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zookeeper-demo
提交 d4e41daf 编写于 作者: Kwan的解忧杂货铺@新空间代码工作室's avatar Kwan的解忧杂货铺@新空间代码工作室 🐭
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fix:Watcher监听

上级 d1778871
隐藏空白更改
内联 并排
Showing with 175 addition and 45 deletion
src/test/java/com/kwan/shuyu/watch/Watcher_01_NodeCache.java 0 → 100644
浏览文件 @ d4e41daf
package com.kwan.shuyu.watch;
import org.apache.curator.RetryPolicy;
import org.apache.curator.framework.CuratorFramework;
import org.apache.curator.framework.CuratorFrameworkFactory;
import org.apache.curator.framework.recipes.cache.*;
import org.apache.curator.retry.ExponentialBackoffRetry;
import org.junit.After;
import org.junit.Before;
import org.junit.Test;
/**
* Watcher监听
*
* @author : qinyingjie
* @version : 2.2.0
* @date : 2023/5/15 10:29
*/
public class Watcher_01_NodeCache {
private CuratorFramework client;
/**
* 建立连接
*/
@Before
public void testConnect() {
/*
*
* @param connectString 连接字符串。zk server 地址和端口 "120.79.36.53:2181,120.79.36.53:2182,120.79.36.53:2183"
* @param sessionTimeoutMs 会话超时时间 单位ms
* @param connectionTimeoutMs 连接超时时间 单位ms
* @param retryPolicy 重试策略
*/
/* //重试策略
RetryPolicy retryPolicy = new ExponentialBackoffRetry(3000,10);
//1.第一种方式
CuratorFramework client = CuratorFrameworkFactory.newClient("120.79.36.53:2181,120.79.36.53:2182,120.79.36.53:2183",
60 * 1000, 15 * 1000, retryPolicy);*/
//重试策略
RetryPolicy retryPolicy = new ExponentialBackoffRetry(3000, 10);
//2.第二种方式
//CuratorFrameworkFactory.builder();
client = CuratorFrameworkFactory.builder()
.connectString("120.79.36.53:2181,120.79.36.53:2182,120.79.36.53:2183")
.sessionTimeoutMs(60 * 1000)
.connectionTimeoutMs(15 * 1000)
.retryPolicy(retryPolicy)
.namespace("itheima")
.build();
//开启连接
client.start();
}
@After
public void close() {
if (client != null) {
client.close();
}
}
/**
* 演示 NodeCache：给指定一个节点注册监听器
*/
@Test
public void testNodeCache() throws Exception {
//1. 创建NodeCache对象
final NodeCache nodeCache = new NodeCache(client, "/app1");
//2. 注册监听
nodeCache.getListenable().addListener(new NodeCacheListener() {
@Override
public void nodeChanged() throws Exception {
System.out.println("节点变化了~");
//获取修改节点后的数据
byte[] data = nodeCache.getCurrentData().getData();
System.out.println(new String(data));
}
});
//3. 开启监听.如果设置为true，则开启监听是，加载缓冲数据
nodeCache.start(true);
while (true) {
}
}
}
\ No newline at end of file
src/test/java/com/kwan/shuyu/watch/CuratorWatcherTest.java → src/test/java/com/kwan/shuyu/watch/Watcher_02_PathChildrenCache.java
浏览文件 @ d4e41daf
......@@ -9,7 +9,15 @@ import org.junit.After;
import org.junit.Before;
import org.junit.Test;
public class CuratorWatcherTest {
/**
* Watcher监听
*
* @author : qinyingjie
* @version : 2.2.0
* @date : 2023/5/15 10:29
*/
public class Watcher_02_PathChildrenCache {
private CuratorFramework client;
/**
......@@ -51,29 +59,6 @@ public class CuratorWatcherTest {
}
}
/**
* 演示 NodeCache：给指定一个节点注册监听器
*/
@Test
public void testNodeCache() throws Exception {
//1. 创建NodeCache对象
final NodeCache nodeCache = new NodeCache(client, "/app1");
