Distributed Development System Architecture (2)

Framework integration ideas:

1. Mapper layer: integrating mybatis and spring

Required jar package:

1. The jar package of mybatis

2. Mysql database driver

3. Database connection pool

4. The integration package of Mybatis and spring.

5. Spring's jar package

Configuration file:

1. Mybatis configuration file: SqlMapConfig.xml

2. Spring configuration file: applicationContext-dao.xml

data source

1. Database connection pool

2. Configure SqlSessionFactory (in mybatis and spring integration packages)

3. Configure the scanner for the mapper file.

Second, the Service layer:

The jar package used: spring's jar package.

Configuration file: applicationContext-service.xml

Configure a package scanner to scan all classes annotated with @Service.

Transaction configuration:

Configuration file: applicationContext-trans.xml

1. Configure a transaction manager

2. Configure tx

3. Configure the slice

Third, the performance layer

To use springmvc, you need to use springmvc and spring's jar package.

Configuration file: springmvc.xml

1. Configure the annotation driver

2. Configure a view resolver.

3. Package scanner, @Controller annotation

 Web.xml

1. Configure the front controller of springmvc

2. The listener initialized by the Spring container.

Part of the configuration file:

1/web.xml file configuration:

<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
	xmlns="http://java.sun.com/xml/ns/javaee" xmlns:web="http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd"
	xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd"
	id="yc" version="2.5">
	<display-name>yc-manager</display-name>

	<!-- Initialize the spring container-->
	<context-param>
		<param-name>contextConfigLocation</param-name>
		<param-value>classpath:spring/applicationContext-*.xml</param-value>
	</context-param>
	<listener>
		<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
	</listener>

	<!-- log configuration file -->
	<context-param>
		<param-name>log4jConfigLocation</param-name>
		<param-value>classpath:properties/log4j.properties</param-value>
	</context-param>
	<listener>
		<listener-class>org.springframework.web.util.Log4jConfigListener</listener-class>
	</listener>

	<!-- Solve post garbled characters-->
	<filter>
		<filter-name>CharacterEncodingFilter</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>
	</filter>
	<filter-mapping>
		<filter-name>CharacterEncodingFilter</filter-name>
		<url-pattern>/*</url-pattern>
	</filter-mapping>

	<!-- Springmvc's front controller -->
	<servlet>
		<servlet-name>yc-manager</servlet-name>
		<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
		<!-- contextConfigLocation is not required, if you do not configure contextConfigLocation, springmvc's configuration file defaults to: WEB-INF/servlet name+"-servlet.xml" -->
		<init-param>
			<param-name>contextConfigLocation</param-name>
			<param-value>classpath:spring/springmvc.xml</param-value>
		</init-param>
		<load-on-startup>1</load-on-startup>
	</servlet>
	<servlet-mapping>
		<servlet-name>yc-manager</servlet-name>
		<url-pattern>/</url-pattern>
	</servlet-mapping>

	<!--web.xml in core -->
	<context-param>
		<param-name>webAppRootKey</param-name>
		<param-value>manager.root</param-value>
	</context-param>

	<welcome-file-list>
		<welcome-file>index.html</welcome-file>
		<welcome-file>index.htm</welcome-file>
		<welcome-file>index.jsp</welcome-file>
		<welcome-file>default.html</welcome-file>
		<welcome-file>default.htm</welcome-file>
		<welcome-file>default.jsp</welcome-file>
	</welcome-file-list>

	<!-- error page -->
	<error-page>
		<error-code>403</error-code>
		<location>/WEB-INF/jsp/403.jsp</location>
	</error-page>
	<error-page>
		<error-code>404</error-code>
		<location>/WEB-INF/jsp/404.jsp</location>
	</error-page>
	<error-page>
		<error-code>500</error-code>
		<location>/WEB-INF/jsp/500.jsp</location>
	</error-page>
	<error-page>
		<exception-type>java.lang.Throwable</exception-type>
		<location>/WEB-INF/jsp/error.jsp</location>
	</error-page>

</web-app>

2/SqlMapConfig.xml file configuration

<?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>
	<settings>
		<!-- Whether to enable the mapping of underscore and camel case naming rules -->
		<setting name="mapUnderscoreToCamelCase" value="true" />
		<!-- Set L2 cache-->
		<setting name="cacheEnabled" value="true" />
		<!-- print query statement-->
		<setting name="logImpl" value="SLF4J" />
		<!-- -->
		<setting name="defaultExecutorType" value="REUSE" />
		<!-- Specify whether to call the setter (put) method of the map object when the value in the result set is null -->
		<setting name="callSettersOnNulls" value="true" />
		<!-- lazy loading -->
	</settings>

