java图片嵌套合成

常见的需要把背景图跟二维码合成或者头像等一些列合成，这里做个多图片或文字合成演示：

来张合成后的效果

这张图片由微信头像，个人二维码，个人微信昵称，其他背景图等合成一张照片

上工具代码

 

package com.sr.biofunet.web.controller.utils;

import javax.swing.text.Document;
import javax.swing.text.Element;
import javax.swing.text.View;
import javax.swing.text.ViewFactory;
import javax.swing.text.html.HTMLDocument;
import javax.swing.text.html.HTMLEditorKit;
import javax.swing.text.html.HTMLEditorKit.HTMLFactory;
import javax.swing.text.html.ImageView;

public class SynchronousHTMLEditorKit extends HTMLEditorKit
{
  public Document createDefaultDocument()
  {
    HTMLDocument doc = (HTMLDocument)super.createDefaultDocument();
    doc.setAsynchronousLoadPriority(-1);
    return doc;
  }

  public ViewFactory getViewFactory() {
    return new HTMLFactory() {
      public View create(Element elem) {
        View view = super.create(elem);
        if ((view instanceof ImageView)) {
          ((ImageView)view).setLoadsSynchronously(true);
        }
        return view;
      }
    };
  }
}

package com.sr.biofunet.web.controller.utils;

import java.awt.Rectangle;
import java.util.List;
import java.util.Map;

public class LinkInfo
{
  private Map<String, String> attributes;
  private List<Rectangle> bounds;

  public LinkInfo(Map<String, String> attributes, List<Rectangle> bounds)
  {
    this.attributes = attributes;
    this.bounds = bounds;
  }

  public Map<String, String> getAttributes() {
    return this.attributes;
  }

  public List<Rectangle> getBounds() {
    return this.bounds;
  }
}

package com.sr.biofunet.web.controller.utils;

import java.awt.Rectangle;
import java.util.ArrayList;
import java.util.Collections;
import java.util.Enumeration;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import javax.swing.JEditorPane;
import javax.swing.text.AttributeSet;
import javax.swing.text.BadLocationException;
import javax.swing.text.Document;
import javax.swing.text.Element;
import javax.swing.text.JTextComponent;
import javax.swing.text.SimpleAttributeSet;
import javax.swing.text.html.HTML;
import javax.swing.text.html.HTML.Attribute;
import javax.swing.text.html.HTML.Tag;

public class LinkHarvester
{
  private final JTextComponent textComponent;
  private final List<LinkInfo> links = new ArrayList();

  public LinkHarvester(JEditorPane textComponent) {
    this.textComponent = textComponent;
    harvestElement(textComponent.getDocument().getDefaultRootElement());
  }

  public List<LinkInfo> getLinks() {
    return this.links;
  }

  private void harvestElement(Element element) {
    if (element == null) {
      return;
    }

    AttributeSet attributes = element.getAttributes();
    Enumeration attributeNames = attributes.getAttributeNames();
    while (attributeNames.hasMoreElements()) {
      Object key = attributeNames.nextElement();
      if (Tag.A.equals(key)) {
        Map linkAttributes = harvestAttributes(element);
        List bounds = harvestBounds(element);
        if ((!linkAttributes.isEmpty()) && (!bounds.isEmpty())) {
          this.links.add(new LinkInfo(linkAttributes, bounds));
        }
      }
    }

    for (int i = 0; i < element.getElementCount(); i++) {
      Element child = element.getElement(i);
      harvestElement(child);
    }
  }

  private Map<String, String> harvestAttributes(Element element) {
    Object value = element.getAttributes().getAttribute(Tag.A);
    if ((value instanceof SimpleAttributeSet)) {
      SimpleAttributeSet attributeSet = (SimpleAttributeSet)value;
      Map result = new HashMap();
      addAttribute(attributeSet, result, Attribute.HREF);
      addAttribute(attributeSet, result, Attribute.TARGET);
      addAttribute(attributeSet, result, Attribute.TITLE);
      addAttribute(attributeSet, result, Attribute.CLASS);
      addAttribute(attributeSet, result, "tabindex");
      addAttribute(attributeSet, result, "dir");
      addAttribute(attributeSet, result, "lang");
      addAttribute(attributeSet, result, "accesskey");

