【分布式系列之dubbo】SSM+Dubbo实战

对于传统的单一构架，也就是打成的war或者ear包部署在同一个Web容器里的构架，它虽然开发、测试、部署简单，但随着业务的不断发展，维护成本增加，可扩展性差，而且一台Tomcat的并发数在500左右，系统性能存在瓶颈。虽然互联网应用的系统性能瓶颈存在于每一个地方（数据库，网络等），先不考虑其他系统瓶颈，本文采用多Tomcat来解决一个Tomcat带来的瓶颈问题，那么多个Tomcat之间如何通信？答案是Dubbo。

为什么要使用Dubbo?两台服务器A、B，分别部署不同的应用a,b。当A服务器想要调用B服务器上应用b提供的函数或方法的时候，由于不在一个内存空间，不能直接调用，需要通过网络来表达调用的语义传达调用的数据。--RPC。 Dubbo是基于RPC的高性能和透明化的RPC远程服务调用方案。

Dubbo也是一个被国内互联网公司广泛使用的SOA（核心理念：对外提供服务）基础框架，说的直白点就是：一次开发出来的服务接口，相关服务都能调用。很像Java经典的特性：一次编译，到处运行。

一、配置环境，创建项目工程

1、安装mysql并创建测试数据

SET FOREIGN_KEY_CHECKS=0;


DROP TABLE IF EXISTS `book`;
CREATE TABLE `book` (
  `book_id` varchar(100) NOT NULL COMMENT '图书ID',
  `book_name` varchar(100) DEFAULT NULL COMMENT '图书名称',
  `number` int(11) DEFAULT NULL COMMENT '馆藏数量',
  PRIMARY KEY (`book_id`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8 COMMENT='图书表';


INSERT INTO `book` VALUES ('1000', 'Java程序设计', '10');
INSERT INTO `book` VALUES ('1001', '数据结构', '10');
INSERT INTO `book` VALUES ('1002', '设计模式', '10');
INSERT INTO `book` VALUES ('1003', '编译原理', '10');

2、创建父工程子工程

注：parent是pom文件的父工程，common是jar包，里面存放interface,bean,dao等公共内容。controller控制层和service业务层是war包，也就是各分一个tomcat.

2.1创建父工程

使用myeclipse创建maven工程记住选择打包方式为pom

2.2创建子工程

在父工程上选择创建module，名称为common打包方式选择jar

controller和service与common创建方式一致，都是选择module,但是打包方式要选择war.

注：此时可能会报错，是因为webapp下没有WEB-INF文件夹和web.xml文件，自己创建目录和web.xml文件即可。

之后在父工程和子工程的pom.xml文件中都加入

 <build>
		<plugins>
			<plugin>
				<groupId>org.apache.maven.plugins</groupId>
				<artifactId>maven-compiler-plugin</artifactId>
				<version>3.2</version>
				<configuration>
					<source>1.7</source>
					<target>1.7</target>
					<encoding>UTF-8</encoding>
				</configuration>
			</plugin>
		</plugins>
	</build>

将jdk永久的切换为1.7

2.3导入jar包

parent项目pom.xml导入所有jar包的坐标，service 和controller会依赖common,所以在common的pom文件中加入要引入的jar包，

parent的pom.xml

<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
  <modelVersion>4.0.0</modelVersion>
  <groupId>com.slp</groupId>
  <artifactId>parent</artifactId>
  <version>0.0.1-SNAPSHOT</version>
  <packaging>pom</packaging>
  <build>
		<plugins>
			<plugin>
				<groupId>org.apache.maven.plugins</groupId>
				<artifactId>maven-compiler-plugin</artifactId>
				<version>3.2</version>
				<configuration>
					<source>1.7</source>
					<target>1.7</target>
					<encoding>UTF-8</encoding>
				</configuration>
			</plugin>
		</plugins>
	</build>
	<modules>
  	<module>common</module>
  	<module>service</module>
  	<module>controller</module>
  </modules>
  
  <!-- 设置统一控制版本 -->
	<properties>
		<java-version>1.7</java-version>
		<junit-version>4.12</junit-version>
		<spring.version>4.1.3.RELEASE</spring.version>
		<jackson.version>2.4.2</jackson.version>
		<mysql-connector-java-version>5.1.8</mysql-connector-java-version>
		<org.mybatis-version>3.2.7</org.mybatis-version>
		<org.mybatis-spring-version>1.2.2</org.mybatis-spring-version>
		<opensymphony-version>2.4.2</opensymphony-version>
		<freemarker-version>2.3.18</freemarker-version>
		<druid.version>1.0.9</druid.version>
		<commons-collections-version>1.0</commons-collections-version>
		<commons-fileupload-version>1.2.2</commons-fileupload-version>
		<org.apache.commons-version>3.1</org.apache.commons-version>
		<commons-codec-version>1.6</commons-codec-version>
		<dom4j-version>1.6.1</dom4j-version>
		<javax.servlet-version>1.2</javax.servlet-version>
		<aspectjweaver-version>1.6.6</aspectjweaver-version>
		<slf4j-log4j12-version>1.6.6</slf4j-log4j12-version>
		<log4j-version>1.2.16</log4j-version>
		<javax.servlet-jsp-version>2.0</javax.servlet-jsp-version>
		<cglib-version>2.2.2</cglib-version>
		<slf4j-api-version>1.6.6</slf4j-api-version>
		<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
	</properties>
	
	<!-- 依赖管理 版本号 -->
	<!-- 设置统一依赖管理、不强行依赖 -->
	<dependencyManagement>
		<dependencies>
			<!-- with junit4.8.2 -->
			<dependency>
				<groupId>junit</groupId>
				<artifactId>junit</artifactId>
				<version>${junit-version}</version>
				<type>jar</type>
			</dependency>
			<!-- Spring -->
			<dependency>
				<groupId>org.springframework</groupId>
				<artifactId>spring-context</artifactId>
				<version>${spring.version}</version>
			</dependency>
			<dependency>
				<groupId>org.springframework</groupId>
				<artifactId>spring-beans</artifactId>
				<version>${spring.version}</version>
			</dependency>
			<dependency>
				<groupId>org.springframework</groupId>
				<artifactId>spring-webmvc</artifactId>
				<version>${spring.version}</version>
			</dependency>
			<dependency>
				<groupId>org.springframework</groupId>
				<artifactId>spring-jdbc</artifactId>
				<version>${spring.version}</version>
			</dependency>
			<dependency>
				<groupId>org.springframework</groupId>
				<artifactId>spring-aspects</artifactId>
				<version>${spring.version}</version>
			</dependency>

			<dependency>
				<groupId>org.springframework</groupId>
				<artifactId>spring-test</artifactId>
				<version>${spring.version}</version>
			</dependency>

			<dependency>
				<groupId>org.springframework</groupId>
				<artifactId>spring-context-support</artifactId>
				<version>${spring.version}</version>
			</dependency>

			<dependency>
				<groupId>org.springframework</groupId>
				<artifactId>spring-jms</artifactId>
				<version>${spring.version}</version>
			</dependency>


			<!-- Jackson Json处理工具包 -->
			<dependency>
				<groupId>com.fasterxml.jackson.core</groupId>
				<artifactId>jackson-databind</artifactId>
				<version>${jackson.version}</version>
			</dependency>

			<dependency>
				<groupId>com.alibaba</groupId>
				<artifactId>fastjson</artifactId>
				<version>1.1.41</version>
			</dependency>

			<!-- with mybatis-spring -->
			<dependency>
				<groupId>org.mybatis</groupId>
				<artifactId>mybatis</artifactId>
				<version>${org.mybatis-version}</version>
			</dependency>
			<dependency>
				<groupId>org.mybatis</groupId>
				<artifactId>mybatis-spring</artifactId>
				<version>${org.mybatis-spring-version}</version>
			</dependency>
			<!-- jdbc driver -->
			<dependency>
				<groupId>mysql</groupId>
				<artifactId>mysql-connector-java</artifactId>
				<version>${mysql-connector-java-version}</version>
			</dependency>
			<!-- 连接池 -->
			<dependency>
				<groupId>com.alibaba</groupId>
				<artifactId>druid</artifactId>
				<version>${druid.version}</version>
			</dependency>
			<!-- apache commons jar -->
			<dependency>
				<groupId>commons-collections</groupId>
				<artifactId>commons-collections</artifactId>
				<version>${commons-collections-version}</version>
			</dependency>

			<dependency>
				<groupId>commons-fileupload</groupId>
				<artifactId>commons-fileupload</artifactId>
				<version>${commons-fileupload-version}</version>
			</dependency>

			<dependency>
				<groupId>org.apache.commons</groupId>
				<artifactId>commons-lang3</artifactId>
				<version>${org.apache.commons-version}</version>
			</dependency>

			<dependency>
				<groupId>commons-codec</groupId>
				<artifactId>commons-codec</artifactId>
				<version>${commons-codec-version}</version>
			</dependency>
			<!-- analyze xml use dom4j -->
			<dependency>
				<groupId>dom4j</groupId>
				<artifactId>dom4j</artifactId>
				<version>${dom4j-version}</version>
			</dependency>

			<!-- jstl标签 -->
			<dependency>
				<groupId>jstl</groupId>
				<artifactId>jstl</artifactId>
				<version>1.2</version>
			</dependency>
			<dependency>
				<groupId>taglibs</groupId>
				<artifactId>standard</artifactId>
				<version>1.1.2</version>
			</dependency>

			<dependency>
				<groupId>org.slf4j</groupId>
				<artifactId>slf4j-log4j12</artifactId>
				<version>1.6.6</version>
			</dependency>
			<dependency>
				<groupId>log4j</groupId>
				<artifactId>log4j</artifactId>
				<version>1.2.17</version>
			</dependency>

			<dependency>
				<groupId>org.slf4j</groupId>
				<artifactId>slf4j-api</artifactId>
				<version>1.6.6</version>
			</dependency>
			<dependency>
				<groupId>javax.activation</groupId>
				<artifactId>activation</artifactId>
				<version>1.1.1</version>
			</dependency>

