SpringBoot读取jar包中的资源文件

 java -jar启动读取jar包内部资源文件

    /**
     * 读取jar包中classpath下面的文件
     *
     * @param path 文件名
     * @return
     */
    public static String readJarFile(String path) {
        String s = null;
        try {
            ClassPathResource cpr = new ClassPathResource(path);
            System.out.println(cpr.getURL());
            byte[] bdata = FileCopyUtils.copyToByteArray(cpr.getInputStream());
            s = new String(bdata, StandardCharsets.UTF_8);
        } catch (IOException e) {
            e.printStackTrace();
        }
        return s;
    }

获取jar包的路径，用于配置文件

    public static String getJarPath() {
        ApplicationHome h = new ApplicationHome(PathUtil.class);
        File jarF = h.getSource();
        System.out.println(jarF.getParentFile().toString());
        return jarF.getParentFile().toString()+"/";
    }