java：dubbo
demo_dubbo_consumer Maven Webapp:
DubboController.java:
package com.dubbo.controller; import java.util.List; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.stereotype.Controller; import org.springframework.web.bind.annotation.RequestMapping; import org.springframework.web.bind.annotation.ResponseBody; import com.dubbo.model.User; import com.dubbo.service.IUserService; @Controller public class DubboController { @Autowired private IUserService userService; @RequestMapping("/") @ResponseBody public List<User> findAllUsers() { return userService.findAllUsers(); } }
User.java:
package com.dubbo.model; import java.io.Serializable; public class User implements Serializable { private static final long serialVersionUID = -4971294264848511301L; private Long id; private String username; private String password; private Integer age; public Long getId() { return id; } public void setId(Long id) { this.id = id; } public String getUsername() { return username; } public void setUsername(String username) { this.username = username; } public String getPassword() { return password; } public void setPassword(String password) { this.password = password; } public Integer getAge() { return age; } public void setAge(Integer age) { this.age = age; } }
IUserService.java:
package com.dubbo.service; import java.util.List; import org.springframework.stereotype.Service; import com.dubbo.model.User; @Service public interface IUserService { List<User> findAllUsers(); }
applicationContext-consumer.xml:
<?xml version="1.0" encoding="UTF-8"?> <beans xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:tx="http://www.springframework.org/schema/tx" xmlns:aop="http://www.springframework.org/schema/aop" xmlns:dubbo="http://code.alibabatech.com/schema/dubbo" xmlns:context="http://www.springframework.org/schema/context" xmlns="http://www.springframework.org/schema/beans" xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx.xsd http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop.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"> <!-- 给consumer项目起一个别名，让起标识为消费者的配置信息，为了让dubbo知道 --> <dubbo:application name="dubbo-a-consumer" /> <!-- 需要依赖于zookeeper check="false":不需要去检查zookeeper的存活状态，连接不上直接报错 如果设置为true，就算zookeeper全部宕机，消费者项目也会一直做重新连接不会报错 --> <dubbo:registry address="zookeeper://172.16.49.165:2181" check="false" /> <!-- reference:引入 id:必须要provider的配置文件中id=userService interface:引入的是消费者自己的service接口信息，目的是为了id="userService"的实现类(生产者项目中)注入进来 --> <dubbo:reference id="userService" interface="com.dubbo.service.IUserService" check="false" /> </beans>
applicationContext-mvc.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:context="http://www.springframework.org/schema/context" xmlns:mvc="http://www.springframework.org/schema/mvc" xmlns:aop="http://www.springframework.org/schema/aop" 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.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop.xsd"> <!-- 自动扫描且只扫描@Controller --> <context:component-scan base-package="com.dubbo.controller" /> <!-- 当在web.xml 中 DispatcherServlet使用 <url-pattern>/</url-pattern> 映射时，能映射静态资源 --> <mvc:default-servlet-handler /> <!-- 可用在springmvc.xml配置文件中使用<mvc:annotation-driven>替代注解处理器和适配器的配置。 --> <mvc:annotation-driven> <mvc:message-converters> <bean class="org.springframework.http.converter.StringHttpMessageConverter"> <constructor-arg index="0" value="UTF-8" /> </bean> <bean class="org.springframework.http.converter.json.MappingJackson2HttpMessageConverter"> <property name="prettyPrint" value="true" /> </bean> </mvc:message-converters> </mvc:annotation-driven> </beans>
applicationContext.xml:
<?xml version="1.0" encoding="UTF-8"?> <beans xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:tx="http://www.springframework.org/schema/tx" xmlns:aop="http://www.springframework.org/schema/aop" xmlns:context="http://www.springframework.org/schema/context" xmlns="http://www.springframework.org/schema/beans" xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx.xsd http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd"> <!-- 扫描service --> <context:component-scan base-package="com.dubbo.service" /> <import resource="spring/applicationContext-consumer.xml"/> </beans>
log4j.properties:
log4j.rootLogger=DEBUG, Console
#Console
log4j.appender.Console=org.apache.log4j.ConsoleAppender
log4j.appender.Console.layout=org.apache.log4j.PatternLayout
