mirror of https://github.com/alibaba/easyexcel
Jiaju Zhuang
5 years ago
committed by
GitHub
39 changed files with 771 additions and 174 deletions
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package com.alibaba.excel.metadata.format; |
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import java.math.BigDecimal; |
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import java.math.MathContext; |
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import java.math.RoundingMode; |
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import java.text.DecimalFormat; |
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import java.text.DecimalFormatSymbols; |
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import java.text.FieldPosition; |
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import java.text.Format; |
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import java.text.ParsePosition; |
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import java.util.Locale; |
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import org.apache.poi.ss.usermodel.DataFormatter; |
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/** |
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* Written with reference to {@link org.apache.poi.ss.usermodel.ExcelGeneralNumberFormat }. |
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* <p> |
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* Supported Do not use scientific notation. |
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* |
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* @author JiaJu Zhuang |
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**/ |
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public class ExcelGeneralNumberFormat extends Format { |
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private static final long serialVersionUID = 1L; |
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private static final MathContext TO_10_SF = new MathContext(10, RoundingMode.HALF_UP); |
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private final DecimalFormatSymbols decimalSymbols; |
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private final DecimalFormat integerFormat; |
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private final DecimalFormat decimalFormat; |
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private final DecimalFormat scientificFormat; |
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public ExcelGeneralNumberFormat(final Locale locale, final boolean useScientificFormat) { |
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decimalSymbols = DecimalFormatSymbols.getInstance(locale); |
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// Supported Do not use scientific notation.
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if (useScientificFormat) { |
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scientificFormat = new DecimalFormat("0.#####E0", decimalSymbols); |
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} else { |
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scientificFormat = new DecimalFormat("#", decimalSymbols); |
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} |
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org.apache.poi.ss.usermodel.DataFormatter.setExcelStyleRoundingMode(scientificFormat); |
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integerFormat = new DecimalFormat("#", decimalSymbols); |
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org.apache.poi.ss.usermodel.DataFormatter.setExcelStyleRoundingMode(integerFormat); |
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decimalFormat = new DecimalFormat("#.##########", decimalSymbols); |
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DataFormatter.setExcelStyleRoundingMode(decimalFormat); |
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} |
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@Override |
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public StringBuffer format(Object number, StringBuffer toAppendTo, FieldPosition pos) { |
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final double value; |
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if (number instanceof Number) { |
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value = ((Number) number).doubleValue(); |
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if (Double.isInfinite(value) || Double.isNaN(value)) { |
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return integerFormat.format(number, toAppendTo, pos); |
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} |
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} else { |
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// testBug54786 gets here with a date, so retain previous behaviour
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return integerFormat.format(number, toAppendTo, pos); |
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} |
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final double abs = Math.abs(value); |
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if (abs >= 1E11 || (abs <= 1E-10 && abs > 0)) { |
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return scientificFormat.format(number, toAppendTo, pos); |
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} else if (Math.floor(value) == value || abs >= 1E10) { |
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// integer, or integer portion uses all 11 allowed digits
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return integerFormat.format(number, toAppendTo, pos); |
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} |
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// Non-integers of non-scientific magnitude are formatted as "up to 11
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// numeric characters, with the decimal point counting as a numeric
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// character". We know there is a decimal point, so limit to 10 digits.
