1、创立Model
2、导入依赖
<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> <groupId>com.xiaoan</groupId> <artifactId>ssm</artifactId> <packaging>war</packaging> <version>1.0-SNAPSHOT</version> <name>ssm Maven Webapp</name> <url>http://maven.apache.org</url> <properties> <spring.version>5.3.1</spring.version> </properties> <dependencies> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-context</artifactId> <version>${spring.version}</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-beans</artifactId> <version>${spring.version}</version> </dependency> <!--springmvc--> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-web</artifactId> <version>${spring.version}</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-webmvc</artifactId> <version>${spring.version}</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-jdbc</artifactId> <version>${spring.version}</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-aspects</artifactId> <version>${spring.version}</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-test</artifactId> <version>${spring.version}</version> </dependency> <!-- Mybatis外围 --> <dependency> <groupId>org.mybatis</groupId> <artifactId>mybatis</artifactId> <version>3.5.7</version> </dependency> <!--mybatis和spring的整合包--> <dependency> <groupId>org.mybatis</groupId> <artifactId>mybatis-spring</artifactId> <version>2.0.6</version> </dependency> <!-- 连接池 --> <dependency> <groupId>com.alibaba</groupId> <artifactId>druid</artifactId> <version>1.0.9</version> </dependency> <!-- junit测试 --> <dependency> <groupId>junit</groupId> <artifactId>junit</artifactId> <version>4.12</version> <scope>test</scope> </dependency> <!-- MySQL驱动 --> <dependency> <groupId>mysql</groupId> <artifactId>mysql-connector-java</artifactId> <version>8.0.16</version> </dependency> <!-- log4j日志 --> <dependency> <groupId>log4j</groupId> <artifactId>log4j</artifactId> <version>1.2.17</version> </dependency> <!-- https://mvnrepository.com/artifact/com.github.pagehelper/pagehelper --> <dependency> <groupId>com.github.pagehelper</groupId> <artifactId>pagehelper</artifactId> <version>5.2.0</version> </dependency> <!-- 日志 --> <dependency> <groupId>ch.qos.logback</groupId> <artifactId>logback-classic</artifactId> <version>1.2.3</version> </dependency> <!-- ServletAPI --> <dependency> <groupId>javax.servlet</groupId> <artifactId>javax.servlet-api</artifactId> <version>3.1.0</version> <scope>provided</scope> </dependency> <!--解决json的依赖--> <dependency> <groupId>com.fasterxml.jackson.core</groupId> <artifactId>jackson-databind</artifactId> <version>2.12.1</version> </dependency> <!--文件上传依赖--> <dependency> <groupId>commons-fileupload</groupId> <artifactId>commons-fileupload</artifactId> <version>1.3.1</version> </dependency> <!-- Spring5和Thymeleaf整合包 --> <dependency> <groupId>org.thymeleaf</groupId> <artifactId>thymeleaf-spring5</artifactId> <version>3.0.12.RELEASE</version> </dependency> </dependencies> <build> <finalName>ssm</finalName> </build></project>
3、创立表
CREATE TABLE `t_emp` ( `emp_id` int(11) NOT NULL AUTO_INCREMENT, `emp_name` varchar(20) DEFAULT NULL, `age` int(11) DEFAULT NULL, `sex` char(1) DEFAULT NULL, `email` varchar(50) DEFAULT NULL, PRIMARY KEY (`emp_id`)) ENGINE=InnoDB DEFAULT CHARSET=utf8;
4、配置web.xml
<!DOCTYPE web-app PUBLIC "-//Sun Microsystems, Inc.//DTD Web Application 2.3//EN" "http://java.sun.com/dtd/web-app_2_3.dtd" ><web-app> <!--1、配置Spring的编码过滤器--> <filter> <filter-name>CharacterEncodingFilter</filter-name> <filter-class>org.springframework.web.filter.CharacterEncodingFilter</filter-class> <!--初始化申请自定义字符集编码--> <init-param> <param-name>encoding</param-name> <param-value>UTF-8</param-value> </init-param> <!--初始化响应自定义字符集编码--> <init-param> <param-name>forceEncoding</param-name> <param-value>true</param-value> </init-param> </filter> <filter-mapping> <filter-name>CharacterEncodingFilter</filter-name> <url-pattern>/*</url-pattern> </filter-mapping> <!--2、配置解决申请形式PUT和DELETE的过滤器--> <filter> <filter-name>HiddenHttpMethodFilter</filter-name> <filter-class>org.springframework.web.filter.HiddenHttpMethodFilter</filter-class> </filter> <filter-mapping> <filter-name>HiddenHttpMethodFilter</filter-name> <url-pattern>/*</url-pattern> </filter-mapping> <!--3、配置SpringMVC的前端控制器--> <servlet> <servlet-name>DispatcherServlet</servlet-name> <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class> <!--设置SpringMVC的配置文件的地位和名称--> <init-param> <param-name>contextConfigLocation</param-name> <param-value>classpath:SpringMVC.xml</param-value> </init-param> <load-on-startup>1</load-on-startup> </servlet> <servlet-mapping> <servlet-name>DispatcherServlet</servlet-name> <url-pattern>/</url-pattern> </servlet-mapping> <!--4、设置Spring的配置文件的地位和名称--> <context-param> <param-name>contextConfigLocation</param-name> <param-value>classpath:Spring.xml</param-value> </context-param> <!--5、配置Spring的监听器--> <listener> <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class> </listener></web-app>
