Spring SpringMvc Mybatis 整合即SSM整合
阿新 • • 發佈：2022-02-13
前言
整合SSM是學習Spring、SpringMvc和Mybatis更加深層的理解，本篇也僅列舉常用配置，僅供初學者配置和自己日後查閱。本篇採用idea開發結合maven使得專案配置更加簡單。
本文預設讀者會maven專案建立，已省略idea中maven建立流程，若需要後續出教程
1. maven中pom.xml檔案配置
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd"> <modelVersion>4.0.0</modelVersion> <packaging>war</packaging> <!-- maven專案名稱，請根據自身專案修改--> <name>tireless</name> <groupId>cn.tireless</groupId> <artifactId>tireless</artifactId> <version>1.0-SNAPSHOT</version> <properties> <!-- 設定maven打包編碼--> <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding> <!-- 打包和編譯環境jdk1.8--> <maven.compiler.source>1.8</maven.compiler.source> <maven.compiler.target>1.8</maven.compiler.target> </properties> <dependencies> <!-- SpringMVC核心包 --> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-webmvc</artifactId> <version>4.3.7.RELEASE</version> </dependency> <!-- Spring JDBC --> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-jdbc</artifactId> <version>4.3.7.RELEASE</version> </dependency> <!-- aspects框架包已包含 Spring AOP --> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-aspects</artifactId> <version>4.3.7.RELEASE</version> </dependency> <!-- MyBatis依賴包 --> <dependency> <groupId>org.mybatis</groupId> <artifactId>mybatis</artifactId> <version>3.4.2</version> </dependency> <!-- MyBatis整合Spring的適配包 --> <dependency> <groupId>org.mybatis</groupId> <artifactId>mybatis-spring</artifactId> <version>1.3.1</version> </dependency> <!-- 這裡採用C3P0資料來源可更換其他資料來源，其他資料來源請修改配置檔案 --> <dependency> <groupId>c3p0</groupId> <artifactId>c3p0</artifactId> <version>0.9.1.2</version> </dependency> <!-- ServletAPI --> <dependency> <groupId>javax.servlet</groupId> <artifactId>javax.servlet-api</artifactId> <version>3.0.1</version> <scope>provided</scope> </dependency> <!-- junit單元測試包--> <dependency> <groupId>junit</groupId> <artifactId>junit</artifactId> <version>4.12</version> <scope>test</scope> </dependency> <!-- 單元測試註解包--> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-test</artifactId> <version>4.3.7.RELEASE</version> </dependency> <!-- slf4j日誌包--> <dependency> <groupId>org.slf4j</groupId> <artifactId>slf4j-api</artifactId> <version>1.7.30</version> </dependency> <!-- MySQL 5版本驅動，若使用mysql8.0需修改 --> <dependency> <groupId>mysql</groupId> <artifactId>mysql-connector-java</artifactId> <version>5.1.47</version> </dependency> </dependencies> <build> <plugins> </plugins> <finalName>tireless</finalName> <resources> <resource> <directory>src/main/java</directory> <includes> <include>**/*.xml</include> </includes> </resource> <resource> <directory>src/main/resources</directory> <includes> <include>*.xml</include> <include>*.properties</include> </includes> </resource> <resource> <directory>src/main/webapp</directory> <includes> <include>**/*.html</include> </includes> </resource> </resources> <pluginManagement><!-- lock down plugins versions to avoid using Maven defaults (may be moved to parent pom) --> <plugins> <plugin> <artifactId>maven-clean-plugin</artifactId> <version>3.0.0</version> </plugin> <!-- see http://maven.apache.org/ref/current/maven-core/default-bindings.html#Plugin_bindings_for_war_packaging --> <plugin> <artifactId>maven-resources-plugin</artifactId> <version>3.0.2</version> </plugin> <plugin> <artifactId>maven-compiler-plugin</artifactId> <version>3.7.0</version> </plugin> <plugin> <artifactId>maven-surefire-plugin</artifactId> <version>2.20.1</version> </plugin> <plugin> <artifactId>maven-war-plugin</artifactId> <version>3.2.0</version> </plugin> <plugin> <artifactId>maven-install-plugin</artifactId> <version>2.5.2</version> </plugin> <plugin> <artifactId>maven-deploy-plugin</artifactId> <version>2.8.2</version> </plugin> </plugins> </pluginManagement> </build> </project>
