java poi excel导出，excel图片导出，每列前面加入图片导出 。
上图看效果 导出每列加上不同图片
1.导包
org.apache.poi
poi
3.16
org.apache.poi
poi-ooxml
3.16
org.apache.poi
poi-ooxml-schemas
3.16
2。工具类 ExportExcelUtils
ExportExcelUtils 网上原本的普通导出 后来我改进 加入图片列 这是普通的导出 无图片
/**
* poi导出
* @author Administrator
*
*/
public class ExportExcelUtils {
private String title; // 导出表格的表名
private String[] rowName;// 导出表格的列名
private List dataList = new ArrayList(); // 对象数组的List集合
private HttpServletResponse response;
// 传入要导入的数据
public ExportExcelUtils(String title,String[] rowName,List dataList,HttpServletResponse response){
this.title=title;
this.rowName=rowName;
this.dataList=dataList;
this.response = response;
}
// 导出数据
public void exportData(){
try {
HSSFWorkbook workbook =new HSSFWorkbook(); // 创建一个excel对象
HSSFSheet sheet =workbook.createSheet(title); // 创建表格
// 产生表格标题行
HSSFRow rowm =sheet.createRow(0); // 行
HSSFCell cellTiltle =rowm.createCell(0); // 单元格
// sheet样式定义
HSSFCellStyle columnTopStyle = this.getColumnTopStyle(workbook); // 头样式
HSSFCellStyle style = this.getStyle(workbook); // 单元格样式
/**
* 参数说明
* 从0开始 第一行 第一列 都是从角标0开始
* 行 列 行列 (0,0,0,5) 合并第一行 第一列 到第一行 第六列
* 起始行，起始列，结束行，结束列
*
* new Region() 这个方法使过时的
*/
// 合并第一行的所有列
sheet.addMergedRegion(new CellRangeAddress(0, (short) 0, 0, (short) (rowName.length-1)));
cellTiltle.setCellStyle(columnTopStyle);
cellTiltle.setCellValue(title);
int columnNum = rowName.length; // 表格列的长度
HSSFRow rowRowName = sheet.createRow(1); // 在第二行创建行
HSSFCellStyle cells =workbook.createCellStyle();
cells.setBottomBorderColor(HSSFColor.BLACK.index);
rowRowName.setRowStyle(cells);
// 循环 将列名放进去
for (int i = 0; i < columnNum; i++) {
HSSFCell cellRowName = rowRowName.createCell((int)i);
cellRowName.setCellType(HSSFCell.CELL_TYPE_STRING); // 单元格类型
HSSFRichTextString text = new HSSFRichTextString(rowName[i]); // 得到列的值
cellRowName.setCellValue(text); // 设置列的值
cellRowName.setCellStyle(columnTopStyle); // 样式
}
// 将查询到的数据设置到对应的单元格中
for (int i = 0; i < dataList.size(); i++) {
Object[] obj = dataList.get(i);//遍历每个对象
HSSFRow row = sheet.createRow(i+2);//创建所需的行数
for (int j = 0; j < obj.length; j++) {
HSSFCell cell = null; //设置单元格的数据类型
if(j==0){
// 第一列设置为序号
cell = row.createCell(j,HSSFCell.CELL_TYPE_NUMERIC);
cell.setCellValue(i+1);
}else{
cell = row.createCell(j,HSSFCell.CELL_TYPE_STRING);
if(!"".equals(obj[j]) && obj[j] != null){
cell.setCellValue(obj[j].toString()); //设置单元格的值
}else{
cell.setCellValue(" ");
}
}
cell.setCellStyle(style); // 样式
}
}
// 让列宽随着导出的列长自动适应
sheet.autoSizeColumn((short)0); //调整第一列宽度
sheet.autoSizeColumn((short)1); //调整第二列宽度
sheet.autoSizeColumn((short)2); //调整第三列宽度
sheet.autoSizeColumn((short)3); //调整第四列宽度
sheet.autoSizeColumn((short)4); //调整第五列宽度
sheet.autoSizeColumn((short)5); //调整第六列宽度
if(workbook !=null){
try
{
// excel 表文件名
String fileName = title + String.valueOf(System.currentTimeMillis()).substring(4, 13) + ".xls";
String fileName11 = URLEncoder.encode(fileName,"UTF-8");
