Question

我正在使用extender primefaces开发JSF我发生了moficando excel我生成了默认报告，我只需要在生成的单元格中详细应用样式，我只能设置标题样式。

private void columnsCustomers() {
    this.setColumnCustomer(new ArrayList<ValidColumnKey>());        
    this.getColumnCustomer().add(new ValidColumnKey(1, "Codigo", "code"));  
    this.getColumnCustomer().add(new ValidColumnKey(2, "Nombre", "name"));  
    this.getColumnCustomer().add(new ValidColumnKey(3, "Nombre Comercial", "comercialName"));  
    this.getColumnCustomer().add(new ValidColumnKey(4, "Estado", "isActive"));
}

public void postProcessXLS(Object document) {  
    HSSFWorkbook wb = (HSSFWorkbook) document;  
    HSSFSheet sheet = wb.getSheetAt(0);  
    //HSSFSheet sheet = wb.createSheet(getCustomer().getName());
    HSSFRow header = sheet.getRow(0);  

    HSSFRow rowUser0  = sheet.createRow((short) 0);

    HSSFCellStyle styleHeader = (HSSFCellStyle) wb.createCellStyle();
    styleHeader.setAlignment(HSSFCellStyle.ALIGN_CENTER);
    HSSFFont fontHeader = (HSSFFont) wb.createFont();
    fontHeader.setBoldweight(HSSFFont.BOLDWEIGHT_BOLD);
    fontHeader.setColor(HSSFColor.WHITE.index);
    styleHeader.setFillForegroundColor(HSSFColor.DARK_BLUE.index);          
    styleHeader.setFillPattern(HSSFCellStyle.SOLID_FOREGROUND);         
    styleHeader.setFont(fontHeader);
    styleHeader.setBorderBottom((short) 1);
    styleHeader.setBorderLeft((short) 1);           
    styleHeader.setBorderRight((short) 1);
    styleHeader.setBorderTop((short) 1);

    HSSFCell indice = rowUser0.createCell((short) 0);
    indice.setCellValue("N°");
    indice.setCellStyle(styleHeader);

    int nro = 1;
    for(ValidColumnKey column : this.getColumnCustomer()){
        HSSFCell hnro   = rowUser0.createCell((short) nro);
        hnro.setCellValue(column.getDescripcion());
        hnro.setCellStyle(styleHeader);
        nro++;          
    }

    HSSFCellStyle styleCellWhite = (HSSFCellStyle) wb.createCellStyle();
    HSSFFont fontCellWhite = (HSSFFont) wb.createFont();
    fontCellWhite.setBoldweight(HSSFFont.BOLDWEIGHT_NORMAL);
    styleCellWhite.setFillPattern(HSSFCellStyle.SOLID_FOREGROUND);
    styleCellWhite.setBorderBottom((short) 1);
    styleCellWhite.setBorderLeft((short) 1);            
    styleCellWhite.setBorderRight((short) 1);
    styleCellWhite.setBorderTop((short) 1);

    for(int i=0; i < header.getPhysicalNumberOfCells();i++) {  
        HSSFCell cell = header.getCell(i);    
        cell.setCellStyle(styleHeader);
    }  
}

图片：http://s2.subirimagenes.com/otros/previo/thump_8748813excelpoi.jpg

正如你在图片中看到的那样，只是缺少在边缘处详细应用的样式，我应用了样式但显然不起作用，方法将为header.getPhysicalNumberOfCells

有人可以指导我，他们非常感激。

Answer 1

对于工作表问题：PF已在此步骤中创建了工作簿和工作表。您可能希望简单地（重新）命名工作表：

wb.setSheetName(0, getCustomer().getName());

对于您的其他问题（目前尚不清楚），我想您想使用样式 styleCellWhite 格式化数据值。这是一种方法：

//iterates lines, then iterate each column giving style to each cell
for (int r=1; r<sheet.getLastRowNum(); r++) {
    HSSFRow row = sheet.getRow(r);
    for (int i=0; i<row.getPhysicalNumberOfCells(); i++) {
        row.getCell(i).setCellStyle(styleCellWhite);
    }
}

