Merge pull request #745 from alibaba/2.1.x

2.1.x

pom.xml

@@ -4,7 +4,7 @@
     <modelVersion>4.0.0</modelVersion>
     <groupId>com.alibaba</groupId>
     <artifactId>easyexcel</artifactId>
-    <version>2.1.0-beta2</version>
+    <version>2.1.0-beta3</version>
     <packaging>jar</packaging>
     <name>easyexcel</name>
 

src/main/java/com/alibaba/excel/analysis/ExcelAnalyserImpl.java

@@ -129,26 +129,28 @@ public class ExcelAnalyserImpl implements ExcelAnalyser {
         }
         ReadWorkbookHolder readWorkbookHolder = analysisContext.readWorkbookHolder();
 
+        Throwable throwable = null;
+
         try {
             if (readWorkbookHolder.getReadCache() != null) {
                 readWorkbookHolder.getReadCache().destroy();
             }
         } catch (Throwable t) {
-            throwCanNotCloseIo(t);
+            throwable = t;
         }
         try {
             if (readWorkbookHolder.getOpcPackage() != null) {
                 readWorkbookHolder.getOpcPackage().revert();
             }
         } catch (Throwable t) {
-            throwCanNotCloseIo(t);
+            throwable = t;
         }
         try {
             if (readWorkbookHolder.getPoifsFileSystem() != null) {
                 readWorkbookHolder.getPoifsFileSystem().close();
             }
         } catch (Throwable t) {
-            throwCanNotCloseIo(t);
+            throwable = t;
         }
         try {
             if (analysisContext.readWorkbookHolder().getAutoCloseStream()
@@ -156,17 +158,21 @@ public class ExcelAnalyserImpl implements ExcelAnalyser {
                 readWorkbookHolder.getInputStream().close();
             }
         } catch (Throwable t) {
-            throwCanNotCloseIo(t);
+            throwable = t;
         }
         try {
             if (readWorkbookHolder.getTempFile() != null) {
                 FileUtils.delete(readWorkbookHolder.getTempFile());
             }
         } catch (Throwable t) {
-            throwCanNotCloseIo(t);
+            throwable = t;
         }
 
         clearEncrypt03();
+
+        if (throwable != null) {
+            throw new ExcelAnalysisException("Can not close IO", throwable);
+        }
     }
 
     private void clearEncrypt03() {
@@ -177,10 +183,6 @@ public class ExcelAnalyserImpl implements ExcelAnalyser {
         Biff8EncryptionKey.setCurrentUserPassword(null);
     }
 
-    private void throwCanNotCloseIo(Throwable t) {
-        throw new ExcelAnalysisException("Can not close IO", t);
-    }
-
     @Override
     public ExcelReadExecutor excelExecutor() {
         return excelReadExecutor;

src/main/java/com/alibaba/excel/analysis/v07/XlsxSaxAnalyser.java

@@ -15,7 +15,6 @@ import javax.xml.parsers.SAXParserFactory;
 import org.apache.poi.openxml4j.opc.OPCPackage;
 import org.apache.poi.openxml4j.opc.PackageAccess;
 import org.apache.poi.openxml4j.opc.PackagePart;
-import org.apache.poi.ss.usermodel.Sheet;
 import org.apache.poi.xssf.eventusermodel.XSSFReader;
 import org.apache.poi.xssf.model.StylesTable;
 import org.apache.poi.xssf.usermodel.XSSFRelation;
@@ -35,7 +34,6 @@ import com.alibaba.excel.read.metadata.holder.ReadWorkbookHolder;
 import com.alibaba.excel.util.CollectionUtils;
 import com.alibaba.excel.util.FileUtils;
 import com.alibaba.excel.util.SheetUtils;
-import com.alibaba.excel.util.StringUtils;
 
 /**
  *

src/main/java/com/alibaba/excel/context/WriteContextImpl.java

@@ -179,6 +179,7 @@ public class WriteContextImpl implements WriteContext {
             Row row = WorkBookUtil.createRow(writeSheetHolder.getSheet(), i);
             WriteHandlerUtils.afterRowCreate(this, row, relativeRowIndex, Boolean.TRUE);
             addOneRowOfHeadDataToExcel(row, excelWriteHeadProperty.getHeadMap(), relativeRowIndex);
+            WriteHandlerUtils.afterRowDispose(this, row, relativeRowIndex, Boolean.FALSE);
         }
     }
 
@@ -197,8 +198,7 @@ public class WriteContextImpl implements WriteContext {
             Cell cell = row.createCell(columnIndex);
             WriteHandlerUtils.afterCellCreate(this, cell, head, relativeRowIndex, Boolean.TRUE);
             cell.setCellValue(head.getHeadNameList().get(relativeRowIndex));
-            CellData cellData = null;
-            WriteHandlerUtils.afterCellDispose(this, cellData, cell, head, relativeRowIndex, Boolean.TRUE);
+            WriteHandlerUtils.afterCellDispose(this, (CellData)null, cell, head, relativeRowIndex, Boolean.TRUE);
         }
     }
 
@@ -261,12 +261,13 @@ public class WriteContextImpl implements WriteContext {
         if (writeWorkbookHolder == null) {
             return;
         }
+        Throwable throwable = null;
 
         boolean isOutputStreamEncrypt = false;
         try {
             isOutputStreamEncrypt = doOutputStreamEncrypt07();
         } catch (Throwable t) {
-            throwCanNotCloseIo(t);
+            throwable = t;
         }
 
         if (!isOutputStreamEncrypt) {
@@ -274,7 +275,7 @@ public class WriteContextImpl implements WriteContext {
                 writeWorkbookHolder.getWorkbook().write(writeWorkbookHolder.getOutputStream());
                 writeWorkbookHolder.getWorkbook().close();
             } catch (Throwable t) {
-                throwCanNotCloseIo(t);
+                throwable = t;
             }
         }
 
