上一篇:SpringBoot+zk+dubbo架构实践(一):本地部署zookeeper
前言
这是第二篇了,本篇我们完成两件事情。
1、搭建SpringBoot 框架;
2、基于spring boot框架访问zookeeper。
搭建SpringBoot框架
其实之前“IT实战联盟”已经出了该系列文章,今天我们简单搭建一下(详细的步骤可以参考架构实战篇(一)-Spring Boot+MyBatis基础架构搭建)
基于开发工具(IntelliJ IDEA),创建名为zkboot的Maven工程
项目目录
pom.xml
<?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>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>1.5.10.RELEASE</version>
</parent>
<modelVersion>4.0.0</modelVersion>
<groupId>com.itunion.zkboot</groupId>
<artifactId>zkboot</artifactId>
<version>1.0-SNAPSHOT</version>
<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
<java.version>1.8</java.version>
<maven.test.skip>true</maven.test.skip>
<aliyun.oss.version>3.1.0</aliyun.oss.version>
</properties>
<repositories>
<repository>
<id>clojars</id>
<url>http://clojars.org/repo/</url>
</repository>
</repositories>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-devtools</artifactId>
<scope>runtime</scope>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.apache.zookeeper</groupId>
<artifactId>zookeeper</artifactId>
<version>3.4.12</version>
</dependency>
<dependency>
<groupId>org.apache.commons</groupId>
<artifactId>commons-io</artifactId>
<version>1.3.2</version>
</dependency>
<dependency>
<groupId>org.apache.commons</groupId>
<artifactId>commons-lang3</artifactId>
<version>3.4</version>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-thymeleaf</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
</dependencies>
<build>
<finalName>zkboot</finalName>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
<!-- 打war包用,maven打包的时候告诉maven不需要web.xml,否刚会报找不到web.xml错误 -->
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-war-plugin</artifactId>
<version>2.1.1</version>
<configuration>
<failOnMissingWebXml>false</failOnMissingWebXml>
</configuration>
</plugin>
</plugins>
</build></project>
备注:groupId、artifactId 根据自己需要修改
application.properties
#设置服务端口
server.port=8089
server.context-path=/zkboot
Application 启动入口
package com.itunion.zkboot;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.boot.web.support.SpringBootServletInitializer;
/** * 启动入口 * @author lin * @date 2018年06月05日14:21:49 */@SpringBootApplicationpublic class Application extends SpringBootServletInitializer {
public static void main(String[] args) throws Exception {
SpringApplication.run(Application.class, args);
}
}
RestZkController 获取设置的zookeeper node节点信息方法
package com.itunion.zkboot.web.controller;
import org.apache.zookeeper.WatchedEvent;
import org.apache.zookeeper.Watcher;
import org.apache.zookeeper.ZooKeeper;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.RestController;/** * Created by lin on 2018年06月05日14:23:36 */
@RestControllerpublic class RestZkController {
@RequestMapping(value = "/zkGet",method = RequestMethod.GET)
public String zkGet(){
Watcher watcher= new Watcher(){
public void process(WatchedEvent event) {
System.out.println("receive event:"+event);
}
};
String value = null;
try {
final ZooKeeper zookeeper = new ZooKeeper("127.0.0.1:2181", 999999, watcher);
final byte[] data = zookeeper.getData("/node_1", watcher, null);
value = new String(data);
zookeeper.close();
}catch(Exception e){
e.printStackTrace();
}
return "获取 node_1 节点值为 [" + value + "]";
}
}
启动项目并测试
访问地址:http://127.0.0.1:8089/zkboot/zkGet
备注:大家要保证 zookeeper 服务正常启动,并且创建了node_1 节点和值,如果没有可以参考上一篇文章!
执行结果
备注
简单的SpringBoot集成zookeeper已经完成了,如果可以深入了解可以继续自行深入学习。
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