linux的wkhtml 安装：
linux安装wkhtmltopdf（清晰明了）_sout-lanys的博客-CSDN博客
win的wkhtml安装：
直接下载：wkhtmltopdf
html 必须加UTF-8编码
<head>
<meta charset="utf-8">
</head>
java代码：
import lombok.extern.log4j.Log4j2;import java.io.BufferedReader;
import java.io.File;
import java.io.InputStreamReader;
import java.nio.charset.StandardCharsets;/*** <p>* html转换工具* </p>** @author Garcia* @since 2023-09-12*/@Log4j2
public class HtmlUtils {private final static String WIN_PDF_TOOL = "D:\\Program Files\\wkhtmltopdf\\bin\\wkhtmltopdf.exe";private final static String WIN_IMAGE_TOOL = "D:\\Program Files\\wkhtmltopdf\\bin\\wkhtmltoimage.exe";private final static String LINUX_PDF_TOOL = "/usr/local/bin/wkhtmltopdf";private final static String LINUX_IMAGE_TOOL = "/usr/local/bin/wkhtmltoimage";/*** html转PDF** @param htmlPath html路径* @param pdfPath pdf路径*/public static void htmlToPdf(String htmlPath, String pdfPath) {File file = new File(pdfPath);File parent = file.getParentFile();//如果pdf保存路径不存在，则创建路径if (!parent.exists()) {parent.mkdirs();}String tool;StringBuilder cmd = new StringBuilder();if (System.getProperty("os.name").contains("Windows")) {//非windows 系统tool = WIN_PDF_TOOL;}else {tool = LINUX_PDF_TOOL;}cmd.append(tool);cmd.append(" ");cmd.append("-B 0 -L 0 -R 0 -T 0 ");//开启本地文件访问cmd.append("--enable-local-file-access ");//cmd.append(" --header-line");//页眉下面的线//cmd.append(" --header-center 这里是页眉这里是页眉这里是页眉这里是页眉 ");//页眉中间内容//cmd.append(" --margin-top 3cm ");//设置页面上边距 (default 10mm)//cmd.append(" --header-html file:///" + WebUtil.getServletContext().getRealPath("") + FileUtil.convertSystemFilePath("\\style\\pdf\\head.html"));// (添加一个HTML页眉,后面是网址)//cmd.append(" --header-spacing 5 ");// (设置页眉和内容的距离,默认0)//cmd.append(" --footer-center (设置在中心位置的页脚内容)");//设置在中心位置的页脚内容//cmd.append(" --footer-html file:///" + WebUtil.getServletContext().getRealPath("") + FileUtil.convertSystemFilePath("\\style\\pdf\\foter.html"));// (添加一个HTML页脚,后面是网址)//cmd.append(" --footer-line");//* 显示一条线在页脚内容上)//cmd.append(" --footer-spacing 5 ");// (设置页脚和内容的距离)cmd.append(htmlPath);cmd.append(" ");cmd.append(pdfPath);try {Process proc = Runtime.getRuntime().exec(cmd.toString());InputStreamReader isr = new InputStreamReader(proc.getInputStream(), StandardCharsets.UTF_8);BufferedReader br = new BufferedReader(isr);String line = null;while ((line = br.readLine()) != null) {System.out.println("html转pdf进度和信息："+ line);}proc.waitFor();} catch (Exception e) {log.error("HTML转PDF失败",e);}}public static void htmlToImg(String srcPath, String destPath) {try {File file = new File(destPath);File parent = file.getParentFile();//如果pdf保存路径不存在，则创建路径if (!parent.exists()) {parent.mkdirs();}String tool;StringBuilder cmd = new StringBuilder();if (System.getProperty("os.name").contains("Windows")) {//非windows 系统tool = WIN_IMAGE_TOOL;}else {tool = LINUX_IMAGE_TOOL;}cmd.append(tool);cmd.append(" ");cmd.append(srcPath);cmd.append(" ");cmd.append(destPath);Process proc = Runtime.getRuntime().exec(cmd.toString());InputStreamReader isr = new InputStreamReader(proc.getInputStream(), StandardCharsets.UTF_8);BufferedReader br = new BufferedReader(isr);String line = null;while ((line = br.readLine()) != null) {System.out.println("html转jpg进度和信息："+ line);}proc.waitFor();} catch (Exception e) {log.error("HTML转IMAGE失败",e);}}
}
)
