如何使用分布式进行拆分?

Hey Zookeeper Dubbo

Never underestimate your power to change yourself! – 永远不要低估你改变自我的能力！

大家都知道现在基本的成型的公司,一般都使用了分布式开发,所以今天就带大家通过分布式拆分完成一个基本的案例

基于spring框架,首先创建父类 travel-parent 类型是pom聚和类里面存储的是依赖包的版本方便管理

依赖包

<groupId>com.test.travel</groupId>
    <artifactId>travel-parent</artifactId>
    <version>1.0-SNAPSHOT</version>

    <!--
        这是整个项目的父类  并且是聚合类 里面包括了 所有的依赖包的 版本
    -->
    <packaging>pom</packaging>

    <!-- 集中定义依赖版本号 -->
    <properties>
        <junit.version>4.12</junit.version>
        <spring.version>4.3.11.RELEASE</spring.version>
        <mybatis.version>3.4.2</mybatis.version>
        <mybatis.spring.version>1.3.0</mybatis.spring.version>
        <mysql.version>5.1.32</mysql.version>
        <slf4j.version>1.6.1</slf4j.version>
        <jackson.version>2.7.4</jackson.version>
        <jstl.version>1.2</jstl.version>
        <servlet-api.version>3.1.0</servlet-api.version>
        <pagehelper.version>5.0.3</pagehelper.version>
        <druid.version>1.0.29</druid.version>
        <dubbo.version>2.5.7</dubbo.version>
        <zookeeper.version>3.4.10</zookeeper.version>
        <zkclient.version>0.1</zkclient.version>
        <commons-fileupload.version>1.3.1</commons-fileupload.version>
        <fastdfs_client.version>1.25</fastdfs_client.version>
        <jedis.version>2.7.2</jedis.version>
        <solr.version>5.5.5</solr.version>
        <activemq.version>5.11.2</activemq.version>
        <freemarker.version>2.3.23</freemarker.version>
        <quartz.version>2.2.3</quartz.version>
        <net.version>3.6</net.version>
    </properties>

    <dependencyManagement>
        <dependencies>
            <!--日志包-->
            <dependency>
                <groupId>org.slf4j</groupId>
                <artifactId>slf4j-api</artifactId>
                <version>${slf4j.version}</version>
            </dependency>
            <dependency>
                <groupId>org.slf4j</groupId>
                <artifactId>slf4j-log4j12</artifactId>
                <version>${slf4j.version}</version>
            </dependency>
            <!--servlet-->
            <dependency>
                <groupId>javax.servlet</groupId>
                <artifactId>javax.servlet-api</artifactId>
                <version>${servlet-api.version}</version>
            </dependency>
            <dependency>
                <groupId>jstl</groupId>
                <artifactId>jstl</artifactId>
                <version>${jstl.version}</version>
            </dependency>
            <!-- Mybatis -->
            <dependency>
                <groupId>org.mybatis</groupId>
                <artifactId>mybatis</artifactId>
                <version>${mybatis.version}</version>
            </dependency>
            <dependency>
                <groupId>org.mybatis</groupId>
                <artifactId>mybatis-spring</artifactId>
                <version>${mybatis.spring.version}</version>
            </dependency>
            <!--mybatis分页插件-->
            <dependency>
                <groupId>com.github.pagehelper</groupId>
                <artifactId>pagehelper</artifactId>
                <version>${pagehelper.version}</version>
            </dependency>
            <!--mysql驱动-->
            <dependency>
                <groupId>mysql</groupId>
                <artifactId>mysql-connector-java</artifactId>
                <version>${mysql.version}</version>
            </dependency>
            <!--spring相关包-->
            <dependency>
                <groupId>org.springframework</groupId>
                <artifactId>spring-context</artifactId>
                <version>${spring.version}</version>
            </dependency>
            <dependency>
                <groupId>org.springframework</groupId>
                <artifactId>spring-web</artifactId>
                <version>${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>${spring.version}</version>
            </dependency>
            <dependency>
                <groupId>org.springframework</groupId>
                <artifactId>spring-context-support</artifactId>
                <version>${spring.version}</version>
            </dependency>
            <!-- Jackson Json处理工具包 -->
            <dependency>
                <groupId>com.fasterxml.jackson.core</groupId>
                <artifactId>jackson-databind</artifactId>
                <version>${jackson.version}</version>
            </dependency>
            <dependency>
                <groupId>org.springframework</groupId>
                <artifactId>spring-jms</artifactId>
                <version>${spring.version}</version>
            </dependency>
            <!--数据源-->
            <dependency>
                <groupId>com.alibaba</groupId>
                <artifactId>druid</artifactId>
                <version>${druid.version}</version>
            </dependency>
            <dependency>
                <groupId>org.springframework</groupId>
                <artifactId>spring-context-support</artifactId>
                <version>${spring.version}</version>
            </dependency>
            <!-- dubbo相关 -->
            <dependency>
                <groupId>com.alibaba</groupId>
                <artifactId>dubbo</artifactId>
                <version>${dubbo.version}</version>
                <exclusions>
                    <exclusion>
                        <groupId>org.springframework</groupId>
                        <artifactId>spring</artifactId>
                    </exclusion>
                    <exclusion>
                        <groupId>org.mortbay.jetty</groupId>
                        <artifactId>servlet-api</artifactId>
                    </exclusion>
                </exclusions>
            </dependency>
            <dependency>
                <groupId>org.apache.zookeeper</groupId>
                <artifactId>zookeeper</artifactId>
                <version>${zookeeper.version}</version>
            </dependency>
            <dependency>
                <groupId>com.github.sgroschupf</groupId>
                <artifactId>zkclient</artifactId>
                <version>${zkclient.version}</version>
            </dependency>