@@ -284,7 +285,7 @@ public class WriteContextImpl implements WriteContext {
                 ((SXSSFWorkbook)workbook).dispose();
             }
         } catch (Throwable t) {
-            throwCanNotCloseIo(t);
+            throwable = t;
         }
 
         try {
@@ -292,14 +293,14 @@ public class WriteContextImpl implements WriteContext {
                 writeWorkbookHolder.getOutputStream().close();
             }
         } catch (Throwable t) {
-            throwCanNotCloseIo(t);
+            throwable = t;
         }
 
         if (!isOutputStreamEncrypt) {
             try {
                 doFileEncrypt07();
             } catch (Throwable t) {
-                throwCanNotCloseIo(t);
+                throwable = t;
             }
         }
 
@@ -308,20 +309,20 @@ public class WriteContextImpl implements WriteContext {
                 writeWorkbookHolder.getTempTemplateInputStream().close();
             }
         } catch (Throwable t) {
-            throwCanNotCloseIo(t);
+            throwable = t;
         }
 
         clearEncrypt03();
 
+        if (throwable != null) {
+            throw new ExcelGenerateException("Can not close IO", throwable);
+        }
+
         if (LOGGER.isDebugEnabled()) {
             LOGGER.debug("Finished write.");
         }
     }
 
-    private void throwCanNotCloseIo(Throwable t) {
-        throw new ExcelGenerateException("Can not close IO", t);
-    }
-
     @Override
     public Sheet getCurrentSheet() {
         return writeSheetHolder.getSheet();

src/main/java/com/alibaba/excel/metadata/property/ExcelHeadProperty.java

@@ -17,14 +17,15 @@ import com.alibaba.excel.annotation.ExcelIgnoreUnannotated;
 import com.alibaba.excel.annotation.ExcelProperty;
 import com.alibaba.excel.annotation.format.DateTimeFormat;
 import com.alibaba.excel.annotation.format.NumberFormat;
-import com.alibaba.excel.annotation.write.style.ColumnWidth;
 import com.alibaba.excel.converters.AutoConverter;
 import com.alibaba.excel.converters.Converter;
 import com.alibaba.excel.enums.HeadKindEnum;
 import com.alibaba.excel.exception.ExcelCommonException;
 import com.alibaba.excel.exception.ExcelGenerateException;
 import com.alibaba.excel.metadata.Head;
+import com.alibaba.excel.metadata.Holder;
 import com.alibaba.excel.util.StringUtils;
+import com.alibaba.excel.write.metadata.holder.AbstractWriteHolder;
 
 /**
  * Define the header attribute of excel
@@ -46,7 +47,6 @@ public class ExcelHeadProperty {
      * The number of rows in the line with the most rows
      */
     private int headRowNumber;
-
     /**
      * Configuration header information
      */
@@ -64,7 +64,7 @@ public class ExcelHeadProperty {
      */
     private Map<String, Field> ignoreMap;
 
-    public ExcelHeadProperty(Class headClazz, List<List<String>> head, Boolean convertAllFiled) {
+    public ExcelHeadProperty(Holder holder, Class headClazz, List<List<String>> head, Boolean convertAllFiled) {
         this.headClazz = headClazz;
         headMap = new TreeMap<Integer, Head>();
         contentPropertyMap = new TreeMap<Integer, ExcelContentProperty>();
@@ -73,14 +73,21 @@ public class ExcelHeadProperty {
         headKind = HeadKindEnum.NONE;
         headRowNumber = 0;
         if (head != null && !head.isEmpty()) {
+            int headIndex = 0;
             for (int i = 0; i < head.size(); i++) {
-                headMap.put(i, new Head(i, null, head.get(i), Boolean.FALSE, Boolean.TRUE));
-                contentPropertyMap.put(i, null);
+                if (holder instanceof AbstractWriteHolder) {
+                    if (((AbstractWriteHolder)holder).ignore(null, i)) {
+                        continue;
+                    }
+                }
+                headMap.put(headIndex, new Head(headIndex, null, head.get(i), Boolean.FALSE, Boolean.TRUE));
+                contentPropertyMap.put(headIndex, null);
+                headIndex++;
             }
             headKind = HeadKindEnum.STRING;
         } else {
             // convert headClazz to head
-            initColumnProperties(convertAllFiled);
+            initColumnProperties(holder, convertAllFiled);
         }
         initHeadRowNumber();
         if (LOGGER.isDebugEnabled()) {
@@ -108,7 +115,7 @@ public class ExcelHeadProperty {
         }
     }
 
-    private void initColumnProperties(Boolean convertAllFiled) {
+    private void initColumnProperties(Holder holder, Boolean convertAllFiled) {
         if (headClazz == null) {
             return;
         }
@@ -161,20 +168,37 @@ public class ExcelHeadProperty {
         int index = 0;
         for (Field field : defaultFieldList) {
             while (customFiledMap.containsKey(index)) {
-                initOneColumnProperty(index, customFiledMap.get(index), Boolean.TRUE);
+                Field customFiled = customFiledMap.get(index);
                 customFiledMap.remove(index);
+                if (!initOneColumnProperty(holder, index, customFiled, Boolean.TRUE)) {
+                    index++;
+                }
+            }
+            if (!initOneColumnProperty(holder, index, field, Boolean.FALSE)) {
                 index++;
             }
-            initOneColumnProperty(index, field, Boolean.FALSE);
-            index++;
         }
         for (Map.Entry<Integer, Field> entry : customFiledMap.entrySet()) {
-            initOneColumnProperty(entry.getKey(), entry.getValue(), Boolean.TRUE);
+            initOneColumnProperty(holder, entry.getKey(), entry.getValue(), Boolean.TRUE);
         }
         headKind = HeadKindEnum.CLASS;
     }
 
