spring + dubbo + SSM + maven例子demo
dubbo是一款高性能、轻量级的开源Java RPC框架,它提供了三大核心能力:面向接口的远程方法调用,智能容错和负载均衡,以及服务自动注册和发现。
架构如图(来自官网):
搭建简单的dubbo项目,步骤如下:
一,搭建父工程,再搭建子工程。如图:
1,新建父工程,Packing 选择pom方式
2,新建子工程test-api
在父工程处,右键 maven - new maven module project :
如上,再建立其他子项目。
3,父工程pom.xml添加jar包,如下:
<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.luo</groupId> <artifactId>test-parent</artifactId> <version>0.0.1-SNAPSHOT</version> <packaging>pom</packaging> <build /> <properties> <motan.version>0.3.0</motan.version> <!-- 在阿里巴巴内部广泛使用的GA版本为:2.4.9,强烈推荐此版本 --> <dubbo.version>2.5.3</dubbo.version> <dubbox.version>2.8.4</dubbox.version> <spring.version>4.3.6.RELEASE</spring.version> <java.version>1.7</java.version> <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding> </properties> <dependencies> <dependency> <groupId>com.alibaba</groupId> <artifactId>dubbo</artifactId> <version>2.5.3</version> <exclusions> <exclusion> <groupId>org.springframework</groupId> <artifactId>spring</artifactId> </exclusion> </exclusions> </dependency> <dependency> <groupId>com.github.sgroschupf</groupId> <artifactId>zkclient</artifactId> <version>0.1</version> </dependency> <!-- spring相关 --> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-core</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-context</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-web</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-aop</artifactId> <version>${spring.version}</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-tx</artifactId> <version>${spring.version}</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-orm</artifactId> <version>${spring.version}</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-context-support</artifactId> <version>${spring.version}</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-test</artifactId> <version>${spring.version}</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-jms</artifactId> <version>${spring.version}</version> </dependency> <dependency> <groupId>org.aspectj</groupId> <artifactId>aspectjrt</artifactId> <version>1.6.11</version> </dependency> <dependency> <groupId>org.aspectj</groupId> <artifactId>aspectjweaver</artifactId> <version>1.6.11</version> </dependency> </dependencies> <modules> <module>test-api</module> <module>test-consumer</module> <module>test-provider</module> </modules> </project>
4,api项目添加:
package com.luo;
import java.util.List;
import com.luo.domain.User;
public interface DemoService {
String sayHello(String name);
List<User> getUser();
}
package com.luo.domain;
import java.io.Serializable;
public class User implements Serializable {
int id;
String name;
int age;
public User(int id, String name, int age) {
super();
this.id = id;
this.name = name;
this.age = age;
}
public int getId() {
return id;
}
public void setId(int id) {
this.id = id;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public int getAge() {
return age;
}
public void setAge(int age) {
this.age = age;
}
}
结构如图:
5,provider:实现接口DemoService:
package com.luo;
import java.util.ArrayList;
import java.util.List;
import org.springframework.stereotype.Service;
import com.luo.domain.User;
@Service("demoService")
public class DemoServiceImpl implements DemoService {
public String sayHello(String name) {
return name;
}
public List<User> getUser() {
List<User> list = new ArrayList<User>();
for (int i = 0; i < 3; i++) {
User user = new User(i, "name" + i, i);
list.add(user);
}
return list;
}
}
dubbo-provider.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:dubbo="http://code.alibabatech.com/schema/dubbo"
xsi:schemaLocation="http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans.xsd
http://code.alibabatech.com/schema/dubbo
http://code.alibabatech.com/schema/dubbo/dubbo.xsd">
<!-- 提供方应用信息,用于计算依赖关系 -->
<dubbo:application name="dubbo_provider" />
<!-- 使用zookeeper注册中心暴露服务地址 -->
<dubbo:registry address="zookeeper://127.0.0.1:2181" />
<!-- 用dubbo协议在20880端口暴露服务 -->
<dubbo:protocol name="dubbo" port="20880" />
<!-- 声明需要暴露的服务接口 -->
<dubbo:service interface="com.luo.DemoService" ref="demoService" />
<!-- 使用注解方式暴露接口 -->
<!-- <dubbo:annotation package="com.luo.DemoService" /> -->
</beans>
springmvc.xml:
<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans" xmlns:aop="http://www.springframework.org/schema/aop"
