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@ -1,17 +1,35 @@
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package com.alibaba.easyexcel.test.temp; |
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import java.io.File; |
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import java.io.FileInputStream; |
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import java.io.InputStream; |
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import java.util.ArrayList; |
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import java.util.List; |
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import java.util.Map; |
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import com.alibaba.easyexcel.test.core.large.LargeData; |
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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.ExcelWriter; |
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import com.alibaba.excel.read.listener.PageReadListener; |
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import com.alibaba.excel.write.metadata.WriteSheet; |
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import com.alibaba.excel.write.metadata.style.WriteCellStyle; |
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import com.alibaba.excel.write.metadata.style.WriteFont; |
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import com.alibaba.excel.write.style.HorizontalCellStyleStrategy; |
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import lombok.extern.slf4j.Slf4j; |
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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.record.BOFRecord; |
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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.hssf.record.SSTRecord; |
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import org.apache.poi.hssf.usermodel.HSSFCell; |
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import org.apache.poi.hssf.usermodel.HSSFRow; |
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import org.apache.poi.hssf.usermodel.HSSFSheet; |
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import org.apache.poi.hssf.usermodel.HSSFWorkbook; |
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import org.apache.poi.poifs.filesystem.POIFSFileSystem; |
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import org.apache.poi.ss.usermodel.FillPatternType; |
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import org.apache.poi.ss.usermodel.IndexedColors; |
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import org.junit.jupiter.api.Test; |
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@ -24,6 +42,7 @@ import org.slf4j.LoggerFactory;
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* @author Jiaju Zhuang |
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**/ |
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@Slf4j |
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public class WriteLargeTest { |
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private static final Logger LOGGER = LoggerFactory.getLogger(WriteLargeTest.class); |
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@ -64,6 +83,91 @@ public class WriteLargeTest {
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} |
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@Test |
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public void read() throws Exception { |
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log.info("start"); |
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String fileName = "/Users/zhuangjiaju/Downloads/1e9e0578a9634abbbbd9b67f338f142a.xls"; |
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// 这里 需要指定读用哪个class去读，然后读取第一个sheet 文件流会自动关闭
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// 这里默认每次会读取100条数据 然后返回过来 直接调用使用数据就行
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// 具体需要返回多少行可以在`PageReadListener`的构造函数设置
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EasyExcel.read(fileName, new PageReadListener<List<Map<String, String>>>(dataList -> { |
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log.info("SIZEL：{}", dataList.size()); |
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})).sheet().doRead(); |
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log.info("test"); |
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} |
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@Test |
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public void read2() throws Exception { |
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// 使用输入的文件创建一个新的文件输入流
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//FileInputStream fin = new FileInputStream("/Users/zhuangjiaju/Downloads/1e9e0578a9634abbbbd9b67f338f142a
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// .xls");
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// 创建一个新的org.apache.poi.poifs.filesystem.Filesystem
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POIFSFileSystem poifs = new POIFSFileSystem( |
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new File("/Users/zhuangjiaju/Downloads/1e9e0578a9634abbbbd9b67f338f142a.xls")); |
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// 在InputStream中获取Workbook流
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InputStream din = poifs.createDocumentInputStream("Workbook"); |
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// 构造出HSSFRequest对象
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HSSFRequest req = new HSSFRequest(); |
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// 注册全部的监听器
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req.addListenerForAllRecords(new EventExample()); |
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// 创建事件工厂
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HSSFEventFactory factory = new HSSFEventFactory(); |
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// 根据文档输入流处理我们监听的事件
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factory.processEvents(req, din); |
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// 关闭文件输入流
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//fin.close();
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// 关闭文档输入流
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din.close(); |
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System.out.println("读取结束"); |
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} |
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@Test |
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public void read3() throws Exception { |
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HSSFWorkbook hwb = new HSSFWorkbook( |
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new FileInputStream("/Users/zhuangjiaju/Downloads/1e9e0578a9634abbbbd9b67f338f142a.xls")); |
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HSSFSheet sheet = hwb.getSheetAt(0); |
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HSSFRow row = null; |
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HSSFCell cell = null; |
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for (int i = sheet.getFirstRowNum(); i <= sheet.getPhysicalNumberOfRows(); i++) { |
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row = sheet.getRow(i); |
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if(row!=null){ |
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log.info("r:{}",row.getRowNum()); |
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} |
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} |
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log.info("end"); |
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} |
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public static class EventExample implements HSSFListener { |
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private SSTRecord sstrec; |
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/** |
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* 此方法监听传入记录并根据需要处理它们 |
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* |
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* @param record读取时找到的记录 |
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*/ |
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public void processRecord(Record record) { |
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switch (record.getSid()) { |
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//BOFRecord可以表示工作表或工作簿的开头
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case BOFRecord.sid: |
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BOFRecord bof = (BOFRecord)record; |
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if (bof.getType() == bof.TYPE_WORKBOOK) { |
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System.out.println("监听到工作表"); |
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} else if (bof.getType() == bof.TYPE_WORKSHEET) { |
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System.out.println("监听到工作簿"); |
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} |
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break; |
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case BoundSheetRecord.sid: |
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BoundSheetRecord bsr = (BoundSheetRecord)record; |
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System.out.println("工作簿名称: " + bsr.getSheetname()); |
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break; |
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} |
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} |
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} |
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@Test |
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public void test2() throws Exception { |
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// 方法2 如果写到不同的sheet 同一个对象
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Jiaju Zhuang
1 year ago
committed by
GitHub