	<typeAliases>
		<package name="com.yc.pojo" />
	</typeAliases>

	<plugins>
		<plugin interceptor="com.github.pagehelper.PageInterceptor">
			<!--Pagination parameter rationalization-->
			<property name="reasonable" value="true" />
		</plugin>
	</plugins>
</configuration>

3/db.properties configuration file:

#**************************Oracle**********************************
jdbc.driver=oracle.jdbc.driver.OracleDriver
jdbc.url=jdbc:oracle:thin:@10.22.1.245:1521:orcl
jdbc.username=zsyc
jdbc.password=zsyc
filters=stat
#Maximum number of concurrent connections
maxActive=20
#Initialize the number of connections
initialSize=1
#Configure the time for getting the connection to wait for the timeout
maxWait = 60000
#Minimum number of idle connections
minIdle = 10
#Configure the interval for how long to perform detection and detect idle connections that need to be closed, in milliseconds
timeBetweenEvictionRunsMillis = 60000
#Configure the minimum lifetime of a connection in the pool, in milliseconds
minEvictableIdleTimeMillis = 300000
#The sql used to detect whether the connection is valid, the requirement is a query statement.
validationQuery=SELECT 'x'
testWhileIdle=true
testOnBorrow = false
testOnReturn = false
#Whether to cache preparedStatement, which is PSCache. PSCache greatly improves the performance of databases that support cursors, such as oracle. It is recommended to close under mysql.
poolPreparedStatements = false
#Open PSCache and specify the size of PSCache on each connection
maxOpenPreparedStatements=20

4/log4j.properties

#off/fatal/error/warn/info/debug/all
log4j.debug=false
log4j.rootLogger=info,stdout,log,errorlog

# Console
log4j.appender.stdout=org.apache.log4j.ConsoleAppender
log4j.appender.stdout.Target = System.out
log4j.appender.stdout.layout=org.apache.log4j.PatternLayout
log4j.appender.stdout.layout.ConversionPattern=%d [%t] %-5p [%c] - %m%n

### Log ###
log4j.appender.log = org.apache.log4j.DailyRollingFileAppender
log4j.appender.log.File = ../logs/yc-manager-web.log
log4j.appender.log.Append = true
log4j.appender.log.Threshold = DEBUG
log4j.appender.log.DatePattern='.'yyyy-MM-dd
log4j.appender.log.layout = org.apache.log4j.PatternLayout
log4j.appender.log.layout.ConversionPattern = %-d{yyyy-MM-dd HH:mm:ss} [ %p ] [ %C{1}.java :%L(%M)]  %m%n

### Error ###
log4j.appender.errorlog = org.apache.log4j.DailyRollingFileAppender
log4j.appender.errorlog.File = ../logs/yc-manager-web.error.log
log4j.appender.errorlog.Append = true
log4j.appender.errorlog.Threshold = ERROR
log4j.appender.errorlog.DatePattern='.'yyyy-MM-dd
log4j.appender.errorlog.layout = org.apache.log4j.PatternLayout
log4j.appender.errorlog.layout.ConversionPattern =%-d{yyyy-MM-dd HH:mm:ss} [ %p ] [ %C{1}.java :%L(%M)] %m%n

#Spring logging configuration
log4j.category.org.springframework = warn

5/applicationContext-dao.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:p="http://www.springframework.org/schema/p"
	xmlns:aop="http://www.springframework.org/schema/aop" xmlns:tx="http://www.springframework.org/schema/tx"
	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-4.0.xsd
	http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.0.xsd
	http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-4.0.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-4.0.xsd
	http://www.springframework.org/schema/util http://www.springframework.org/schema/util/spring-util-4.0.xsd">
	
	
	<!-- Load configuration file -->
	<context:property-placeholder location="classpath:properties/*.properties"/>
	<!-- Database connection pool -->
	<bean id="dataSource" class="com.alibaba.druid.pool.DruidDataSource"
		destroy-method="close">
		<property name="driverClassName" value="${jdbc.driver}" />
		<property name="url" value="${jdbc.url}" />
		<property name="username" value="${jdbc.username}" />
		<property name="password" value="${jdbc.password}" />
		<property name="filters" value="${filters}" />		
		<property name="maxActive" value="${maxActive}" />		
		<property name="initialSize" value="${initialSize}" />		
		<property name="maxWait" value="${maxWait}" />
		<property name="minIdle" value="${minIdle}" />		
		<property name="timeBetweenEvictionRunsMillis" value="${timeBetweenEvictionRunsMillis}" />
		<property name="minEvictableIdleTimeMillis" value="${minEvictableIdleTimeMillis}" />
		<property name="validationQuery" value="${validationQuery}" />
		<property name="testWhileIdle" value="${testWhileIdle}" />
		<property name="testOnBorrow" value="${testOnBorrow}" />
		<property name="testOnReturn" value="${testOnReturn}" />
		<property name="poolPreparedStatements" value="${poolPreparedStatements}" />
		<property name="maxOpenPreparedStatements" value="${maxOpenPreparedStatements}" />
	</bean>
	
