如何获取Resources目录下的文件

方式一

public void function(String fileName) throws IOException {
    String path = this.getClass().getClassLoader().getResource(fileName).getPath();
    System.out.println(path);
    String filePath = URLDecoder.decode(path, "UTF-8");//如果路径中带有中文会被URLEncoder,因此这里需要解码
    System.out.println(filePath);
}

方式二

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public void function(String fileName) throws IOException {
    InputStream in = this.getClass().getClassLoader().getResourceAsStream(fileName);
}

方式三

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public void function5(String fileName) throws IOException {
    InputStream in = this.getClass().getResourceAsStream(fileName);
}

方式四

这种方式要在SpringBoot环境下

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public void function6(String fileName) throws IOException {
    InputStream inputStream = new ClassPathResource(fileName).getInputStream();
}