在Excel表格中插入dynamic图表

我正在制作一个基本上从数据库中提取数据的分析应用程序，点击button下载包含该数据的Excel工作表。 我用这个太空poi 3.10。 我也有一个要求，在Excel数据表中创build一个图表。 我需要一些指导。

这是我在Excel中插入数据的代码。 我需要在这里添加一些东西来获得与数据相对应的图表：

package com.DAOPackage; import java.math.BigDecimal; import java.util.List; import java.util.Map; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; import org.springframework.stereotype.Component; import org.springframework.web.servlet.view.document.AbstractExcelView; import com.dataType.SubmittedProposal; import com.dataType.SubmittedProposalPerProduct; import com.dataType.SubmittedProposalYearly; import org.apache.poi.hssf.usermodel.HSSFFont; import org.apache.poi.hssf.usermodel.HSSFRow; import org.apache.poi.hssf.usermodel.HSSFSheet; import org.apache.poi.hssf.usermodel.HSSFWorkbook; import org.apache.poi.hssf.util.HSSFColor; import org.apache.poi.ss.usermodel.CellStyle; import org.apache.poi.ss.usermodel.Font; @Component public class ExcelBuilder extends AbstractExcelView { @Override protected void buildExcelDocument(Map<String, Object> model, HSSFWorkbook workbook, HttpServletRequest request, HttpServletResponse response) throws Exception { // get data model which is passed by the Spring container List<SubmittedProposal> submittedProposalMonthly = (List<SubmittedProposal>) model .get("submittedProposalProductMonthly"); List<SubmittedProposalYearly> submittedProposalYearly = (List<SubmittedProposalYearly>) model .get("submittedProposalYearly"); List<SubmittedProposalPerProduct> submittedProposalPerProduct = (List<SubmittedProposalPerProduct>) model .get("submittedProposalPerProduct"); BigDecimal submittedProposal = (BigDecimal) model.get("submittedProposal"); BigDecimal activeUser = (BigDecimal) model.get("activeUser"); // Sheet for Submitted Monthly Proposal // create a new Excel sheet HSSFSheet sheet = workbook.createSheet("Submitted Proposal Monthly"); sheet.setDefaultColumnWidth(30); // create style for header cells CellStyle style = workbook.createCellStyle(); Font font = workbook.createFont(); font.setFontName("Arial"); style.setFillForegroundColor(HSSFColor.BLUE.index); style.setFillPattern(CellStyle.SOLID_FOREGROUND); font.setBoldweight(HSSFFont.BOLDWEIGHT_BOLD); font.setColor(HSSFColor.WHITE.index); style.setFont(font); // create header row HSSFRow header = sheet.createRow(0); header.createCell(0).setCellValue("Month"); header.getCell(0).setCellStyle(style); header.createCell(1).setCellValue("Number"); header.getCell(1).setCellStyle(style); // create data rows int rowCount = 1; for (SubmittedProposal submittedProposalMonth : submittedProposalMonthly) { HSSFRow aRow = sheet.createRow(rowCount++); aRow.createCell(0).setCellValue(submittedProposalMonth.getDate()); aRow.createCell(1).setCellValue(submittedProposalMonth.getTotal()); } // Sheet for Submitted Yearly Proposal // create a new Excel sheet HSSFSheet sheet2 = workbook.createSheet("Submitted Proposal Yearly"); sheet2.setDefaultColumnWidth(30); // create header row HSSFRow header2 = sheet2.createRow(0); header2.createCell(0).setCellValue("Year"); header2.getCell(0).setCellStyle(style); header2.createCell(1).setCellValue("Number"); header2.getCell(1).setCellStyle(style); // create data rows int rowCount2 = 1; for (SubmittedProposalYearly submittedProposalYear : submittedProposalYearly) { HSSFRow aRow = sheet2.createRow(rowCount2++); aRow.createCell(0).setCellValue(submittedProposalYear.getYear()); aRow.createCell(1).setCellValue(submittedProposalYear.getTotal()); } // Sheet for Active User // create a new Excel sheet HSSFSheet sheet3 = workbook.createSheet("Active Users"); sheet3.setDefaultColumnWidth(30); // create header row HSSFRow header3 = sheet3.createRow(0); header3.createCell(0).setCellValue("Total Active User"); header3.getCell(0).setCellStyle(style); // create data rows String users = String.valueOf(activeUser); HSSFRow aRow1 = sheet3.createRow(1); aRow1.createCell(0).setCellValue(users); // Sheet for Submitted Proposal // create a new Excel sheet HSSFSheet sheet4 = workbook.createSheet("Submitted Proposal"); sheet4.setDefaultColumnWidth(30); // create header row HSSFRow header4 = sheet4.createRow(0); header4.createCell(0).setCellValue("Total Submitted Proposal"); header4.getCell(0).setCellStyle(style); // create data rows String submitProposal = String.valueOf(submittedProposal); HSSFRow aRow2 = sheet4.createRow(1); aRow2.createCell(0).setCellValue(submitProposal); // Sheet for Submitted Proposal Per Product // create a new Excel sheet HSSFSheet sheet5 = workbook.createSheet("Submitted Proposal Per Product"); sheet5.setDefaultColumnWidth(30); // create header row HSSFRow header5 = sheet5.createRow(0); header5.createCell(0).setCellValue("Month"); header5.getCell(0).setCellStyle(style); header5.createCell(1).setCellValue("Product"); header5.getCell(0).setCellStyle(style); header5.createCell(2).setCellValue("Number"); header5.getCell(1).setCellStyle(style); // create data rows int rowCount3 = 1; for (SubmittedProposalPerProduct submitProposalPerProduct : submittedProposalPerProduct) { HSSFRow aRow = sheet5.createRow(rowCount3++); aRow.createCell(0).setCellValue(submitProposalPerProduct.getMonth()); aRow.createCell(1).setCellValue(submitProposalPerProduct.getProduct()); aRow.createCell(2).setCellValue(submitProposalPerProduct.getTotal()); } } }