java 获取资源文件

InputStream input;

if (jar) {
    input = this.getClass().getResourceAsStream("/templateFile" + "/" + item);
} else if (war) {
    input = new ClassPathResource("/templateFile" + "/" + item).getInputStream();
} else {
    input = this.getClass().getClassLoader().getResourceAsStream("/templateFile" + "/" + item);
}