java导出Excel通用方法

               

java导出Excel通用方法，只需要一个list 集合。通用方法改进之处踊跃提出

package oa.common.utils;import java.io.OutputStream;import java.util.List;import javax.servlet.http.HttpServletResponse;import org.apache.struts2.ServletActionContext;import java.lang.reflect.Field;import jxl.Workbook;import jxl.format.Alignment;import jxl.format.Border;import jxl.format.BorderLineStyle;import jxl.format.VerticalAlignment;import jxl.write.Label;import jxl.write.WritableCellFormat;import jxl.write.WritableFont;import jxl.write.WritableSheet;import jxl.write.WritableWorkbook;/*** * @author lsf */public class ExportExcel { /***************************************************************************  * @param fileName EXCEL文件名称  * @param listTitle EXCEL文件第一行列标题集合  * @param listContent EXCEL文件正文数据集合  * @return  */ public  final static String exportExcel(String fileName,String[] Title, List<Object> listContent) {  String result="系统提示：Excel文件导出成功！";    // 以下开始输出到EXCEL  try {       //定义输出流，以便打开保存对话框______________________begin   HttpServletResponse response=ServletActionContext.getResponse();   OutputStream os = response.getOutputStream();// 取得输出流         response.reset();// 清空输出流         response.setHeader("Content-disposition", "attachment; filename="+ new String(fileName.getBytes("GB2312"),"ISO8859-1"));// 设定输出文件头         response.setContentType("application/msexcel");// 定义输出类型       //定义输出流，以便打开保存对话框_______________________end   /** **********创建工作簿************ */   WritableWorkbook workbook = Workbook.createWorkbook(os);   /** **********创建工作表************ */   WritableSheet sheet = workbook.createSheet("Sheet1", 0);   /** **********设置纵横打印（默认为纵打）、打印纸***************** */   jxl.SheetSettings sheetset = sheet.getSettings();   sheetset.setProtected(false);   /** ************设置单元格字体************** */   WritableFont NormalFont = new WritableFont(WritableFont.ARIAL, 10);   WritableFont BoldFont = new WritableFont(WritableFont.ARIAL, 10,WritableFont.BOLD);   /** ************以下设置三种单元格样式，灵活备用************ */   // 用于标题居中   WritableCellFormat wcf_center = new WritableCellFormat(BoldFont);   wcf_center.setBorder(Border.ALL, BorderLineStyle.THIN); // 线条   wcf_center.setVerticalAlignment(VerticalAlignment.CENTRE); // 文字垂直对齐   wcf_center.setAlignment(Alignment.CENTRE); // 文字水平对齐   wcf_center.setWrap(false); // 文字是否换行      // 用于正文居左   WritableCellFormat wcf_left = new WritableCellFormat(NormalFont);   wcf_left.setBorder(Border.NONE, BorderLineStyle.THIN); // 线条   wcf_left.setVerticalAlignment(VerticalAlignment.CENTRE); // 文字垂直对齐   wcf_left.setAlignment(Alignment.LEFT); // 文字水平对齐   wcf_left.setWrap(false); // 文字是否换行       /** ***************以下是EXCEL开头大标题，暂时省略********************* */   //sheet.mergeCells(0, 0, colWidth, 0);   //sheet.addCell(new Label(0, 0, "XX报表", wcf_center));   /** ***************以下是EXCEL第一行列标题********************* */   for (int i = 0; i < Title.length; i++) {    sheet.addCell(new Label(i, 0,Title[i],wcf_center));   }      /** ***************以下是EXCEL正文数据********************* */   Field[] fields=null;   int i=1;   for(Object obj:listContent){    fields=obj.getClass().getDeclaredFields();    int j=0;    for(Field v:fields){     v.setAccessible(true);     Object va=v.get(obj);     if(va==null){      va="";     }     sheet.addCell(new Label(j, i,va.toString(),wcf_left));     j++;    }    i++;   }   /** **********将以上缓存中的内容写到EXCEL文件中******** */   workbook.write();   /** *********关闭文件************* */   workbook.close();     } catch (Exception e) {   result="系统提示：Excel文件导出失败，原因："+ e.toString();   System.out.println(result);    e.printStackTrace();  }  return result; }}

测试：

/** * 导出excel * @return */public String excelPage(){ ExportExcel excel=new ExportExcel(); String str=""; try {  str = new String(getHTTP.getRequest().getParameter("wineOrg.orgName").getBytes("iso8859-1"),"UTF-8"); } catch (UnsupportedEncodingException e) {  // TODO Auto-generated catch block  e.printStackTrace(); } wineOrg.setOrgName(str); List<Object> li=service.exportExcel(wineOrg); String[] Title={"机构ID","会员编号","类别","名称","省ID","省名称","城市ID","城市名称","详细地址","联系人","性别","联系手机","联系电话","传真","邮箱","QQ","生日","积分","客户等级","现金账户余额","结算方式","客户类型","购买次数","购买支数","创建人ID","创建人姓名","create_time","del","STS","备注","负责人ID","负责人姓名","审核标识","审核人ID ","审核人姓名","审核日期","分配人ID","分配人姓名","分配日期","修改人ID","修改人姓名 ","修改时间"}; excel.exportExcel("客户资料信息.xls",Title, li);  return SUCCESS;}

           

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