poi导出excel 并处理插入网络图片 范例 处理文件下载中文乱码

package com.inborn.inshop.controller.product;

import com.inborn.inshop.common.util.DateUtils;import com.inborn.inshop.model.Goods;import com.inborn.inshop.service.GoodsService;import com.inborn.inshop.vo.ProductExportVo;import org.apache.commons.lang3.StringUtils;import org.apache.poi.hssf.usermodel.*;import org.apache.poi.hssf.util.HSSFColor;import org.apache.poi.ss.usermodel.CellStyle;import org.apache.poi.ss.usermodel.CreationHelper;import org.apache.poi.ss.util.CellRangeAddress;import org.slf4j.Logger;import org.slf4j.LoggerFactory;import org.springframework.stereotype.Controller;import org.springframework.web.bind.annotation.RequestMapping;import org.springframework.web.bind.annotation.ResponseBody;import javax.annotation.Resource;import javax.servlet.http.HttpServletRequest;import javax.servlet.http.HttpServletResponse;import java.io.ByteArrayOutputStream;import java.io.IOException;import java.io.InputStream;import java.io.OutputStream;import java.math.BigInteger;import java.net.URL;import java.net.URLConnection;import java.util.Date;import java.util.HashMap;import java.util.List;import java.util.Map;

/** * Created by Administrator on 2017/5/2 0002. */@Controller@RequestMapping(value = "/product")public class ProductExportController {    private static Logger logger = LoggerFactory.getLogger(ProductController.class);    @Resource    private GoodsService goodsService;    // 显示的导出表的标题    private String title="商品列表";    // 导出表的列名    private String[] rowName={"商品编号","商品图片","商品分类","商品品牌","商品描述","预估价值","鉴定价值","出售价格","寄卖方式","出售方式","当前状态","创建时间"};    /**     * 商品导出     * @param info     * @param catName     * @param brandCnName     */    @RequestMapping(value = "/exportList")    @ResponseBody    public void exportList(HttpServletRequest request,                           HttpServletResponse response, Goods info, String catName, String brandCnName) {        Map searchMap = new HashMap();

if (info.getId() != null) {            searchMap.put("id", info.getId());          // searchMap.put("id",Long.parseLong("132554300037214"));        }        if (StringUtils.isNotBlank(info.getGoodsName())) {            searchMap.put("goodsName", "%" + info.getGoodsName() + "%");        }        if (StringUtils.isNotBlank(info.getSellerDesc())) {            searchMap.put("sellerDesc", "%" + info.getSellerDesc() + "%");        }

if (info.getGoodsStatus() != null) {            searchMap.put("goodsStatus", info.getGoodsStatus());        }        if (StringUtils.isNotBlank(catName)) {            searchMap.put("catName", "%" + catName + "%");        }        if (StringUtils.isNotBlank(brandCnName)) {            searchMap.put("brandCnName", "%" + brandCnName + "%");        }        if (info.getConsignWay() != null) {            searchMap.put("consignWay", info.getConsignWay());        }

//  PageHelper.startPage(curPage, pageSize);        List<ProductExportVo> dataList = goodsService.querytProdListByMap2(searchMap);       // 使用流将数据导出        OutputStream out = null;        try {      // 防止中文乱码            String fileName= toUtf8String(DateUtils.dateToString(new Date(),"yyyy-MM-dd")+title+".xls");            String headStr = "attachment; filename="+fileName;                   // + new String((title+".xls").getBytes("utf-8"), "utf-8") + "\"";            response.setContentType("APPLICATION/OCTET-STREAM");            response.setHeader("Content-Disposition", headStr);            response.setCharacterEncoding("utf-8");            out = response.getOutputStream();            HSSFWorkbook workbook = new HSSFWorkbook(); // 创建工作簿对象            HSSFSheet sheet = workbook.createSheet(title); // 创建工作表            sheet.setColumnWidth(0, 20 * 256);            sheet.setColumnWidth(1, 30 * 256);            sheet.setColumnWidth(2, 25 * 256);            sheet.setColumnWidth(3, 25 * 256);            sheet.setColumnWidth(4, 50 * 256);            sheet.setColumnWidth(5, 25 * 256);            sheet.setColumnWidth(6, 25 * 256);            sheet.setColumnWidth(7, 25 * 256);            sheet.setColumnWidth(8, 25 * 256);            sheet.setColumnWidth(9, 25 * 256);            sheet.setColumnWidth(10, 25 * 256);            sheet.setColumnWidth(11, 30 * 256);            // 产生表格标题行           // HSSFRow rowm = sheet.createRow(0);           // HSSFCell cellTiltle = rowm.createCell(0);