			<dependency>
				<groupId>cglib</groupId>
				<artifactId>cglib</artifactId>
				<version>${cglib-version}</version>
			</dependency>
			<dependency>
				<groupId>org.json</groupId>
				<artifactId>json</artifactId>
				<version>20131018</version>
			</dependency>
			<dependency>
				<groupId>com.alibaba</groupId>
				<artifactId>dubbo</artifactId>
				<version>2.5.3</version>
			</dependency>
			<!-- Zookeeper 用于分布式服务管理 -->
			<dependency>
				<groupId>com.github.sgroschupf</groupId>
				<artifactId>zkclient</artifactId>
				<version>0.1</version>
			</dependency>
			<dependency>
				<groupId>org.apache.zookeeper</groupId>
				<artifactId>zookeeper</artifactId>
				<version>3.4.6</version>
			</dependency>
		</dependencies>
	</dependencyManagement>
</project>

common的pom.xml

<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
  <modelVersion>4.0.0</modelVersion>
  <parent>
    <groupId>com.slp</groupId>
    <artifactId>parent</artifactId>
    <version>0.0.1-SNAPSHOT</version>
  </parent>
  <artifactId>common</artifactId>
   <build>
		<plugins>
			<plugin>
				<groupId>org.apache.maven.plugins</groupId>
				<artifactId>maven-compiler-plugin</artifactId>
				<version>3.2</version>
				<configuration>
					<source>1.7</source>
					<target>1.7</target>
					<encoding>UTF-8</encoding>
				</configuration>
			</plugin>
		</plugins>
	</build>
	<dependencies>
	<!-- with junit4.12 -->
		<dependency>
			<groupId>junit</groupId>
			<artifactId>junit</artifactId>
		</dependency>
		<!-- Spring -->
		<dependency>
			<groupId>org.springframework</groupId>
			<artifactId>spring-context</artifactId>
		</dependency>
		<dependency>
			<groupId>org.springframework</groupId>
			<artifactId>spring-beans</artifactId>
		</dependency>
		<dependency>
			<groupId>org.springframework</groupId>
			<artifactId>spring-webmvc</artifactId>
		</dependency>
		<dependency>
			<groupId>org.springframework</groupId>
			<artifactId>spring-jdbc</artifactId>
		</dependency>
		<dependency>
			<groupId>org.springframework</groupId>
			<artifactId>spring-aspects</artifactId>
		</dependency>
		<dependency>
			<groupId>org.springframework</groupId>
			<artifactId>spring-test</artifactId>
		</dependency>

		<dependency>
			<groupId>org.springframework</groupId>
			<artifactId>spring-context-support</artifactId>
		</dependency>
		<dependency>
			<groupId>org.springframework</groupId>
			<artifactId>spring-jms</artifactId>
		</dependency>
		<!-- Jackson Json处理工具包 -->
		<dependency>
			<groupId>com.fasterxml.jackson.core</groupId>
			<artifactId>jackson-databind</artifactId>
		</dependency>
		<!-- with mybatis-spring -->
		<dependency>
			<groupId>org.mybatis</groupId>
			<artifactId>mybatis</artifactId>
		</dependency>
		<dependency>
			<groupId>org.mybatis</groupId>
			<artifactId>mybatis-spring</artifactId>
		</dependency>
		<!-- jdbc driver -->
		<dependency>
			<groupId>mysql</groupId>
			<artifactId>mysql-connector-java</artifactId>
		</dependency>
		<!-- 连接池 -->
		<dependency>
			<groupId>com.alibaba</groupId>
			<artifactId>druid</artifactId>
		</dependency>
		<!-- apache commons jar -->
		<dependency>
			<groupId>commons-collections</groupId>
			<artifactId>commons-collections</artifactId>
		</dependency>
		<dependency>
			<groupId>commons-fileupload</groupId>
			<artifactId>commons-fileupload</artifactId>
		</dependency>
		<dependency>
			<groupId>org.apache.commons</groupId>
			<artifactId>commons-lang3</artifactId>
		</dependency>

		<dependency>
			<groupId>commons-codec</groupId>
			<artifactId>commons-codec</artifactId>
		</dependency>
		<!-- analyze xml use dom4j -->
		<dependency>
			<groupId>dom4j</groupId>
			<artifactId>dom4j</artifactId>
		</dependency>