            <!-- fastdfs -->
            <dependency>
                <groupId>fastdfs_client</groupId>
                <artifactId>fastdfs_client</artifactId>
                <version>${fastdfs_client.version}</version>
            </dependency>
            <dependency>
                <groupId>commons-fileupload</groupId>
                <artifactId>commons-fileupload</artifactId>
                <version>${commons-fileupload.version}</version>
            </dependency>
            <!--Jedis的jar-->
            <dependency>
                <groupId>redis.clients</groupId>
                <artifactId>jedis</artifactId>
                <version>${jedis.version}</version>
            </dependency>
            <!--solr-->
            <dependency>
                <groupId>org.apache.solr</groupId>
                <artifactId>solr-solrj</artifactId>
                <version>${solr.version}</version>
            </dependency>

            <!--junit测试-->
            <dependency>
                <groupId>junit</groupId>
                <artifactId>junit</artifactId>
                <version>${junit.version}</version>
                <scope>test</scope>
            </dependency>
            <!--ActiveMQ-->
            <dependency>
                <groupId>org.apache.activemq</groupId>
                <artifactId>activemq-all</artifactId>
                <version>${activemq.version}</version>
            </dependency>
            <dependency>
                <groupId>org.freemarker</groupId>
                <artifactId>freemarker</artifactId>
                <version>${freemarker.version}</version>
            </dependency>
            <dependency>
                <groupId>org.quartz-scheduler</groupId>
                <artifactId>quartz</artifactId>
                <version>${quartz.version}</version>
            </dependency>
            <dependency>
                <groupId>commons-net</groupId>
                <artifactId>commons-net</artifactId>
                <version>${net.version}</version>
            </dependency>
        </dependencies>
    </dependencyManagement>

    <build>
        <finalName>${project.artifactId}</finalName>
        <plugins>
            <!-- java编译插件 -->
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-compiler-plugin</artifactId>
                <version>3.5.1</version>
                <configuration>
                    <source>1.8</source>
                    <target>1.8</target>
                    <encoding>UTF-8</encoding>
                </configuration>
            </plugin>
        </plugins>
        <pluginManagement>
            <plugins>
                <!-- 配置Tomcat插件 -->
                <plugin>
                    <groupId>org.apache.tomcat.maven</groupId>
                    <artifactId>tomcat7-maven-plugin</artifactId>
                    <version>2.2</version>
                </plugin>
            </plugins>
        </pluginManagement>
    </build>  

里面的dependencyManagement与 dependencies的区别是:

　　dependencyManagement里只是声明依赖,并不实现引入,因此子项目需要显式的声明需要用的依赖.如果不在子项目中声明依赖,是不会从父项目中继承下来的；只有在子项目中写了该依赖项,并且没有指定具体版本,才会从父项目中继承该项,并且version和scope都读取自父pom;另外如果子项目中指定了版本号,那么会使用子项目中指定的jar版本.