//2. 注册监听
nodeCache.getListenable().addListener(new NodeCacheListener() {
@Override
public void nodeChanged() throws Exception {
System.out.println("节点变化了~");
//获取修改节点后的数据
byte[] data = nodeCache.getCurrentData().getData();
System.out.println(new String(data));
}
});
//3. 开启监听.如果设置为true，则开启监听是，加载缓冲数据
nodeCache.start(true);
while (true) {
}
}
/**
* 演示 PathChildrenCache：监听某个节点的所有子节点们
*/
......@@ -103,25 +88,4 @@ public class CuratorWatcherTest {
while (true) {
}
}
/**
* 演示 TreeCache：监听某个节点自己和所有子节点们
*/
@Test
public void testTreeCache() throws Exception {
//1. 创建监听器
TreeCache treeCache = new TreeCache(client, "/app2");
//2. 注册监听
treeCache.getListenable().addListener(new TreeCacheListener() {
@Override
public void childEvent(CuratorFramework client, TreeCacheEvent event) throws Exception {
System.out.println("节点变化了");
System.out.println(event);
}
});
//3. 开启
treeCache.start();
while (true) {
}
}
}
\ No newline at end of file
src/test/java/com/kwan/shuyu/watch/Watcher_03_TreeCache.java 0 → 100644
浏览文件 @ d4e41daf
package com.kwan.shuyu.watch;
import org.apache.curator.RetryPolicy;
import org.apache.curator.framework.CuratorFramework;
import org.apache.curator.framework.CuratorFrameworkFactory;
import org.apache.curator.framework.recipes.cache.*;
import org.apache.curator.retry.ExponentialBackoffRetry;
import org.junit.After;
import org.junit.Before;
import org.junit.Test;
/**
* Watcher监听
*
* @author : qinyingjie
* @version : 2.2.0
* @date : 2023/5/15 10:29
*/
public class Watcher_03_TreeCache {
private CuratorFramework client;
/**
* 建立连接
*/
@Before
public void testConnect() {
/*
*
* @param connectString 连接字符串。zk server 地址和端口 "120.79.36.53:2181,120.79.36.53:2182,120.79.36.53:2183"
* @param sessionTimeoutMs 会话超时时间 单位ms
* @param connectionTimeoutMs 连接超时时间 单位ms
* @param retryPolicy 重试策略
*/
/* //重试策略
RetryPolicy retryPolicy = new ExponentialBackoffRetry(3000,10);
//1.第一种方式
CuratorFramework client = CuratorFrameworkFactory.newClient("120.79.36.53:2181,120.79.36.53:2182,120.79.36.53:2183",
60 * 1000, 15 * 1000, retryPolicy);*/
//重试策略
RetryPolicy retryPolicy = new ExponentialBackoffRetry(3000, 10);
//2.第二种方式
//CuratorFrameworkFactory.builder();
client = CuratorFrameworkFactory.builder()
.connectString("120.79.36.53:2181,120.79.36.53:2182,120.79.36.53:2183")
.sessionTimeoutMs(60 * 1000)
.connectionTimeoutMs(15 * 1000)
.retryPolicy(retryPolicy)
.namespace("itheima")
.build();
//开启连接
client.start();
}
@After
public void close() {
if (client != null) {
client.close();
}
}
/**
* 演示 TreeCache：监听某个节点自己和所有子节点们
*/
@Test
public void testTreeCache() throws Exception {
//1. 创建监听器
TreeCache treeCache = new TreeCache(client, "/app2");
//2. 注册监听
treeCache.getListenable().addListener(new TreeCacheListener() {
@Override
public void childEvent(CuratorFramework client, TreeCacheEvent event) throws Exception {
System.out.println("节点变化了");
System.out.println(event);
}
});
//3. 开启
treeCache.start();
while (true) {
}
}
}
\ No newline at end of file
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