alibaba/spring-cloud-alibaba

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

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#462 创建于 2019年3月20日

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area/sentinelgood first issue

描述

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

贡献者指南

技术栈
javaspring
领域
backend
议题类型
bug
难度面向新贡献者的预计实现难度，1 表示很小改动，5 表示专家级工作。
2
预计时间有经验贡献者完成调查、实现、测试并准备 pull request 的粗略时间范围。
under 1 hour
活动状态议题当前的可参与程度：新鲜、活跃、陈旧、阻塞或等待维护者输入。
stale
清晰度议题是否清楚说明期望改动、验收标准和下一步。
clear
前置要求
JavaSpring BootMaven/Gradle
新手友好度1-100 的估计分数，表示该议题对首次贡献者的友好程度。
50
研究方向
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`.