|
Dubbox框架1. Dubbox简介 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服务质粒方案，就是个服务框架。简单说：远程服务调用的分布式框架。 file://F:/%E6%96%B0%E5%AA%92%E4%BD%93%E8%BF%90%E8%90%A5/%E9%BB%91%E9%A9%AC%E9%A1%B9%E7%9B%AE%E7%AE%A1%E7%90%86/ssm%E9%A1%B9%E7%9B%AE/%E5%93%81%E4%BC%98%E8%B4%AD%E9%A1%B9%E7%9B%AE/img/day0101.png?lastModify=1559286021 节点角色说明 Provider: 暴露服务的服务提供方。 Consumer: 调用远程服务的服务消费方。 Registry: 服务注册与发现的注册中心。 Monitor: 统计服务的调用次调和调用时间的监控中心。 Container: 服务运行容器。 调用关系说明服务容器负责启动，加载，运行服务提供者。 服务提供者在启动时，向注册中心注册自己提供的服务。 服务消费者在启动时，向注册中心订阅自己所需的服务。 注册中心返回服务提供者地址列表给消费者，如果有变更，注册中心将基于长连接推
送变更数据给消费者。 如果调用失败，再选另一台调用。 数据到监控中心。 2. 注册中心Zookeeper介绍Zookeeper 是 Apacahe Hadoop 的子项目，是一个树型的目录服务，支持变更推送，适合作为Dubbox 服务的注册中心，工业强度较高，可用于生产环境。注册中心：负责服务地址的注册与查找，相当于目录服务。 文件和通知：处理事件通知。 3. zookeeper的安装和启动jdk、解压缩zookeeper包，在zookeeper的目录下创建data文件夹 在config目录的zoo_sample.cfg改名为zoo.cfg，打开，修改data属性 服务的启动进入bin目录，输入命名./zkServer.sh start 4. 入门小demo1. server provider1. maven工程war，pom文件引入依赖<?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>com.itheima</groupId>
<artifactId>dubboxDemo-service</artifactId>
<version>1.0-SNAPSHOT</version>
<packaging>war</packaging>
<properties>
<spring.version>4.2.4.RELEASE</spring.version>
</properties>
<dependencies>
<!-- 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>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<version>3.2</version>
<configuration>
<source>1.8</source>
<target>1.8</target>
<encoding>UTF-8</encoding>
<showWarnings>true</showWarnings>
</configuration>
</plugin>
<plugin>
<groupId>org.apache.tomcat.maven</groupId>
<artifactId>tomcat7-maven-plugin</artifactId>
<configuration>
<!-- 指定端口 -->
<port>8081</port>
<!-- 请求路径 -->
<path>/</path>
</configuration>
</plugin>
</plugins>
</build>
</project>2. webapps下创建WEB-INF,web.xml
<?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>3. 创建业务接口包名：cn.itcast.dubbodemo.service，存放业务接口
public interface UserService {
String getName();
}4. 接口的实现类注意：service注解是dubbo的 package com.itheima.demo.service.impl;
import com.alibaba.dubbo.config.annotation.Service;
import com.itheima.demo.service.UserService;
@Service
public class UserServiceImpl implements UserService {
@Override
public String getName() {
return "itheima";
}
}5. 编写配置文件applicationContext-service.xml dubbo:annotation用于扫描service注解
<?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="dubboxDemo-service"/>
<dubbo:registry address="zookeeper://192.168.25.128:2181"/>
<dubbo:annotation package="com.itheima.demo.service.impl" />
</beans>2. consumer1. maven工程warpom文件同service，tomcat插件端口改为8082 2. web.xml
<?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>
<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:springmvc.xml</param-value>
</init-param>
</servlet>
<servlet-mapping>
<servlet-name>springmvc</servlet-name>
<url-pattern>*.do</url-pattern>
</servlet-mapping>
</web-app>3. 拷贝业务接口将service的包和接口都拷贝到该工程 4. 编写controller
@Controller
@RequestMapping("/user")
public class UserController {
@Reference
private UserService userService;
@RequestMapping("/showName")
@ResponseBody
public String showName(){
return userService.getName();
}
}5. 编写spring配置文件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">
<mvc:annotation-driven >
<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>
<dubbo:application name="dubboxDemo-web"/>
<dubbo:registry address="zookeeper://192.168.25.128:2181"/>
<dubbo:annotation package="com.itheima.demo.controller" />
</beans>6. 测试浏览器输入http://localhost:8082/user/showName.do 5. 管理中心的部署通过管理中心，知道注册中心注册了哪些服务，便于开发和测试 1. 安装dubbox-master.zip，用maven命令编译源码得到war包 mvn package -Dmaven.skip.test=true target文件夹的dubbo-admin-2.8.4.war，可将版本号去掉。 Linux安装tomcat，将war包传到服务器的tomcat下的webapps目录。 启动tomcat：bin目录下./startup.sh 浏览器输入192.168.25.128:8080/dubbo-admin，用户名密码均为root 6. 逆向工程生成表对应的pojo和dao，增删改查 注意mapper的xml生成到resources下边，java文件生成到src下边
| 
收藏
淘帖
踩