-    private void initOneColumnProperty(int index, Field field, Boolean forceIndex) {
+    /**
+     * Initialization column property
+     *
+     * @param holder
+     * @param index
+     * @param field
+     * @param forceIndex
+     * @return Ignore current field
+     */
+    private boolean initOneColumnProperty(Holder holder, int index, Field field, Boolean forceIndex) {
+        if (holder instanceof AbstractWriteHolder) {
+            if (((AbstractWriteHolder)holder).ignore(field.getName(), index)) {
+                return true;
+            }
+        }
         ExcelProperty excelProperty = field.getAnnotation(ExcelProperty.class);
         List<String> tmpHeadList = new ArrayList<String>();
         boolean notForceName = excelProperty == null || excelProperty.value().length <= 0
@@ -206,6 +230,7 @@ public class ExcelHeadProperty {
         headMap.put(index, head);
         contentPropertyMap.put(index, excelContentProperty);
         fieldNameContentPropertyMap.put(field.getName(), excelContentProperty);
+        return false;
     }
 
     public Class getHeadClazz() {

src/main/java/com/alibaba/excel/read/metadata/holder/AbstractReadHolder.java

@@ -70,7 +70,7 @@ public abstract class AbstractReadHolder extends AbstractHolder implements ReadH
         }
 
         // Initialization property
-        this.excelReadHeadProperty = new ExcelReadHeadProperty(getClazz(), getHead(), convertAllFiled);
+        this.excelReadHeadProperty = new ExcelReadHeadProperty(this, getClazz(), getHead(), convertAllFiled);
         if (readBasicParameter.getHeadRowNumber() == null) {
             if (parentAbstractReadHolder == null) {
                 if (excelReadHeadProperty.hasHead()) {

src/main/java/com/alibaba/excel/read/metadata/property/ExcelReadHeadProperty.java

@@ -2,6 +2,7 @@ package com.alibaba.excel.read.metadata.property;
 
 import java.util.List;
 
+import com.alibaba.excel.metadata.Holder;
 import com.alibaba.excel.metadata.property.ExcelHeadProperty;
 
 /**
@@ -11,7 +12,7 @@ import com.alibaba.excel.metadata.property.ExcelHeadProperty;
  */
 public class ExcelReadHeadProperty extends ExcelHeadProperty {
 
-    public ExcelReadHeadProperty(Class headClazz, List<List<String>> head, Boolean convertAllFiled) {
-        super(headClazz, head, convertAllFiled);
+    public ExcelReadHeadProperty(Holder holder, Class headClazz, List<List<String>> head, Boolean convertAllFiled) {
+        super(holder, headClazz, head, convertAllFiled);
     }
 }

src/main/java/com/alibaba/excel/util/WorkBookUtil.java

@@ -31,12 +31,21 @@ public class WorkBookUtil {
             if (writeWorkbookHolder.getTempTemplateInputStream() != null) {
                 XSSFWorkbook xssfWorkbook = new XSSFWorkbook(writeWorkbookHolder.getTempTemplateInputStream());
                 writeWorkbookHolder.setCachedWorkbook(xssfWorkbook);
-                writeWorkbookHolder.setWorkbook(new SXSSFWorkbook(xssfWorkbook, ROW_ACCESS_WINDOW_SIZE));
+                if (writeWorkbookHolder.getInMemory()) {
+                    writeWorkbookHolder.setWorkbook(xssfWorkbook);
+                } else {
+                    writeWorkbookHolder.setWorkbook(new SXSSFWorkbook(xssfWorkbook, ROW_ACCESS_WINDOW_SIZE));
+                }
                 return;
             }
-            SXSSFWorkbook sxssWorkbook = new SXSSFWorkbook(ROW_ACCESS_WINDOW_SIZE);
-            writeWorkbookHolder.setCachedWorkbook(sxssWorkbook);
-            writeWorkbookHolder.setWorkbook(sxssWorkbook);
+            Workbook workbook = null;
+            if (writeWorkbookHolder.getInMemory()) {
+                workbook = new XSSFWorkbook();
+            } else {
+                workbook = new SXSSFWorkbook(ROW_ACCESS_WINDOW_SIZE);
+            }
+            writeWorkbookHolder.setCachedWorkbook(workbook);
+            writeWorkbookHolder.setWorkbook(workbook);
             return;
         }
         HSSFWorkbook hssfWorkbook;

src/main/java/com/alibaba/excel/write/builder/ExcelWriterBuilder.java

@@ -4,6 +4,7 @@ import java.io.File;
 import java.io.InputStream;
 import java.io.OutputStream;
 import java.util.ArrayList;
+import java.util.Collection;
 import java.util.List;
 
 import com.alibaba.excel.ExcelWriter;
@@ -103,6 +104,48 @@ public class ExcelWriterBuilder {
         return this;
     }
 
+    /**
+     * Write excel in memory. Default false,the cache file is created and finally written to excel.
+     * <p>
+     * Comment and RichTextString are only supported in memory mode.
+     */
+    public ExcelWriterBuilder inMemory(Boolean inMemory) {
+        writeWorkbook.setInMemory(inMemory);
+        return this;
+    }
+
+    /**
+     * Ignore the custom columns.
+     */
+    public ExcelWriterBuilder excludeColumnIndexes(Collection<Integer> excludeColumnIndexes) {
+        writeWorkbook.setExcludeColumnIndexes(excludeColumnIndexes);
+        return this;
+    }
+
+    /**
+     * Ignore the custom columns.
+     */
+    public ExcelWriterBuilder excludeColumnFiledNames(Collection<String> excludeColumnFiledNames) {
+        writeWorkbook.setExcludeColumnFiledNames(excludeColumnFiledNames);
+        return this;
+    }
+
+    /**
+     * Only output the custom columns.
+     */
+    public ExcelWriterBuilder includeColumnIndexes(Collection<Integer> includeColumnIndexes) {
+        writeWorkbook.setIncludeColumnIndexes(includeColumnIndexes);
+        return this;
+    }
+
+    /**
+     * Only output the custom columns.
+     */
+    public ExcelWriterBuilder includeColumnFiledNames(Collection<String> includeColumnFiledNames) {
+        writeWorkbook.setIncludeColumnFiledNames(includeColumnFiledNames);
+        return this;
+    }
+
     /**
      * The default is all excel objects.if true , you can use {@link com.alibaba.excel.annotation.ExcelIgnore} ignore a
      * field. if false , you must use {@link com.alibaba.excel.annotation.ExcelProperty} to use a filed.

src/main/java/com/alibaba/excel/write/builder/ExcelWriterSheetBuilder.java

 package com.alibaba.excel.write.builder;
 
 import java.util.ArrayList;
+import java.util.Collection;
 import java.util.List;
 
 import com.alibaba.excel.ExcelWriter;
@@ -135,6 +136,38 @@ public class ExcelWriterSheetBuilder {
         return this;
     }
 
+    /**
+     * Ignore the custom columns.
+     */
+    public ExcelWriterSheetBuilder excludeColumnIndexes(Collection<Integer> excludeColumnIndexes) {
+        writeSheet.setExcludeColumnIndexes(excludeColumnIndexes);
+        return this;
+    }
+
+    /**
+     * Ignore the custom columns.
+     */
+    public ExcelWriterSheetBuilder excludeColumnFiledNames(Collection<String> excludeColumnFiledNames) {
+        writeSheet.setExcludeColumnFiledNames(excludeColumnFiledNames);
+        return this;
+    }
+
+    /**
+     * Only output the custom columns.
+     */
+    public ExcelWriterSheetBuilder includeColumnIndexes(Collection<Integer> includeColumnIndexes) {
+        writeSheet.setIncludeColumnIndexes(includeColumnIndexes);
+        return this;
+    }
+
+    /**
+     * Only output the custom columns.
+     */
+    public ExcelWriterSheetBuilder includeColumnFiledNames(Collection<String> includeColumnFiledNames) {
+        writeSheet.setIncludeColumnFiledNames(includeColumnFiledNames);
+        return this;
+    }
+
     public WriteSheet build() {
         return writeSheet;
     }

src/main/java/com/alibaba/excel/write/builder/ExcelWriterTableBuilder.java

 package com.alibaba.excel.write.builder;
 
 import java.util.ArrayList;
+import java.util.Collection;
 import java.util.List;
 
 import com.alibaba.excel.ExcelWriter;
@@ -128,6 +129,39 @@ public class ExcelWriterTableBuilder {
         return this;
     }
 
+
+    /**
+     * Ignore the custom columns.
+     */
+    public ExcelWriterTableBuilder excludeColumnIndexes(Collection<Integer> excludeColumnIndexes) {
+        writeTable.setExcludeColumnIndexes(excludeColumnIndexes);
+        return this;
+    }
+
+    /**
+     * Ignore the custom columns.
+     */
+    public ExcelWriterTableBuilder excludeColumnFiledNames(Collection<String> excludeColumnFiledNames) {
+        writeTable.setExcludeColumnFiledNames(excludeColumnFiledNames);
+        return this;
+    }
+
+    /**
+     * Only output the custom columns.
+     */
+    public ExcelWriterTableBuilder includeColumnIndexes(Collection<Integer> includeColumnIndexes) {
+        writeTable.setIncludeColumnIndexes(includeColumnIndexes);
+        return this;
+    }
+
+    /**
+     * Only output the custom columns.
+     */
+    public ExcelWriterTableBuilder includeColumnFiledNames(Collection<String> includeColumnFiledNames) {
+        writeSheet.setIncludeColumnFiledNames(includeColumnFiledNames);
+        return this;
+    }
+
     public WriteTable build() {
         return writeTable;
     }

src/main/java/com/alibaba/excel/write/executor/ExcelWriteAddExecutor.java

@@ -98,6 +98,9 @@ public class ExcelWriteAddExecutor extends AbstractExcelWriteExecutor {
 
     private void doAddBasicTypeToExcel(List<Object> oneRowData, Head head, Row row, int relativeRowIndex, int dataIndex,
         int cellIndex) {
+        if (writeContext.currentWriteHolder().ignore(null, cellIndex)) {
+            return;
+        }
         WriteHandlerUtils.beforeCellCreate(writeContext, row, head, cellIndex, relativeRowIndex, Boolean.FALSE);
         Cell cell = WorkBookUtil.createCell(row, cellIndex);
         WriteHandlerUtils.afterCellCreate(writeContext, cell, head, relativeRowIndex, Boolean.FALSE);
@@ -121,6 +124,9 @@ public class ExcelWriteAddExecutor extends AbstractExcelWriteExecutor {
                 cellIndex = entry.getKey();
                 ExcelContentProperty excelContentProperty = entry.getValue();
                 String name = excelContentProperty.getField().getName();
+                if (writeContext.currentWriteHolder().ignore(name, cellIndex)) {
+                    continue;
+                }
                 if (!beanMap.containsKey(name)) {
                     continue;
                 }
@@ -147,7 +153,7 @@ public class ExcelWriteAddExecutor extends AbstractExcelWriteExecutor {
         for (Field field : fieldList) {
             String filedName = field.getName();
             boolean uselessData = !beanMap.containsKey(filedName) || beanMapHandledSet.contains(filedName)
-                || ignoreMap.containsKey(filedName);
+                || ignoreMap.containsKey(filedName) || writeContext.currentWriteHolder().ignore(filedName, cellIndex);
             if (uselessData) {
                 continue;
             }