	<!-- Let spring manage sqlsessionfactory using mybatis and spring integration package -->
	<!-- Configure SqlsessionFactory -->
	<bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
		<!-- Load the configuration file of mybatis-->
		<property name="configLocation" value="classpath:mybatis/SqlMapConfig.xml"/>
		<!-- configure data source -->
		<property name="dataSource" ref="dataSource"/>
	</bean>
	<!-- Configure the package scanner, scan the mapper interface to generate proxy objects and put them in the spring container -->
	<bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
		<!-- Specify the package to scan -->
		<property name="basePackage" value="com.yc.mapper"/>
	</bean>
	
</beans>	

6/applicationContext-service.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:p="http://www.springframework.org/schema/p"
	xmlns:aop="http://www.springframework.org/schema/aop" xmlns:tx="http://www.springframework.org/schema/tx"
	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-4.0.xsd
	http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.0.xsd
	http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-4.0.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-4.0.xsd
	http://www.springframework.org/schema/util http://www.springframework.org/schema/util/spring-util-4.0.xsd">

	<!-- Configure the package scanner to scan the class of the @Service primary key -->
	<context:component-scan base-package="com.yc.service"/>
</beans>

7/applicationContext-trans.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:p="http://www.springframework.org/schema/p"
	xmlns:aop="http://www.springframework.org/schema/aop" xmlns:tx="http://www.springframework.org/schema/tx"
	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-4.0.xsd
	http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.0.xsd
	http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-4.0.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-4.0.xsd
	http://www.springframework.org/schema/util http://www.springframework.org/schema/util/spring-util-4.0.xsd">

	<!-- Transaction Configuration -->
	<!-- Transaction Manager -->
	<bean id="transactionManager"
		class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
		<!-- datasource-->
		<property name="dataSource" ref="dataSource" />
	</bean>
	<!-- NOTIFICATION-->
	<tx:advice id="txAdvice" transaction-manager="transactionManager">
		<tx:attributes>
			<!-- Propagation behavior -->
			<tx:method name="save*" propagation="REQUIRED" />
			<tx:method name="insert*" propagation="REQUIRED" />
			<tx:method name="add*" propagation="REQUIRED" />
			<tx:method name="create*" propagation="REQUIRED" />
			<tx:method name="delete*" propagation="REQUIRED" />
			<tx:method name="update*" propagation="REQUIRED" />
			<tx:method name="find*" propagation="SUPPORTS" read-only="true" />
			<tx:method name="select*" propagation="SUPPORTS" read-only="true" />
			<tx:method name="get*" propagation="SUPPORTS" read-only="true" />
		</tx:attributes>
	</tx:advice>
	<!-- facet-->
	<aop:config>
		<aop:advisor advice-ref="txAdvice"
			pointcut="execution(* com.yc.service.*.*(..))" />
	</aop:config>
</beans>

8/springmvc.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:p="http://www.springframework.org/schema/p"
	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/mvc http://www.springframework.org/schema/mvc/spring-mvc-4.0.xsd
        http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd">
	<!-- Annotation driver-->
	<mvc:annotation-driven />
	<!-- View resolver -->
	<bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
		<property name="prefix" value="/WEB-INF/jsp/" />
		<property name="suffix" value=".jsp" />
	</bean>
	<!-- Package scanner, scan @Controller annotations -->
	<context:component-scan base-package="com.yc.controller" />
	<!-- Configure resource mapping -->
	<mvc:resources location="/WEB-INF/js/" mapping="/js/**"/>
	<mvc:resources location="/WEB-INF/css/" mapping="/css/**"/>
	<!-- Define file upload parser-->
	<bean id="multipartResolver"
		class="org.springframework.web.multipart.commons.CommonsMultipartResolver">
		<!-- set default encoding-->
		<property name="defaultEncoding" value="UTF-8"></property>
		<!-- Set the maximum file upload size to 5MB, 5*1024*1024 -->
		<property name="maxUploadSize" value="5242880"></property>
	</bean>
</beans>