使用JExcel API（JXL）无法在工作表中添加分栏符

Question

我正在使用JExcel API插件创建一些代码来复制和编辑Excel工作表。

不幸的是，当复制模板页时，原始页中的列分页符丢失。

API对于WritableSheet对象有一个“addRowPageBreak”函数，但没有对应的“addColumnPageBreak”版本。

有人知道黑客能够添加列分页符吗？

在此先感谢您的帮助！

Answer 1

经过研究，似乎在JXL中添加列分页符是不可能的。 POI确实允许这种功能。下面是一些示例代码：

/** 
* Adds page breaks (columns and rows) to a sheet 
* 
* @param pageBreaks 
*   list of page breaks objects that contain the name of the sheet, as well as the column and row page breaks 
*/ 
public static void addPageBreaks(ArrayList<PageBreak> pageBreaks) 
{ 
    try 
    { 
     // Iterate for each page break object 
     for (int i = 0; i < pageBreaks.size(); i++) 
     { 
      // Get sheet from page break object 
      HSSFSheet sheet = workbook.getSheet(pageBreaks.get(i).getSheetName()); 

      // Line needed to set the page breaks in the page 
      sheet.setAutobreaks(false); 

      // Iterate over all the row page breaks 
      if (pageBreaks.get(i).getRowPageBreaks() != null) 
      { 
       for (int j = 0; j < pageBreaks.get(i).getRowPageBreaks().size(); j ++) 
       { 
        sheet.setRowBreak(pageBreaks.get(i).getRowPageBreaks().get(j)); 
       } 
      } 

      // Iterate over all the column page breaks 
      if (pageBreaks.get(i).getColumnPageBreaks() != null) 
      { 
       for (int j = 0; j < pageBreaks.get(i).getColumnPageBreaks().size(); j ++) 
       { 
        sheet.setColumnBreak(pageBreaks.get(i).getColumnPageBreaks().get(j)); 
       } 
      } 
     } 

     fileOut = new FileOutputStream(excelFile); 

     workbook.write(fileOut); 
    } 
    catch (Exception e) 
    { 
     e.printStackTrace(); 
    } 
} 

public class PageBreak 
{ 
private String sheetName; 
private ArrayList<Integer> columnPageBreaks; 
private ArrayList<Integer> rowPageBreaks; 

/** 
    * Constructor. 
    * 
    * @param sheetName 
    *   name of the sheet to add page breaks to 
    * @param rowPageBreaks 
    *   list of rows which to add page breaks to 
    * @param columnPageBreaks 
    *   list of columns which to add page breaks to 
    */ 
public PageBreak(String sheetName, ArrayList<Integer> rowPageBreaks, ArrayList<Integer> columnPageBreaks) 
{ 
    this.sheetName = sheetName; 
    this.rowPageBreaks = rowPageBreaks; 
    this.columnPageBreaks = columnPageBreaks; 
} 

/** 
    * Constructor. 
    * 
    * @param sheetName 
    *   name of the sheet to add page breaks to 
    */ 
public PageBreak(String sheetName) 
{ 
    this.sheetName = sheetName; 
    rowPageBreaks = new ArrayList<Integer>(); 
    columnPageBreaks = new ArrayList<Integer>(); 
} 

/** 
    * Adds a column page break to the list of column page breaks 
    * 
    * @param columnPageBreak 
    *   number of the column which to set as a page break 
    */ 
public void addColumnPageBreak(int columnPageBreak) 
{ 
    columnPageBreaks.add(columnPageBreak); 
} 

/** 
    * Adds a row page break to the list of row page breaks 
    * 
    * @param rownPageBreak 
    *   number of the row which to set as a page break 
    */ 
public void addRowPageBreak(int rowPageBreak) 
{ 
    rowPageBreaks.add(rowPageBreak); 
} 

public ArrayList<Integer> getColumnPageBreaks() 
{ 
    return columnPageBreaks; 
} 

public ArrayList<Integer> getRowPageBreaks() 
{ 
    return rowPageBreaks; 
} 

public String getSheetName() 
{ 
    return sheetName; 
} 

public void setColumnPageBreaks(ArrayList<Integer> columnPageBreaks) 
{ 
    this.columnPageBreaks = columnPageBreaks; 
} 

public void setRowPageBreaks(ArrayList<Integer> rowPageBreaks) 
{ 
    this.rowPageBreaks = rowPageBreaks; 
} 

public void setSheetName(String sheetName) 
{ 
    this.sheetName = sheetName; 
} 

}