2. Spring配置檔案applicationContext.xml配置（ps：建議命名為applicationContext.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/aop http://www.springframework.org/schema/aop/spring-aop-4.3.xsd http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-4.3.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd"> <!-- 載入外部檔案 這裡載入的是資料庫配置檔案--> <context:property-placeholder location="classpath:dbconfig.properties"/> <!-- 開啟IOC掃描 這裡是根據自身專案掃描，僅掃描service包下 --> <context:component-scan base-package="com.ssm.service"/> <!-- 配置 C3P0 資料來源 --> <bean id="dataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource" > <property name="user" value="${jdbc.user}"/> <property name="password" value="${jdbc.password}"/> <property name="driverClass" value="${jdbc.driverClass}"/> <property name="jdbcUrl" value="${jdbc.jdbcUrl}"/> <property name="initialPoolSize" value="${jdbc.initialSize}"/> <property name="maxPoolSize" value="10"/> </bean> <!-- 配置MyBatis SqlSessionFactory --> <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean"> <!-- 指定MyBatis 資料來源 --> <property name="dataSource" ref="dataSource"/> <!-- 指定MyBatis mapper檔案的位置 --> <property name="mapperLocations" value="classpath:com/ssm/mapper/*.xml"/> <!-- 指定MyBatis全域性配置檔案的位置 --> <property name="configLocation" value="classpath:mybatis-config.xml"/> </bean> <!--掃描MyBatis的mapper介面 --> <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer"> <!--掃描所有dao介面的實現，加入到ioc容器中 --> <property name="basePackage" value="cn.xyes.mapper"/> </bean> <!-- 開啟Spring事務 --> <bean id="txManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager"> <property name="dataSource" ref="dataSource" /> </bean> <!-- 開啟事務註解 --> <tx:annotation-driven transaction-manager="txManager" /> </beans>
3.SpringMVC配置檔案springmvc.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:mvc="http://www.springframework.org/schema/mvc" 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/mvc http://www.springframework.org/schema/mvc/spring-mvc.xsd"> <!-- 告知spring，啟用springmvc的註解驅動 annotation： 註解--> <mvc:annotation-driven /> <!--component ： 元件--> <!-- 掃描Controller包下類 --> <context:component-scan base-package="com.ssm.controller"> </context:component-scan> <!-- 註解驅動 --> <mvc:annotation-driven/> <!-- 配置檢視解析器 --> <bean id="viewResolver" class="org.springframework.web.servlet.view.InternalResourceViewResolver"> <property name="prefix" value="/"/> <property name="suffix" value=".html"/> </bean> <mvc:view-controller path="/" /> <mvc:default-servlet-handler/> </beans>
3.Mybatis配置檔案，這裡大部分已經配置到spring的配置檔案中，因此配置內容比較少
<?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>
<!-- 列印SQL-->
<setting name="logImpl" value="STDOUT_LOGGING" />
</settings>
<typeAliases>
<!-- 指定一個包名，MyBatis會在包名下搜尋需要的JavaBean(即dao層包)-->
<package name="com.ssm.mapper"/>
</typeAliases>
</configuration>
4.資料庫配置檔案dbconfig.properties配置
jdbc.jdbcUrl=jdbc:mysql://localhost:3306/demo?useUnicode=true&characterEncoding=UTF-8
jdbc.driverClass=com.mysql.jdbc.Driver
jdbc.user=root
jdbc.password=123456
jdbc.maxTotal=30
jdbc.maxIdle=20
jdbc.initialSize=5
5.web.xml配置
<?xml version="1.0" encoding="UTF-8"?>
<web-app version="2.4"
xmlns="http://java.sun.com/xml/ns/j2ee"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd">
<!-- 載入Spring -->
<context-param>
<param-name>
contextConfigLocation
</param-name>
<param-value>
classpath:applicationContext.xml
</param-value>
</context-param>
<!-- Listener監聽 -->
<listener>
<listener-class>
org.springframework.web.context.ContextLoaderListener
</listener-class>
</listener>
<!-- 載入靜態資源 -->
<servlet-mapping>
<servlet-name>default</servlet-name>
<url-pattern>*.js</url-pattern>
</servlet-mapping>
<servlet-mapping>
<servlet-name>default</servlet-name>
<url-pattern>*.css</url-pattern>
</servlet-mapping>
<servlet-mapping>
<servlet-name>default</servlet-name>
<url-pattern>*.jpg</url-pattern>
</servlet-mapping>
<servlet-mapping>
<servlet-name>default</servlet-name>
<url-pattern>*.gif</url-pattern>
</servlet-mapping>
<servlet-mapping>
<servlet-name>default</servlet-name>
<url-pattern>*.png</url-pattern>
</servlet-mapping>
<servlet-mapping>
<servlet-name>default</servlet-name>
<url-pattern>*.html</url-pattern>
</servlet-mapping>
<!--springmvc前端核心控制器-->
<servlet>
<servlet-name>springmvc</servlet-name>
<servlet-class>
org.springframework.web.servlet.DispatcherServlet
</servlet-class>
<!-- 初始化載入配置檔案-->
<init-param>
<param-name>contextConfigLocation</param-name>
<param-value>classpath:springmvc.xml</param-value>
</init-param>
<load-on-startup>1</load-on-startup>
</servlet>
<!-- 字元編碼過濾器，一定要放在所有過濾器之前 -->
<!-- 字元編碼過濾器 -->
<filter>
<filter-name>CharacterEncodingFilter</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>CharacterEncodingFilter</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>
<servlet-mapping>
<servlet-name>springmvc</servlet-name>
<url-pattern>/</url-pattern>
</servlet-mapping>
</web-app>
5.SSM專案目錄預覽
總結
本篇SSM整合配置目的是能讓學過但未整合過的同學複製粘貼後即可食用，因為博主剛開始整合是也走過不少彎路，配置檔案東湊西湊就是跑不起來，所以記錄一下，實際中ssm使用並不多（現在大多使用springboot）ssm僅為初學者必經學習的專案，博主也有整合redis和jwt配置檔案，和一些整合遇到的坑，如果需要幫助可以留言或者私信我。因水平有限若有不合理指出請評論指出，謝謝。