Package org.aoju.bus.core.text.csv

Class CsvParser

java.lang.Object

org.aoju.bus.core.collection.ComputeIterator<CsvRow>

org.aoju.bus.core.text.csv.CsvParser

All Implemented Interfaces:

Closeable, Serializable, AutoCloseable, Iterator<CsvRow>

public final class CsvParser
extends ComputeIterator<CsvRow>
implements Closeable, Serializable

CSV行解析器,参考：FastCSV

Since:

Java 17+

Author:

Kimi Liu

See Also:

• Serialized Form

Constructor Summary

Constructors

Constructor	Description
CsvParser(Reader reader, CsvReadConfig config)	CSV解析器

Method Summary

Modifier and Type	Method	Description
void	close()
protected CsvRow	computeNext()	计算新的节点，通过实现此方法，当调用ComputeIterator.hasNext()时将此方法产生的节点缓存，直到调用ComputeIterator.next()取出 当无下一个节点时，须返回null表示遍历结束
List<String>	getHeader()	获取头部字段列表，如果headerLineNo < 0,抛出异常
CsvRow	nextRow()	读取下一行数据

Methods inherited from class org.aoju.bus.core.collection.ComputeIterator

finish, hasNext, next

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface java.util.Iterator

forEachRemaining, remove

Constructor Details

CsvParser

public CsvParser(Reader reader,
 CsvReadConfig config)

CSV解析器

Parameters:

reader - Reader

config - 配置，null则为默认配置

Method Details

computeNext

protected CsvRow computeNext()

Description copied from class: ComputeIterator

计算新的节点，通过实现此方法，当调用ComputeIterator.hasNext()时将此方法产生的节点缓存，直到调用ComputeIterator.next()取出 当无下一个节点时，须返回null表示遍历结束

Specified by:

computeNext in class ComputeIterator<CsvRow>

Returns:

节点值

getHeader

public List<String> getHeader()

获取头部字段列表，如果headerLineNo < 0,抛出异常

Returns:

头部列表

Throws:

IllegalStateException - 如果不解析头部或者没有调用nextRow()方法

nextRow

public CsvRow nextRow()
               throws InstrumentException

读取下一行数据

Returns:

CsvRow

Throws:

InstrumentException - IO读取异常

close

public void close()
           throws IOException

Specified by:

close in interface AutoCloseable

Specified by:

close in interface Closeable

Throws:

IOException