SSM搭建博客系統（四）：更詳細的配置

時間 2019-12-07

標籤 ssm 搭建博客系統詳細配置简体版

原文原文鏈接

1、mybatis-config.xml

mybatis-config.xml是mybatis配置的核心文件，在此項目中將會被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>
    <!-- 開啓駝峯匹配 -->
    <settings>
        <setting name="mapUnderscoreToCamelCase" value="true"/>
    </settings>
    <!-- 別名 -->
    <typeAliases>
        <!--存放實體類的package-->
        <package name="com.blog.entity" />
    </typeAliases>
    <plugins>
        <plugin interceptor="tk.mybatis.mapper.mapperhelper.MapperInterceptor">
            <!--主鍵自增回寫方法,默認值MYSQL,詳細說明請看文檔HSQLDB-->
            <property name="IDENTITY" value="MYSQL"/>

            <!--可選參數一共3個，對應0,1,2,分別爲SequenceName，ColumnName,PropertyName-->
            <property name="seqFormat" value="{0}.nextval"/>

            <!--通用Mapper接口，多個通用接口用逗號隔開-->
            <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，此配置文件能夠是Spring自動加載Mybatis的SqlSession相關類，並把繁雜的Mybatis會話操做封裝起來了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">

    <!-- 自動掃描 -->
    <context:component-scan base-package="com.blog.service.impl"/>

    <!--加載jdbc相關的配置文件-->
    <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>

    <!-- 配置數據源 -->
    <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}"/>
        <!-- 初始化鏈接大小 -->
        <property name="initialSize" value="${initialSize}"/>
        <!-- 鏈接池最大數量 -->
        <property name="maxActive" value="${maxActive}"/>
        <!-- 鏈接池最大空閒 -->
        <property name="maxIdle" value="${maxIdle}"/>
        <!-- 鏈接池最小空閒 -->
        <property name="minIdle" value="${minIdle}"/>
        <!-- 獲取鏈接最大等待時間 -->
        <property name="maxWait" value="${maxWait}"/>
    </bean>

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

        <!-- 自動掃描mapping.xml文件 -->
        <property name="mapperLocations" value="classpath:mapping/*.xml"/>
    </bean>

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


    <!-- 事務管理-->
    <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 />
    <!-- 自動掃描 -->
    <context:component-scan base-package="com.blog.controller"/>
    <mvc:annotation-driven />

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


    <!-- 配置靜態資源訪問地址-->
    <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，加載配置文件也是從這個文件開始加載的。web

這裏要注意幾個問題：spring

spring配置文件的加載在這裏spring配置文件不是自動加載的，而是使用sql
```
<param-value>classpath:springMVC-servlet.xml</param-value>
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```
來配置，因此spring核心配置文件應該放在resources文件夾中。apache
日誌配置以前要加上spring-mvc

<context-param>
        <param-name>webAppRootKey</param-name>
        <param-value>webApp.root</param-value>
    </context-param>
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spring與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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來加載。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>

    <!--配置日誌-->
    <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>

    <!-- 編碼過濾器 解決POST亂碼問題-->
    <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監聽器 -->
    <listener>
        <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
    </listener>

    <!-- 防止spring內存溢出監聽器，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配置文件的讀取路徑，Spring配置文件能夠不放到WEB-INF文件夾下-->
            <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>

    <!-- 指明對於以下資源文件不採用spring的過濾器 -->
    <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, 失效時間爲15分鐘 -->
    <session-config>
        <session-timeout>15</session-timeout>
    </session-config>

</web-app>
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