wkhtmltopdf

下载

下载地址：https://wkhtmltopdf.org/downloads.html根据系统选择相应的版本
这里以Linux为例：
版本：wkhtmltox-0.12.6-1.centos7.x86_64.rpm

安装

上传rpm文件到安装目录 /usr/local

cd /usr/local

安装 rpm

rpm -ivh wkhtmltox-0.12.6-1.centos7.x86_64.rpm

查看安装路径

whereis wkhtmltopdf

字体安装（Linux）
将 simsum.ttc 字体上传至 /usr/share/fonts/chinese/TrueType
注：没有该路径就 mkdir 创建，字体也可以去windows系统 C:\Windows\Fonts 目录下找

卸载

rpm -qa |grep wkhtmlto
rpm -e wkhtmltox-0.12.6-1.centos7.x86_64

wkhtmltopdf自动生成文档

方式一：通过wkhtmltopdf -H查看自动生成文档

wkhtmltopdf -H

方式二：访问官方查看自动生成文档
https://wkhtmltopdf.org/usage/wkhtmltopdf.txt

JAVA集成wkhtmltopdf

HtmlToPdf拦截器

/**
 * HtmlToPdf拦截器
 */
public class HtmlToPdfInterceptor extends Thread {

    private InputStream inputStream;

    public HtmlToPdfInterceptor(InputStream is){
        this.inputStream = inputStream;
    }

    public void run(){
        InputStreamReader inputStreamReader = null;
        BufferedReader bufferedReader = null;
        try{
            inputStreamReader = new InputStreamReader(inputStream, "utf-8");
            bufferedReader = new BufferedReader(inputStreamReader);
            String line = null;
            while ((line = bufferedReader.readLine()) != null) {
                //打印内容
                System.out.println(line.toString());
            }
        }catch (IOException e){
            e.printStackTrace();
        }finally {
            try{
                if(null != inputStreamReader){
                    inputStreamReader.close();
                }
                if(null != bufferedReader){
                    bufferedReader.close();
                }
            }catch (IOException e){
                e.printStackTrace();
            }
        }
    }

}

wkhtmlltopdf操作类

public class HtmlToPdfOperator {

    /**
     * html转pdf
     * @param fromPath html路径，可以是磁盘s的路径，也可以是网络路径
     * @param toPath pdf保存路径
     * @return 转换成功返回true
     */
    public void convert(String fromPath, String toPath){
        File file = new File(toPath);
        File parent = file.getParentFile();
        //如果pdf保存路径不存在，则创建路径
        if(!parent.exists()){
            parent.mkdirs();
        }
        StringBuilder cmd = new StringBuilder();
        //加载wkhtmltopdf
        cmd.append(getWkhtmltopdfPath());
        //将纸张大小设置为自定义宽高的A4
        cmd.append(" --print-media-type");
        cmd.append(" --page-size A4");
        cmd.append(" --page-width 270mm");
        cmd.append(" --page-height 382mm");

        cmd.append(" ");
        cmd.append(fromPath);
        cmd.append(" ");
        cmd.append(toPath);

        try{
            Process proc = Runtime.getRuntime().exec(cmd.toString());
            HtmlToPdfInterceptor error = new HtmlToPdfInterceptor(proc.getErrorStream());
            HtmlToPdfInterceptor output = new HtmlToPdfInterceptor(proc.getInputStream());
            error.start();
            output.start();
            proc.waitFor();
        }catch(Exception e){
            e.printStackTrace();
        }

    }

    /**
     * 获取wkhtmltopdf路径
     * @return
     */
    private String getWkhtmltopdfPath() {
        String wkhtmltopdfPath = "D:\\applocation\\wkhtmltopdf\\bin\\wkhtmltopdf.exe";
        return wkhtmltopdfPath;
    }

}