Dubbo简介与使用
1：Dubbo是什么
阿里生产的一种rpc 实现框架
Dubbo 是一个分布式服务框架，是阿里巴巴开源项目 ，被国内电商及互联网项目中使用。
Dubbo 致力于提供高性能和透明化的RPC远程服务调用方案，以及SOA服务治理方案。简单的说，Dubbo就是个服务框架，如果没有分布式的需求，其实是不需要用的，只有在分布式的时候，才有Dubbo这样的分布式服务框架的需求，并且本质上是个服务调用的东东，说白了就是个远程服务调用的分布式框架。
2：Dubbo作用
跨项目之间调用方法
3：Dubbo的使用
1 service实现类上写@Service注解 注意的是这个注解是dubbo的
2 controller 注入的使用@Refrence 进行注入 注意的是这个注解是dubbo的
3 假如service 和controller 之间传递实体类 那么这个实体类必须 实现序列化接口
项目架构
dubbo_service下的pom.xml依赖
<?xml version="1.0" encoding="UTF-8"?>
<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>cn.wangju</groupId>
<artifactId>dubbo_service</artifactId>
<version>1.0-SNAPSHOT</version>
<packaging>war</packaging> <name>dubbo_service Maven Webapp</name> <properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<maven.compiler.source>1.7</maven.compiler.source>
<maven.compiler.target>1.7</maven.compiler.target>
<spring.version>4.2.4.RELEASE</spring.version>
</properties> <dependencies>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>4.11</version>
<scope>test</scope>
</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>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-jms</artifactId>
<version>${spring.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>2.8.4</version>
</dependency>
<dependency>
<groupId>org.apache.zookeeper</groupId>
<artifactId>zookeeper</artifactId>
<version>3.4.6</version>
</dependency>
<dependency>
<groupId>com.github.sgroschupf</groupId>
<artifactId>zkclient</artifactId>
<version>0.1</version>
</dependency>
<dependency>
<groupId>javassist</groupId>
<artifactId>javassist</artifactId>
<version>3.11.0.GA</version>
</dependency>
</dependencies> <build>
<finalName>dubbo_service</finalName>
<pluginManagement><!-- lock down plugins versions to avoid using Maven defaults (may be moved to parent pom) -->
<plugins>
<plugin>
<artifactId>maven-clean-plugin</artifactId>
<version>3.1.0</version>
</plugin>
<!-- see http://maven.apache.org/ref/current/maven-core/default-bindings.html#Plugin_bindings_for_war_packaging -->
<plugin>
<artifactId>maven-resources-plugin</artifactId>
<version>3.0.2</version>
</plugin>
<plugin>
<artifactId>maven-compiler-plugin</artifactId>
<version>3.8.0</version>
</plugin>
<plugin>
<artifactId>maven-surefire-plugin</artifactId>
<version>2.22.1</version>
</plugin>
<plugin>
<artifactId>maven-war-plugin</artifactId>
<version>3.2.2</version>
</plugin>
<plugin>
<artifactId>maven-install-plugin</artifactId>
<version>2.5.2</version>
</plugin>
<plugin>
<artifactId>maven-deploy-plugin</artifactId>
<version>2.8.2</version>
</plugin>
</plugins>
</pluginManagement>
<plugins>
<!-- tomcat插件 -->
<plugin>
<groupId>org.apache.tomcat.maven</groupId>
<artifactId>tomcat7-maven-plugin</artifactId>
<version>2.2</version>
<configuration>
<port>1088</port>
<path>/SSM</path>
<httpPort>8007</httpPort>
<uriEncoding>UTF-8</uriEncoding>
<server>tomcat7</server>
</configuration>
</plugin>
</plugins>
</build>
</project>
dubbo_service下的配置文件applicationContext_service.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:p="http://www.springframework.org/schema/p"
xmlns:context="http://www.springframework.org/schema/context"
xmlns:dubbo="http://code.alibabatech.com/schema/dubbo" xmlns:mvc="http://www.springframework.org/schema/mvc"
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://code.alibabatech.com/schema/dubbo http://code.alibabatech.com/schema/dubbo/dubbo.xsd
http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd">
<dubbo:application name="dubbodemo-service"/>
<!--配置连接的端口号-->
<dubbo:registry address="zookeeper://192.168.200.128:2181"/>
<dubbo:annotation package="cn.wangju.service" />
</beans>
dubbo_service下的web.xml文件
<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns="http://java.sun.com/xml/ns/javaee"
xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd"
version="2.5">
<!-- 加载spring容器 -->
<context-param>
<param-name>contextConfigLocation</param-name>
<param-value>classpath:applicationContext*.xml</param-value>
</context-param>
<listener>
<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
</listener>
</web-app>
dubbo_service下的service接口和实现类
service接口
package cn.wangju.service; public interface TestService {
String testMethod();
} 实现类
package cn.wangju.service;
import com.alibaba.dubbo.config.annotation.Service; @Service
public class TestServiceImpl implements TestService{
@Override
public String testMethod() {
return "hello world";
}
}
dubbo_controller下的pom.xml配置文件
<?xml version="1.0" encoding="UTF-8"?>
<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>cn.wangju</groupId>
<artifactId>dubbo_controller</artifactId>
<version>1.0-SNAPSHOT</version>
<packaging>war</packaging> <name>dubbo_controller Maven Webapp</name> <properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<maven.compiler.source>1.7</maven.compiler.source>
<maven.compiler.target>1.7</maven.compiler.target>
<spring.version>4.2.4.RELEASE</spring.version>
</properties> <dependencies>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>4.11</version>
<scope>test</scope>
</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-jms</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-context-support</artifactId>
<version>${spring.version}</version>
</dependency>
<!-- dubbo相关 -->
<dependency>
<groupId>com.alibaba</groupId>
<artifactId>dubbo</artifactId>
<version>2.8.4</version>
</dependency>
<dependency>
<groupId>org.apache.zookeeper</groupId>
<artifactId>zookeeper</artifactId>
<version>3.4.6</version>
</dependency>
<dependency>
<groupId>com.github.sgroschupf</groupId>
<artifactId>zkclient</artifactId>
<version>0.1</version>
</dependency>
<dependency>
<groupId>javassist</groupId>
<artifactId>javassist</artifactId>
<version>3.11.0.GA</version>
</dependency>
</dependencies> <build>
<finalName>dubbo_controller</finalName>
<pluginManagement><!-- lock down plugins versions to avoid using Maven defaults (may be moved to parent pom) -->
<plugins>
<plugin>
<artifactId>maven-clean-plugin</artifactId>
<version>3.1.0</version>
</plugin>
<!-- see http://maven.apache.org/ref/current/maven-core/default-bindings.html#Plugin_bindings_for_war_packaging -->
<plugin>
<artifactId>maven-resources-plugin</artifactId>
<version>3.0.2</version>
</plugin>
<plugin>
<artifactId>maven-compiler-plugin</artifactId>
<version>3.8.0</version>
</plugin>
<plugin>
<artifactId>maven-surefire-plugin</artifactId>
<version>2.22.1</version>
</plugin>
<plugin>
<artifactId>maven-war-plugin</artifactId>
<version>3.2.2</version>
</plugin>
<plugin>
<artifactId>maven-install-plugin</artifactId>
<version>2.5.2</version>
</plugin>
<plugin>
<artifactId>maven-deploy-plugin</artifactId>
<version>2.8.2</version>
</plugin> </plugins>
</pluginManagement>
<plugins>
<!-- tomcat插件 -->
<plugin>
<groupId>org.apache.tomcat.maven</groupId>
<artifactId>tomcat7-maven-plugin</artifactId>
<version>2.2</version>
<configuration>
<port>1089</port>
<path>/SSM</path>
<httpPort>8006</httpPort>
<uriEncoding>UTF-8</uriEncoding>
<server>tomcat7</server>
</configuration>
</plugin>
</plugins>
</build>
</project>
dubbo_controller下的applicationContext-web.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:p="http://www.springframework.org/schema/p"
xmlns:context="http://www.springframework.org/schema/context"
xmlns:dubbo="http://code.alibabatech.com/schema/dubbo" xmlns:mvc="http://www.springframework.org/schema/mvc"
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://code.alibabatech.com/schema/dubbo http://code.alibabatech.com/schema/dubbo/dubbo.xsd
http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd"> <!-- 注解驱动 -->
<mvc:annotation-driven >
<!-- 将传输的字符串强制转换成utf-8编码, 防止中文乱码 -->
<mvc:message-converters register-defaults="false">
<bean class="org.springframework.http.converter.StringHttpMessageConverter">
<constructor-arg value="UTF-8" />
</bean>
</mvc:message-converters>
</mvc:annotation-driven> <!-- 给当前项目服务起个名-->
<dubbo:application name="dubboxdemo-web" />
<!-- 配置连接zookepper -->
<dubbo:registry address="zookeeper://192.168.200.128:2181"/>
<!-- 配置包扫描, 只有在这个包下面才可以注入service -->
<dubbo:annotation package="cn.wangju.controller" />
</beans>
dubbo_controller下的web.xml文件
<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns="http://java.sun.com/xml/ns/javaee"
xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd"
version="2.5">
<!-- 解决post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>
<init-param>
<param-name>forceEncoding</param-name>
<param-value>true</param-value>
</init-param>
</filter>
<filter-mapping>
<filter-name>CharacterEncodingFilter</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping> <!-- 配置springMvc前端控制器 -->
<servlet>
<servlet-name>springmvc</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<!-- 指定加载的配置文件 ，通过参数contextConfigLocation加载-->
<init-param>
<param-name>contextConfigLocation</param-name>
<param-value>classpath:applicationContext-web.xml</param-value>
</init-param>
</servlet>
<servlet-mapping>
<servlet-name>springmvc</servlet-name>
<url-pattern>*.do</url-pattern>
</servlet-mapping> </web-app>
dubbo_controller下的Controller
package cn.wangju.controller;
import cn.wangju.service.TestService;
import com.alibaba.dubbo.config.annotation.Reference;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.ResponseBody; @Controller
@RequestMapping("/test")
public class TestController {
@Reference
private TestService testService;
@RequestMapping("/du")
@ResponseBody
public String testMethod(){
return testService.testMethod();
}
}
dubbo_service下的Service
package cn.wangju.service;
public interface TestService {
String testMethod();
}
先启动service的tomcat在启动controller下的tomcat
Dubbo简介与使用的更多相关文章
- dubbo入门学习 三 dubbo简介
http://dubbo.apache.org/zh-cn/docs/user/references/protocol/dubbo.html Dubbo简介 1. Dubbo:一个分布式.高性能.透明 ...
