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package com.alibaba.excel;
import com.alibaba.excel.context.AnalysisContext;
import com.alibaba.excel.event.AnalysisEventListener;
import com.alibaba.excel.event.WriteHandler;
import com.alibaba.excel.metadata.Sheet;
import com.alibaba.excel.support.ExcelTypeEnum;
import java.io.InputStream;
import java.io.OutputStream;
import java.util.ArrayList;
import java.util.List;
/**
* Reader and writer factory class
*
* @author jipengfei
*/
public class EasyExcelFactory {
/**
* Quickly read small filesno more than 10,000 lines.
*
* @param in the POI filesystem that contains the Workbook stream.
* @param sheet read sheet.
* @return analysis result.
*/
public static List<Object> read(InputStream in, Sheet sheet) {
final List<Object> rows = new ArrayList<Object>();
new ExcelReader(in, null, new AnalysisEventListener() {
@Override
public void invoke(Object object, AnalysisContext context) {
rows.add(object);
}
@Override
public void doAfterAllAnalysed(AnalysisContext context) {
}
}, false).read(sheet);
return rows;
}
/**
* Parsing large file
*
* @param in the POI filesystem that contains the Workbook stream.
* @param sheet read sheet.
* @param listener Callback method after each row is parsed.
*/
public static void readBySax(InputStream in, Sheet sheet, AnalysisEventListener listener) {
new ExcelReader(in, null, listener).read(sheet);
}
/**
* Get ExcelReader.
*
* @param in the POI filesystem that contains the Workbook stream.
* @param listener Callback method after each row is parsed.
* @return ExcelReader.
*/
public static ExcelReader getReader(InputStream in, AnalysisEventListener listener) {
return new ExcelReader(in, null, listener);
}
/**
* Get ExcelWriter
*
* @param outputStream the java OutputStream you wish to write the data to.
* @return new ExcelWriter.
*/
public static ExcelWriter getWriter(OutputStream outputStream) {
return new ExcelWriter(outputStream, ExcelTypeEnum.XLSX, true);
}
/**
* Get ExcelWriter
*
* @param outputStream the java OutputStream you wish to write the data to.
* @param typeEnum 03 or 07
* @param needHead Do you need to write the header to the file?
* @return new ExcelWriter
*/
public static ExcelWriter getWriter(OutputStream outputStream, ExcelTypeEnum typeEnum, boolean needHead) {
return new ExcelWriter(outputStream, typeEnum, needHead);
}
/**
* Get ExcelWriter with a template file
*
* @param temp Append data after a POI file , Can be nullthe template POI filesystem that contains the
* Workbook stream)
* @param outputStream the java OutputStream you wish to write the data to
* @param typeEnum 03 or 07
* @return new ExcelWriter
*/
public static ExcelWriter getWriterWithTemp(InputStream temp, OutputStream outputStream, ExcelTypeEnum typeEnum,
boolean needHead) {
return new ExcelWriter(temp, outputStream, typeEnum, needHead);
}
/**
* Get ExcelWriter with a template file
*
* @param temp Append data after a POI file , Can be nullthe template POI filesystem that contains the
* Workbook stream)
* @param outputStream the java OutputStream you wish to write the data to
* @param typeEnum 03 or 07
* @param needHead
* @param handler User-defined callback
* @return new ExcelWriter
*/
public static ExcelWriter getWriterWithTempAndHandler(InputStream temp,
OutputStream outputStream,
ExcelTypeEnum typeEnum,
boolean needHead,
WriteHandler handler) {
return new ExcelWriter(temp, outputStream, typeEnum, needHead, handler);
}
}