Dubbo

Dubbo

一、 概念

1 Dubbo 介绍


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。Dubbo 框架,是基于容器
运行的.。容器是 Spring。
官方网站 : http://dubbo.apache.org/
阿里巴巴已经将 dubbo 框架捐献给了 Apache 软件基金会

 dubbo的详细说明:https://blog.csdn.net/weixin_41485592/article/details/81952499

                                 https://blog.csdn.net/houshaolin/article/details/76408399

 

dubbo 阿里开源的一个SOA服务治理框架,从目前来看把它称作是一个RCP远程调用框架更为贴切。

单从RPC框架来说,功能较完善,支持多种传输和序列化方案。

所以想必大家已经知道他的核心功能了:就是远程调用。

 

2 单体架构


单体架构也称之为单体系统或者是单体应用。就是一种把系统中所有的功能、模块耦合
在一个应用中的架构方式。其优点为:项目易于管理、部署简单。缺点:测试成本高、可伸
缩性差、可靠性差、迭代困难、跨语言程度差、团队协作难

3 SOA 架构: Service-Oriented Architecture


面向服务的架构(SOA)是一个组件模型,它将应用程序拆分成不同功能单元(称为服
务)通过这些服务之间定义良好的接口和契约联系起来。接口是采用中立的方式进行定义的,
它应该独立于实现服务的硬件平台、操作系统和编程语言。这使得构建在各种各样的系统中
的服务可以以一种统一和通用的方式进行交互。

4 RPC 远程过程调用 : Remote Procedure Call Protocol


远程过程调用协议,它是一种通过网络从远程计算机程序上请求服务,而不需要了解底
层网络技术的协议。RPC 协议假定某些传输协议的存在,如 TCP 或 UDP,为通信程序之间
携带信息数据。在 OSI 网络通信模型中,RPC 跨越了传输层和应用层。RPC 使得开发包括
网络分布式多程序在内的应用程序更加容易。

二、 Dubbo 框架结构

1 Dubbo 角色介绍

1.1registry


注册中心. 是用于发布和订阅服务的一个平台.用于替代 SOA 结构体系框架中的 ESB 服
务总线的。

1.1.1发布


开发服务端代码完毕后, 将服务信息发布出去. 实现一个服务的公开.
1.1.2订阅
客户端程序,从注册中心下载服务内容 这个过程是订阅.
订阅服务的时候, 会将发布的服务所有信息,一次性下载到客户端.
客户端也可以自定义, 修改部分服务配置信息. 如: 超时的时长, 调用的重试次数等.

1.2consumer


服务的消费者, 就是服务的客户端.
消费者必须使用 Dubbo 技术开发部分代码. 基本上都是配置文件定义.

1.3provider


服务的提供者, 就是服务端.
服务端必须使用 Dubbo 技术开发部分代码. 以配置文件为主

 

1.4container


容器. Dubbo 技术的服务端(Provider), 在启动执行的时候, 必须依赖容器才能正常启动.
默认依赖的就是 spring 容器. 且 Dubbo 技术不能脱离 spring 框架.
在 2.5.3 版本的 dubbo 中, 默认依赖的是 spring2.5 版本技术. 可以选用 spring4.5 以下版
本.
在 2.5.7 版本的 dubbo 中, 默认依赖的是 spring4.3.10 版本技术. 可以选择任意的 spring
版本.

1.5monitor


监控中心. 是 Dubbo 提供的一个 jar 工程.
主要功能是监控服务端(Provider)和消费端(Consumer)的使用数据的. 如: 服务端是什么,
有多少接口,多少方法, 调用次数, 压力信息等. 客户端有多少, 调用过哪些服务端, 调用了
多少次等.

2 Dubbo 架构图的执行流程

2.1Dubbo 执行流程


0 start: 启动 Spring 容器时,自动启动 Dubbo 的 Provider


1 register: Dubbo 的 Provider 在启动后自动会去注册中心注册内容.注册的内容包括:

1.1 Provider 的 IP
1.2 Provider 的端口.
1.3 Provider 对外提供的接口列表.哪些方法.哪些接口类
1.4 Dubbo 的版本.
1.5 访问 Provider 的协议

2 subscribe: 订阅.当 Consumer 启动时,自动去 Registry 获取到所已注册的服务的信息.
3 notify: 通知.当 Provider 的信息发生变化时, 自动由 Registry 向 Consumer 推送通知.
4 invoke: 调用. Consumer 调用 Provider 中方法
4.1 同步请求.消耗一定性能.但是必须是同步请求,因为需要接收调用方法后的结
果.
5 count:次数. 每隔 2 分钟,provoider 和 consumer 自动向 Monitor 发送访问次数.Monitor
进行统计.

3 Dubbo 支持的协议

 

3.1Dubbo 协议(官方推荐协议)


优点:
采用 NIO 复用单一长连接,并使用线程池并发处理请求,减少握手和加大并发效率,
性能较好(推荐使用)
缺点:
大文件上传时,可能出现问题(不使用 Dubbo 文件上传)

3.2RMI(Remote Method Invocation)协议


1) 优点:
JDK 自带的能力。可与原生 RMI 互操作,基于 TCP 协议
2) 缺点:
偶尔连接失败.

3.3Hessian 协议


1) 优点:


可与原生 Hessian 互操作,基于 HTTP 协议


2) 缺点:


需 hessian.jar 支持,http 短连接的开销大

4 Dubbo 支持的注册中心

4.1Zookeeper(官方推荐)


1) 优点:
支持分布式.很多周边产品.
2) 缺点:
受限于 Zookeeper 软件的稳定性.Zookeeper 专门分布式辅助软件,稳定较优

4.2Multicast


1) 优点:

去中心化,不需要单独安装软件.


2) 缺点:
2.2.1 Provider 和 Consumer 和 Registry 不能跨机房(路由)

4.3Redis


1) 优点:
支持集群,性能高
2) 缺点:
要求服务器时间同步.否则可能出现集群失败问题.

