public class LineIter extends Object implements Iterator<String>, Iterable<String>, Closeable, Serializable
LineIterator it = null;
try {
it = new LineIterator(reader);
while (it.hasNext()) {
String line = it.nextLine();
// do something with line
}
} finally {
it.close();
}
此类来自于Apache Commons io| Constructor and Description |
|---|
LineIter(InputStream in,
Charset charset)
构造
|
LineIter(Reader reader)
构造
|
| Modifier and Type | Method and Description |
|---|---|
void |
close()
关闭Reader
|
boolean |
hasNext()
|
protected boolean |
isValidLine(String line)
重写此方法来判断是否每一行都被返回，默认全部为true
|
Iterator<String> |
iterator() |
String |
next()
返回下一行内容
|
String |
nextLine()
返回下一行
|
void |
remove()
不支持移除
|
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, waitforEachRemainingforEach, spliteratorpublic LineIter(InputStream in, Charset charset) throws IllegalArgumentException
in - InputStreamcharset - 编码IllegalArgumentException - reader为null抛出此异常public LineIter(Reader reader) throws IllegalArgumentException
reader - Reader对象，不能为nullIllegalArgumentException - reader为null抛出此异常public boolean hasNext()
throws IORuntimeException
hasNext in interface Iterator<String>true 表示有更多行IORuntimeException - IO异常public String next() throws NoSuchElementException
next in interface Iterator<String>NoSuchElementException - 没有新行public String nextLine() throws NoSuchElementException
NoSuchElementException - 没有更多行public void close()
close in interface Closeableclose in interface AutoCloseablepublic void remove()
remove in interface Iterator<String>UnsupportedOperationException - 始终抛出此异常protected boolean isValidLine(String line)
line - 需要验证的行Copyright © 2021. All rights reserved.