      addAttribute(attributeSet, result, "onblur");
      addAttribute(attributeSet, result, "onclick");
      addAttribute(attributeSet, result, "ondblclick");
      addAttribute(attributeSet, result, "onfocus");
      addAttribute(attributeSet, result, "onmousedown");
      addAttribute(attributeSet, result, "onmousemove");
      addAttribute(attributeSet, result, "onmouseout");
      addAttribute(attributeSet, result, "onmouseover");
      addAttribute(attributeSet, result, "onmouseup");
      addAttribute(attributeSet, result, "onkeydown");
      addAttribute(attributeSet, result, "onkeypress");
      addAttribute(attributeSet, result, "onkeyup");
      return result;
    }

    return Collections.emptyMap();
  }

  private void addAttribute(SimpleAttributeSet attributeSet, Map<String, String> result, Object attribute) {
    String attName = attribute.toString();
    String attValue = (String)attributeSet.getAttribute(attribute);
    if ((attValue != null) && (!attValue.equals("")))
      result.put(attName, attValue);
  }

  private List<Rectangle> harvestBounds(Element element)
  {
    List boundsList = new ArrayList();
    try {
      int startOffset = element.getStartOffset();
      int endOffset = element.getEndOffset();

      Rectangle lastBounds = null;
      for (int i = startOffset; i <= endOffset; i++) {
        Rectangle bounds = this.textComponent.modelToView(i);

        if (bounds == null)
        {
          continue;
        }

        if (lastBounds == null) {
          lastBounds = bounds;
        }
        else if (bounds.getY() == lastBounds.getY()) {
          lastBounds = lastBounds.union(bounds);
        }
        else
        {
          if ((lastBounds.getWidth() > 1.0D) && (lastBounds.getHeight() > 1.0D)) {
            boundsList.add(lastBounds);
          }
          lastBounds = null;
        }
      }

      if ((lastBounds != null) && (lastBounds.getWidth() > 1.0D) && (lastBounds.getHeight() > 1.0D)) {
        boundsList.add(lastBounds);
      }
      return boundsList;
    } catch (BadLocationException e) {
    }
    throw new RuntimeException("Got BadLocationException");
  }
}

package com.sr.biofunet.web.controller.utils;

import java.awt.ComponentOrientation;
import java.awt.Dimension;
import java.awt.Graphics;
import java.awt.Rectangle;
import java.awt.image.BufferedImage;
import java.beans.PropertyChangeEvent;
import java.beans.PropertyChangeListener;
import java.io.File;
import java.io.FileWriter;
import java.io.IOException;
import java.net.URL;
import java.util.Iterator;
import java.util.List;
import java.util.Map.Entry;
import javax.imageio.ImageIO;
import javax.swing.JEditorPane;

public class HtmlImageGenerator {
    private JEditorPane editorPane = this.createJEditorPane();
    static final Dimension DEFAULT_SIZE = new Dimension(800, 800);

    public HtmlImageGenerator() {
    }

    public ComponentOrientation getOrientation() {
        return this.editorPane.getComponentOrientation();
    }

    public void setOrientation(ComponentOrientation orientation) {
        this.editorPane.setComponentOrientation(orientation);
    }

    public Dimension getSize() {
        return this.editorPane.getSize();
    }

    public void setSize(Dimension dimension) {
        this.editorPane.setSize(dimension);
    }

    public void loadUrl(URL url) {
        try {
            this.editorPane.setPage(url);
        } catch (IOException var3) {
            throw new RuntimeException(String.format("Exception while loading %s", new Object[]{url}), var3);
        }
    }

    public void loadUrl(String url) {
        try {
            this.editorPane.setPage(url);
        } catch (IOException var3) {
            throw new RuntimeException(String.format("Exception while loading %s", new Object[]{url}), var3);
        }
    }

    public void loadHtml(String html) {
        this.editorPane.setText(html);
        this.onDocumentLoad();
    }

    public String getLinksMapMarkup(String mapName) {
        StringBuilder markup = new StringBuilder();
        markup.append("<map name=\"").append(mapName).append("\">\n");
        Iterator i$ = this.getLinks().iterator();

        while(i$.hasNext()) {
            LinkInfo link = (LinkInfo)i$.next();
            List bounds = link.getBounds();
            Iterator i$1 = bounds.iterator();

            while(i$1.hasNext()) {
                Rectangle bound = (Rectangle)i$1.next();
                int x1 = (int)bound.getX();
                int y1 = (int)bound.getY();
                int x2 = (int)((double)x1 + bound.getWidth());
                int y2 = (int)((double)y1 + bound.getHeight());
                markup.append(String.format("<area coords=\"%s,%s,%s,%s\" shape=\"rect\"", new Object[]{Integer.valueOf(x1), Integer.valueOf(y1), Integer.valueOf(x2), Integer.valueOf(y2)}));
                Iterator i$2 = link.getAttributes().entrySet().iterator();

                while(i$2.hasNext()) {
                    Entry entry = (Entry)i$2.next();
                    String attName = (String)entry.getKey();
                    String value = (String)entry.getValue();
                    markup.append(" ").append(attName).append("=\"").append(value.replace("\"", "&quot;")).append("\"");
                }

                markup.append(">\n");
            }
        }

        markup.append("</map>\n");
        return markup.toString();
    }

    public List<LinkInfo> getLinks() {
        LinkHarvester harvester = new LinkHarvester(this.editorPane);
        return harvester.getLinks();
    }

    public void saveAsHtmlWithMap(String file, String imageUrl) {
        this.saveAsHtmlWithMap(new File(file), imageUrl);
    }

    public void saveAsHtmlWithMap(File file, String imageUrl) {
        FileWriter writer = null;

        try {
            writer = new FileWriter(file);
            writer.append("<!DOCTYPE html PUBLIC \"-//W3C//DTD XHTML 1.0 Strict//EN\" \"http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd\">\n");
            writer.append("<html>\n<head></head>\n");
            writer.append("<body style=\"margin: 0; padding: 0; text-align: center;\">\n");
            String e = this.getLinksMapMarkup("map");
            writer.write(e);
            writer.append("<img border=\"0\" usemap=\"#map\" src=\"");
            writer.append(imageUrl);
            writer.append("\"/>\n");
            writer.append("</body>\n</html>");
        } catch (IOException var12) {
            throw new RuntimeException(String.format("Exception while saving \'%s\' html file", new Object[]{file}), var12);
        } finally {
            if(writer != null) {
                try {
                    writer.close();
                } catch (IOException var11) {
                    ;
                }
            }

        }

    }

    public void saveAsImage(String file) {
        this.saveAsImage(new File(file));
    }

    public void saveAsImage(File file) {
        BufferedImage img = this.getBufferedImage();

        try {
            String e = FormatNameUtil.formatForFilename(file.getName());
            ImageIO.write(img, e, file);
        } catch (IOException var4) {
            throw new RuntimeException(String.format("Exception while saving \'%s\' image", new Object[]{file}), var4);
        }
    }

    protected void onDocumentLoad() {
    }

    public Dimension getDefaultSize() {
        return DEFAULT_SIZE;
    }

    public BufferedImage getBufferedImage() {
        Dimension prefSize = this.editorPane.getPreferredSize();
        BufferedImage img = new BufferedImage(prefSize.width, this.editorPane.getPreferredSize().height, 2);
        Graphics graphics = img.getGraphics();
        this.editorPane.setSize(prefSize);
        this.editorPane.paint(graphics);
        return img;
    }

    protected JEditorPane createJEditorPane() {
        JEditorPane editorPane = new JEditorPane();
        editorPane.setSize(this.getDefaultSize());
        editorPane.setEditable(false);
        SynchronousHTMLEditorKit kit = new SynchronousHTMLEditorKit();
        editorPane.setEditorKitForContentType("text/html", kit);
        editorPane.setContentType("text/html");
        editorPane.addPropertyChangeListener(new PropertyChangeListener() {
            public void propertyChange(PropertyChangeEvent evt) {
                if(evt.getPropertyName().equals("page")) {
                    HtmlImageGenerator.this.onDocumentLoad();
                }

