dubbo整合zookeeper-Demo

一 、前提搭好zookeeper，创建项目，其中zmin-web和zmin-serivce为web，其余为module。

common存放公共的jar依赖

    <properties>
        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
        <spring.version>4.1.7.RELEASE</spring.version>
        <compiler.version>1.8</compiler.version>
    </properties>
    <dependencies>
        <!-- *********spring***********-->
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-aop</artifactId>
            <version>${spring.version}</version>
        </dependency>

        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-context</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-core</artifactId>
            <version>${spring.version}</version>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-expression</artifactId>
            <version>${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-mock</artifactId>
            <version>2.0.8</version>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-orm</artifactId>
            <version>${spring.version}</version>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-tx</artifactId>
            <version>${spring.version}</version>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-oxm</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-web</artifactId>
            <version>${spring.version}</version>
        </dependency>

        <dependency>
            <groupId>org.mybatis</groupId>
            <artifactId>mybatis-ehcache</artifactId>
            <version>1.0.0</version>
        </dependency>

        <dependency>
            <groupId>org.mybatis</groupId>
            <artifactId>mybatis</artifactId>
            <version>3.2.1</version>
        </dependency>
        <dependency>
            <groupId>org.mybatis</groupId>
            <artifactId>mybatis-spring</artifactId>
            <version>1.2.0</version>
        </dependency>

        <dependency>
            <groupId>com.alibaba</groupId>
            <artifactId>dubbo</artifactId>
            <version>2.6.0</version>
        </dependency>
        <dependency>
            <groupId>com.101tec</groupId>
            <artifactId>zkclient</artifactId>
            <version>0.9</version>
        </dependency>

        <dependency>
            <groupId>mysql</groupId>
            <artifactId>mysql-connector-java</artifactId>
            <version>5.1.34</version>
        </dependency>
        <dependency>
            <groupId>com.alibaba</groupId>
            <artifactId>druid</artifactId>
            <version>1.0.9</version>
        </dependency>
        <dependency>
            <groupId>zmin</groupId>
            <artifactId>zmin-bean</artifactId>
            <version>1.0-SNAPSHOT</version>
        </dependency>
    </dependencies>

web层：

web.xml配置

<!DOCTYPE web-app PUBLIC
 "-//Sun Microsystems, Inc.//DTD Web Application 2.3//EN"
 "http://java.sun.com/dtd/web-app_2_3.dtd" >

<web-app>
  <display-name>Archetype Created Web Application</display-name>

  <!-- 配置spring -->
  <context-param>
    <param-name>contextConfigLocation</param-name>
    <param-value>classpath:spring/applicationContext*.xml</param-value><!-- 如web层需扫依赖包的配置classpath*：/ 给坑过 -->
  </context-param>

  <!-- 使用监听器加载Spring配置文件 -->
  <listener>
    <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
  </listener>
  <!-- 配置SpringMVC核心控制器 -->
  <servlet>
    <servlet-name>springmvc-web</servlet-name>
    <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
    <init-param>
      <param-name>contextConfigLocation</param-name>
      <param-value>classpath:spring/springmvc.xml</param-value> 
    </init-param>
  </servlet>

  <servlet-mapping>
    <servlet-name>springmvc-web</servlet-name>
    <url-pattern>*.action</url-pattern>
  </servlet-mapping>
</web-app>

springmvc配置

<?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:context="http://www.springframework.org/schema/context"
       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">
    <!-- 配置controller扫描包 -->
    <context:component-scan base-package="com.zmin.controller"/>
</beans>

dubbo消费方配置：

<?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:dubbo="http://code.alibabatech.com/schema/dubbo"
       xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd http://code.alibabatech.com/schema/dubbo http://code.alibabatech.com/schema/dubbo/dubbo.xsd">
    
    <dubbo:application name="test-customer"/>
    <dubbo:registry address="zookeeper://192.168.1.69:2181" check="false"/>
    <dubbo:reference id="testService" interface="com.zmin.iservice.ITestService" check="false"/>
</beans>

controller

package com.zmin.controller;

        import com.zmin.iservice.ITestService;
        import org.springframework.beans.factory.annotation.Autowired;
        import org.springframework.stereotype.Controller;
        import org.springframework.web.bind.annotation.RequestMapping;
        import org.springframework.web.servlet.ModelAndView;

@Controller
public class TestController {
    @Autowired
    ITestService testService;

    @RequestMapping("test")
    public ModelAndView test(){
        ModelAndView mav = new ModelAndView();
        String testData = testService.getTest();
        System.out.print(testData);
        mav.setViewName("WEB-INF/hello.jsp");
        return  mav;
    }
}

Service层

web.xml配置（Spring托管配置）

<!DOCTYPE web-app PUBLIC
 "-//Sun Microsystems, Inc.//DTD Web Application 2.3//EN"
 "http://java.sun.com/dtd/web-app_2_3.dtd" >

<web-app>
  <display-name>Archetype Created Web Application</display-name>

  <!-- 配置spring -->
  <context-param>
    <param-name>contextConfigLocation</param-name>
    <param-value>classpath*:spring/applicationContext*.xml</param-value>

