• 第三章、注册中心-Zookeeper(实例1)

    1.新建Model不使用maven框架

    2.User类

    1. package com.it.dubbo.entity;
    2.  
    3. import java.io.Serializable;
    4.  
    5. public class User implements Serializable {
    6.    private Integer id;
    7.    private String name;
    8.  
    9.     @Override
    10.     public String toString() {
    11.         return "User{" +
    12.                 "id=" + id +
    13.                 ", name='" + name + '\'' +
    14.                 '}';
    15.     }
    16.  
    17.     public Integer getId() {
    18.         return id;
    19.     }
    20.  
    21.     public void setId(Integer id) {
    22.         this.id = id;
    23.     }
    24.  
    25.     public String getName() {
    26.         return name;
    27.     }
    28.  
    29.     public void setName(String name) {
    30.         this.name = name;
    31.     }
    32. }

    3.UserService

    1. package com.it.dubbo.service;
    2.  
    3. import com.it.dubbo.entity.User;
    4.  
    5. public interface UserService {
    6.     /**
    7.      * 根据用户标识获取用户的信息
    8.      * @param id
    9.      * @return
    10.      */
    11.     User queryUserById(Integer id,String name);
    12. }

    1.新建model使用maven的archetype-webapp的框架

    2.pom.xml文件

    2.  
    3. <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    4.   xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
    5.   <modelVersion>4.0.0modelVersion>
    6.  
    7.   <groupId>com.it.dubbogroupId>
    8.   <artifactId>007-zk-userservice-providerartifactId>
    9.   <version>1.0-SNAPSHOTversion>
    10.   <packaging>warpackaging>
    11.  
    12.     <dependencies>
    13.         
    14.         <dependency>
    15.             <groupId>org.springframeworkgroupId>
    16.             <artifactId>spring-contextartifactId>
    17.             <version>4.3.16.RELEASEversion>
    18.         dependency>
    19.         <dependency>
    20.             <groupId>org.springframeworkgroupId>
    21.             <artifactId>spring-webmvcartifactId>
    22.             <version>4.3.16.RELEASEversion>
    23.         dependency>
    24.         
    25.         <dependency>
    26.             <groupId>com.alibabagroupId>
    27.             <artifactId>dubboartifactId>
    28.             <version>2.6.2version>
    29.         dependency>
    30.         
    31.         <dependency>
    32.             <groupId>com.it.dubbogroupId>
    33.             <artifactId>006-zk-interfaceartifactId>
    34.             <version>1.0-SNAPSHOTversion>
    35.         dependency>
    36.         
    37.         <dependency>
    38.             <groupId>org.apache.curatorgroupId>
    39.             <artifactId>curator-frameworkartifactId>
    40.             <version>4.1.0version>
    41.         dependency>
    42.  
    43.     dependencies>
    44.  
    45.     <build>
    46.         <plugins>
    47.             <plugin>
    48.                 <artifactId>maven-compiler-pluginartifactId>
    49.                 <version>3.1version>
    50.                 <configuration>
    51.                     <source>1.8source>
    52.                     <target>1.8target>
    53.                 configuration>
    54.             plugin>
    55.         plugins>
    56.     build>
    57.  
    58. project>

    3.UserServiceImpl类

    1. package com.it.dubbo.service.impl;
    2.  
    3. import com.it.dubbo.entity.User;
    4. import com.it.dubbo.service.UserService;
    5.  
    6. import java.util.UUID;
    7.  
    8. public class UserServiceImpl implements UserService {
    9.  
    10.     @Override
    11.     public User queryUserById(Integer id, String name) {
    12.         User user = new User();
    13.         user.setId(id);
    14.         user.setName(name);
    15.         return user;
    16.     }
    17. }

    4.dubbo-zk-userservice-provider.xml配置文件

    2. <beans xmlns="http://www.springframework.org/schema/beans"
    3.        xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:dubbo="http://code.alibabatech.com/schema/dubbo"
    4.        xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd http://code.alibabatech.com/schema/dubbo http://code.alibabatech.com/schema/dubbo/dubbo.xsd">
    5.  
    6.     
    7.     <dubbo:application name="007-zk-userservice-provider"/>
    8.     
    9.     <dubbo:protocol name="dubbo" port="20880"/>
    10.     
    11.     <dubbo:registry address="zookeeper://localhost:2181"/>
    12.     
    13.     <dubbo:service interface="com.it.dubbo.service.UserService" ref="userServiceImpl"/>
    14.     
    15.     <bean id="userServiceImpl" class="com.it.dubbo.service.impl.UserServiceImpl"/>
    16.  
    17. beans>

    5.web.xml配置文件

    2. <web-app xmlns="http://xmlns.jcp.org/xml/ns/javaee"
    3.          xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    4.          xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-app_4_0.xsd"
    5.          version="4.0">
    6.     <context-param>
    7.         <param-name>contextConfigLocationparam-name>
    8.         <param-value>classpath:dubbo-zk-userservice-provider.xmlparam-value>
    9.     context-param>
    10.     <listener>
    11.         <listener-class>org.springframework.web.context.ContextLoaderListenerlistener-class>
    12.     listener>
    13.  
    14. web-app>