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// https://support.microsoft.com/en-us/kb/65903
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final double rounded = new BigDecimal(value).round(TO_10_SF).doubleValue(); |
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return decimalFormat.format(rounded, toAppendTo, pos); |
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} |
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@Override |
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public Object parseObject(String source, ParsePosition pos) { |
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throw new UnsupportedOperationException(); |
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} |
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} |
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package com.alibaba.excel.write.merge; |
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import java.util.List; |
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import org.apache.poi.ss.usermodel.Cell; |
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import org.apache.poi.ss.usermodel.Row; |
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import org.apache.poi.ss.usermodel.Sheet; |
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import com.alibaba.excel.metadata.CellData; |
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import com.alibaba.excel.metadata.Head; |
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import com.alibaba.excel.write.handler.CellWriteHandler; |
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import com.alibaba.excel.write.metadata.holder.WriteSheetHolder; |
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import com.alibaba.excel.write.metadata.holder.WriteTableHolder; |
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/** |
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* Merge strategy |
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* |
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* @author Jiaju Zhuang |
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*/ |
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public abstract class AbstractMergeStrategy implements CellWriteHandler { |
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@Override |
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public void beforeCellCreate(WriteSheetHolder writeSheetHolder, WriteTableHolder writeTableHolder, Row row, |
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Head head, Integer columnIndex, Integer relativeRowIndex, Boolean isHead) { |
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} |
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@Override |
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public void afterCellCreate(WriteSheetHolder writeSheetHolder, WriteTableHolder writeTableHolder, Cell cell, |
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Head head, Integer relativeRowIndex, Boolean isHead) {} |
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@Override |
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public void afterCellDataConverted(WriteSheetHolder writeSheetHolder, |
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WriteTableHolder writeTableHolder, CellData cellData, Cell cell, Head head, Integer relativeRowIndex, |
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Boolean isHead) { |
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} |
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@Override |
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public void afterCellDispose(WriteSheetHolder writeSheetHolder, WriteTableHolder writeTableHolder, |
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List<CellData> cellDataList, Cell cell, Head head, Integer relativeRowIndex, Boolean isHead) { |
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if (isHead) { |
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return; |
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} |
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merge(writeSheetHolder.getSheet(), cell, head, relativeRowIndex); |
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} |
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/** |
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* merge |
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* |
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* @param sheet |
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* @param cell |
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* @param head |
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* @param relativeRowIndex |
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*/ |
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protected abstract void merge(Sheet sheet, Cell cell, Head head, Integer relativeRowIndex); |
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} |
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package com.alibaba.easyexcel.test.temp; |
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import java.util.ArrayList; |
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import java.util.List; |
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import org.apache.poi.ss.usermodel.BorderStyle; |
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import org.apache.poi.ss.usermodel.FillPatternType; |
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import org.apache.poi.ss.usermodel.HorizontalAlignment; |
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import org.apache.poi.ss.usermodel.IndexedColors; |
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import org.apache.poi.ss.usermodel.VerticalAlignment; |
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import org.junit.Ignore; |
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import org.junit.Test; |
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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.large.LargeData; |
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import com.alibaba.easyexcel.test.demo.write.DemoData; |
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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.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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/** |
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* 临时测试 |
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* |
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* @author Jiaju Zhuang |
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**/ |
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@Ignore |
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public class WriteLargeTest { |
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private static final Logger LOGGER = LoggerFactory.getLogger(WriteLargeTest.class); |
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private int i = 0; |
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@Test |
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public void test() 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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String fileName = TestFileUtil.getPath() + "large" + System.currentTimeMillis() + ".xlsx"; |
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// 头的策略
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WriteCellStyle headWriteCellStyle = new WriteCellStyle(); |
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// 背景设置为红色
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headWriteCellStyle.setFillForegroundColor(IndexedColors.RED.getIndex()); |
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WriteFont headWriteFont = new WriteFont(); |
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headWriteFont.setFontHeightInPoints((short)20); |
