springMVC是位于spring web端的一个框架,是一种基于Java的实现了Web MVC设计模式的请求驱动类型的轻量级Web框架,即使用了MVC架构模式的思想,将web层进行职责解耦。
下面我们以 https://gitee.com/00fly/java-code-frame/tree/master/springmvc-dbutils 为例来说明:
如何复用此SpringMVC工程的非web部分代码,并脱离web环境使之独立运行。
applicationContext.xml
<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:cache="http://www.springframework.org/schema/cache"
xmlns:task="http://www.springframework.org/schema/task"
xsi:schemaLocation="http://www.springframework.org/schema/aop
http://www.springframework.org/schema/aop/spring-aop.xsd
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/cache
http://www.springframework.org/schema/cache/spring-cache.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.xsd">
<context:component-scan base-package="com.fly" use-default-filters="true">
<context:exclude-filter type="annotation" expression="org.springframework.stereotype.Controller" />
<context:exclude-filter type="annotation" expression="org.springframework.web.bind.annotation.RestController" />
<context:exclude-filter type="annotation" expression="org.springframework.web.bind.annotation.ControllerAdvice" />
<context:exclude-filter type="assignable" expression="com.fly.core.config.SwaggerConfig" />
context:component-scan>
<context:property-placeholder location="classpath:jdbc.properties" />
<bean id="dataSource" class="com.alibaba.druid.pool.DruidDataSource" destroy-method="close">
<property name="url" value="${jdbc.url}" />
<property name="username" value="${jdbc.username}" />
<property name="password" value="${jdbc.password}" />
<property name="driverClassName" value="${jdbc.driver}" />
<property name="initialSize" value="1" />
<property name="maxActive" value="100" />
<property name="minIdle" value="5" />
<property name="maxWait" value="3000" />
<property name="timeBetweenEvictionRunsMillis" value="6000" />
<property name="minEvictableIdleTimeMillis" value="30000" />
<property name="validationQuery" value="SELECT 'x'" />
<property name="testWhileIdle" value="true" />
<property name="testOnBorrow" value="false" />
<property name="testOnReturn" value="false" />
<property name="poolPreparedStatements" value="false" />
<property name="maxPoolPreparedStatementPerConnectionSize" value="0" />
<property name="filters" value="stat,wall,log4j2" />
bean>
<bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
<property name="dataSource" ref="dataSource" />
bean>
<task:annotation-driven />
<bean id="queryRunner" class="org.apache.commons.dbutils.QueryRunner">
<constructor-arg ref="dataSource" />
bean>
<bean id="jdbcTemplate" class="org.springframework.jdbc.core.JdbcTemplate">
<property name="dataSource" ref="dataSource" />
bean>
<aop:aspectj-autoproxy proxy-target-class="true" />
<tx:annotation-driven transaction-manager="transactionManager" proxy-target-class="true" />
beans>
spring-mvc.xml
<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:mvc="http://www.springframework.org/schema/mvc"
xsi:schemaLocation="http://www.springframework.org/schema/aop
http://www.springframework.org/schema/aop/spring-aop.xsd
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/tx
http://www.springframework.org/schema/tx/spring-tx.xsd">
<context:component-scan base-package="com.fly.**.controller" use-default-filters="false">
<context:include-filter type="annotation" expression="org.springframework.stereotype.Controller" />
<context:include-filter type="annotation" expression="org.springframework.web.bind.annotation.RestController" />
<context:include-filter type="annotation" expression="org.springframework.web.bind.annotation.ControllerAdvice" />
context:component-scan>
<context:component-scan base-package="com.fly.core.config" />
<bean id="validator" class="org.springframework.validation.beanvalidation.LocalValidatorFactoryBean" />
<mvc:annotation-driven />
<aop:aspectj-autoproxy proxy-target-class="true" />
<mvc:default-servlet-handler/>
<bean id="viewResolver" class="org.springframework.web.servlet.view.InternalResourceViewResolver">
<property name="viewClass" value="org.springframework.web.servlet.view.JstlView" />
<property name="prefix" value="/WEB-INF/views" />
<property name="suffix" value=".jsp" />
bean>
beans>
@Slf4j
public class MainRun
{
/**
* Main
*
* @param args
* @see [类、类#方法、类#成员]
*/
public static void main(String[] args)
{
ApplicationContext context = new ClassPathXmlApplicationContext("applicationContext.xml");
Assert.notNull(context, "context is null");
log.info("###### Application Started Success ######");
Arrays.stream(context.getBeanDefinitionNames()).forEach(log::info);
}
}
至此可以看到,此代码至加载WebApplicationContext上下文完全可以脱离web环境运行。
在项目根目录下执行 mvn clean package
会在target文件夹下生成如下文件:
进入target\classes文件
java -Djava.ext.dirs=../lib com.fly.MainRun
借助maven-shade-plugin插件(推荐)
pom-jar-extract.xml 插件部分配置
<plugin>
<groupId>org.apache.maven.pluginsgroupId>
<artifactId>maven-shade-pluginartifactId>
<version>3.4.0version>
<executions>
<execution>
<phase>packagephase>
<goals>
<goal>shadegoal>
goals>
<configuration>
<minimizeJar>falseminimizeJar>
<filters>
<filter>
<artifact>*:*artifact>
filter>
filters>
<transformers>
<transformer implementation="org.apache.maven.plugins.shade.resource.ManifestResourceTransformer">
<mainClass>com.fly.MainRunmainClass>
transformer>
<transformer implementation="org.apache.maven.plugins.shade.resource.AppendingTransformer">
<resource>META-INF/spring.handlersresource>
transformer>
<transformer implementation="org.apache.maven.plugins.shade.resource.AppendingTransformer">
<resource>META-INF/spring.schemasresource>
transformer>
transformers>
configuration>
execution>
executions>
plugin>
mvn clean package -f pom-jar-extract.xml
进入target执行
java -jar springmvc-dbutils.jar
运行结果
至此,我们已经实现了SpringMVC工程之非web部分代码复用,并借助插件打成Jar,实现独立运行!
有任何问题和建议,都可以向我提问讨论,大家一起进步,谢谢!
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