在spring boot中的tomcat嵌入中禁用Jar扫描的扫描清单

Question

我在日志中收到一些警告，像这样：

java.io.FileNotFoundException: C:\Users\user\.m2\repository\com\lowagie\itext\2.0.8\bcmail-jdk14-138.jar (O sistema não pode encontrar o arquivo especificado)
    at java.util.zip.ZipFile.open(Native Method) ~[na:1.8.0_121]
    at java.util.zip.ZipFile.<init>(ZipFile.java:219) ~[na:1.8.0_121]
    at java.util.zip.ZipFile.<init>(ZipFile.java:149) ~[na:1.8.0_121]
    at java.util.jar.JarFile.<init>(JarFile.java:166) ~[na:1.8.0_121]
    at java.util.jar.JarFile.<init>(JarFile.java:130) ~[na:1.8.0_121]
    at org.apache.tomcat.util.scan.JarFileUrlJar.<init>(JarFileUrlJar.java:60) ~[tomcat-embed-core-8.5.6.jar:8.5.6]
    at org.apache.tomcat.util.scan.JarFactory.newInstance(JarFactory.java:48) ~[tomcat-embed-core-8.5.6.jar:8.5.6]
    at org.apache.tomcat.util.scan.StandardJarScanner.process(StandardJarScanner.java:338) ~[tomcat-embed-core-8.5.6.jar:8.5.6]
    at org.apache.tomcat.util.scan.StandardJarScanner.scan(StandardJarScanner.java:288) ~[tomcat-embed-core-8.5.6.jar:8.5.6]
    at org.apache.jasper.servlet.TldScanner.scanJars(TldScanner.java:262) [tomcat-embed-jasper-8.5.6.jar:8.5.6]
    at org.apache.jasper.servlet.TldScanner.scan(TldScanner.java:104) [tomcat-embed-jasper-8.5.6.jar:8.5.6]
    at org.apache.jasper.servlet.JasperInitializer.onStartup(JasperInitializer.java:101) [tomcat-embed-jasper-8.5.6.jar:8.5.6]
    at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5178) [tomcat-embed-core-8.5.6.jar:8.5.6]
    at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150) [tomcat-embed-core-8.5.6.jar:8.5.6]
    at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1403) [tomcat-embed-core-8.5.6.jar:8.5.6]
    at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1393) [tomcat-embed-core-8.5.6.jar:8.5.6]
    at java.util.concurrent.FutureTask.run(FutureTask.java:266) [na:1.8.0_121]
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) [na:1.8.0_121]
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) [na:1.8.0_121]
    at java.lang.Thread.run(Thread.java:745) [na:1.8.0_121]

在一个独立的tomcat中，我可以创建一个context.xml：

<Context>
  ...
  <JarScanner scanManifest="false"/>
  ...
</Context>

如何禁用清单文件的JarScanner(https://tomcat.apache.org/tomcat-8.0-doc/config/jar-scanner.html)在使用Spring Boot的java配置类中。

Answer 1

只是想提高奥列格关于Spring Boot 1. x的优秀答案...

以下是Spring Boot 2.0（Tomcat 8.5）的相应代码：

  @Bean
  public TomcatServletWebServerFactory tomcatFactory() {
    return new TomcatServletWebServerFactory() {
      @Override
      protected void postProcessContext(Context context) {
        ((StandardJarScanner) context.getJarScanner()).setScanManifest(false);
      }
    };
  }

只需将其添加到应用程序的配置中。

Answer 2

这是可控的通过属性现在：

# Comma-separated list of additional patterns that match jars to ignore for TLD scanning.    
server.tomcat.additional-tld-skip-patterns=*.jar

通过从Spring boot 1.2升级到1.5.2后，在Tomcat 8.5启动期间FileNotFoundException

Answer 3

编辑：这个怎么样？

  @Bean
  public EmbeddedServletContainerFactory embeddedServletContainerFactory() {
    return new TomcatEmbeddedServletContainerFactory() {
      @Override
      protected void postProcessContext(Context context) {
        ((StandardJarScanner) context.getJarScanner()).setScanManifest(false);
      }
    };
  }