		<!-- jstl标签 -->
		<dependency>
			<groupId>jstl</groupId>
			<artifactId>jstl</artifactId>
		</dependency>
		<dependency>
			<groupId>taglibs</groupId>
			<artifactId>standard</artifactId>
		</dependency>
		<dependency>
			<groupId>org.slf4j</groupId>
			<artifactId>slf4j-log4j12</artifactId>
		</dependency>
		<dependency>
			<groupId>log4j</groupId>
			<artifactId>log4j</artifactId>
		</dependency>
		<dependency>
			<groupId>org.slf4j</groupId>
			<artifactId>slf4j-api</artifactId>
		</dependency>
		<dependency>
			<groupId>javax.activation</groupId>
			<artifactId>activation</artifactId>
		</dependency>
		<dependency>
			<groupId>cglib</groupId>
			<artifactId>cglib</artifactId>
		</dependency>
		<dependency>
			<groupId>org.json</groupId>
			<artifactId>json</artifactId>
		</dependency>
		<dependency>
			<groupId>com.alibaba</groupId>
			<artifactId>dubbo</artifactId>
			<exclusions>
				<exclusion>
					<artifactId>spring</artifactId>
					<groupId>org.springframework</groupId>
				</exclusion>
			</exclusions>
		</dependency>
		<dependency>
			<groupId>com.alibaba</groupId>
			<artifactId>fastjson</artifactId>
		</dependency>
		<!-- Zookeeper 用于分布式服务管理 -->
		<dependency>
			<groupId>org.apache.zookeeper</groupId>
			<artifactId>zookeeper</artifactId>
		</dependency>

		<dependency>
			<groupId>com.github.sgroschupf</groupId>
			<artifactId>zkclient</artifactId>
		</dependency>
	
	</dependencies>
</project>

controller的pom.xml

<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
  <modelVersion>4.0.0</modelVersion>
  <parent>
    <groupId>com.slp</groupId>
    <artifactId>parent</artifactId>
    <version>0.0.1-SNAPSHOT</version>
  </parent>
  <artifactId>controller</artifactId>
  <packaging>war</packaging>
  <dependencies>
  	<dependency>
  		<groupId>com.slp</groupId>
  		<artifactId>common</artifactId>
  		<version>0.0.1-SNAPSHOT</version>
  	</dependency>
  </dependencies>
   <build>
		<plugins>
			<plugin>
				<groupId>org.apache.maven.plugins</groupId>
				<artifactId>maven-compiler-plugin</artifactId>
				<version>3.2</version>
				<configuration>
					<source>1.7</source>
					<target>1.7</target>
					<encoding>UTF-8</encoding>
				</configuration>
			</plugin>
		</plugins>
	</build>
</project>

service的pom.xml

<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
  <modelVersion>4.0.0</modelVersion>
  <parent>
    <groupId>com.slp</groupId>
    <artifactId>parent</artifactId>
    <version>0.0.1-SNAPSHOT</version>
  </parent>
  <artifactId>service</artifactId>
  <packaging>war</packaging>
  <dependencies>
  	<dependency>
  		<groupId>com.slp</groupId>
  		<artifactId>common</artifactId>
  		<version>0.0.1-SNAPSHOT</version>
  	</dependency>
  </dependencies>
   <build>
		<plugins>
			<plugin>
				<groupId>org.apache.maven.plugins</groupId>
				<artifactId>maven-compiler-plugin</artifactId>
				<version>3.2</version>
				<configuration>
					<source>1.7</source>
					<target>1.7</target>
					<encoding>UTF-8</encoding>
				</configuration>
			</plugin>
		</plugins>
	</build>
</project>

二、整合Spring+Mybatis

1、配置Spring监听器

一般会整合Spring+Mybatis放在业务层servce,在service层的web.xml中加入：

<?xml version="1.0" encoding="UTF-8"?>
<web-app version="2.5" xmlns="http://java.sun.com/xml/ns/javaee"
	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
	xsi:schemaLocation="http://java.sun.com/xml/ns/javaee 
	http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd">
	<!-- 上下文配置文件 -->
	<context-param>
		<param-name>contextConfigLocation</param-name>
		<param-value>classpath:spring-context.xml</param-value>
	</context-param>
	
	<!-- 监听器 加载配置上下文配置文件-->
	<listener>
		<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
	</listener>
</web-app>

2、创建上下文配置文件（resource下）spring-context.xml

<beans xmlns="http://www.springframework.org/schema/beans"
	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:mvc="http://www.springframework.org/schema/mvc"
	xmlns:context="http://www.springframework.org/schema/context"
	xmlns:aop="http://www.springframework.org/schema/aop" 
	xmlns:tx="http://www.springframework.org/schema/tx"
	xmlns:task="http://www.springframework.org/schema/task"
	xmlns:dubbo="http://code.alibabatech.com/schema/dubbo"
	xsi:schemaLocation="http://www.springframework.org/schema/beans 
		http://www.springframework.org/schema/beans/spring-beans-4.0.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-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/task
   		http://www.springframework.org/schema/task/spring-task-4.0.xsd
		http://code.alibabatech.com/schema/dubbo        
		http://code.alibabatech.com/schema/dubbo/dubbo.xsd">
		
       <!-- 数据源  、事务 、扫描、MYbatis、ActiveMQ、Freemarker、Redis、Solr。。。。。 -->		
		<import resource="classpath:config/*.xml"/>

</beans>

3、创建数据源和配置文件jdbc.xml(resource/config)

