alibaba/spring-cloud-alibaba

FileNotFoundException throws when rules is provided by local resources in classpath and executed in command line

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Aperta il 20 mar 2019

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 (3 commenti) (0 reazioni) (0 assegnatari)Java (29.106 star) (8513 fork)batch import
area/sentinelgood first issue

Descrizione

Component: Sentinel

Description: If the rules were configured in local file in classpath and executed the built jar in command line, FileNotFoundException throws, says,

class path resource [sentinel.json] cannot be resolved to absolute file path because it does not reside in the file system:jar:file:/D:/projects/a/b/c/blabal.jar!/BOOT-INF/classes!/sentinel.json

Investigation: class: FileDataSourceProperties method:preCheck

Guida contributor

Tech stack
javaspring
Dominio
backend
Tipo issue
bug
DifficoltàQuanto dovrebbe essere impegnativa per un nuovo contributor.
2
Tempo stimatoTempo stimato per completare e verificare uno scope piccolo.
under 1 hour
Stato attivitàQuanto è probabile che la issue sia ancora attiva e reviewable.
stale
ChiarezzaQuanto chiaramente la issue descrive problema, scope e risultato atteso.
clear
Prerequisiti
JavaSpring BootMaven/Gradle
Adatta ai principiantiQuanto la issue è adatta a contributor alla prima esperienza.
50
Direzione di ricerca
The issue is in FileDataSourceProperties.preCheck where a classpath resource is accessed using absolute path resolution, which fails inside a JAR. Investigate using Spring's ResourceLoader to obtain an InputStream instead of a File. Look at other Spring components handling classpath resources for patterns. The fix is likely in the preCheck method to use `Resource.getInputStream()` instead of `File`.