maven+SSM+junit+jetty+log4j2环境配置的最佳实践
思路大致是 jetty插件 -> junit -> SpringMVC -> Spring -> log4j2 -> Mybatis整合
pom中的依赖跟着思路一批一批的来
创建项目
1、eclipse中创建一个maven项目，Packing选war，
Project Facts的Dynamic Web Module改成3.0，Java改成1.8。
2、创建后用Java EE Tools -> Generate Deployment Descriptor Stub生成WEB-INF目录。
错误消除。确保web.xml的version是3.0。
jetty插件
3、在src/main/resource下建立jetty目录，把编辑好的webdefault.xml放进去（webdefault.xml的取得和修改）。
在pom.xml里追加<build/>
<build> <plugins> <plugin> <groupId>org.eclipse.jetty</groupId> <artifactId>jetty-maven-plugin</artifactId> <version>9.4.6.v20170531</version> <configuration> <scanIntervalSeconds>60</scanIntervalSeconds> <webApp> <contextPath>/</contextPath> <defaultsDescriptor> src/main/resources/jetty/webdefault.xml </defaultsDescriptor> </webApp> <stopKey>shutdown</stopKey> <stopPort>8085</stopPort> </configuration> </plugin> <plugin> <groupId>org.apache.maven.plugins</groupId> <artifactId>maven-compiler-plugin</artifactId> <version>3.6.1</version> <configuration> <source>1.8</source> <target>1.8</target> </configuration> </plugin> </plugins> </build>
4、eclipse -> Run创建一个External Tools，
Main选项卡中Location指向maven客户端，
Working Directory指向本项目，
Arguments填jetty:run，
Environment选项卡中追加
MAVEN_OPTS
-Xdebug -Xnoagent -Djava.compiler=NONE -Xrunjdwp:transport=dt_socket,address=8090,server=y,suspend=y
5、创建一个Remote DEBUG，端口填8090
※ 红蓝先后启动后，服务器就正式启动了，
但是由于jetty默认首页被注释掉了，所以想要测试的话，
需要在webapp目录下写个html做测试（顺便可以试试热修改静态文件）。
6、想要关闭的话，创建一个External Tools即可，其中Arguments填jetty:stop，Environment中不追加参数
※ 默认端口号(8080)，DEBUG用端口号(8090)，关闭用端口号(8085)，三者最好不一致，避免不必要的麻烦。
Junit
7、pom.xml追加
junit
spring-test
SpringMVC
8、pom.xml中追加
spring-webmvc
servlet-api
9、web.xml追加DispatcherServlet，顺便把编码过滤器也加了
<servlet> <servlet-name>spring-webmvc</servlet-name> <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class> <init-param> <param-name>contextConfigLocation</param-name> <param-value>classpath:springframework/dispatcherservlet-servlet.xml</param-value> </init-param> <load-on-startup>1</load-on-startup> </servlet> <servlet-mapping> <servlet-name>spring-webmvc</servlet-name> <url-pattern>/</url-pattern> </servlet-mapping> <filter> <filter-name>encodingFilter</filter-name> <filter-class>org.springframework.web.filter.CharacterEncodingFilter</filter-class> <init-param> <param-name>encoding</param-name> <param-value>UTF-8</param-value> </init-param> <init-param> <param-name>forceEncoding</param-name> <param-value>true</param-value> </init-param> </filter> <filter-mapping> <filter-name>encodingFilter</filter-name> <url-pattern>/*</url-pattern> </filter-mapping>
10、src/main/resources的springframework中创建配置文件
dispatcherservlet-servlet.xml
<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" 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"> <!-- 处理静态资源 --> <mvc:default-servlet-handler /> <!-- 注解驱动 --> <mvc:annotation-driven /> <!-- 扫描controller --> <context:component-scan base-package="io.deolin.controller" /> <!-- 视图解析器 --> <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver"> <property name="prefix" value="/html/" /> <property name="suffix" value=".html" /> </bean> </beans>
※ SpringMVC完成，可以写个controller测试一下
Spring
11、需要spring-context依赖，但在spring-webmvc里面已经有了，所以pom.xml不用追加了
12、src/main/resources的springframework中创建配置文件
application-context.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" xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd"> <import resource="classpath:springframework/spring-*.xml" /> <bean class="io.spldeolin.bestpractice.util.ApplicationContext" /> </beans>
13、创建类io.deolin.util.ApplicationContext
