java导出Excel通用方法

淡淡的烟草味﹌ 2022-07-26 06:03 181阅读 0赞

这个是转来的，自己没有测试过

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;  
        }

转自：[http://blog.csdn.net/johnstrive/article/details/8109919][http_blog.csdn.net_johnstrive_article_details_8109919]

[http_blog.csdn.net_johnstrive_article_details_8109919]: http://blog.csdn.net/johnstrive/article/details/8109919