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headWriteCellStyle.setWriteFont(headWriteFont); |
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// 内容的策略
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WriteCellStyle contentWriteCellStyle = new WriteCellStyle(); |
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// 这里需要指定 FillPatternType 为FillPatternType.SOLID_FOREGROUND 不然无法显示背景颜色.头默认了 FillPatternType所以可以不指定
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contentWriteCellStyle.setFillPatternType(FillPatternType.SOLID_FOREGROUND); |
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// 背景绿色
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contentWriteCellStyle.setFillForegroundColor(IndexedColors.GREEN.getIndex()); |
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WriteFont contentWriteFont = new WriteFont(); |
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// 字体大小
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contentWriteFont.setFontHeightInPoints((short)20); |
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contentWriteCellStyle.setWriteFont(contentWriteFont); |
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// 这个策略是 头是头的样式 内容是内容的样式 其他的策略可以自己实现
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HorizontalCellStyleStrategy horizontalCellStyleStrategy = |
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new HorizontalCellStyleStrategy(headWriteCellStyle, contentWriteCellStyle); |
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ExcelWriter excelWriter = EasyExcel.write(fileName,LargeData.class).registerWriteHandler(horizontalCellStyleStrategy).build(); |
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WriteSheet writeSheet = EasyExcel.writerSheet().build(); |
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for (int j = 0; j < 100; j++) { |
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excelWriter.write(data(), writeSheet); |
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LOGGER.info("{} fill success.", j); |
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} |
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excelWriter.finish(); |
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} |
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private List<LargeData> data() { |
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List<LargeData> list = new ArrayList<LargeData>(); |
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int size = i + 5000; |
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for (; i < size; i++) { |
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LargeData largeData = new LargeData(); |
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list.add(largeData); |
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largeData.setStr1("str1-" + i); |
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largeData.setStr2("str2-" + i); |
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largeData.setStr3("str3-" + i); |
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largeData.setStr4("str4-" + i); |
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largeData.setStr5("str5-" + i); |
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largeData.setStr6("str6-" + i); |
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largeData.setStr7("str7-" + i); |
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largeData.setStr8("str8-" + i); |
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largeData.setStr9("str9-" + i); |
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largeData.setStr10("str10-" + i); |
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largeData.setStr11("str11-" + i); |
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largeData.setStr12("str12-" + i); |
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largeData.setStr13("str13-" + i); |
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largeData.setStr14("str14-" + i); |
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largeData.setStr15("str15-" + i); |
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largeData.setStr16("str16-" + i); |
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largeData.setStr17("str17-" + i); |
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largeData.setStr18("str18-" + i); |
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largeData.setStr19("str19-" + i); |
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largeData.setStr20("str20-" + i); |
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largeData.setStr21("str21-" + i); |
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largeData.setStr22("str22-" + i); |
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largeData.setStr23("str23-" + i); |
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largeData.setStr24("str24-" + i); |
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largeData.setStr25("str25-" + i); |
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} |
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return list; |
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} |
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} |
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package com.alibaba.easyexcel.test.temp; |
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import java.io.File; |
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import java.util.ArrayList; |
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import java.util.Date; |
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import java.util.List; |
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import org.apache.poi.hssf.util.CellReference; |
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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.Ignore; |
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import org.junit.Test; |
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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.demo.write.DemoData; |
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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.write.merge.OnceAbsoluteMergeStrategy; |
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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 com.alibaba.fastjson.JSON; |
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/** |
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* 临时测试 |
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* |
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* @author Jiaju Zhuang |
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**/ |
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@Ignore |
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public class WriteV33Test { |
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private static final Logger LOGGER = LoggerFactory.getLogger(WriteV33Test.class); |
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@Test |
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public void test() 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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String fileName = TestFileUtil.getPath() + "repeatedWrite" + System.currentTimeMillis() + ".xlsx"; |
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OnceAbsoluteMergeStrategy onceAbsoluteMergeStrategy = new OnceAbsoluteMergeStrategy(2, 2, 0, 1); |
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// 这里 指定文件
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ExcelWriter excelWriter = EasyExcel.write(fileName, DemoData.class).registerWriteHandler(onceAbsoluteMergeStrategy).build(); |
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WriteSheet writeSheet1 = EasyExcel.writerSheet(1, "模板1").build(); |
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WriteSheet writeSheet2 = EasyExcel.writerSheet(2, "模板2").build(); |