package io.deolin.util; import org.springframework.context.ApplicationContextAware; public class ApplicationContext implements ApplicationContextAware { private static org.springframework.context.ApplicationContext applicationContext; @Override public void setApplicationContext(org.springframework.context.ApplicationContext applicationContext) { ApplicationContext.applicationContext = applicationContext; } public static org.springframework.context.ApplicationContext getApplicationContext() { return applicationContext; } public static Object getBean(String name) { return applicationContext.getBean(name); } }
14、web.xml追加Spring上下文监听器和上下文配置
<listener> <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class> </listener> <context-param> <param-name>contextConfigLocation</param-name> <param-value> classpath:springframework/application-context.xml </param-value> </context-param>
※ Spring完成，Spring上下文被映射到了工具类SpringContext，可以写个POJO，注册到application-context.xml中，测试一下
Log4j2
15、pom.xml中追加
log4j-web (里面包含了log4j2的api依赖 和 实现依赖)
log4j-jcl (使log4j2的实现依赖能适配到spring-core中commons logging的api依赖)
16、web.xml中追加Log4j2上下文监听器和过滤器
<listener> <listener-class>org.apache.logging.log4j.web.Log4jServletContextListener</listener-class> </listener> <filter> <filter-name>log4jServletFilter</filter-name> <filter-class>org.apache.logging.log4j.web.Log4jServletFilter</filter-class> </filter> <filter-mapping> <filter-name>log4jServletFilter</filter-name> <url-pattern>/*</url-pattern> <dispatcher>REQUEST</dispatcher> <dispatcher>FORWARD</dispatcher> <dispatcher>INCLUDE</dispatcher> <dispatcher>ERROR</dispatcher> </filter-mapping>
17、src/main/resources中新建log4j2.xml
Deolin目前用的是 这套配置
MyBatis
18、pom.xml中追加
mybatis
mybatis-spring
commons-dbcp2
spring-tx
spring-jdbc
mysql-connector-java
19、src/main/resources中新建mybatis/db.properties
jdbc.driver=com.mysql.jdbc.Driver jdbc.url=jdbc:mysql://localhost:3306/web-integration?characterEncoding=UTF-8&useSSL=false jdbc.username=root jdbc.password=root
20、src/main/resources/mybatis中新建mappers.xml
<?xml version="1.0" encoding="UTF-8"?> <!DOCTYPE configuration PUBLIC "-//mybatis.org//DTD Config 3.0//EN" "http://mybatis.org/dtd/mybatis-3-config.dtd"> <configuration> <mappers> <package name="io.deolin.mapper" /> </mappers> </configuration>
21、在src/main/resources/springframework中新建spring-mybatis.xml
<?xml version="1.0" encoding="UTF-8" ?> <beans xmlns="http://www.springframework.org/schema/beans" xmlns:context="http://www.springframework.org/schema/context" xmlns:tx="http://www.springframework.org/schema/tx" xmlns:util="http://www.springframework.org/schema/util" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 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"> <context:property-placeholder location="classpath:mybatis/db.properties" /> <bean id="dataSource" class="org.apache.commons.dbcp2.BasicDataSource"> <property name="driverClassName" value="${jdbc.driver}" /> <property name="url" value="${jdbc.url}" /> <property name="username" value="${jdbc.username}" /> <property name="password" value="${jdbc.password}" /> </bean> <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean"> <property name="dataSource" ref="dataSource" /> <property name="configLocation" value="classpath:mybatis/mappers.xml" /> </bean> <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer"> <property name="basePackage" value="io.deolin.mapper"></property> <property name="sqlSessionFactoryBeanName" value="sqlSessionFactory"></property> </bean> </beans>
22、application-context.xml中追加
<import resource="classpath:springframework/spring-mybatis.xml" />
※ Mybatis整合完整，同时启动了事务管理，可以写个Service层和Mapper层测试一下。
详细：Github
