1：获取数据放map之后,调用WaterImage
if (recordMap != null) { WaterImage waterImage = new WaterImage(); ByteArrayOutputStream out = new ByteArrayOutputStream(); try { ImageIO.write(waterImage.createImage(recordMap), "jpg", out); } catch (IOException e) { e.printStackTrace(); } return out.toByteArray(); }2：createImage方法
package com.rjcloud.util; import com.rjcloud.api.entity.*; import gui.ava.html.image.generator.HtmlImageGenerator; import org.apache.commons.collections.map.HashedMap; import javax.imageio.ImageIO; import java.awt.*; import java.awt.font.FontRenderContext; import java.awt.geom.Rectangle2D; import java.awt.image.BufferedImage; import java.io.File; import java.io.IOException; import java.text.SimpleDateFormat; import java.util.Map; public class WaterImage { private int imgWidth = 200; private int imgHeight = 20; private int size = 14; public void setImgHeight(int imgHeight) { this.imgHeight = imgHeight; } public int getImgWidth() { return this.imgWidth; } public void setImgWidth(int imgWidth) { this.imgWidth = imgWidth; } public int getSize() { return size; } public void setSize(int size) { this.size = size; } String getShowStr(String str){ return str==null?"":str; } public BufferedImage createImage(Object obj) { HtmlImageGenerator imageGenerator = new HtmlImageGenerator(); StringBuffer stringBuffer=new StringBuffer(); //把值放在html里面 Map<String, Object> map= (Map<String, Object>) obj; // stringBuffer.append("<br /><div style='text-align: center ;font-size:18px'><b>"+entity.getCf_cfmc()+"</b></div><br />"); SimpleDateFormat sdf=new SimpleDateFormat("yyyy-MM-dd"); stringBuffer.append( " <div id='frame_article_l_warp' class='article_dt' style='display: block;width: 100%;" + "background-image: url(../images/article_06.gif);background-repeat: repeat-y;" + "background-position: 0px 0px;height: auto;!important;height: 100%;overflow: hidden;'>" + "<div class='article_2_s' id='frame_list_s' style='background-image: url(../images/article_03.gif);background-repeat: no-repeat;" + "background-position: 0px top;display: block;width: 100%;height: 100%;height: auto;!important;overflow: hidden;'>" + "<div class='article_2_x' id='frame_list_x' style='background-image: url(../images/article_19.gif);background-repeat: no-repeat;" + "background-position: 0px bottom;display: block;width: 100%;" + "height: 100%;height: auto;!important;overflow: hidden;'>" + "<div class='article_con_bg' id='mod_article_con' >" + " <div id='data_article_title'>" + " <div class='title' id='cms_article_title' style='line-height:100px;width:1000px;" + "border-width:0 0 1px 0;text-align:center;padding-top: 20px;word-wrap: break-word;word-break:break-all;" + "padding-right: 20px;padding-bottom: 0;padding-left: 20px;font-size:33px;'>"+""+"</div>" + " </div>" + " <div id='data_article_content'>" + " <div class='con' id='cms_article_content' style='display: block;font-size:14px;line-height: 1.7;text-align: left;/*(火狐)*/" + "text-justify:inter-ideograph;/*(IE)*/font-size:16px;'>" + " <table width='1000px' border='0' cellspacing='0' cellpadding='0' class='x_x' style='margin-top: 15px;margin-bottom: 15px;border-collapse: collapse;'>" ); int i=1; for(Object key2 : map.keySet()){ if(i%2!=0&&i!=map.keySet().size()) { stringBuffer.append("<tr><td align='center' class='d_sk' style='background-color: #D9F0FF;color: #006699;border: 1px dashed #999;" + "padding: 5px;'><font style='background-color: #D9F0FF;display: block;'>" + key2 + "</font></td>" + "<td style='color: #006699;border: 1px dashed #999;" + "padding: 5px;'>" + map.get(key2) + "</td>"); }else if(i%2!=0&&i==map.keySet().size()){ stringBuffer.append("<tr><td align='center' class='d_sk' style='background-color: #D9F0FF;color: #006699;border: 1px dashed #999;" + "padding: 5px;'><font style='background-color: #D9F0FF;display: block;'>" + key2 + "</font></td>" + "<td style='color: #006699;border: 1px dashed #999;" + "padding: 5px;'>" + map.get(key2) + "</td></tr>"); }else{ stringBuffer.append("<td align='center' class='d_sk' style='background-color: #D9F0FF;color: #006699;border: 1px dashed #999;" + "padding: 5px;'><font style='background-color: #D9F0FF;display: block;'>" + key2 + "</font></td>" + "<td style='color: #006699;border: 1px dashed #999;" + "padding: 5px;'>" + map.get(key2) + "</td></tr>"); } i++; } stringBuffer.append(" </table>" + " </div>" + " </div>" + "</div>" + "</div>" + "</div>" + " </div>" + "</div>"); } // stringBuffer.append("</body>"); // stringBuffer.append("</html>"); imageGenerator.loadHtml(stringBuffer.toString()); return imageGenerator.getBufferedImage(); } public static void main(String[] args) { HtmlImageGenerator imageGenerator = new HtmlImageGenerator(); imageGenerator.loadHtml("<b>Hello World!</b> Please goto <a title=\"Goto Google\" href=\"http://www.google.com\">Google</a>."); imageGenerator.saveAsImage("hello-world.png"); imageGenerator.saveAsHtmlWithMap("hello-world.html", "hello-world.png"); // WaterImage create = new WaterImage(); // System.out.println(create.create("*万岁*万岁*万岁*万岁！", "c:/", 500, 38)); } }
3：把返回的byte处理
response.setCharacterEncoding("UTF-8");
response.setContentType("image/gif");
try {
OutputStream out = response.getOutputStream();
byte[] bytes = cmsService.getCreditImg(id,tableid,"","");
ByteArrayInputStream in = new ByteArrayInputStream(bytes);
BufferedImage image = ImageIO.read(in);
int h = image.getHeight();
int w=image.getWidth();
BufferedImage inputbig = new BufferedImage(w, h,BufferedImage.TYPE_INT_BGR);
inputbig.getGraphics().drawImage(image, 0, 0, w, h, null); //画图 ByteArrayOutputStream baos = new ByteArrayOutputStream();
ImageOutputStream imageOutputStream = ImageIO.createImageOutputStream(baos);
ImageIO.write(inputbig, "jpg", imageOutputStream);
out.write(baos.toByteArray());
out.flush();
} catch (Exception e) {
e.printStackTrace();
}