spring ,springmvc,mybatis 最基本的整合，沒有多餘的jar包和依賴 2018.9.29日
阿新 • • 發佈：2018-12-12
最基本的ssm框架整合
本案例採用2018商業版intellij idea 編輯器 maven專案管理工具 tomcat8.5
接著上一篇使用springmvc最基本配置開始
1.首先在原來的基礎上新增新的依賴 ，都是當前版本最高的依賴
<!-- 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 ，讓其啟動spring容器
<!--讓web容器初始化時初始化spring.xml-->
<context-param>
<param-name>contextConfigLocation</param-name>
<param-value>classpath:spring.xml</param-value>
</context-param>
<listener>
<listener-class
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 "> <!-- 啟用註解 --> <context:annotation-config /> <task:annotation-driven/> <context:component-scan base-package="com.service"/> <context:component-scan base-package="com.dao"/> <!--讀取配置檔案；可以讀取多個--> <bean id="propertyConfigurer" class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer"> <property name="locations"> <list> <value>classpath:dbconfig.properties</value> </list> </property> </bean> <!--配置資料庫連線--> <bean name="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager"> <property name="dataSource" ref="dataSource"></property> </bean> <!-- 阿里 druid資料庫連線池 --> <bean id="dataSource" class="com.alibaba.druid.pool.DruidDataSource" destroy-method="close"> <!-- 資料庫基本資訊配置 --> <property name="url" value="${url}" /> <property name="username" value="${username}" /> <property name="password" value="${password}" /> <property name="driverClassName" value="${driverClassName}" /> <property name="filters" value="${filters}" /> <!-- 最大併發連線數 --> <property name="maxActive" value="${maxActive}" /> <!-- 初始化連線數量 --> <property name="initialSize" value="${initialSize}" /> <!-- 配置獲取連線等待超時的時間 --> <property name="maxWait" value="${maxWait}" /> <!-- 最小空閒連線數 --> <property name="minIdle" value="${minIdle}" /> <!-- 配置間隔多久才進行一次檢測，檢測需要關閉的空閒連線，單位是毫秒 --> <property name="timeBetweenEvictionRunsMillis" value="${timeBetweenEvictionRunsMillis}" /> <!-- 配置一個連線在池中最小生存的時間，單位是毫秒 --> <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}" /> <!-- 開啟removeAbandoned功能 --> <property name="removeAbandoned" value="${removeAbandoned}" /> <!-- 1800秒，也就是30分鐘 --> <property name="removeAbandonedTimeout" value="${removeAbandonedTimeout}" /> <!-- 關閉abanded連線時輸出錯誤日誌 --> <property name="logAbandoned" value="${logAbandoned}" /> </bean> <!--事物宣告配置--> <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"/> <!-- 事務處理 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> <!--表示自動掃描con.sowell.dao下的每個mapper對映檔案--> <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer"> <property name="basePackage" value="com.dao" /> <property name="sqlSessionFactoryBeanName" value="sqlSessionFactory" /> </bean></beans>4.配置資料庫連線
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" /><!-- 全域性對映器啟用快取 -->
<setting name="useGeneratedKeys" value="true" />
<setting name="defaultExecutorType" value="REUSE" />
</settings>
</configuration>
6.測試mapper檔案
<?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.介面
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截圖目錄結構
如果大家也使用的是idea編輯器
記得將jdk的jar包和tomcat的jar新增進來。不然會報錯