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add filter read line

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This commit is contained in:
likeguo 2023-03-23 00:16:49 +08:00
parent 292ceb594b
commit 3c72340868
1 changed files with 33 additions and 0 deletions
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33
hutool-core/src/main/java/cn/hutool/core/io/FileUtil.java
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@ -54,6 +54,7 @@ import java.util.List;
import java.util.Map;
import java.util.Objects;
import java.util.function.Consumer;
import java.util.function.Predicate;
import java.util.jar.JarFile;
import java.util.regex.Pattern;
import java.util.zip.CRC32;
@ -2368,6 +2369,19 @@ public class FileUtil extends PathUtil {
return readLines(file, CharsetUtil.CHARSET_UTF_8);
}
/**
* 从文件中读取每一行数据
*
* @param file 文件
* @param filter 过滤器
* @return 文件中的每行内容的集合List
* @throws IORuntimeException IO异常
* @since 3.1.1
*/
public static List<String> readUtf8Lines(File file, Predicate<String> filter) throws IORuntimeException {
return readLines(file, CharsetUtil.CHARSET_UTF_8, filter);
}
/**
* 从文件中读取每一行数据
*
@ -2392,6 +2406,25 @@ public class FileUtil extends PathUtil {
return readLines(file, charset, new ArrayList<>());
}
/**
* 从文件中读取每一行数据
*
* @param file 文件
* @param charset 字符集
* @param filter 过滤器
* @return 文件中的每行内容的集合List
* @throws IORuntimeException IO异常
*/
public static List<String> readLines(File file, Charset charset, Predicate<String> filter) throws IORuntimeException {
final List<String> result = new ArrayList<>();
readLines(file, charset, (LineHandler) line -> {
if (Boolean.TRUE.equals(filter.test(line))) {
result.add(line);
}
});
return result;
}
/**
* 按行处理文件内容，编码为UTF-8
*