SSM搭建博客系统（四）：更详细的配置

时间 2019-12-07

标签 ssm 搭建博客系统详细配置繁體版

原文原文链接

1、mybatis-config.xml

mybatis-config.xml是mybatis配置的核心文件，在此项目中将会被spring-mybatis.xml引用。php

<?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>
    <!-- 开启驼峰匹配 -->
    <settings>
        <setting name="mapUnderscoreToCamelCase" value="true"/>
    </settings>
    <!-- 别名 -->
    <typeAliases>
        <!--存放实体类的package-->
        <package name="com.blog.entity" />
    </typeAliases>
    <plugins>
        <plugin interceptor="tk.mybatis.mapper.mapperhelper.MapperInterceptor">
            <!--主键自增回写方法,默认值MYSQL,详细说明请看文档HSQLDB-->
            <property name="IDENTITY" value="MYSQL"/>

            <!--可选参数一共3个，对应0,1,2,分别为SequenceName，ColumnName,PropertyName-->
            <property name="seqFormat" value="{0}.nextval"/>

            <!--通用Mapper接口，多个通用接口用逗号隔开-->
            <property name="mappers" value="tk.mybatis.mapper.common.Mapper"/>
        </plugin>
    </plugins>
</configuration>
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2、spring-mybatis.xml

spring-mybatis.xml是spring和mybatis的整合配置文件，此配置文件能够是Spring自动加载Mybatis的SqlSession相关类，并把繁杂的Mybatis会话操做封装起来了css

<?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:context="http://www.springframework.org/schema/context" xmlns:tx="http://www.springframework.org/schema/tx" xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.1.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.1.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx.xsd">

    <!-- 自动扫描 -->
    <context:component-scan base-package="com.blog.service.impl"/>

    <!--加载jdbc相关的配置文件-->
    <bean id="configProperties" class="org.springframework.beans.factory.config.PropertiesFactoryBean">
        <property name="locations">
            <list>
                <value>classpath:jdbc.properties</value>
            </list>
        </property>
        <property name="fileEncoding" value="UTF-8"/>
    </bean>
    <!--引用上面的jdbc配置-->
    <bean id="propertyConfigurer" class="org.springframework.beans.factory.config.PreferencesPlaceholderConfigurer">
        <property name="properties" ref="configProperties"/>
    </bean>

    <!-- 配置数据源 -->
    <bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource" destroy-method="close">
        <property name="driverClassName" value="${driverClass}"/>
        <property name="url" value="${jdbcUrl}"/>
        <property name="username" value="${username}"/>
        <property name="password" value="${password}"/>
        <!-- 初始化链接大小 -->
        <property name="initialSize" value="${initialSize}"/>
        <!-- 链接池最大数量 -->
        <property name="maxActive" value="${maxActive}"/>
        <!-- 链接池最大空闲 -->
        <property name="maxIdle" value="${maxIdle}"/>
        <!-- 链接池最小空闲 -->
        <property name="minIdle" value="${minIdle}"/>
        <!-- 获取链接最大等待时间 -->
        <property name="maxWait" value="${maxWait}"/>
    </bean>

    <!-- 整合spring 与 Mybatis -->
    <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
        <!--引用配置好的数据源-->
        <property name="dataSource" ref="dataSource"/>
        <!-- 配置Mybatis的核心配置文件 -->
        <property name="configLocation" value="classpath:mybatis-config.xml" />

        <!-- 自动扫描mapping.xml文件 -->
        <property name="mapperLocations" value="classpath:mapping/*.xml"/>
    </bean>

    <!-- DAO接口所在包名，Spring会自动查找其下的类 -->
    <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
        <property name="basePackage" value="com.blog.dao"/>
        <property name="sqlSessionFactoryBeanName" value="sqlSessionFactory"/>
    </bean>


    <!-- 事务管理-->
    <bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
        <property name="dataSource" ref="dataSource"/>
    </bean>

