spring ,springmvc,mybatis 最基本的整合，没有多余的jar包和依赖 2018.9.29日
2018-09-29 19:39
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最基本的ssm框架整合
本案例采用2018商业版intellij idea 编辑器 maven项目管理工具 tomcat8.5
接着上一篇使用springmvc最基本配置开始
https://www.cnblogs.com/qq376324789/p/9685125.html
1.首先在原来的基础上添加新的依赖 ，都是当前版本最高的依赖
<!-- https://mvnrepository.com/artifact/com.alibaba/druid -->
<dependency>
<groupId>com.alibaba</groupId>
<artifactId>druid</artifactId>
<version>1.1.11</version>
</dependency>
<!-- https://mvnrepository.com/artifact/org.springframework/spring-web -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-web</artifactId>
<version>5.1.0.RELEASE</version>
</dependency>
<!-- https://mvnrepository.com/artifact/org.springframework/spring-webmvc -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-webmvc</artifactId>
<version>5.1.0.RELEASE</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-jdbc</artifactId>
<version>5.1.0.RELEASE</version>
</dependency>
<!-- https://mvnrepository.com/artifact/org.mybatis/mybatis-spring -->
<dependency>
<groupId>org.mybatis</groupId>
<artifactId>mybatis-spring</artifactId>
<version>1.3.2</version>
</dependency>
<!-- https://mvnrepository.com/artifact/org.mybatis/mybatis -->
<dependency>
<groupId>org.mybatis</groupId>
<artifactId>mybatis</artifactId>
<version>3.4.6</version>
</dependency>
2.配置web.xml ，让其启动spring容器
<!--让web容器初始化时初始化spring.xml--> <context-param> <param-name>contextConfigLocation</param-name> <param-value>classpath:spring.xml</param-value> </context-param> <listener> <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class> </listener>
3.配置spring.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:aop="http://www.springframework.org/schema/aop"
xmlns:context="http://www.springframework.org/schema/context"
xmlns:tx="http://www.springframework.org/schema/tx"
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/aop
http://www.springframework.org/schema/aop/spring-aop.xsd
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context.xsd
http://www.springframework.org/schema/tx
http://www.springframework.org/schema/tx/spring-tx.xsd
http://www.springframework.org/schema/task http://www.springframework.org/schema/task/spring-task-3.1.xsd
">
<!-- 启用注解 -->
<context:annotation-config />
<task:annotation-driven/>
<context:component-scan base-package="com.service"/>
<context:component-scan base-package="com.dao"/>
<!--读取配置文件；可以读取多个-->
<bean id="propertyConfigurer" class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer">
<property name="locations">
<list>
<value>classpath:dbconfig.properties</value>
</list>
</property>
</bean>
<!--配置数据库连接-->
<bean name="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
<property name="dataSource" ref="dataSource"></property>
</bean>
<!-- 阿里 druid数据库连接池 -->
<bean id="dataSource" class="com.alibaba.druid.pool.DruidDataSource" destroy-method="close">
<!-- 数据库基本信息配置 -->
<property name="url" value="${url}" />
<property name="username" value="${username}" />
<property name="password" value="${password}" />
<property name="driverClassName" value="${driverClassName}" />
<property name="filters" value="${filters}" />
<!-- 最大并发连接数 -->
<property name="maxActive" value="${maxActive}" />
<!-- 初始化连接数量 -->
<property name="initialSize" value="${initialSize}" />
<!-- 配置获取连接等待超时的时间 -->
<property name="maxWait" value="${maxWait}" />
<!-- 最小空闲连接数 -->
<property name="minIdle" value="${minIdle}" />
<!-- 配置间隔多久才进行一次检测，检测需要关闭的空闲连接，单位是毫秒 -->
<property name="timeBetweenEvictionRunsMillis" value="${timeBetweenEvictionRunsMillis}" />
<!-- 配置一个连接在池中最小生存的时间，单位是毫秒 -->
<property name="minEvictableIdleTimeMillis" value="${minEvictableIdleTimeMillis}" />
<property name="validationQuery" value="${validationQuery}" />
<property name="testWhileIdle" value="${testWhileIdle}" />
