在春季启动应用程序中，我尝试使用URLClassloader加载库。 Library / Jar文件包含1个控制器，请求处理程序和配置文件，这些文件实现WebMvcConfigurer类，但是当我使用spring-boot：run运行应用程序时，会抛出异常
代码：
@SpringBootApplication
@EnableAutoConfiguration
public class Main extends SpringBootServletInitializer
{
private static ConfigurableApplicationContext context = null;
public static void main(String[] args)
{
try
{
load(new File("~/controllerlib-1.00-jar-with-dependencies.jar"));
context = (new SpringApplication(Main.class)).run(args);
}
catch (Exception e)
{
e.printStackTrace();
throw e;
}
}
private void load(java.io.File plugin){
try {
java.net.URLClassLoader loader = (java.net.URLClassLoader) ClassLoader.getSystemClassLoader();
java.net.URI uri = plugin.toURI();
for (java.net.URL it : java.util.Arrays.asList(loader.getURLs())) {
if (it.toURI().equals(uri)) {
return;
}
}
java.lang.reflect.Method method = java.net.URLClassLoader.class.getDeclaredMethod("addURL",
new Class[] { java.net.URL.class });
method.setAccessible(true);
method.invoke(loader, new Object[]{uri.toURL()});
} catch (final java.lang.NoSuchMethodException | java.net.MalformedURLException | IllegalAccessException | IllegalArgumentException | InvocationTargetException | java.net.URISyntaxException e) {
e.printStackTrace();
}
}
}
例外：
[ERROR] Failed to execute goal org.springframework.boot:spring-boot-maven-plugin:2.1.0.M2:run (default-cli) on project Main-service: An exception occurred while running. null: InvocationTargetException: Failed to parse configuration class [org.loadjar.sprinboot.Main]; nested exception is java.lang.IllegalAccessError: tried to access class org.springframework.boot.web.servlet.support.SpringBootServletInitializer$WebEnvironmentPropertySourceInitializer from class org.springframework.boot.web.servlet.support.SpringBootServletInitializer -> [Help 1]
org.apache.maven.lifecycle.LifecycleExecutionException: Failed to execute goal org.springframework.boot:spring-boot-maven-plugin:2.1.0.M2:run (default-cli) on project Main-service: An exception occurred while running. null
at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:212)
at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:153)
at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:145)
at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject(LifecycleModuleBuilder.java:116)
at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject(LifecycleModuleBuilder.java:80)
at org.apache.maven.lifecycle.internal.builder.singlethreaded.SingleThreadedBuilder.build(SingleThreadedBuilder.java:51)
at org.apache.maven.lifecycle.internal.LifecycleStarter.execute(LifecycleStarter.java:128)
at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:307)
at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:193)
at org.apache.maven.DefaultMaven.execute(DefaultMaven.java:106)
at org.apache.maven.cli.MavenCli.execute(MavenCli.java:863)
at org.apache.maven.cli.MavenCli.doMain(MavenCli.java:288)
at org.apache.maven.cli.MavenCli.main(MavenCli.java:199)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at org.codehaus.plexus.classworlds.launcher.Launcher.launchEnhanced(Launcher.java:289)
at org.codehaus.plexus.classworlds.launcher.Launcher.launch(Launcher.java:229)
at org.codehaus.plexus.classworlds.launcher.Launcher.mainWithExitCode(Launcher.java:415)
at org.codehaus.plexus.classworlds.launcher.Launcher.main(Launcher.java:356)
at org.codehaus.classworlds.Launcher.main(Launcher.java:47)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at com.intellij.rt.execution.application.AppMain.main(AppMain.java:147)
Caused by: org.apache.maven.plugin.MojoExecutionException: An exception occurred while running. null
at org.springframework.boot.maven.AbstractRunMojo$IsolatedThreadGroup.rethrowUncaughtException(AbstractRunMojo.java:526)
at org.springframework.boot.maven.RunMojo.runWithMavenJvm(RunMojo.java:97)
at org.springframework.boot.maven.AbstractRunMojo.run(AbstractRunMojo.java:249)
at org.springframework.boot.maven.AbstractRunMojo.execute(AbstractRunMojo.java:198)
at org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo(DefaultBuildPluginManager.java:134)
at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:207)
... 26 more
Caused by: java.lang.reflect.InvocationTargetException
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at org.springframework.boot.maven.AbstractRunMojo$LaunchRunner.run(AbstractRunMojo.java:558)
at java.lang.Thread.run(Thread.java:748)
Caused by: org.springframework.beans.factory.BeanDefinitionStoreException: Failed to parse configuration class [org.loadjar.sprinboot.Main]; nested exception is java.lang.IllegalAccessError: tried to access class org.springframework.boot.web.servlet.support.SpringBootServletInitializer$WebEnvironmentPropertySourceInitializer from class org.springframework.boot.web.servlet.support.SpringBootServletInitializer
at org.springframework.context.annotation.ConfigurationClassParser.parse(ConfigurationClassParser.java:184)
at org.springframework.context.annotation.ConfigurationClassPostProcessor.processConfigBeanDefinitions(ConfigurationClassPostProcessor.java:315)
at org.springframework.context.annotation.ConfigurationClassPostProcessor.postProcessBeanDefinitionRegistry(ConfigurationClassPostProcessor.java:232)
at org.springframework.context.support.PostProcessorRegistrationDelegate.invokeBeanDefinitionRegistryPostProcessors(PostProcessorRegistrationDelegate.java:275)
at org.springframework.context.support.PostProcessorRegistrationDelegate.invokeBeanFactoryPostProcessors(PostProcessorRegistrationDelegate.java:95)
at org.springframework.context.support.AbstractApplicationContext.invokeBeanFactoryPostProcessors(AbstractApplicationContext.java:693)
at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:530)
at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.refresh(ServletWebServerApplicationContext.java:140)
at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:785)
at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:418)
at org.springframework.boot.SpringApplication.run(SpringApplication.java:337)
at org.loadjar.sprinboot.Main.main(Main.java:47)
... 6 more
Caused by: java.lang.IllegalAccessError: tried to access class org.springframework.boot.web.servlet.support.SpringBootServletInitializer$WebEnvironmentPropertySourceInitializer from class org.springframework.boot.web.servlet.support.SpringBootServletInitializer
at java.lang.Class.getDeclaredClasses0(Native Method)
at java.lang.Class.getDeclaredClasses(Class.java:1867)
at org.springframework.context.annotation.ConfigurationClassParser$SourceClass.getMemberClasses(ConfigurationClassParser.java:911)
at org.springframework.context.annotation.ConfigurationClassParser.processMemberClasses(ConfigurationClassParser.java:345)
at org.springframework.context.annotation.ConfigurationClassParser.doProcessConfigurationClass(ConfigurationClassParser.java:265)
at org.springframework.context.annotation.ConfigurationClassParser.processConfigurationClass(ConfigurationClassParser.java:245)
at org.springframework.context.annotation.ConfigurationClassParser.parse(ConfigurationClassParser.java:202)
at org.springframework.context.annotation.ConfigurationClassParser.parse(ConfigurationClassParser.java:170)
... 17 more