springCloud搭建（1）

小灰灰 2022-10-02 13:45 159阅读 0赞

在学习springCloud时，首先得搭建springCloud，现在我们就开始搭建我们的第一个springCloud工程吧

1.首先 新建一个maven工程，如何搭建maven工程 这里就不做描述了，我们开始引入jar包：

<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/maven-v4_0_0.xsd">
    	<modelVersion>4.0.0</modelVersion>
    	<groupId>com.sf.framework.user</groupId>
    	<artifactId>sf-framework-user</artifactId>
    	<packaging>jar</packaging>
    	<name>sf-framework-user</name>
    	<version>1.0.0</version>
    	<properties>
    		<java.version>1.8</java.version>
    		<maven.compiler.source>${java.version}</maven.compiler.source>
    		<maven.compiler.target>${java.version}</maven.compiler.target>
    		<springfox-version>2.7.0</springfox-version>
    		<kotlin.version>1.1.51</kotlin.version>
    		<gateway.version>2.0.0.M5</gateway.version>
    		<spring-cloud.version>Finchley.RELEASE</spring-cloud.version>
    		<myabtis.version>3.4.1</myabtis.version>
    	</properties>
    	<parent>
    		<groupId>org.springframework.boot</groupId>
    		<artifactId>spring-boot-starter-parent</artifactId>
    		<version>2.0.3.RELEASE</version>
    	</parent>
    	<build>
    		<sourceDirectory>src/main/java</sourceDirectory>
    		<plugins>
    			<plugin>
    				<groupId>org.springframework.boot</groupId>
    				<artifactId>spring-boot-maven-plugin</artifactId>
    				<executions>
    					<execution>
    						<goals>
    							<goal>repackage</goal>
    						</goals>
    					</execution>
    				</executions>
    			</plugin>
    		</plugins>
    		<resources>
    			<resource>
    				<directory>src/main/java</directory>
    				<includes>
    					<include>**/*.xml</include>
    					<include>**/*.properties</include>
    				</includes>
    				<filtering>true</filtering>
    			</resource>
    			<resource>
    				<directory>src/main/resources</directory>
    				<includes>
    					<include>**/*.xml</include>
    					<include>**/*.properties</include>
    				</includes>
    				<filtering>true</filtering>
    			</resource>
    		</resources>
    
    	</build>
    	<dependencies>
    	
    	  
    <dependency>
        <groupId>org.projectlombok</groupId>
        <artifactId>lombok</artifactId>
        <version>1.18.8</version>
        <scope>provided</scope>
    </dependency>
    	  
    	
    	   
    	   <dependency>
                <groupId>org.springframework.cloud</groupId>
                <artifactId>spring-cloud-starter-feign</artifactId>
                <version>1.4.7.RELEASE</version>
           </dependency>
           
           <dependency>
                <groupId>org.springframework.cloud</groupId>
                <artifactId>spring-cloud-starter-hystrix</artifactId>
                <version>1.4.7.RELEASE</version>
            </dependency>
            <dependency>
    	        <groupId>org.springframework.cloud</groupId>
    	        <artifactId>spring-cloud-starter-hystrix-dashboard</artifactId>
    	        <version>1.4.7.RELEASE</version>
    	    </dependency> 
    	    
    	   
    
    		<dependency>
    			<groupId>junit</groupId>
    			<artifactId>junit</artifactId>
    			<version>3.8.1</version>
    			<scope>test</scope>
    		</dependency>
    
    		
    		<dependency>
    			<groupId>redis.clients</groupId>
    			<artifactId>jedis</artifactId>
    			<version>3.0.1</version>
    		</dependency>
    		
    		<dependency>
    			<groupId>org.mybatis</groupId>
    			<artifactId>mybatis</artifactId>
    			<version>${myabtis.version}</version>
    		</dependency>
    		<dependency>
    			<groupId>mysql</groupId>
    			<artifactId>mysql-connector-java</artifactId>
    		</dependency>
    		<dependency>
    			<groupId>com.alibaba</groupId>
    			<artifactId>druid</artifactId>
    			<version>1.0.14</version>
    		</dependency>
    
    		
    		<dependency>
    			<groupId>org.springframework.cloud</groupId>
    			<artifactId>spring-cloud-starter-consul-discovery</artifactId>
    		</dependency>
    
    		<dependency>
    			<groupId>org.springframework.boot</groupId>
    			<artifactId>spring-boot-starter-actuator</artifactId>
    		</dependency>
    
    		<dependency>
    			<groupId>org.springframework.boot</groupId>
    			<artifactId>spring-boot-starter-web</artifactId>
    		</dependency>
    
    		<dependency>
    			<groupId>org.springframework.boot</groupId>
    			<artifactId>spring-boot-starter-tomcat</artifactId>
    		</dependency>
    		
    		<dependency>
    			<groupId>io.springfox</groupId>
    			<artifactId>springfox-swagger2</artifactId>
    			<version>${springfox-version}</version>
    		</dependency>
    		<dependency>
    			<groupId>io.springfox</groupId>
    			<artifactId>springfox-swagger-ui</artifactId>
    			<version>${springfox-version}</version>
    		</dependency>
    