String fileName12 = java.net.URLDecoder.decode(fileName11, "UTF-8");
String headStr = "attachment; filename=\"" + fileName12 + "\"";
System.out.println(headStr);
response.setContentType("APPLICATION/OCTET-STREAM");
// response.setHeader("Content-Disposition", headStr);
response.setHeader("Content-Disposition", "attachment;filename=" + new String(fileName12.getBytes("gb2312"), "ISO8859-1" ));
OutputStream out = response.getOutputStream();
workbook.write(out);
out.flush();
out.close();
}
catch (IOException e)
{
e.printStackTrace();
}
}
}catch(Exception e){
e.printStackTrace();
}
}
public HSSFCellStyle getColumnTopStyle(HSSFWorkbook workbook) {
// 设置字体
HSSFFont font = workbook.createFont();
//设置字体大小
font.setFontHeightInPoints((short)11);
//字体加粗
font.setBoldweight(HSSFFont.BOLDWEIGHT_BOLD);
//设置字体名字
font.setFontName("Courier New");
//设置样式;
HSSFCellStyle style = workbook.createCellStyle();
//设置底边框;
style.setBorderBottom(HSSFCellStyle.BORDER_THIN);
//设置底边框颜色;
style.setBottomBorderColor(HSSFColor.BLACK.index);
//设置左边框;
style.setBorderLeft(HSSFCellStyle.BORDER_THIN);
//设置左边框颜色;
style.setLeftBorderColor(HSSFColor.BLACK.index);
//设置右边框;
style.setBorderRight(HSSFCellStyle.BORDER_THIN);
//设置右边框颜色;
style.setRightBorderColor(HSSFColor.BLACK.index);
//设置顶边框;
style.setBorderTop(HSSFCellStyle.BORDER_THIN);
//设置顶边框颜色;
style.setTopBorderColor(HSSFColor.BLACK.index);
//在样式用应用设置的字体;
style.setFont(font);
//设置自动换行;
style.setWrapText(false);
//设置水平对齐的样式为居中对齐;
style.setAlignment(HSSFCellStyle.ALIGN_CENTER);
//设置垂直对齐的样式为居中对齐;
style.setVerticalAlignment(HSSFCellStyle.VERTICAL_CENTER);
return style;
}
public HSSFCellStyle getStyle(HSSFWorkbook workbook) {
// 设置字体
HSSFFont font = workbook.createFont();
//设置字体大小
//font.setFontHeightInPoints((short)10);
//字体加粗
//font.setBoldweight(HSSFFont.BOLDWEIGHT_BOLD);
//设置字体名字
font.setFontName("Courier New");
//设置样式;
HSSFCellStyle style = workbook.createCellStyle();
//设置底边框;
style.setBorderBottom(HSSFCellStyle.BORDER_THIN);
//设置底边框颜色;
style.setBottomBorderColor(HSSFColor.BLACK.index);
//设置左边框;
style.setBorderLeft(HSSFCellStyle.BORDER_THIN);
//设置左边框颜色;
style.setLeftBorderColor(HSSFColor.BLACK.index);
//设置右边框;
style.setBorderRight(HSSFCellStyle.BORDER_THIN);
//设置右边框颜色;
style.setRightBorderColor(HSSFColor.BLACK.index);
//设置顶边框;
style.setBorderTop(HSSFCellStyle.BORDER_THIN);
//设置顶边框颜色;
style.setTopBorderColor(HSSFColor.BLACK.index);
//在样式用应用设置的字体;
style.setFont(font);
//设置自动换行;
style.setWrapText(false);
//设置水平对齐的样式为居中对齐;
style.setAlignment(HSSFCellStyle.ALIGN_CENTER);
//设置垂直对齐的样式为居中对齐;
style.setVerticalAlignment(HSSFCellStyle.VERTICAL_CENTER);
return style;
}
}
这是普通导出方法 无图片
@RequestMapping("/exportExcel")
public ModelAndView exportExcel(HttpServletRequest request,HttpServletResponse response) {
//PageDto pagedto = new PageDto(request.getParameter("pageNumber"),request.getRequestURL());
//vipuserservice.loadPageDto(pagedto);
List findUser = vipuserservice.findUser();
try {
String title ="会员信息表";
String[] rowsName=new String[]{"序号","ID","姓名","关系","身份证","充值金额","电话","扣费"};
List dataList = new ArrayList();
Object[] objs = null;
for (int i = 0; i < findUser.size(); i++) {
ActivityUser po = findUser.get(i);
objs = new Object[rowsName.length];
objs[0] = i;
objs[1] = po.getId();
objs[2] = po.getName();
objs[3] = po.getRelation();
objs[4] = po.getUserno();
// if(po.getSex()==1){
// objs[5] = '男';
// }else{
// objs[5] = '女';
// }
objs[5] = po.getMoney();
objs[6] = po.getPhone();
objs[7] = po.getCharging();
dataList.add(objs);
}
ExportExcelUtils ex =new ExportExcelUtils(title, rowsName, dataList,response);
ex.exportData();
} catch (Exception e) {
e.printStackTrace();
}
return null;
}
3.有需求导出需求前面列加入图片 改进后的代码
/**
* poi导出
* @author yangjaibin
*
*/
public class ExportExcelUtils
{
private String title; // 导出表格的表名
private String[] rowName;// 导出表格的列名
private List dataList = new ArrayList(); // 对象数组的List集合
private HttpServletResponse response;
// 传入要导入的数据
public ExportExcelUtils(String title, String[] rowName, List dataList, HttpServletResponse response)
{
this.title = title;
this.rowName = rowName;
this.dataList = dataList;
this.response = response;
}
// 导出数据
public void exportData()
{
try
{
HSSFWorkbook workbook = new HSSFWorkbook(); // 创建一个excel对象
HSSFSheet sheet = workbook.createSheet(title); // 创建表格
HSSFPatriarch patriarch = sheet.createDrawingPatriarch();
// 产生表格标题行
HSSFRow rowm = sheet.createRow(0); // 行
HSSFCell cellTiltle = rowm.createCell(0); // 单元格
// sheet样式定义
HSSFCellStyle columnTopStyle = this.getColumnTopStyle(workbook); // 头样式
HSSFCellStyle style = this.getStyle(workbook); // 单元格样式
/**
* 参数说明
* 从0开始 第一行 第一列 都是从角标0开始
* 行 列 行列 (0,0,0,5) 合并第一行 第一列 到第一行 第六列
* 起始行，起始列，结束行，结束列
*
* new Region() 这个方法使过时的
*/
// 合并第一行的所有列
sheet.addMergedRegion(new CellRangeAddress(0, (short) 0, 0, (short) (rowName.length - 1)));
cellTiltle.setCellStyle(columnTopStyle);
cellTiltle.setCellValue(title);
int columnNum = rowName.length; // 表格列的长度
HSSFRow rowRowName = sheet.createRow(1); // 在第二行创建行
HSSFCellStyle cells = workbook.createCellStyle();
cells.setBottomBorderColor(HSSFColor.BLACK.index);
rowRowName.setRowStyle(cells);
// 循环 将列名放进去
for (int i = 0; i < columnNum; i++)
{
HSSFCell cellRowName = rowRowName.createCell((int) i);
cellRowName.setCellType(HSSFCell.CELL_TYPE_STRING); // 单元格类型
HSSFRichTextString text = new HSSFRichTextString(rowName[i]); // 得到列的值
cellRowName.setCellValue(text); // 设置列的值
cellRowName.setCellStyle(columnTopStyle); // 样式
}
// 将查询到的数据设置到对应的单元格中
for (int i = 0; i < dataList.size(); i++)
{
Object[] obj = dataList.get(i);//遍历每个对象
HSSFRow row = sheet.createRow(i + 2);//创建所需的行数
row.setHeightInPoints(40);
for (int j = 0; j < obj.length; j++)
{
HSSFCell cell = null; //设置单元格的数据类型
if (j == 0)
{
// 第一列设置为序号
cell = row.createCell(j, HSSFCell.CELL_TYPE_NUMERIC);
cell.setCellValue(i + 1);
}
else
{
cell = row.createCell(j, HSSFCell.CELL_TYPE_STRING);
if (!"".equals(obj[j]) && obj[j] != null)
{
if (obj[j].toString().length() > 30)
