前台

<form id="exportForm" action="/foodBreak/statistical/importData" method="post"><input type="hidden" name="img" id="img" /><input type="hidden" name="dataText" id="dataText" />
</form>

$('#importBtn').live('click', function () {var data = myChart.getDataURL("png");$("#img").val(data);$('#dataText').val('a_b_c_d,0_2_1_2');$("#exportForm").submit();
});

<script type="text/javascript">var myChart = '';function loadMap(areaList,countryList, provinceList,cityList,reportDeleteList) {var dom = document.getElementById("container");myChart = echarts.init(dom);var app = {};option = null;option = {title : {text: '11',subtext: ''
         },tooltip : {trigger: 'axis'
         },legend: {data:['1','2','3','4']},toolbox: {show : true,feature : {dataView : {show: true, readOnly: false},magicType : {show: true, type: ['line', 'bar']},restore : {show: true},saveAsImage : {show: true}}},calculable : true,xAxis : [{type : 'category',data :  areaList/*['1月','2月','3月','4月','5月','6月','7月','8月','9月','10月','11月','12月']*/
            }],yAxis : [{type : 'value'
            }],series : [{name:'1',type:'bar',data:countryList,markPoint : {data : [{type : 'max', name: '最大值'},{type : 'min', name: '最小值'}]}/*markLine : {
                  data : [
                     {type : 'average', name: '平均值'}
                  ]
               }*/
            },{name:'2',type:'bar',data:provinceList,markPoint : {data : [{type : 'max', name: '最大值'},{type : 'min', name: '最小值'}]}/*markLine : {
                  data : [
                     {type : 'average', name : '平均值'}
                  ]
               }*/
            },{name:'3',type:'bar',data:cityList,markPoint : {data : [{type : 'max', name: '最大值'},{type : 'min', name: '最小值'}]}/*,
               markLine : {
                  data : [
                     {type : 'average', name : '平均值'}
                  ]
               }*/
            },{name:'4',type:'bar',data:reportDeleteList,markPoint : {data : [{type : 'max', name: '最大值'},{type : 'min', name: '最小值'}]}/*,
               markLine : {
                  data : [
                     {type : 'average', name : '平均值'}
                  ]
               }*/
            }]};if (option && typeof option === "object") {myChart.setOption(option, true);}console.log(myChart.getDataURL("png"));}
</script>

后台

/**
* importData:(导出数据). <br/>
*
* /foodBreak/statistical/importData
*
* @author wpengfei
* @param inv
* @return
* @since JDK 1.6
*/
@Post("/importData")
public String importData(Invocation inv) {

String data = inv.getRequest().getParameter("img");
String dataText = inv.getRequest().getParameter("dataText");

if (StringUtils.isNotBlank(dataText)) {
try {

//                String userName = System.getProperty("user.name");
//                logger.info("userName:" + userName);

String filePath = Constants.UPLOAD_BASE_FOLD;
File file = new File(filePath);
if (!file.exists()) {
file.mkdir();
}

String fileName = filePath + "\\" + System.currentTimeMillis() + ".png";

fbStatisticalInfoService.createImage(inv.getRequest(), inv.getResponse(), fileName, data);

fbStatisticalInfoService.createExcel(inv.getRequest(), inv.getResponse(), fileName, dataText);

} catch (Exception e) {
e.printStackTrace();
}

}

return "@";
}

import java.util.List;

import javax.imageio.ImageIO;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import org.apache.commons.collections.CollectionUtils;
import org.apache.commons.lang.StringUtils;
import org.apache.poi.hssf.usermodel.HSSFCell;
import org.apache.poi.hssf.usermodel.HSSFCellStyle;
import org.apache.poi.hssf.usermodel.HSSFClientAnchor;
import org.apache.poi.hssf.usermodel.HSSFPatriarch;
import org.apache.poi.hssf.usermodel.HSSFRow;
import org.apache.poi.hssf.usermodel.HSSFSheet;
import org.apache.poi.hssf.usermodel.HSSFWorkbook;
import org.apache.poi.hssf.util.HSSFColor;
import org.apache.poi.ss.usermodel.CellStyle;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

import sun.misc.BASE64Decoder;

/**
* createImage:(生成图片). <br/>
*
* @author wpengfei
* @param request
* @param response
* @param fileName
* @param data
* @throws ServletException
* @throws IOException
* @since JDK 1.6
*/
public void createImage(HttpServletRequest request, HttpServletResponse response,
String fileName, String data)
throws ServletException, IOException {
try {
String[] url = data.split(",");
String u = url[1];
// Base64解码
byte[] b = new BASE64Decoder().decodeBuffer(u);
// 生成图片
OutputStream out = new FileOutputStream(new File(fileName));
out.write(b);
out.flush();
out.close();            
} catch (Exception e) {
e.printStackTrace();
}
}

