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>
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