4.4Simple


1) 优点:
标准 RPC 服务.没有兼容问题
2) 缺点:
不支持集群

 

三、 Dubbo 入门案例

1 安装 Zookeeper


请看 zookeeper 视频

2 创建 Provider

2.1创建工程


Provider 工程类型是 jar 类型

2.2修改 POM 文件添加 Dubbo 的坐标


2.2.1关于版本的问题。在 Dubbo 的 2.5.3 版本中对于 spring
的支持是 2.5.x。替换低版本的 spring。

<project
xmlns="http://maven.apache.org/POM/4.0.0"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instan
ce"
xsi:schemaLocation="http://maven.apache.org/P
OM/4.0.0 
http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>com.bjsxt</groupId>
<artifactId>01-dubbo-provier-demo</artifactId
>
<version>0.0.1-SNAPSHOT</version>
<dependencies>
<!--
https://mvnrepository.com/artifact/com.alibaba/dub
bo -->
<dependency>
<groupId>com.alibaba</groupId>
<artifactId>dubbo</artifactId>
<version>2.5.3</version>
<!-- 去除依赖 -->
<exclusions>
<exclusion>
<groupId>org.springframework</groupId>
<artifactId>spring</artifactId>
</exclusion>
</exclusions>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-context</artifactId>
<version>4.1.6.RELEASE</version>
</dependency>
</dependencies>
</project>
View Code

 

2.2.2Dubbo 的 2.5.4 版本中对于 spring 的支持为 4.3.10

<project
xmlns="http://maven.apache.org/POM/4.0.0"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instan
ce"
xsi:schemaLocation="http://maven.apache.org/P
OM/4.0.0 
http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>com.bjsxt</groupId>
<artifactId>01-dubbo-provier-demo</artifactId
>
<version>0.0.1-SNAPSHOT</version>
<dependencies>
<!--
https://mvnrepository.com/artifact/com.alibaba/dub
bo -->
<dependency>
<groupId>com.alibaba</groupId>
<artifactId>dubbo</artifactId>
<version>2.5.4</version>
</dependency>
</dependencies>
</project>
View Code

 

2.3创建服务


服务:项目中对外界所提供的能力
服务标准:接口+接口实现类
接口:对外界描述当前服务的信息,如协议类型,服务提供者的地址,发布的服务名
称,服务中方法名称等信息。
接口实现类:对发布的接口中的标准的具体实现。

 

2.3.1创建接口

/* 服务接口*

@author Administrator**/

public interface DubboService

{

String showMsg(String str);

}

2.3.2创建接口实现类

/**
* 服务接口实现类
* @author Administrator
*
*/
public class DubboServiceImpl implements
DubboService {
@Override
public String showMsg(String str) {
return "Hello Dubbo "+str;
}
}
View Code

2.3.3配置服务

<?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:aop="http://www.springframework.org/schema/aop"
 
xmlns:context="http://www.springframework.org/schema/context"
 xmlns:tx="http://www.springframework.org/schema/tx"
 xmlns:dubbo="http://code.alibabatech.com/schema/dubbo"
 
xsi:schemaLocation="http://www.springframework.org/schema/bean
s
 
http://www.springframework.org/schema/beans/spring-beans.xsd
 http://www.springframework.org/schema/aop
 
http://www.springframework.org/schema/aop/spring-aop.xsd
 http://www.springframework.org/schema/tx
 
http://www.springframework.org/schema/tx/spring-tx.xsd
 http://www.springframework.org/schema/context
 
http://www.springframework.org/schema/context/spring-context.x
sd
 http://code.alibabatech.com/schema/dubbo
 
http://code.alibabatech.com/schema/dubbo/dubbo.xsd">
 
 <!-- 给应用起名 -->
<dubbo:application name="myprovider"/>
<!-- 配置注册中心 -->
<!-- address: 注册中心的 IP 和端口,注意:如果 zookeeper 是一个
集群,哪些要将集群中所有的 IP 和端口添加该属性中-->
<!-- protocol: 注册中心的类型-->
<dubbo:registry
address="192.168.70.143:2181,192.168.70.143:2182,192.168.70.14
3:2183" protocol="zookeeper"></dubbo:registry>
<!-- 配置协议与端口 -->
<dubbo:protocol name="dubbo"
port="20880"></dubbo:protocol>
<!-- 配置注册接口 -->
<dubbo:service interface="com.bjsxt.service.DubboService"
ref="dubboServiceImpl"></dubbo:service>
<bean id="dubboServiceImpl"
class="com.bjsxt.service.impl.DubboServiceImpl"></bean>
</beans>
View Code

 

2.4启动 Provider

2.4.1启动 Zookeeper 注册中心

 

2.4.2启动 Spring 容器

2.4.2.1 通过 SpringAPI 启动容器


在 ApplicationContext 接口中未定义 start()方法,需要时用接口实现类

2.4.2.2 启动时异常信息


JDK 版本不符合要求。注意 dubbo2.5.4 要求 jdk 必须是 1.8 或者以上的版本

2.4.2.3 工具名称为:zkclient


修改 POM 文件添加 zkclient 坐标

<!-- https://mvnrepository.com/artifact/com.101tec/zkclient -->
<dependency>
<groupId>com.101tec</groupId>
<artifactId>zkclient</artifactId>
<version>0.10</version>
</dependency>

 

2.4.2.4 启动代码

public class Start {
public static void main(String[] args) throws
Exception {
ClassPathXmlApplicationContext ac = new
ClassPathXmlApplicationContext("application-dubbo.
xml");
ac.start();
System.in.read();
}
}

2.4.2.5 使用 DubboAPI 启动 Provider

public class Start {
public static void main(String[] args) throws
Exception {
/*ClassPathXmlApplicationContext ac = new 
ClassPathXmlApplicationContext("application-dubbo.
xml");
ac.start();
System.in.read();*/
//Main 类下的 main 方法在启动时默认的回去
classpath:/META-INF/spring/*.xml
Main.main(args);
}
}

特点:
1,自带线程阻塞
2,支持优雅关系

2.5注册中心中的服务发布信息


使用 zkCli.sh 连接 ZooKeeper 服务,使用 ls 命令查看服务信息。
ls /dubbo/服务接口名称/providers
显示结果如下:

dubbo%3A%2F%2F192.168.2.108%3A20880%2Fcom.bjsxt.service.DubboService%3Fanyh
ost%3Dtrue%26application%3Dmyprovider%26dubbo%3D2.5.4%26generic%3Dfalse%26interfa
ce%3Dcom.bjsxt.service.DubboService%26methods%3DshowMsg%26pid%3D3936%26side%3
Dprovider%26timestamp%3D1536807891514