/**
* createExcel:(创建excel并导出). <br/>
*
* @author wpengfei
* @param request
* @param response
* @param fileName
* @param dataText
* @throws ServletException
* @throws IOException
* @since JDK 1.6
*/
public void createExcel(HttpServletRequest request, HttpServletResponse response,
String fileName,String dataText)
throws ServletException, IOException {

// 第一步，创建一个webbook，对应一个Excel文件
HSSFWorkbook wb = new HSSFWorkbook();
// 第二步，在webbook中添加一个sheet,对应Excel文件中的sheet
HSSFSheet sheet = wb.createSheet("echart");

// 3.创建单元格样式  
CellStyle cellStyle = wb.createCellStyle();  
// 设置这些样式  
cellStyle.setFillForegroundColor(HSSFColor.SKY_BLUE.index);  
cellStyle.setFillPattern(HSSFCellStyle.SOLID_FOREGROUND);  
cellStyle.setBorderBottom(HSSFCellStyle.BORDER_THIN);  
cellStyle.setBorderLeft(HSSFCellStyle.BORDER_THIN);  
cellStyle.setBorderRight(HSSFCellStyle.BORDER_THIN);  
cellStyle.setBorderTop(HSSFCellStyle.BORDER_THIN);  
cellStyle.setAlignment(HSSFCellStyle.ALIGN_CENTER);  
sheet.setDefaultColumnWidth(20);  

List<String> list = ITCastStringUtils.toStringList(dataText);

// 4.创建Excel工作表的行  
int i=0;
HSSFRow row = null;  
String[] strList = null;
for (String view : list) {
strList = view.split("[_]");
row = sheet.createRow(i);
row.createCell(0).setCellValue(strList[0]);  
row.createCell(1).setCellValue(strList[1]);  
row.createCell(2).setCellValue(strList[2]);  
row.createCell(3).setCellValue(strList[3]);  
row.createCell(4).setCellValue(strList[4]);  

i++;
}

/*// 设置sheet名称和单元格内容  
wb.setSheetName(0, "aa");  */

/*导入图片*/       
/*HSSFCell headerCell = row.createCell(0);    
headerCell.setCellType(HSSFCell.CELL_TYPE_BLANK);  
headerCell.setCellValue("echarts");*/

//        HSSFCell cells = row.createCell(0);
//        cells.setCellType(HSSFCell.CELL_TYPE_BLANK);

ByteArrayOutputStream outStream = new ByteArrayOutputStream(); // 将图片写入流中
BufferedImage bufferImg = ImageIO.read(new File(fileName));
ImageIO.write(bufferImg, "PNG", outStream); // 利用HSSFPatriarch将图片写入EXCEL

int length = list.size();

HSSFPatriarch patri = sheet.createDrawingPatriarch();
HSSFClientAnchor anchor = new HSSFClientAnchor(length + 200, length + 200, length + 200, length + 200,
(short) 1, length + 5, (short) 7, length + 40);

patri.createPicture(anchor, wb.addPicture(
outStream.toByteArray(), HSSFWorkbook.PICTURE_TYPE_PNG));

try {
OutputStream out = null;
response.setContentType("application/x-msdownload");
response.setHeader("Content-Disposition", "attachment; filename=" + URLEncoder.encode("echarts.xls", "UTF-8"));
out = response.getOutputStream();            
wb.write(out);
out.flush();
out.close();        
} catch (Exception e) {
e.printStackTrace();
}
}

关于HSSFClientAnchor(dx1,dy1,dx2,dy2,col1,row1,col2,row2)的参数，有必要在这里说明一下：
dx1：起始单元格的x偏移量，如例子中的255表示直线起始位置距A1单元格左侧的距离；
dy1：起始单元格的y偏移量，如例子中的125表示直线起始位置距A1单元格上侧的距离；
dx2：终止单元格的x偏移量，如例子中的1023表示直线起始位置距C3单元格左侧的距离；
dy2：终止单元格的y偏移量，如例子中的150表示直线起始位置距C3单元格上侧的距离；
col1：起始单元格列序号，从0开始计算；
row1：起始单元格行序号，从0开始计算，如例子中col1=0,row1=0就表示起始单元格为A1；
col2：终止单元格列序号，从0开始计算；
row2：终止单元格行序号，从0开始计算，如例子中col2=2,row2=2就表示起始单元格为C3；