window上安装zookeeper和可视化界面zkui

刺骨的言语ヽ痛彻心扉 2022-12-25 00:47 155阅读 0赞

### 一 序 ###

在window上使用zookeeper实现简单的分布式锁，并配合使用可视化界面zkui

### 二 安装zookeeper ###

#### 下载安装zookeeper ####

*  上官网下载最新zookeeper [官网下载][Link 1].
 *  如果官网下载太慢，可使用我的**zookeeper3.5.4**版本

> 链接：https://pan.baidu.com/s/1PxdloBT1GJvHIFHh9mCtWQ  
> 提取码：oq9l

#### 踩坑 ####

如果去官网下载的小伙伴一定要注意了，现在的版本的已经把编译和未编译的版本分开成了两个项目。应该是从3.5.4后的版本开始。  
所以大家下载的时候一定要下载尾缀有 **-bin** 的文件。

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzM5ODE4MzI1_size_16_color_FFFFFF_t_70][]  
点击第一个链接，里面是编译好的项目。  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzM5ODE4MzI1_size_16_color_FFFFFF_t_70 1]  
选择任意一个项目后缀带 -bin 的连接进行下载就行了。

#### 本地配置zookeeper ####

现在我把下载好的zookeeper解压并放在了D盘下，

*  外层zookeeper文件夹是自己新创建的
 *  zookeeper-3.5.4-beta文件夹则是解压出来的
 *  并在zookeeper文件夹下创建两个文件夹 **data** 和 **log**  
    ![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzM5ODE4MzI1_size_16_color_FFFFFF_t_70 2]
 *  进入zookeeper包中的conf文件夹中  
    ![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzM5ODE4MzI1_size_16_color_FFFFFF_t_70 3]
 *  找到尾缀为 **.cfg** 文件，复制一份在当前目录下并修改名称为 **zoo.cfg**,或者直接在原文件上修改。  
    ![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzM5ODE4MzI1_size_16_color_FFFFFF_t_70 4]  
    这里我直接修改为zoo.cfg
 *  记事本打开修改好的zoo.cfg
 *  新增两行并保存

> dataDir=D:\\zookeeper\\data  
> dataLogDir=D:\\zookeeper\\log

dataDir为刚才自己新建的data路径  
dataLogDir为新建的log路径  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzM5ODE4MzI1_size_16_color_FFFFFF_t_70 5]

#### 本地启动zookeeper ####

*  首先进入zookeeper的bin文件下  
    ![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzM5ODE4MzI1_size_16_color_FFFFFF_t_70 6]
 *  首先命令行启动服务 **zkserver.cmd**，或者双击zkserver.cmd  
    ![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzM5ODE4MzI1_size_16_color_FFFFFF_t_70 7]
 *  过后命令行启动 **zkCli.cmd**，或者双击zkCli.cmd(显示如下界面就是启动成功了)  
    ![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzM5ODE4MzI1_size_16_color_FFFFFF_t_70 8]

### 三 安装可视化界面 zkui ###

#### 下载zkui ####

*  [github下载 ][github_]
 *  第二种就是自己提前下载好的

> 链接：https://pan.baidu.com/s/1F3PqyrZB46l0z\_GWYDV10g  
> 提取码：a2wv

#### 配置安装zkui ####

*  把下载好的zkui解压并放在d盘下  
    ![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzM5ODE4MzI1_size_16_color_FFFFFF_t_70 9]  
    注：因为zkui没有提供编译好的包，所以需要我们自己编译并打包运行