xmlns:context="http://www.springframework.org/schema/context"
xmlns:util="http://www.springframework.org/schema/util" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://www.springframework.org/schema/aop
http://www.springframework.org/schema/aop/spring-aop-4.0.xsd
http://www.springframework.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/spring-context-4.0.xsd
http://www.springframework.org/schema/util
http://www.springframework.org/schema/util/spring-util-4.0.xsd"
default-autowire="byName">
<aop:aspectj-autoproxy />
<context:component-scan base-package="com.luo" />
<import resource="classpath:dubbo-provider.xml" />
</beans>
测试类Test:
package com.test;
import java.io.IOException;
import org.springframework.context.support.ClassPathXmlApplicationContext;
public class Test {
public static void main(String[] args) throws Exception {
ClassPathXmlApplicationContext context = new ClassPathXmlApplicationContext("classpath:springmvc.xml");
context.start();
System.out.println("Dubbo provider start...");
try {
System.in.read(); // 按任意键退出
} catch (IOException e) {
e.printStackTrace();
}
}
}
结构如图:
6,项目consumer
dubbo-consumer.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:dubbo="http://code.alibabatech.com/schema/dubbo"
xsi:schemaLocation="http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans.xsd
http://code.alibabatech.com/schema/dubbo
http://code.alibabatech.com/schema/dubbo/dubbo.xsd ">
<!-- 消费方应用名,用于计算依赖关系,不是匹配条件,不要与提供方一样 -->
<dubbo:application name="dubbo_consumer" />
<!-- 使用multicast广播注册中心暴露发现服务地址 -->
<dubbo:registry protocol="zookeeper" address="zookeeper://127.0.0.1:2181" />
<!-- 生成远程服务代理,可以和本地bean一样使用demoService -->
<dubbo:reference id="demoService" interface="com.luo.DemoService" />
</beans>
springmvc.xml:
<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans" xmlns:aop="http://www.springframework.org/schema/aop"
xmlns:context="http://www.springframework.org/schema/context"
xmlns:util="http://www.springframework.org/schema/util" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://www.springframework.org/schema/aop
http://www.springframework.org/schema/aop/spring-aop-4.0.xsd
http://www.springframework.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/spring-context-4.0.xsd
http://www.springframework.org/schema/util
http://www.springframework.org/schema/util/spring-util-4.0.xsd"
default-autowire="byName">
<aop:aspectj-autoproxy />
<context:component-scan base-package="com.luo" />
<import resource="classpath:/dubbo-consumer.xml" />
</beans>
测试类Test:
package com.test;
import java.io.IOException;
import org.springframework.context.support.ClassPathXmlApplicationContext;
import com.alibaba.dubbo.config.annotation.Reference;
import com.luo.DemoService;
public class Test {
public static void main(String[] args) {
ClassPathXmlApplicationContext context = new ClassPathXmlApplicationContext(new String[] { "classpath:springmvc.xml" });
context.start();
DemoService demoService = (DemoService) context.getBean("demoService");
System.out.println(demoService.sayHello("哈哈哈"));
System.out.println(demoService.getUser());
try {
System.in.read();
} catch (IOException e) {
e.printStackTrace();
}
}
}
结构如图:
7,下载zookeeper,然后进入bin,找到zkServer.cmd,双击运行。参考:https://blog.csdn.net/jingyangv587/article/details/78901508
8,运行provider的Test类:
9,运行consumer的Test类:
二、admin平台管理
参考:https://blog.csdn.net/jingyangv587/article/details/78904369
提供者:
消费者:
三、搭建web项目。
1、 搭建子项目test-web,create simple...不选,next,如图:
选择webapp这个,然后创建。
2、会报错,根据错误提示,搜索然后修复好。
3,参照上面和 https://www.cnblogs.com/luoa/articles/9727008.html,把项目做成spring mvc,并把一些文件抄过来,其中,注意修改web.xml。
HelloController:
package com.aluo.controller;
import javax.annotation.Resource;
import org.springframework.stereotype.Controller;
import org.springframework.ui.ModelMap;
import org.springframework.web.bind.annotation.RequestMapping;
import com.alibaba.dubbo.config.annotation.Reference;
import com.luo.DemoService;
@Controller
public class HelloController {
@Resource(name="demoService")
private DemoService demoService;
@RequestMapping("/welcome")
public String welcome(ModelMap model) {
System.out.println("begin");
System.out.println(demoService.getUser());
model.addAttribute("message", demoService.sayHello("hello dubbo"));
return "welcome";
}
}
结构如图:
4,运行zookeeper,和provider,再把项目加入tomcat运行,访问 http://localhost:8080/test-web/welcome,如图:
整个项目结构图: