(后端)如何将数据库的表导出生成Excel？
1.如何通过元数据拿到数据库的信息？
2.如何用Java生成Excel表？
3.将数据库中的表导出生成Excel案例
如何通过元数据拿到数据库的信息
元数据：描述数据的数据
Java中使用元数据的两个方法
- DatabaseMetaData 通过连接可以拿到的信息：数据库软件，所有数据库名，所有数据库里面的表名，描述数据库的元数据
- ResultSetMetaData 拿到的表结构信息：获得表的列数目 类型和属性 ，描述数据库表的元数据
DatabaseMetaData 的使用学习
@Test// DatabaseMetaData 通过连接可以拿到的信息：数据库软件，所有数据库名，所有数据库里面的表名 public void DatabaseMetaData_Demo() throws Exception{ // 自己写的工具包来获得数据库连接 Connection con = ConnUtils4.getConn(); //DatabaseMetaData 通过连接获得 DatabaseMetaData dbmt = con.getMetaData(); // 数据库软件名 System.out.println(" 数据库软件名:"+dbmt.getDatabaseProductName()); // 拿到所有数据库名字 ResultSet rs =dbmt.getCatalogs(); List<String> tablenames = new ArrayList<String>(); while(rs.next()){ String tabname=rs.getString("TABLE_CAT"); tablenames.add(tabname); System.out.println("数据库名字:"+tabname); } System.out.println("--------------");; //拿到某个数据库李曼所有的表名---可以指定表的类型 rs = dbmt.getTables("ake", "ake", null, new String[]{"TABLE","VIEW"}); while(rs.next()){ System.out.println("数据库ake里的表名:"+rs.getString("TABL````` _NAME")); } }
ResultSetMetaData的使用学习
@Test// ResultSetMetaData 拿到的表结构信息：获得表的列数目 类型和属性 public void ResultSetMetaData_Demo2() throws Exception{ // 自己写的工具包来获得数据库连接 Connection con = ConnUtils4.getConn(); String sql = "select * from ake.book"; Statement st = con.createStatement(); ResultSet rs = st.executeQuery(sql); // ResultSetMetaData 通过 查询的返回集获取 ResultSetMetaData rsmt = rs.getMetaData(); //获得表的列数 int n =rsmt.getColumnCount(); //类型---某一列 // getColumnTypeName:INT //某医疗的名字 // getColumnName:id //某一列的长度 // getColumnDisplaySize:11 for(int i=1;i<n;i++){ System.out.println(rsmt.getTableName(i)+"表的第"+i+"列描述信息"); System.out.println("getColumnDisplaySize:"+rsmt.getColumnDisplaySize(i)); System.out.println("getColumnLabel:"+rsmt.getColumnLabel(i)); System.out.println("getColumnName:"+rsmt.getColumnName(i)); System.out.println("getColumnType:"+rsmt.getColumnType(i)); System.out.println("getColumnTypeName:"+rsmt.getColumnTypeName(i)); System.out.println("getPrecision:"+rsmt.getPrecision(i)); System.out.println("getScale:"+rsmt.getScale(i)); System.out.println("getSchemaName:"+rsmt.getSchemaName(i)); System.out.println("------------"); } con.close(); }
拿出ake表里面所有的内容~~~~
// 拿出ake表里面所有的内容~~~~ public static void main(String[] args) throws Exception{ Connection con = ConnUtils4.getConn(); System.out.println(con); DatabaseMetaData dbmt = con.getMetaData(); //拿到所有的ake所有表名 ResultSet rs =dbmt.getTables("ake", "ake", null, new String[]{"TABLE","VIEW"}); List<String> tablenames = new ArrayList<String>(); while(rs.next()){ String tablename = rs.getString("TABLE_NAME"); tablenames.add(tablename); } for(String tablename:tablenames){ System.out.println(tablename+"表："); if(tablename.equals("img")){ continue; } String sql = "select * from ake."+tablename; Statement st = con.createStatement(); ResultSet RS = st.executeQuery(sql); ResultSetMetaData rsmt = RS.getMetaData(); // 拿到列数 int colnums = rsmt.getColumnCount(); for(int i=1;i<=colnums;i++){ //拿到表头信息 String colName = rsmt.getColumnName(i); System.out.print(colName+"\t"); } System.out.println(); while(RS.next()){ for(int i=1;i<=colnums;i++){ //拿到表信息 System.out.print( RS.getString(i)+"\t"); } System.out.println(); } } con.close(); }
我把那到的表格信息输出 
如何用Java生成Excel表？
需要一个插件工具包
@Test public void Workbook_demo() throws Exception{ // 建立一个工作表--相当于一个数据库 Workbook book = new HSSFWorkbook(); // 数据库中的一个表 Sheet sheet1 =book.createSheet("表1"); // 行 Row row =sheet1.createRow(4); // 单元格 Cell cell = row.createCell(3); // 写入数据 cell.setCellValue("通过java写的Excel"); // 保存到银盘 book.write( new FileOutputStream("d:a/a.xls")); }
将数据库中的表导出生成Excel案例