    		<dependency>
    			<groupId>com.github.joschi.jackson</groupId>
    			<artifactId>jackson-datatype-threetenbp</artifactId>
    			<version>2.6.4</version>
    		</dependency>
    		
    		<dependency>
    			<groupId>javax.validation</groupId>
    			<artifactId>validation-api</artifactId>
    		</dependency>
    		<dependency>
    			<groupId>org.springframework.boot</groupId>
    			<artifactId>spring-boot-starter-test</artifactId>
    			<scope>test</scope>
    		</dependency>
    
    		
    		<dependency>
    			<groupId>org.apache.commons</groupId>
    			<artifactId>commons-lang3</artifactId>
    			<version>3.9</version>
    		</dependency>
    
    		
    		<dependency>
    			<groupId>org.apache.directory.studio</groupId>
    			<artifactId>org.apache.commons.io</artifactId>
    			<version>2.4</version>
    		</dependency>
    
    		
    		<dependency>
    			<groupId>commons-beanutils</groupId>
    			<artifactId>commons-beanutils</artifactId>
    			<version>1.9.3</version>
    		</dependency>
    
    		<dependency>
    			<groupId>com.fasterxml.jackson.jaxrs</groupId>
    			<artifactId>jackson-jaxrs-xml-provider</artifactId>
    			<version>2.5.0</version>
    		</dependency>
    
    
    		
    		
    		<dependency>
    			<groupId>com.github.pagehelper</groupId>
    			<artifactId>pagehelper</artifactId>
    			<version>4.1.4</version>
    		</dependency>
    
    
    
    	</dependencies>
    
    	<dependencyManagement>
    		<dependencies>
    			<dependency>
    				<groupId>org.springframework.cloud</groupId>
    				<artifactId>spring-cloud-dependencies</artifactId>
    				<version>${spring-cloud.version}</version>
    				<type>pom</type>
    				<scope>import</scope>
    			</dependency>
    		</dependencies>
    	</dependencyManagement>
    
    </project>

2.写springCloud需要的yml文件，命名为application.yml文件，我们这里的配置是针对consul的：

#程序启动端口
    server:
      port: 9001
    spring:
      application:
        name: fegin-user
      cloud:
        #consule注册中心的地址
        consul:
          host: localhost
          port: 8500
          discovery:
            instance-id= ${spring.application.name}:${server.port}
    #        serviceName: fegin-user
    #        healthCheckPath: ${management.context-path}/health
    #        healthCheckInterval: 15s

3.编写启动类，加入注解

package com.sf.framework;
    
    import org.springframework.boot.SpringApplication;
    import org.springframework.boot.autoconfigure.SpringBootApplication;
    import org.springframework.boot.builder.SpringApplicationBuilder;
    import org.springframework.cloud.client.circuitbreaker.EnableCircuitBreaker;
    import org.springframework.cloud.client.discovery.EnableDiscoveryClient;
    //import org.springframework.cloud.netflix.feign.EnableFeignClients;
    import org.springframework.cloud.netflix.hystrix.EnableHystrix;
    import org.springframework.cloud.netflix.hystrix.dashboard.EnableHystrixDashboard;
    import org.springframework.web.bind.annotation.RestController;
    
    @SpringBootApplication
    @EnableDiscoveryClient
    @RestController
    @EnableCircuitBreaker
    @EnableHystrix
    @EnableHystrixDashboard
    @org.springframework.cloud.openfeign.EnableFeignClients
    public class UserApplication {
    	public static void main(String[] args) {
    		new SpringApplicationBuilder(UserApplication.class).web(true).run(args);
        }
    }

4.编写controller类：

package com.sf.framework.user.controller;
    
    import java.util.HashMap;
    import java.util.Map;
    
    import org.springframework.beans.factory.annotation.Autowired;
    import org.springframework.web.bind.annotation.RequestMapping;
    import org.springframework.web.bind.annotation.RequestMethod;
    import org.springframework.web.bind.annotation.RestController;
    
    import com.netflix.hystrix.contrib.javanica.annotation.HystrixCommand;
    import com.sf.framework.user.feignclient.VehicleClient;
    
    @RestController
    public class UserController {
    
    	@Autowired
        private VehicleClient vehicleClient;
    	
    	
        @RequestMapping(value = "/getUserInfo",method = RequestMethod.GET)
        @HystrixCommand(fallbackMethod = "hiError")
        public Object getUserInfo(){
        	Map<String,Object> resultMap = new HashMap<>();
        	resultMap.put("name", "张三");
        	resultMap.put("vehicle", vehicleClient.getVehiclePalteNo("1"));
            return resultMap;
        }
    
        @RequestMapping(value = "/getVehiclePalteNo",method = RequestMethod.GET)
        public String getVehiclePalteNo(){
            return vehicleClient.getVehiclePalteNo("1");
        }
        
        public String hiError() {
            return "sorry,error!";
        }
    }

5.启动启动类，以java application的方式启动，这样 就能完成一个简单的springCloud的工程了