log4j.appender.Console.layout.ConversionPattern=%-5p - %m%n
log4j.logger.org.springframework=ERROR
log4j.logger.org.mybatis.spring=ERROR
log4j.logger.org.apache.ibatis.logging.LogFactory=ERROR
log4j.logger.com.alibaba.druid.pool.DruidDataSource=ERROR
web.xml:
<?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"> <!--Spring入口文件的配置 --> <!-- 确定配置文件位置 --> <context-param> <param-name>contextConfigLocation</param-name> <param-value>classpath:applicationContext.xml</param-value> </context-param> <!-- 配置spring 监听器，加载xml配置文件 --> <listener> <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class> </listener> <!-- 解决POST请求的中文乱码 --> <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> <!-- DispatcherServlet：前端控制器 配置前端控制器servlet --> <servlet> <servlet-name>springmvc</servlet-name> <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class> <!--加载前端控制器配置文件 上下文配置位置 --> <init-param> <!--contextConfigLocation：指定springmvc配置的加载位置， 如果不指定则默认加 载WEB-INF/[DispatcherServlet的Servlet名字]-servlet.xml(例如springmvc-servlet.xml)。 --> <param-name>contextConfigLocation</param-name> <param-value>classpath:springmvc/applicationContext-mvc.xml</param-value> </init-param> <!-- 表示随WEB服务器启动 --> <load-on-startup>1</load-on-startup> </servlet> <servlet-mapping> <servlet-name>springmvc</servlet-name> <url-pattern>/</url-pattern> </servlet-mapping> </web-app>
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/maven-v4_0_0.xsd"> <modelVersion>4.0.0</modelVersion> <groupId>com.dubbo</groupId> <artifactId>demo_dubbo_consumer</artifactId> <packaging>war</packaging> <version>0.0.1-SNAPSHOT</version> <name>demo_dubbo_consumer Maven Webapp</name> <url>http://maven.apache.org</url> <properties> <!-- junit jar --> <junit.version>4.12</junit.version> <!-- spring and springmvc jar --> <spring.version>4.3.4.RELEASE</spring.version> <!-- json jar --> <jackson.version>2.8.1</jackson.version> <fastjson.version>1.2.17</fastjson.version> <!-- servlet, jsp and jstl jar --> <servlet-api.version>3.0.1</servlet-api.version> <jsp-api.version>2.0</jsp-api.version> <jstl.version>1.2</jstl.version> <!-- slf4j jar(log4j的jar包) --> <slf4j.version>1.7.7</slf4j.version> <!-- dubbo jar --> <dubbo.version>2.5.6</dubbo.version> <!-- zookeeper jar --> <zookeeper.version>3.4.6</zookeeper.version> <!-- zookeeper's client, so we need zkclient jar --> <zkclient.version>0.1</zkclient.version> <!-- netty jar --> <netty.version>3.2.6.Final</netty.version> </properties> <dependencies> <!-- netty start --> <dependency> <groupId>org.jboss.netty</groupId> <artifactId>netty</artifactId> <version>${netty.version}</version> </dependency> <!-- netty end --> <!-- junit start --> <dependency> <groupId>junit</groupId> <artifactId>junit</artifactId> <version>${junit.version}</version> <scope>test</scope> </dependency> <!-- junit end --> <!--spring start --> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-context</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-jdbc</artifactId> <version>${spring.version}</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-test</artifactId> <version>${spring.version}</version> <scope>test</scope> </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> <!--spring end --> <!--json start --> <dependency> <groupId>com.fasterxml.jackson.core</groupId> <artifactId>jackson-core</artifactId> <version>${jackson.version}</version> </dependency> <dependency> <groupId>com.fasterxml.jackson.core</groupId> <artifactId>jackson-databind</artifactId> <version>${jackson.version}</version> </dependency> <dependency> <groupId>com.fasterxml.jackson.core</groupId> <artifactId>jackson-annotations</artifactId> <version>${jackson.version}</version> </dependency> <dependency> <groupId>com.alibaba</groupId> <artifactId>fastjson</artifactId> <version>${fastjson.version}</version> </dependency> <!--json end --> <!-- servlet --> <dependency> <groupId>javax.servlet</groupId> <artifactId>javax.servlet-api</artifactId> <version>${servlet-api.version}</version> <scope>provided</scope> </dependency> <!-- jsp --> <dependency> <groupId>javax.servlet</groupId> <artifactId>jsp-api</artifactId> <version>${jsp-api.version}</version> <scope>provided</scope> </dependency> <!-- jstl --> <dependency> <groupId>javax.servlet</groupId> <artifactId>jstl</artifactId> <version>${jstl.version}</version> <scope>runtime</scope> </dependency> <!-- slf4j begin --> <dependency> <groupId>org.slf4j</groupId> <artifactId>slf4j-log4j12</artifactId> <version>${slf4j.version}</version> </dependency> <!-- slf4j end --> <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> <dependency> <groupId>com.alibaba</groupId> <artifactId>dubbo</artifactId> <version>${dubbo.version}</version> <exclusions> <exclusion> <!-- 排除传递spring依赖 --> <artifactId>spring</artifactId> <groupId>org.springframework</groupId> </exclusion> </exclusions> </dependency> </dependencies> <build> <finalName>demo_dubbo_consumer</finalName> </build> </project>
demo_dubbo_provider Maven Webapp:
User.java:
package com.dubbo.model; import java.io.Serializable; public class User implements Serializable { private static final long serialVersionUID = -4971294264848511301L; private Long id; private String username; private String password; private Integer age; public Long getId() { return id; } public void setId(Long id) { this.id = id; } public String getUsername() { return username; } public void setUsername(String username) { this.username = username; } public String getPassword() { return password; } public void setPassword(String password) { this.password = password; } public Integer getAge() { return age; } public void setAge(Integer age) { this.age = age; } }
UserServiceImpl.java:
package com.dubbo.service.impl; import java.util.ArrayList; import java.util.List; import com.dubbo.model.User; import com.dubbo.service.IUserService; public class UserServiceImpl implements IUserService { @Override public List<User> findAllUsers() { List<User> userList = new ArrayList<User>(); for(int i = 0; i < 10; i++) { User user = new User(); user.setId(i+1L); user.setUsername("zhangsan"+i+1); user.setPassword("123456"+i+1); user.setAge(21+i); userList.add(user); } return userList; } }
IUserService.java:
package com.dubbo.service; import java.util.List; import com.dubbo.model.User; public interface IUserService { List<User> findAllUsers(); }
applicationContext-provider.xml:
<?xml version="1.0" encoding="UTF-8"?> <beans xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:tx="http://www.springframework.org/schema/tx" xmlns:aop="http://www.springframework.org/schema/aop" xmlns:dubbo="http://code.alibabatech.com/schema/dubbo" xmlns:context="http://www.springframework.org/schema/context" xmlns="http://www.springframework.org/schema/beans" xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx.xsd http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop.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"> <!-- 生产者配置文件begin --> <!-- 给生产者项目起别名，使其标识为生产者的配置信息 --> <dubbo:application name="dubbo-b-server" /> <!-- 因为dubbo需要依赖于zookepper，所以该生产者项目需要配置zookeeper的地址信息 --> <dubbo:registry address="zookeeper://172.16.49.165:2181" /> <!-- 因为dubbo默认的端口号为20880，如果不修改就直接使用默认(记得关闭防火墙，如果不关闭防火墙，需要开发20880端口号) --> <dubbo:protocol name="dubbo" port="20880" /> <!-- 因为dubbo-provider是需要给其他项目提供数据支持，所以必须要把service接口暴露出去，供其他需要的项目调用 --> <dubbo:service interface="com.dubbo.service.IUserService" ref="userService" /> <bean id="userService" class="com.dubbo.service.impl.UserServiceImpl" /> </beans>
applicationContext.xml:
<?xml version="1.0" encoding="UTF-8"?> <beans xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:tx="http://www.springframework.org/schema/tx" xmlns:aop="http://www.springframework.org/schema/aop" xmlns:context="http://www.springframework.org/schema/context" xmlns="http://www.springframework.org/schema/beans" xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx.xsd http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd"> <!-- 扫描service --> <context:component-scan base-package="com.dubbo.service" /> <import resource="spring/applicationContext-provider.xml" /> </beans>
log4j.properties:
log4j.rootLogger=DEBUG, Console
#Console
log4j.appender.Console=org.apache.log4j.ConsoleAppender
log4j.appender.Console.layout=org.apache.log4j.PatternLayout
log4j.appender.Console.layout.ConversionPattern=%-5p - %m%n
log4j.logger.org.springframework=ERROR
log4j.logger.org.mybatis.spring=ERROR
log4j.logger.org.apache.ibatis.logging.LogFactory=ERROR
log4j.logger.com.alibaba.druid.pool.DruidDataSource=ERROR
web.xml:
<?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"> <!--Spring入口文件的配置 --> <!-- 确定配置文件位置 --> <context-param> <param-name>contextConfigLocation</param-name> <param-value>classpath:applicationContext.xml</param-value> </context-param> <!-- 配置spring 监听器，加载xml配置文件 --> <listener> <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class> </listener> <!-- 解决POST请求的中文乱码 --> <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> </web-app>
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/maven-v4_0_0.xsd"> <modelVersion>4.0.0</modelVersion> <groupId>com.dubbo</groupId> <artifactId>demo_dubbo_provider</artifactId> <packaging>war</packaging> <version>0.0.1-SNAPSHOT</version> <name>demo_dubbo_provider Maven Webapp</name> <url>http://maven.apache.org</url> <properties> <!-- junit jar --> <junit.version>4.12</junit.version> <!-- spring and springmvc jar --> <spring.version>4.3.4.RELEASE</spring.version> <!-- json jar --> <jackson.version>2.8.1</jackson.version> <fastjson.version>1.2.17</fastjson.version> <!-- servlet, jsp and jstl jar --> <servlet-api.version>3.0.1</servlet-api.version> <jsp-api.version>2.0</jsp-api.version> <jstl.version>1.2</jstl.version> <!-- slf4j jar(log4j的jar包) --> <slf4j.version>1.7.7</slf4j.version> <!-- dubbo jar --> <dubbo.version>2.5.6</dubbo.version> <!-- zookeeper jar --> <zookeeper.version>3.4.6</zookeeper.version> <!-- zookeeper's client, so we need zkclient jar --> <zkclient.version>0.1</zkclient.version> <!-- netty jar --> <netty.version>3.2.6.Final</netty.version> </properties> <dependencies> <!-- netty start --> <dependency> <groupId>org.jboss.netty</groupId> <artifactId>netty</artifactId> <version>${netty.version}</version> </dependency> <!-- netty end --> <!-- junit start --> <dependency> <groupId>junit</groupId> <artifactId>junit</artifactId> <version>${junit.version}</version> <scope>test</scope> </dependency> <!-- junit end --> <!--spring start --> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-context</artifactId> <version>${spring.version}</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-aspects</artifactId> <version>${spring.version}</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-jdbc</artifactId> <version>${spring.version}</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-test</artifactId> <version>${spring.version}</version> <scope>test</scope> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-web</artifactId> <version>${spring.version}</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-webmvc</artifactId> <version>${spring.version}</version> </dependency> <!--spring end --> <!--json start --> <dependency> <groupId>com.fasterxml.jackson.core</groupId> <artifactId>jackson-core</artifactId> <version>${jackson.version}</version> </dependency> <dependency> <groupId>com.fasterxml.jackson.core</groupId> <artifactId>jackson-databind</artifactId> <version>${jackson.version}</version> </dependency> <dependency> <groupId>com.fasterxml.jackson.core</groupId> <artifactId>jackson-annotations</artifactId> <version>${jackson.version}</version> </dependency> <dependency> <groupId>com.alibaba</groupId> <artifactId>fastjson</artifactId> <version>${fastjson.version}</version> </dependency> <!--json end --> <!-- servlet --> <dependency> <groupId>javax.servlet</groupId> <artifactId>javax.servlet-api</artifactId> <version>${servlet-api.version}</version> <scope>provided</scope> </dependency> <!-- jsp --> <dependency> <groupId>javax.servlet</groupId> <artifactId>jsp-api</artifactId> <version>${jsp-api.version}</version> <scope>provided</scope> </dependency> <!-- jstl --> <dependency> <groupId>javax.servlet</groupId> <artifactId>jstl</artifactId> <version>${jstl.version}</version> <scope>runtime</scope> </dependency> <!-- slf4j begin --> <dependency> <groupId>org.slf4j</groupId> <artifactId>slf4j-log4j12</artifactId> <version>${slf4j.version}</version> </dependency> <!-- slf4j end --> <dependency> <groupId>org.apache.zookeeper</groupId> <artifactId>zookeeper</artifactId> <version>${zookeeper.version}</version> </dependency> <dependency> <groupId>com.github.sgroschupf</groupId> <artifactId>zkclient</artifactId> <version>${zkclient.version}</version> </dependency> <dependency> <groupId>com.alibaba</groupId> <artifactId>dubbo</artifactId> <version>${dubbo.version}</version> <exclusions> <exclusion> <!-- 排除传递spring依赖 --> <artifactId>spring</artifactId> <groupId>org.springframework</groupId> </exclusion> </exclusions> </dependency> </dependencies> <build> <finalName>demo_dubbo_provider</finalName> </build> </project>
