新项目自己撘框架,想着用点新的。看慕课网 Java 高并发秒杀 API 的系列课程时很受益。所以想着仿着来使用:Mavan-Spring-SpringMVC-Mybatis 的架构。框架整合的代码我已上传到我的 Github:maven-mybatis-spring-springmvc。
本示例是在:Ubuntu15 上实现的;Windows 上安装 Maven 将不太相同。
Maven Install
2016-09-10 更新:较新版 Eclipse 都有集成 Maven,所以并不需要安装
- Run command
sudo apt-get install maven
, to install the latest Apache Maven. - Run command
mvn -version to verify
your installation. - Where is Maven installed?
The command apt-get
install the Maven in /usr/share/maven
The Maven configuration files are stored in /etc/maven
Eclipse Maven Plugin - m2e
2016-09-10 更新:较新版 Eclipse 都有集成 Maven,所以并不需要安装
- open Eclipse -> Help -> click “Install New Software” -> click “add”
Name:m2e Location:http://download.eclipse.org/technology/m2e/releases
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- click “ok” -> click “Maven Integration for Eclipse” -> click “Next”
- restrat Eclipse
- config m2e -> Window -> Preferences -> Maven -> Installations -> click “Add…” -> select Maven
Create a Maven Project
- File -> New -> New Maven project
- select “Use default Workspace location”
- select “maven-archetype-j2ee-simple”
- input info -> Finish
- 选中项目右键菜单中选择 Properties -> Project Facets -> select “Dynamic Web Module” Version “3.1”
Tips:
- 如果在
Project Facets
选择版本时“can not change”,可以在项目目录下手动修改 .settings/org.eclipse.wst.common.project.facet.core.xml
文件配置 - 项目自动生成的
web.xml
版本较低,手动修改
<web-app xmlns="http://xmlns.jcp.org/xml/ns/javaee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-app_3_1.xsd" version="3.1" metadata-complete="true"> </web-app>
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├── src ├── main | ├── java //java源代码 | ├── resources //配置资源文件 | └── webapp //web文件 | └── test └── java //junit测试
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pom.xml Config
Github-maven-mybatis-spring-springmvc pom.xml
<dependency> <groupId>junit</groupId> <artifactId>junit</artifactId> <version>4.11</version> <scope>test</scope> </dependency>
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logback.xml Config
<configuration> <appender name="STDOUT" class="ch.qos.logback.core.ConsoleAppender">
<encoder> <pattern>%d{HH:mm:ss.SSS} [%thread] %-5level %logger{36} - %msg%n </pattern> </encoder> </appender> <root level="info"> <appender-ref ref="STDOUT" /> </root> </configuration>
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Mybatis Config
Github-maven-mybatis-spring-springmvc mybatis-config.xml
<configuration> <settings> <setting name="useGeneratedKeys" value="true" /> <setting name="useColumnLabel" value="true" /> <setting name="mapUnderscoreToCamelCase" value="true" /> </settings> </configuration>
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Spring Config
Github-maven-mybatis-spring-springmvc spring
Spring-DAO Config
<context:property-placeholder location="classpath:jdbc.properties" />
<bean id="dataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource">
<property name="driverClass" value="${jdbc.driverClassName}" /> <property name="jdbcUrl" value="${jdbc.dburl}" /> <property name="user" value="${jdbc.username}" /> <property name="password" value="${jdbc.password}" />
<property name="maxPoolSize" value="${jdbc.maxPoolSize}" /> <property name="minPoolSize" value="${jdbc.minPoolSize}" /> <property name="autoCommitOnClose" value="false" /> <property name="checkoutTimeout" value="1000" /> <property name="acquireRetryAttempts" value="2" /> </bean>
<bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean"> <property name="dataSource" ref="dataSource" /> <property name="configLocation" value="classpath:mybatis-config.xml" /> <property name="typeAliasesPackage" value="com.moma.dmv.entity" /> <property name="mapperLocations" value="classpath:mapper/*.xml" /> </bean>
<bean class="org.mybatis.spring.mapper.MapperScannerConfigurer"> <property name="sqlSessionFactoryBeanName" value="sqlSessionFactory" /> <property name="basePackage" value="com.moma.dmv.dao" /> </bean>
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Spring-Service Config
<context:component-scan base-package="com.moma.dmv.service" />
<bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager"> <property name="dataSource" ref="dataSource" /> </bean>
<tx:annotation-driven transaction-manager="transactionManager" />
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Spring-Web Config
<mvc:annotation-driven />
<mvc:default-servlet-handler />
<bean class="org.springframework.web.servlet.view.InternalResourceViewResolver"> <property name="viewClass" value="org.springframework.web.servlet.view.JstlView" /> <property name="prefix" value="/WEB-INF/jsp/" /> <property name="suffix" value=".jsp" /> </bean>
<mvc:resources location="/resources/" mapping="/resources/**" />
<context:component-scan base-package="com.moma.dmv.web" />
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DAO Mapper Example
<?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.moma.dmv.dao.InfoDao">
<select id="queryById" resultType="Info" parameterType="long"> <![CDATA[ select id,`key`,`value` from info where id = #{id} ]]> </select>
<select id="queryAll" resultType="Info"> <![CDATA[ select id,key,value from info limit #{offset},#{limit} ]]> </select>
</mapper>
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web.xml Config
<servlet> <servlet-name>dmv-dispatcher</servlet-name> <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<init-param> <param-name>contextConfigLocation</param-name> <param-value>classpath:spring/spring-*.xml</param-value> </init-param> </servlet> <servlet-mapping> <servlet-name>dmv-dispatcher</servlet-name> <url-pattern>/</url-pattern> </servlet-mapping>
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JUnit Example
import javax.annotation.Resource;
import org.junit.Test; import org.junit.runner.RunWith; import org.slf4j.Logger; import org.slf4j.LoggerFactory; import org.springframework.test.context.ContextConfiguration; import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;
import com.moma.dmv.dao.InfoDao; import com.moma.dmv.entity.Info;
RunWith(SpringJUnit4ClassRunner.class) ContextConfiguration(locations = { "classpath:spring/spring-dao.xml" }) public class InfoDaoTest {
@Resource private InfoDao infoDao; private Logger logger = LoggerFactory.getLogger(this.getClass());
@Test public void testQueryById() throws Exception { long id = 1; Info info = infoDao.queryById(id); logger.info(info.toString()); } }
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References