Pay due to work in the industry, the most recent docking some third-party payment sometimes need our side to provide the user information and transaction information, and in the form of pictures sent to them, because this is daemon automatically processing, and then sent directly to the third party payment companies, thus find out information about the user needs the background, then generate images, Call the interface provided by the third party and send the picture link to them in the form of attachment. When the user initiates the dispute operation, the automatic processing mechanism of our background will be triggered.

Java background image generation

1. Dependent JARS (Maven dependencies)

< the dependency > < groupId > com. Making. Xuwei - k < / groupId > < artifactId > html2image < / artifactId > < version > 0.1.0 from < / version > </dependency>Copy the code

Code 2.

package com.generatePic; import gui.ava.html.image.generator.HtmlImageGenerator; public class TestGeneratePic { public static void main(String[] args) { generatePic(); } public static void generatePic() { HtmlImageGenerator htmlImageGenerator = new HtmlImageGenerator(); // Format is an element in HTML, Such as table String format = "< table > \ n" + "< tbody > \ n" + "< tr > \ n" + "\ t < img src="https://static.msport.com/public/up/pocket/operator/msportlogo.png" />\n" + " </tr>\n" + " </tbody>\n" + "</table>\n" + "\n" + "\n" + "<table border =1>\n" + " <tbody>\n" + " <tr>\n" + " <td>User Account(user account number)</td>\n" + " <td>%s</td>\n" + " </tr>\n" + " <tr>\n" + " <td>user's email</td>\n" + " <td>%s</td>\n" + " </tr>\n"  + "\t <tr>\n" + " <td>user's name</td>\n" + " <td>%s</td>\n" + " </tr>\n" + " </tbody>\n" + "</table>\n" + "</br>\n" + "\n" + "<table>\n" + " <tbody>\n" + " <tr>\n" + " <font size = "4">\n" + " <b>PAYMENT INFOMATION</b> \n" + " </font>\n" + " </tr>\n" + " </tbody>\n" + "</table>\n" + "\n" + "<table border =1>\n" + " <tbody>\n" + " <tr>\n" + " <td>Transaction Reference</td>\n" + " <td>%s</td>\n" + " </tr>\n" + " <tr>\n" + " <td>Transaction Amount</td>\n" + " <td>%s</td>\n" + " </tr>\n" + "\t<tr>\n" + " <td>Currency</td>\n" + " <td>%s</td>\n" + " </tr>\n" + "\t<tr>\n" + " <td>Transaction Status</td>\n" + " <td>%s</td>\n" + " </tr>\n" + "\t<tr>\n" + " <td>Transaction Date</td>\n" + " <td>%s</td>\n" + " </tr>\n" + "\t<tr>\n" + " <td>Payment Type</td>\n" + " <td>%s</td>\n" + " </tr>\n" + "\t<tr>\n" + " <td>Card Number</td>\n" + " <td>%s</td>\n" + " </tr>\n" + "\t<tr>\n" + " <td>Service Details</td>\n" + " <td>%s</td>\n" + " </tr>\n" + " </tbody> \n" + "</table>\n" + "<br/>\n" + "\n" + "<table>\n" + " <tbody>\n" + " <tr>\n" + " <font size = "4">\n" + " <b>SERVICE HISTORY</b> \n" + " </font>\n" + " </tr>\n" + " </tbody>\n" + "</table>\n" + "\n" + "<table border =1>\n" + "<thead>\n" + " <tr>\n" + " <th>DATE</th>\n" + " <th>DESCRIPTION</th>\n" + " <th>AMOUNT</th>\n" + " <th>BALANCE</th>\n" + " </tr>\n" + " </thead>\n" + " \n" + " <tbody>\n" + " <tr>\n" + " <td>%s</td>\n" + " <td>%s</td>\n" + " <td>%s</td>\n" + " <td>%s</td>\n" + " </tr>\n" + " <tr>\n" + " <td>%s</td>\n" + " <td>%s</td>\n" + " <td>%s</td>\n" + " <td>%s</td>\n" + " </tr>\n" + " </tbody>\n" + "</table>\n" + "\n" + "\n"; String finalHtml = "<html></body>" + format + "</body></html>"; htmlImageGenerator.loadHtml(finalHtml); // Image name String fileName = "1" + ".png"; htmlImageGenerator.saveAsImage(fileName); }}Copy the code

3. Generated images

The generated image path is in the project path by default:

4. Practical application suggestions

The string.format () function concatenates actual data, such as %s in 3, and generates the desired data. If your front-end skills are good, you can draw more elegant images in the background.