配置Zookeeper、Dubbox
2019-03-12 08:22:12来源:博客园 阅读 ()
CentOS的配置:
1.给CentOS安装Zookeeper:
网络配置成仅主机
上传tar.gz:比如用FTP
tar -xvzf ...
cd zookeeper
mkdir data
cd conf
mv zoo_sample.cfg zoo.cfg
vi zoo.cfg
修改这一行:
dataDir=/soft/zookeeper-3.4.6/data
然后就可以运行了:
cd bin
./zkServer.sh start
下面做一个最基本的Demo,返回一个固定的名称即可:
服务提供方:
Maven新建项目:
搭建一个基本的Maven架构:
目录结构:
pom.xml:
<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>org.dreamtech.demo</groupId> <artifactId>dubboxdemo-service</artifactId> <version>0.0.1-SNAPSHOT</version> <packaging>war</packaging> <properties> <spring.version>4.2.4.RELEASE</spring.version> </properties> <dependencies> <!-- Spring --> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-context</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-webmvc</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-aspects</artifactId> <version>${spring.version}</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-jms</artifactId> <version>${spring.version}</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-context-support</artifactId> <version>${spring.version}</version> </dependency> <!-- dubbo相关 --> <dependency> <groupId>com.alibaba</groupId> <artifactId>dubbo</artifactId> <version>2.8.4</version> </dependency> <dependency> <groupId>org.apache.zookeeper</groupId> <artifactId>zookeeper</artifactId> <version>3.4.6</version> </dependency> <dependency> <groupId>com.github.sgroschupf</groupId> <artifactId>zkclient</artifactId> <version>0.1</version> </dependency> <dependency> <groupId>javassist</groupId> <artifactId>javassist</artifactId> <version>3.11.0.GA</version> </dependency> </dependencies> <build> <plugins> <plugin> <groupId>org.apache.maven.plugins</groupId> <artifactId>maven-compiler-plugin</artifactId> <version>2.3.2</version> <configuration> <source>1.7</source> <target>1.7</target> </configuration> </plugin> <plugin> <groupId>org.apache.tomcat.maven</groupId> <artifactId>tomcat7-maven-plugin</artifactId> <configuration> <!-- 指定端口 --> <port>8081</port> <!-- 请求路径 --> <path>/</path> </configuration> </plugin> </plugins> </build> </project>
新建web-inf目录然后加入web.xml:
<?xml version="1.0" encoding="UTF-8"?> <web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://java.sun.com/xml/ns/javaee" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" version="2.5"> <!-- 加载spring容器 --> <context-param> <param-name>contextConfigLocation</param-name> <param-value>classpath:applicationContext*.xml</param-value> </context-param> <listener> <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class> </listener> </web-app>
然后Spring配置文件applicationxxx.xml,先写一个空架子:
<?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:p="http://www.springframework.org/schema/p" xmlns:context="http://www.springframework.org/schema/context" xmlns:dubbo="http://code.alibabatech.com/schema/dubbo" xmlns:mvc="http://www.springframework.org/schema/mvc" xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc.xsd http://code.alibabatech.com/schema/dubbo http://code.alibabatech.com/schema/dubbo/dubbo.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd"> </beans>
正式开始写个Demo:
package org.dreamtech.demo.service; public interface UserService { public String getName(); }
package org.dreamtech.demo.service.impl; import org.dreamtech.demo.service.UserService; import com.alibaba.dubbo.config.annotation.Service; @Service public class UserServiceImpl implements UserService { @Override public String getName() { return "dreamtech"; } }
修改配置文件:zookeeper配为CentOS的IP
<?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:p="http://www.springframework.org/schema/p" xmlns:context="http://www.springframework.org/schema/context" xmlns:dubbo="http://code.alibabatech.com/schema/dubbo" xmlns:mvc="http://www.springframework.org/schema/mvc" xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc.xsd http://code.alibabatech.com/schema/dubbo http://code.alibabatech.com/schema/dubbo/dubbo.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd"> <dubbo:application name="dubboxdemo-service"/> <dubbo:registry address="zookeeper://192.168.25.100:2181"/> <dubbo:annotation package="org.dreamtech.demo.service.impl"/> </beans>
运行:Maven Build
运行之后,需要再配置服务消费方
和上边一样的新建方式,不过取名为dubboxdemo-web
pom.xml文件有一个地方不一致,需要注意:
<plugin> <groupId>org.apache.tomcat.maven</groupId> <artifactId>tomcat7-maven-plugin</artifactId> <configuration> <!-- 指定端口 --> <port>8082</port> <!-- 请求路径 --> <path>/</path> </configuration> </plugin>
web.xml配置就不一样了,需要SpringMVC的东西:
<?xml version="1.0" encoding="UTF-8"?> <web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://java.sun.com/xml/ns/javaee" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" version="2.5"> <!-- 解决post乱码 --> <filter> <filter-name>CharacterEncodingFilter</filter-name> <filter-class>org.springframework.web.filter.CharacterEncodingFilter</filter-class> <init-param> <param-name>encoding</param-name> <param-value>utf-8</param-value> </init-param> <init-param> <param-name>forceEncoding</param-name> <param-value>true</param-value> </init-param> </filter> <filter-mapping> <filter-name>CharacterEncodingFilter</filter-name> <url-pattern>/*</url-pattern> </filter-mapping> <servlet> <servlet-name>springmvc</servlet-name> <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class> <!-- 指定加载的配置文件 ,通过参数contextConfigLocation加载 --> <init-param> <param-name>contextConfigLocation</param-name> <param-value>classpath:springmvc.xml</param-value> </init-param> </servlet> <servlet-mapping> <servlet-name>springmvc</servlet-name> <url-pattern>*.do</url-pattern> </servlet-mapping> </web-app>
然后就是在src/main/resources中写入SpringMVC的配置文件:
<?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:p="http://www.springframework.org/schema/p" xmlns:context="http://www.springframework.org/schema/context" xmlns:dubbo="http://code.alibabatech.com/schema/dubbo" xmlns:mvc="http://www.springframework.org/schema/mvc" xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc.xsd http://code.alibabatech.com/schema/dubbo http://code.alibabatech.com/schema/dubbo/dubbo.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd"> <mvc:annotation-driven > <mvc:message-converters register-defaults="false"> <bean class="org.springframework.http.converter.StringHttpMessageConverter"> <constructor-arg value="UTF-8" /> </bean> </mvc:message-converters> </mvc:annotation-driven> </beans>
接下来就是编码:
目录结构如下
package org.dreamtech.demo.controller; import org.dreamtech.demo.service.UserService; import org.springframework.stereotype.Controller; import org.springframework.web.bind.annotation.RequestMapping; import org.springframework.web.bind.annotation.ResponseBody; import com.alibaba.dubbo.config.annotation.Reference; @Controller @RequestMapping("/user") public class UserController { @Reference private UserService userService; @RequestMapping("/showName") @ResponseBody public String showName(){ return userService.getName(); } }
package org.dreamtech.demo.service; public interface UserService { public String getName(); }
注意,只是复制过来了接口,没有复制实现类
SpringMVC配置稍作修改:
<?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:p="http://www.springframework.org/schema/p" xmlns:context="http://www.springframework.org/schema/context" xmlns:dubbo="http://code.alibabatech.com/schema/dubbo" xmlns:mvc="http://www.springframework.org/schema/mvc" xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc.xsd http://code.alibabatech.com/schema/dubbo http://code.alibabatech.com/schema/dubbo/dubbo.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd"> <mvc:annotation-driven> <mvc:message-converters register-defaults="false"> <bean class="org.springframework.http.converter.StringHttpMessageConverter"> <constructor-arg value="UTF-8" /> </bean> </mvc:message-converters> </mvc:annotation-driven> <dubbo:application name="dubboxdemo-web" /> <dubbo:registry address="zookeeper://192.168.25.100:2181" /> <dubbo:annotation package="org.dreamtech.demo.controller" /> </beans>
接下来开始测试:
首先要确保CentOS服务器的Zookeeper正常运行
然后先启动服务提供方
再启动服务消费方
访问http://localhost:8082/user/showName
实际上,遇到了三个大坑,查阅很多资料之后才解决:
1.CentOS端口并没有开放,开启命令如下:
firewall-cmd --add-port=2181/tcp
验证是否成功开启:
firewall-cmd --query-port=2181/tcp
2.注意这个类,这里的@Service注解不能导入Spring的!
package org.dreamtech.demo.service.impl; import org.dreamtech.demo.service.UserService; import com.alibaba.dubbo.config.annotation.Service; @Service public class UserServiceImpl implements UserService { @Override public String getName() { return "dreamtech"; } }
3.JDK版本必须是1.7,如果是1.8可能会报错
正确情况如下:
Dubbox管理中心部署:
使用MVN命令对源码进行编译:
mvn package -Dmaven.skip.test=true
编译后得到一个dubbo-admin.war
在CentOS上部署Tomcat,并在webapps放入dubbo-admin.war
启动Tomcat: ./startup.sh
开防火墙:
firewall-cmd --add-port=8080/tcp
后来发现这个dubbo-admin无法运行
排错之后发现是Linux的JDK版本太高
降低版本,之前在etc/profile里面export的是一个软链接,所以直接删掉软链接再新建就像
这样就可以方便地在JDK1.7到1.8之间切换
一切配完,就可以打开[CentOS IP]/dubbo-admin
输入默认账户名,密码root,进入,即可查看详情:
原文链接:https://www.cnblogs.com/xuyiqing/p/10512755.html
如有疑问请与原作者联系
标签:
版权申明:本站文章部分自网络,如有侵权,请联系:west999com@outlook.com
特别注意:本站所有转载文章言论不代表本站观点,本站所提供的摄影照片,插画,设计作品,如需使用,请与原作者联系,版权归原作者所有
上一篇:JAVA多线程-初体验
- springboot2配置JavaMelody与springMVC配置JavaMelody 2020-06-11
- nacos~配置中心功能~springboot的支持 2020-06-10
- Maven安装与配置 2020-06-09
- Dubbo+Zookeeper集群案例 2020-06-09
- Spring Boot 实现配置文件加解密原理 2020-06-08
IDC资讯: 主机资讯 注册资讯 托管资讯 vps资讯 网站建设
网站运营: 建站经验 策划盈利 搜索优化 网站推广 免费资源
网络编程: Asp.Net编程 Asp编程 Php编程 Xml编程 Access Mssql Mysql 其它
服务器技术: Web服务器 Ftp服务器 Mail服务器 Dns服务器 安全防护
软件技巧: 其它软件 Word Excel Powerpoint Ghost Vista QQ空间 QQ FlashGet 迅雷
网页制作: FrontPages Dreamweaver Javascript css photoshop fireworks Flash