“Khi sử dụng iText PDF trong môi trường nguồn đóng, bạn sẽ cần mua giấy phép thương mại iText PDF. ”

Môi trường, Công cụ và Thư viện được sử dụng trong bài đăng này

• Maven (công cụ xây dựng)
• iText 7. 1. 9
• pdfHTML iText Phần bổ trợ PDF 2. 1. 6

phụ thuộc

• Chúng tôi cần thêm thư viện lõi iText và tiện ích bổ sung pdfHTML vào các phụ thuộc dự án của chúng tôi

quả bông. xml

    
    
        com.itextpdf
        itext7-core
        7.1.9
        pom
    

    
    
	    com.itextpdf
	    html2pdf
	    2.1.6
	

Lớp package com.hmkcode; import java.io.FileNotFoundException; import java.io.FileOutputStream; import java.io.IOException; import com.itextpdf.html2pdf.HtmlConverter; public class App { public static final String HTML = "

Hello

This was created using iText

• Lớp

  package com.hmkcode;
  
  import java.io.FileNotFoundException;
  import java.io.FileOutputStream;
  import java.io.IOException;
  
  import com.itextpdf.html2pdf.HtmlConverter;
  
  public class App 
  {
  	public static final String HTML = "
  Hello
  "
  			+ "
  This was created using iText
  "
  			+ "hmkcode.com";
  	
  	
      public static void main( String[] args ) throws FileNotFoundException, IOException  
      {
      	HtmlConverter.convertToPdf(HTML, new FileOutputStream("string-to-pdf.pdf"));
      	
          System.out.println( "PDF Created!" );
      }
  }
  

  8 là lớp chính để chuyển HTML sang PDF
• Lớp

  package com.hmkcode;
  
  import java.io.FileNotFoundException;
  import java.io.FileOutputStream;
  import java.io.IOException;
  
  import com.itextpdf.html2pdf.HtmlConverter;
  
  public class App 
  {
  	public static final String HTML = "
  Hello
  "
  			+ "
  This was created using iText
  "
  			+ "hmkcode.com";
  	
  	
      public static void main( String[] args ) throws FileNotFoundException, IOException  
      {
      	HtmlConverter.convertToPdf(HTML, new FileOutputStream("string-to-pdf.pdf"));
      	
          System.out.println( "PDF Created!" );
      }
  }
  

  8 có ba phương thức chính với các kiểu nhập và trả về khác nhau
  • convertToDocument(). trả về ví dụ

    package com.hmkcode;
    
    import java.io.FileNotFoundException;
    import java.io.FileOutputStream;
    import java.io.IOException;
    
    import com.itextpdf.html2pdf.HtmlConverter;
    
    public class App 
    {
    	public static final String HTML = "
    Hello
    "
    			+ "
    This was created using iText
    "
    			+ "hmkcode.com";
    	
    	
        public static void main( String[] args ) throws FileNotFoundException, IOException  
        {
        	HtmlConverter.convertToPdf(HTML, new FileOutputStream("string-to-pdf.pdf"));
        	
            System.out.println( "PDF Created!" );
        }
    }
    

    1
  • convertToElements(). trả về một danh sách các phiên bản iText

    package com.hmkcode;
    
    import java.io.FileNotFoundException;
    import java.io.FileOutputStream;
    import java.io.IOException;
    
    import com.itextpdf.html2pdf.HtmlConverter;
    
    public class App 
    {
    	public static final String HTML = "
    Hello
    "
    			+ "
    This was created using iText
    "
    			+ "hmkcode.com";
    	
    	
        public static void main( String[] args ) throws FileNotFoundException, IOException  
        {
        	HtmlConverter.convertToPdf(HTML, new FileOutputStream("string-to-pdf.pdf"));
        	
            System.out.println( "PDF Created!" );
        }
    }
    

    2
  • convertToPdf(). phương pháp này chuyển đổi HTML sang PDF

Phương thức convertToPdf()