转换结果如下:

dubbo://192.168.2.108:20880/com.bjsxt.service.DubboService?anyhost=true&application=m
yprovider&dubbo=2.5.4&generic=false&interface=com.bjsxt.service.DubboService&methods=sh
owMsg&pid=3936&side=provider×tamp=1536807891514

 

3 Dubbo Admin 管理平台搭建

从github上下载dubbo admin

3.1安装 Admin 管理平台


Admin 管理平台是一个 war 项目
在 Linux 系统中安装 JDK 以及 tomcat。
使用 unzip 命令解压 zip 压缩包。
删除 tomcat/webapps 目录下的 ROOT 目录
将解压出来的 ROOT 目录拷贝到 tomcat/webapps 目录下

3.2配置 Admin 管理平台

进入

/usr/local/tomcat/webapps/ROOT/WEB-INF找到dubbo.properties配置如下。

Address:zookeeper 的链接地址。如果是集群给一个就可以了
Root.password 设置默认 root 用户的密码
Guest.password 设置默认 guest 用户的密码

 

3.3访问 Admin 管理平台

4 创建 Consumer

4.1创建工程

4.2修改 POM 文件

<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.bjsxt</groupId>
 <artifactId>02-dubbo-consumer</artifactId>
 <version>0.0.1-SNAPSHOT</version>
 
 <dependencies>
<!--
https://mvnrepository.com/artifact/com.alibaba/dubbo -->
<dependency>
<groupId>com.alibaba</groupId>
<artifactId>dubbo</artifactId>
<version>2.5.4</version>
</dependency>
<!--
https://mvnrepository.com/artifact/com.101tec/zkclient -->
<dependency>
<groupId>com.101tec</groupId>
<artifactId>zkclient</artifactId>
<version>0.10</version>
</dependency>
</dependencies>
</project>
View Code

4.3编写 Consumer

4.3.1接口

public interface UserService {
void test(String str);
}

4.3.2接口实现类

@Service
public class UserServiceImpl implements
UserService {
@Autowired
private DubboService dubboService;
@Override
public void test(String str) {
//调用 Provider 下的服务
System.out.println(this.dubboService);
String var = this.dubboService.showMsg(" 
bjsxt ");
System.out.println(var);
}
}
View Code

4.4配置 Consumer

<?xml version="1.0" encoding="UTF-8"?>
<beans
xmlns="http://www.springframework.org/schema/be
ans"
 
xmlns:xsi="http://www.w3.org/2001/XMLSchema-ins
tance"
 
xmlns:aop="http://www.springframework.org/schem
a/aop"
 
xmlns:context="http://www.springframework.org/s
chema/context"
 
xmlns:tx="http://www.springframework.org/schema
/tx"
 
xmlns:dubbo="http://code.alibabatech.com/schema
/dubbo"
 
xsi:schemaLocation="http://www.springframework.
org/schema/beans
 
http://www.springframework.org/schema/beans/spr
ing-beans.xsd
 
http://www.springframework.org/schema/aop
 
http://www.springframework.org/schema/aop/sprin
g-aop.xsd
 
http://www.springframework.org/schema/tx
 
http://www.springframework.org/schema/tx/spring
-tx.xsd
 
http://www.springframework.org/schema/context
 
http://www.springframework.org/schema/context/s
pring-context.xsd
 
http://code.alibabatech.com/schema/dubbo
 
http://code.alibabatech.com/schema/dubbo/dubbo.
xsd">
 <context:component-scan
base-package="com.bjsxt.service"/>
<dubbo:application name="myconsumer"/>
<dubbo:registry
address="192.168.70.143:2181,192.168.70.143:218
2,192.168.70.143:2183"
protocol="zookeeper"></dubbo:registry>
<!-- 获取接口 -->
<!-- 获取到接口的代理对象,生成接口的 Proxy,
放入到 spring 容器中 -->
<dubbo:reference id="dubboService"
interface="com.bjsxt.service.DubboService"></du
bbo:reference> 
</beans>
View Code

4.5测试 Consumer

4.5.1测试结果

四、 Dubbo 实战案例

1 案例介绍

1.1需求:完成对用户表的 CRUD 操作

1.2项目架构方式:SOA 面向服务架构

1.3技术选型:Maven,SpringMVC,Spring,Mybatis,Dubbo,
Zookeeper,MySQL

2 创建表

CREATE TABLE `users` (
`userid` int(11) NOT NULL AUTO_INCREMENT,
`username` varchar(30) DEFAULT NULL,
`userage` int(11) DEFAULT NULL,
PRIMARY KEY (`userid`)
) ENGINE=InnoDB AUTO_INCREMENT=4 DEFAULT CHARSET=utf8;

 

3 项目设计

4 创建项目

4.1创建 dubbo-parent

4.1.1创建项目

 

4.1.2修改 POM 文件

<project
xmlns="http://maven.apache.org/POM/4.0.0"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instan
ce"
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.bjsxt</groupId>
 <artifactId>dubbo-parent</artifactId>
 <version>0.0.1-SNAPSHOT</version>
 <packaging>pom</packaging>
 
 <!-- 对依赖的 jar 包的版本统一进行定义 -->
 <properties>
 <junit.version>4.12</junit.version>
<spring.version>4.1.3.RELEASE</spring.version>
<mybatis.version>3.2.8</mybatis.version>
<mybatis.spring.version>1.2.2</mybatis.spring.v
ersion>
<mysql.version>5.1.32</mysql.version>
<slf4j.version>1.6.4</slf4j.version>
<druid.version>1.0.9</druid.version>
<jstl.version>1.2</jstl.version>
<servlet-api.version>2.5</servlet-api.version>
<tomcat.version>2.2</tomcat.version>
<jsp-api.version>2.0</jsp-api.version>
<zkClient-version>0.10</zkClient-version>
<dubbo-version>2.5.4</dubbo-version>
 </properties>
 