    dependencies即使在子模块中不写该依赖项,那么子模块仍然会从父项目中继承该依赖项（全部继承）        

写完parent后进行clean 然后 install

继续写实体类和工具类 travel-common 是个类型是jar的形式,父类是 parent

<artifactId>travel-common</artifactId>
<version>1.0-SNAPSHOT</version>
<!--
    实体类的 工程类 依赖 父类的包
-->
<parent>
    <groupId>com.test.travel</groupId>
    <artifactId>travel-parent</artifactId>
    <version>1.0-SNAPSHOT</version>
</parent>

实体类注意实现序列化接口

public class City implements Serializable {
    private Integer id;
    public Integer getId() {
        return id;
    }
    public void setId(Integer id) {
        this.id = id;
    } 
}

编写业务层,以及数据层 travel-manager 这是个 pom聚合类里面有三个模块,数据层,接口层,业务层,依赖父类以及实体类

<groupId>com.test.travel</groupId>
    <artifactId>travel-manager</artifactId>
    <version>1.0-SNAPSHOT</version>
    <modules>
        <module>travel-manager-dao</module>
        <module>travel-manager-interface</module>
        <module>travel-manager-service</module>
    </modules>
    <packaging>pom</packaging>

    <!--
        父类
    -->
    <parent>
        <groupId>com.test.travel</groupId>
        <artifactId>travel-parent</artifactId>
        <version>1.0-SNAPSHOT</version>
    </parent>
    <!--
       依赖 实体类
    -->
    <dependencies>
        <dependency>
            <groupId>com.test.travel</groupId>
            <artifactId>travel-common</artifactId>
            <version>1.0-SNAPSHOT</version>
        </dependency>
    </dependencies>

三个模块中的数据层的实现 travel-manager-dao 依赖mybatis 是个jar包 pom 文件如下

 <parent>
        <artifactId>travel-manager</artifactId>
        <groupId>com.test.travel</groupId>
        <version>1.0-SNAPSHOT</version>
    </parent>
    <modelVersion>4.0.0</modelVersion>
    <packaging>jar</packaging>
    <!--
        这是 数据层,需要连接数据库 是个jar 包  依赖 Mybatis
    -->
    <artifactId>travel-manager-dao</artifactId>
    <dependencies>
        <dependency>
            <groupId>org.mybatis</groupId>
            <artifactId>mybatis</artifactId>
        </dependency>
    </dependencies>
<!--
    扫mapper
-->
    <build>
        <resources>
            <resource>
                <directory>src/main/java</directory>
                <includes>
                    <include>**/*.properties</include>
                    <include>**/*.xml</include>
                </includes>
                <filtering>true</filtering>
            </resource>
        </resources>
    </build>

数据层的接口以及实现Mapper文件

    public interface CityMapper {

        void addCity(String name);

        void updateCity(City city);

        void deleteCity(Integer id);

        List<City> getCityList();

    }

    Mapper

    <mapper namespace="com.test.travel.manager.dao.CityMapper">
        <!--
            id必须和接口中对应方法的名字一样
            parameterType 必须和方法的参数一致
            resultType必须和方法的返回值一致
        -->
        <resultMap id="cityMap" type="com.test.travel.common.pojo.City">
            <id property="id" column="ID"/>
            <result property="name" column="NAME"/>
        </resultMap>
    
        <select id="getCityList" resultMap="cityMap" parameterType="com.test.travel.common.pojo.City">
            select ID, NAME from CITY
            <where>
                <if test="id !=null"> and ID=#{id}</if>
                <if test="name !=null and name!=''"> and NAME like concat('%',#{name},'%')</if>
            </where>
        </select>
    
        <insert id="addCity" parameterType="String" useGeneratedKeys="true">
            insert into CITY(NAME) values (#{name})
        </insert>
    
        <update id="updateCity" parameterType="com.test.travel.common.pojo.City">
            update CITY
            set NAME=#{name}
            where ID=#{id}
        </update>
    
        <delete id="deleteCity" parameterType="int">
            delete from CITY where ID=#{id}
        </delete>
    </mapper>

