jar包在linux下读取resources下文件

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/**      * 读取Resources下资源文件      * jar包时 linux下也可用      * @param filePath 文件路径 例如 /topology/color.json 注意/      * @return String 文件内容      */privatestaticStringreadFileStreamToStr(String filePath){InputStream is=null;BufferedReader br=null;try{             is=FileReadUtils.class.getResourceAsStream(filePath);if(null== is){                 log.error("readFile: file is not found, file path: {}", filePath);returnnull;}              br=newBufferedReader(newInputStreamReader(is));String s;StringBuilder sb=newStringBuilder();while((s= br.readLine())!=null){                 sb.append(s).append("\r\n");}return sb.toString();}catch(IOException e){             log.error(e.getCause().toString());}finally{if(is!=null){try{                     is.close();}catch(IOException e){                     log.error("error : FileReadUtils-readLinuxFileToStr-close InputStream : {}", e.getMessage());}}if(br!=null){try{                     is.close();}catch(IOException e){                     log.error("error : FileReadUtils-readLinuxFileToStr-close BufferedReader : {}", e.getMessage());}}}returnnull;}