public static void main(String[] args) throws Exception { //把数据库里所有的信息导入到Excel表中~ Connection con = ConnUtils4.getConn(); DatabaseMetaData dbmt = con.getMetaData(); //要通过 DatabaseMetaData 拿到所有数据库的名字 List<String> Database_Names = new ArrayList<String>(); ResultSet rs =dbmt.getCatalogs(); while(rs.next()){ Database_Names.add( rs.getString("TABLE_CAT")); } //DatabaseMetaData 拿到所有数据表名 int m = 0; for(String Database_Name:Database_Names){ if(!Database_Name.equals("ake")){ continue; } // if(m++>=3){ // break; // } // 一个数据库对于一个 Excel文档~ Workbook book = new HSSFWorkbook(); rs = dbmt.getTables(Database_Name, Database_Name, null, new String[]{"TABLE","VIEW"}); //封装所有表名 List<String> Table_Names = new ArrayList<String>(); while(rs.next()){ Table_Names.add( rs.getString("TABLE_NAME")); } for(String Table_Name:Table_Names){ if("img".equals(Table_Name) ||"note".equals(Table_Name) ){ // img为二进制文件导入会出错 continue; } //创建一个表 Sheet sheet = book.createSheet(Table_Name); Statement st = con.createStatement(); String sql = "select * from "+Database_Name+"."+Table_Name; // System.out.println("sql:"+sql); rs = st.executeQuery(sql); //设置表头信息 Row row1 = sheet.createRow(0); ResultSetMetaData rsmd = rs.getMetaData(); int colnum = rsmd.getColumnCount(); for(int i=1;i<=colnum;i++){ String name = rsmd.getColumnName(i); Cell cell = row1.createCell(i-1); cell.setCellValue(name); // System.out.print(name+"\t"); } // System.out.println(); //设置表格信息 int idx = 1; while(rs.next()){ Row row = sheet.createRow(idx++); for(int i=1;i<=colnum;i++){ String str = rs.getString(i); // System.out.print(str+"\t"); Cell cell = row.createCell(i-1); cell.setCellValue(str); } // System.out.println(); } } book.write( new FileOutputStream( "d:a/"+Database_Name+".xls")); } }
执行结果就成功啦！ 
/**
* excel
* @param request
* @param resp
* @throws UnsupportedEncodingException
*/
@RequestMapping(value = "/exportReceiptReport", method = RequestMethod.GET)
@ResponseBody
public void exportReceiptReport(HttpServletRequest request, HttpServletResponse response,JyHTMLpurchaseinfoApiForm form) throws IOException {
HSSFWorkbook wb = new HSSFWorkbook();
request.setCharacterEncoding("UTF-8");
response.setCharacterEncoding("UTF-8");
response.setContentType("application/x-download");
Date d = new Date();
SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd");
String now = sdf.format(d);
String fileName = "采购"+now+".xls";
fileName = URLEncoder.encode(fileName, "UTF-8");
response.addHeader("Content-Disposition", "attachment;filename=" + fileName);
HSSFSheet sheet = wb.createSheet("sheet1");
sheet.setDefaultRowHeight((short) ( * ));
HSSFFont font = wb.createFont();
font.setFontName("宋体");
font.setFontHeightInPoints((short) );
HSSFRow row = sheet.createRow((int) );
sheet.createRow((int) );
sheet.createRow((int) );
sheet.createRow((int) );
sheet.createRow((int) );
sheet.createRow((int) );
sheet.createRow((int) );
sheet.createRow((int) );
HSSFCellStyle style = wb.createCellStyle();
style.setAlignment(HSSFCellStyle.ALIGN_CENTER); HSSFCell cell = row.createCell();
cell.setCellValue("收货");
cell.setCellStyle(style);
cell = row.createCell();
cell.setCellValue("来源");
cell.setCellStyle(style);
cell = row.createCell();
cell.setCellValue("入库");
cell.setCellStyle(style);
cell = row.createCell();
cell.setCellValue("名称");
cell.setCellStyle(style);
cell = row.createCell();
cell.setCellValue("商品名称");
cell.setCellStyle(style);
cell = row.createCell();
cell.setCellValue("单位");
cell.setCellStyle(style);
cell = row.createCell();
cell.setCellValue("规格");
cell.setCellStyle(style);
cell = row.createCell();
cell.setCellValue("数量");
cell.setCellStyle(style);
cell = row.createCell();
cell.setCellValue("单价");
cell.setCellStyle(style);
cell = row.createCell();
cell.setCellValue("金额");
cell.setCellStyle(style);
cell = row.createCell();
cell.setCellValue("用户名称");
cell.setCellStyle(style); List list = SF.JYPURCHASEINFO_SERVICE.exportReceiptReport(form);
for (int i = ; i < list.size(); i++) {
HSSFRow row1 = sheet.createRow(i+);
Map<String, Object> map = (Map<String,Object>)list.get(i);
row1.createCell().setCellValue((map.get("receipt_no") != null ? map.get("receipt_no") : "").toString());
row1.createCell().setCellValue((map.get("purchase_no") != null ? map.get("purchase_no") : "").toString());
row1.createCell().setCellValue((map.get("value") != null ? map.get("value") : "").toString());
row1.createCell().setCellValue((map.get("supplier_name") != null ? map.get("supplier_name") : "").toString());
row1.createCell().setCellValue((map.get("packing_name") != null ? map.get("packing_name") : "").toString());
row1.createCell().setCellValue((map.get("purchase_unit") != null ? map.get("purchase_unit") : "").toString());
row1.createCell().setCellValue((map.get("packing_spec") != null ? map.get("packing_spec") : "").toString());
row1.createCell().setCellValue((map.get("boxcount") != null ? map.get("boxcount") : "").toString()+
(map.get("packing_unit") != null ? map.get("packing_unit") : "").toString()+
(map.get("pingCount") != null ? map.get("pingCount") : "").toString()+
(map.get("item_unit") != null ? map.get("item_unit") : "").toString());
row1.createCell().setCellValue((map.get("purchase_price") != null ? map.get("purchase_price") : "").toString());
row1.createCell().setCellValue((map.get("name") != null ? map.get("name") : "").toString());
}
//sheet.autoSizeColumn((short)0); //调整第一列宽度.
try {
OutputStream out = response.getOutputStream();
wb.write(out);
out.flush();
out.close();
} catch (ServiceException e) {
logger.info ("ServiceException=====导出excel异常====" + e);
e.printStackTrace();
} catch (Exception e1) {
logger.info ("Exception=====导出excel异常====" + e1);
e1.printStackTrace();
}
}
多个excel:
/**
* 费用结算清单导出:
*/
@RequestMapping(value = "/exportDealerCosts", method = RequestMethod.GET)
@ResponseBody
public void exportDealerCosts(HttpServletRequest request, HttpServletResponse response,JyDealerHomeform form) throws IOException {
HSSFWorkbook wb = new HSSFWorkbook();
request.setCharacterEncoding("UTF-8");
response.setCharacterEncoding("UTF-8");
response.setContentType("application/x-download");
Date d = new Date();
SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd");
String now = sdf.format(d);
String fileName = "费用结算清单"+now+".xls";
fileName = URLEncoder.encode(fileName, "UTF-8");
response.addHeader("Content-Disposition", "attachment;filename=" + fileName);
//合计
HSSFSheet sheet = wb.createSheet("费用结算清单");
sheet.setDefaultRowHeight((short) ( * ));
HSSFFont font = wb.createFont();
font.setFontName("宋体");
font.setFontHeightInPoints((short) );
HSSFRow row = sheet.createRow((int) );
sheet.createRow((int) );
sheet.createRow((int) );
sheet.createRow((int) );
sheet.createRow((int) );
sheet.createRow((int) );
sheet.createRow((int) );
sheet.createRow((int) );
HSSFCellStyle style = wb.createCellStyle();
style.setAlignment(HSSFCellStyle.ALIGN_CENTER);
HSSFCell cell = row.createCell();
cell.setCellValue("公司名称");
cell.setCellStyle(style);
cell = row.createCell();
cell.setCellValue("仓储费");
cell.setCellStyle(style);
cell = row.createCell();
cell.setCellValue("配送费");
cell.setCellStyle(style);
cell = row.createCell();
cell.setCellValue("回空配送费");
cell.setCellStyle(style);
cell = row.createCell();
cell.setCellValue("退货配偶费");
cell.setCellStyle(style);
cell = row.createCell();
cell.setCellValue("入出库费");
cell.setCellStyle(style);
List dealerCosts = SF.JYDEALER_SERVICE.dealerCosts(form);
for (int i = ; i < dealerCosts.size(); i++) {
HSSFRow row1 = sheet.createRow(i+);
Map<String, Object> map = (Map<String,Object>)dealerCosts.get(i);
row1.createCell().setCellValue((map.get("name") != null ? map.get("name") : "").toString());
row1.createCell().setCellValue((map.get("cc_fee") != null ? map.get("cc_fee") : "").toString());
row1.createCell().setCellValue((map.get("ps_fee") != null ? map.get("ps_fee") : "").toString());
row1.createCell().setCellValue((map.get("hkps_fee") != null ? map.get("hkps_fee") : "").toString());
row1.createCell().setCellValue((map.get("thps_fee") != null ? map.get("thps_fee") : "").toString());
row1.createCell().setCellValue((map.get("rc_fee") != null ? map.get("rc_fee") : "").toString());
} //仓储费
HSSFSheet sheet2 = wb.createSheet("仓储费明细");
sheet2.setDefaultRowHeight((short) ( * ));
HSSFRow row2 = sheet2.createRow((int) );
sheet2.createRow((int) );
sheet2.createRow((int) );
sheet2.createRow((int) );
sheet2.createRow((int) );
sheet2.createRow((int) );
sheet2.createRow((int) );
sheet2.createRow((int) );
HSSFCell cell2 = row2.createCell();
cell2.setCellValue("日期");
cell2.setCellStyle(style);
cell2 = row2.createCell();
cell2.setCellValue("公司名称");
cell2.setCellStyle(style);
cell2 = row2.createCell();
cell2.setCellValue("商品类型");
cell2.setCellStyle(style);
cell2 = row2.createCell();
cell2.setCellValue("商品名称");
cell2.setCellStyle(style);
cell2 = row2.createCell();
cell2.setCellValue("库存件数");
cell2.setCellStyle(style);
cell2 = row2.createCell();
cell2.setCellValue("总重量");
cell2.setCellStyle(style);
cell2 = row2.createCell();
cell2.setCellValue("仓储费");
cell2.setCellStyle(style);
List dealerStorageFee = SF.JYDEALER_SERVICE.dealerStorageFee(form);
for (int i = ; i < dealerStorageFee.size(); i++) {
HSSFRow row1 = sheet2.createRow(i+);
Map<String, Object> map = (Map<String,Object>)dealerStorageFee.get(i);
row1.createCell().setCellValue((map.get("calendarDate") != null ? map.get("calendarDate") : "").toString());
row1.createCell().setCellValue((map.get("dealerName") != null ? map.get("dealerName") : "").toString());
row1.createCell().setCellValue((map.get("itemType") != null ? map.get("itemType") : "").toString());
row1.createCell().setCellValue((map.get("packingName") != null ? map.get("packingName") : "").toString());
row1.createCell().setCellValue((map.get("packingQty") != null ? map.get("packingQty") : "").toString());
row1.createCell().setCellValue((map.get("totalWeight") != null ? map.get("totalWeight") : "").toString());
row1.createCell().setCellValue((map.get("totalAmount") != null ? map.get("totalAmount") : "").toString());
} //配送费
HSSFSheet sheet3 = wb.createSheet("配送费明细");
sheet3.setDefaultRowHeight((short) ( * ));
HSSFRow row3 = sheet3.createRow((int) );
sheet3.createRow((int) );
sheet3.createRow((int) );
sheet3.createRow((int) );
sheet3.createRow((int) );
sheet3.createRow((int) );
sheet3.createRow((int) );
sheet3.createRow((int) );
HSSFCell cell3 = row3.createCell();
cell3.setCellValue("日期");
cell3.setCellStyle(style);
cell3 = row3.createCell();
cell3.setCellValue("公司名称");
cell3.setCellStyle(style);
cell3 = row3.createCell();
cell3.setCellValue("费用区分");
cell3.setCellStyle(style);
cell3 = row3.createCell();
cell3.setCellValue("费项");
cell3.setCellStyle(style);
cell3 = row3.createCell();
cell3.setCellValue("金额");
cell3.setCellStyle(style);
cell3 = row3.createCell();
cell3.setCellValue("客户");
cell3.setCellStyle(style);
cell3 = row3.createCell();
cell3.setCellValue("结算对象");
cell3.setCellStyle(style);
cell3 = row3.createCell();
cell3.setCellValue("订单编号");
cell3.setCellStyle(style);
cell3 = row3.createCell();
cell3.setCellValue("送货件数");
cell3.setCellStyle(style);
cell3 = row3.createCell();
cell3.setCellValue("总重量");
cell3.setCellStyle(style);
cell3 = row3.createCell();
cell3.setCellValue("送货单号");
cell3.setCellStyle(style);
cell3 = row3.createCell();
cell3.setCellValue("配送方式");
cell3.setCellStyle(style);
List dealerDeliverFee = SF.JYDEALER_SERVICE.dealerDeliverFee(form);
for (int i = ; i < dealerDeliverFee.size(); i++) {
HSSFRow row1 = sheet3.createRow(i+);
Map<String, Object> map = (Map<String,Object>)dealerDeliverFee.get(i);
row1.createCell().setCellValue((map.get("confirm_date") != null ? map.get("confirm_date") : "").toString());
row1.createCell().setCellValue((map.get("name") != null ? map.get("name") : "").toString());
row1.createCell().setCellValue((map.get("fee_type_name") != null ? map.get("fee_type_name") : "").toString());
row1.createCell().setCellValue((map.get("calculate_subject") != null ? map.get("calculate_subject") : "").toString());
row1.createCell().setCellValue((map.get("out_amount") != null ? map.get("out_amount") : "").toString());
row1.createCell().setCellValue((map.get("customer_name") != null ? map.get("customer_name") : "").toString());
row1.createCell().setCellValue((map.get("source_type_name") != null ? map.get("source_type_name") : "").toString());
row1.createCell().setCellValue((map.get("source_order_no") != null ? map.get("source_order_no") : "").toString());
row1.createCell().setCellValue((map.get("box_count") != null ? map.get("box_count") : "").toString());
row1.createCell().setCellValue((map.get("weight") != null ? map.get("weight") : "").toString());
row1.createCell().setCellValue((map.get("deliver_no") != null ? map.get("deliver_no") : "").toString());
row1.createCell().setCellValue((map.get("value") != null ? map.get("value") : "").toString());
} //回空配送费
HSSFSheet sheet4 = wb.createSheet("回空配送费明细");
sheet4.setDefaultRowHeight((short) ( * ));
HSSFRow row4 = sheet4.createRow((int) );
sheet4.createRow((int) );
sheet4.createRow((int) );
sheet4.createRow((int) );
sheet4.createRow((int) );
sheet4.createRow((int) );
sheet4.createRow((int) );
sheet4.createRow((int) );
HSSFCell cell4 = row4.createCell();
cell4.setCellValue("日期");
cell4.setCellStyle(style);
cell4 = row4.createCell();
cell4.setCellValue("公司名称");
cell4.setCellStyle(style);
cell4 = row4.createCell();
cell4.setCellValue("回空品名称");
cell4.setCellStyle(style);
cell4 = row4.createCell();
cell4.setCellValue("费用区分");
cell4.setCellStyle(style);
cell4 = row4.createCell();
cell4.setCellValue("费项");
cell4.setCellStyle(style);
cell4 = row4.createCell();
cell4.setCellValue("金额");
cell4.setCellStyle(style);
cell4 = row4.createCell();
cell4.setCellValue("收货单号");
cell4.setCellStyle(style);
cell4 = row4.createCell();
cell4.setCellValue("客户");
cell4.setCellStyle(style);
cell4 = row4.createCell();
cell4.setCellValue("结算对象");
cell4.setCellStyle(style);
cell4 = row4.createCell();
cell4.setCellValue("销售单号");
cell4.setCellStyle(style);
cell4 = row4.createCell();
cell4.setCellValue("回空件数");
cell4.setCellStyle(style);
cell4 = row4.createCell();
cell4.setCellValue("送货单号");
cell4.setCellStyle(style); List dealerBackDeliverFee = SF.JYDEALER_SERVICE.dealerBackDeliverFee(form);
for (int i = ; i < dealerBackDeliverFee.size(); i++) {
HSSFRow row1 = sheet4.createRow(i+);
Map<String, Object> map = (Map<String,Object>)dealerBackDeliverFee.get(i);
row1.createCell().setCellValue((map.get("confirm_date") != null ? map.get("confirm_date") : "").toString());
row1.createCell().setCellValue((map.get("name") != null ? map.get("name") : "").toString());
row1.createCell().setCellValue((map.get("item_name") != null ? map.get("item_name") : "").toString());
row1.createCell().setCellValue((map.get("fee_type_name") != null ? map.get("fee_type_name") : "").toString());
row1.createCell().setCellValue((map.get("calculate_subject") != null ? map.get("calculate_subject") : "").toString());
row1.createCell().setCellValue((map.get("detail_amount") != null ? map.get("detail_amount") : "").toString());
row1.createCell().setCellValue((map.get("source_order_no") != null ? map.get("source_order_no") : "").toString());
row1.createCell().setCellValue((map.get("customer_name") != null ? map.get("customer_name") : "").toString());
row1.createCell().setCellValue((map.get("source_type_name") != null ? map.get("source_type_name") : "").toString());
