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Basic construction of SSM framework
2022-06-26 06:03:00 【Source code Xiao Liu】
Preface ： Whether working or studying , We often need to build our own project framework , College students or beginners often encounter unknown mistakes , Waste time on this , Now let's talk about SSM Framework construction and basic use , Whether to use IDEA still Eclipse , maven Project built ssm Same frame structure , The following example uses IDEA Create .
1.IEAD Use Maven Create project
As shown in the figure below , According to the prompt next
reminder , Please make sure your computer is installed maven And configured environment variables , It is best to configure Alibaba image acceleration .
The project directory is as follows ：
We need to add some configuration ,ssm The basic configuration of the is as follows ：
2. To configure SSM frame
2.1 pom.xml Add required jar package
<!--web mvc what is needed jar-->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-webmvc</artifactId>
<version>5.1.1.RELEASE</version>
</dependency>
<!-- https://mvnrepository.com/artifact/javax.servlet/javax.servlet-api -->
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>javax.servlet-api</artifactId>
<version>3.1.0</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>com.google.code.gson</groupId>
<artifactId>gson</artifactId>
<version>2.8.0</version>
</dependency>
<!--jackson-->
<!-- https://mvnrepository.com/artifact/com.fasterxml.jackson.core/jackson-databind -->
<dependency>
<groupId>com.fasterxml.jackson.core</groupId>
<artifactId>jackson-databind</artifactId>
<version>2.9.8</version>
</dependency>
<!-- https://mvnrepository.com/artifact/com.fasterxml.jackson.core/jackson-core -->
<dependency>
<groupId>com.fasterxml.jackson.core</groupId>
<artifactId>jackson-core</artifactId>
<version>2.9.8</version>
</dependency>
<!-- https://mvnrepository.com/artifact/com.fasterxml.jackson.core/jackson-annotations -->
<dependency>
<groupId>com.fasterxml.jackson.core</groupId>
<artifactId>jackson-annotations</artifactId>
<version>2.9.8</version>
</dependency>
<!--
spring-mvc
-->
<!--
database spring And mybatis Integration required jar
-->
<!-- https://mvnrepository.com/artifact/mysql/mysql-connector-java -->
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<version>5.1.35</version>
</dependency>
<!-- https://mvnrepository.com/artifact/org.mybatis/mybatis-spring -->
<dependency>
<groupId>org.mybatis</groupId>
<artifactId>mybatis-spring</artifactId>
<version>1.3.1</version>
</dependency>
<dependency>
<groupId>org.mybatis</groupId>
<artifactId>mybatis</artifactId>
<version>3.4.1</version>
</dependency>
<dependency>
<groupId>com.zaxxer</groupId>
<artifactId>HikariCP</artifactId>
<version>2.7.7</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-jdbc</artifactId>
<version>5.0.0.RELEASE</version>
</dependency>
<dependency>
<groupId>org.mybatis</groupId>
<artifactId>mybatis-spring</artifactId>
<version>1.3.1</version>
</dependency>
<!-- https://mvnrepository.com/artifact/com.github.pagehelper/pagehelper -->
<dependency>
<groupId>com.github.pagehelper</groupId>
<artifactId>pagehelper</artifactId>
<version>5.1.2</version>
</dependency>
<!--
database spring And mybatis Integration required jar
-->
<dependency>
<groupId>org.apache.logging.log4j</groupId>
<artifactId>log4j-api</artifactId>
<version>2.0.2</version>
</dependency>
<dependency>
<groupId>org.apache.logging.log4j</groupId>
<artifactId>log4j-core</artifactId>
<version>2.0.2</version>
</dependency>
<dependency>
<groupId>org.apache.logging.log4j</groupId>
<artifactId>log4j-web</artifactId>
<version>2.0.2</version>
</dependency>
<!-- Spring AOP section modular -->
<!-- https://mvnrepository.com/artifact/org.springframework/spring-aop -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-aop</artifactId>
<version>5.0.8.RELEASE</version>
</dependency>
<dependency>
<groupId>org.aspectj</groupId>
<artifactId>aspectjrt</artifactId>
<version>1.9.2</version>
</dependency>
<dependency>
<groupId>org.aspectj</groupId>
<artifactId>aspectjweaver</artifactId>
<version>1.9.2</version>
</dependency>
<!--
test
-->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-test</artifactId>
<version>4.3.14.RELEASE</version>
</dependency>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>4.12</version>
<scope>test</scope>
</dependency>2.2 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>
<display-name>Archetype Created Web Application</display-name>
<servlet>