    1.新建Model使用archetype-webapp框架

    2.pom.xml文件

    2.  
    3. <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    4.   xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
    5.   <modelVersion>4.0.0modelVersion>
    6.  
    7.   <groupId>com.it.dubbogroupId>
    8.   <artifactId>008-zk-consumerartifactId>
    9.   <version>1.0-SNAPSHOTversion>
    10.   <packaging>warpackaging>
    11.  
    12.   <dependencies>
    13.     
    14.     <dependency>
    15.       <groupId>org.springframeworkgroupId>
    16.       <artifactId>spring-contextartifactId>
    17.       <version>4.3.16.RELEASEversion>
    18.     dependency>
    19.     <dependency>
    20.       <groupId>org.springframeworkgroupId>
    21.       <artifactId>spring-webmvcartifactId>
    22.       <version>4.3.16.RELEASEversion>
    23.     dependency>
    24.     
    25.     <dependency>
    26.       <groupId>com.alibabagroupId>
    27.       <artifactId>dubboartifactId>
    28.       <version>2.6.2version>
    29.     dependency>
    30.     
    31.     <dependency>
    32.       <groupId>com.it.dubbogroupId>
    33.       <artifactId>006-zk-interfaceartifactId>
    34.       <version>1.0-SNAPSHOTversion>
    35.     dependency>
    36.     
    37.     <dependency>
    38.       <groupId>org.apache.curatorgroupId>
    39.       <artifactId>curator-frameworkartifactId>
    40.       <version>4.1.0version>
    41.     dependency>
    42.  
    43.   dependencies>
    44.  
    45.   <build>
    46.     <plugins>
    47.       <plugin>
    48.         <artifactId>maven-compiler-pluginartifactId>
    49.         <version>3.1version>
    50.         <configuration>
    51.           <source>1.8source>
    52.           <target>1.8target>
    53.         configuration>
    54.       plugin>
    55.     plugins>
    56.   build>
    57.  
    58. project>

    3.UserController类

    1. package com.it.dubbo.web;
    2.  
    3. import com.it.dubbo.entity.User;
    4. import com.it.dubbo.service.UserService;
    5. import org.springframework.beans.factory.annotation.Autowired;
    6. import org.springframework.stereotype.Controller;
    7. import org.springframework.ui.Model;
    8. import org.springframework.web.bind.annotation.RequestMapping;
    9.  
    10. @Controller
    11. public class UserController {
    12.  
    13.     @Autowired
    14.     private UserService userService;
    15.     @RequestMapping(value = "/userDetail")
    16.     public String userDetail(Integer id,String name, Model model){
    17.         User user = userService.queryUserById(id, name);
    18.         model.addAttribute("user",user);
    19.         return "userDetail";
    20.     }
    21. }

    4.applicationContext.xml配置文件

    2. <beans xmlns="http://www.springframework.org/schema/beans"
    3.        xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    4.        xmlns:context="http://www.springframework.org/schema/context"
    5.        xmlns:mvc="http://www.springframework.org/schema/mvc"
    6.        xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc.xsd">
    7.  
    8.     
    9.     <context:component-scan base-package="com.it.dubbo.web"/>
    10.     
    11.     <mvc:annotation-driven/>
    12.     
    13.     <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
    14.         <property name="prefix" value="/"/>
    15.         <property name="suffix" value=".jsp"/>
    16.     bean>
    17. beans>

    5.dubbo-zk-consumer.xml文件

    2. <beans xmlns="http://www.springframework.org/schema/beans"
    3.        xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:dubbo="http://dubbo.apache.org/schema/dubbo"
    4.        xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd http://dubbo.apache.org/schema/dubbo http://dubbo.apache.org/schema/dubbo/dubbo.xsd">
    5.  
    6.     
    7.     <dubbo:application name="008-zk-consumer"/>
    8.     
    9.     <dubbo:registry address="zookeeper://localhost:2181"/>
    10.     
    11.     <dubbo:reference id="userService" interface="com.it.dubbo.service.UserService"/>
    12. beans>

     6.web.xml文件

    2. <web-app xmlns="http://xmlns.jcp.org/xml/ns/javaee"
    3.          xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    4.          xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-app_4_0.xsd"
    5.          version="4.0">
    6.  
    7.     <servlet>
    8.         <servlet-name>dispatcherServletservlet-name>
    9.         <servlet-class>org.springframework.web.servlet.DispatcherServletservlet-class>
    10.         <init-param>
    11.             <param-name>contextConfigLocationparam-name>
    12.             <param-value>classpath:applicationContext.xml,classpath:dubbo-zk-consumer.xmlparam-value>
    13.         init-param>
    14.     servlet>
    15.     <servlet-mapping>
    16.         <servlet-name>dispatcherServletservlet-name>
    17.         <url-pattern>/url-pattern>
    18.     servlet-mapping>
    19.  
    20. web-app>

    7.userDetail.jsp文件

    1. <%--
    2.   Created by IntelliJ IDEA.
    3.   User: lijianglin
    4.   Date: 2022/8/13
    5.   Time: 8:33
    6.   To change this template use File | Settings | File Templates.
    7. --%>
    8. <%@ page contentType="text/html;charset=UTF-8" language="java" %>
    9. <html>
    10. <head>
    11.     <title>用户详情title>
    12. head>
    13. <body>
    14. <div>用户编号：${user.id}div>
    15. <div>用户姓名：${user.name}div>
    16. body>
    17. html>

    服务器配置

    功能测试：

    1. 先启动注册中心
    2. 再启动 tomcat 服务器
    3. 访问 008-zk-consumer的userDetail.jsp

     

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  • 原文地址：https://blog.csdn.net/weixin_59334478/article/details/126314655