 <!-- classpath:* 一定要加星,不加扫不到dao层的配置 不能交给spring托管 -->

  </context-param>

  <!-- 使用监听器加载Spring配置文件 -->
  <listener>
    <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
  </listener>
</web-app>

dubbo消费方配置

<?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:context="http://www.springframework.org/schema/context"
       xmlns:dubbo="http://code.alibabatech.com/schema/dubbo"
       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://code.alibabatech.com/schema/dubbo http://code.alibabatech.com/schema/dubbo/dubbo.xsd">
    <!-- 配置@service注解包扫描 给spring托管-->
    <context:component-scan base-package="com.zmin.service" />
    <!-- 提供方应用信息，用于计算依赖关系 -->
    <dubbo:application name="test-provider"  />

    <!-- 使用multicast广播注册中心暴露服务地址 -->
    <!--  <dubbo:registry address="multicast://224.5.6.7:1234" /> -->

    <!-- 使用zookeeper注册中心暴露服务地址 -->
    <dubbo:registry address="zookeeper://192.168.1.69:2181" />

    <!-- 用dubbo协议在20880端口暴露服务 -->
    <dubbo:protocol name="dubbo" port="20880" />

    <!-- 声明需要暴露的服务接口 -->
    <dubbo:service interface="com.zmin.iservice.ITestService" ref="testService" />

</beans>

service 代码

package com.zmin.service;

import com.zmin.bean.User;
import com.zmin.iservice.ITestService;
import com.zmin.mapper.UserMapper;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

@Service
public class TestService implements ITestService {
    @Autowired
    UserMapper userMapper;
    @Override
    public String getTest() {
        User user = userMapper.selectByPrimaryKey(1);
        if(null == user){
            System.out.print("00000000000000000000000000000000");
        }
        return "你是谁";
    }
}

dao层

<?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:context="http://www.springframework.org/schema/context"
       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-4.2.xsd">
    <context:component-scan base-package="com.zmin.mapper"/>
    <!--扫描文件-->
    <context:property-placeholder location="classpath:properties/dbconfig.properties" />

    <!-- 阿里 druid数据库连接池 -->
    <bean id="dataSource" class="com.alibaba.druid.pool.DruidDataSource" destroy-method="close">
        <!-- 数据库基本信息配置 -->
        <property name="url" value="${dburl}" />
        <property name="username" value="${uname}" />
        <property name="password" value="${password}" />
        <property name="driverClassName" value="${driverClassName}" />
        <property name="filters" value="${filters}" />
        <!-- 最大并发连接数 -->
        <property name="maxActive" value="50" />
        <!-- 初始化连接数量 -->
        <property name="initialSize" value="${initialSize}" />
        <!-- 配置获取连接等待超时的时间 -->
        <property name="maxWait" value="${maxWait}" />
        <!-- 最小空闲连接数 -->
        <property name="minIdle" value="${minIdle}" />
        <!-- 配置间隔多久才进行一次检测，检测需要关闭的空闲连接，单位是毫秒 -->
        <property name="timeBetweenEvictionRunsMillis" value="${timeBetweenEvictionRunsMillis}" />
        <!-- 配置一个连接在池中最小生存的时间，单位是毫秒 -->
        <property name="minEvictableIdleTimeMillis" value="${minEvictableIdleTimeMillis}" />
        <property name="validationQuery" value="${validationQuery}" />
        <property name="testWhileIdle" value="${testWhileIdle}" />
        <property name="testOnBorrow" value="${testOnBorrow}" />
        <property name="testOnReturn" value="${testOnReturn}" />
        <property name="maxOpenPreparedStatements" value="${maxOpenPreparedStatements}" />
        <!-- 打开removeAbandoned功能 -->
        <property name="removeAbandoned" value="${removeAbandoned}" />
        <!-- 1800秒，也就是30分钟 -->
        <property name="removeAbandonedTimeout" value="${removeAbandonedTimeout}" />
        <!-- 关闭abanded连接时输出错误日志 -->
        <property name="logAbandoned" value="${logAbandoned}" />
    </bean>


    <!-- 配置mybatis -->
    <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
        <property name="dataSource" ref="dataSource"/>
        <!-- mapper扫描 -->
        <property name="mapperLocations" value="classpath*:com/zmin/mapper/*Mapper.xml"></property>
    </bean>

    <bean name="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
        <property name="dataSource" ref="dataSource"></property>
    </bean>

    <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
        <property name="basePackage" value="com.zmin.mapper"/>
        <property name="sqlSessionFactoryBeanName" value="sqlSessionFactory"/>
    </bean>

</beans>

dao 代码（加个注解）

package com.zmin.mapper;

import com.zmin.bean.User;
import com.zmin.bean.UserExample;
import java.util.List;
import org.apache.ibatis.annotations.Param;
import org.springframework.stereotype.Repository;

@Repository
public interface UserMapper {
    int countByExample(UserExample example);

    int deleteByExample(UserExample example);

    int deleteByPrimaryKey(Integer id);

    int insert(User record);

    int insertSelective(User record);

    List<User> selectByExample(UserExample example);

    User selectByPrimaryKey(Integer id);

    int updateByExampleSelective(@Param("record") User record, @Param("example") UserExample example);

    int updateByExample(@Param("record") User record, @Param("example") UserExample example);

    int updateByPrimaryKeySelective(User record);

    int updateByPrimaryKey(User record);
}

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