// sheet样式定义【getColumnTopStyle()/getStyle()均为自定义方法 - 在下面 - 可扩展】            HSSFCellStyle columnTopStyle = this.getColumnTopStyle(workbook);// 获取列头样式对象            HSSFCellStyle style = this.getStyle(workbook); // 单元格样式对象            /*             * sheet.addMergedRegion(new             * CellRangeAddress(0,dataList.get(0).length-1 , 0,             * (rowName.length-1)));             */// 合并单元格//            sheet.addMergedRegion(new CellRangeAddress(0, 1, 0,11));// 列行//            cellTiltle.setCellStyle(style);//            cellTiltle.setCellValue(title);

// 定义所需列数            int columnNum = rowName.length;            HSSFRow hearderRow = sheet.createRow(0); // 在索引0的位置创建行(最顶端的行开始的第一行)            hearderRow.setHeight((short) (30 * 20));            // 将列头设置到sheet的单元格中            for (int n = 0; n < columnNum; n++) {                HSSFCell cellRowName = hearderRow.createCell(n); // 创建列头对应个数的单元格                cellRowName.setCellType(HSSFCell.CELL_TYPE_STRING); // 设置列头单元格的数据类型                HSSFRichTextString text = new HSSFRichTextString(rowName[n]);                cellRowName.setCellValue(text); // 设置列头单元格的值                cellRowName.setCellStyle(columnTopStyle); // 设置列头单元格样式            }            // 将查询出的数据设置到sheet对应的单元格中            for (int i = 0; i < dataList.size(); i++) {                ProductExportVo  obj= (ProductExportVo)dataList.get(i);// 遍历每个对象                HSSFRow row = sheet.createRow(i + 1);// 创建所需的行数（从第二行开始写数据）                row.setHeight((short) (135 * 20));

String id=obj.getId()+"";                HSSFCell cell = row.createCell(0, HSSFCell.CELL_TYPE_STRING);                cell.setCellValue(id);                cell.setCellStyle(style); // 设置单元格样式                String imgeUrl=obj.getSquareImage();                if(StringUtils.isNotBlank(imgeUrl)){                    // 创建一个图片区域                   try {                       HSSFPatriarch patriarch = sheet.createDrawingPatriarch();                       HSSFClientAnchor anchor;                       // 加载图片                       anchor = new HSSFClientAnchor(0, 0, 1023, 255, (short) 1,i+1, (short) 1, i+1);                       anchor.setAnchorType(0);                       patriarch.createPicture(anchor, loadPicture(imgeUrl, workbook));                   }catch (Exception e){                       logger.info("下载图片资源失败"+e.toString());                   }                }else{                    cell = row.createCell(1, HSSFCell.CELL_TYPE_STRING);                    cell.setCellValue(imgeUrl);                    cell.setCellStyle(style); // 设置单元格样式                }

cell = row.createCell(2, HSSFCell.CELL_TYPE_STRING);                cell.setCellStyle(style); // 设置单元格样式                if(StringUtils.isNotBlank(obj.getCatName())){                    String catNameValue=obj.getCatName();                    cell.setCellValue(catNameValue);                }