　该文件中加入读取配置文件->数据源->事务管理->Spring声明式事务管理配置。

<beans xmlns="http://www.springframework.org/schema/beans"
	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:mvc="http://www.springframework.org/schema/mvc"
	xmlns:context="http://www.springframework.org/schema/context"
	xmlns:aop="http://www.springframework.org/schema/aop" 
	xmlns:tx="http://www.springframework.org/schema/tx"
	xmlns:task="http://www.springframework.org/schema/task"
	xmlns:dubbo="http://code.alibabatech.com/schema/dubbo"
	xsi:schemaLocation="http://www.springframework.org/schema/beans 
		http://www.springframework.org/schema/beans/spring-beans-4.0.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-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/task
   		http://www.springframework.org/schema/task/spring-task-4.0.xsd
		http://code.alibabatech.com/schema/dubbo        
		http://code.alibabatech.com/schema/dubbo/dubbo.xsd">
	
	<!-- 读取配置文件,可以读取多个 -->
	<bean class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer">
		<property name="locations">
			<list>
				<value>classpath:jdbc.properties</value>
			</list>
		</property>
	</bean>
		
	  <!-- 数据源  阿里巴巴出品  druid   -->
	<bean id="dataSource" class="com.alibaba.druid.pool.DruidDataSource" destroy-method="close">
		<property name="driverClassName" value="com.mysql.jdbc.Driver" />
		<property name="url" value="${jdbc.url}" />
		<property name="username" value="${jdbc.username}" />
		<property name="password" value="${jdbc.password}" />
		<property name="initialSize" value="${jdbc.initialSize}"></property>
		<property name="maxActive" value="${jdbc.maxActive}"></property>
		<property name="minIdle" value="1"></property>
		<property name="maxWait" value="30000"></property>
		<property name="timeBetweenEvictionRunsMillis" value="60000"></property>
		<property name="minEvictableIdleTimeMillis" value="300000"></property>
		<property name="validationQuery" value="SELECT 1 "></property>
		<property name="testWhileIdle" value="true"></property>
		<property name="poolPreparedStatements" value="true"></property>
		<property name="maxPoolPreparedStatementPerConnectionSize" value="20"></property>
		<property name="filters" value="stat,slf4j" />
		<property name="proxyFilters">
			<list>
				<ref bean="stat-filter" />
				<ref bean="log-filter" />
			</list>
		</property>
	</bean>
	
	<bean id="log-filter" class="com.alibaba.druid.filter.logging.Slf4jLogFilter">
		<property name="resultSetLogEnabled" value="true" />
		<property name="statementExecutableSqlLogEnable" value="true" />
	</bean>

	<bean id="stat-filter" class="com.alibaba.druid.filter.stat.StatFilter">
		<property name="slowSqlMillis" value="30000" />
		<property name="logSlowSql" value="true" />
		<property name="mergeSql" value="true" />
	</bean>
	<!-- 事务管理-->
	<bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
		<property name="dataSource" ref="dataSource"/>
	</bean>
	 <!-- 拦截器方式配置事物,方法命名记得要规范 -->
	<tx:advice id="txAdvice" transaction-manager="transactionManager">
		<tx:attributes>
			<tx:method name="select*" read-only="true" propagation="REQUIRED"/>
			<tx:method name="find*" read-only="true" propagation="REQUIRED"/>
			<tx:method name="query*" read-only="true" propagation="REQUIRED"/>
			<tx:method name="get*" read-only="true" propagation="REQUIRED"/>
			<tx:method name="search*" read-only="true" propagation="REQUIRED"/>
			<tx:method name="is*" read-only="true" propagation="REQUIRED"/>
			<tx:method name="save*" propagation="REQUIRED" rollback-for="Exception,RuntimeException"/>
			<tx:method name="create*" propagation="REQUIRED" rollback-for="Exception,RuntimeException"/>
			<tx:method name="update*" propagation="REQUIRED" rollback-for="Exception,RuntimeException"/>
			<tx:method name="add*" propagation="REQUIRED" rollback-for="Exception,RuntimeException"/>
			<tx:method name="delete*" propagation="REQUIRED" rollback-for="Exception,RuntimeException"/>
			<tx:method name="execute*" propagation="REQUIRED" rollback-for="Exception,RuntimeException"/>
			<tx:method name="remove*" propagation="REQUIRED" rollback-for="Exception,RuntimeException"/>
			<tx:method name="put*" propagation="REQUIRED" rollback-for="Exception,RuntimeException"/>
			<tx:method name="import*" propagation="REQUIRED" rollback-for="Exception,RuntimeException"/>
			<tx:method name="submit*" propagation="REQUIRED" rollback-for="Exception,RuntimeException"/>
			<tx:method name="cancel*" propagation="REQUIRED" rollback-for="Exception,RuntimeException"/>
			<tx:method name="send*" propagation="REQUIRED" rollback-for="Exception,RuntimeException"/>
			<tx:method name="edit*" propagation="REQUIRED" rollback-for="Exception,RuntimeException"/>
			<tx:method name="handle*" propagation="REQUIRED" rollback-for="Exception,RuntimeException"/>
			<tx:method name="close*" propagation="REQUIRED" rollback-for="Exception,RuntimeException"/>
			<tx:method name="export*" propagation="REQUIRED" rollback-for="Exception,RuntimeException"/>
		</tx:attributes>
	</tx:advice>
	
