SpringCloud教程十：Zuul+Mysql实现动态路由

冷不防 2021-09-14 18:24 510阅读 0赞

实际开发中随着服务的增多，通过配置来设置zuul的路由就会变的很麻烦，给运维带来很大的不变，这里我们通过数据库获取的方式来实现动态路由的配置：

首先sql:

CREATE TABLE `gateway_api_define` (
      `id` VARCHAR(50) NOT NULL,
      `path` VARCHAR(255) NOT NULL,
      `service_id` VARCHAR(50) DEFAULT NULL,
      `url` VARCHAR(255) DEFAULT NULL,
      `retryable` TINYINT(1) DEFAULT NULL,
      `enabled` TINYINT(1) NOT NULL,
      `strip_prefix` INT(11) DEFAULT NULL,
      `api_name` VARCHAR(255) DEFAULT NULL,
      PRIMARY KEY (`id`)
    ) ENGINE=INNODB DEFAULT CHARSET=utf8

配置文件;

server.port=7084 spring.application.name=zuul-server eureka.instance.hostname=peer1 #注册服务地址 eureka.client.service-url.defaultZone=http://peer1:7082/eureka/,http://peer2:7082/eureka/ #启用shutdown endpoints.shutdown.enabled=true #禁用/开启密码验证 endpoints.shutdown.sensitive=false #使用OkHttpClient的API来调用集群服务 #ribbon.okhttp.enabled=true #这里的配置表示，访问/it/** #zuul.routes.service-hi.path=/test/** #直接重定向到 #zuul.routes.service-hi.serviceId=SERVICE-HI # 续约更新时间间隔（默认30秒） eureka.instance.lease-renewal-interval-in-seconds=5 # 续约到期时间（默认90秒） eureka.instance.lease-expiration-duration-in-seconds=15 # 数据库访问配置 # 主数据源，默认的 spring.datasource.type=com.alibaba.druid.pool.DruidDataSource spring.datasource.driverClassName=com.mysql.jdbc.Driver spring.datasource.url=jdbc:mysql://172.16.1.28:3306/springcloud spring.datasource.username=cweserver spring.datasource.password=cweserveryzhh # 下面为连接池的补充设置，应用到上面所有数据源中 # 初始化大小，最小，最大 spring.datasource.initialSize=5 spring.datasource.minIdle=5 spring.datasource.maxActive=20 # 配置获取连接等待超时的时间 spring.datasource.maxWait=60000 # 配置间隔多久才进行一次检测，检测需要关闭的空闲连接，单位是毫秒 spring.datasource.timeBetweenEvictionRunsMillis=60000 # 配置一个连接在池中最小生存的时间，单位是毫秒 spring.datasource.minEvictableIdleTimeMillis=300000 spring.datasource.validationQuery=SELECT 1 FROMDUAL spring.datasource.testWhileIdle=true spring.datasource.testOnBorrow=false spring.datasource.testOnReturn=false # 打开PSCache，并且指定每个连接上PSCache的大小 spring.datasource.poolPreparedStatements=true spring.datasource.maxPoolPreparedStatementPerConnectionSize=20 # 配置监控统计拦截的filters，去掉后监控界面sql无法统计，'wall'用于防火墙 spring.datasource.filters=stat,wall,log4j # 通过connectProperties属性来打开mergeSql功能；慢SQL记录 spring.datasource.connectionProperties=druid.stat.mergeSql=true;druid.stat.slowSqlMillis=5000

主启动类：

@EnableZuulProxy
    @EnableEurekaClient
    @SpringBootApplication
    public class ZuulserverApplication {
    
       public static void main(String[] args) {
          SpringApplication.run(ZuulserverApplication.class, args);
       }

pom文件：

<properties>
       <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
       <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
       <java.version>1.8</java.version>
       <spring-cloud.version>Edgware.SR1</spring-cloud.version>
    </properties>
    
    <dependencies>
       <dependency>
          <groupId>org.springframework.boot</groupId>
          <artifactId>spring-boot-starter-web</artifactId>
       </dependency>
       <dependency>
          <groupId>org.springframework.cloud</groupId>
          <artifactId>spring-cloud-starter-eureka</artifactId>
       </dependency>
       <dependency>
          <groupId>org.springframework.cloud</groupId>
          <artifactId>spring-cloud-starter-zuul</artifactId>
       </dependency>
    
       <dependency>
          <groupId>org.springframework.boot</groupId>
          <artifactId>spring-boot-starter-test</artifactId>
          <scope>test</scope>
       </dependency>
    
       <dependency>
          <groupId>org.springframework.cloud</groupId>
          <artifactId>spring-cloud-starter-config</artifactId>
       </dependency>
    
       <dependency>
          <groupId>com.squareup.okhttp3</groupId>
          <artifactId>okhttp</artifactId>
       </dependency>
    
    
       <dependency>
          <groupId>org.springframework.boot</groupId>
          <artifactId>spring-boot-starter-jdbc</artifactId>
       </dependency>
    
       <dependency>
          <groupId>mysql</groupId>
          <artifactId>mysql-connector-java</artifactId>
          <scope>runtime</scope>
       </dependency>
    
       <dependency>
          <groupId>com.alibaba</groupId>
          <artifactId>druid</artifactId>
          <version>1.0.29</version>
       </dependency>
         <dependency>
          <groupId>org.springframework.cloud</groupId>
          <artifactId>spring-cloud-sleuth-zipkin-stream</artifactId>
       </dependency>
       <dependency>
          <groupId>org.springframework.cloud</groupId>
          <artifactId>spring-cloud-starter-stream-rabbit</artifactId>
       </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>

这样就可以实现路由的动态配置了