src/main/java/com/alibaba/excel/write/executor/ExcelWriteFillExecutor.java

@@ -9,6 +9,7 @@ import java.util.Map;
 
 import org.apache.poi.ss.usermodel.Cell;
 import org.apache.poi.ss.usermodel.CellStyle;
+import org.apache.poi.ss.usermodel.CellType;
 import org.apache.poi.ss.usermodel.Row;
 import org.apache.poi.ss.usermodel.Sheet;
 
@@ -141,6 +142,9 @@ public class ExcelWriteFillExecutor extends AbstractExcelWriteExecutor {
             Cell cell = getOneCell(analysisCell, fillConfig);
             if (analysisCell.getOnlyOneVariable()) {
                 String variable = analysisCell.getVariableList().get(0);
+                if (writeContext.currentWriteHolder().ignore(variable, analysisCell.getColumnIndex())) {
+                    continue;
+                }
                 if (!dataMap.containsKey(variable)) {
                     continue;
                 }
@@ -154,6 +158,9 @@ public class ExcelWriteFillExecutor extends AbstractExcelWriteExecutor {
                 List<CellData> cellDataList = new ArrayList<CellData>();
                 for (String variable : analysisCell.getVariableList()) {
                     cellValueBuild.append(analysisCell.getPrepareDataList().get(index++));
+                    if (writeContext.currentWriteHolder().ignore(variable, analysisCell.getColumnIndex())) {
+                        continue;
+                    }
                     if (!dataMap.containsKey(variable)) {
                         continue;
                     }
@@ -279,11 +286,10 @@ public class ExcelWriteFillExecutor extends AbstractExcelWriteExecutor {
                 if (cell == null) {
                     continue;
                 }
-                boolean needFill =
-                    prepareData(cell.getStringCellValue(), analysisCellList, collectionAnalysisCellList, i, j);
+                String preparedData = prepareData(cell, analysisCellList, collectionAnalysisCellList, i, j);
                 // Prevent empty data from not being replaced
-                if (needFill) {
-                    cell.setCellValue(StringUtils.EMPTY);
+                if (preparedData != null) {
+                    cell.setCellValue(preparedData);
                 }
             }
         }
@@ -295,18 +301,23 @@ public class ExcelWriteFillExecutor extends AbstractExcelWriteExecutor {
     /**
      * To prepare data
      *
-     * @param value
+     * @param cell
      * @param analysisCellList
      * @param collectionAnalysisCellList
      * @param rowIndex
      * @param columnIndex
-     * @return Is a cell to be filled
+     * @return Returns the data that the cell needs to replace
      */
-    private boolean prepareData(String value, List<AnalysisCell> analysisCellList,
+    private String prepareData(Cell cell, List<AnalysisCell> analysisCellList,
         List<AnalysisCell> collectionAnalysisCellList, int rowIndex, int columnIndex) {
+        if (!CellType.STRING.equals(cell.getCellTypeEnum())) {
+            return null;
+        }
+        String value = cell.getStringCellValue();
         if (StringUtils.isEmpty(value)) {
-            return false;
+            return null;
         }
+        StringBuilder preparedData = new StringBuilder();
         AnalysisCell analysisCell = null;
         int startIndex = 0;
         int length = value.length();
@@ -354,8 +365,9 @@ public class ExcelWriteFillExecutor extends AbstractExcelWriteExecutor {
             if (lastPrepareDataIndex == prefixIndex) {
                 analysisCell.getPrepareDataList().add(StringUtils.EMPTY);
             } else {
-                analysisCell.getPrepareDataList()
-                    .add(convertPrepareData(value.substring(lastPrepareDataIndex, prefixIndex)));
+                String data = convertPrepareData(value.substring(lastPrepareDataIndex, prefixIndex));
+                preparedData.append(data);
+                analysisCell.getPrepareDataList().add(data);
                 analysisCell.setOnlyOneVariable(Boolean.FALSE);
             }
             lastPrepareDataIndex = suffixIndex + 1;
@@ -372,9 +384,9 @@ public class ExcelWriteFillExecutor extends AbstractExcelWriteExecutor {
             } else {
                 collectionAnalysisCellList.add(analysisCell);
             }
-            return true;
+            return preparedData.toString();
         }
-        return false;
+        return null;
     }
 
     private AnalysisCell initAnalysisCell(Integer rowIndex, Integer columnIndex) {

src/main/java/com/alibaba/excel/write/metadata/WriteBasicParameter.java

 package com.alibaba.excel.write.metadata;
 
 import java.util.ArrayList;
+import java.util.Collection;
 import java.util.List;
 
 import com.alibaba.excel.metadata.BasicParameter;
@@ -28,6 +29,22 @@ public class WriteBasicParameter extends BasicParameter {
      * Use the default style.Default is true.
      */
     private Boolean useDefaultStyle;
+    /**
+     * Ignore the custom columns.
+     */
+    private Collection<Integer> excludeColumnIndexes;
+    /**
+     * Ignore the custom columns.
+     */
+    private Collection<String> excludeColumnFiledNames;
+    /**
+     * Only output the custom columns.
+     */
+    private Collection<Integer> includeColumnIndexes;
+    /**
+     * Only output the custom columns.
+     */
+    private Collection<String> includeColumnFiledNames;
 
     public Integer getRelativeHeadRowIndex() {
         return relativeHeadRowIndex;
@@ -60,4 +77,36 @@ public class WriteBasicParameter extends BasicParameter {
     public void setUseDefaultStyle(Boolean useDefaultStyle) {
         this.useDefaultStyle = useDefaultStyle;
     }
+
+    public Collection<Integer> getExcludeColumnIndexes() {
+        return excludeColumnIndexes;
+    }
+
+    public void setExcludeColumnIndexes(Collection<Integer> excludeColumnIndexes) {
+        this.excludeColumnIndexes = excludeColumnIndexes;
+    }
+
+    public Collection<String> getExcludeColumnFiledNames() {
+        return excludeColumnFiledNames;
+    }
+
+    public void setExcludeColumnFiledNames(Collection<String> excludeColumnFiledNames) {
+        this.excludeColumnFiledNames = excludeColumnFiledNames;
+    }
+
+    public Collection<Integer> getIncludeColumnIndexes() {
+        return includeColumnIndexes;
+    }
+
+    public void setIncludeColumnIndexes(Collection<Integer> includeColumnIndexes) {
+        this.includeColumnIndexes = includeColumnIndexes;
+    }
+
+    public Collection<String> getIncludeColumnFiledNames() {
+        return includeColumnFiledNames;
+    }
+
+    public void setIncludeColumnFiledNames(Collection<String> includeColumnFiledNames) {
+        this.includeColumnFiledNames = includeColumnFiledNames;
+    }
 }

src/main/java/com/alibaba/excel/write/metadata/WriteWorkbook.java

@@ -43,7 +43,7 @@ public class WriteWorkbook extends WriteBasicParameter {
      */
     private File templateFile;
     /**
-     * Default trueuseDefaultStyle
+     * Default true.
      */
     private Boolean autoCloseStream;
     /**
@@ -57,6 +57,12 @@ public class WriteWorkbook extends WriteBasicParameter {
      *
      */
     private String password;
+    /**
+     * Write excel in memory. Default false,the cache file is created and finally written to excel.
+     * <p>
+     * Comment and RichTextString are only supported in memory mode.
+     */
+    private Boolean inMemory;
     /**
      * The default is all excel objects.Default is true.
      * <p>
@@ -155,4 +161,12 @@ public class WriteWorkbook extends WriteBasicParameter {
     public void setPassword(String password) {
         this.password = password;
     }
+
+    public Boolean getInMemory() {
+        return inMemory;
+    }
+
+    public void setInMemory(Boolean inMemory) {
+        this.inMemory = inMemory;
+    }
 }

src/main/java/com/alibaba/excel/write/metadata/holder/AbstractWriteHolder.java

 package com.alibaba.excel.write.metadata.holder;
 
 import java.util.ArrayList;
+import java.util.Collection;
 import java.util.HashMap;
 import java.util.HashSet;
 import java.util.List;
@@ -65,6 +66,22 @@ public abstract class AbstractWriteHolder extends AbstractHolder implements Writ
      * Use the default style.Default is true.
      */
     private Boolean useDefaultStyle;
+    /**
+     * Ignore the custom columns.
+     */
+    private Collection<Integer> excludeColumnIndexes;
+    /**
+     * Ignore the custom columns.
+     */
+    private Collection<String> excludeColumnFiledNames;
+    /**
+     * Only output the custom columns.
+     */
+    private Collection<Integer> includeColumnIndexes;
+    /**
+     * Only output the custom columns.
+     */
+    private Collection<String> includeColumnFiledNames;
 
     public AbstractWriteHolder(WriteBasicParameter writeBasicParameter, AbstractWriteHolder parentAbstractWriteHolder,
         Boolean convertAllFiled) {
@@ -110,8 +127,29 @@ public abstract class AbstractWriteHolder extends AbstractHolder implements Writ
             this.useDefaultStyle = writeBasicParameter.getUseDefaultStyle();
         }
 
+        if (writeBasicParameter.getExcludeColumnFiledNames() == null && parentAbstractWriteHolder != null) {
+            this.excludeColumnFiledNames = parentAbstractWriteHolder.getExcludeColumnFiledNames();
+        } else {
+            this.excludeColumnFiledNames = writeBasicParameter.getExcludeColumnFiledNames();
+        }
+        if (writeBasicParameter.getExcludeColumnIndexes() == null && parentAbstractWriteHolder != null) {
+            this.excludeColumnIndexes = parentAbstractWriteHolder.getExcludeColumnIndexes();
+        } else {
+            this.excludeColumnIndexes = writeBasicParameter.getExcludeColumnIndexes();
+        }
+        if (writeBasicParameter.getIncludeColumnFiledNames() == null && parentAbstractWriteHolder != null) {
+            this.includeColumnFiledNames = parentAbstractWriteHolder.getIncludeColumnFiledNames();
+        } else {
+            this.includeColumnFiledNames = writeBasicParameter.getIncludeColumnFiledNames();
+        }
+        if (writeBasicParameter.getIncludeColumnIndexes() == null && parentAbstractWriteHolder != null) {
+            this.includeColumnIndexes = parentAbstractWriteHolder.getIncludeColumnIndexes();
+        } else {
+            this.includeColumnIndexes = writeBasicParameter.getIncludeColumnIndexes();
+        }
+
         // Initialization property
-        this.excelWriteHeadProperty = new ExcelWriteHeadProperty(getClazz(), getHead(), convertAllFiled);
+        this.excelWriteHeadProperty = new ExcelWriteHeadProperty(this, getClazz(), getHead(), convertAllFiled);
 
         // Compatible with old code
         compatibleOldCode(writeBasicParameter);
@@ -148,7 +186,6 @@ public abstract class AbstractWriteHolder extends AbstractHolder implements Writ
                 getConverterMap().put(ConverterKeyBuild.buildKey(converter.supportJavaTypeKey()), converter);
             }
         }
-
     }
 
     /**
@@ -343,6 +380,27 @@ public abstract class AbstractWriteHolder extends AbstractHolder implements Writ
         return result;
     }
 
+    @Override
+    public boolean ignore(String fieldName, Integer columnIndex) {
+        if (fieldName != null) {
+            if (includeColumnFiledNames != null && !includeColumnFiledNames.contains(fieldName)) {
+                return true;
+            }
+            if (excludeColumnFiledNames != null && excludeColumnFiledNames.contains(fieldName)) {
+                return true;
+            }
+        }
+        if (columnIndex != null) {
+            if (includeColumnIndexes != null && !includeColumnIndexes.contains(columnIndex)) {
+                return true;
+            }
+            if (excludeColumnIndexes != null && excludeColumnIndexes.contains(columnIndex)) {
+                return true;
+            }
+        }
+        return false;
+    }
+
     public Boolean getNeedHead() {
         return needHead;
     }
@@ -383,6 +441,38 @@ public abstract class AbstractWriteHolder extends AbstractHolder implements Writ
         this.useDefaultStyle = useDefaultStyle;
     }
 
+    public Collection<Integer> getExcludeColumnIndexes() {
+        return excludeColumnIndexes;
+    }
+
+    public void setExcludeColumnIndexes(Collection<Integer> excludeColumnIndexes) {
+        this.excludeColumnIndexes = excludeColumnIndexes;
+    }
+
+    public Collection<String> getExcludeColumnFiledNames() {
+        return excludeColumnFiledNames;
+    }
+
+    public void setExcludeColumnFiledNames(Collection<String> excludeColumnFiledNames) {
+        this.excludeColumnFiledNames = excludeColumnFiledNames;
+    }
+
+    public Collection<Integer> getIncludeColumnIndexes() {
+        return includeColumnIndexes;
+    }
+
+    public void setIncludeColumnIndexes(Collection<Integer> includeColumnIndexes) {
+        this.includeColumnIndexes = includeColumnIndexes;
+    }
+
+    public Collection<String> getIncludeColumnFiledNames() {
+        return includeColumnFiledNames;
+    }
+
+    public void setIncludeColumnFiledNames(Collection<String> includeColumnFiledNames) {
+        this.includeColumnFiledNames = includeColumnFiledNames;
+    }
+
     @Override
     public ExcelWriteHeadProperty excelWriteHeadProperty() {
         return getExcelWriteHeadProperty();

src/main/java/com/alibaba/excel/write/metadata/holder/WriteHolder.java

@@ -28,6 +28,15 @@ public interface WriteHolder extends ConfigurationHolder {
      */
     Map<Class<? extends WriteHandler>, List<WriteHandler>> writeHandlerMap();
 
+    /**
+     * Is to determine if a field needs to be ignored
+     *
+     * @param fieldName
+     * @param columnIndex
+     * @return
+     */
+    boolean ignore(String fieldName, Integer columnIndex);
+
     /**
      * Whether a header is required for the currently operated cell
      *

src/main/java/com/alibaba/excel/write/metadata/holder/WriteWorkbookHolder.java

@@ -97,6 +97,12 @@ public class WriteWorkbookHolder extends AbstractWriteHolder {
      * Whether the encryption
      */
     private String password;
+    /**
+     * Write excel in memory. Default false,the cache file is created and finally written to excel.
+     * <p>
+     * Comment and RichTextString are only supported in memory mode.
+     */
+    private Boolean inMemory;
 
     public WriteWorkbookHolder(WriteWorkbook writeWorkbook) {
         super(writeWorkbook, null, writeWorkbook.getConvertAllFiled());
@@ -137,6 +143,11 @@ public class WriteWorkbookHolder extends AbstractWriteHolder {
         }
         this.hasBeenInitializedSheet = new HashMap<Integer, WriteSheetHolder>();
         this.password = writeWorkbook.getPassword();
+        if (writeWorkbook.getInMemory() == null) {
+            this.inMemory = Boolean.FALSE;
+        } else {
+            this.inMemory = writeWorkbook.getInMemory();
+        }
     }
 
     private void copyTemplate() throws IOException {
@@ -262,6 +273,14 @@ public class WriteWorkbookHolder extends AbstractWriteHolder {
         this.password = password;
     }
 
+    public Boolean getInMemory() {
+        return inMemory;
+    }
+
+    public void setInMemory(Boolean inMemory) {
+        this.inMemory = inMemory;
+    }
+
     @Override
     public HolderEnum holderType() {
         return HolderEnum.WORKBOOK;

src/main/java/com/alibaba/excel/write/property/ExcelWriteHeadProperty.java

@@ -17,6 +17,7 @@ import com.alibaba.excel.enums.CellDataTypeEnum;
 import com.alibaba.excel.enums.HeadKindEnum;
 import com.alibaba.excel.metadata.CellRange;
 import com.alibaba.excel.metadata.Head;
+import com.alibaba.excel.metadata.Holder;
 import com.alibaba.excel.metadata.property.ColumnWidthProperty;
 import com.alibaba.excel.metadata.property.ExcelContentProperty;
 import com.alibaba.excel.metadata.property.ExcelHeadProperty;
@@ -31,8 +32,8 @@ public class ExcelWriteHeadProperty extends ExcelHeadProperty {
     private RowHeightProperty headRowHeightProperty;
     private RowHeightProperty contentRowHeightProperty;
 