	<aop:config>
		<aop:pointcut id="transactionPointcut"
			expression="execution(* com.test..*ServiceImpl.*(..))" />
		<aop:advisor pointcut-ref="transactionPointcut" advice-ref="txAdvice" />
	</aop:config>
</beans>

jdbc.properties(resource文件夹下)

jdbc.url=jdbc:mysql://localhost:3306/dubbo?characterEncoding=UTF-8
jdbc.username=sanglp
jdbc.password=123456
jdbc.initialSize=1
jdbc.maxActive=20

4、创建spring-common-context.xml自动扫描（resource/config下）

<beans xmlns="http://www.springframework.org/schema/beans"
	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:mvc="http://www.springframework.org/schema/mvc"
	xmlns:context="http://www.springframework.org/schema/context"
	xmlns:aop="http://www.springframework.org/schema/aop" 
	xmlns:tx="http://www.springframework.org/schema/tx"
	xmlns:task="http://www.springframework.org/schema/task"
	xmlns:dubbo="http://code.alibabatech.com/schema/dubbo"
	xsi:schemaLocation="http://www.springframework.org/schema/beans 
		http://www.springframework.org/schema/beans/spring-beans-4.0.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-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/task
   		http://www.springframework.org/schema/task/spring-task-4.0.xsd
		http://code.alibabatech.com/schema/dubbo        
		http://code.alibabatech.com/schema/dubbo/dubbo.xsd">

       <!-- 扫描 -->
	<context:component-scan base-package="com.test.core.service"/>
</beans>

5、配置myvatis(resource/config下)

加入sqlSessionFactory工厂->接口的Mapper自动扫描方式

<beans xmlns="http://www.springframework.org/schema/beans"
	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:mvc="http://www.springframework.org/schema/mvc"
	xmlns:context="http://www.springframework.org/schema/context"
	xmlns:aop="http://www.springframework.org/schema/aop" 
	xmlns:tx="http://www.springframework.org/schema/tx"
	xmlns:task="http://www.springframework.org/schema/task"
	xmlns:dubbo="http://code.alibabatech.com/schema/dubbo"
	xsi:schemaLocation="http://www.springframework.org/schema/beans 
		http://www.springframework.org/schema/beans/spring-beans-4.0.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-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/task
   		http://www.springframework.org/schema/task/spring-task-4.0.xsd
		http://code.alibabatech.com/schema/dubbo        
		http://code.alibabatech.com/schema/dubbo/dubbo.xsd">
	
	<!-- sqlSessionFactory 工厂 -->
	<bean class="org.mybatis.spring.SqlSessionFactoryBean">
		<!-- 数据源 -->
		<property name="dataSource" ref="dataSource"/>
		<!-- 配置Mybatis核心配置文件所在位置 -->
		<property name="configLocation" value="classpath:mybatis-config.xml"/>
	</bean>
	
	<!-- 接口   Mapper 扫描方式 自动 -->
	<!-- MapperScannerConfigurer会自动找sqlSessionFactory,所以不用注入了.自己干预也可以 -->
	<bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
		<!-- 扫描的包 -->
		<property name="basePackage" value="com.test.core.dao"/>
	</bean>
	
</beans>

mybatis-config.xml(resource文件夹下)

<?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>
	<!-- 别名 -->
	<typeAliases>
		<package name="com.test.core.bean"/>
	</typeAliases>
</configuration>

6、创建mapper等

package com.test.core.bean;

import java.io.Serializable;

public class TestBook implements Serializable {
	private static final long serialVersionUID = 1L;
	String bookId;
    String bookName;
    Integer number;
	public String getBookId() {
		return bookId;
	}
	public void setBookId(String bookId) {
		this.bookId = bookId;
	}
	public String getBookName() {
		return bookName;
	}
	public void setBookName(String bookName) {
		this.bookName = bookName;
	}
	public Integer getNumber() {
		return number;
	}
	public void setNumber(Integer number) {
		this.number = number;
	}
	public static long getSerialversionuid() {
		return serialVersionUID;
	}
	@Override
	public String toString() {
		return "TestBean [bookId=" + bookId + ", bookName=" + bookName + ", number=" + number + "]";
	}
    
    
}

package com.test.core.dao;

import com.test.core.bean.TestBook;

public interface TestBookDao {

	public TestBook findById(String id);
}

package com.test.core.service;

import com.test.core.bean.TestBook;

public interface TestBookService {
	public TestBook findById(String id);
}

package com.test.core.service;


import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

import com.test.core.bean.TestBook;
import com.test.core.dao.TestBookDao;

@Service("testBookService")
public class TestBookServiceImpl implements TestBookService{

	@Autowired
	TestBookDao testBookDao;
	
	public TestBook findById(String id) {
		return testBookDao.findById(id);
	}

}

<?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.test.core.dao.TestBookDao">

