private Ini createIni(final File file) throws IOException {
        final Ini conf = new Ini(file);
        this.loadFileModified = file.lastModified();
        this.loadFileChkSum = FileUtils.checksumCRC32(file);
        return conf;
    }
Retrieve similar configurations within a set of specific configurations according to the given configuration.

@param section      the section within file to be searched.
@param configFields the set of configurations to be searched.
@param checkItem    the given configuration to be compared.
inlong-tubemq/tubemq-server/src/main/java/org/apache/inlong/tubemq/server/common/fileconfig/AbstractFileConfig.java