row1.createCell().setCellValue((map.get("sales_no") != null ? map.get("sales_no") : "").toString());
row1.createCell().setCellValue((map.get("receipt_box") != null ? map.get("receipt_box") : "").toString());
row1.createCell().setCellValue((map.get("deliver_no") != null ? map.get("deliver_no") : "").toString());
} //退货配送费
HSSFSheet sheet5 = wb.createSheet("退货配送费明细");
sheet5.setDefaultRowHeight((short) ( * ));
HSSFRow row5 = sheet5.createRow((int) );
sheet5.createRow((int) );
sheet5.createRow((int) );
HSSFCell cell5 = row5.createCell();
cell5.setCellValue("日期");
cell5.setCellStyle(style);
cell5 = row5.createCell();
cell5.setCellValue("公司名称");
cell5.setCellStyle(style);
cell5 = row5.createCell();
cell5.setCellValue("商品名称");
cell5.setCellStyle(style);
cell5 = row5.createCell();
cell5.setCellValue("费用区分");
cell5.setCellStyle(style);
cell5 = row5.createCell();
cell5.setCellValue("费项");
cell5.setCellStyle(style);
cell5 = row5.createCell();
cell5.setCellValue("金额");
cell5.setCellStyle(style);
cell5 = row5.createCell();
cell5.setCellValue("收货单号");
cell5.setCellStyle(style);
cell5 = row5.createCell();
cell5.setCellValue("客户");
cell5.setCellStyle(style);
cell5 = row5.createCell();
cell5.setCellValue("结算对象");
cell5.setCellStyle(style);
cell5 = row5.createCell();
cell5.setCellValue("销售单号");
cell5.setCellStyle(style);
cell5 = row5.createCell();
cell5.setCellValue("退货件数");
cell5.setCellStyle(style);
cell5 = row5.createCell();
cell5.setCellValue("总重量");
cell5.setCellStyle(style);
cell5 = row5.createCell();
cell5.setCellValue("送货单号");
cell5.setCellStyle(style); List dealerReturnDeliverFee = SF.JYDEALER_SERVICE.dealerReturnDeliverFee(form);
for (int i = ; i < dealerReturnDeliverFee.size(); i++) {
HSSFRow row1 = sheet5.createRow(i+);
Map<String, Object> map = (Map<String,Object>)dealerReturnDeliverFee.get(i);
row1.createCell().setCellValue((map.get("confirm_date") != null ? map.get("confirm_date") : "").toString());
row1.createCell().setCellValue((map.get("name") != null ? map.get("name") : "").toString());
row1.createCell().setCellValue((map.get("packing_name") != null ? map.get("packing_name") : "").toString());
row1.createCell().setCellValue((map.get("fee_type_name") != null ? map.get("fee_type_name") : "").toString());
row1.createCell().setCellValue((map.get("calculate_subject") != null ? map.get("calculate_subject") : "").toString());
row1.createCell().setCellValue((map.get("detail_amount") != null ? map.get("detail_amount") : "").toString());
row1.createCell().setCellValue((map.get("source_order_no") != null ? map.get("source_order_no") : "").toString());
row1.createCell().setCellValue((map.get("customer_name") != null ? map.get("customer_name") : "").toString());
row1.createCell().setCellValue((map.get("source_type_name") != null ? map.get("source_type_name") : "").toString());
row1.createCell().setCellValue((map.get("sales_no") != null ? map.get("sales_no") : "").toString());
row1.createCell().setCellValue((map.get("receipt_box") != null ? map.get("receipt_box") : "").toString());
row1.createCell().setCellValue((map.get("detail_weight") != null ? map.get("detail_weight") : "").toString());
row1.createCell().setCellValue((map.get("deliver_no") != null ? map.get("deliver_no") : "").toString());
} //入出库费
HSSFSheet sheet6 = wb.createSheet("入出库费明细");
sheet6.setDefaultRowHeight((short) ( * ));
HSSFRow row6 = sheet6.createRow((int) );
sheet6.createRow((int) );
sheet6.createRow((int) );
HSSFCell cell6 = row6.createCell();
cell6.setCellValue("日期");
cell6.setCellStyle(style);
cell6 = row6.createCell();
cell6.setCellValue("公司名称");
cell6.setCellStyle(style);
cell6 = row6.createCell();
cell6.setCellValue("费用区分");
cell6.setCellStyle(style);
cell6 = row6.createCell();
cell6.setCellValue("费项");
