JAVA Excel文件被破坏

Question

我尝试在包含第一个我添加的文件中写入第二个表。没有重叠的行，文件被破坏，但它插入了表格，格式为excel formatAsTable风格。我如何消除这个问题。？即使数据都很好，我也不能有损坏的文件。

public class formatAsTable2 
{ 
    public static void main(String[] args) 
    throws FileNotFoundException, IOException, InvalidFormatException 
    { 
     String[][] multi = new String[][]{ 
    { "Advisor", "notContacted", "appointmentsUTD", "totalWorkLoad", "notResponsiveCalls", "successfulCalls", "totalCalls", "totalIncomingEmails", "totalCommunication", "emailsSent","offerLetters","appFees","deposits" }, 
    { "Sharon Brown", "42", "44", "86", "62", "27", "89", "21", "220", "131" , "0", "6", "2", "0"}, 
    { "Elena Soteriou", "40", "44", "86", "62", "27", "89", "21", "230", "131" , "0", "7", "2", "0"}, 
    { "Helen Christou","45", "44", "86", "62", "27", "89", "21", "210", "131" , "0", "8", "2", "0"}, 
    { "Maria Georgiou", "48", "44", "86", "62", "27", "89", "21", "240", "131" , "0", "45", "2", "0"} 
}; 
     //(indexes start from 0) areaStart should be added to arenaRow 
     int rowStart =55; //From which row the table to start +1 
     int columnStart =15; // From which column the table to start first column value 0 

     int len = multi.length; 
     int wid = multi[0].length; 

     int areaRow =len+rowStart-1; // how many rows the table has 
     int areaColumn=wid+columnStart-1; //how many columns the table has 
    /* Start with Creating a workbook and worksheet object */ 
     InputStream inp = new FileInputStream("Excel_Format_As_Table.xlsx"); 

     XSSFWorkbook wb = (XSSFWorkbook) WorkbookFactory.create(inp); 
     XSSFSheet sheet = (XSSFSheet) wb.getSheetAt(0); 

    /* Create an object of type XSSFTable */ 
    XSSFTable my_table = sheet.createTable(); 


     /* get CTTable object*/ 
    CTTable cttable = my_table.getCTTable(); 



    /* Let us define the required Style for the table */  
    CTTableStyleInfo table_style = cttable.addNewTableStyleInfo(); 
    table_style.setName("TableStyleMedium20"); 

     /* Set Table Style Options */ 
    table_style.setShowColumnStripes(false); //showColumnStripes=0 
    table_style.setShowRowStripes(true); //showRowStripes=1 

    /* Define the data range including headers */ 
    AreaReference my_data_range = new AreaReference(new CellReference(rowStart, columnStart), new CellReference(areaRow, areaColumn)); 

    /* Set Range to the Table */ 
     cttable.setRef(my_data_range.formatAsString()); 
     cttable.setDisplayName("MYTABLE");  /* this is the display name of the table */ 
    cttable.setName("Test1"); /* This maps to "displayName" attribute in <table>, OOXML */    
    cttable.setId(1L); //id attribute against table as long value 
    //cttable.addNewAutoFilter(); 

    CTTableColumns columns =cttable.addNewTableColumns(); 
    columns.setCount(areaColumn); //define number of columns 

     /* Define Header Information for the Table */ 
    for (int i = columnStart; i <= areaColumn; i++) 
    { 
    CTTableColumn column = columns.addNewTableColumn(); 

    column.setName("Column" + i);  
     column.setId(i+1); 
    } 
      int x =-1; 
      int y =-1; 

     /* Add remaining Table Data */ 
     for (int i=rowStart;i<=areaRow;i++) //we have to populate 4 rows 
     { 
      ++x; 
      y=-1; 
     /* Create a Row */ 
      XSSFRow row = sheet.createRow(i); 
      for (int j = columnStart; j <= areaColumn; j++) //Three columns in each row 
      { 
       ++y; 

       XSSFCell localXSSFCell = row.createCell(j); 
       if (i == rowStart) 
       { 
        localXSSFCell.setCellValue("Heading" + j); 
       } 
       else 
        { 
        localXSSFCell.setCellValue(multi[x][y]); 
        } 

      } 

     } 

     System.out.println("X"+x); 
     System.out.println("y"+y); 

     inp.close(); 
    /* Write output as File */ 
    FileOutputStream fileOut = new FileOutputStream("Excel_Format_As_Table.xlsx"); 
    wb.write(fileOut); 
    fileOut.close(); 

    } 
} 

import java.io.FileInputStream; 
import java.io.FileNotFoundException; 
import java.io.FileOutputStream; 
import java.io.IOException; 
import java.io.InputStream; 
import org.apache.poi.openxml4j.exceptions.InvalidFormatException; 
import org.apache.poi.ss.usermodel.WorkbookFactory; 
import org.apache.poi.ss.util.AreaReference; 
import org.apache.poi.ss.util.CellReference; 
import org.apache.poi.xssf.usermodel.XSSFCell; 
import org.apache.poi.xssf.usermodel.XSSFRow; 
import org.apache.poi.xssf.usermodel.XSSFSheet; 
import org.apache.poi.xssf.usermodel.XSSFTable; 
import org.apache.poi.xssf.usermodel.XSSFWorkbook; 
import org.openxmlformats.schemas.spreadsheetml.x2006.main.CTTable; 
import org.openxmlformats.schemas.spreadsheetml.x2006.main.CTTableColumn; 
import org.openxmlformats.schemas.spreadsheetml.x2006.main.CTTableColumns; 
import org.openxmlformats.schemas.spreadsheetml.x2006.main.CTTableStyleInfo; 

Answer 1

的

DisplayName，将Name和的CTTable需求Id为对于每个表是唯一的。因此，如果您将新表格添加到已有表格的工作表中，则必须确保它们是唯一的。

使用示例代码：

... 
    /* Define the data range including headers */ 
    AreaReference my_data_range = new AreaReference(new CellReference(rowStart, columnStart), new CellReference(areaRow, areaColumn)); 

    /* Set Range to the Table */ 
    String wantedDisplayName = "MYTABLE"; 
    String wantedName = "Test1"; 
    long id = 0L; 

    java.util.List<XSSFTable> all_tables = sheet.getTables(); 
    for (XSSFTable a_table : all_tables) { 
    if (wantedDisplayName.equals(a_table.getDisplayName())) wantedDisplayName += "_1"; 
    if (wantedName.equals(a_table.getName())) wantedName += "_1"; 
    if (a_table.getCTTable().getId() > id) id = a_table.getCTTable().getId(); 

    System.out.println(wantedDisplayName); 
    System.out.println(wantedName); 
    System.out.println(id); 
    } 

    id++; 

    cttable.setRef(my_data_range.formatAsString()); 
    cttable.setDisplayName(wantedDisplayName);  /* this is the display name of the table */ 
    cttable.setName(wantedName); /* This maps to "displayName" attribute in <table>, OOXML */    
    cttable.setId(id); //id attribute against table as long value 
...