.xml

配置log4j

mybatis-log.xml

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