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Spring Boot JAR - 缺少 EmbeddedServletContainerFactory

2023-12-20

Spring Boot (1.2.7) Web 应用程序（响应 SSL 请求）在 Intellij IDEA 上运行得很好。

构建 JAR 工件以从命令行运行，启动时抛出错误

org.springframework.context.ApplicationContextException: Unable to start embedded container; nested exception is org.springframework.context.ApplicationContextException: Unable to start EmbeddedWebApplicationContext due to missing EmbeddedServletContainerFactory bean.

问题

  1. 我怎样才能避免这个错误？
  2. 如果我需要声明一个EmbeddedServletContainerFactory，我怎样才能让它的ServletContainer处理我的控制器的请求？

尝试过的解决方案

根据错误请求添加了 EmbeddedservletContainerFactory。项目现在从 JAR 启动，但控制器不会像从 IntelliJ 运行时那样接收请求。

这是我的 Application.class 的样子after添加EmbeddedServletContainerFactory

package org.coursera.diabetes;

import com.j256.ormlite.dao.Dao;
import com.j256.ormlite.support.ConnectionSource;
import diabetes.common.model.*;
import org.apache.catalina.connector.Connector;
import org.apache.coyote.http11.Http11NioProtocol;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.EnableAutoConfiguration;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.boot.context.embedded.ConfigurableEmbeddedServletContainer;
import org.springframework.boot.context.embedded.EmbeddedServletContainerCustomizer;
import org.springframework.boot.context.embedded.EmbeddedServletContainerFactory;
import org.springframework.boot.context.embedded.tomcat.TomcatConnectorCustomizer;
import org.springframework.boot.context.embedded.tomcat.TomcatEmbeddedServletContainerFactory;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.context.annotation.Profile;
import org.springframework.core.env.Environment;
import org.springframework.core.io.ClassPathResource;
import org.springframework.core.io.Resource;

import java.io.File;
import java.io.IOException;
import java.sql.SQLException;
import java.util.ArrayList;
import java.util.List;

@SpringBootApplication
public class Application {
    private static final Logger logger = LoggerFactory.getLogger(Application.class);

    private static final String dbUrl = "jdbc:h2:mem:testdb";

    public static void main(String[] args) {
        SpringApplication.run(Application.class, args);

    }

    @Bean
    @Profile("production")
    public EmbeddedServletContainerFactory servletContainer(@Value("${keystore.file}") Resource keystoreFile) {
        TomcatEmbeddedServletContainerFactory tomcat = new TomcatEmbeddedServletContainerFactory();
        //factory.setPort(8443);
        String absoluteKeystoreFile = "";

        try {
            absoluteKeystoreFile = keystoreFile.getFile().getAbsolutePath();
            logger.info(String.format("******** keystore: %s", absoluteKeystoreFile));
        } catch (IOException e) {
            e.printStackTrace();
        }

        tomcat.addAdditionalTomcatConnectors(createSslConnector(absoluteKeystoreFile));
        return tomcat;
    }

    private Connector createSslConnector(String absKeystoreFile) {
        Connector connector = new Connector("org.apache.coyote.http11.Http11NioProtocol");
        Http11NioProtocol protocol = (Http11NioProtocol) connector.getProtocolHandler();
        try {
            connector.setScheme("https");
            connector.setSecure(true);
            connector.setPort(8443);
            protocol.setSSLEnabled(true);
            protocol.setKeystoreFile(absKeystoreFile);
            protocol.setKeystorePass("changeit");
            protocol.setKeyAlias("tomcat");
            return connector;
        }
        catch (Exception ex) {
            throw new IllegalStateException("can't access keystore: [" + "keystore"
                    + "] or truststore: [" + "keystore" + "]", ex);
        }
    }
}

Notes

Spring Boot（Web）应用程序在 Intellij IDEA 上运行得很好，响应 https 请求，无需在 application.properties 中执行任何其他操作：

security.require-ssl=true
server.port=8443
server.ssl.key-store=src/main/resources/private/keystore
server.ssl.key-store-password=changeit
server.ssl.key-password=changeit

要从命令行启动 JAR 工件，我使用：

java -Dspring.profiles.active=production -Dkeystore.file=file:///$PWD/keystore -jar diabetes-spring.jar

JAR 启动时不会出现错误，但 https Web 请求（来自 Intellij）仅返回 Apache/tomcat 404 “请求的资源不可用”。

EDITS

使用 -Ddebug 运行 JAR 会输出以下信息（我省略了所有未找到配置文件 application.properties / application / application-development.properties 的 DEBUG 消息，这些消息似乎不相关）

  .   ____          _            __ _ _
 /\\ / ___'_ __ _ _(_)_ __  __ _ \ \ \ \
( ( )\___ | '_ | '_| | '_ \/ _` | \ \ \ \
 \\/  ___)| |_)| | | | | || (_| |  ) ) ) )
  '  |____| .__|_| |_|_| |_\__, | / / / /
 =========|_|==============|___/=/_/_/_/
 :: Spring Boot ::

2015-11-13 14:16:39.980  INFO 47600 --- [           main] org.coursera.diabetes.Applica
tion        : Starting Application on Bakers-MacBook-Pro.local with PID 47600 (/User
s/baker/coursera-android/MoCCA-15/spring-tests/diabetes_root2/diabetes-spring/out/artifa
cts/diabetes_spring_jar/diabetes-spring.jar started by blam in /Users/blam/coursera-and
roid/MoCCA-15/spring-tests/diabetes_root2/diabetes-spring/out/artifacts/diabetes_spring
_jar)
2015-11-13 14:16:39.983 DEBUG 47600 --- [           main] o.s.boot.SpringApplication
            : Loading source class org.coursera.diabetes.Application
2015-11-13 14:16:40.011 DEBUG 47600 --- [           main] o.s.b.c.c.ConfigFileApplicati
onListener  : Activated profiles production
2015-11-13 14:16:40.011 DEBUG 47600 --- [           main] o.s.b.c.c.ConfigFileApplicati
onListener  : Loaded config file 'file:./config/application.properties'
2015-11-13 14:16:40.020  INFO 47600 --- [           main] ationConfigEmbeddedWebApplica
tionContext : Refreshing org.springframework.boot.context.embedded.AnnotationConfigEmbe
ddedWebApplicationContext@23faf8f2: startup date [Fri Nov 13 14:16:40 WET 2015]; root o
f context hierarchy
2015-11-13 14:16:40.022 DEBUG 47600 --- [           main] ationConfigEmbeddedWebApplica
tionContext : Bean factory for org.springframework.boot.context.embedded.AnnotationConf
igEmbeddedWebApplicationContext@23faf8f2: org.springframework.beans.factory.support.Def
aultListableBeanFactory@6cc7b4de: defining beans [org.springframework.context.annotatio
n.internalConfigurationAnnotationProcessor,org.springframework.context.annotation.inter
nalAutowiredAnnotationProcessor,org.springframework.context.annotation.internalRequired
AnnotationProcessor,org.springframework.context.annotation.internalCommonAnnotationProc
essor,application]; root of factory hierarchy
2015-11-13 14:16:40.220 DEBUG 47600 --- [           main] ationConfigEmbeddedWebApplica
tionContext : Unable to locate MessageSource with name 'messageSource': using default [
org.springframework.context.support.DelegatingMessageSource@20ce78ec]
2015-11-13 14:16:40.221 DEBUG 47600 --- [           main] ationConfigEmbeddedWebApplica
tionContext : Using ApplicationEventMulticaster [org.springframework.context.event.Simp
leApplicationEventMulticaster@393671df]
2015-11-13 14:16:40.226  WARN 47600 --- [           main] ationConfigEmbeddedWebApplica
tionContext : Exception encountered during context initialization - cancelling refresh
attempt

