翻车！SpringBoot2.2.3不兼容SpringCloudHoxton.SR1

  • Z时代
  • 2024-01-10
  • 分类：综合

编程

翻车日志

***************************
APPLICATION FAILED TO START
***************************
Description:
An attempt was made to call a method that does not exist. The attempt was made from the following location:
    org.springframework.cloud.gateway.config.GatewayAutoConfiguration$NettyConfiguration.gatewayHttpClient(GatewayAutoConfiguration.java:597)
The following method did not exist:
    reactor.netty.resources.ConnectionProvider.elastic(Ljava/lang/String;Ljava/time/Duration;)Lreactor/netty/resources/ConnectionProvider;
The method"s class, reactor.netty.resources.ConnectionProvider, is available from the following locations:
    jar:file:/Users/lengleng/env/repository/io/projectreactor/netty/reactor-netty/0.9.3.RELEASE/reactor-netty-0.9.3.RELEASE.jar!/reactor/netty/resources/ConnectionProvider.class
It was loaded from the following location:
    file:/Users/lengleng/env/repository/io/projectreactor/netty/reactor-netty/0.9.3.RELEASE/reactor-netty-0.9.3.RELEASE.jar
Action:
Correct the classpath of your application so that it contains a single, compatible version of reactor.netty.resources.ConnectionProvider

问题排查

如上日志涉及到 reactor-netty 依赖版本的问题

    +---------------------------+            +---------------------------+
    | Spring Boot 2.2.3.RELEASE |            | Spring Boot 2.2.2.RELEASE |
    +-------------+-------------+            +-------------+-------------+
                  |                                        |
+-----------------v----------------+     +-----------------v----------------+
|spring-boot-starter-reactor-netty |     |spring-boot-starter-reactor-netty |
|              2.2.3.RELEASE       |     |              2.2.2.RELEASE       |
+-----------------+----------------+     +-----------------+----------------+
                  |                                        |
          +-------+--------+                       +-------+--------+
          |  reactor-netty |                       |  reactor-netty |
          |  0.9.3.RELEASE |                       |  0.9.2.RELEASE |
          +----------------+                       +----------------+

ConnectionProvider

0.9.3 未对以下版本兼容，去掉ConnectionProvider.elastic(Ljava/lang/String;Ljava/time/Duration;) ，多态出来 一个 maxLifeTime 的参数， 具体参考

reactor/reactor-netty#922

reactor/reactor-netty#924

	/**
	 * Create a {@link ConnectionProvider} to cache and grow on demand {@link Connection}.
	 * <p>An elastic {@link ConnectionProvider} will never wait before opening a new
	 * connection. The reuse window is limited but it cannot starve an undetermined volume
	 * of clients using it.
	 *
	 * @param name the channel pool map name
	 * @param maxIdleTime the {@link Duration} after which the channel will be closed when idle (resolution: ms),
	 *                    if {@code NULL} there is no max idle time
	 * @param maxLifeTime the {@link Duration} after which the channel will be closed (resolution: ms),
	 *                    if {@code NULL} there is no max life time
	 *
	 * @return a new {@link ConnectionProvider} to cache and grow on demand
	 * {@link Connection}
	 */
	static ConnectionProvider elastic(String name, @Nullable Duration maxIdleTime, @Nullable Duration maxLifeTime) {
      ...
	}

解决方法

  • 全局使用 0.9.4 暂时是 快照版本，或者降级到 0.9.2 ，Spring Boot 2.2.3 未修改reactor 问题，降级是目前最好的选择。

<dependencymanagement>
		<dependencies>
			<dependency>
				<groupid>io.projectreactor.netty</groupid>
				<artifactid>reactor-netty</artifactid>
				<version>0.9.2.RELEASE</version>
			</dependency>
		</dependencies>
	</dependencymanagement>

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