spring-boot启动时报如下异常
: Error processing condition on
at (:59) ~[spring-boot-autoconfigure-2.1.:2.1.]
at (:108) ~[spring-context-5.1.:5.1.]
at (:181) ~[spring-context-5.1.:5.1.]
at (:141) ~[spring-context-5.1.:5.1.]
at (:117) ~[spring-context-5.1.:5.1.]
at (:327) ~[spring-context-5.1.:5.1.]
at (:232) ~[spring-context-5.1.:5.1.]
at (:275) ~[spring-context-5.1.:5.1.]
at (:95) ~[spring-context-5.1.:5.1.]
at (:705) ~[spring-context-5.1.:5.1.]
at (:531) ~[spring-context-5.1.:5.1.]
at (:140) ~[spring-boot-2.1.:2.1.]
at (:742) [spring-boot-2.1.:2.1.]
at (:389) [spring-boot-2.1.:2.1.]
at (:311) [spring-boot-2.1.:2.1.]
at (:1213) [spring-boot-2.1.:2.1.]
at (:1202) [spring-boot-2.1.:2.1.]
at (:13) [classes/:na]
Caused by: : Failed to introspect Class [] from ClassLoader [$AppClassLoader@18b4aac2]
at (:507) ~[spring-core-5.1.:5.1.]
at (:404) ~[spring-core-5.1.:5.1.]
at (:389) ~[spring-core-5.1.:5.1.]
at (:447) ~[spring-core-5.1.:5.1.]
at (:1660) ~[na:1.8.0_171]
at (:738) ~[spring-beans-5.1.:5.1.]
at (:679) ~[spring-beans-5.1.:5.1.]
at (:647) ~[spring-beans-5.1.:5.1.]
at (:1518) ~[spring-beans-5.1.:5.1.]
at (:1023) ~[spring-beans-5.1.:5.1.]
at (:190) ~[spring-boot-autoconfigure-2.1.:2.1.]
at (:157) ~[spring-boot-autoconfigure-2.1.:2.1.]
at (:150) ~[spring-boot-autoconfigure-2.1.:2.1.]
at (:138) ~[spring-boot-autoconfigure-2.1.:2.1.]
at (:116) ~[na:1.8.0_171]
at (:133) ~[spring-boot-autoconfigure-2.1.:2.1.]
at (:97) ~[spring-boot-autoconfigure-2.1.:2.1.]
at (:268) ~[spring-boot-autoconfigure-2.1.:2.1.]
at (:261) ~[spring-boot-autoconfigure-2.1.:2.1.]
at (:250) ~[spring-boot-autoconfigure-2.1.:2.1.]
at (:170) ~[spring-boot-autoconfigure-2.1.:2.1.]
at (:145) ~[spring-boot-autoconfigure-2.1.:2.1.]
at (:46) ~[spring-boot-autoconfigure-2.1.:2.1.]
... 17 common frames omitted
Caused by: : org/springframework/web/filter/FormContentFilter
at .defineClass1(Native Method) ~[na:1.8.0_171]
at (:763) ~[na:1.8.0_171]
at (:142) ~[na:1.8.0_171]
at (:467) ~[na:1.8.0_171]
at $100(:73) ~[na:1.8.0_171]
at $(:368) ~[na:1.8.0_171]
at $(:362) ~[na:1.8.0_171]
at (Native Method) ~[na:1.8.0_171]
at (:361) ~[na:1.8.0_171]
at (:424) ~[na:1.8.0_171]
at $(:349) ~[na:1.8.0_171]
at (:357) ~[na:1.8.0_171]
at .getDeclaredMethods0(Native Method) ~[na:1.8.0_171]
at (:2701) ~[na:1.8.0_171]
at (:1975) ~[na:1.8.0_171]
at (:489) ~[spring-core-5.1.:5.1.]
... 39 common frames omitted
Caused by: :
at (:381) ~[na:1.8.0_171]
at (:424) ~[na:1.8.0_171]
at $(:349) ~[na:1.8.0_171]
at (:357) ~[na:1.8.0_171]
... 55 common frames omitted
2019-07-12 10:39:50.264 WARN 61498 --- [ main] : Unable to close ApplicationContext
: Failed to introspect Class [] from ClassLoader [$AppClassLoader@18b4aac2]
at (:507) ~[spring-core-5.1.:5.1.]
at (:404) ~[spring-core-5.1.:5.1.]
at (:389) ~[spring-core-5.1.:5.1.]
at (:447) ~[spring-core-5.1.:5.1.]
at (:1660) ~[na:1.8.0_171]
at (:738) ~[spring-beans-5.1.:5.1.]
at (:679) ~[spring-beans-5.1.:5.1.]
at (:647) ~[spring-beans-5.1.:5.1.]
at (:1518) ~[spring-beans-5.1.:5.1.]
at (:511) ~[spring-beans-5.1.:5.1.]
at (:481) ~[spring-beans-5.1.:5.1.]
at (:602) ~[spring-beans-5.1.:5.1.]
at (:594) ~[spring-beans-5.1.:5.1.]
at (:1226) ~[spring-context-5.1.:5.1.]
at (:864) [spring-boot-2.1.:2.1.]
at (:852) [spring-boot-2.1.:2.1.]
at (:839) [spring-boot-2.1.:2.1.]
at (:790) [spring-boot-2.1.:2.1.]
at (:321) [spring-boot-2.1.:2.1.]
at (:1213) [spring-boot-2.1.:2.1.]
at (:1202) [spring-boot-2.1.:2.1.]
at (:13) [classes/:na]
Caused by: : org/springframework/web/filter/FormContentFilter
at .defineClass1(Native Method) ~[na:1.8.0_171]
at (:763) ~[na:1.8.0_171]
at (:142) ~[na:1.8.0_171]
at (:467) ~[na:1.8.0_171]
at $100(:73) ~[na:1.8.0_171]
at $(:368) ~[na:1.8.0_171]
at $(:362) ~[na:1.8.0_171]
at (Native Method) ~[na:1.8.0_171]
at (:361) ~[na:1.8.0_171]
at (:424) ~[na:1.8.0_171]
at $(:349) ~[na:1.8.0_171]
at (:357) ~[na:1.8.0_171]
at .getDeclaredMethods0(Native Method) ~[na:1.8.0_171]
at (:2701) ~[na:1.8.0_171]
at (:1975) ~[na:1.8.0_171]
at (:489) ~[spring-core-5.1.:5.1.]
... 21 common frames omitted
Caused by: :
at (:381) ~[na:1.8.0_171]
at (:424) ~[na:1.8.0_171]
at $(:349) ~[na:1.8.0_171]
at (:357) ~[na:1.8.0_171]
... 37 common frames omitted
解决方式：去掉一些包引用
<dependency>
<groupId></groupId>
<artifactId>spring-web</artifactId>
<version>5.0.</version>
</dependency>