	<!-- 查询 -->
	<select id="findById" resultType="TestBook" parameterType="java.lang.String">
		select book_id bookId,book_name bookName,number from book where book_id= #{bookId}
	</select>
	
</mapper>

　7、测试（service层）

package com.test.core.testDemo;

import org.junit.Test;
import org.junit.runner.RunWith;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.test.context.ContextConfiguration;
import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;

import com.test.core.bean.TestBook;
import com.test.core.dao.TestBookDao;

@RunWith(SpringJUnit4ClassRunner.class)
@ContextConfiguration(locations={"classpath:spring-context.xml"})
public class TestSpringMyBatis {
	@Autowired
	TestBookDao testBookDao;
	
	@Test
	public void testFind(){
		TestBook findById = testBookDao.findById("1000");
		System.out.println(findById.toString());
	}
}

三、整合SpringMVC

整合SpringMVC一般放在controller层

1 配置前端控制器DispatcherServlet

在controller子项目中找到web.xml文件，加入

<?xml version="1.0" encoding="UTF-8"?>
<web-app version="2.5" xmlns="http://java.sun.com/xml/ns/javaee"
	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
	xsi:schemaLocation="http://java.sun.com/xml/ns/javaee 
	http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd">
		<!-- 前端控制器 -->
	<servlet>
		<servlet-name>controller</servlet-name>
		<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
		<init-param>
			<!-- 默认找 WEB-INF/[servlet的名称]-servlet.xml -->
			<param-name>contextConfigLocation</param-name>
			<param-value>classpath:springmvc-controller.xml</param-value>
		</init-param>
		<load-on-startup>1</load-on-startup>
	</servlet>
	
	<servlet-mapping>
		<!-- /  :拦截所有请求 （但不包括.jsp)   .js .png .css   （配置对静态资源放行）
			 /* :拦截所有请求   真全拦截   （基本上不用）   
			 *.do  ： .do 
		 -->
		 <servlet-name>controller</servlet-name>
		 <url-pattern>/</url-pattern>
	</servlet-mapping>
</web-app>

　2、在resource下创建springmvc-controller.xml文件

<beans xmlns="http://www.springframework.org/schema/beans"
	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:mvc="http://www.springframework.org/schema/mvc"
	xmlns:context="http://www.springframework.org/schema/context"
	xmlns:aop="http://www.springframework.org/schema/aop" 
	xmlns:tx="http://www.springframework.org/schema/tx"
	xmlns:task="http://www.springframework.org/schema/task"
	xmlns:dubbo="http://code.alibabatech.com/schema/dubbo"
	xsi:schemaLocation="http://www.springframework.org/schema/beans 
		http://www.springframework.org/schema/beans/spring-beans-4.0.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-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/task
   		http://www.springframework.org/schema/task/spring-task-4.0.xsd
		http://code.alibabatech.com/schema/dubbo        
		http://code.alibabatech.com/schema/dubbo/dubbo.xsd">
		
	<!-- 扫描 @Contr -->	
	<context:component-scan base-package="com.test.core.controller" />
	<!-- 处理器 映射器  适配器 -->
	<mvc:annotation-driven/>
	
	<!-- 静态资源访问（不拦截此目录下的东西的访问） -->
    <mvc:resources location="/WEB-INF/static/" mapping="/static/**" />
    
	<!-- 视图解释器 jsp -->
	<bean id="jspViewResolver" class="org.springframework.web.servlet.view.InternalResourceViewResolver">
		<property name="prefix" value="/WEB-INF/controller/"/>
		<property name="suffix" value=".jsp"/>
	</bean>
</beans>

　3、加入log日志打印

　controller和service子项目resource中创建log4j.properties文件

log4j.rootLogger=info, stdout
log4j.appender.stdout=org.apache.log4j.ConsoleAppender
log4j.appender.stdout.layout=org.apache.log4j.PatternLayout
log4j.appender.stdout.layout.ConversionPattern=%d %p [%c] - %m%n

4、测试

分别为controller和service添加干净的tomcat，记得要保证端口号不一致，否则会报端口号已占用的错误。

5、创建测试的controller和页面

package com.test.core.controller;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestParam;

import com.test.core.bean.TestBook;
import com.test.core.service.TestBookService;

@Controller
public class TestBookController {
	public static void main(String[] args) {
		System.out.println(reverse("I love java"));
	}

	static String reverse(String str) {
		String[] strs = str.split(" ");
		StringBuilder sb = new StringBuilder();
		for (int i = strs.length - 1; i >= 0; i--) {
			sb.append(strs[i] + " ");
		}
		return sb.toString();
	}

	@RequestMapping(value = "/index.do")
	public String index() {
		return "index";
	}

	@Autowired
	TestBookService testBookService;

	@RequestMapping(value = "/testDubbo.do")
	public String testDubbo(Model model, @RequestParam String id) {
		TestBook testBook = testBookService.findById(id);
		model.addAttribute("book", testBook);
		return "testDubbo";
	}

}

<%@ page language="java" contentType="text/html; charset=UTF-8"
    pageEncoding="UTF-8"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>Insert title here</title>
</head>
<body>
	hello springmvc
</body>
</html>

启动controller的tomcat，并在浏览器输入http://localhost:8080/controller/index.do　　

四、整合dubbo

1、安装zookeeper

下载zookeeper-3.4.10

备份zoo_sample文件并复制一份命名为zoo.cfg

# The number of milliseconds of each tick
tickTime=2000
# The number of ticks that the initial 
# synchronization phase can take
initLimit=10
# The number of ticks that can pass between 
# sending a request and getting an acknowledgement
syncLimit=5
# the directory where the snapshot is stored.
# do not use /tmp for storage, /tmp here is just 
# example sakes.
dataDir=D:\develop tools\zookeeper-3.4.10\data
dataLogDir=D:\develop tools\zookeeper-3.4.10\log
# the port at which the clients will connect
clientPort=2181
# the maximum number of client connections.
# increase this if you need to handle more clients
#maxClientCnxns=60
#
# Be sure to read the maintenance section of the 
# administrator guide before turning on autopurge.
#
# http://zookeeper.apache.org/doc/current/zookeeperAdmin.html#sc_maintenance
#
# The number of snapshots to retain in dataDir
#autopurge.snapRetainCount=3
# Purge task interval in hours
# Set to "0" to disable auto purge feature
#autopurge.purgeInterval=1

　2、dubbo工作原理图　

　3、搭建Dubbo服务提供方

　service中resource/config中添加dubbo-provider.xml文件

<beans xmlns="http://www.springframework.org/schema/beans"
	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:mvc="http://www.springframework.org/schema/mvc"
	xmlns:context="http://www.springframework.org/schema/context"
	xmlns:aop="http://www.springframework.org/schema/aop" 
	xmlns:tx="http://www.springframework.org/schema/tx"
	xmlns:task="http://www.springframework.org/schema/task"
	xmlns:dubbo="http://code.alibabatech.com/schema/dubbo"
	xsi:schemaLocation="http://www.springframework.org/schema/beans 
		http://www.springframework.org/schema/beans/spring-beans-4.0.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-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/task
   		http://www.springframework.org/schema/task/spring-task-4.0.xsd
		http://code.alibabatech.com/schema/dubbo        
		http://code.alibabatech.com/schema/dubbo/dubbo.xsd">
		
	<!-- Dubbo提供方 -->
	<!-- 1：名称  计算机 区别 唯一 -->
	<dubbo:application name="test-service"/>
	<!-- 2：设置注册中心  地址  zookeeper在哪里  redis ... -->
<!-- 	<dubbo:registry address="127.0.0.1:2181,127.0.0.1:2182,127.0.0.1:2183" protocol="zookeeper"/> -->
 	<dubbo:registry address="127.0.0.1:2181" protocol="zookeeper"/> 
     <!-- 设置不注册 -->
<!--	<dubbo:registry address="N/A"/>-->
	<!-- 3：dubbo://127.0.0.1:20880  默认  设置提供服务的端口号 -->
	<dubbo:protocol port="20880" name="dubbo"/>
	<!-- 4： 暴露实现类 实现类中的ref与注解中的名字一样-->
	<dubbo:service interface="com.test.core.service.TestBookService" ref="testBookService"/>

    <bean id="testBookService" class="com.test.core.service.TestBookServiceImpl" />
</beans>

　4、搭建服务消费方

在service中的springmvc-controller.xml中加入

<import resource="dubbo-consumer.xml"/>

　controller中resource下创建dubbo-consumer.xml

<beans xmlns="http://www.springframework.org/schema/beans"
	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:mvc="http://www.springframework.org/schema/mvc"
	xmlns:context="http://www.springframework.org/schema/context"
	xmlns:aop="http://www.springframework.org/schema/aop" 
	xmlns:tx="http://www.springframework.org/schema/tx"
	xmlns:task="http://www.springframework.org/schema/task"
	xmlns:dubbo="http://code.alibabatech.com/schema/dubbo"
	xsi:schemaLocation="http://www.springframework.org/schema/beans 
		http://www.springframework.org/schema/beans/spring-beans-4.0.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-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/task
   		http://www.springframework.org/schema/task/spring-task-4.0.xsd
		http://code.alibabatech.com/schema/dubbo        
		http://code.alibabatech.com/schema/dubbo/dubbo.xsd">
		
	
	<!-- Dubbo消费方 -->
	<!-- 1：名称  计算机 区别 唯一 -->
	<dubbo:application name="controller"/>
	<dubbo:registry address="N/A" check="false"/>
	<dubbo:reference interface="com.test.core.service.TestBookService" id="testBookService"
		url="dubbo://127.0.0.1:20880" 
	/>
	<!-- 全局设置 -->
	<dubbo:consumer timeout="600000" check="false"/>
</beans>

5、创建测试页面

<%@ page language="java" contentType="text/html; charset=UTF-8"
    pageEncoding="UTF-8"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>Insert title here</title>
</head>
<body>
	${ requestScope.book}
</body>
</html>

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原文地址：https://www.cnblogs.com/dream-to-pku/p/8607865.html