SpringBoot应用中读取jar包中模板文件记录

在读取jar里面的模板文件的时候报错

2022-04-27 11:54:57.247 ERROR 167429 --- [io-12001-exec-4] c.a.bits.core.aop.RestExceptionAdvice    : edeb0180ba84454694c9ac9f20484dac:400000:class path resource [template/coopretiontemplate.pdf] cannot be resolved to absolute file path because it does not reside in the file system: jar:file:/home/aisvc/deploy/dde-cooc/dde-cooc-svc-1.0.0-SNAPSHOT-BOOT.jar!/BOOT-INF/classes!/template/coopretiontemplate.pdf

java.io.FileNotFoundException: class path resource [template/coopretiontemplate.pdf] cannot be resolved to absolute file path because it does not reside in the file system: jar:file:/home/aisvc/deploy/dde-cooc/dde-cooc-svc-1.0.0-SNAPSHOT-BOOT.jar!/BOOT-INF/classes!/template/coopretiontemplate.pdf
        at org.springframework.util.ResourceUtils.getFile(ResourceUtils.java:217) ~[spring-core-5.3.12.jar!/:5.3.12]
        at org.springframework.util.ResourceUtils.getFile(ResourceUtils.java:180) ~[spring-core-5.3.12.jar!/:5.3.12]

报错源码：

File docxTemplate = ResourceUtils.getFile("classpath:template/tempedoc.pdf");

InputStream inputStream = WordUtil.class.getClassLoader().getResourceAsStream("templates/docxTemplate.pdf");

File docxFile = new File("docxTemplate.docx");
log.debug("文件路径-------->"+docxFile.getAbsolutePath());

FileUtils.copyToFile(inputStream,docxFile);

文件路径：srcmainresourcestemplate下

解决方式使用ResourcePatternResolver：

ResourcePatternResolver resolver = new PathMatchingResourcePatternResolver();
Resource[] resources = resolver.getResources("classpath:template/tempedoc.pdf");
Resource resource = resources[0];
InputStream inputStream = resource.getInputStream();

其他备注

import org.springframework.core.io.support.ResourcePatternResolver;