Merge branch 'dev_lxw' of http://whyclj@118.89.139.230:10101/r/~whyclxw/sen...

whyclj

2019-06-29 82c1e7ced425f43781b0cd01290fad298f51e623

 sensor/src/com/fgkj/servlets/EchartPictureDowloadServlet.java

@@ -1,6 +1,9 @@
package com.fgkj.servlets;



import java.awt.image.BufferedImage;

import java.io.ByteArrayInputStream;

import java.io.IOException;

import java.io.InputStream;

import java.io.OutputStream;

import java.io.UnsupportedEncodingException;

import java.math.BigDecimal;

@@ -9,6 +12,7 @@
import java.util.Date;

import java.util.List;



import javax.imageio.ImageIO;

import javax.servlet.ServletException;

import javax.servlet.http.HttpServlet;

import javax.servlet.http.HttpServletRequest;

@@ -34,6 +38,11 @@
   protected void service(HttpServletRequest req, HttpServletResponse resp)

         throws ServletException, IOException {

      String pageName = req.getParameter("pageName");

      String eName = req.getParameter("excelName");

      if(eName != null && eName.length()>0){

         excelName = eName;

      }

		
      if (ServletUtils.isNotNull(pageName)) {

         if ("charge-test".equalsIgnoreCase(pageName)) {

            chargeExcelExprot(req, resp);            //导出单个图表            

@@ -91,7 +100,7 @@
         HttpServletResponse resp, String[][] tabData) {

      HSSFSheet sheet1 = wb.createSheet("表格数据");

      int rownum = 0;

      for(int i=0;i<tabData[0].length;i++){

      for(int i=0;i<tabData.length;i++){

         sheet1.createRow(rownum);

         for(int j=0;j<tabData[i].length;j++){

            sheet1.getRow(rownum).createCell(j+1).setCellValue(tabData[i][j]);

@@ -104,12 +113,28 @@
   private void ExprotReportPicData(HSSFWorkbook wb, HttpServletRequest req,

         HttpServletResponse resp,String[] picName,String[] picSource) {

      HSSFSheet sheet1 = wb.createSheet("图片数据");

		
      double[] picPX = new double[picSource.length];

      bytes = new ArrayList<byte[]>();

      //将图片数据转换成字节数组

      BASE64Decoder base64 = new BASE64Decoder();

      //Base64解码  
      byte[] b;

      BufferedImage src = null;

      for(int i = 0 ;i<picSource.length;i++ ){

         try {

            bytes.add(new BASE64Decoder().decodeBuffer(picSource[i].split(",")[1]));

            bytes.add(base64.decodeBuffer(picSource[i].split(",")[1]));

            b = base64.decodeBuffer(picSource[i].split(",")[1]);

            for (int k = 0; k < b.length; ++k) {  
               if (b[k] < 0) {// 调整异常数据  
                  b[k] += 256;  
               }  
            }  
            InputStream buffin = new ByteArrayInputStream(b);

            src = ImageIO.read(buffin);

            int widthYuan = src.getWidth(); // 得到源图宽

              int heightYuan = src.getHeight(); // 得到源图高

            //System.out.println("width:"+widthYuan+"\theight:"+heightYuan+"\t单元格宽:"+swidth+"\t单元格高"+sheight);

            picPX[i] = (double)widthYuan/(heightYuan*4);

         } catch (IOException e) {

            e.printStackTrace();

         }

@@ -122,8 +147,10 @@
            sheet1.createRow(rownum);

            sheet1.getRow(rownum).createCell(0).setCellValue(i>=picName.length?"":picName[i]);

            rownum++;

            HSSFClientAnchor anchor = new HSSFClientAnchor(0, 0, 512, 255,(short) 0, rownum, (short) 10, 25 * (i + 1));

            //anchor.setAnchorType(3);

				
						
            HSSFClientAnchor anchor = new HSSFClientAnchor(0, 0, 512, 255,(short) 0, rownum, (short) Math.ceil(25*picPX[i]), 25 + rownum-1);

            anchor.setAnchorType(3);

            patriarch.createPicture(anchor,wb.addPicture(bytes.get(i),HSSFWorkbook.PICTURE_TYPE_PNG));

            rownum+=26;

         }

@@ -570,4 +597,5 @@
   public static double formartDouble(double b , int places){

      return new   BigDecimal(b).setScale(places,   BigDecimal.ROUND_HALF_UP).doubleValue();  

   }

	
}