    <tx:annotation-driven transaction-manager="transactionManager"/>
</beans>
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3、springMVC-servlet.xml

springMVC-servlet.xml是spring配置的核心文件java

<?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: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-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/mvc http://www.springframework.org/schema/mvc/spring-mvc-4.0.xsd">

    <mvc:default-servlet-handler />
    <!-- 自动扫描 -->
    <context:component-scan base-package="com.blog.controller"/>
    <mvc:annotation-driven />

    <!--视图配置-->
    <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
        <property name="prefix">
            <value>/</value>
        </property>
        <property name="suffix">
            <value>.jsp</value>
        </property>
    </bean>


    <!-- 配置静态资源访问地址-->
    <mvc:resources mapping="/images/**" location="/images/" cache-period="31556926"/>
    <mvc:resources mapping="/js/**" location="/js/" cache-period="31556926"/>
    <mvc:resources mapping="/css/**" location="/css/" cache-period="31556926"/>

</beans>
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4、web.xml

web.xml是web容器的配置文件，加载配置文件也是从这个文件开始加载的。web

这里要注意几个问题：spring

spring配置文件的加载在这里spring配置文件不是自动加载的，而是使用sql
```
<param-value>classpath:springMVC-servlet.xml</param-value>
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```
来配置，因此spring核心配置文件应该放在resources文件夹中。apache
日志配置以前要加上spring-mvc

<context-param>
        <param-name>webAppRootKey</param-name>
        <param-value>webApp.root</param-value>
    </context-param>
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spring与mybatis的整合配置文件依靠

<!--配置mybatis的配置文件-->
    <context-param>
        <param-name>contextConfigLocation</param-name>
        <param-value>
            classpath*:spring-mybatis.xml
        </param-value>
    </context-param>
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来加载。session

完整配置文件：mybatis

<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns="http://java.sun.com/xml/ns/javaee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd" version="3.0">

    <display-name>Blog</display-name>

    <context-param>
        <param-name>webAppRootKey</param-name>
        <param-value>webApp.root</param-value>
    </context-param>

    <!--配置日志-->
    <context-param>
        <param-name>log4jConfigLocation</param-name>
        <param-value>classpath:log4j.properties</param-value>
    </context-param>
    <listener>
        <listener-class>org.springframework.web.util.WebAppRootListener</listener-class>
    </listener>

    <context-param>
        <param-name>log4jRefreshInterval</param-name>
        <param-value>3000</param-value>
    </context-param>
    <!--配置mybatis的配置文件-->
    <context-param>
        <param-name>contextConfigLocation</param-name>
        <param-value>
            classpath*:spring-mybatis.xml
        </param-value>
    </context-param>

    <!-- 编码过滤器 解决POST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>

    <!-- spring监听器 -->
    <listener>
        <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
    </listener>

    <!-- 防止spring内存溢出监听器，好比quartz -->
    <listener>
        <listener-class>org.springframework.web.util.IntrospectorCleanupListener</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>
            <!--更改Spring配置文件的读取路径，Spring配置文件能够不放到WEB-INF文件夹下-->
            <param-value>classpath:springMVC-servlet.xml</param-value>
        </init-param>
        <load-on-startup>1</load-on-startup>
        <async-supported>true</async-supported>
    </servlet>
    <!-- servlet-mapping -->
    <servlet-mapping>
        <servlet-name>SpringMVC</servlet-name>
        <url-pattern>/</url-pattern>
    </servlet-mapping>

    <!-- 指明对于以下资源文件不采用spring的过滤器 -->
    <servlet-mapping>
        <servlet-name>default</servlet-name>
        <url-pattern>*.xml</url-pattern>
    </servlet-mapping>
    <servlet-mapping>
        <servlet-name>default</servlet-name>
        <url-pattern>*.css</url-pattern>
    </servlet-mapping>

    <welcome-file-list>
        <welcome-file>index.jsp</welcome-file>
    </welcome-file-list>

    <!-- session配置, 失效时间为15分钟 -->
    <session-config>
        <session-timeout>15</session-timeout>
    </session-config>

</web-app>
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