方式一： 可使用命令行打包（前提是本地需要先配置maven）

*  首先编译项目命令

mvn clean compile

*  然后打包项目

mvn clean package

方式二：使用idea进行打包（本教程使用的）

*  使用idea打开zkui项目
 *  首先双击 clean，成功后，再次双击package进行打包  
    ![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzM5ODE4MzI1_size_16_color_FFFFFF_t_70 10]
 *  上述操作完成后，会新生产一个terget文件，在文件中会有刚刚生成的jar包  
    ![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzM5ODE4MzI1_size_16_color_FFFFFF_t_70 11]  
    ![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzM5ODE4MzI1_size_16_color_FFFFFF_t_70 12]
 *  然后在zkui文件里找到 **config.cfg** 并打开
 *  配置自己的zookeeper地址  
    ![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzM5ODE4MzI1_size_16_color_FFFFFF_t_70 13]
 *  修改完后，**需要把 config.cfg文件复制一份放在和 刚刚打好的 jar包同一级的目录文件下**（很重要）  
    ![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzM5ODE4MzI1_size_16_color_FFFFFF_t_70 14]

#### 启动zkui ####

*  直接在当前文件夹下 cmd命名行运行  
    ![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzM5ODE4MzI1_size_16_color_FFFFFF_t_70 15]
 *  弹出命令框，进行jar运行，输入并回车

java -jar zkui-2.0-SNAPSHOT-jar-with-dependencies.jar

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzM5ODE4MzI1_size_16_color_FFFFFF_t_70 16]

这样就是运行成功了

*  本地访问 localhost:9090  
    ![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzM5ODE4MzI1_size_16_color_FFFFFF_t_70 17]
 *  输入默认账号： admin 密码 : manger  
    ![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzM5ODE4MzI1_size_16_color_FFFFFF_t_70 18]  
    着就算完成了，启动zookeeper一起使用。

#### 四 实现简单的分布式锁 ####

*  使用idea创建一个maven项目
 *  引入依赖

<dependency>
                <groupId>org.apache.curator</groupId>
                <artifactId>curator-recipes</artifactId>
                <version>5.1.0</version>
            </dependency>

*  代码实现

public class ZookeeperLockTest { 
            public static void main(String[] args)  { 
                CuratorFramework zkClient = getZkClient();
                String lockPath = "/lock";
                InterProcessMutex lock = new InterProcessMutex(zkClient, lockPath);
                //模拟50个线程抢锁
                for (int i = 0; i < 50; i++) { 
                    new Thread(new TestThread(i, lock)).start();
                }
            }
    
    
            static class TestThread implements Runnable { 
                private Integer threadFlag;
                private InterProcessMutex lock;
    
                public TestThread(Integer threadFlag, InterProcessMutex lock) { 
                    this.threadFlag = threadFlag;
                    this.lock = lock;
                }
    
                public void run() { 
                    try { 
                        lock.acquire();
                        System.out.println("第"+threadFlag+"线程获取到了锁");
                        //等到1秒后释放锁
                        Thread.sleep(500);
                    } catch (Exception e) { 
                        e.printStackTrace();
                    }finally { 
                        try { 
                            lock.release();
                        } catch (Exception e) { 
                            e.printStackTrace();
                        }
                    }
                }
            }
    
            private static CuratorFramework getZkClient() { 
                String zkServerAddress = "localhost:2181";
                ExponentialBackoffRetry retryPolicy = new ExponentialBackoffRetry(1000, 3, 5000);
                CuratorFramework zkClient = CuratorFrameworkFactory.builder()
                        .connectString(zkServerAddress)
                        .sessionTimeoutMs(5000)
                        .connectionTimeoutMs(5000)
                        .retryPolicy(retryPolicy)
                        .build();
                zkClient.start();
                return zkClient;
            }
    
    }

*  运行main方法，控制台打印  
    ![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzM5ODE4MzI1_size_16_color_FFFFFF_t_70 19]  
    在 线程抢锁期间，刷新页面查看 zkui 界面下的 lock文件夹下面的数据  
    ![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzM5ODE4MzI1_size_16_color_FFFFFF_t_70 20]  
    当项目运行完成后，相应的lock文件也会被释放销毁，刷新页面如下  
    ![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzM5ODE4MzI1_size_16_color_FFFFFF_t_70 21]  
    详细简单分布式锁的解析可查看地址 ：[传送][Link 2]

[Link 1]: https://zookeeper.apache.org/releases.html#download
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[github_]: https://github.com/DeemOpen/zkui
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[Link 2]: https://www.runoob.com/w3cnote/zookeeper-locks.html