 
 <!-- jar 包的依赖注入 ,由于该工程是一个父工程,
所以 jar 包在该 pom 文件中只是声明-->
 <dependencyManagement>
 <dependencies>
<!-- 单元测试 -->
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>${junit.version}</version>
</dependency>
<!-- 日志处理 -->
<dependency>
<groupId>org.slf4j</groupId>
<artifactId>slf4j-log4j12</artifactId>
<version>${slf4j.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>
<!-- MySql -->
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<version>${mysql.version}</version>
</dependency>
<!-- 连接池 -->
<dependency>
<groupId>com.alibaba</groupId>
<artifactId>druid</artifactId>
<version>${druid.version}</version>
</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>${spring.version}</version>
</dependency>
<!-- JSP 相关 -->
<dependency>
<groupId>jstl</groupId>
<artifactId>jstl</artifactId>
<version>${jstl.version}</version>
</dependency>
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>servlet-api</artifactId>
<version>${servlet-api.version}</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>jsp-api</artifactId>
<version>${jsp-api.version}</version>
<scope>provided</scope>
</dependency>
<!-- dubbo -->
<dependency>
<groupId>com.alibaba</groupId>
<artifactId>dubbo</artifactId>
<version>${dubbo-version}</version>
</dependency>
<dependency>
<groupId>com.101tec</groupId>
<artifactId>zkclient</artifactId>
<version>${zkClient-version}</version>
</dependency>
</dependencies>
 </dependencyManagement>
<build>
<resources>
<resource>
<directory>src/main/java</directory>
<includes>
<include>**/*.xml</include>
</includes>
</resource>
<resource>
<directory>src/main/resources</directory>
<includes>
<include>**/*.xml</include>
<include>**/*.properties</include>
</includes>
</resource>
</resources>
<!-- tomcat 插件,由于子项目不一定每个都是 web
项目,所以该插件只是声明,并未开启 -->
 <pluginManagement>
 <plugins>
<!-- 配置 Tomcat 插件 -->
<plugin>
<groupId>org.apache.tomcat.maven</groupId>
<artifactId>tomcat7-maven-plugin</artifactId>
<version>${tomcat.version}</version>
</plugin>
</plugins>
 </pluginManagement>
</build>
</project>
View Code

 

4.2创建 dubbo-pojo

4.2.1创建项目

 

 4.2.2创建 Users 实体

package com.bjsxt.pojo;
public class Users {
private int userid;
private String username;
private int userage;
public int getUserid() {
return userid;
}
public void setUserid(int userid) {
this.userid = userid;
}
public String getUsername() {
return username;
}
public void setUsername(String username) {
this.username = username;
}
public int getUserage() {
return userage;
}
public void setUserage(int userage) {
this.userage = userage;
}
}
View Code

4.3dubbo-mapper


4.3.1创建项目

4.3.2创建 UsersMapper 接口

package com.bjsxt.mapper;
public interface UsersMapper {
}

 

4.3.3创建 UsersMapper 映射配置文件

<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD 
Mapper 3.0//EN"
"http://mybatis.org/dtd/mybatis-3-mapper.dtd" >
<mapper
namespace="com.bjsxt.mapper.UserMapper" >
</mapper>

4.3.4修改 POM 文件

project
xmlns="http://maven.apache.org/POM/4.0.0"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instan
ce"
xsi:schemaLocation="http://maven.apache.org/P
OM/4.0.0 
http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<parent>
<groupId>com.bjsxt</groupId>
<artifactId>dubbo-parent</artifactId>
<version>0.0.1-SNAPSHOT</version>
</parent>
<groupId>com.bjsxt</groupId>
<artifactId>dubbo-mapper</artifactId>
<version>0.0.1-SNAPSHOT</version>
<dependencies>
<dependency>
<groupId>com.bjsxt</groupId>
<artifactId>dubbo-pojo</artifactId>
<version>0.0.1-SNAPSHOT</version>
</dependency>
<!-- Mybatis -->
<dependency>
<groupId>org.mybatis</groupId>
<artifactId>mybatis</artifactId>
</dependency>
<dependency>
<groupId>org.mybatis</groupId>
<artifactId>mybatis-spring</artifactId>
</dependency>
<!-- MySql -->
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
</dependency>
<!-- 连接池 -->
<dependency>
<groupId>com.alibaba</groupId>
<artifactId>druid</artifactId>
</dependency>
</dependencies>
<build>
<resources>
<resource>
<directory>src/main/java</directory>
<includes>
<include>**/*.xml</include>
</includes>
</resource>
</resources>
</build>
</project>
View Code

4.4创建 dubbo-user-provider

4.4.1创建项目

4.5创建 dubbo-user-interface

4.5.1创建项目

4.5.2修改 POM 文件

<project
xmlns="http://maven.apache.org/POM/4.0.0"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instan
ce"
xsi:schemaLocation="http://maven.apache.org/P
OM/4.0.0 
http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<parent>
<groupId>com.bjsxt</groupId>
<artifactId>dubbo-user-provider</artifactId>
<version>0.0.1-SNAPSHOT</version>
</parent>
<artifactId>dubbo-user-interface</artifactId>
<dependencies>
<dependency>
<groupId>com.bjsxt</groupId>
<artifactId>dubbo-pojo</artifactId>
<version>0.0.1-SNAPSHOT</version>
</dependency>
</dependencies>
</project>
View Code

4.6创建 dubbo-user-service

4.6.1创建项目

4.6.2修改 POM 文件

<project
xmlns="http://maven.apache.org/POM/4.0.0"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instan
ce"
xsi:schemaLocation="http://maven.apache.org/P
OM/4.0.0 
http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<parent>
<groupId>com.bjsxt</groupId>
<artifactId>dubbo-user-provider</artifactId>
<version>0.0.1-SNAPSHOT</version>
</parent>
<artifactId>dubbo-user-service</artifactId>
<dependencies>
<dependency>
<groupId>com.bjsxt</groupId>
<artifactId>dubbo-user-interface</artifactId>
<version>0.0.1-SNAPSHOT</version>
</dependency>
<dependency>
<groupId>com.bjsxt</groupId>
<artifactId>dubbo-mapper</artifactId>
<version>0.0.1-SNAPSHOT</version>
</dependency>
<dependency>
<groupId>com.alibaba</groupId>
<artifactId>dubbo</artifactId>
</dependency>
<dependency>
<groupId>com.101tec</groupId>
<artifactId>zkclient</artifactId>
</dependency>
</dependencies>
</project>
View Code