另一个评论

您正处于后处理方法中。这意味着文档，表格和单元格已经创建并填充。你不应该创建行或单元格，而只是在这里修改它们（获取它们并给出样式，修复值或标题。）。

Answer 2

感谢您的帮助，当然不是您评论我在行和列中生成动态表格形式：

<p:dataTable id="listCust" var="cust" value="#{mantClienteMB.customers}" rows="5"
     rowIndexVar="rowIndex" paginatorPosition="top" resizableColumns="true" emptyMessage="">

    <p:column headerText="N°" width="auto">
        <h:outputText value="#{rowIndex+1}" />
    </p:column>
    <c:forEach items="#{mantClienteMB.columnCustomer}" var="colum">
        <p:column headerText="#{colum.descripcion}" width="auto">           
            <h:outputText value="#{cust[colum.entidadBean]}" />                                 
        </p:column>
    </c:forEach>            
</p:dataTable>

这意味着你真的有两个列表，我解决了这个问题：

public void postProcessXLS(Object document) {  
    HSSFWorkbook wb = (HSSFWorkbook) document;  
    wb.setSheetName(0, this.getCustomer().getClass().getSimpleName());
    HSSFSheet sheet = wb.getSheetAt(0);

    sheet.setColumnWidth(0, 1500);
    sheet.setColumnWidth(1, 4500);
    sheet.setColumnWidth(2, 6500);
    sheet.setColumnWidth(3, 6500);
    sheet.setColumnWidth(4, 6500);      

    HSSFRow rowUser0  = sheet.createRow((short) 0);

    HSSFCellStyle styleHeader = (HSSFCellStyle) wb.createCellStyle();
    styleHeader.setAlignment(HSSFCellStyle.ALIGN_CENTER);
    HSSFFont fontHeader = (HSSFFont) wb.createFont();
    fontHeader.setBoldweight(HSSFFont.BOLDWEIGHT_BOLD);
    fontHeader.setColor(HSSFColor.WHITE.index);
    styleHeader.setFillForegroundColor(HSSFColor.DARK_BLUE.index);          
    styleHeader.setFillPattern(HSSFCellStyle.SOLID_FOREGROUND);         
    styleHeader.setFont(fontHeader);
    styleHeader.setBorderBottom((short) 1);
    styleHeader.setBorderLeft((short) 1);           
    styleHeader.setBorderRight((short) 1);
    styleHeader.setBorderTop((short) 1);

    HSSFCell indice = rowUser0.createCell((short) 0);
    indice.setCellValue("N°");
    indice.setCellStyle(styleHeader);

    int nro = 1;
    for(ValidColumnKey column : this.getColumnCustomer()){
        HSSFCell hnro   = rowUser0.createCell((short) nro);
        hnro.setCellValue(column.getDescripcion());
        hnro.setCellStyle(styleHeader);
        nro++;          
    }

    HSSFCellStyle styleCellWhite = (HSSFCellStyle) wb.createCellStyle();
    HSSFFont fontCellWhite = (HSSFFont) wb.createFont();
    fontCellWhite.setBoldweight(HSSFFont.BOLDWEIGHT_NORMAL);
    styleCellWhite.setBorderBottom((short) 1);
    styleCellWhite.setBorderLeft((short) 1);            
    styleCellWhite.setBorderRight((short) 1);
    styleCellWhite.setBorderTop((short) 1);

    for (int r=1; r<=this.getCustomers().size(); r++) {
        HSSFRow row = sheet.getRow(r);
        for (int i=0; i<row.getPhysicalNumberOfCells(); i++) {
            row.getCell(i).setCellStyle(styleCellWhite);
        }
    }

}

使用方法getPhysicalNumberOfCells对使用POI生成的单元格应用css？

2 个答案: