java 根据指定模板导出excel

根据excel模板动态导出数据库数据 package text; import java.util.ArrayList; import java.util.HashMap; import java.util.List; import java.util.Map; import java.util.UUID; import javax.servlet.ServletContext; import net.sf.jxls.transformer.XLSTransformer; import org.apache.struts2.ServletActionContext; import com.opensymphony.xwork2.ActionSupport; public class TextAction extends ActionSupport { /** */ private static final long serialVersionUID = 1L; private String filename; @SuppressWarnings("rawtypes") public String export() throws Exception { String templateFile = "18.xls"; // String sql = "select * from t_ry order by rybm"; // exportAndDownload(templateFile, DataBase.retrieve(sql)); List datas = new ArrayList(); @SuppressWarnings("unchecked") HashMap map = new HashMap(); map.put("name", "1111"); datas.add(map); exportAndDownload(templateFile, datas); return SUCCESS; } @SuppressWarnings({ "rawtypes", "unchecked" }) public void exportAndDownload(String templateFile, List datas) { try { filename = UUID.randomUUID() + templateFile; // FacesContext context = FacesContext.getCurrentInstance(); // ServletContext servletContext = (ServletContext) // context.getExternalContext().getContext(); ServletContext servletContext = ServletActionContext .getServletContext(); String path = servletContext.getRealPath("\\ExcelFile"); String srcFilePath = path + "\\template\\" + templateFile; String destFilePath = path + "\\download\\" + filename; Map beanParams = new HashMap(); beanParams.put("results", datas); XLSTransformer transfer = new XLSTransformer(); transfer.transformXLS(srcFilePath, beanParams, destFilePath); // Browser.execClientScript("window.location.href='../ExcelFile/downloadfile.jsp?filename=" // + destFile + "';"); } catch (Exception e) { e.printStackTrace(); } } public String getFilename() { return filename; } public void setFilename(String filename) { this.filename = filename; } }
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