{
cell.setCellValue(" ");
drawPictureInfoExcel(workbook, patriarch, obj[j].toString(), i + 2);//i+2代表当前的行
}
else
{
cell.setCellValue(obj[j].toString());
}
//设置单元格的值
}
else
{
cell.setCellValue(" ");
}
}
cell.setCellStyle(style); // 样式
}
}
// 让列宽随着导出的列长自动适应
sheet.setColumnWidth(0, 8 * 256); //调整第一列宽度
sheet.setColumnWidth(1, 8 * 256);
sheet.setColumnWidth(2, 20 * 256); ///调整第二列宽度
sheet.setColumnWidth(3, 20 * 256);
sheet.setColumnWidth(4, 20 * 256);
sheet.setColumnWidth(5, 21 * 256);
sheet.setColumnWidth(6, 20 * 256);
if (workbook != null)
{
try
{
// excel 表文件名
String fileName = title + String.valueOf(System.currentTimeMillis()).substring(4, 13) + ".xls";
String fileName11 = URLEncoder.encode(fileName, "UTF-8");
String fileName12 = java.net.URLDecoder.decode(fileName11, "UTF-8");
String headStr = "attachment; filename=\"" + fileName12 + "\"";
response.setContentType("APPLICATION/OCTET-STREAM");
// response.setHeader("Content-Disposition", headStr);
response.setHeader("Content-Disposition",
"attachment;filename=" + new String(fileName12.getBytes("gb2312"), "ISO8859-1"));
OutputStream out = response.getOutputStream();
workbook.write(out);
out.flush();
out.close();
}
catch (IOException e)
{
e.printStackTrace();
}
}
}
catch (Exception e)
{
e.printStackTrace();
}
}
private void drawPictureInfoExcel(HSSFWorkbook wb, HSSFPatriarch patriarch, String pictureUrl, int rowIndex)
{
//rowIndex代表当前行
try
{
if (pictureUrl != null)
{
URL url = new URL(pictureUrl);//获取人员照片的地址
//打开链接
HttpURLConnection conn = (HttpURLConnection) url.openConnection();
//设置请求方式为"GET"
conn.setRequestMethod("GET");
//超时响应时间为5秒
conn.setConnectTimeout(5 * 1000);
//通过输入流获取图片数据
InputStream inStream = conn.getInputStream();
//得到图片的二进制数据，以二进制封装得到数据，具有通用性
byte[] data = readInputStream(inStream);
//anchor主要用于设置图片的属性
HSSFClientAnchor anchor = new HSSFClientAnchor(0, 0, 1023, 255, (short) 1, rowIndex, (short) 1,
rowIndex);
//Sets the anchor type （图片在单元格的位置）
//0 = Move and size with Cells, 2 = Move but don't size with cells, 3 = Don't move or size with cells.
anchor.setAnchorType(0);
patriarch.createPicture(anchor, wb.addPicture(data, HSSFWorkbook.PICTURE_TYPE_JPEG));
}
}
catch (IOException e)
{
e.printStackTrace();
}
catch (Exception e)
{
e.printStackTrace();
}
}
private static byte[] readInputStream(InputStream inStream) throws Exception
{
ByteArrayOutputStream outStream = new ByteArrayOutputStream();
//创建一个Buffer字符串
byte[] buffer = new byte[1024];
//每次读取的字符串长度，如果为-1，代表全部读取完毕
int len = 0;
//使用一个输入流从buffer里把数据读取出来
while ((len = inStream.read(buffer)) != -1)
{
//用输出流往buffer里写入数据，中间参数代表从哪个位置开始读，len代表读取的长度
outStream.write(buffer, 0, len);
}
//关闭输入流
inStream.close();
//把outStream里的数据写入内存
return outStream.toByteArray();
}
public HSSFCellStyle getStyle(HSSFWorkbook workbook)
{
// 设置字体
HSSFFont font = workbook.createFont();
//设置字体大小
font.setFontHeightInPoints((short) 9);
//字体加粗
//font.setBoldweight(HSSFFont.BOLDWEIGHT_BOLD);
//设置字体名字
font.setFontName("Courier New");
//设置样式;
HSSFCellStyle style = workbook.createCellStyle();
//设置底边框;
style.setBorderBottom(HSSFCellStyle.BORDER_THIN);
//设置底边框颜色;
style.setBottomBorderColor(HSSFColor.BLACK.index);
//设置左边框;
style.setBorderLeft(HSSFCellStyle.BORDER_THIN);
//设置左边框颜色;
style.setLeftBorderColor(HSSFColor.BLACK.index);
//设置右边框;
style.setBorderRight(HSSFCellStyle.BORDER_THIN);
//设置右边框颜色;
style.setRightBorderColor(HSSFColor.BLACK.index);
//设置顶边框;
style.setBorderTop(HSSFCellStyle.BORDER_THIN);
//设置顶边框颜色;
style.setTopBorderColor(HSSFColor.BLACK.index);
//在样式用应用设置的字体;
style.setFont(font);
//设置自动换行;
style.setWrapText(false);
//设置水平对齐的样式为居中对齐;
style.setAlignment(HSSFCellStyle.ALIGN_CENTER);
//设置垂直对齐的样式为居中对齐;
style.setVerticalAlignment(HSSFCellStyle.VERTICAL_CENTER);
return style;
}
public HSSFCellStyle getColumnTopStyle(HSSFWorkbook workbook)
{
// 设置字体
HSSFFont font = workbook.createFont();
//设置字体大小
font.setFontHeightInPoints((short) 10);
//字体加粗
font.setBoldweight(HSSFFont.BOLDWEIGHT_BOLD);
//设置字体名字
font.setFontName("Courier New");
//设置样式;
HSSFCellStyle style = workbook.createCellStyle();
//设置底边框;
style.setBorderBottom(HSSFCellStyle.BORDER_THIN);
//设置底边框颜色;
style.setBottomBorderColor(HSSFColor.BLACK.index);
//设置左边框;
style.setBorderLeft(HSSFCellStyle.BORDER_THIN);
//设置左边框颜色;
style.setLeftBorderColor(HSSFColor.BLACK.index);
//设置右边框;
style.setBorderRight(HSSFCellStyle.BORDER_THIN);
//设置右边框颜色;
style.setRightBorderColor(HSSFColor.BLACK.index);
//设置顶边框;
style.setBorderTop(HSSFCellStyle.BORDER_THIN);
//设置顶边框颜色;
style.setTopBorderColor(HSSFColor.BLACK.index);
//在样式用应用设置的字体;
style.setFont(font);
//设置自动换行;
style.setWrapText(false);
//设置水平对齐的样式为居中对齐;
style.setAlignment(HSSFCellStyle.ALIGN_CENTER);
//设置垂直对齐的样式为居中对齐;
style.setVerticalAlignment(HSSFCellStyle.VERTICAL_CENTER);
return style;
}
}
方法调用
@RequestMapping(value = "/exportHandConf", method = { RequestMethod.POST, RequestMethod.GET })
public @ResponseBody JSONObject exportHandConf(Long metId, HttpServletRequest request,
HttpServletResponse response)
{
JSONObject result = new JSONObject();
//查询需要导出的数据
List> maps =
InfoService.getId(metId);
if (maps.size() != 0)
{
try
{
String title = "人员";
String[] rowsName = new String[] { "序号", "头像", "昵称", "姓名", "号码", "企业"};
List dataList = new ArrayList();
Object[] objs = null;
for (int i = 0; i < maps.size(); i++)
{
objs = new Object[rowsName.length];
objs[0] = i;
objs[1] = maps.get(i).get("headUrl"); //头像url
objs[2] = maps.get(i).get("nickname");
objs[3] = maps.get(i).get("realName");
objs[4] = maps.get(i).get("signPhone");
objs[5] = maps.get(i).get("signunit");
dataList.add(objs);
}
ExportExcelUtils ex = new ExportExcelUtils(title, rowsName, dataList, response);
ex.exportData();
}
catch (Exception e)
{
e.printStackTrace();
}
}
result.put("flag", "true");
return result;
}
简单说明一下
在原先工具类基础上 加入 drawPictureInfoExcel readInputStream 图片写入 方法
在写入表格时 因为我图片url 长度 很长，所以 我判断url图片的 长度 然后调用写入方法 写入图片
调整图片的位置 在哪个单元格
每一列的间距
