Question

我有一个spring boot 2应用程序，当在IDE（IntelliJ）中运行时，该应用程序会启动并按预期运行。但是，当我通过命令行（java -jar app.jar）运行应用程序时，出现了StackOverFlowError异常。

Caused by: java.lang.reflect.InvocationTargetException
    ... 1024 more
Caused by: java.lang.reflect.InvocationTargetException
    ... 1024 more
Caused by: java.lang.reflect.InvocationTargetException
    ... 1024 more
Caused by: java.lang.StackOverflowError
    at java.util.concurrent.ConcurrentHashMap.putVal(ConcurrentHashMap.java:1012)
    at java.util.concurrent.ConcurrentHashMap.putIfAbsent(ConcurrentHashMap.java:1535)
    at java.lang.ClassLoader.getClassLoadingLock(ClassLoader.java:463)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:404)
    at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:349)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
    at sun.reflect.GeneratedMethodAccessor1.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:498)

主要类别如下

@SpringBootApplication
@Configuration
@EnableAutoConfiguration
@EntityScan(basePackages="x.y.z")
@EnableJpaRepositories
@EnableTransactionManagement
@EnableAspectJAutoProxy
@EnableScheduling
@EnableAsync
@EnableRetry
@Slf4j
public class Application {

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

}

Answer 1

发现了问题。这是由于spring-boot-maven-plugin重新打包分类器在1.5.7版和2.1.6版（see here）之间发生了更改

我的1.5.7 pom的spring-boot-maven-plugin的配置如下：

<plugin>
  <groupId>org.springframework.boot</groupId>
  <artifactId>spring-boot-maven-plugin</artifactId>
  <executions>
    <execution>
    <goals>
      <goal>build-info</goal>
      <goal>repackage</goal>
    </goals>
    <configuration>
      <classifier>exec</classifier>
      <additionalProperties>
        <build.number>${buildNumber}</build.number>
      </additionalProperties>
    </configuration>
  </execution>
 </executions>
</plugin>

升级到spring-boot-maven-plugin:2.2.16版本后，生成的清单文件没有正确的Start-Class。

Manifest-Version: 1.0
Implementation-Title: my-app
Implementation-Version: 2.1.0-SNAPSHOT
Start-Class: org.springframework.boot.loader.JarLauncher
Spring-Boot-Classes: BOOT-INF/classes/
Spring-Boot-Lib: BOOT-INF/lib/
Build-Jdk-Spec: 1.8
Spring-Boot-Version: 2.1.6.RELEASE
Created-By: Maven Archiver 3.4.0
Main-Class: org.springframework.boot.loader.JarLauncher

将spring-boot-maven-plugin:2.2.16更改为以下内容可解决此问题-jar MANIFEST现在包含正确的Start-Class。

<plugin>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-maven-plugin</artifactId>
    <executions>
        <execution>
            <id>repackage</id>
            <goals>
                <goal>build-info</goal>
                <goal>repackage</goal>
            </goals>
            <configuration>
                <classifier>exec</classifier>
                <additionalProperties>
                    <build.number>${buildNumber}</build.number>
                </additionalProperties>
            </configuration>
        </execution>
    </executions>
</plugin>

更正MANIFEST：

Manifest-Version: 1.0
Implementation-Title: my-app
Implementation-Version: 2.1.0-SNAPSHOT
Start-Class: my.app.MainClass
Spring-Boot-Classes: BOOT-INF/classes/
Spring-Boot-Lib: BOOT-INF/lib/
Build-Jdk-Spec: 1.8
Spring-Boot-Version: 2.1.6.RELEASE
Created-By: Maven Archiver 3.4.0
Main-Class: org.springframework.boot.loader.JarLauncher

应用现在可以正常运行了。

Answer 2

对我来说，我将mainClass添加到spring boot maven插件中，并且正确生成了MANIFEST文件。

<plugin>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-maven-plugin</artifactId>
    <executions>
        <execution>
            <goals>
                <goal>repackage</goal>
            </goals>
            <configuration>
                <mainClass>com.test.App</mainClass>
                <finalName>JarName</finalName>
        </configuration>
    </execution>
</executions>

SpringBoot 2（2.1.6.RELEASE）StackOverFlowError

2 个答案: