mirror of https://github.com/alibaba/easyexcel
Jiaju Zhuang
5 years ago
20 changed files with 354 additions and 43 deletions
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package com.alibaba.excel.analysis.v03; |
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import java.io.IOException; |
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import java.util.ArrayList; |
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import java.util.List; |
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import org.apache.poi.hssf.eventusermodel.EventWorkbookBuilder; |
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import org.apache.poi.hssf.eventusermodel.FormatTrackingHSSFListener; |
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import org.apache.poi.hssf.eventusermodel.HSSFEventFactory; |
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import org.apache.poi.hssf.eventusermodel.HSSFListener; |
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import org.apache.poi.hssf.eventusermodel.HSSFRequest; |
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import org.apache.poi.hssf.eventusermodel.MissingRecordAwareHSSFListener; |
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import org.apache.poi.hssf.record.BoundSheetRecord; |
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import org.apache.poi.hssf.record.Record; |
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import org.apache.poi.poifs.filesystem.POIFSFileSystem; |
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import com.alibaba.excel.analysis.v03.handlers.BofRecordHandler; |
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import com.alibaba.excel.context.AnalysisContext; |
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import com.alibaba.excel.exception.ExcelAnalysisException; |
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import com.alibaba.excel.read.metadata.ReadSheet; |
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/** |
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* In some cases, you need to know the number of sheets in advance and only read the file once in advance. |
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* |
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* @author Jiaju Zhuang |
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*/ |
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public class XlsListSheetListener implements HSSFListener { |
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private POIFSFileSystem poifsFileSystem; |
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private List<ReadSheet> sheetList; |
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private XlsRecordHandler bofRecordHandler; |
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public XlsListSheetListener(AnalysisContext analysisContext, POIFSFileSystem poifsFileSystem) { |
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this.poifsFileSystem = poifsFileSystem; |
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sheetList = new ArrayList<ReadSheet>(); |
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bofRecordHandler = new BofRecordHandler(analysisContext, sheetList, false); |
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bofRecordHandler.init(); |
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} |
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@Override |
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public void processRecord(Record record) { |
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bofRecordHandler.processRecord(record); |
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} |
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public List<ReadSheet> getSheetList() { |
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MissingRecordAwareHSSFListener listener = new MissingRecordAwareHSSFListener(this); |
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HSSFListener formatListener = new FormatTrackingHSSFListener(listener); |
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HSSFEventFactory factory = new HSSFEventFactory(); |
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HSSFRequest request = new HSSFRequest(); |
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EventWorkbookBuilder.SheetRecordCollectingListener workbookBuildingListener = |
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new EventWorkbookBuilder.SheetRecordCollectingListener(formatListener); |
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request.addListenerForAllRecords(workbookBuildingListener); |
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try { |
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factory.processWorkbookEvents(request, poifsFileSystem); |
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} catch (IOException e) { |
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throw new ExcelAnalysisException(e); |
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} |
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return sheetList; |
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} |
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} |
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package com.alibaba.easyexcel.test.core.multiplesheets; |
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import lombok.Data; |
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/** |
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* @author Jiaju Zhuang |
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*/ |
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@Data |
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public class MultipleSheetsData { |
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private String title; |
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} |
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package com.alibaba.easyexcel.test.core.multiplesheets; |
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import java.io.File; |
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import java.util.List; |
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import org.junit.Assert; |
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import org.junit.BeforeClass; |
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import org.junit.FixMethodOrder; |
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import org.junit.Test; |
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import org.junit.runners.MethodSorters; |
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import com.alibaba.easyexcel.test.util.TestFileUtil; |
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import com.alibaba.excel.EasyExcel; |
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import com.alibaba.excel.ExcelReader; |
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import com.alibaba.excel.read.metadata.ReadSheet; |
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/** |
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* |
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* @author Jiaju Zhuang |
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*/ |
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@FixMethodOrder(MethodSorters.NAME_ASCENDING) |
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public class MultipleSheetsDataTest { |
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private static File file07; |
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private static File file03; |
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@BeforeClass |
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public static void init() { |
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file07 = TestFileUtil.readFile("multiplesheets" + File.separator + "multiplesheets.xlsx"); |
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file03 = TestFileUtil.readFile("multiplesheets" + File.separator + "multiplesheets.xls"); |
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} |
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@Test |
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public void t01Read07() { |
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read(file07); |
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} |
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@Test |
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public void t020Read03() { |
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read(file03); |
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} |
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private void read(File file) { |
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MultipleSheetsListener multipleSheetsListener = new MultipleSheetsListener(); |
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ExcelReader excelReader = EasyExcel.read(file, MultipleSheetsData.class, multipleSheetsListener).build(); |
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List<ReadSheet> sheets = excelReader.excelExecutor().sheetList(); |
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int count = 1; |
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for (ReadSheet readSheet : sheets) { |
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excelReader.read(readSheet); |
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Assert.assertEquals((long)multipleSheetsListener.getList().size(), (long)count); |
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count++; |
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} |
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excelReader.finish(); |
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} |
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} |
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package com.alibaba.easyexcel.test.core.multiplesheets; |
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import java.util.ArrayList; |
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import java.util.List; |
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import org.junit.Assert; |
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import org.slf4j.Logger; |
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import org.slf4j.LoggerFactory; |
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import com.alibaba.easyexcel.test.core.parameter.ParameterData; |
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import com.alibaba.easyexcel.test.core.parameter.ParameterDataListener; |
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import com.alibaba.excel.context.AnalysisContext; |
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import com.alibaba.excel.event.AnalysisEventListener; |
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import com.alibaba.fastjson.JSON; |
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/** |
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* @author Jiaju Zhuang |
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*/ |
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public class MultipleSheetsListener extends AnalysisEventListener<MultipleSheetsData> { |
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private static final Logger LOGGER = LoggerFactory.getLogger(MultipleSheetsListener.class); |
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List<MultipleSheetsData> list = new ArrayList<MultipleSheetsData>(); |
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@Override |
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public void invoke(MultipleSheetsData data, AnalysisContext context) { |
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list.add(data); |
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} |
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@Override |
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public void doAfterAllAnalysed(AnalysisContext context) { |
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Assert.assertEquals(list.get(0).getTitle(), "表1数据"); |
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LOGGER.debug("All row:{}", JSON.toJSONString(list)); |
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} |
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public List<MultipleSheetsData> getList() { |
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return list; |
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} |
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public void setList(List<MultipleSheetsData> list) { |
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this.list = list; |
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} |
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} |
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