文章目录
SSM框架整合
两个IoC容器
-
MVC容器
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SpringMVC+JSON
DispatcherServlet类： Servlet
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业务容器
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Spring+mybatis
监听器： SevletContextListener
-
日志+lombok等
创建maven(javaee)项目
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<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns="http://java.sun.com/xml/ns/javaee"
xsi:schemaLocation="http://java.sun.com/xml/ns/javaee
http://java.sun.com/xml/ns/javaee/web-app_3_1.xsd" version="3.1">
<display-name>ssm-base</display-name>
</web-app>
引用maven依赖
相关依赖
- springwebmvc
- jackson
- spring-orm
- mybatis-spring
- mybatis
- druid
- mysql
- spring-test
- junit
- slf4j-log4j12
- lombok
POM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/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>com.dyit.ssm</groupId>
<artifactId>ssm-base</artifactId>
<version>0.0.1-SNAPSHOT</version>
<packaging>war</packaging>
<properties>
<project.spring.version>5.3.16</project.spring.version>
<project.lombok.version>1.18.12</project.lombok.version>
<project.json.version>2.13.1</project.json.version>
<project.mysql.version>8.0.28</project.mysql.version>
<project.druid.version>1.2.8</project.druid.version>
<project.mybatis.version>3.5.9</project.mybatis.version>
<project.mybatis-spring.version>2.0.7</project.mybatis-spring.version>
<project.junit.version>4.12</project.junit.version>
<project.log.version>1.7.5</project.log.version>
</properties>
<dependencies>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-webmvc</artifactId>
<version>${project.spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-orm</artifactId>
<version>${project.spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-test</artifactId>
<version>${project.spring.version}</version>
</dependency>
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<version>${project.mysql.version}</version>
</dependency>
<dependency>
<groupId>com.alibaba</groupId>
<artifactId>druid</artifactId>
<version>${project.druid.version}</version>
</dependency>
<dependency>
<groupId>org.mybatis</groupId>
<artifactId>mybatis-spring</artifactId>
<version>${project.mybatis-spring.version}</version>
</dependency>
<dependency>
<groupId>org.mybatis</groupId>
<artifactId>mybatis</artifactId>
<version>${project.mybatis.version}</version>
</dependency>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>${project.junit.version}</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.slf4j</groupId>
<artifactId>slf4j-log4j12</artifactId>
<version>${project.log.version}</version>
</dependency>
<dependency>
<groupId>org.projectlombok</groupId>
<artifactId>lombok</artifactId>
<version>${project.lombok.version}</version>
</dependency>
<dependency>
<groupId>com.fasterxml.jackson.core</groupId>
<artifactId>jackson-databind</artifactId>
<version>${project.json.version}</version>
</dependency>
</dependencies>
</project>
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SSM框架配置（结构)
结构
- log4j.properties
- web.xml
- 配置两个容器
配置
-
log4j.properties
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-
spring的容器
-
mvc容器
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-
业务容器
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druid.driver = com.mysql.cj.jdbc.Driver druid.url = jdbc:mysql://localhost:3306/mybatis_db?useUnicode=true&characterEncoding=utf8&useSSL=false&serverTimezone=UTC&allowPublicKeyRetrieval=true druid.username=root druid.password=1234 -
web.xml
<?xml version="1.0" encoding="UTF-8"?> <web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://java.sun.com/xml/ns/javaee" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_3_1.xsd" version="3.1"> <display-name>ssm-base</display-name> <context-param> <param-name>contextConfigLocation</param-name> <param-value>classpath:spring/mybatis/spring-*.xml</param-value> </context-param> <listener> <listener-class> org.springframework.web.context.ContextLoaderListener </listener-class> </listener> <servlet> <servlet-name>springDispatcherServlet</servlet-name> <servlet-class>org.springframework.web.servlet.DispatcherServlet </servlet-class> <init-param> <param-name>contextConfigLocation</param-name> <param-value>classpath:spring/mvc/springmvc-*.xml</param-value> </init-param> <load-on-startup>1</load-on-startup> </servlet> <servlet-mapping> <servlet-name>springDispatcherServlet</servlet-name> <url-pattern>/*</url-pattern> </servlet-mapping> </web-app>
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项目结构(包+前端)
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配置mvc容器
<?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-4.3.xsd
http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-4.3.xsd">
<context:component-scan base-package="com.dyit.ssm.controller"/>
<mvc:resources location="static/" mapping="static/**"/>
<mvc:annotation-driven/>
</beans>
配置业务容器
扫描类创建对象放入容器
<context:component-scan base-package="com.dyit.ssm">
<context:exclude-filter type="annotation" expression="org.springframework.stereotype.Controller"/>
</context:component-scan>
读取数源的配置信息、配置数据源
<context:property-placeholder location="classpath:spring/mybatis/druid/druid.properties"/>
<bean id="druid" class="com.alibaba.druid.pool.DruidDataSource">
<property name="url" value="${druid.url}"/>
<property name="username" value="${druid.usename}"/>
<property name="password" value="${druid.password}"/>
<property name="driverClassName" value="${druid.driver}"/>
</bean>
配置SqlSessionFactory
<bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
<property name="dataSource" ref="druid"/>
<property name="typeAliasesPackage" value="com.dyit.ssm.entity"/>
<property name="mapperLocations" value="classpath:spring/mybatis/mapper/*.mapper.xml"/>
</bean>
配置mybatis的辅助
<bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
<property name="basePackage" value="com.dyit.ssm.mapper"/>
<property name="sqlSessionFactoryBeanName" value="sqlSessionFactory"/>
</bean>
事务配置
<bean id="txManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
<property name="dataSource" ref="druid"/>
</bean>
<tx:annotation-driven transaction-manager="txManager"/>
实体类
@Alias("Publisher")
@Data
@NoArgsConstructor
@AllArgsConstructor
public class Publisher {
private Integer id;
private String name;
private String loc;
}
mapper接口
public interface IPublisherMapper {
List<Publisher> findAll();
}
mapper配置
<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE mapper PUBLIC
"-//mybatis.org//DTD Mapper 3.0//EN"
"http://mybatis.org/dtd/mybatis-3-mapper.dtd">
<mapper namespace="com.dyit.ssm.mapper.IPublisherMapper"><!-- 接口的位置 -->
<resultMap type="Publisher" id="PublisherMap">
<id property="id" column="publisher_id"/>
<result property="name" column="publisher_name"/>
<result property="loc" column="publisher_loc"/>
</resultMap>
<select id="findAll" resultMap="PublisherMap">
SELECT * FROM publisher_tab
</select>
</mapper>
service
public interface IPublisherService {
List<Publisher> findAll();
}
@Service
public class PublisherServiceImpl implements IPublisherService {
@Autowired
private IPublisherMapper mapper;
@Override
public List<Publisher> findAll() {
return mapper.findAll();
}
}
测试servicce
@ContextConfiguration(locations = "classpath:spring/mybatis/spring-mybatis.xml")
@RunWith(SpringJUnit4ClassRunner.class)
public class TestPublisherService {
@Autowired
private IPublisherService ips;
@Test
public void test() {
System.out.println(ips.findAll());
}
}