5、创立SpringMVC的配置文件并配置
<?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" xmlns:aop="http://www.springframework.org/schema/aop" 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"> <!--扫描管制层组件--> <context:component-scan base-package="com.xiaoan.controller"></context:component-scan> <!--配置视图解析器--> <bean id="viewResolver" class="org.thymeleaf.spring5.view.ThymeleafViewResolver"> <property name="order" value="1"/> <property name="characterEncoding" value="UTF-8"/> <property name="templateEngine"> <bean class="org.thymeleaf.spring5.SpringTemplateEngine"> <property name="templateResolver"> <bean class="org.thymeleaf.spring5.templateresolver.SpringResourceTemplateResolver"> <!-- 视图前缀 --> <property name="prefix" value="/WEB-INF/templates/"/> <!-- 视图后缀 --> <property name="suffix" value=".html"/> <property name="templateMode" value="HTML5"/> <property name="characterEncoding" value="UTF-8" /> </bean> </property> </bean> </property> </bean> <!--配置拜访首页的视图管制--> <mvc:view-controller path="/" view-name="index"></mvc:view-controller> <!--配置默认的servlet解决动态资源--> <mvc:default-servlet-handler/> <!--开启MVC的注解驱动--> <mvc:annotation-driven/> <!--配置文件上传解析器--> <bean id="multipartResolver" class="org.springframework.web.multipart.commons.CommonsMultipartResolver"/> <!--异样处理器--> <bean id="exceptionResolver" class="org.springframework.web.servlet.handler.SimpleMappingExceptionResolver"/></beans>
6、创立Spring的配置文件并配置
<?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"> <!--扫描组件(除管制层) --> <context:component-scan base-package="com.xiaoan"> <context:exclude-filter type="annotation" expression="org.springframework.stereotype.Controller"/> </context:component-scan> <!--引入jdbc.properties--> <context:property-placeholder location="classpath:jdbc.properties"></context:property-placeholder> <!--配置Druid数据源--> <bean id="dataSource" class="com.alibaba.druid.pool.DruidDataSource"> <property name="driverClassName" value="${jdbc.driver}"></property> <property name="url" value="${jdbc.url}"></property> <property name="username" value="${jdbc.username}"></property> <property name="password" value="${jdbc.password}"></property> </bean> <!--配置用于创立SqlSessionFactory的工厂Bean--> <bean class="org.mybatis.spring.SqlSessionFactoryBean"> <!--设置MyBatits外围配置文件的门路--> <property name="configLocation" value="classpath:mybatis-config.xml"></property> <!--设置数据源--> <property name="dataSource" ref="dataSource"></property> <!--设置类型别名所对应的包--> <property name="typeAliasesPackage" value="com.xiaoan.pojo"></property> <!-- 设置映射文件的门路 若映射文件所在门路和mapper接口所在门路统一，则不须要设置 --><!-- <property name="mapperLocations" value="classpath:mappers/*.xml"></property>--> </bean> <!-- 配置mapper接口的扫描配置 由mybatis-spring提供，能够将指定包下所有的mapper接口创立动静代理 并将这些动静代理作为IOC容器的bean治理 --> <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer"> <property name="basePackage" value="com.xiaoan.mapper"></property> </bean></beans>
7、搭建MyBatis环境
7.1 创立属性文件jdbc.properties
jdbc.username=rootjdbc.password=rootjdbc.url=jdbc:mysql://localhost:3306/ssm?serverTimezone=UTCjdbc.driver=com.mysql.cj.jdbc.Driver
7.2 创立Mybatis外围配置文件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> <!-- Mybatis外围配置文件中标签程序： 从前到后： properties?,settings?,typeAliases?, typeHandlers?,objectFactory?, objectWrapperFactory?,reflectorFactory?, plugins?,environments?,databaseIdProvider?, mappers? --> <settings> <!--将下划线映射为驼峰命名--> <setting name="mapUnderscoreToCamelCase" value="true"/> <!--开启提早加载--> <setting name="lazyLoadingEnabled" value="true"/> <!--是否开启残缺加载 false 按需加载--> <setting name="aggressiveLazyLoading" value="false"/> </settings></configuration>
7.3 创立Mapper接口和映射文件
mapper接口public interface EmployeeMapper {List<Employee> getEmployeeList();}
映射文件<?xml version="1.0" encoding="UTF-8" ?><!DOCTYPE mapperPUBLIC "-//mybatis.org//DTD Mapper 3.0//EN""http://mybatis.org/dtd/mybatis-3-mapper.dtd"><mapper namespace="com.atguigu.ssm.mapper.EmployeeMapper"> <select id="getEmployeeList" resultType="Employee"> select * from t_emp </select></mapper>
7.4 创立日志文件log4j.xml
<?xml version="1.0" encoding="UTF-8" ?><!DOCTYPE log4j:configuration SYSTEM "log4j.dtd"><log4j:configuration xmlns:log4j="http://jakarta.apache.org/log4j/"> <appender name="STDOUT" class="org.apache.log4j.ConsoleAppender"> <param name="Encoding" value="UTF-8" /> <layout class="org.apache.log4j.PatternLayout"> <param name="ConversionPattern" value="%-5p %d{MM-dd HH:mm:ss,SSS} %m (%F:%L) \n" /> </layout> </appender> <logger name="java.sql"> <level value="debug" /> </logger> <logger name="org.apache.ibatis"> <level value="info" /> </logger> <root> <level value="debug" /> <appender-ref ref="STDOUT" /> </root></log4j:configuration>