导出报错cannot be resolved to absolute file path because it does not reside in the file system

gogo_hua

于 2022-04-24 19:15:00 发布

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分类专栏： Java web spring 文章标签： java

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版权

SpringBoot项目打包部署，读取jar里面的文件报错500，异常日志关键提示

cannot be resolved to absolute file path because it does not reside in the file system

报错定位

 is = new FileInputStream(ResourceUtils.getFile("classpath:static/data_template/biz/export_XXXX_report.xlsx"));

从报错可看到读取文件路径****XXX.jar!******.xlsx，XXX.jar就是打成jar，里面包含了需要读取的模板文件

具体Spring core(版本5.2.12)包源码ResourceUtils

public static File getFile(URL resourceUrl, String description) throws FileNotFoundException {
		Assert.notNull(resourceUrl, "Resource URL must not be null");
		if (!URL_PROTOCOL_FILE.equals(resourceUrl.getProtocol())) {
            //报错所在地方
			throw new FileNotFoundException(
					description + " cannot be resolved to absolute file path " +
					"because it does not reside in the file system: " + resourceUrl);
		}
		try {
			return new File(toURI(resourceUrl).getSchemeSpecificPart());
		}