cell = row.createCell(3, HSSFCell.CELL_TYPE_STRING);                cell.setCellStyle(style); // 设置单元格样式                if(StringUtils.isNotBlank(obj.getBrandCnName())){                    String brandCnNameValue=obj.getBrandCnName();                    cell.setCellValue(brandCnNameValue);                }

cell = row.createCell(4, HSSFCell.CELL_TYPE_STRING);                cell.setCellStyle(style); // 设置单元格样式                if(StringUtils.isNotBlank(obj.getSellerDesc())){                    String sellerDescValue=obj.getSellerDesc();                    cell.setCellValue(sellerDescValue);                }

cell = row.createCell(5, HSSFCell.CELL_TYPE_NUMERIC);                cell.setCellStyle(style); // 设置单元格样式                if(obj.getEstimateMallPrice()!=null){                    HSSFCellStyle cellStyle =this.getColumnTopStyle(workbook);                   Long estimateMallPriceValue=obj.getEstimateMallPrice();                    HSSFDataFormat format= workbook.createDataFormat();                    cellStyle.setDataFormat(format.getFormat("￥#,##0"));                    cell.setCellValue(estimateMallPriceValue);                    cell.setCellStyle(cellStyle); // 设置单元格样式               }

cell = row.createCell(6, HSSFCell.CELL_TYPE_NUMERIC);                cell.setCellStyle(style); // 设置单元格样式               if(obj.getMktPrice()!=null){                   Long mktPriceValue=obj.getMktPrice();                   HSSFCellStyle cellStyle =this.getColumnTopStyle(workbook);                   HSSFDataFormat format= workbook.createDataFormat();                   cellStyle.setDataFormat(format.getFormat("￥#,##0"));                   cell.setCellValue(mktPriceValue);                   cell.setCellStyle(cellStyle); // 设置单元格样式                }

cell = row.createCell(7, HSSFCell.CELL_TYPE_NUMERIC);                cell.setCellStyle(style); // 设置单元格样式                if(obj.getMallPrice()!=null){                    Long mallPriceValue=obj.getMallPrice();                    HSSFCellStyle cellStyle =this.getColumnTopStyle(workbook);                    HSSFDataFormat format= workbook.createDataFormat();                    cellStyle.setDataFormat(format.getFormat("￥#,##0"));                    cell.setCellValue(mallPriceValue);                    cell.setCellStyle(cellStyle); // 设置单元格样式                }

cell = row.createCell(8, HSSFCell.CELL_TYPE_STRING);                cell.setCellStyle(style); // 设置单元格样式                if(obj.getConsignWay()!=null){                    Integer consignWayValue=obj.getConsignWay();                    if(consignWayValue==1){                        cell.setCellValue("平台自营");                    }                    if(consignWayValue==2){                        cell.setCellValue("邮寄");                    }                    if(consignWayValue==3){                        cell.setCellValue("非邮寄");                    }                }                cell = row.createCell(9, HSSFCell.CELL_TYPE_STRING);                cell.setCellStyle(style); // 设置单元格样式                if(obj.getActivityType()!=null){                    Integer activityTypeValue=obj.getActivityType();

if(activityTypeValue==0){                        cell.setCellValue("一口价");                    }                    if(activityTypeValue==1){                        cell.setCellValue("限时抢购");                    }                    if(activityTypeValue==2){                        cell.setCellValue("寄拍");                    }

