cn.orionsec.kit.office.csv.split

Class CsvColumnSplit

java.lang.Object

cn.orionsec.kit.office.csv.split.CsvColumnSplit

All Implemented Interfaces:

SafeCloseable, Closeable, AutoCloseable

public class CsvColumnSplit
extends Object
implements SafeCloseable

csv 拆分一个文件 占用内存少

Since:

2020/9/15 15:15

Version:

1.0.0

Author:

Jiahang Li

Constructor Summary

Constructors

Constructor and Description
CsvColumnSplit(CsvArrayReader reader, int... columns)
CsvColumnSplit(CsvExt ext, int... columns)

Method Summary

Modifier and Type	Method and Description
CsvColumnSplit	bufferLine(int bufferLine) 设置 读取行缓冲区
void	close() 安全关闭
int[]	getColumns()
CsvArrayReader	getReader()
CsvColumnSplit	header(String... headers) 设置表头
CsvColumnSplit	skip() 跳过头部一行
CsvColumnSplit	skip(int skip) 跳过头部多行
CsvColumnSplit	split(File file)
CsvColumnSplit	split(OutputStream out)
CsvColumnSplit	split(OutputStream out, boolean close) 执行拆分
CsvColumnSplit	split(String file)

Methods inherited from class java.lang.Object

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

Constructor Detail

CsvColumnSplit

public CsvColumnSplit(CsvExt ext,
                      int... columns)

CsvColumnSplit

public CsvColumnSplit(CsvArrayReader reader,
                      int... columns)

Method Detail

bufferLine

public CsvColumnSplit bufferLine(int bufferLine)

设置 读取行缓冲区

Parameters:

bufferLine - 缓冲区行数

Returns:

this

skip

public CsvColumnSplit skip()

跳过头部一行

Returns:

this

skip

public CsvColumnSplit skip(int skip)

跳过头部多行

Parameters:

skip - 行数

Returns:

this

header

public CsvColumnSplit header(String... headers)

设置表头

Parameters:

headers - 文件的表头

Returns:

ignore

split

public CsvColumnSplit split(File file)

split

public CsvColumnSplit split(String file)

split

public CsvColumnSplit split(OutputStream out)

split

public CsvColumnSplit split(OutputStream out,
                            boolean close)

执行拆分

Parameters:

out - out

close - 是否关闭流

Returns:

this

close

public void close()

Description copied from interface: SafeCloseable

安全关闭

Specified by:

close in interface SafeCloseable

Specified by:

close in interface Closeable

Specified by:

close in interface AutoCloseable

getReader

public CsvArrayReader getReader()

getColumns

public int[] getColumns()