4.6.3配置 MyBatis 与 Dubbo

spring的配置文件默认在resources下的META-INF下的spring下读取。

 

applicationContext-dao.xml
<?xml version="1.0" encoding="UTF-8"?>
<beans
xmlns="http://www.springframework.org/schema/beans
"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-i
nstance"
xmlns:p="http://www.springframework.org/schema/p"
xmlns:context="http://www.springframework.org
/schema/context"
xmlns:mvc="http://www.springframework.org/sch
ema/mvc"
xsi:schemaLocation="http://www.springframewor
k.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-m
vc-4.0.xsd
 
http://www.springframework.org/schema/context 
http://www.springframework.org/schema/context/spri
ng-context.xsd">
<!-- 配置解析 properties 文件的工具类 -->
<context:property-placeholder
location="classpath:*.properties"/>
<!-- 配置数据源 dataSource -->
<bean id="dataSource"
class="com.alibaba.druid.pool.DruidDataSource"
destroy-method="close">
 <property name="url" value="${jdbc.url}"
/>
<property name="username"
value="${jdbc.username}" />
<property name="password"
value="${jdbc.password}" />
<property name="driverClassName"
value="${jdbc.driver}" />
<property name="maxActive" value="10" />
<property name="minIdle" value="5" />
</bean>
<!-- 创建 mybatis 的上下文对象 -->
<bean
class="org.mybatis.spring.SqlSessionFactoryBean">
<property name="dataSource">
<ref bean="dataSource"/>
</property>
<property name="configLocation">
<value>classpath:mybatis/SqlMapperClient.xml</v
alue>
</property>
</bean>
<!-- 扫描 mybatis 的接口与映射配置文件 -->
<bean
class="org.mybatis.spring.mapper.MapperScannerConf
igurer">
<property name="basePackage"
value="com.bjsxt.mapper"/>
</bean>
</beans>
View Code
applicationContext-service.xml
<?xml version="1.0" encoding="UTF-8"?>
<beans
xmlns="http://www.springframework.org/schema/be
ans"
xmlns:xsi="http://www.w3.org/2001/XMLSchem
a-instance"
xmlns:p="http://www.springframework.org/schema/
p"
xmlns:context="http://www.springframework.
org/schema/context"
xmlns:mvc="http://www.springframework.org/
schema/mvc"
xsi:schemaLocation="http://www.springframe
work.org/schema/beans 
http://www.springframework.org/schema/beans/spr
ing-beans.xsd
 
http://www.springframework.org/schema/mvc 
http://www.springframework.org/schema/mvc/sprin
g-mvc-4.0.xsd
 
http://www.springframework.org/schema/context 
http://www.springframework.org/schema/context/s
pring-context.xsd">
<!-- 扫描 bean 对象 -->
<context:component-scan
base-package="com.bjsxt.dubbo.service.impl"/>
</beans>
View Code
applicationContext-trans.xml
<?xml version="1.0" encoding="UTF-8"?>
<beans
xmlns="http://www.springframework.org/schema/beans
"
xmlns:context="http://www.springframework.org
/schema/context"
xmlns:p="http://www.springframework.org/schema/p"
xmlns:aop="http://www.springframework.org/sch
ema/aop"
xmlns:tx="http://www.springframework.org/schema/tx
"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-i
nstance"
xsi:schemaLocation="http://www.springframewor
k.org/schema/beans 
http://www.springframework.org/schema/beans/spring
-beans-4.0.xsd
http://www.springframework.org/schema/context 
http://www.springframework.org/schema/context/spri
ng-context-4.0.xsd
http://www.springframework.org/schema/aop 
http://www.springframework.org/schema/aop/spring-a
op-4.0.xsd 
http://www.springframework.org/schema/tx 
http://www.springframework.org/schema/tx/spring-tx
-4.0.xsd
http://www.springframework.org/schema/util 
http://www.springframework.org/schema/util/spring￾util-4.0.xsd">
 <!-- 配置事物管理器的切面 -->
 <bean id="transactionMananger"
class="org.springframework.jdbc.datasource.DataSou
rceTransactionManager">
<property name="dataSource"
ref="dataSource"/> 
 </bean> 
 
 <!-- 配置事物传播行为 :其实就是那些方法应该受什
么样的事物控制-->
 <tx:advice id="advice"
transaction-manager="transactionMananger">
 <tx:attributes>
 <tx:method name="add*"
propagation="REQUIRED"/>
 <tx:method name="modify*"
propagation="REQUIRED"/>
 <tx:method name="update*"
propagation="REQUIRED"/>
 <tx:method name="dorp*"
propagation="REQUIRED"/>
 <tx:method name="del*"
propagation="REQUIRED"/>
 <tx:method name="find*"
read-only="true"/>
 </tx:attributes>
 </tx:advice>
 
 <!-- 那些类下的方法需要参与到当前的事物管理中 。
配置切点 -->
 <aop:config>
 <aop:advisor advice-ref="advice"
pointcut="execution(* 
com.bjsxt.dubbo.service.impl*.*(..))"/>
 </aop:config>
</beans>
View Code
application-dubbo.xml
<?xml version="1.0" encoding="UTF-8"?>
<beans
xmlns="http://www.springframework.org/schema/beans
"
 
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instan
ce"
 
xmlns:aop="http://www.springframework.org/schema/a
op"
 
xmlns:context="http://www.springframework.org/sche
ma/context"
 
xmlns:tx="http://www.springframework.org/schema/tx
"
 
xmlns:dubbo="http://code.alibabatech.com/schema/du
bbo"
 
xsi:schemaLocation="http://www.springframework.org
/schema/beans
 
http://www.springframework.org/schema/beans/spring
-beans.xsd
 
http://www.springframework.org/schema/aop
 
http://www.springframework.org/schema/aop/spring-a
op.xsd
 
http://www.springframework.org/schema/tx
 
http://www.springframework.org/schema/tx/spring-tx
.xsd
 
http://www.springframework.org/schema/context
 
http://www.springframework.org/schema/context/spri
ng-context.xsd
 
http://code.alibabatech.com/schema/dubbo
 
http://code.alibabatech.com/schema/dubbo/dubbo.xsd
">
 <import
resource="../../applicationContext-dao.xml"/>
 <import
resource="../../applicationContext-service.xml"/>
 <import
resource="../../applicationContext-trans.xml"/>
<dubbo:application name="user-provider"/>
<dubbo:registry
address="192.168.70.143:2181,192.168.70.143:2182,1
92.168.70.143:2183"
protocol="zookeeper"></dubbo:registry>
<dubbo:protocol name="dubbo"
port="20880"></dubbo:protocol>
</beans>
View Code

 

4.6.4测试整合


关于 dubbo 与 spring 的 jar 注入问题。
在开发时对于 spring 的 jar 的处理上我们有两种方案
1,依赖 dubbo 的坐标导入 spring 的容器所依赖的 jar 包。在使用过程中缺少 spring 的
组件时,我们在手动添加坐标。
2,在添加 dubbo 的坐标中剔除已包含的 spring 的 jar 包。自己手动导入所有使用 spring
组件的坐标。

4.7创建 dubbo-user-consumer

4.7.1创建项目

4.8创建 dubbo-user-portal-service

4.8.1创建项目

4.9修改 POM 文件

<project
xmlns="http://maven.apache.org/POM/4.0.0" 
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instan
ce"
xsi:schemaLocation="http://maven.apache.org/P
OM/4.0.0 
http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<parent>
<groupId>com.bjsxt</groupId>
<artifactId>dubbo-user-consumer</artifactId>
<version>0.0.1-SNAPSHOT</version>
</parent>
<artifactId>dubbo-user-portal-service</artifa
ctId>
<dependencies>
<dependency>
<groupId>com.bjsxt</groupId>
<artifactId>dubbo-pojo</artifactId>
<version>0.0.1-SNAPSHOT</version>
</dependency>
</dependencies>
</project
View Code

4.10创建 dubbo-user-portal

4.10.1 创建项目

4.10.2 修改 POM 文件

<project
xmlns="http://maven.apache.org/POM/4.0.0"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instan
ce"
xsi:schemaLocation="http://maven.apache.org/P
OM/4.0.0 
http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<parent>
<groupId>com.bjsxt</groupId>
<artifactId>dubbo-user-consumer</artifactId>
<version>0.0.1-SNAPSHOT</version>
</parent>
<artifactId>dubbo-user-portal</artifactId>
<packaging>war</packaging>
<dependencies>
<!-- 单元测试 -->
<dependency>
<groupId>com.bjsxt</groupId>
<artifactId>dubbo-user-portal-service</artifact
Id>
<version>0.0.1-SNAPSHOT</version>
</dependency>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
</dependency>
<!-- 日志处理 -->
<dependency>
<groupId>org.slf4j</groupId>
<artifactId>slf4j-log4j12</artifactId>
</dependency>
<!-- Spring -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-context</artifactId>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-beans</artifactId>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-webmvc</artifactId>
</dependency>
<!-- JSP 相关 -->
<dependency>
<groupId>jstl</groupId>
<artifactId>jstl</artifactId>
</dependency>
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>servlet-api</artifactId>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>jsp-api</artifactId>
<scope>provided</scope>
</dependency>
<!-- dubbo -->
<dependency>
<groupId>com.alibaba</groupId>
<artifactId>dubbo</artifactId>
</dependency>
<dependency>
<groupId>com.101tec</groupId>
<artifactId>zkclient</artifactId>
</dependency>
</dependencies>
<build>
<plugins>
<!-- 配置 Tomcat 插件 -->
<plugin>
<groupId>org.apache.tomcat.maven</groupId>
<artifactId>tomcat7-maven-plugin</artifactId>
<configuration>
<path>/</path>
<port>8080</port>
</configuration>
</plugin>
</plugins>
</build>
</project>
View Code

4.10.3 配置 SpringMVC,Spring,web.xml,Dubbo

applicationContext-dubbo.xml
<?xml version="1.0" encoding="UTF-8"?>
<beans
xmlns="http://www.springframework.org/schema/beans
"
 
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instan
ce"
 
xmlns:aop="http://www.springframework.org/schema/a
op"
 
xmlns:context="http://www.springframework.org/sche
ma/context"
 
xmlns:tx="http://www.springframework.org/schema/tx
"
 
xmlns:dubbo="http://code.alibabatech.com/schema/du
bbo"
 
xsi:schemaLocation="http://www.springframework.org
/schema/beans
 
http://www.springframework.org/schema/beans/spring
-beans.xsd
 
http://www.springframework.org/schema/aop
 
http://www.springframework.org/schema/aop/spring-a
op.xsd
 
http://www.springframework.org/schema/tx
 
http://www.springframework.org/schema/tx/spring-tx
.xsd
 
http://www.springframework.org/schema/context
 
http://www.springframework.org/schema/context/spri
ng-context.xsd
 
http://code.alibabatech.com/schema/dubbo
 
http://code.alibabatech.com/schema/dubbo/dubbo.xsd
">
<dubbo:application name="myconsumer"/>
<dubbo:registry
address="192.168.70.143:2181,192.168.70.143:2182,1
92.168.70.143:2183"
protocol="zookeeper"></dubbo:registry>
</beans>
View Code
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-i
nstance"
xmlns:p="http://www.springframework.org/schema/p"
xmlns:context="http://www.springframework.org
/schema/context"
xmlns:mvc="http://www.springframework.org/sch
ema/mvc"
xsi:schemaLocation="http://www.springframewor
k.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-m
vc-4.0.xsd
 
http://www.springframework.org/schema/context 
http://www.springframework.org/schema/context/spri
ng-context.xsd">
<!-- 扫描 bean 对象 -->
<context:component-scan
base-package="com.bjsxt.service"/>
</beans>
View Code
springmvc.xml
<?xml version="1.0" encoding="UTF-8"?>
<beans
xmlns="http://www.springframework.org/schema/beans
"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-i
nstance"
xmlns:p="http://www.springframework.org/schema/p"
xmlns:context="http://www.springframework.org
/schema/context"
xmlns:mvc="http://www.springframework.org/sch
ema/mvc"
xsi:schemaLocation="http://www.springframewor
k.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-m
vc-4.0.xsd
 
http://www.springframework.org/schema/context 
http://www.springframework.org/schema/context/spri
ng-context.xsd">
 <!-- 包的扫描器主要是扫描@controller -->
 <context:component-scan
base-package="com.bjsxt.web.controller"/> 
 <!-- 注册两个新对象 主要是为了来处理
springmvc 中的其他 anntation 如:@requestmapping -->
 <mvc:annotation-driven/>
 
