SpringCloud：SpringBoot整合SpringCloud項目

本文轉載自查看原文 2020-03-23 22:56 7952 1-1-SpringCloud

划分模塊

這里我划分了四個模塊

Common:　存放bean和Dao模塊

Consumer:　消費者模塊，提供對外暴露接口服務

EurekaServer:　Eureka注冊中心模塊，主要用於啟動注冊中心

Provider:　提供者模塊，提供業務實現給消費者調用

依賴jar包

整合boot+cloud項目Maven依賴jar包,由於所有的bean都在Common模塊內，所以我把jar包依賴全部放在此模塊內，其他模塊只需要引用即可。

<?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">
    <artifactId>Common</artifactId>
    <groupId>com.boot</groupId>
    <version>1.0-SNAPSHOT</version>
    <packaging>jar</packaging>

    <modelVersion>4.0.0</modelVersion>
    <name>Common</name>

    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>1.5.6.RELEASE</version>
        <relativePath/>
    </parent>

    <properties>
        <mybatis-spring-boot>1.3.2</mybatis-spring-boot>
    </properties>

    <!-- SpringCloud-dependencies版本管理 -->
    <dependencyManagement>
        <dependencies>
            <dependency>
                <groupId>org.springframework.cloud</groupId>
                <artifactId>spring-cloud-dependencies</artifactId>
                <version>Edgware.SR5</version>
                <type>pom</type>
                <scope>import</scope>
            </dependency>
        </dependencies>
    </dependencyManagement>

    <dependencies>
        <!-- mybatis -->
        <dependency>
            <groupId>org.mybatis.spring.boot</groupId>
            <artifactId>mybatis-spring-boot-starter</artifactId>
            <version>${mybatis-spring-boot}</version>
        </dependency>
        <dependency>
            <groupId>org.mybatis.generator</groupId>
            <artifactId>mybatis-generator-core</artifactId>
            <version>1.3.5</version>
        </dependency>
        <!-- Springboot-test -->
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-test</artifactId>
            <scope>test</scope>
        </dependency>
        <!-- Springboot-aop -->
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-aop</artifactId>
        </dependency>
        <!-- Springboot-web -->
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>
        <!-- Springboot-jdbc -->
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-jdbc</artifactId>
        </dependency>
        <!-- Springboot-activemq監控包 -->
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-activemq</artifactId>
        </dependency>
        <!--lombok-->
        <dependency>
            <groupId>org.projectlombok</groupId>
            <artifactId>lombok</artifactId>
            <version>1.16.10</version>
        </dependency>
        <!-- SpringCloud-eureka注冊中心 -->
        <dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-starter-netflix-eureka-client</artifactId>
            <version>1.4.6.RELEASE</version>
        </dependency>
        <!-- SpringCloud-eureka注冊中心 -->
        <dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-starter-eureka-server</artifactId>
            <version>1.4.6.RELEASE</version>
        </dependency>
        <!-- SpringCloud-feign服務調用 -->
        <dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-starter-openfeign</artifactId>
            <version>1.4.6.RELEASE</version>
        </dependency>
        <!-- SpringCloud -->
        <dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-starter</artifactId>
            <version>1.3.5.RELEASE</version>
        </dependency>

    </dependencies>

</project>

博主在整合生產版本時，遇到很多問題，故整理如下jar包依賴pom文件，供大家參考。

 <dependencies>

        <!-- mybatis -->
        <dependency>
            <groupId>org.mybatis.spring.boot</groupId>
            <artifactId>mybatis-spring-boot-starter</artifactId>
            <version>${mybatis-spring-boot}</version>
        </dependency>
        <dependency>
            <groupId>org.mybatis.generator</groupId>
            <artifactId>mybatis-generator-core</artifactId>
            <version>1.3.5</version>
        </dependency>

        <!-- Springboot-test -->
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-test</artifactId>
            <scope>test</scope>
        </dependency>

        <!-- Springboot-aop -->
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-aop</artifactId>
        </dependency>