}

cell = row.createCell(10, HSSFCell.CELL_TYPE_STRING);                cell.setCellStyle(style); // 设置单元格样式                if(obj.getGoodsStatus()!=null){                    Integer goodsStatusValue=obj.getGoodsStatus();                    if(goodsStatusValue==1){                        cell.setCellValue("不符合");                    }                    if(goodsStatusValue==10){                        cell.setCellValue("待审核");                    }                    if(goodsStatusValue==20){                        cell.setCellValue("待确认");                    }                    if(goodsStatusValue==30){                        cell.setCellValue("待付费");                    }                    if(goodsStatusValue==40){                        cell.setCellValue("待鉴定");                    }                    if(goodsStatusValue==50){                        cell.setCellValue("待上架");                    }                    if(goodsStatusValue==60){                        cell.setCellValue("出售中");                    }                    if(goodsStatusValue==70){                        cell.setCellValue("已出售");                    }                    if(goodsStatusValue==71){                        cell.setCellValue("线下售出");                    }                    if(goodsStatusValue==80){                        cell.setCellValue("已下架");                    }                    if(goodsStatusValue==90){                        cell.setCellValue("待退回");                    }                    if(goodsStatusValue==91){                        cell.setCellValue("退回中");                    }                    if(goodsStatusValue==92){                        cell.setCellValue("已退回");                    }                    if(goodsStatusValue==93){                        cell.setCellValue("已取消");                    }                }

cell = row.createCell(11);                cell.setCellStyle(style); // 设置单元格样式                if(obj.getCreateTime()!=null){                    Date createTimeValue=obj.getCreateTime();

// 给单元格 设置值                    cell.setCellValue(createTimeValue); // 第一行第一列 插入日期                    // 定义Cell格式                    HSSFCellStyle columnTopStyle2 = this.getColumnTopStyle(workbook);// 获取列头样式对象                    CreationHelper creationHelper = workbook.getCreationHelper();                    columnTopStyle2.setDataFormat(                            creationHelper.createDataFormat().getFormat("yyyy-MM-dd hh:mm:ss")                    );                    cell.setCellStyle(columnTopStyle2); // 设置单元格样式                }            }            if (workbook != null) {                try {                    workbook.write(out);                    out.flush();                } catch (IOException e) {                    logger.info(e.toString());                }            }

} catch (Exception e) {            logger.info(e.toString());        } finally {            if(out!=null){                try {                    out.close();                }catch (IOException e){                   logger.info(e.toString());                }            }        }    }    /*    * 列数据信息单元格样式    */    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(true);        // 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;    }

/*     * 列头单元格样式     */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;        }

/**     *     * @param imageUrl     * @param wb     * @return     * @throws IOException     */    private static int loadPicture(String imageUrl, HSSFWorkbook wb) throws IOException {        int pictureIndex;        if(StringUtils.indexOf(imageUrl,"x-oss-process")<0){            imageUrl = imageUrl+"?x-oss-process=style/ss200";        }        URL url = new URL(imageUrl);        ByteArrayOutputStream bos = null;        try {            URLConnection conn = url.openConnection();            InputStream in = conn.getInputStream();            bos = new ByteArrayOutputStream();            int c;            while ((c = in.read()) != -1)                bos.write(c);            pictureIndex = wb.addPicture(bos.toByteArray(), HSSFWorkbook.PICTURE_TYPE_PNG);        } finally {            if (bos != null)                bos.close();        }        return pictureIndex;    }    public static String toUtf8String(String s){        StringBuffer sb = new StringBuffer();        for (int i=0;i<s.length();i++){            char c = s.charAt(i);            if (c >= 0 && c <= 255){sb.append(c);}            else{                byte[] b;                try { b = Character.toString(c).getBytes("utf-8");}                catch (Exception ex) {                    System.out.println(ex);                    b = new byte[0];                }                for (int j = 0; j < b.length; j++) {                    int k = b[j];                    if (k < 0) k += 256;                    sb.append("%" + Integer.toHexString(k).toUpperCase());                }            }        }        return sb.toString();    }}

maven依赖包

<dependency>   <groupId>org.apache.poi</groupId>   <artifactId>poi</artifactId>   <version>3.9</version></dependency><dependency>   <groupId>org.apache.poi</groupId>   <artifactId>poi-ooxml</artifactId>   <version>3.9</version></dependency><dependency>   <groupId>org.apache.poi</groupId>   <artifactId>poi-ooxml-schemas</artifactId>   <version>3.9</version></dependency>

结果图：