 <!-- 视图解析器 -->
 <bean
class="org.springframework.web.servlet.view.Intern
alResourceViewResolver">
<property name="prefix"
value="/WEB-INF/jsp/" /><!-- jsp 所在的前缀 -->
<property name="suffix" value=".jsp" />
 </bean>
 <!-- 配置静态资源映射 -->
 <mvc:resources location="/WEB-INF/css/"
mapping="/css/**"/>
<mvc:resources location="/WEB-INF/js/"
mapping="/js/**"/>
</beans>
View Code
web.xml
<?xml version="1.0" encoding="UTF-8"?>
<web-app
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instan
ce"
xmlns="http://java.sun.com/xml/ns/javaee"
xsi:schemaLocation="http://java.sun.com/xml/n
s/javaee 
http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd"
id="WebApp_ID" version="3.0">
<!-- 上下文参数,告诉 Spring 配置文件路径 -->
<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>
<!-- 配置 springmvc -->
<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-val
ue>
</init-param>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>springmvc</servlet-name>
<url-pattern>/</url-pattern>
</servlet-mapping>
<filter>
<filter-name>encoding</filter-name>
<filter-class>org.springframework.web.filter.Ch
aracterEncodingFilter</filter-class>
<init-param>
<param-name>encoding</param-name>
<param-value>utf-8</param-value>
</init-param>
</filter>
<filter-mapping>
<filter-name>encoding</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>
<welcome-file-list>
<welcome-file>index.html</welcome-file>
<welcome-file>index.htm</welcome-file>
<welcome-file>index.jsp</welcome-file>
<welcome-file>default.html</welcome-file>
<welcome-file>default.htm</welcome-file>
<welcome-file>default.jsp</welcome-file>
</welcome-file-list>
</web-app>
View Code

4.10.4 测试整合

 

5 实现业务


5.1添加用户


5.1.1实现添加用户服务


5.1.1.1 dubbo-mapper

public interface UsersMapper {
void insertUsers(Users users);
}

<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD 
Mapper 3.0//EN"
"http://mybatis.org/dtd/mybatis-3-mapper.dtd" >
<mapper
namespace="com.bjsxt.mapper.UsersMapper">
<insert id="UsersMapper"
parameterType="com.bjsxt.pojo.Users">
insert into users(username,userage) 
values(#{username},#{userage})
</insert>
</mapper>

5.1.1.2 dubbo-user-interface

public interface AddUserDubboService {
void addUser(Users users);
}

5.1.1.3 dubbo-user-service

@Service
public class AddUserDubboServiceImpl implements
AddUserDubboService {
 @Autowired
 private UsersMapper usersMapper;
 
@Override
public void addUser(Users users) {
this.usersMapper.insertUsers(users);
}
}
<?xml version="1.0" encoding="UTF-8"?>
<beans
xmlns="http://www.springframework.org/schema/beans
"
 
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instan
ce"
 
xmlns:aop="http://www.springframework.org/schema/a
op"
 
xmlns:context="http://www.springframework.org/sche
ma/context"
 
xmlns:tx="http://www.springframework.org/schema/tx
"
 
xmlns:dubbo="http://code.alibabatech.com/schema/du
bbo"
 
xsi:schemaLocation="http://www.springframework.org
/schema/beans
 
http://www.springframework.org/schema/beans/spring
-beans.xsd
 
http://www.springframework.org/schema/aop
 
http://www.springframework.org/schema/aop/spring-a
op.xsd
 
http://www.springframework.org/schema/tx
 
http://www.springframework.org/schema/tx/spring-tx
.xsd
 
http://www.springframework.org/schema/context
 
http://www.springframework.org/schema/context/spri
ng-context.xsd
 
http://code.alibabatech.com/schema/dubbo
 
http://code.alibabatech.com/schema/dubbo/dubbo.xsd
">
 <import
resource="../../applicationContext-dao.xml"/>
 <import
resource="../../applicationContext-service.xml"/>
 <import
resource="../../applicationContext-trans.xml"/>
<dubbo:application name="user-provider"/>
<dubbo:registry
address="192.168.70.143:2181,192.168.70.143:2182,1
92.168.70.143:2183"
protocol="zookeeper"></dubbo:registry>
<dubbo:protocol name="dubbo"
port="20880"></dubbo:protocol>
<dubbo:service
interface="com.bjsxt.dubbo.service.AddUserDubboSer
vice"
ref="addUserDubboServiceImpl"></dubbo:service>
</beans>
View Code

 

5.1.2实现添加用户业务

5.1.2.1 dubbo-user-portal-service


Pom 文件

<project
xmlns="http://maven.apache.org/POM/4.0.0"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instan
ce"
xsi:schemaLocation="http://maven.apache.org/P
OM/4.0.0 
http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<parent>
<groupId>com.bjsxt</groupId>
<artifactId>dubbo-user-consumer</artifactId>
<version>0.0.1-SNAPSHOT</version>
</parent>
<artifactId>dubbo-user-portal-service</artifa
ctId>
<dependencies>
<dependency>
<groupId>com.bjsxt</groupId>
<artifactId>dubbo-user-interface</artifactId>
<version>0.0.1-SNAPSHOT</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-context</artifactId>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-beans</artifactId>
</dependency>
<dependency>
<groupId>com.bjsxt</groupId>
<artifactId>dubbo-pojo</artifactId>
<version>0.0.1-SNAPSHOT</version>
</dependency>
</dependencies>
</project>
View Code

