Spring整合SpringMVC + Mybatis基礎框架的配置文件

時間 2021-08-12

標籤 java mysql web spring sql 數據庫 express api spring-mvc session 欄目 Spring 简体版

原文原文鏈接

目錄java

前言
1. Mybatis層編寫
2. Spring層編寫
- 1. Spring整合Mybatis
- 2. Spring整合service
3. SpringMVC層編寫
- 1. 編寫web.xml
- 2. 編寫spring-mvc.xml
4. Spring配置整合文件，applicationContext.xml
依賴

前言

新建一個普通的Maven項目mysql

基本目錄結構web

├── src                   	# 
│   ├── main               	# 
│   │	└── java           	# java代碼目錄
│   │	└── resources       # 配置文件目錄, 存放下面Spring配置文件
│   ├── test           		# 單元測試目錄
├── web                   	# web目錄
│   └── WEB-INF           	# web.xml 配置文件目錄

1. Mybatis層編寫

一、在 resources 目錄下新建數據庫配置文件 database.propertiesspring

jdbc.driver=com.mysql.jdbc.Driver
# 若是是使用 MySQL8.0+ 那麼還須要增長一個時區的配置; serverTimezone=Asia/Shanghai
jdbc.url=jdbc:mysql://localhost:3306/ssmbuild?useSSL=true&useUnicode=true&characterEncoding=utf8
jdbc.username=root
jdbc.password=123456

二、在 resources 目錄下建立Mybatis配置文件 mybatis-config.xmlsql

<?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>
    <!--配置數據源, 交給Spring-->
    
    <!--配置log-->
    <settings>
        <!--STDOUT_LOGGING: 標準的日誌工廠實現-->
        <setting name="logImpl" value="STDOUT_LOGGING"/>
    </settings>
    
    <!--配置別名-->
    <typeAliases>
        <package name="com.pro.pojo"/>
    </typeAliases>

    <!--綁定Mapper-->
    <mappers>
        <mapper class="com.pro.dao.BooksMapper"/>
    </mappers>

</configuration>

2. Spring層編寫

1. Spring整合Mybatis

配置Spring整合MyBatis，這裏數據源使用c3p0鏈接池；數據庫
編寫Spring整合Mybatis的相關的配置文件；在 resources 目錄下建立 spring-dao.xmlexpress

注意：這裏要引入上面Mybatis層的兩個配置文件，配置文件的名稱不要寫錯api

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

    <!--1. 關聯數據庫配置文件-->
    <context:property-placeholder location="classpath:database.properties"/>

    <!--2. 鏈接池
        dbcp: 半自動化操做, 不能自動鏈接
        c3p0: 自動化操做 (自動加載配置文件並設置到對象中)
        druid, hikari
    -->
    <bean id="dataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource">
        <property name="driverClass" value="${jdbc.driver}"/>
        <property name="jdbcUrl" value="${jdbc.url}"/>
        <property name="user" value="${jdbc.username}"/>
        <property name="password" value="${jdbc.password}"/>

        <!--c3p0鏈接池的私有屬性, 最大最小鏈接池大小-->
        <property name="maxPoolSize" value="30"/>
        <property name="minPoolSize" value="10"/>
        <!--關閉鏈接後不自動commit-->
        <property name="autoCommitOnClose" value="false"/>
        <!--鏈接超時-->
        <property name="checkoutTimeout" value="10000"/>
        <!--獲取鏈接失敗重試次數-->
        <property name="acquireRetryAttempts" value="2"/>
    </bean>

    <!--3. sqlSessionFactory-->
    <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
        <property name="dataSource" ref="dataSource"/>
        <!--綁定Mybatis配置文件-->
        <property name="configLocation" value="classpath:mybatis-config.xml"/>
    </bean>

    <!--4. 配置Dao掃描包, 動態實現Dao接口注入到Spring容器中-->
    <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
        <!--注入 sqlSessionFactory-->
        <property name="sqlSessionFactoryBeanName" value="sqlSessionFactory"/>
        <!--配置要掃描的dao包-->
        <property name="basePackage" value="com.pro.dao"/>
    </bean>
</beans>

2. Spring整合service

將業務層的類注入到Spring中，在 resources 目錄下建立 spring-service.xmlspring-mvc

<?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: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.xsd
       http://www.springframework.org/schema/context
       http://www.springframework.org/schema/context/spring-context.xsd
       http://www.springframework.org/schema/aop
       http://www.springframework.org/schema/aop/spring-aop.xsd
       http://www.springframework.org/schema/tx
       http://www.springframework.org/schema/tx/spring-tx.xsd">

    <!--1. 掃描service下的包-->
    <context:component-scan base-package="com.pro.service"/>

    <!--2. 將業務層的類注入到Spring中-->
    <bean id="BooksServiceImpl" class="com.pro.service.BooksServiceImpl">
        <property name="booksMapper" ref="booksMapper"/>
    </bean>

    <!--3. 配置聲明式事務-->
    <bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
        <!--注入數據源-->
        <property name="dataSource" ref="dataSource"/>
    </bean>

    <!--4. 配置aop實現事務織入-->
    <!--配置事務通知-->
    <tx:advice id="txAdvice" transaction-manager="transactionManager">
        <!--1. 給那些方法配置事務-->
        <!--2. 配置事務的傳播特性: propagation-->
        <tx:attributes>
            <tx:method name="*" propagation="REQUIRED"/>
        </tx:attributes>
    </tx:advice>

