File file = ResourceUtils.getFile("classpath:test"); //test是resource下的文件下文件夹
if(file.exists()){
File[] files = file.listFiles();
if(files != null){
for(File childFile:files){
// 处理响应流，必须与服务器响应流输出的编码一致
InputStream inputStream = null;
BufferedReader br = null;
inputStream = new FileInputStream(childFile);
br = new BufferedReader(new InputStreamReader(inputStream));
StringBuilder sb = new StringBuilder();
String line;
while ((line = br.readLine()) != null)
{
sb.append(line);
}
System.out.println(sb.toString());
}
}
}
如果打成jar包运行项目，会存在找不到资源的错误。
解决方法：
ClassPathResource cpr = new ClassPathResource(fileUrl);
byte[] bdata = FileCopyUtils.copyToByteArray(cpr.getInputStream());
data = new String(bdata, StandardCharsets.UTF_8);
return data;