业务接口以及接口实现

public interface UserService {
void addUsers(Users users);
}

@Service
public class UserServiceImpl implements
UserService {
@Autowired
private AddUserDubboService 
addUserDubboService;
@Override
public void addUsers(Users users) {
this.addUserDubboService.addUser(users);
}
}
View Code

dubbo-user-portal

UserController
@Controller
@RequestMapping("/user")
public class UserController {
@Autowired
private UserService userService;
@RequestMapping("/addUser")
public String addUser(Users users){
this.userService.addUsers(users);
return "ok";
}
}
View Code

 

applicationContext-dubbo.xml
<?xml version="1.0" encoding="UTF-8"?>
<beans
xmlns="http://www.springframework.org/schema/beans
"
 
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instan
ce"
 
xmlns:aop="http://www.springframework.org/schema/a
op"
 
xmlns:context="http://www.springframework.org/sche
ma/context"
 
xmlns:tx="http://www.springframework.org/schema/tx
"
 
xmlns:dubbo="http://code.alibabatech.com/schema/du
bbo"
 
xsi:schemaLocation="http://www.springframework.org
/schema/beans
 
http://www.springframework.org/schema/beans/spring
-beans.xsd
 
http://www.springframework.org/schema/aop
 
http://www.springframework.org/schema/aop/spring-a
op.xsd
 
http://www.springframework.org/schema/tx
 
http://www.springframework.org/schema/tx/spring-tx
.xsd
 
http://www.springframework.org/schema/context
 
http://www.springframework.org/schema/context/spri
ng-context.xsd
 
http://code.alibabatech.com/schema/dubbo
 
http://code.alibabatech.com/schema/dubbo/dubbo.xsd
">
<dubbo:application name="myconsumer"/>
<dubbo:registry
address="192.168.70.143:2181,192.168.70.143:2182,1
92.168.70.143:2183"
protocol="zookeeper"></dubbo:registry>
<dubbo:reference id="addUserDubboService"
interface="com.bjsxt.dubbo.service.AddUserDubboSer
vice"></dubbo:reference>
</beans>
View Code

 

addUser.jsp
<%@ page language="java" contentType="text/html; 
charset=UTF-8"
 pageEncoding="UTF-8"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 
Transitional//EN"
"http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type"
content="text/html; charset=UTF-8">
<title>Insert title here</title>
</head>
<body>
<form action="/user/addUser" method="post">
用户名:<input type="text" 
name="username"/><br/>
用户年龄:<input type="text" 
name="userage"/><br/>
<input type="submit" value="OKOK"/>
</form>
</body>
</html>
View Code
Ok.jsp
<%@ page language="java" contentType="text/html; 
charset=UTF-8"
 pageEncoding="UTF-8"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 
Transitional//EN"
"http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type"
content="text/html; charset=UTF-8">
<title>Insert title here</title>
</head>
<body>
操作成功請返回
</body>
</html>
View Code

 

测试

 

5.2查询用户

5.2.1实现查询用户服务

5.2.1.1 dubbo-user-interface

public interface FindUserDubboService {
List<Users> selectUsersAll();
}

5.2.1.2 dubbo-user-service

@Service
public class FindUserDubboServiceImpl implements
FindUserDubboService {
@Autowired
private UsersMapper usersMapper;
@Override
public List<Users> selectUsersAll() {
return this.usersMapper.selectAll();
}
}

5.2.1.3 application-dubbo.xml

<?xml version="1.0" encoding="UTF-8"?>
<beans
xmlns="http://www.springframework.org/schema/beans
"
 
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instan
ce"
 
xmlns:aop="http://www.springframework.org/schema/a
op"
 
xmlns:context="http://www.springframework.org/sche
ma/context"
 
xmlns:tx="http://www.springframework.org/schema/tx
"
 
xmlns:dubbo="http://code.alibabatech.com/schema/du
bbo"
 
xsi:schemaLocation="http://www.springframework.org
/schema/beans
 
http://www.springframework.org/schema/beans/spring
-beans.xsd
 
http://www.springframework.org/schema/aop
 
http://www.springframework.org/schema/aop/spring-a
op.xsd
 
http://www.springframework.org/schema/tx
 
http://www.springframework.org/schema/tx/spring-tx
.xsd
 
http://www.springframework.org/schema/context
 
http://www.springframework.org/schema/context/spri
ng-context.xsd
 
http://code.alibabatech.com/schema/dubbo
 
http://code.alibabatech.com/schema/dubbo/dubbo.xsd
">
 <import
resource="../../applicationContext-dao.xml"/>
 <import
resource="../../applicationContext-service.xml"/>
 <import
resource="../../applicationContext-trans.xml"/>
<dubbo:application name="user-provider"/>
<dubbo:registry
address="192.168.70.143:2181,192.168.70.143:2182,1
92.168.70.143:2183"
protocol="zookeeper"></dubbo:registry>
<dubbo:protocol name="dubbo"
port="20880"></dubbo:protocol>
<dubbo:service
interface="com.bjsxt.dubbo.service.AddUserDubboSer
vice"
ref="addUserDubboServiceImpl"></dubbo:service>
<dubbo:service 
interface="com.bjsxt.dubbo.service.FindUserDubboSe
rvice"
ref="findUserDubboServiceImpl"></dubbo:service>
</beans>
View Code

5.2.2实现查询用户业务

5.2.2.1 dubbo-user-portal-service

public interface UserService {
void addUsers(Users users);
List<Users> findUserAll();
}
@Service
public class UserServiceImpl implements
UserService {
@Autowired
private AddUserDubboService 
addUserDubboService;
@Autowired
private FindUserDubboService 
findUserDubboService;
@Override
public void addUsers(Users users) {
this.addUserDubboService.addUser(users);
}
@Override
public List<Users> findUserAll() {
return
this.findUserDubboService.selectUsersAll();
}
}
View Code

 

posted @ 2019-06-08 09:04  wq9  阅读(8072)  评论(0编辑  收藏  举报