使用Webflux和Spring Cloud时如何用netty替换tomcat？
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【中文标题】使用Webflux和Spring Cloud时如何用netty替换tomcat？【英文标题】：How to replace tomcat with netty when using Webflux and Spring Cloud? 【发布时间】：2019-12-07 12:01:04 【问题描述】：在阅读了几篇关于如何在使用 Webflux 时摆脱 Tomcat 的 SO 文章后，我仍然无法使用 Netty 作为 Tomcat 的替代品。
因为它是一个涉及不同模块和父 pom 等的项目。我将在这里发布到 repo 的链接： https://github.com/Deviad/clarity
如果您希望我在此处复制粘贴更多文件等，请告诉我，以符合 SO 政策。
我感兴趣的模块是clearance-transaction-dispatcher。
我认为问题与 Spring Cloud 在某种程度上需要 Tomcat（一些传递依赖项）以使我的中间件（clarity-transaction-dispatcher）与 Spring Cloud 配置服务器通信有关。
因此我很想知道这个问题是否有任何可能的解决方案。
谢谢。
我尝试使用 @Webflux 注释从 maven 中的某些依赖项中排除 tomcat，不包括 SpringMVC 自动配置。 我也试过这个： Spring boot enable/disable embedded tomcat with profile
家长会
<?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">
<groupId>com.clarity</groupId>
<modelVersion>4.0.0</modelVersion>
<packaging>pom</packaging>
<modules>
<module>clarity-transaction-dispatcher</module>
<module>clarity-eureka-server</module>
<module>clarity-persistence</module>
<module>clarity-config-server</module>
<module>clarity-shared</module>
</modules>
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.1.6.RELEASE</version>
</parent>
<artifactId>clarity</artifactId>
<version>0.0.1-SNAPSHOT</version>
<properties>
<java.version>11</java.version>
<spring-cloud.version>Greenwich.SR1</spring-cloud.version>
<org.mapstruct.version>1.3.0.Final</org.mapstruct.version>
<jool.version>0.9.14</jool.version>
</properties>
<dependencyManagement>
<dependencies>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-dependencies</artifactId>
<version>$spring-cloud.version</version>
<type>pom</type>
<scope>import</scope>
</dependency>
</dependencies>
</dependencyManagement>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-actuator</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-devtools</artifactId>
<scope>runtime</scope>
<optional>true</optional>
</dependency>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-starter-config</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-jersey</artifactId>
<version>1.2.0.RELEASE</version>
<exclusions>
<exclusion>
<groupId>org.springframework</groupId>
<artifactId>spring-web</artifactId>
</exclusion>
</exclusions>
</dependency>
<!-- <dependency>-->
<!-- <groupId>org.springframework.boot</groupId>-->
<!-- <artifactId>spring-boot-starter-web</artifactId>-->
<!-- </dependency>-->
<dependency>
<groupId>org.projectlombok</groupId>
<artifactId>lombok</artifactId>
<optional>true</optional>
<version>$lombok.version</version>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
<dependency>
<groupId>io.projectreactor</groupId>
<artifactId>reactor-test</artifactId>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-configuration-processor</artifactId>
<optional>true</optional>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-webflux</artifactId>
</dependency>
<dependency>
<groupId>com.sun.xml.bind</groupId>
<artifactId>jaxb-core</artifactId>
<version>2.3.0.1</version>
</dependency>
<dependency>
<groupId>javax.xml.bind</groupId>
<artifactId>jaxb-api</artifactId>
<version>2.3.1</version>
</dependency>
<dependency>
<groupId>com.sun.xml.bind</groupId>
<artifactId>jaxb-impl</artifactId>
<version>2.3.1</version>
</dependency>
<dependency>
<groupId>org.mapstruct</groupId>
<artifactId>mapstruct</artifactId>
<version>$org.mapstruct.version</version>
</dependency>
<dependency>
<groupId>org.jooq</groupId>
<artifactId>jool</artifactId>
<version>$jool.version</version>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
<exclusions>
<!-- Exclude the Tomcat dependency -->
<exclusion>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-tomcat</artifactId>
</exclusion>
</exclusions>
</dependency>
<dependency>
<groupId>an.awesome</groupId>
<artifactId>pipelinr</artifactId>
<version>0.2</version>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<version>3.8.1</version> <!-- or newer version -->
<configuration>
<!-- <compilerVersion>11</compilerVersion> <!– depending on your project –>-->
<annotationProcessorPaths>
<path>
<groupId>org.mapstruct</groupId>
<artifactId>mapstruct-processor</artifactId>
<version>$org.mapstruct.version</version>
</path>
<path>
<groupId>org.projectlombok</groupId>
<artifactId>lombok</artifactId>
<version>$lombok.version</version>
</path>
<!-- other annotation processors -->
</annotationProcessorPaths>
</configuration>
</plugin>
</plugins>