三大模块之业务接口的实现是个jar类型 pom文件如下

    <parent>
        <artifactId>travel-manager</artifactId>
        <groupId>com.test.travel</groupId>
        <version>1.0-SNAPSHOT</version>
    </parent>
    <modelVersion>4.0.0</modelVersion>

    <!--
        业务层的  接口 也是 jar包
    -->
    <packaging>jar</packaging>
    <artifactId>travel-manager-interface</artifactId>        

具体接口如下:

public interface CityService {
    void addCity(String name);

    void updateCity(City city);

    void deleteCity(Integer id);

    List<City> getCityList();
}

三大模块中的业务实现类也是最重要的一个模块其进行了发布到zookeeper中,使用了dubbo,所以他是一个war包的形式 ,依赖数据层,以及业务接口层,依赖jar包其 pom 文件如下:

	    <parent>
			<artifactId>travel-manager</artifactId>
			<groupId>com.test.travel</groupId>
			<version>1.0-SNAPSHOT</version>
		</parent>
		<modelVersion>4.0.0</modelVersion>
		
		  <!--
                业务接口的  实现类   是 war包形式  需要发布到 Dubbo 中去
            -->
            <packaging>war</packaging>
            <artifactId>travel-manager-service</artifactId>
        
            <dependencies>
            <!-- 
                依赖的 接口 以及数据层
            -->
                <dependency>
                    <groupId>com.test.travel</groupId>
                    <artifactId>travel-manager-interface</artifactId>
                    <version>1.0-SNAPSHOT</version>
                </dependency>
                
                <dependency>
                    <groupId>com.test.travel</groupId>
                    <artifactId>travel-manager-dao</artifactId>
                    <version>1.0-SNAPSHOT</version>
                </dependency>
                <!--spring相关-->
                <dependency>
                    <groupId>org.springframework</groupId>
                    <artifactId>spring-context</artifactId>
                </dependency>
                <dependency>
                    <groupId>org.springframework</groupId>
                    <artifactId>spring-aspects</artifactId>
                </dependency>
                <dependency>
                    <groupId>org.springframework</groupId>
                    <artifactId>spring-jdbc</artifactId>
                </dependency>
                <dependency>
                    <groupId>org.mybatis</groupId>
                    <artifactId>mybatis-spring</artifactId>
                </dependency>
                <!--数据库驱动-->
                <dependency>
                    <groupId>mysql</groupId>
                    <artifactId>mysql-connector-java</artifactId>
                </dependency>
                <!--数据库连接池-->
                <dependency>
                    <groupId>com.alibaba</groupId>
                    <artifactId>druid</artifactId>
                </dependency>
                <!--dubbo服务相关-->
                <dependency>
                    <groupId>com.alibaba</groupId>
                    <artifactId>dubbo</artifactId>
                </dependency>
                <dependency>
                    <groupId>org.apache.zookeeper</groupId>
                    <artifactId>zookeeper</artifactId>
                </dependency>
                <dependency>
                    <groupId>com.github.sgroschupf</groupId>
                    <artifactId>zkclient</artifactId>
                </dependency>
            </dependencies>
        
            <build>
                <plugins>
                    <plugin>
                        <groupId>org.apache.tomcat.maven</groupId>
                        <artifactId>tomcat7-maven-plugin</artifactId>
                        <configuration>
                            <port>8080</port>
                            <path>/</path>
                        </configuration>
                    </plugin>
                </plugins>
            </build>

具体代码如下: 业务实现类

@Service
public class CityServiceImpl implements CityService {
// 通过spring的方式进行创建类
    @Autowired
    private CityMapper cityMapper;
    @Override
    public void addCity(String name) {
            cityMapper.addCity(name);
    }

    @Override
    public void updateCity(City city) {
        cityMapper.updateCity(city);
    }

    @Override
    public void deleteCity(Integer id) {
        cityMapper.deleteCity(id);
    }

    @Override
    public List<City> getCityList() {
        return cityMapper.getCityList();
    }
}

配置文件基本配置如下: 需要 jdbc.properties数据库以及log4j.properties打印日志的配置文件

   // 加载 配置文件
 <context:property-placeholder location="classpath:jdbc.properties" ignore-unresolvable="true"/>
    // 配置 连接池
    <bean id="dataSource" class="org.springframework.jdbc.datasource.DriverManagerDataSource">
        <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>
    // 配置会话工厂
    <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
        <property name="dataSource" ref="dataSource"/>
        // 进行 加载 Mapper.xml 文件 以及 实体类
        <property name="mapperLocations" value="classpath:com/test/travel/manager/dao/*.xml"/>
        <property name="typeAliasesPackage" value="com.test.travel.common.pojo"/>
    </bean>
    