cell6.setCellStyle(style);
cell6 = row6.createCell();
cell6.setCellValue("结算对象");
cell6.setCellStyle(style);
cell6 = row6.createCell();
cell6.setCellValue("收货单号");
cell6.setCellStyle(style);
cell6 = row6.createCell();
cell6.setCellValue("对应商品");
cell6.setCellStyle(style);
cell6 = row6.createCell();
cell6.setCellValue("件数");
cell6.setCellStyle(style);
cell6 = row6.createCell();
cell6.setCellValue("计算重量");
cell6.setCellStyle(style);
cell6 = row6.createCell();
cell6.setCellValue("费用");
cell6.setCellStyle(style);
cell6 = row6.createCell();
cell6.setCellValue("入库类型");
cell6.setCellStyle(style); List dealerInoutFee = SF.JYDEALER_SERVICE.dealerInoutFee(form);
for (int i = ; i < dealerInoutFee.size(); i++) {
HSSFRow row1 = sheet6.createRow(i+);
Map<String, Object> map = (Map<String,Object>)dealerInoutFee.get(i);
row1.createCell().setCellValue((map.get("confirm_date") != null ? map.get("confirm_date") : "").toString());
row1.createCell().setCellValue((map.get("name") != null ? map.get("name") : "").toString());
row1.createCell().setCellValue((map.get("fee_type_name") != null ? map.get("fee_type_name") : "").toString());
row1.createCell().setCellValue((map.get("calculate_subject") != null ? map.get("calculate_subject") : "").toString());
row1.createCell().setCellValue((map.get("source_type_name") != null ? map.get("source_type_name") : "").toString());
row1.createCell().setCellValue((map.get("source_order_no") != null ? map.get("source_order_no") : "").toString());
row1.createCell().setCellValue((map.get("packing_name") != null ? map.get("packing_name") : "").toString());
row1.createCell().setCellValue((map.get("receipt_box") != null ? map.get("receipt_box") : "").toString());
row1.createCell().setCellValue((map.get("detail_weight") != null ? map.get("detail_weight") : "").toString());
row1.createCell().setCellValue((map.get("detail_amount") != null ? map.get("detail_amount") : "").toString());
row1.createCell().setCellValue((map.get("receipt_type") != null ? map.get("receipt_type") : "").toString());
}
try {
OutputStream out = response.getOutputStream();
wb.write(out);
out.flush();
out.close();
} catch (ServiceException e) {
logger.info("ServiceException=====导出excel异常====" + e);
} catch (Exception e1) {
logger.info("Exception=====导出excel异常====" + e1);
}
}
就是excel出来一行合并行 xxx年xx月xx日下面是内容
HSSFRow rowA = sheet.createRow((int) );
sheet.createRow((int) );
sheet.createRow((int) );
sheet.createRow((int) );
sheet.createRow((int) );
sheet.createRow((int) );
sheet.createRow((int) );
sheet.createRow((int) );
HSSFCellStyle style = wb.createCellStyle();
style.setAlignment(HSSFCellStyle.ALIGN_CENTER); HSSFCell cell = rowA.createCell();
cell.setCellValue("库存:"+form.getBeginDate()+"起至"+form.getEndDate()+"");
cell.setCellStyle(style);
cell = rowA.createCell();
cell.setCellValue("");
cell.setCellStyle(style);
cell = rowA.createCell();
cell.setCellValue("");
cell.setCellStyle(style);
cell = rowA.createCell();
cell.setCellValue("");
cell.setCellStyle(style);
cell = rowA.createCell();
cell.setCellValue("");
cell.setCellStyle(style);
cell = rowA.createCell();
cell.setCellValue("");
cell.setCellStyle(style);
cell = rowA.createCell();
cell.setCellValue("");
cell.setCellStyle(style);
cell = rowA.createCell();
cell.setCellValue("");
cell.setCellStyle(style); // 合并单元格
CellRangeAddress cra =new CellRangeAddress(, , , ); // 起始行, 终止行, 起始列, 终止列
sheet.addMergedRegion(cra);
合并单元格后居中
style = wb.createCellStyle();
style.setAlignment(XSSFCellStyle.ALIGN_CENTER);
(后端)如何将数据库的表导出生成Excel？的更多相关文章
- 从数据库的表导出到Excel表格中【让客户端下载的Excel】
原文发布时间为:2008-10-11 -- 来源于本人的百度文章 [由搬家工具导入] 这个例子是从gridview中导出到Excel，可以举一反三，可以直接从数据库中取值放在DataSet中，然后再从 ...
- 数据库多张表导出到excel
数据库多张表导出到excel public static void export() throws Exception{ //声明需要导出的数据库 String dbName = "hdcl ...
