手写RPC框架-zookeeper发布，获取
手写RPC框架
项目依赖关系，父项目zookeeper，
子模块
pojo: service中需要的实体类
service：包含被serviceimpl和consumer依赖的接口。
serviceimpl:provider提供的服务内容
consumer：消费者，调用服务内容。
父项目管理子模块
<modules>
<module>pojo</module>
<module>service</module>
<module>serviceimpl</module>
<module>consumer</module>
</modules>
每个子模块都要去继承父项目
<parent>
<artifactId>zookeeper</artifactId>
<groupId>com.msb</groupId>
<version>1.0-SNAPSHOT</version>
</parent>
consumer管理service，serviceimpl去管理service；service去管理pojo分别写入各自项目的pom文件中去
service去管理pojo
<dependencies>
<dependency>
<groupId>com.msb</groupId>
<artifactId>pojo</artifactId>
<version>1.0-SNAPSHOT</version>
</dependency>
</dependencies>
serviceimpl去管理service,,consumer管理service
<dependencies>
<dependency>
<groupId>com.msb</groupId>
<artifactId>service</artifactId>
<version>1.0-SNAPSHOT</version>
</dependency>
</dependencies>
pojo中写实体类，id，name，使用lombok实现
<dependencies>
<dependency>
<groupId>org.projectlombok</groupId>
<artifactId>lombok</artifactId>
<version>1.18.22</version>
</dependency>
</dependencies>
父类中的配置文件
<?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>com.msb</groupId>
<artifactId>zookeeper</artifactId>
<packaging>pom</packaging>
<version>1.0-SNAPSHOT</version>
<modules>
<module>pojo</module>
<module>service</module>
<module>serviceimpl</module>
<module>consumer</module>
</modules>
<properties>
<maven.compiler.source>8</maven.compiler.source>
<maven.compiler.target>8</maven.compiler.target>
</properties>
<!--zookeeper依赖注入-->
<dependencies>
<dependency>
<groupId>org.apache.zookeeper</groupId>
<artifactId>zookeeper</artifactId>
<version>3.5.10</version>
</dependency>
</dependencies>
</project>
pojo的配置文件
<?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">
<parent>
<artifactId>zookeeper</artifactId>
<groupId>com.msb</groupId>
<version>1.0-SNAPSHOT</version>
</parent>
<modelVersion>4.0.0</modelVersion>
<artifactId>pojo</artifactId>
<properties>
<maven.compiler.source>8</maven.compiler.source>
<maven.compiler.target>8</maven.compiler.target>
</properties>
<dependencies>
<dependency>
<groupId>org.projectlombok</groupId>
<artifactId>lombok</artifactId>
<version>1.18.22</version>
</dependency>
</dependencies>
</project>
实体类pojo-persion
package com.msb;
import lombok.AllArgsConstructor;
import lombok.Data;
import lombok.NoArgsConstructor;
import java.io.Serializable;
@AllArgsConstructor
@NoArgsConstructor
@Data
/**
* 需要跨服务器通信，需要序列化接口
*/
public class persion implements Serializable {
private Integer id;
private String name;
}
service的配置文件
<?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">
<parent>
<artifactId>zookeeper</artifactId>
<groupId>com.msb</groupId>
<version>1.0-SNAPSHOT</version>
</parent>
<modelVersion>4.0.0</modelVersion>
<artifactId>service</artifactId>
<properties>
<maven.compiler.source>8</maven.compiler.source>
<maven.compiler.target>8</maven.compiler.target>
</properties>
<dependencies>
<dependency>
<groupId>com.msb</groupId>
<artifactId>pojo</artifactId>
<version>1.0-SNAPSHOT</version>
</dependency>
</dependencies>
</project>
service,中定义接口方法
package com.msb;
import java.rmi.Remote;
import java.rmi.RemoteException;
import java.util.List;
/**
* 继承Remote抛出RemoteException
*/
public interface MyPersion extends Remote {
public List<persion> findAll() throws RemoteException;
}
serviceImpl的配置文件
<?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">
<parent>
<artifactId>zookeeper</artifactId>
<groupId>com.msb</groupId>
<version>1.0-SNAPSHOT</version>
</parent>
<modelVersion>4.0.0</modelVersion>
<artifactId>serviceimpl</artifactId>
<properties>
<maven.compiler.source>8</maven.compiler.source>
<maven.compiler.target>8</maven.compiler.target>
</properties>
<dependencies>
<dependency>
<groupId>com.msb</groupId>
<artifactId>service</artifactId>
<version>1.0-SNAPSHOT</version>
</dependency>
<dependency>
<groupId>com.msb</groupId>
<artifactId>zookeeper</artifactId>
<version>1.0-SNAPSHOT</version>
</dependency>
</dependencies>
</project>
serviceImpl,提供者的实现类，实现的service的接口
package com.msb.service.impl;
import com.msb.MyPersion;
import com.msb.persion;
import java.rmi.RemoteException;
import java.rmi.server.RMIClientSocketFactory;
import java.rmi.server.RMIServerSocketFactory;
import java.rmi.server.UnicastRemoteObject;
import java.util.ArrayList;
import java.util.List;
/**
* 这里的实现类必须继承UnicastRemoteObject方法，并且改成public
*/
public class MyPersionImpl extends UnicastRemoteObject implements MyPersion {
public MyPersionImpl() throws RemoteException {
}
public MyPersionImpl(int port) throws RemoteException {
super(port);
}
public MyPersionImpl(int port, RMIClientSocketFactory csf, RMIServerSocketFactory ssf) throws RemoteException {
super(port, csf, ssf);
}
@Override
public List<persion> findAll() throws RemoteException {
List<persion> list = new ArrayList<>();
list.add(new persion(1,"张三"));
list.add(new persion(2,"李四"));
return list;
}
}
RmiRun将数据写入zookeeper
import com.msb.service.impl.MyPersionImpl;
import org.apache.zookeeper.*;
import javax.naming.spi.NamingManager;
import java.io.IOException;
import java.net.MalformedURLException;
import java.rmi.AlreadyBoundException;
import java.rmi.Naming;
import java.rmi.RemoteException;
import java.rmi.registry.LocateRegistry;
public class RmiRun {
public static void main(String[] args) {
try {
MyPersionImpl myPersion = new MyPersionImpl();
LocateRegistry.createRegistry(8888);
String url = "rmi://localhost:8888/myPersion";
Naming.bind(url,myPersion);
ZooKeeper zooKeeper = new ZooKeeper("192.168.226.128:2181", 100000, new Watcher() {
@Override
public void process(WatchedEvent watchedEvent) {
System.out.println("注册成功");
}
});
String context = zooKeeper.create("/test/myPersion",url.getBytes(), ZooDefs.Ids.OPEN_ACL_UNSAFE, CreateMode.PERSISTENT);
System.out.println("发布成功");
} catch (MalformedURLException e) {
e.printStackTrace();
} catch (AlreadyBoundException e) {
e.printStackTrace();
} catch (RemoteException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
} catch (InterruptedException e) {
e.printStackTrace();
} catch (KeeperException e) {
e.printStackTrace();
}
}
}
consumer的配置文件
<?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">
<parent>
<artifactId>zookeeper</artifactId>
<groupId>com.msb</groupId>
<version>1.0-SNAPSHOT</version>
</parent>
<modelVersion>4.0.0</modelVersion>
<artifactId>consumer</artifactId>
<properties>
<maven.compiler.source>8</maven.compiler.source>
<maven.compiler.target>8</maven.compiler.target>
</properties>
<dependencyManagement>
<dependencies>
<!--scope解决双继承问题-->
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-dependencies</artifactId>
<version>2.1.10.RELEASE</version>
<type>pom</type>
<scope>import</scope>
</dependency>
</dependencies>
</dependencyManagement>
<dependencies>
<dependency>
<groupId>com.msb</groupId>
<artifactId>service</artifactId>
<version>1.0-SNAPSHOT</version>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>org.apache.zookeeper</groupId>
<artifactId>zookeeper</artifactId>
<version>3.5.10</version>
</dependency>
</dependencies>
</project>
consumer中定义接口方法
package com.msb.service.impl;
import com.msb.persion;
import java.util.List;
public interface PersionService {
public List<persion> show();
}
实现类
package com.msb.service;
import com.msb.MyPersion;
import com.msb.persion;
import com.msb.service.impl.PersionService;
import org.apache.zookeeper.KeeperException;
import org.apache.zookeeper.WatchedEvent;
import org.apache.zookeeper.Watcher;
import org.apache.zookeeper.ZooKeeper;
import org.springframework.stereotype.Service;
import java.io.IOException;
import java.net.MalformedURLException;
import java.rmi.Naming;
import java.rmi.NotBoundException;
import java.rmi.RemoteException;
import java.util.List;
@Service
public class PersionServiceImpl implements PersionService {
public List<persion> show(){
try {
ZooKeeper zooKeeper = new ZooKeeper("192.168.226.128:2181", 100000, new Watcher() {
@Override
public void process(WatchedEvent watchedEvent) {
System.out.println("获取连接");
}
});
byte[] result = zooKeeper.getData("/rpc/provider",false,null);
//此处调用的service的接口方法
MyPersion myPersion =(MyPersion) Naming.lookup(new String(result));
return myPersion.findAll();
} catch (MalformedURLException e) {
e.printStackTrace();
} catch (NotBoundException e) {
e.printStackTrace();
} catch (RemoteException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
} catch (InterruptedException e) {
e.printStackTrace();
} catch (KeeperException e) {
e.printStackTrace();
}
return null;
}
}
consumer的启动类
package com.msb.controller;
import com.msb.persion;
import com.msb.service.impl.PersionService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.stereotype.Repository;
import org.springframework.web.bind.annotation.RequestBody;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.ResponseBody;
import java.util.List;
@Controller
public class DemoController {
@Autowired
private PersionService persionService;
@RequestMapping("/show")
@ResponseBody
public List<persion> show(){
return persionService.show();
}
}
访问对应端口下的/show即可读取到另一服务端返回的数据
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