        <!-- Springboot-web -->
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>

        <!-- Springboot-jdbc -->
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-jdbc</artifactId>
        </dependency>

        <!-- SpringCloud-eureka注冊中心 -->
        <dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-starter-eureka</artifactId>
            <version>1.3.4.RELEASE</version>
        </dependency>

        <!-- SpringCloud-netflix 核心包 -->
        <dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-netflix-core</artifactId>
            <version>1.4.4.RELEASE</version>
        </dependency>

        <!-- SpringCloud-feign服務調用 -->
        <dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-starter-openfeign</artifactId>
            <version>1.4.6.RELEASE</version>
        </dependency>

        <!-- SpringCloud-feign服務調用 -->
        <dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-starter-feign</artifactId>
            <version>1.3.4.RELEASE</version>
        </dependency>

        <!-- SpringCloud -->
        <dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-starter</artifactId>
            <version>1.3.5.RELEASE</version>
        </dependency>


    </dependencies>

創建注冊中心啟動類

引用Common依賴jar包

<dependencies>
        <dependency>
            <groupId>com.boot</groupId>
            <artifactId>Common</artifactId>
            <version>1.0-SNAPSHOT</version>
        </dependency>
    </dependencies>

編寫啟動類

package com.boot.eurekaServer;

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.EnableAutoConfiguration;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.boot.autoconfigure.jdbc.DataSourceAutoConfiguration;
import org.springframework.cloud.netflix.eureka.server.EnableEurekaServer;


@EnableEurekaServer
@EnableAutoConfiguration(exclude={DataSourceAutoConfiguration.class})
@SpringBootApplication
public class EurekaServerApplication {

    public static void main(String[] args){
        System.out.println(">>>>>>>>>>>>>>> 啟動EurekaServer <<<<<<<<<<<<<<<");
        SpringApplication.run(EurekaServerApplication.class, args);
        System.out.println(">>>>>>>>>>>>>>> 運行EurekaServer成功 <<<<<<<<<<<<<<<");
    }
}

@EnableEurekaServer : 表示用來激活Eureka Server相關的配置，啟動注冊中心

application.properties配置文件:

#服務端口號
server.port=8001
#服務名稱
spring.application.name=eureka-server
#服務地址
eureka.instance.hostname=localhost
#禁用eureka注冊自己
#Eureka是為注冊中心,是否需要將自己注冊到注冊中心上(默認為true),
#本次位單機部署,不需要設置為true;但是注冊中心集群時候必須為true;因為集群時，其他Eureka需要從此Eureka中的節點上獲取數據；
eureka.client.register-with-eureka=false
#Erueka是為注冊中心，不需要檢索服務信息;
#(表示是否從Eureka Server獲取注冊信息，默認為true。如果這是一個單點的 Eureka Server，不需要同步其他節點的數據，可以設為false)
eureka.client.fetch-registry=false
#關閉保護機制
eureka.server.enable-self-preservation=false
#標注其它服務注冊的目標地址
eureka.client.serviceUrl.defaultZone=http://${eureka.instance.hostname}:${server.port}/eureka/

重點：

該警告是觸發了Eureka Server的自我保護機制。Eureka Server在運行期間，會統計心跳失敗的比例在15分鍾之內是否低於85%，如果低於，就會將當前實例注冊信息保護起來，讓實例不會過期，盡可能保護這些注冊信息。但是如果在保護期間，實例出現問題，那么客戶端很容易拿到實際已經不存在的服務實例，會出現調用失敗。這個時候客戶端的容錯機制就很重要了。（重新請求，斷路器）保護機制，可能會導致服務實例不能夠被正確剔除，可以關掉保護機制。

創建提供者啟動類

引用Common依賴jar包

<dependencies>
        <dependency>
            <groupId>com.boot</groupId>
            <artifactId>Common</artifactId>
            <version>1.0-SNAPSHOT</version>
        </dependency>
    </dependencies>

編寫啟動類

package com.boot.provider;

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.EnableAutoConfiguration;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.boot.autoconfigure.jdbc.DataSourceAutoConfiguration;
import org.springframework.cloud.netflix.eureka.EnableEurekaClient;