</build>
</project>
clearance-transaction-dispatcher 的子 pom
<?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">
<modelVersion>4.0.0</modelVersion>
<parent>
<groupId>com.clarity</groupId>
<artifactId>clarity</artifactId>
<version>0.0.1-SNAPSHOT</version>
<relativePath>../</relativePath> <!-- lookup parent from repository -->
</parent>
<properties>
<spring-integration-kafka.version>3.1.4.RELEASE</spring-integration-kafka.version>
<web3j.version>4.2.0</web3j.version>
</properties>
<artifactId>clarity-transaction-dispatcher</artifactId>
<version>0.0.1-SNAPSHOT</version>
<name>clarity-transaction-dispatcher</name>
<description>This microservice dispatches transactions from a cryptocurrency server to Hyperledger</description>
<packaging>jar</packaging>
<dependencyManagement>
<dependencies>
<dependency>
<groupId>com.clarity</groupId>
<artifactId>clarity</artifactId>
<version>0.0.1-SNAPSHOT</version>
<scope>import</scope>
<type>pom</type>
</dependency>
</dependencies>
</dependencyManagement>
<dependencies>
<dependency>
<groupId>com.clarity</groupId>
<artifactId>clarityshared</artifactId>
<version>0.0.1-SNAPSHOT</version>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-validation</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-websocket</artifactId>
<exclusions>
<exclusion>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</exclusion>
</exclusions>
</dependency>
<dependency>
<groupId>org.apache.kafka</groupId>
<artifactId>kafka-streams</artifactId>
<exclusions>
<exclusion>
<groupId>org.slf4j</groupId>
<artifactId>slf4j-log4j12</artifactId>
</exclusion>
</exclusions>
</dependency>
<dependency>
<groupId>org.springframework.kafka</groupId>
<artifactId>spring-kafka</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.integration</groupId>
<artifactId>spring-integration-kafka</artifactId>
<version>$spring-integration-kafka.version</version>
</dependency>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-stream</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-stream-binder-kafka-core</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-stream-binder-kafka</artifactId>
</dependency>
<dependency>
<groupId>org.apache.kafka</groupId>
<artifactId>kafka-clients</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-stream-binder-test</artifactId>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-stream-schema</artifactId>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.springframework.kafka</groupId>
<artifactId>spring-kafka-test</artifactId>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-starter-netflix-eureka-client</artifactId>
</dependency>
<dependency>
<groupId>org.web3j</groupId>
<artifactId>core</artifactId>
<version>$web3j.version</version>
</dependency>
<dependency>
<groupId>com.aol.cyclops</groupId>
<artifactId>cyclops-validation</artifactId>
<version>7.2.4</version>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
</plugins>
</build>
</project>
同一模块的主类：
package com.clarity.transactiondispatcher;
import org.springframework.beans.factory.InitializingBean;
import org.springframework.boot.WebApplicationType;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.boot.autoconfigure.web.servlet.WebMvcAutoConfiguration;
import org.springframework.boot.builder.SpringApplicationBuilder;
import org.springframework.web.reactive.config.EnableWebFlux;
import java.util.TimeZone;
@SpringBootApplication(exclude = WebMvcAutoConfiguration.class)
@EnableWebFlux
public class TransactionDispatcherApplication implements InitializingBean
private void started()
TimeZone.setDefault(TimeZone.getTimeZone("UTC"));
@Override
public void afterPropertiesSet()
started();
public static void main(String... args)
new SpringApplicationBuilder(TransactionDispatcherApplication.class).web(WebApplicationType.REACTIVE).run(args);
从我能想到的几乎任何地方排除 Tomcat 后，我仍然可以使用 Tomcat 而不是 Netty 运行应用程序。
【问题讨论】：
很难知道这么多外部库出了什么问题，有点乱。你能删除@EnableWebFlux 和exclude = WebMvcAutoConfiguration.class
【参考方案1】：
要使用 Spring-Boot 开发微服务并使用 Netty 服务器运行，需要很少的依赖项。
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-webflux</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
<dependency>
<groupId>io.projectreactor</groupId>
<artifactId>reactor-test</artifactId>
<scope>test</scope>
</dependency>
</dependencies>
在主类中，我们只需要@SpringBootApplication。
请相应地更改您的父母和孩子 pom.xml。根本不应该有任何spring-boot-starter-web 依赖。
【讨论】：
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