• Chúng tôi sẽ sử dụng phương thức convertToPdf() từ lớp

  package com.hmkcode;
  
  import java.io.FileNotFoundException;
  import java.io.FileOutputStream;
  import java.io.IOException;
  
  import com.itextpdf.html2pdf.HtmlConverter;
  
  public class App 
  {
  	public static final String HTML = "
  Hello
  "
  			+ "
  This was created using iText
  "
  			+ "hmkcode.com";
  	
  	
      public static void main( String[] args ) throws FileNotFoundException, IOException  
      {
      	HtmlConverter.convertToPdf(HTML, new FileOutputStream("string-to-pdf.pdf"));
      	
          System.out.println( "PDF Created!" );
      }
  }
  

  8 để chuyển đổi HTML sang PDF
• convertToPdf() có các biến thể khác nhau lấy HTML là

  package com.hmkcode;
  
  import java.io.FileNotFoundException;
  import java.io.FileOutputStream;
  import java.io.IOException;
  
  import com.itextpdf.html2pdf.HtmlConverter;
  
  public class App 
  {
  	public static final String HTML = "
  Hello
  "
  			+ "
  This was created using iText
  "
  			+ "hmkcode.com";
  	
  	
      public static void main( String[] args ) throws FileNotFoundException, IOException  
      {
      	HtmlConverter.convertToPdf(HTML, new FileOutputStream("string-to-pdf.pdf"));
      	
          System.out.println( "PDF Created!" );
      }
  }
  

  0,

  package com.hmkcode;
  
  import java.io.FileNotFoundException;
  import java.io.FileOutputStream;
  import java.io.IOException;
  
  import com.itextpdf.html2pdf.HtmlConverter;
  
  public class App 
  {
  	public static final String HTML = "
  Hello
  "
  			+ "
  This was created using iText
  "
  			+ "hmkcode.com";
  	
  	
      public static void main( String[] args ) throws FileNotFoundException, IOException  
      {
      	HtmlConverter.convertToPdf(HTML, new FileOutputStream("string-to-pdf.pdf"));
      	
          System.out.println( "PDF Created!" );
      }
  }
  

  1 hoặc

  package com.hmkcode;
  
  import java.io.FileNotFoundException;
  import java.io.FileOutputStream;
  import java.io.IOException;
  
  import com.itextpdf.html2pdf.HtmlConverter;
  
  public class App 
  {
  	public static final String HTML = "
  Hello
  "
  			+ "
  This was created using iText
  "
  			+ "hmkcode.com";
  	
  	
      public static void main( String[] args ) throws FileNotFoundException, IOException  
      {
      	HtmlConverter.convertToPdf(HTML, new FileOutputStream("string-to-pdf.pdf"));
      	
          System.out.println( "PDF Created!" );
      }
  }
  

  2 và ghi nội dung PDF vào

  package com.hmkcode;
  
  import java.io.FileNotFoundException;
  import java.io.FileOutputStream;
  import java.io.IOException;
  
  import com.itextpdf.html2pdf.HtmlConverter;
  
  public class App 
  {
  	public static final String HTML = "
  Hello
  "
  			+ "
  This was created using iText
  "
  			+ "hmkcode.com";
  	
  	
      public static void main( String[] args ) throws FileNotFoundException, IOException  
      {
      	HtmlConverter.convertToPdf(HTML, new FileOutputStream("string-to-pdf.pdf"));
      	
          System.out.println( "PDF Created!" );
      }
  }
  

  1,

  package com.hmkcode;
  
  import java.io.FileNotFoundException;
  import java.io.FileOutputStream;
  import java.io.IOException;
  
  import com.itextpdf.html2pdf.HtmlConverter;
  
  public class App 
  {
  	public static final String HTML = "
  Hello
  "
  			+ "
  This was created using iText
  "
  			+ "hmkcode.com";
  	
  	
      public static void main( String[] args ) throws FileNotFoundException, IOException  
      {
      	HtmlConverter.convertToPdf(HTML, new FileOutputStream("string-to-pdf.pdf"));
      	
