整合Spring + SpringMVC + Mybatis基础框架的配置文件

淡淡的烟草味﹌ 2021-09-21 16:08 266阅读 0赞

### 目录 ###

*  前言
 *  1. Mybatis层编写
 *  2. Spring层编写
 *   *  1. Spring整合Mybatis
     *  2. Spring整合service
 *  3. SpringMVC层编写
 *   *  1. 编写web.xml
     *  2. 编写spring-mvc.xml
 *  4. Spring配置整合文件，applicationContext.xml
 *  依赖

# 前言 #

新建一个普通的Maven项目

基本目录结构

├── src                   	# 
    │   ├── main               	# 
    │   │	└── java           	# java代码目录
    │   │	└── resources       # 配置文件目录, 存放下面Spring配置文件
    │   ├── test           		# 单元测试目录
    ├── web                   	# web目录
    │   └── WEB-INF           	# web.xml 配置文件目录

# 1. Mybatis层编写 #

1、在 `resources` 目录下新建数据库配置文件 `database.properties`

jdbc.driver=com.mysql.jdbc.Driver
    # 如果是使用 MySQL8.0+ 那么还需要增加一个时区的配置; serverTimezone=Asia/Shanghai
    jdbc.url=jdbc:mysql://localhost:3306/ssmbuild?useSSL=true&useUnicode=true&characterEncoding=utf8
    jdbc.username=root
    jdbc.password=123456

2、在 `resources` 目录下创建Mybatis配置文件 `mybatis-config.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="STDOUT_LOGGING"/>
        </settings>
        
        
        <typeAliases>
            <package name="com.pro.pojo"/>
        </typeAliases>
    
        
        <mappers>
            <mapper class="com.pro.dao.BooksMapper"/>
        </mappers>
    
    </configuration>

# 2. Spring层编写 #

## 1. Spring整合Mybatis ##

1.  配置**Spring整合MyBatis**，这里数据源使用c3p0连接池；
2.  编写Spring整合Mybatis的相关的配置文件；在 `resources` 目录下创建 `spring-dao.xml`

注意：这里要引入上面Mybatis层的两个配置文件，配置文件的名称不要写错

<?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">
    
        
        <context:property-placeholder location="classpath:database.properties"/>
    
        
        <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}"/>
    
            
            <property name="maxPoolSize" value="30"/>
            <property name="minPoolSize" value="10"/>
            
            <property name="autoCommitOnClose" value="false"/>
            
            <property name="checkoutTimeout" value="10000"/>
            
            <property name="acquireRetryAttempts" value="2"/>
        </bean>
    
        
        <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
            <property name="dataSource" ref="dataSource"/>
            
            <property name="configLocation" value="classpath:mybatis-config.xml"/>
        </bean>
    
        
        <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
            
            <property name="sqlSessionFactoryBeanName" value="sqlSessionFactory"/>
            
            <property name="basePackage" value="com.pro.dao"/>
        </bean>
    </beans>

## 2. Spring整合service ##

将业务层的类注入到Spring中，在 `resources` 目录下创建 `spring-service.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: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">
    
        
        <context:component-scan base-package="com.pro.service"/>
    
        
        <bean id="BooksServiceImpl" class="com.pro.service.BooksServiceImpl">
            <property name="booksMapper" ref="booksMapper"/>
        </bean>
    
        
        <bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
            
            <property name="dataSource" ref="dataSource"/>
        </bean>
    
        
        
        <tx:advice id="txAdvice" transaction-manager="transactionManager">
            
            
            <tx:attributes>
                <tx:method name="*" propagation="REQUIRED"/>
            </tx:attributes>
        </tx:advice>
    
        
        <aop:config>
            
            <aop:pointcut id="txPointCut" expression="execution(* com.pro.dao.*.*(..))"/>
            <aop:advisor advice-ref="txAdvice" pointcut-ref="txPointCut"/>
        </aop:config>
    </beans>

# 3. SpringMVC层编写 #

## 1. 编写web.xml ##

修改 `WEB-INF` 下的 `web.xml` 文件

这里引入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">
    
        
        <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:applicationContext.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>
    
        
        <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-config>
            <session-timeout>15</session-timeout>
        </session-config>
    </web-app>

## 2. 编写spring-mvc.xml ##

在 `resources` 目录下创建 `spring-mvc.xml`

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

在 `resources` 目录下创建 `applicationContext.xml`

这里引入上面三个配置文件 `spring-dao.xml`、`spring-service.xml`、`spring-mvc.xml` 整合成一个总的配置文件

<?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>

# 依赖 #

<dependencies>
        <dependency>
            <groupId>org.projectlombok</groupId>
            <artifactId>lombok</artifactId>
            <version>1.18.10</version>
        </dependency>
        
        <dependency>
            <groupId>junit</groupId>
            <artifactId>junit</artifactId>
            <version>4.13</version>
        </dependency>
        
        <dependency>
            <groupId>mysql</groupId>
            <artifactId>mysql-connector-java</artifactId>
            <version>5.1.47</version>
        </dependency>
        
        <dependency>
            <groupId>com.mchange</groupId>
            <artifactId>c3p0</artifactId>
            <version>0.9.5.2</version>
        </dependency>
    
        
        <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>
    
        
        <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>
    
        
        <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>
    
    
    <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>