    <!--批量扫描dao的接口 就是Mapper-->
    <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
        <property name="basePackage" value="com.test.travel.manager.dao"/>
    </bean>
    // 事务管理器
    <bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
        <property name="dataSource" ref="dataSource"/>
    </bean>
    // 事务的具体 配置
    <tx:advice id="txAdvice" transaction-manager="transactionManager">
        <tx:attributes>
            <tx:method name="add*" rollback-for="Exception"/>
            <tx:method name="delete*" rollback-for="Exception"/>
            <tx:method name="update*" rollback-for="Exception"/>
            <tx:method name="get*" propagation="SUPPORTS" read-only="true"/>
        </tx:attributes>
    </tx:advice>
    // AOP切面编程
    <aop:config>
        <aop:pointcut id="point" expression="execution(* com.test.travel.manager.service..*(..))"/>
        <aop:advisor advice-ref="txAdvice" pointcut-ref="point"/>
    </aop:config>
    
    </beans>

继续配置 Dubbo以及 Zookeeper的配置文件:

    <?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">

    <!--扫描所有的service-->
    <context:component-scan base-package="com.test.travel.manager.service">
        <context:include-filter type="annotation" expression="org.springframework.stereotype.Service"/>
    </context:component-scan>

    <!-- 发布dubbo服务 -->
    <!-- 提供方应用信息,用于计算依赖关系 -->
    <dubbo:application name="travel-manager" />
    <!-- 注册中心的地址 -->
    <dubbo:registry protocol="zookeeper" address="你的域名ip:端口" />
    <!-- 用dubbo协议在20880端口暴露服务 -->
    <dubbo:protocol name="dubbo" port="20880" />
    // 需要把这个 实现类进行注册到 Zookeeper中
    <dubbo:service interface="com.test.travel.manager.service.CityService" ref="cityServiceImpl"
                   timeout="300000"/>   
                   
    </beans>                         

接下来就是加载这些配置文件了在travel-manager-service业务实现模块中进行使用webapp加载文件

<web-app xmlns="http://xmlns.jcp.org/xml/ns/javaee"
         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee
                      http://xmlns.jcp.org/xml/ns/javaee/web-app_3_1.xsd"
         version="3.1"
         metadata-complete="true">

    <context-param>
        <param-name>contextConfigLocation</param-name>
        <param-value>classpath:spring-*.xml</param-value>
    </context-param>
    <listener>
        <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
    </listener>
</web-app>    

之后就可已启动该项目了,然后作为提供者进行提供接口,再写一个消费者,就是controller来实现该业务.

创建一个travel-manager-web项目里面包含了controller ,其类型也是war,其pom文件如下:

 <modelVersion>4.0.0</modelVersion>

    <groupId>com.test.travel</groupId>
    <artifactId>travel-manager-web</artifactId>
    <version>1.0-SNAPSHOT</version>

    <packaging>war</packaging>
    <!--
        controller层
    -->
    <!--
        父类以及 引用类
    -->
    <parent>
        <groupId>com.test.travel</groupId>
        <artifactId>travel-parent</artifactId>
        <version>1.0-SNAPSHOT</version>
    </parent>