    <!--配置事務切入-->
    <aop:config>
        <!--mapper包下的全部類的全部方法-->
        <aop:pointcut id="txPointCut" expression="execution(* com.pro.dao.*.*(..))"/>
        <aop:advisor advice-ref="txAdvice" pointcut-ref="txPointCut"/>
    </aop:config>
</beans>

3. SpringMVC層編寫

1. 編寫web.xml

修改 WEB-INF 下的 web.xml 文件session

這裏引入Spring整合的配置文件 applicationContext.xml

<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns="https://jakarta.ee/xml/ns/jakartaee"
         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:schemaLocation="https://jakarta.ee/xml/ns/jakartaee https://jakarta.ee/xml/ns/jakartaee/web-app_5_0.xsd"
         version="5.0">

    <!--DispatchServlet-->
    <servlet>
        <servlet-name>springmvc</servlet-name>
        <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
        <!--加載Spring配置文件-->
        <init-param>
            <param-name>contextConfigLocation</param-name>
            <param-value>classpath:applicationContext.xml</param-value>
        </init-param>
        <!--啓動級別-->
        <load-on-startup>1</load-on-startup>
    </servlet>
    <servlet-mapping>
        <servlet-name>springmvc</servlet-name>
        <url-pattern>/</url-pattern>
    </servlet-mapping>

    <!--亂碼過濾-->
    <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>

    <!--Session過時時間-->
    <session-config>
        <session-timeout>15</session-timeout>
    </session-config>
</web-app>

2. 編寫spring-mvc.xml

在 resources 目錄下建立 spring-mvc.xml

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


    <!--1. 註解驅動-->
    <mvc:annotation-driven/>
    <!--2. 靜態資源過濾-->
    <mvc:default-servlet-handler/>
    <!--3. 掃描包: controller-->
    <context:component-scan base-package="com.pro.controller"/>
    <!--4. 視圖解析器-->
    <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
        <property name="prefix" value="/WEB-INF/jsp/"/>
        <property name="suffix" value=".jsp"/>
    </bean>

</beans>

4. Spring配置整合文件，applicationContext.xml

在 resources 目錄下建立 applicationContext.xml

這裏引入上面三個配置文件 spring-dao.xml、spring-service.xml、spring-mvc.xml 整合成一個總的配置文件

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
       xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
       xsi:schemaLocation="http://www.springframework.org/schema/beans
       http://www.springframework.org/schema/beans/spring-beans.xsd">

    <import resource="classpath:spring-dao.xml"/>
    <import resource="classpath:spring-service.xml"/>
    <import resource="classpath:spring-mvc.xml"/>

</beans>

依賴

<!--依賴-->
<dependencies>
    <dependency>
        <groupId>org.projectlombok</groupId>
        <artifactId>lombok</artifactId>
        <version>1.18.10</version>
    </dependency>
    <!--Junit-->
    <dependency>
        <groupId>junit</groupId>
        <artifactId>junit</artifactId>
        <version>4.13</version>
    </dependency>
    <!--數據庫驅動-->
    <dependency>
        <groupId>mysql</groupId>
        <artifactId>mysql-connector-java</artifactId>
        <version>5.1.47</version>
    </dependency>
    <!--數據庫鏈接池-->
    <dependency>
        <groupId>com.mchange</groupId>
        <artifactId>c3p0</artifactId>
        <version>0.9.5.2</version>
    </dependency>

    <!--Servlet - JSP -->
    <dependency>
        <groupId>javax.servlet</groupId>
        <artifactId>servlet-api</artifactId>
        <version>2.5</version>
    </dependency>
    <dependency>
        <groupId>javax.servlet.jsp</groupId>
        <artifactId>jsp-api</artifactId>
        <version>2.2</version>
    </dependency>
    <dependency>
        <groupId>javax.servlet</groupId>
        <artifactId>jstl</artifactId>
        <version>1.2</version>
    </dependency>

    <!--Mybatis-->
    <dependency>
        <groupId>org.mybatis</groupId>
        <artifactId>mybatis</artifactId>
        <version>3.5.2</version>
    </dependency>
    <dependency>
        <groupId>org.mybatis</groupId>
        <artifactId>mybatis-spring</artifactId>
        <version>2.0.2</version>
    </dependency>

    <!--Spring-->
    <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-webmvc</artifactId>
        <version>5.1.9.RELEASE</version>
    </dependency>
    <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-jdbc</artifactId>
        <version>5.1.9.RELEASE</version>
    </dependency>
    <dependency>
        <groupId>org.aspectj</groupId>
        <artifactId>aspectjweaver</artifactId>
        <version>1.9.4</version>
    </dependency>
</dependencies>

<!--靜態資源導出問題-->
<build>
    <resources>
        <resource>
            <directory>src/main/java</directory>
            <includes>
                <include>**/*.properties</include>
                <include>**/*.xml</include>
            </includes>
            <filtering>false</filtering>
        </resource>
        <resource>
            <directory>src/main/resources</directory>
            <includes>
                <include>**/*.properties</include>
                <include>**/*.xml</include>
            </includes>
            <filtering>false</filtering>
        </resource>
    </resources>
</build>