            }
        });
        return editorPane;
    }
}

package com.sr.biofunet.web.controller.utils;

import java.util.HashMap;
import java.util.Map;

public class FormatNameUtil
{
  public static Map<String, String> types = new HashMap();
  private static final String DEFAULT_FORMAT = "png";

  public static String formatForExtension(String extension)
  {
    String type = (String)types.get(extension);
    if (type == null) {
      return "png";
    }
    return type;
  }

  public static String formatForFilename(String fileName) {
    int dotIndex = fileName.lastIndexOf(46);
    if (dotIndex < 0) {
      return "png";
    }
    String ext = fileName.substring(dotIndex + 1);
    return formatForExtension(ext);
  }

  static
  {
    types.put("gif", "gif");
    types.put("jpg", "jpg");
    types.put("jpeg", "jpg");
    types.put("png", "png");
  }
}

下面来是重点，调用工具合成

public String generateAgentQrCode(String openID, String qrcodeUrlS,HttpServletRequest request,String headUrl,String nickName) {
        String agentQrCode = "";
        HtmlImageGenerator imageGenerator = new HtmlImageGenerator();
        String htmlstr = "    <div style=\"height:648px;width:100%;padding:30px 10px 0 10px;\">\n" +
                "        <table width=\"100%\" style=\"vertical-align:top;\">\n" +
                "            <tr>\n" +
                "                <td colspan=\"3\">\n" +
                "                    <table style=\"background: #f2f2f2;width: 100%;border: 10px solid #e4c5b8;padding: 30px 0;margin-bottom:6px\">\n" +
                "                        <tr >\n" +
                "                            <td rowspan=\"2\" style=\"padding-left:8%;width:260px;height:260px;vertical-align: middle;border-radius: 50%;overflow: hidden;text-align: center;background-size: 100%\" >\n" +
                "                                <img src=\"" +headUrl +"\" width=\"220\" height=\"220\" style=\"border-radius: 50%\" >\n" +
                "                            </td>\n" +
                "                            <td style=\"padding-left: 8%;font-size:30px;\">I'm "+nickName+"</td>\n" +
                "                        </tr>\n" +
                "                        <tr>\n" +
                "                            <td style=\"text-align:left;padding-left: 8%\">\n" +
                "                                <img src=\"http://localhost:8888/biofunetUpload//image/20170725/7062330ebcf24a9383605018b326e158.png\"  >\n" +
                "                            </td>\n" +
                "                        </tr>\n" +
                "                    </table>\n" +
                "                </td>\n" +
                "            </tr>\n" +
                "\n" +
                "\n" +
                "            <tr >\n" +
                "                <td style=\"text-align:left;\" colspan=\"3\">\n" +
                "                    <img src=\"http://localhost:8888/biofunetUpload//image/20170725/1bff72172396475da1076ec1adf9ddf0.png\"  width=\"100%\">\n" +
                "                </td>\n" +
                "            </tr>\n" +
                "            <tr>\n" +
                "                <td ></td>\n" +
                "                <td style=\"text-align:left;padding:10px 0 0 20px\">\n" +
                "                    <img src=\"http://localhost:8888/biofunetUpload//image/20170725/7f2f0c74c06e4274800b0ff4c3dbe033.png\" >\n" +
                "                </td>\n" +
                "                <td  style=\"text-align:right;padding:10px 0 0 20px\">\n" +
                "                    <img src=\"" + qrcodeUrlS+ "\"" +
                "                </td>\n" +
                "            </tr>\n" +
                "        </table>\n" +
                "    </div>";
        imageGenerator.loadHtml(htmlstr);
        imageGenerator.getBufferedImage();
        String path = request.getRealPath("/");
        File fileParent = new File(path + "uploads" + File.separator);
        if (!fileParent.exists()) {
            fileParent.mkdir();
        }
        /** 保存图片 **/
        String filePath = path + "uploads"+File.separator + openID + "_QrCode.png";
        imageGenerator.saveAsImage(filePath);  //到此图片已经合成了
        /** 上传图片服务器 **/
        String resultString = HttpConnectionUtil.uploadFile(FINALSTR.SERVERURL + "newUpload", openID + "_QrCode.png", filePath);
        System.out.print("resultString================" + resultString);
        if (StringUtils.isNotBlank(resultString)) {
            JSONObject jsonObject = JSONObject.parseObject(resultString);
            if (jsonObject != null && jsonObject.containsKey("map")) {
                JSONObject mapJSON = JSONObject.parseObject(jsonObject.getString("map"));
                agentQrCode = mapJSON.getString("uri");
            }
        }

