增加写回调可以自定义样式

src/main/java/com/alibaba/excel/EasyExcelFactory.java

@@ -2,6 +2,7 @@ package com.alibaba.excel;
 
 import com.alibaba.excel.context.AnalysisContext;
 import com.alibaba.excel.event.AnalysisEventListener;
+import com.alibaba.excel.event.WriteHandler;
 import com.alibaba.excel.metadata.Sheet;
 import com.alibaba.excel.support.ExcelTypeEnum;
 
@@ -97,4 +98,23 @@ public class EasyExcelFactory {
         return new ExcelWriter(temp, outputStream, typeEnum, needHead);
     }
 
+    /**
+     * Get ExcelWriter with a template file
+     *
+     * @param temp         Append data after a POI file , Can be null（the template POI filesystem that contains the
+     *                     Workbook stream)
+     * @param outputStream the java OutputStream you wish to write the data to
+     * @param typeEnum     03 or 07
+     * @param needHead
+     * @param handler      User-defined callback
+     * @return new  ExcelWriter
+     */
+    public static ExcelWriter getWriterWithTempAndHandler(InputStream temp,
+                                                          OutputStream outputStream,
+                                                          ExcelTypeEnum typeEnum,
+                                                          boolean needHead,
+                                                          WriteHandler handler) {
+        return new ExcelWriter(temp, outputStream, typeEnum, needHead, handler);
+    }
+
 }

src/main/java/com/alibaba/excel/ExcelWriter.java

@@ -1,5 +1,6 @@
 package com.alibaba.excel;
 
+import com.alibaba.excel.event.WriteHandler;
 import com.alibaba.excel.metadata.BaseRowModel;
 import com.alibaba.excel.metadata.Sheet;
 import com.alibaba.excel.metadata.Table;
@@ -17,7 +18,7 @@ import java.util.List;
  * This object can perform the following two functions.
  * <pre>
  *    1. Create a new empty Excel workbook, write the data to the stream after the data is filled.
- *    2. Edit existing Excel, write the original Excel file, or write it to other places.
+ *    2. Edit existing Excel, write the original Excel file, or write it to other places.{@link ExcelWriter(InputStream , OutputStream , ExcelTypeEnum , boolean )}
  * </pre>
  * @author jipengfei
  */
@@ -39,7 +40,7 @@ public class ExcelWriter {
 
     /**
      * @param generateParam
-     * @since easyexcel 0.0.1
+     * @since easyexcel 0.0.1  Use {@link new ExcelWrite(int, int, int)
      */
     @Deprecated
     public ExcelWriter(GenerateParam generateParam) {
@@ -55,7 +56,7 @@ public class ExcelWriter {
      * @param needHead Do you need to write the header to the file?
      */
     public ExcelWriter(OutputStream outputStream, ExcelTypeEnum typeEnum, boolean needHead) {
-        excelBuilder = new ExcelBuilderImpl(null, outputStream, typeEnum, needHead);
+        excelBuilder = new ExcelBuilderImpl(null, outputStream, typeEnum, needHead, null);
     }
 
     /**
@@ -65,11 +66,24 @@ public class ExcelWriter {
      * @param typeEnum 03 or 07
      */
     public ExcelWriter(InputStream templateInputStream, OutputStream outputStream, ExcelTypeEnum typeEnum,Boolean needHead) {
-        excelBuilder = new ExcelBuilderImpl(templateInputStream,outputStream, typeEnum, needHead);
+        excelBuilder = new ExcelBuilderImpl(templateInputStream,outputStream, typeEnum, needHead, null);
     }
 
+
     /**
-     * Write data to a sheet
+     *  Create new writer
+     * @param templateInputStream Append data after a POI file ,Can be null（the template POI filesystem that contains the Workbook stream)
+     * @param outputStream the java OutputStream you wish to write the data to
+     * @param typeEnum 03 or 07
+     * @param writeHandler User-defined callback
+     */
+    public ExcelWriter(InputStream templateInputStream, OutputStream outputStream, ExcelTypeEnum typeEnum, Boolean needHead,
+                       WriteHandler writeHandler) {
+        excelBuilder = new ExcelBuilderImpl(templateInputStream,outputStream, typeEnum, needHead,writeHandler);
+    }
+
+    /**
+     * Write data(List<? extends BaseRowModel>) to a sheet
      * @param data Data to be written
      * @param sheet Write to this sheet
      * @return this current writer
@@ -97,7 +111,7 @@ public class ExcelWriter {
 
     /**
      *
-     * Write data to a sheet
+     * Write data(List<List<String>>) to a sheet
      * @param data Data to be written
      * @param sheet Write to this sheet
      * @return this
@@ -108,7 +122,7 @@ public class ExcelWriter {
     }
 
     /**
-     * Write data to a sheet
+     * Write data(List<List<String>>) to a sheet
      * @param data  Data to be written
      * @param sheet Write to this sheet
      * @return this
@@ -119,7 +133,7 @@ public class ExcelWriter {
     }
 
     /**
-     * Write data  to a sheet
+     * Write data(List<? extends BaseRowModel>) to a sheet
      * @param data  Data to be written
      * @param sheet Write to this sheet
      * @param table Write to this table
@@ -131,7 +145,7 @@ public class ExcelWriter {
     }
 
     /**
-     * Write data to a sheet
+     * Write data(List<List<String>>) to a sheet
      * @param data  Data to be written
      * @param sheet Write to this sheet
      * @param table Write to this table
@@ -156,7 +170,7 @@ public class ExcelWriter {
     }
 
     /**
-     * Write data to a sheet
+     * Write data(List<List<Object>>) to a sheet
      * @param data  Data to be written
      * @param sheet Write to this sheet
      * @param table Write to this table

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

@@ -1,5 +1,6 @@
 package com.alibaba.excel.context;
 
+import com.alibaba.excel.event.WriteHandler;
 import com.alibaba.excel.metadata.BaseRowModel;
 import com.alibaba.excel.metadata.ExcelHeadProperty;
 import com.alibaba.excel.metadata.Table;
@@ -7,10 +8,7 @@ import com.alibaba.excel.support.ExcelTypeEnum;
 import com.alibaba.excel.util.CollectionUtils;
 import com.alibaba.excel.util.StyleUtil;
 import com.alibaba.excel.util.WorkBookUtil;
-import org.apache.poi.ss.usermodel.CellStyle;
-import org.apache.poi.ss.usermodel.Row;
-import org.apache.poi.ss.usermodel.Sheet;
-import org.apache.poi.ss.usermodel.Workbook;
+import org.apache.poi.ss.usermodel.*;
 import org.apache.poi.ss.util.CellRangeAddress;
 
 import java.io.IOException;
@@ -91,12 +89,20 @@ public class WriteContext {
 
     private boolean needHead = Boolean.TRUE;
 
+    private WriteHandler afterWriteHandler;
+
+    public WriteHandler getAfterWriteHandler() {
+        return afterWriteHandler;
+    }
+
     public WriteContext(InputStream templateInputStream, OutputStream out, ExcelTypeEnum excelType,
-                        boolean needHead) throws IOException {
+                        boolean needHead, WriteHandler afterWriteHandler) throws IOException {
         this.needHead = needHead;
         this.outputStream = out;
+        this.afterWriteHandler = afterWriteHandler;
         this.workbook = WorkBookUtil.createWorkBook(templateInputStream, excelType);
         this.defaultCellStyle = StyleUtil.buildDefaultCellStyle(this.workbook);
+
     }
 
     /**
@@ -110,6 +116,9 @@ public class WriteContext {
                 this.currentSheet = workbook.getSheetAt(sheet.getSheetNo() - 1);
             } catch (Exception e) {
                 this.currentSheet = WorkBookUtil.createSheet(workbook, sheet);
+                if (null != afterWriteHandler) {
+                    this.afterWriteHandler.sheet(sheet.getSheetNo(), currentSheet);
+                }
             }
             buildSheetStyle(currentSheet, sheet.getColumnWidthMap());
             /** **/
@@ -154,13 +163,16 @@ public class WriteContext {
             int startRow = currentSheet.getLastRowNum();
             if (startRow > 0) {
                 startRow += 4;
-            }else {
+            } else {
                 startRow = currentSheetParam.getStartRow();
             }
             addMergedRegionToCurrentSheet(startRow);
             int i = startRow;
             for (; i < this.excelHeadProperty.getRowNum() + startRow; i++) {
                 Row row = WorkBookUtil.createRow(currentSheet, i);
+                if (null != afterWriteHandler) {
+                    this.afterWriteHandler.row(i, row);
+                }
                 addOneRowOfHeadDataToExcel(row, this.excelHeadProperty.getHeadByRowNum(i - startRow));
             }
         }
@@ -177,7 +189,10 @@ public class WriteContext {
     private void addOneRowOfHeadDataToExcel(Row row, List<String> headByRowNum) {
         if (headByRowNum != null && headByRowNum.size() > 0) {
             for (int i = 0; i < headByRowNum.size(); i++) {
-                WorkBookUtil.createCell(row, i, getCurrentHeadCellStyle(), headByRowNum.get(i));
+                Cell cell = WorkBookUtil.createCell(row, i, getCurrentHeadCellStyle(), headByRowNum.get(i));
+                if (null != afterWriteHandler) {
+                    this.afterWriteHandler.cell(i, cell);
+                }
             }
         }
     }

src/main/java/com/alibaba/excel/event/WriteHandler.java

@@ -0,0 +1,35 @@
+package com.alibaba.excel.event;
+
+import org.apache.poi.ss.usermodel.Cell;
+import org.apache.poi.ss.usermodel.Row;
+import org.apache.poi.ss.usermodel.Sheet;
+
+/**
+ *
+ * @author jipengfei
+ */
+public interface WriteHandler {
+
+    /**
+     * Custom operation after creating each sheet
+     *
+     * @param sheetNo
+     * @param sheet
+     */
+    void sheet(int sheetNo, Sheet sheet);
+
+    /**
+     * Custom operation after creating each row
+     *
+     * @param rowNum
+     * @param row
+     */
+    void row(int rowNum, Row row);
+
+    /**
+     * Custom operation after creating each cell
+     * @param cellNum
+     * @param cell
+     */
+    void cell(int cellNum, Cell cell);
+}

src/main/java/com/alibaba/excel/write/ExcelBuilderImpl.java

@@ -1,6 +1,7 @@
 package com.alibaba.excel.write;
 
 import com.alibaba.excel.context.WriteContext;
+import com.alibaba.excel.event.WriteHandler;
 import com.alibaba.excel.exception.ExcelGenerateException;
 import com.alibaba.excel.metadata.BaseRowModel;
 import com.alibaba.excel.metadata.ExcelColumnProperty;
@@ -12,6 +13,7 @@ import com.alibaba.excel.util.POITempFile;
 import com.alibaba.excel.util.TypeUtil;
 import com.alibaba.excel.util.WorkBookUtil;
 import net.sf.cglib.beans.BeanMap;
+import org.apache.poi.ss.usermodel.Cell;
 import org.apache.poi.ss.usermodel.CellStyle;
 import org.apache.poi.ss.usermodel.Row;
 import org.apache.poi.ss.util.CellRangeAddress;
@@ -23,6 +25,7 @@ import java.util.List;
 
 /**
  * @author jipengfei
+ * @date 2017/05/27
  */
 public class ExcelBuilderImpl implements ExcelBuilder {
 
@@ -31,11 +34,11 @@ public class ExcelBuilderImpl implements ExcelBuilder {
     public ExcelBuilderImpl(InputStream templateInputStream,
                             OutputStream out,
                             ExcelTypeEnum excelType,
-                            boolean needHead) {
+                            boolean needHead, WriteHandler writeHandler) {
         try {
             //初始化时候创建临时缓存目录，用于规避POI在并发写bug
             POITempFile.createPOIFilesDirectory();
-            context = new WriteContext(templateInputStream, out, excelType, needHead);
+            context = new WriteContext(templateInputStream, out, excelType, needHead, writeHandler);
         } catch (Exception e) {
             throw new RuntimeException(e);
         }
@@ -99,11 +102,14 @@ public class ExcelBuilderImpl implements ExcelBuilder {
         }
         for (int i = 0; i < oneRowData.size(); i++) {
             Object cellValue = oneRowData.get(i);
-            WorkBookUtil.createCell(row, i, context.getCurrentContentStyle(), cellValue, TypeUtil.isNum(cellValue));
+            Cell cell = WorkBookUtil.createCell(row, i, context.getCurrentContentStyle(), cellValue,
+                TypeUtil.isNum(cellValue));
+            if (null != context.getAfterWriteHandler()) {
+                context.getAfterWriteHandler().cell(i, cell);
+            }
         }
     }
 
-
     private void addJavaObjectToExcel(Object oneRowData, Row row) {
         int i = 0;
         BeanMap beanMap = BeanMap.create(oneRowData);
@@ -113,7 +119,11 @@ public class ExcelBuilderImpl implements ExcelBuilder {
                 excelHeadProperty.getFormat());
             CellStyle cellStyle = baseRowModel.getStyle(i) != null ? baseRowModel.getStyle(i)
                 : context.getCurrentContentStyle();
-            WorkBookUtil.createCell(row, i, cellStyle, cellValue, TypeUtil.isNum(excelHeadProperty.getField()));
+            Cell cell = WorkBookUtil.createCell(row, i, cellStyle, cellValue,
+                TypeUtil.isNum(excelHeadProperty.getField()));
+            if (null != context.getAfterWriteHandler()) {
+                context.getAfterWriteHandler().cell(i, cell);
+            }
             i++;
         }
 
@@ -121,6 +131,9 @@ public class ExcelBuilderImpl implements ExcelBuilder {
 
     private void addOneRowOfDataToExcel(Object oneRowData, int n) {
         Row row = WorkBookUtil.createRow(context.getCurrentSheet(), n);
+        if (null != context.getAfterWriteHandler()) {
+            context.getAfterWriteHandler().row(n, row);
+        }
         if (oneRowData instanceof List) {
             addBasicTypeToExcel((List)oneRowData, row);
         } else {

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

@@ -1,5 +1,6 @@
 package com.alibaba.easyexcel.test;
 
+import com.alibaba.easyexcel.test.listen.AfterWriteHandlerImpl;
 import com.alibaba.easyexcel.test.model.WriteModel;
 import com.alibaba.easyexcel.test.util.FileUtil;
 import com.alibaba.excel.EasyExcelFactory;
@@ -105,6 +106,52 @@ public class WriteTest {
 
