cn.hutool.core.text.csv

Class CsvParser

java.lang.Object

cn.hutool.core.collection.ComputeIter<CsvRow>

cn.hutool.core.text.csv.CsvParser

All Implemented Interfaces:

Closeable, Serializable, AutoCloseable, Iterator<CsvRow>

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

CSV行解析器，参考：FastCSV

Author:

Looly

See Also:

Serialized Form

Constructor Summary

Constructors

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

Method Summary

Modifier and Type	Method and Description
void	close()
protected CsvRow	computeNext() 计算新的节点，通过实现此方法，当调用ComputeIter.hasNext()时将此方法产生的节点缓存，直到调用ComputeIter.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 cn.hutool.core.collection.ComputeIter

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 Detail

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 Detail

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

computeNext

protected CsvRow computeNext()

Description copied from class: ComputeIter

计算新的节点，通过实现此方法，当调用ComputeIter.hasNext()时将此方法产生的节点缓存，直到调用ComputeIter.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 ComputeIter<CsvRow>

Returns:

节点值

nextRow

public CsvRow nextRow()
               throws IORuntimeException

读取下一行数据

Returns:

CsvRow，null表示

Throws:

IORuntimeException - IO读取异常

close

public void close()
           throws IOException

Specified by:

close in interface Closeable

Specified by:

close in interface AutoCloseable

Throws:

IOException