          System.out.println( "PDF Created!" );
      }
  }
  

  4 hoặc

  package com.hmkcode;
  
  import java.io.FileNotFoundException;
  import java.io.FileOutputStream;
  import java.io.IOException;
  
  import com.itextpdf.html2pdf.HtmlConverter;
  
  public class App 
  {
  	public static final String HTML = "
  Hello
  "
  			+ "
  This was created using iText
  "
  			+ "hmkcode.com";
  	
  	
      public static void main( String[] args ) throws FileNotFoundException, IOException  
      {
      	HtmlConverter.convertToPdf(HTML, new FileOutputStream("string-to-pdf.pdf"));
      	
          System.out.println( "PDF Created!" );
      }
  }
  

  5 hiện có
• Trong bài đăng này, chúng tôi sẽ sử dụng các biến thể sau của convertToPdf()
  • convertToPdf(

    package com.hmkcode;
    
    import java.io.FileNotFoundException;
    import java.io.FileOutputStream;
    import java.io.IOException;
    
    import com.itextpdf.html2pdf.HtmlConverter;
    
    public class App 
    {
    	public static final String HTML = "
    Hello
    "
    			+ "
    This was created using iText
    "
    			+ "hmkcode.com";
    	
    	
        public static void main( String[] args ) throws FileNotFoundException, IOException  
        {
        	HtmlConverter.convertToPdf(HTML, new FileOutputStream("string-to-pdf.pdf"));
        	
            System.out.println( "PDF Created!" );
        }
    }
    

    0 html,

    package com.hmkcode;
    
    import java.io.FileNotFoundException;
    import java.io.FileOutputStream;
    import java.io.IOException;
    
    import com.itextpdf.html2pdf.HtmlConverter;
    
    public class App 
    {
    	public static final String HTML = "
    Hello
    "
    			+ "
    This was created using iText
    "
    			+ "hmkcode.com";
    	
    	
        public static void main( String[] args ) throws FileNotFoundException, IOException  
        {
        	HtmlConverter.convertToPdf(HTML, new FileOutputStream("string-to-pdf.pdf"));
        	
            System.out.println( "PDF Created!" );
        }
    }
    

    4 pdfStream)
  • convertToPdf(

    package com.hmkcode;
    
    import java.io.FileNotFoundException;
    import java.io.FileOutputStream;
    import java.io.IOException;
    
    import com.itextpdf.html2pdf.HtmlConverter;
    
    public class App 
    {
    	public static final String HTML = "
    Hello
    "
    			+ "
    This was created using iText
    "
    			+ "hmkcode.com";
    	
    	
        public static void main( String[] args ) throws FileNotFoundException, IOException  
        {
        	HtmlConverter.convertToPdf(HTML, new FileOutputStream("string-to-pdf.pdf"));
        	
            System.out.println( "PDF Created!" );
        }
    }
    

    2 htmlStream,

    package com.hmkcode;
    
    import java.io.FileNotFoundException;
    import java.io.FileOutputStream;
    import java.io.IOException;
    
    import com.itextpdf.html2pdf.HtmlConverter;
    
    public class App 
    {
    	public static final String HTML = "
    Hello
    "
    			+ "
    This was created using iText
    "
    			+ "hmkcode.com";
    	
    	
        public static void main( String[] args ) throws FileNotFoundException, IOException  
        {
        	HtmlConverter.convertToPdf(HTML, new FileOutputStream("string-to-pdf.pdf"));
        	
            System.out.println( "PDF Created!" );
        }
    }
    

    4 pdfStream)

Chuyển đổi chuỗi HTML sang PDF

• Ví dụ đơn giản nhất là chuyển đổi một

  package com.hmkcode;
  
  import java.io.FileNotFoundException;
  import java.io.FileOutputStream;
  import java.io.IOException;
  
  import com.itextpdf.html2pdf.HtmlConverter;
  
  public class App 
  {
  	public static final String HTML = "
  Hello
  "
  			+ "
  This was created using iText
  "
  			+ "hmkcode.com";
  	
  	
      public static void main( String[] args ) throws FileNotFoundException, IOException  
      {
      	HtmlConverter.convertToPdf(HTML, new FileOutputStream("string-to-pdf.pdf"));
      	