<servlet-name>DispatcherServlet</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<init-param>
<param-name>contextConfigLocation</param-name>
<param-value>classpath:spring-mvc.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>
</web-app>
2.3 spring-mybatis-mysql.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:tx="http://www.springframework.org/schema/tx"
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/tx http://www.springframework.org/schema/tx/spring-tx.xsd http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop.xsd">
<!-- Read multiple configuration files into the container , hand Spring management -->
<bean id="propertyConfigurer"
class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer">
<property name="locations">
<list>
<!-- Multiple addressing modes are supported here ：classpath and file -->
<value>classpath:db.properties</value>
</list>
</property>
</bean>
<bean id="dataSource" class="com.zaxxer.hikari.HikariDataSource">
<property name="username" value="${user}"/>
<property name="password" value="${password}"/>
<property name="driverClassName" value="${driverClassName}"/>
<property name="jdbcUrl" value="${jdbcUrl}"/>
<!-- When connecting to a read-only database, it is configured as true, Keep it safe -->
<property name="readOnly" value="false" />
<!-- The maximum length of time to wait for the connection pool to allocate the connection （ millisecond ）, Connections that have not been available for more than this period of time occur SQLException, default :30 second -->
<property name="connectionTimeout" value="30000" />
<!-- A connection idle The maximum duration of a state （ millisecond ）, Timeout is released （retired）, default :10 minute -->
<property name="idleTimeout" value="600000" />
<!-- A connected life span （ millisecond ）, Time out and not used is released （retired）, default :30 minute , It is recommended to set the timeout less than the database 30 second , Reference resources MySQL
wait_timeout Parameters （show variables like '%timeout%';） -->
<property name="maxLifetime" value="1800000" />
<!-- The maximum number of connections allowed in the connection pool . The default value ：10; Recommended formula ：((core_count * 2) + effective_spindle_count) -->
<property name="maximumPoolSize" value="60" />
<property name="minimumIdle" value="10" />
</bean>
<bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
<property name="dataSource" ref="dataSource" />
<property name="mapperLocations" value="classpath:mapper/*.xml" />
<!-- Note other configurations -->
<property name="plugins">
<array>
<bean class="com.github.pagehelper.PageInterceptor">
<property name="properties">
<!-- Use the following method to configure parameters , Configure one... Line by line -->
<value>
rowBoundsWithCount=true
PageRowBounds=true
offsetAsPageNum=true
pageSizeZero=true
reasonable=true
</value>
</property>
</bean>
</array>
</property>
<property name="configLocation" value="classpath:mybatis_configer.xml"></property><!-- To configure mybatis Logging of -->
</bean>
<!-- Scan dependency injection correlation interface -->
<bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
<property name="basePackage" value="com.dao"/>
<property name="sqlSessionFactoryBeanName" value="sqlSessionFactory"/>
</bean>
</beans>2.4 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:context="http://www.springframework.org/schema/context"
xmlns:mvc="http://www.springframework.org/schema/mvc" xmlns:task="http://www.springframework.org/schema/task"
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 http://www.springframework.org/schema/task http://www.springframework.org/schema/task/spring-task.xsd">
<!-- Enable spring mvc annotation -->
<import resource="spring-mybatis-mysql.xml"/>
<context:component-scan base-package="com"/>
<!-- Open annotation mode -->
<context:annotation-config />
<mvc:annotation-driven/>
<mvc:default-servlet-handler/> <!-- Access settings for static resources -->
<bean id="viewResolver" class="org.springframework.web.servlet.view.InternalResourceViewResolver">
<property name="suffix" value=".jsp"/>
</bean>
</beans>The directory structure is as follows ：
Control layer interface ：
@RequestMapping(value = "/getSqlList")
@ResponseBody
public void faff(){
System.out.println("----------------------mysql---------------------------");
List<Map<String, Object>> maps = userMapper.getAll2222();
maps.forEach(t-> System.out.println(t));
}Page effects will not be repeated , The effect of data request is as follows ：
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