对 wkhtmltopdf 的调用功能进行包装，方便简化使用

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Java WkHtmlToPdf Wrapper

A Java based wrapper for the wkhtmltopdf command line tool. As the name implies, it uses WebKit to convert HTML documents to PDFs.

Requirements

wkhtmltopdf must be installed and working on your system.

Wrapper project dependency

Make sure you have Java Wrapper dependency added to your project.

If you are using Gradle/Maven, see example below:

Gradle

In your build.gradle:

	dependencies {
		compile 'com.github.jhonnymertz:java-wkhtmltopdf-wrapper:1.1.8-RELEASE'
	}

Maven

In your pom.xml:

	<dependency>
    <groupId>com.github.jhonnymertz</groupId>
    <artifactId>java-wkhtmltopdf-wrapper</artifactId>
    <version>1.1.8-RELEASE</version>
  </dependency>

Usage

Pdf pdf = new Pdf();

pdf.addPageFromString("<html><head><meta charset=\"utf-8\"></head><h1>Müller</h1></html>");
pdf.addPageFromUrl("http://www.google.com");

// Add a Table of Contents
pdf.addToc();

// The `wkhtmltopdf` shell command accepts different types of options such as global, page, headers and footers, and toc. Please see `wkhtmltopdf -H` for a full explanation.
// All options are passed as array, for example:
pdf.addParam(new Param("--no-footer-line"), new Param("--header-html", "file:///header.html"));
pdf.addParam(new Param("--enable-javascript"));

// Add styling for Table of Contents
pdf.addTocParam(new Param("--xsl-style-sheet", "my_toc.xsl"));

// Save the PDF
pdf.saveAs("output.pdf");

Xvfb Support

XvfbConfig xc = new XvfbConfig();
xc.addParams(new Param("--auto-servernum"), new Param("--server-num=1"));

WrapperConfig wc = new WrapperConfig();
wc.setXvfbConfig(xc);

Pdf pdf = new Pdf(wc);
pdf.addPageFromUrl("http://www.google.com");

pdf.saveAs("output.pdf");

wkhtmltopdf exit codes

wkhtmltopdf may return non-zero exit codes to denote warnings, you can now set the Pdf object to allow this:


Pdf pdf = new Pdf(wc);
pdf.addPageFromUrl("http://www.google.com");

pdf.setAllowMissingAssets();
// or:  
pdf.setSuccessValues(Arrays.asList(0, 1));

pdf.saveAs("output.pdf");

License

This project is available under MIT Licence.

README.md