    <dependencies>
        <!--通用工程,实体类和工具类-->
        <dependency>
            <groupId>com.test.travel</groupId>
            <artifactId>travel-common</artifactId>
            <version>1.0-SNAPSHOT</version>
        </dependency>
        <!--后台接口工程-->
        <dependency>
            <groupId>com.test.travel</groupId>
            <artifactId>travel-manager-interface</artifactId>
            <version>1.0-SNAPSHOT</version>
        </dependency>
        <!--springMVC-->
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-webmvc</artifactId>
        </dependency>
        <!-- JSP相关 -->
        <dependency>
            <groupId>jstl</groupId>
            <artifactId>jstl</artifactId>
        </dependency>
        <!--servlet-->
        <dependency>
            <groupId>javax.servlet</groupId>
            <artifactId>javax.servlet-api</artifactId>
            <!--期望JDK、容器或使用者会提供这个依赖,否则会与tomcat插件冲突-->
            <scope>provided</scope>
        </dependency>
        <!--dubbo服务相关-->
        <dependency>
            <groupId>com.alibaba</groupId>
            <artifactId>dubbo</artifactId>
        </dependency>
        <dependency>
            <groupId>org.apache.zookeeper</groupId>
            <artifactId>zookeeper</artifactId>
        </dependency>
        <dependency>
            <groupId>com.github.sgroschupf</groupId>
            <artifactId>zkclient</artifactId>
        </dependency>
        <dependency>
            <groupId>com.fasterxml.jackson.core</groupId>
            <artifactId>jackson-databind</artifactId>
        </dependency>
    </dependencies>
    <build>
        <finalName>travel-manager-web</finalName>
        <plugins>
            <plugin>
                <groupId>org.apache.tomcat.maven</groupId>
                <artifactId>tomcat7-maven-plugin</artifactId>
                <configuration>
                    <port>8081</port>
                    <path>/</path>
                </configuration>
            </plugin>
        </plugins>
    </build>                                   

集体实现类:

@RestController
@RequestMapping("/city")
public class CityController {
    @Autowired
    private CityService cityService;
    @RequestMapping("/citylist.html")
    public List<City> getAllCity(){
        return cityService.getCityList();
    }
}

配置文件如下: 起一个 springMVC-servlet.xml 的文件用来存放该配置,在WEB-INF目录下,DispatcherServlet会默认加载-servlet.xml结尾的文件.

<?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:mvc="http://www.springframework.org/schema/mvc"
       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://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc.xsd
  http://code.alibabatech.com/schema/dubbo http://code.alibabatech.com/schema/dubbo/dubbo.xsd">

    <!-- 启动自动扫描 -->
    <context:component-scan base-package="com.test.travel.manager.controller">
        <context:include-filter type="annotation" expression="org.springframework.stereotype.Controller"/>
    </context:component-scan>
    <mvc:annotation-driven content-negotiation-manager="contentNegotiationManagerFactoryBean">
    </mvc:annotation-driven>
    
    <!--配置返回值转换器-->
    <bean id="contentNegotiationManagerFactoryBean"
          class="org.springframework.web.accept.ContentNegotiationManagerFactoryBean">
        <!--是否支持后缀匹配-->
        <property name="favorPathExtension" value="false"/>
        <!--是否支持参数匹配-->
        <property name="favorParameter" value="false"/>
        <!--是否accept-header匹配-->
        <property name="ignoreAcceptHeader" value="false"/>
        <!--支持json格式-->
        <property name="mediaTypes">
            <map>
                <entry key="json" value="application/json"/>
            </map>
        </property>
    </bean>

    <!-- 引用dubbo服务 -->
    <dubbo:application name="travel-manager-web"/>
    <dubbo:registry protocol="zookeeper" address="目标地址:端口号"/>
    <dubbo:reference interface="com.test.travel.manager.service.CityService" id="cityService"/>
</beans>

其web.xml文件如下:

<?xml version="1.0" encoding="UTF-8"?>
<web-app 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_3_0.xsd"
         version="3.0">

    <!--配置DispatcherServlet -->
    <servlet>
        <servlet-name>springMVC</servlet-name>
        <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
        <!--<init-param>-->
            <!--<param-name>contextConfigLocation</param-name>-->
            <!--<param-value>classpath:springMVC*.xml</param-value>-->
        <!--</init-param>-->
    </servlet>
    <servlet-mapping>
        <servlet-name>springMVC</servlet-name>
        <url-pattern>*.html</url-pattern>
    </servlet-mapping>
    <!--解决乱码-->
    <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>
    </filter>
    <filter-mapping>
        <filter-name>EncodingFilter</filter-name>
        <url-pattern>*.html</url-pattern>
    </filter-mapping>
</web-app>

之后启动然后访问该 Controller的接口就OK了,这样就完成了基本的拆分. 最近这段时间,我会整理一个关于分布式的文档,让大家能够简单了解其原理,以便更好地使用.

基于dubbo和Zookeeper完成简单案例

Hey Zookeeper Dubbo

依赖包

CATALOG

FEATURED TAGS

FRIENDS