     }
 
+    @Test
+    public void writeV2007WithTemplateAndHandler() throws IOException {
+        InputStream inputStream = FileUtil.getResourcesFileInputStream("temp.xlsx");
+        OutputStream out = new FileOutputStream("/Users/jipengfei/2007.xlsx");
+        ExcelWriter writer = EasyExcelFactory.getWriterWithTempAndHandler(inputStream,out,ExcelTypeEnum.XLSX,true,
+            new AfterWriteHandlerImpl());
+        //写第一个sheet, sheet1  数据全是List<String> 无模型映射关系
+        Sheet sheet1 = new Sheet(1, 3);
+        sheet1.setSheetName("第一个sheet");
+        sheet1.setStartRow(20);
+
+        //设置列宽 设置每列的宽度
+        Map columnWidth = new HashMap();
+        columnWidth.put(0,10000);columnWidth.put(1,40000);columnWidth.put(2,10000);columnWidth.put(3,10000);
+        sheet1.setColumnWidthMap(columnWidth);
+        sheet1.setHead(createTestListStringHead());
+        //or 设置自适应宽度
+        //sheet1.setAutoWidth(Boolean.TRUE);
+        writer.write1(createTestListObject(), sheet1);
+
+        //写第二个sheet sheet2  模型上打有表头的注解，合并单元格
+        Sheet sheet2 = new Sheet(2, 3, WriteModel.class, "第二个sheet", null);
+        sheet2.setTableStyle(createTableStyle());
+        sheet2.setStartRow(20);
+        writer.write(createTestListJavaMode(), sheet2);
+
+        //写第三个sheet包含多个table情况
+        Sheet sheet3 = new Sheet(3, 0);
+        sheet3.setSheetName("第三个sheet");
+        sheet3.setStartRow(30);
+        Table table1 = new Table(1);
+        table1.setHead(createTestListStringHead());
+        writer.write1(createTestListObject(), sheet3, table1);
+
+        //写sheet2  模型上打有表头的注解
+        Table table2 = new Table(2);
+        table2.setTableStyle(createTableStyle());
+        table2.setClazz(WriteModel.class);
+        writer.write(createTestListJavaMode(), sheet3, table2);
+
+        writer.finish();
+        out.close();
+
+    }
+
+
 
     @Test
     public void writeV2003() throws IOException {

src/test/java/com/alibaba/easyexcel/test/listen/AfterWriteHandlerImpl.java

@@ -0,0 +1,59 @@
+package com.alibaba.easyexcel.test.listen;
+
+import com.alibaba.excel.event.WriteHandler;
+import org.apache.poi.ss.usermodel.*;
+import org.apache.poi.xssf.usermodel.XSSFClientAnchor;
+import org.apache.poi.xssf.usermodel.XSSFRichTextString;
+
+public class AfterWriteHandlerImpl implements WriteHandler {
+
+    //
+    CellStyle cellStyle;
+
+    @Override
+    public void sheet(int sheetNo, Sheet sheet) {
+        Workbook workbook = sheet.getWorkbook();
+        //要锁定单元格需先为此表单设置保护密码，设置之后此表单默认为所有单元格锁定，可使用setLocked(false)为指定单元格设置不锁定。
+        //设置表单保护密码
+        sheet.protectSheet("your password");
+        //创建样式
+        cellStyle = workbook.createCellStyle();
+        //设置是否锁
+        cellStyle.setLocked(false);
+
+    }
+
+    @Override
+    public void row(int rowNum, Row row) {
+        Workbook workbook = row.getSheet().getWorkbook();
+        //设置行高
+        row.setHeight((short)20);
+    }
+
+    @Override
+    public void cell(int cellNum, Cell cell) {
+        Workbook workbook = cell.getSheet().getWorkbook();
+        Sheet currentSheet = cell.getSheet();
+        if (cellNum == 4 && cell.getRowIndex() == 30) {
+            //设置样式
+            //注意：样式最好采用公用样式，样式在创建sheet后创建，如果有多个样式也需要在创建sheet时候创建后面直接使用，不要每个Cell Create 一个样式，不然会导致报错 The maximum number
+            // of Cell Styles was exceeded.
+            cell.setCellStyle(cellStyle);
+
+
+
+            //设置备注
+            Drawing draw = currentSheet.createDrawingPatriarch();
+            Comment comment = draw.createCellComment(new XSSFClientAnchor(0, 0, 0, 0, 4, 25, 9, 30));
+            XSSFRichTextString rtf = new XSSFRichTextString("添加批注内容收到货死的死哦多胡搜idsad是否会杜甫的范德萨发！1111");
+            Font commentFormatter = workbook.createFont();
+            commentFormatter.setFontName("宋体");
+            //设置字体大小
+            commentFormatter.setFontHeightInPoints((short)9);
+            rtf.applyFont(commentFormatter);
+            comment.setString(rtf);
+            comment.setAuthor("ceshi");
+            cell.setCellComment(comment);
+        }
+    }
+}