org.springframework.context.ApplicationContextException: Unable to start embedded conta
iner; nested exception is org.springframework.context.ApplicationContextException: Unab
le to start EmbeddedWebApplicationContext due to missing EmbeddedServletContainerFactor
y bean.
        at org.springframework.boot.context.embedded.EmbeddedWebApplicationContext.onRe
fresh(EmbeddedWebApplicationContext.java:132)
        at org.springframework.context.support.AbstractApplicationContext.refresh(Abstr
actApplicationContext.java:474)
        at org.springframework.boot.context.embedded.EmbeddedWebApplicationContext.refr
esh(EmbeddedWebApplicationContext.java:117)
        at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:68
9)
        at org.springframework.boot.SpringApplication.run(SpringApplication.java:321)
        at org.springframework.boot.SpringApplication.run(SpringApplication.java:969)
        at org.springframework.boot.SpringApplication.run(SpringApplication.java:958)
        at org.coursera.diabetes.Application.main(Application.java:40)
Caused by: org.springframework.context.ApplicationContextException: Unable to start EmbeddedWebApplicationContext due to missing EmbeddedServletContainerFactory bean.
        at org.springframework.boot.context.embedded.EmbeddedWebApplicationContext.getEmbeddedServletContainerFactory(EmbeddedWebApplicationContext.java:182)
        at org.springframework.boot.context.embedded.EmbeddedWebApplicationContext.createEmbeddedServletContainer(EmbeddedWebApplicationContext.java:155)
        at org.springframework.boot.context.embedded.EmbeddedWebApplicationContext.onRefresh(EmbeddedWebApplicationContext.java:129)
        ... 7 common frames omitted

2015-11-13 14:16:40.227  INFO 47600 --- [           main] .b.l.ClasspathLoggingApplicationListener : Application failed to start with classpath: [file:/Users/baker/coursera-android/MoCCA-15/spring-tests/diabetes_root2/diabetes-spring/out/artifacts/diabetes_spring_jar/diabetes-spring.jar]
2015-11-13 14:16:40.228 ERROR 47600 --- [           main] o.s.boot.SpringApplication               : Application startup failed

org.springframework.context.ApplicationContextException: Unable to start embedded container; nested exception is org.springframework.context.ApplicationContextException: Unable to start EmbeddedWebApplicationContext due to missing EmbeddedServletContainerFactory bean.
        at org.springframework.boot.context.embedded.EmbeddedWebApplicationContext.onRefresh(EmbeddedWebApplicationContext.java:132)
        at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:474)
        at org.springframework.boot.context.embedded.EmbeddedWebApplicationContext.refresh(EmbeddedWebApplicationContext.java:117)
        at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:689)
        at org.springframework.boot.SpringApplication.run(SpringApplication.java:321)
        at org.springframework.boot.SpringApplication.run(SpringApplication.java:969)
        at org.springframework.boot.SpringApplication.run(SpringApplication.java:958)
        at org.coursera.diabetes.Application.main(Application.java:40)
Caused by: org.springframework.context.ApplicationContextException: Unable to start EmbeddedWebApplicationContext due to missing EmbeddedServletContainerFactory bean.
        at org.springframework.boot.context.embedded.EmbeddedWebApplicationContext.getEmbeddedServletContainerFactory(EmbeddedWebApplicationContext.java:182)
        at org.springframework.boot.context.embedded.EmbeddedWebApplicationContext.createEmbeddedServletContainer(EmbeddedWebApplicationContext.java:155)
        at org.springframework.boot.context.embedded.EmbeddedWebApplicationContext.onRefresh(EmbeddedWebApplicationContext.java:129)
        ... 7 common frames omitted

在IntelliJ IDEA - 项目结构 - 工件 - 可用元素中，所有Gradle依赖库都需要提取到输出根使 Spring Boot 应用程序的 JAR 从 java 命令行执行正确运行。

将 JAR 工件更改为此后，我可以构建 JAR 并从命令行 JVM 运行它。

对于在 HTTPS/SSL 端口 8443 上运行的默认 TomcatEmbeddedServletContainerFactory，请指定与 application.properties 中所需的等效的 java 命令行参数。

i.e.

java -jar your-spring.jar --security.require-ssl=true --server.port=8443 --server.ssl.key-store=keystore --server.ssl.key-store-password=changeit --server.ssl.key-password=changeit
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