        return FINALSTR.SERVERURL + agentQrCode;
    }

上面的只是个案例，

下面提供一个下载指定ip下的文件的方法

package com.sr.biofunet.web.controller.utils;

import javax.net.ssl.HostnameVerifier;
import javax.net.ssl.HttpsURLConnection;
import javax.net.ssl.SSLSession;
import java.io.File;
import java.io.FileOutputStream;
import java.io.InputStream;
import java.io.OutputStream;
import java.net.URL;
import java.net.URLConnection;

/**
 * Created by Administrator on 2017/7/18 0018.
 */
public class DownLoadQrCode {


    /**
     * @param args
     * @throws Exception
     */
    public static void main(String[] args) throws Exception {
        // TODO Auto-generated method stub
      //  https://mp.weixin.qq.com/cgi-bin/showqrcode?ticket=gQFH8DwAAAAAAAAAAS5odHRwOi8vd2VpeGluLnFxLmNvbS9xLzAyVm1rZ0VkSmVh
        download("https://mp.weixin.qqS9AAAAA", "111.png","c:\\image\\");
    }



    public static void download(String urlString, String filename,String savePath) throws Exception {
        InputStream is = null;
        OutputStream os = null;
        try {
            HostnameVerifier hv = new HostnameVerifier() {
                public boolean verify(String urlHostName, SSLSession session) {
                    System.out.println("Warning: URL Host: " + urlHostName + " vs. "
                            + session.getPeerHost());
                    return true;
                }
            };

            // 构造URL
            URL url = new URL(urlString);

            trustAllHttpsCertificates();
            HttpsURLConnection.setDefaultHostnameVerifier(hv);

            // 打开连接
            URLConnection con = url.openConnection();
            //设置请求超时为5s
            con.setConnectTimeout(5 * 1000);
            // 输入流
            is = con.getInputStream();

            // 1K的数据缓冲
            byte[] bs = new byte[1024];
            // 读取到的数据长度
            int len;
            // 输出的文件流
            File sf = new File(savePath);
            if (!sf.exists()) {
                sf.mkdirs();
            }
            os = new FileOutputStream(sf.getPath() + File.separator + filename);
            // 开始读取
            while ((len = is.read(bs)) != -1) {
                os.write(bs, 0, len);
            }

        }catch (Exception e){
            e.printStackTrace();
        }finally {
            if(is!=null){
                is.close();
            }
            if(os!=null){
                os.flush();
                // 完毕，关闭所有链接
                os.close();
            }
        }
    }

    private static void trustAllHttpsCertificates() throws Exception {
        javax.net.ssl.TrustManager[] trustAllCerts = new javax.net.ssl.TrustManager[1];
        javax.net.ssl.TrustManager tm = new miTM();
        trustAllCerts[0] = tm;
        javax.net.ssl.SSLContext sc = javax.net.ssl.SSLContext
                .getInstance("SSL");
        sc.init(null, trustAllCerts, null);
        javax.net.ssl.HttpsURLConnection.setDefaultSSLSocketFactory(sc
                .getSocketFactory());
    }

    static class miTM implements javax.net.ssl.TrustManager,
            javax.net.ssl.X509TrustManager {
        public java.security.cert.X509Certificate[] getAcceptedIssuers() {
            return null;
        }

        public boolean isServerTrusted(
                java.security.cert.X509Certificate[] certs) {
            return true;
        }

        public boolean isClientTrusted(
                java.security.cert.X509Certificate[] certs) {
            return true;
        }

        public void checkServerTrusted(
                java.security.cert.X509Certificate[] certs, String authType)
                throws java.security.cert.CertificateException {
            return;
        }

        public void checkClientTrusted(
                java.security.cert.X509Certificate[] certs, String authType)
                throws java.security.cert.CertificateException {
            return;
        }
    }
}

本节完