带有 Docker 的 Spring 应用程序在启动时因类路径错误而失败答案

【问题标题】：Spring app with Docker fails on startup with class path error带有 Docker 的 Spring 应用程序在启动时因类路径错误而失败
【发布时间】：2023-03-25 07:44:01
【问题描述】：

刚开始一个简单的项目，当尝试使用简单的索引页面运行 Docker 容器时，使用 mvn spring-boot:build-image 命令进行构建，我收到以下错误。

不确定这是 Tomcat 还是 Spring 问题？在 SO 上只发现了一个类似的问题，这与不兼容版本的混合有关，但在这种情况下，我很确定所有 pom 都是最新的。我还尝试了一个没有 Undertow 但响应相同的构建。

在网上没有找到任何类似的问题。另外，注意它在 Intellij 中启动时运行良好，只有在 dockerized 时才会失败。

silenceisgrand   |  /\\ / ___'_ __ _ _(_)_ __  __ _ \ \ \ \
silenceisgrand   | ( ( )\___ | '_ | '_| | '_ \/ _` | \ \ \ \
silenceisgrand   |  \\/  ___)| |_)| | | | | || (_| |  ) ) ) )
silenceisgrand   |   '  |____| .__|_| |_|_| |_\__, | / / / /
silenceisgrand   |  =========|_|==============|___/=/_/_/_/
silenceisgrand   |  :: Spring Boot ::        (v2.3.2.RELEASE)
silenceisgrand   | 
silenceisgrand   | 2020-11-09 09:01:15,366 INFO  [main] org.springframework.boot.StartupInfoLogger: Starting SilenceisgrandApplication v0.0.1 on fd30e9598f54 with PID 1 (/workspace/BOOT-INF/classes started by cnb in /workspace)
silenceisgrand   | 2020-11-09 09:01:15,367 INFO  [main] org.springframework.boot.SpringApplication: The following profiles are active: h2o
silenceisgrand   | 2020-11-09 09:01:15,723 INFO  [main] org.springframework.data.repository.config.RepositoryConfigurationDelegate: Bootstrapping Spring Data JPA repositories in DEFERRED mode.
silenceisgrand   | 2020-11-09 09:01:15,758 INFO  [main] org.springframework.data.repository.config.RepositoryConfigurationDelegate: Finished Spring Data repository scanning in 29ms. Found 2 JPA repository interfaces.
silenceisgrand   | 2020-11-09 09:01:16,037 WARN  [main] org.springframework.context.support.AbstractApplicationContext: Exception encountered during context initialization - cancelling refresh attempt: org.springframework.context.ApplicationContextException: Unable to start web server; nested exception is java.lang.NoSuchMethodError: 'org.apache.coyote.ProtocolHandler org.apache.coyote.ProtocolHandler.create(java.lang.String, boolean)'
silenceisgrand   | 2020-11-09 09:01:16,044 INFO  [main] org.springframework.boot.autoconfigure.logging.ConditionEvaluationReportLoggingListener: 
silenceisgrand   | 
silenceisgrand   | Error starting ApplicationContext. To display the conditions report re-run your application with 'debug' enabled.
silenceisgrand   | 2020-11-09 09:01:16,045 ERROR [main] org.springframework.boot.diagnostics.LoggingFailureAnalysisReporter: 
silenceisgrand   | 
silenceisgrand   | ***************************
silenceisgrand   | APPLICATION FAILED TO START
silenceisgrand   | ***************************
silenceisgrand   | 
silenceisgrand   | Description:
silenceisgrand   | 
silenceisgrand   | An attempt was made to call a method that does not exist. The attempt was made from the following location:
silenceisgrand   | 
silenceisgrand   |     org.apache.catalina.connector.Connector.<init>(Connector.java:87)
silenceisgrand   | 
silenceisgrand   | The following method did not exist:
silenceisgrand   | 
silenceisgrand   |     'org.apache.coyote.ProtocolHandler org.apache.coyote.ProtocolHandler.create(java.lang.String, boolean)'
silenceisgrand   | 
silenceisgrand   | The method's class, org.apache.coyote.ProtocolHandler, is available from the following locations:
silenceisgrand   | 
silenceisgrand   |     jar:file:/workspace/BOOT-INF/lib/tomcat-coyote-10.0.0-M8.jar!/org/apache/coyote/ProtocolHandler.class
silenceisgrand   |     jar:file:/workspace/BOOT-INF/lib/tomcat-embed-core-9.0.37.jar!/org/apache/coyote/ProtocolHandler.class
silenceisgrand   | 
silenceisgrand   | The class hierarchy was loaded from the following locations:
silenceisgrand   | 
silenceisgrand   |     org.apache.coyote.ProtocolHandler: file:/workspace/BOOT-INF/lib/tomcat-coyote-10.0.0-M8.jar
silenceisgrand   | 
silenceisgrand   | 
silenceisgrand   | Action:
silenceisgrand   | 
silenceisgrand   | Correct the classpath of your application so that it contains a single, compatible version of org.apache.coyote.ProtocolHandler