-    public ExcelWriteHeadProperty(Class headClazz, List<List<String>> head, Boolean convertAllFiled) {
-        super(headClazz, head, convertAllFiled);
+    public ExcelWriteHeadProperty(Holder holder, Class headClazz, List<List<String>> head, Boolean convertAllFiled) {
+        super(holder, headClazz, head, convertAllFiled);
         if (getHeadKind() != HeadKindEnum.CLASS) {
             return;
         }

src/main/java/com/alibaba/excel/write/style/column/LongestMatchColumnWidthStyleStrategy.java

@@ -21,7 +21,7 @@ import com.alibaba.excel.write.metadata.holder.WriteSheetHolder;
  */
 public class LongestMatchColumnWidthStyleStrategy extends AbstractColumnWidthStyleStrategy {
 
-    private static final int MAX_COLUMN_WIDTH = 256;
+    private static final int MAX_COLUMN_WIDTH = 255;
 
     private static final Map<Integer, Map<Integer, Integer>> CACHE = new HashMap<Integer, Map<Integer, Integer>>(8);
 

src/test/java/com/alibaba/easyexcel/test/core/fill/FillData.java

@@ -15,4 +15,5 @@ public class FillData {
     @NumberFormat("#")
     @ExcelProperty(converter = DoubleStringConverter.class)
     private double number;
+    private String empty;
 }

src/test/java/com/alibaba/easyexcel/test/demo/write/WriteTest.java

@@ -4,7 +4,9 @@ import java.io.File;
 import java.io.InputStream;
 import java.util.ArrayList;
 import java.util.Date;
+import java.util.HashSet;
 import java.util.List;
+import java.util.Set;
 
 import org.apache.poi.ss.usermodel.FillPatternType;
 import org.apache.poi.ss.usermodel.IndexedColors;
@@ -62,6 +64,35 @@ public class WriteTest {
         excelWriter.finish();
     }
 
+    /**
+     * 根据参数只导出指定列
+     * <p>
+     * 1. 创建excel对应的实体对象 参照{@link DemoData}
+     * <p>
+     * 2. 根据自己或者排除自己需要的列
+     * <p>
+     * 3. 直接写即可
+     */
+    @Test
+    public void excludeOrIncludeWrite() {
+        String fileName = TestFileUtil.getPath() + "excludeOrIncludeWrite" + System.currentTimeMillis() + ".xlsx";
+
+        // 根据用户传入字段 假设我们要忽略 date
+        Set<String> excludeColumnFiledNames = new HashSet<String>();
+        excludeColumnFiledNames.add("date");
+        // 这里 需要指定写用哪个class去读，然后写到第一个sheet，名字为模板 然后文件流会自动关闭
+        EasyExcel.write(fileName, DemoData.class).excludeColumnFiledNames(excludeColumnFiledNames).sheet("模板")
+            .doWrite(data());
+
+        fileName = TestFileUtil.getPath() + "excludeOrIncludeWrite" + System.currentTimeMillis() + ".xlsx";
+        // 根据用户传入字段 假设我们只要导出 date
+        Set<String> includeColumnFiledNames = new HashSet<String>();
+        includeColumnFiledNames.add("date");
+        // 这里 需要指定写用哪个class去读，然后写到第一个sheet，名字为模板 然后文件流会自动关闭
+        EasyExcel.write(fileName, DemoData.class).includeColumnFiledNames(includeColumnFiledNames).sheet("模板")
+            .doWrite(data());
+    }
+
     /**
      * 指定写入的列
      * <p>

src/test/java/com/alibaba/easyexcel/test/temp/simple/Wirte.java

@@ -19,6 +19,7 @@ import com.alibaba.easyexcel.test.util.TestFileUtil;
 import com.alibaba.excel.EasyExcel;
 import com.alibaba.excel.ExcelWriter;
 import com.alibaba.excel.write.metadata.WriteSheet;
+import com.alibaba.excel.write.style.row.SimpleRowHeightStyleStrategy;
 import com.alibaba.fastjson.JSON;
 
 import net.sf.cglib.beans.BeanMap;
@@ -49,7 +50,8 @@ public class Wirte {
         String fileName = TestFileUtil.getPath() + "t22" + System.currentTimeMillis() + ".xlsx";
         // 这里 需要指定写用哪个class去读，然后写到第一个sheet，名字为模板 然后文件流会自动关闭
         // 如果这里想使用03 则 传入excelType参数即可
-        EasyExcel.write(fileName, DemoData.class).sheet("模板").doWrite(data());
+        EasyExcel.write(fileName, DemoData.class)
+            .registerWriteHandler(new SimpleRowHeightStyleStrategy((short)150, (short)120)).sheet("模板").doWrite(data());
     }
 
     private List<List<String>> head() {

update.md

+# 2.1.0-beta3
+* 支持强行指定在内存处理，以支持备注、RichTextString等的写入
+* 修复关闭流失败，可能会不删除临时文件的问题
+* 支持根据参数自定义导出列
+* 修改最长匹配策略的最大长度 [Issue #734](https://github.com/alibaba/easyexcel/issues/734)
+* 修复策略头未生效的bug [Issue #735](https://github.com/alibaba/easyexcel/issues/735)
+* 修复填充的时候有数字会异常
+
 # 2.1.0-beta2
 * 修改模板通过流创建报错的bug
 * 修复空数据未替换掉的bug