- 将Mysql的一张表导出至Excel格式文件
将Mysql的一张表导出至Excel格式文件 导出语句 进入mysql数据库,输入如下sql语句: select id, name, age from tablename into outfile ' ...
- Json数据导出生成Excel
最近在做一个导入导出Excel的功能,导出其他类型的文件都比较熟悉,但是导入跟导出一个Excel还是稍微特殊点.根据这次的经验,写了个导出的小样例. 总体思路就是json数据的key,value跟Ex ...
- Asp.Net Core 导入Excel数据到Sqlite数据库并重新导出到Excel
Asp.Net Core 导入Excel数据到Sqlite数据库并重新导出到Excel 在博文"在Asp.Net Core 使用 Sqlite 数据库"中创建了ASP.NET Co ...
- Python实战 :2017国考职业表excel转数据库，再查询生成excel
最近看2017年国考的职业表,多而杂,不好过滤我想要的信息,特此把它转成Sqlite3数据库,再从数据库里把查询结果导出成excel,方便找职业. (后附上整套代码) 环境:python2.7 x ...
- WPF根据Oracle数据库的表，生成CS文件小工具
开发小工具的原因: 1.我们公司的开发是客户端用C#,服务端用Java,前后台在通讯交互的时候,会用到Oracle数据库的字段,因为服务器端有公司总经理开发的一个根据Oracle数据库的表生成的cla ...
- JAVA利用JXL导出/生成 EXCEL
/** * 导出导出采暖市场部收入.成本.利润明细表 * @author JIA-G-Y */ public String exporExcel(String str) { String str=Se ...
- JAVA实现数据库数据导入/导出到Excel（POI）
准备工作: 1.导入POI包:POI下载地址http://mirrors.tuna.tsinghua.edu.cn/apache/poi/release/src/(重要) 如下 2.导入Java界面美 ...
随机推荐
- Hexo的next主题安装
通过Git+Hexo搭建的个人博客地址:https://liangh.top/ 1.使用git克隆最新版本 2.先在themes目录创建一个next文件夹,然后在hexo站点目录下右键打开Git Ba ...
- [原创]K8_Delphi源码免杀系列教程
[原创]K8_Delphi源码免杀系列教程[2014] 虽是2014年的,但免杀思路方法并未过时 比如函数动态调用\代码注释法等至今依然有效 链接:https://pan.baidu.com/s/1H ...
- python 牛客网 你的输出为:空。请检查一下你的代码，有没有循环输入处理多个case。问题解决
你的输出为:空.请检查一下你的代码,有没有循环输入处理多个case.点击查看如何处理多个case 核心:他这个程序测试正确与否的流程是 连续输入多组测试数据进行测试,只有每组数据都对才行 所以必须使用 ...
- Kaggle项目实战一：Titanic: Machine Learning from Disaster
项目地址 https://www.kaggle.com/c/titanic 项目介绍: 除了乘客的编号以外,还包括下表中10个字段,构成了数据的所有特征 Variable Definition Key ...
- SpringBoot之OAuth2.0学习之客户端快速上手
2.1.@EnableOAuth2Sso 这个注解是为了开启OAuth2.0的sso功能,如果我们配置了WebSecurityConfigurerAdapter,它通过添加身份验证过滤器和身份验证(e ...
- SQL Server性能优化（9）聚集索引的存储结构
一.索引的概念和分类 索引的概念大家都知道,日常开发中我们也会使用常见的聚集索引.非聚集索引.但是除了这两者以外,sqlserver中还提供其他的索引,如: a. 唯一索引:不包含重复键的索引,聚集索 ...
- C++模板的应用
需求:类比数组类,只不过数组类型不再是整型.浮点型等,也可以是类. 1.创建模板类 头文件 #ifndef MYVECTOR_H #define MYVECTOR_H #include <ios ...
- Struts2学习（一）————Struts2入门
首先推荐一本书,虽然我还没看过,但是我以后肯定会看的,<Struts+技术内幕>提取密码:kg6w .现在只是停留在会使用struts2的层次,自己也想继续深入研究,但是感觉自己的知识面还 ...
- sass重构响应式unofficial‘s博客轻松适应移动端
前言: 刚刚玩博客园几天时间,发现挺不错的,对于我这个懒人又是一个爱折腾的人来说挺不错的,对于上班玩电脑,下班玩手机的用户来说,博客园中我的博客有一点给我的感觉不是很友好,电脑端看起来很美观的一个页面 ...
- C# 取得上月月头和月尾、上周的第一天和最后一天。
using System; using System.Collections.Generic; using System.Linq; using System.Text; using System.T ...