而且 pom 看起来像这样；

<?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 https://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>
    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>2.3.2.RELEASE</version>
        <relativePath/> <!-- lookup parent from repository -->
    </parent>
    <groupId>com.silenceisgrand</groupId>
    <artifactId>silenceisgrand</artifactId>
    <version>0.0.1</version>
    <name>silenceisgrand</name>
    <description>The core silenceisgrand.com site</description>

    <properties>
        <java.version>11</java.version>
        <webjars-bootstrap.version>4.5.3</webjars-bootstrap.version>
    </properties>

    <dependencies>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-data-jpa</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-thymeleaf</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-validation</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-security</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.security</groupId>
            <artifactId>spring-security-test</artifactId>
            <version>5.4.0</version>
            <scope>test</scope>
        </dependency>

        <!-- Undertow; replacing Tomcat -->
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-undertow</artifactId>
            <version>2.3.4.RELEASE</version>
        </dependency>

        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-devtools</artifactId>
            <scope>runtime</scope>
            <optional>true</optional>
        </dependency>
        <dependency>
            <groupId>com.h2database</groupId>
            <artifactId>h2</artifactId>
            <scope>runtime</scope>
        </dependency>
        <dependency>
            <groupId>mysql</groupId>
            <artifactId>mysql-connector-java</artifactId>
            <scope>runtime</scope>
        </dependency>
        <dependency>
            <groupId>org.projectlombok</groupId>
            <artifactId>lombok</artifactId>
            <optional>true</optional>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-test</artifactId>
            <scope>test</scope>
            <exclusions>
                <exclusion>
                    <groupId>org.junit.vintage</groupId>
                    <artifactId>junit-vintage-engine</artifactId>
                </exclusion>
            </exclusions>
        </dependency>

        <!-- webjars -->
        <dependency>
            <groupId>org.webjars</groupId>
            <artifactId>webjars-locator-core</artifactId>
            <version>0.46</version>
        </dependency>
        <dependency>
            <groupId>org.webjars</groupId>
            <artifactId>jquery</artifactId>
            <version>3.5.1</version>
        </dependency>
        <dependency>
            <groupId>org.webjars</groupId>
            <artifactId>jquery-ui</artifactId>
            <version>1.12.1</version>
        </dependency>
        <dependency>
            <groupId>org.webjars</groupId>
            <artifactId>bootstrap</artifactId>
            <version>${webjars-bootstrap.version}</version>
        </dependency>

        <!-- Hamcrest -->
        <dependency>
            <groupId>org.hamcrest</groupId>
            <artifactId>hamcrest</artifactId>
            <version>2.2</version>
            <scope>test</scope>
        </dependency>

        <!-- Thymeleaf java8time extras -->
        <dependency>
            <groupId>org.thymeleaf.extras</groupId>
            <artifactId>thymeleaf-extras-java8time</artifactId>
        </dependency>
    </dependencies>

    <build>
        <plugins>
            <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
            </plugin>
        </plugins>
    </build>

</project>

【问题讨论】：

你正在混合不同版本的 spring boot/spring...
不确定我在哪里混合版本？将设置设置 Undertow 设置为 2.3.2 甚至删除它不会改变任何东西......对不起，困惑
您正在使用 spring-boot-starter-undertow:2.3.4.RELEASE 但您的父版本是 2.3.2.RELEASE 此外，您正在使用版本 5.4.0 定义 spring-security-test。我强烈建议使用 spring-boot 父级定义的版本，而不是覆盖这些版本。也移动到最新版本的spring-boot-parent 2.3.5.RELEASE ...
@khmarbaise 非常感谢！我确实没有意识到父版本低于 Undertow。我拿走了所有与 spring boot 相关的本地版本标签，清理了 maven 项目，删除了缓存并重新构建了项目。现在它可以正常工作了。很明显，我必须阅读 maven poms 的父子关系。非常感谢您的帮助！！

标签： java spring spring-boot maven tomcat

【解决方案1】：

除了我混淆了版本这一事实之外，maven 还在惹我并拒绝版本 2.3.5.RELEASE 说没有这样的版本。最后我不得不先清理项目，然后删除 maven 满意的 Intellij 缓存，重建图像后它现在表现良好。

【讨论】：