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WriteSheet writeSheet3 = EasyExcel.writerSheet(3, "模板3").build(); |
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excelWriter.write(data(2), writeSheet2); |
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excelWriter.write(data(3), writeSheet3); |
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excelWriter.write(data(1), writeSheet1); |
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excelWriter.write(data(3), writeSheet3); |
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excelWriter.write(data(1), writeSheet1); |
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/// 千万别忘记finish 会帮忙关闭流
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excelWriter.finish(); |
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} |
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private List<DemoData> data(int no) { |
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List<DemoData> list = new ArrayList<DemoData>(); |
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for (int i = 0; i < 10; i++) { |
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DemoData data = new DemoData(); |
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data.setString("字符串" + no + "---" + i); |
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list.add(data); |
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} |
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return list; |
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} |
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} |
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package com.alibaba.easyexcel.test.temp; |
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import java.util.ArrayList; |
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import java.util.List; |
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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.Ignore; |
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import org.junit.Test; |
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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.demo.write.DemoData; |
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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.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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/** |
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* 临时测试 |
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* |
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* @author Jiaju Zhuang |
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**/ |
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@Ignore |
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public class WriteV34Test { |
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private static final Logger LOGGER = LoggerFactory.getLogger(WriteV34Test.class); |
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@Test |
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public void test() throws Exception { |
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String fileName = TestFileUtil.getPath() + "handlerStyleWrite" + System.currentTimeMillis() + ".xlsx"; |
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// 头的策略
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WriteCellStyle headWriteCellStyle = new WriteCellStyle(); |
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// 背景设置为红色
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headWriteCellStyle.setFillForegroundColor(IndexedColors.RED.getIndex()); |
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WriteFont headWriteFont = new WriteFont(); |
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headWriteFont.setFontHeightInPoints((short)20); |
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headWriteCellStyle.setWriteFont(headWriteFont); |
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// 内容的策略
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WriteCellStyle contentWriteCellStyle = new WriteCellStyle(); |
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// 这里需要指定 FillPatternType 为FillPatternType.SOLID_FOREGROUND 不然无法显示背景颜色.头默认了 FillPatternType所以可以不指定
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contentWriteCellStyle.setFillPatternType(FillPatternType.SOLID_FOREGROUND); |
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// 背景绿色
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contentWriteCellStyle.setFillForegroundColor(IndexedColors.GREEN.getIndex()); |
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WriteFont contentWriteFont = new WriteFont(); |
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// 字体大小
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contentWriteFont.setFontHeightInPoints((short)20); |
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contentWriteCellStyle.setWriteFont(contentWriteFont); |
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// 这个策略是 头是头的样式 内容是内容的样式 其他的策略可以自己实现
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HorizontalCellStyleStrategy horizontalCellStyleStrategy = |
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new HorizontalCellStyleStrategy(headWriteCellStyle, contentWriteCellStyle); |
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// 这里 需要指定写用哪个class去写，然后写到第一个sheet，名字为模板 然后文件流会自动关闭
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EasyExcel.write(fileName,DemoData.class).head(head()).registerWriteHandler(horizontalCellStyleStrategy).sheet("模板") |
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.doWrite(data(1)); |
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} |
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private List<List<String>> head() { |
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List<List<String>> list = new ArrayList<List<String>>(); |
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List<String> head0 = new ArrayList<String>(); |
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head0.add("字符串" + System.currentTimeMillis()); |
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head0.add("再找找"); |
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List<String> head1 = new ArrayList<String>(); |
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head1.add("数字" + System.currentTimeMillis()); |
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List<String> head2 = new ArrayList<String>(); |
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head2.add("日期" + System.currentTimeMillis()); |
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List<String> head3 = new ArrayList<String>(); |
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head3.add("日期" + System.currentTimeMillis()); |
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list.add(head0); |
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list.add(head1); |
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list.add(head2); list.add(head3); |
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return list; |
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} |
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private List<DemoData> data(int no) { |
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List<DemoData> list = new ArrayList<DemoData>(); |
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for (int i = 0; i < 10; i++) { |
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DemoData data = new DemoData(); |
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data.setString("字符串" + no + "---" + i); |
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list.add(data); |
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} |
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return list; |
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} |
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} |
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