- Dubbo简介与基本概念
场景 分布式系统的发展演变以及RPC简介: https://blog.csdn.net/BADAO_LIUMANG_QIZHI/article/details/103555049 Dubbo简介 Ap ...
- Dubbo简介---搭建一个最简单的Demo框架
Dubbo背景和简介 Dubbo开始于电商系统,因此在这里先从电商系统的演变讲起. 单一应用框架(ORM) 当网站流量很小时,只需一个应用,将所有功能如下单支付等都部署在一起,以减少部署节点和成本. ...
- （一）Dubbo简介
Dubbo是阿里巴巴公司开源的一个高性能优秀的服务框架,使得应用可通过高性能的 RPC 实现服务的输出和输入功能,可以和Spring框架无缝集成.具体可以看 百度百科 https://baike.ba ...
- Dubbo简介2
Dubbo是阿里巴巴公司开源的一个高性能优秀的服务框架,使得应用可通过高性能的 RPC 实现服务的输出和输入功能,可以和Spring框架无缝集成.具体可以看 百度百科 https://baike.ba ...
- 2、Spring Cloud和dubbo简介
1.Spring Cloud简介 (1).Spring Cloud简介 SpringCloud,基于SpringBoot提供了一套微服务解决方案,包括服务注册与发现,配置中心,全链路监控,服务网关,负 ...
- dubbo源码—dubbo简介
dubbo是一个RPC框架,应用方像使用本地service一样使用dubbo service.dubbo体系架构 上图中的角色: 最重要的是consumer.registry和provider con ...
- Dubbo简介
1. Dubbo是什么? Dubbo是一个分布式服务框架,致力于提供高性能和透明化的RPC远程服务调用方案,以及SOA服务治理方案.简单的说,dubbo就是个服务框架,如果没有分布式的需求,其实是不需 ...
- Dubbo简介及实例
节点角色说明: Ø Provider: 暴露服务的服务提供方. Ø Consumer: 调用远程服务的服务消费方. Ø Registry: 服务注册与发现的注册中心. Ø Monitor: 统 ...
随机推荐
- ASP.NET MVC EF 连接数据库（三）-----Code First
Code first (VS2015 ,Sql Server2014) 新建MVC项目 实例: 在数据库中会有个新建的数据库和表 源码地址:https://note.youdao.com/ynotes ...
- 用T4生成EF框架下的DAL、IDAL、BLL、IBLL
(一)什么是T4模板? T4,即4个T开头的英文字母组合:Text Template Transformation Toolkit. T4文本模板,即一种自定义规则的代码生成器.根据业务模型可生成任何 ...
- 纯C语言实现链队
#include <stdio.h> #include <stdlib.h> typedef int QElemType; typedef struct QNode{ QEle ...
- nodejs-翻转算法
nodejs-翻转算法 /** * Created by moon on 2019/12/14. */ //程序运行完成时一定要有输出语句,本工具才能正确展示运行结果. function abc() ...
- wpf 打开win8系统软件盘
三个函数 一) /// <summary> /// 判断进程是否正在运行 /// </summary> /// <param name="process&quo ...
- Android 自定义水平进度条的圆角进度
有时项目中需要实现水平圆角进度,如下两种,其实很简单 下面开始看代码,先从主界面布局开始看起: <?xml version="1.0" encoding=" ...
- Java11新特性解读
在去年的9月26日,Oracle官方宣布Java11正式发布,这是Java大版本周期变化后的第一个长期支持版本,非常值得关注.Java9和Java10都在很短的时间内就过渡了,所以,Java11将是一 ...
- pip安装模块使用国内镜像源加速安装
今天在安装Python模块matplotlib的时候,一直安装不成功,老是提示“socket.timeout: The read operation timed out”或者“Read timed o ...
- (九)OpenStack---M版---双节点搭建---Swift(单节点)安装和配置
↓↓↓↓↓↓↓↓视频已上线B站↓↓↓↓↓↓↓↓ >>>>>>传送门 本次搭建仅采用Compute单节点做swift组件 1.Controller安装并配置控制节点 ...
- constant timer(固定定时器),constant throughput timer(常数吞吐量定时器);多个请求，某个请求a下，设置常数吞吐量定时器，模式：all active threads(shared)则所有请求吞吐量一致；
1.两请求之间添加'固定定时器' 1000ms,那么两请求发送间隔时间是多少? 1000ms吗? 由实验得出,2个请求发送间隔时间 = 1000ms + 第一个请求时间(发出至完成后时间) 2.单个请 ...