/**
 * 
 * @EnableEurekaClient : 負責與Eureka Server 配合向外提供注冊與發現服務接口
 */
@EnableEurekaClient
@EnableAutoConfiguration(exclude={DataSourceAutoConfiguration.class})
@SpringBootApplication
public class ProviderServerApplication {

    public static void main(String[] args){
        System.out.println(">>>>>>>>>>>>>>> 啟動ProviderServer <<<<<<<<<<<<<<<");
        SpringApplication.run(ProviderServerApplication.class, args);
        System.out.println(">>>>>>>>>>>>>>> 運行ProviderServer成功 <<<<<<<<<<<<<<<");
    }
}

編寫業務實現類

package com.boot.provider.controller;

import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;

/**
 *Feign遠程服務調用與正常暴露接口是一樣的，所以我們只需要仿照接口暴露編寫即可
 */
@RestController
@RequestMapping("/Provider")
public class ProviderServerController {

    @RequestMapping("/gotoAlgorithmServer")
    public String gotoAlgorithmServer(){
        return "調用Provider成功";
    }
}

application.properties配置文件：

#指定提供者名稱(消費者通過此名稱遠程訪問服務)
spring.application.name=eureka-provider
#端口號
server.port=8003
#服務注冊地址(注冊中心的服務注冊地址)
eureka.client.serviceUrl.defaultZone = http://localhost:8001/eureka/

創建消費者啟動類

引用Common依賴jar包

<dependencies>
        <dependency>
            <groupId>com.boot</groupId>
            <artifactId>Common</artifactId>
            <version>1.0-SNAPSHOT</version>
        </dependency>
    </dependencies>

編寫啟動類

package com.boot.consumer;

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.EnableAutoConfiguration;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.boot.autoconfigure.jdbc.DataSourceAutoConfiguration;
import org.springframework.cloud.netflix.eureka.EnableEurekaClient;
import org.springframework.cloud.netflix.feign.EnableFeignClients;

/**
 * @EnableFeignClients 啟動feign客戶端
 * @EnableEurekaClient 負責與 Eureka Server 配合向外提供注冊與發現服務接口
 */
@EnableFeignClients
@EnableEurekaClient
@EnableAutoConfiguration(exclude={DataSourceAutoConfiguration.class})
@SpringBootApplication
public class ConsumerServerApplication {

    public static void main(String[] args){
        System.out.println(">>>>>>>>>>>>>>> 啟動ConsumerServer <<<<<<<<<<<<<<<");
        SpringApplication.run(ConsumerServerApplication.class, args);
        System.out.println(">>>>>>>>>>>>>>> 運行ConsumerServer成功 <<<<<<<<<<<<<<<");
    }
}

編寫暴露接口服務類

package com.boot.consumer.controller;

import com.boot.consumer.service.ConsumerService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;

@RestController
@RequestMapping("/Consumer")
public class ConsumerServerController {

    @Autowired
    public ConsumerService consumerService;

    @RequestMapping("/gotoAlgorithmServer")
    public String gotoAlgorithmServer(){
        return consumerService.gotoAlgorithmServer();
    }
}

編寫Feign調用接口

package com.boot.consumer.service;

import org.springframework.cloud.netflix.feign.FeignClient;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;

/**
 *@FeignClient : feign客戶端
 * name屬性 ：提供者的服務名稱 */
@FeignClient(name = "eureka-provider")
public interface ConsumerService {

    @RequestMapping(method = RequestMethod.GET ,path = "/Provider/gotoAlgorithmServer")
    String gotoAlgorithmServer();
}

application.properties配置文件：

#消費者名稱
spring.application.name=eureka-consumer
#端口
server.port=8002
#注冊中心地址
eureka.client.serviceUrl.defaultZone = http://localhost:8001/eureka/
#設置連接超時
feign.client.config.default.connect-timeout = 10000
#設置讀取超時
feign.client.config.default.read-timeout = 600000

測試

成功！

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