<property name="testOnBorrow" value="${testOnBorrow}" />
<property name="testOnReturn" value="${testOnReturn}" />
<property name="maxOpenPreparedStatements" value="${maxOpenPreparedStatements}" />
<!-- 打开removeAbandoned功能 -->
<property name="removeAbandoned" value="${removeAbandoned}" />
<!-- 1800秒，也就是30分钟 -->
<property name="removeAbandonedTimeout" value="${removeAbandonedTimeout}" />
<!-- 关闭abanded连接时输出错误日志 -->
<property name="logAbandoned" value="${logAbandoned}" />
</bean>
<!--事物声明配置-->
<tx:advice id="txAdvice" transaction-manager="transactionManager">
<tx:attributes>
<tx:method name="delete*" propagation="REQUIRED" read-only="false"
rollback-for="java.lang.Exception"/>
<tx:method name="insert*" propagation="REQUIRED" read-only="false"
rollback-for="java.lang.Exception" />
<tx:method name="update*" propagation="REQUIRED" read-only="false"
rollback-for="java.lang.Exception" />
<tx:method name="save*" propagation="REQUIRED" read-only="false"
rollback-for="java.lang.Exception" />
</tx:attributes>
</tx:advice>
<aop:aspectj-autoproxy proxy-target-class="true"/>
<!-- 事务处理 service -->
<aop:config>
<aop:pointcut id="pc" expression="execution(* com.service..*(..))" />
<aop:advisor pointcut-ref="pc" advice-ref="txAdvice" />
</aop:config>
<!---->
<bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
<property name="dataSource" ref="dataSource" />
<property name="configLocation" value="classpath:mybatis-config.xml"/>
<property name="mapperLocations" value="classpath:mybatis/*.xml"/>
</bean>
<!--表示自动扫描con.sowell.dao下的每个mapper映射文件-->
<bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
<property name="basePackage" value="com.dao" />
<property name="sqlSessionFactoryBeanName" value="sqlSessionFactory" />
</bean>
</beans>
4.配置数据库连接
dbconfig.properties
url:jdbc:mysql://localhost:3306/skjd?useUnicode=true&characterEncoding=utf8&characterSetResults=utf8 driverClassName:com.mysql.jdbc.Driver username:root password:root filters:stat maxActive:20 initialSize:1 maxWait:60000 minIdle:10 maxIdle:15 timeBetweenEvictionRunsMillis:60000 minEvictableIdleTimeMillis:300000 validationQuery:SELECT 'x' testWhileIdle:true testOnBorrow:false testOnReturn:false maxOpenPreparedStatements:20 removeAbandoned:true removeAbandonedTimeout:1800 logAbandoned:true
5.配置
mybatis-config.xml
<?xml version="1.0" encoding="UTF-8"?> <!DOCTYPE configuration PUBLIC "-//mybatis.org//DTD SQL Map Config 3.0//EN" "http://mybatis.org/dtd/mybatis-3-config.dtd"> <configuration> <settings> <setting name="cacheEnabled" value="true" /><!-- 全局映射器启用缓存 --> <setting name="useGeneratedKeys" value="true" /> <setting name="defaultExecutorType" value="REUSE" /> </settings> </configuration>
6.测试mapper文件
<?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.dao.TestDao" > <select id="get" resultType="java.lang.Integer"> select count(*) from tb_line </select> </mapper>
7.接口
package com.dao;
public interface TestDao {
int get();
}
8.service
package com.service;
import com.dao.TestDao;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
@Service
public class TestService {
@Autowired
private TestDao testDao;
public int get(){
return testDao.get();
}
}
9.controller
package com.controller;
import com.service.TestService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.ResponseBody;
@Controller
public class Controller01 {
@Autowired
private TestService testService;
@RequestMapping("test2")
public String test02(){
int i= testService.get();
System.out.println(i);
System.out.println(123);
return "index";
}
@RequestMapping("test3")
@ResponseBody
public int test03(){
System.out.println(123);
return testService.get();
}
}
10截图目录结构
如果大家也使用的是idea编辑器
记得将jdk的jar包和tomcat的jar添加进来。不然会报错
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