          System.out.println( "PDF Created!" );
      }
  }
  

  0 HTML sang PDF

package com.hmkcode;

import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;

import com.itextpdf.html2pdf.HtmlConverter;

public class App 
{
	public static final String HTML = "
Hello
"
			+ "
This was created using iText
"
			+ "hmkcode.com";
	
	
    public static void main( String[] args ) throws FileNotFoundException, IOException  
    {
    	HtmlConverter.convertToPdf(HTML, new FileOutputStream("string-to-pdf.pdf"));
    	
        System.out.println( "PDF Created!" );
    }
}

đầu ra. Đoạn mã trên sẽ tạo một tệp PDF string-to-pdf. pdf

Chuyển đổi tệp HTML sang PDF

• Chúng tôi có thể chuyển đổi tệp HTML sang PDF bằng cùng một phương thức convertToPdf() lấy HTML là

  package com.hmkcode;
  
  import java.io.FileNotFoundException;
  import java.io.FileOutputStream;
  import java.io.IOException;
  
  import com.itextpdf.html2pdf.HtmlConverter;
  
  public class App 
  {
  	public static final String HTML = "
  Hello
  "
  			+ "
  This was created using iText
  "
  			+ "hmkcode.com";
  	
  	
      public static void main( String[] args ) throws FileNotFoundException, IOException  
      {
      	HtmlConverter.convertToPdf(HTML, new FileOutputStream("string-to-pdf.pdf"));
      	
          System.out.println( "PDF Created!" );
      }
  }
  

  2 và viết nội dung PDF thành

  package com.hmkcode;
  
  import java.io.FileNotFoundException;
  import java.io.FileOutputStream;
  import java.io.IOException;
  
  import com.itextpdf.html2pdf.HtmlConverter;
  
  public class App 
  {
  	public static final String HTML = "
  Hello
  "
  			+ "
  This was created using iText
  "
  			+ "hmkcode.com";
  	
  	
      public static void main( String[] args ) throws FileNotFoundException, IOException  
      {
      	HtmlConverter.convertToPdf(HTML, new FileOutputStream("string-to-pdf.pdf"));
      	
          System.out.println( "PDF Created!" );
      }
  }
  

  4
• Tệp HTML có thể chứa tệp CSS và hình ảnh. Tuy nhiên, chúng cần phải ở cùng một vị trí của tệp HTML. Nếu CSS và hình ảnh nằm trong các thư mục khác nhau, chúng tôi cần sử dụng

  package com.hmkcode;
  
  import java.io.FileNotFoundException;
  import java.io.FileOutputStream;
  import java.io.IOException;
  
  import com.itextpdf.html2pdf.HtmlConverter;
  
  public class App 
  {
  	public static final String HTML = "
  Hello
  "
  			+ "
  This was created using iText
  "
  			+ "hmkcode.com";
  	
  	
      public static void main( String[] args ) throws FileNotFoundException, IOException  
      {
      	HtmlConverter.convertToPdf(HTML, new FileOutputStream("string-to-pdf.pdf"));
      	
          System.out.println( "PDF Created!" );
      }
  }
  

  53 để đặt URL cơ sở

mục lục. html

package com.hmkcode;

import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;

import com.itextpdf.html2pdf.HtmlConverter;

public class App 
{
	public static final String HTML = "
Hello
"
			+ "
This was created using iText
"
			+ "hmkcode.com";
	
	
    public static void main( String[] args ) throws FileNotFoundException, IOException  
    {
    	HtmlConverter.convertToPdf(HTML, new FileOutputStream("string-to-pdf.pdf"));
    	
        System.out.println( "PDF Created!" );
    }
}

package com.hmkcode;

import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;

import com.itextpdf.html2pdf.HtmlConverter;

public class App 
{
	public static final String HTML = "
Hello
"
			+ "
This was created using iText
"
			+ "hmkcode.com";
	
	
    public static void main( String[] args ) throws FileNotFoundException, IOException  
    {
    	HtmlConverter.convertToPdf(HTML, new FileOutputStream("string-to-pdf.pdf"));
    	
        System.out.println( "PDF Created!" );
    }
}

đầu ra. Đoạn mã trên sẽ tạo một tệp PDF string-to-index. pdf

Mã nguồn @ GitHub

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