如何在 Java 中提取 PDF 資料

5.1. 從PDF文件提取數據

使用IronPDF for Java，您可以輕鬆從PDF文件中提取文本數據。 以下是從PDF文件提取數據的示例代碼。

PDF輸入

// Import the necessary IronPDF package for working with PDF documents
import com.ironsoftware.ironpdf.PdfDocument;

import java.io.IOException;
import java.nio.file.Paths;

public class Main {
    public static void main(String[] args) throws IOException {
        // Load the PDF document from the specified file
        PdfDocument pdf = PdfDocument.fromFile(Paths.get("business plan.pdf"));

        // Extract all text from the PDF document
        String text = pdf.extractAllText();

        // Print the extracted text to the console
        System.out.println("Text extracted from the PDF: " + text);
    }
}

// Import the necessary IronPDF package for working with PDF documents
import com.ironsoftware.ironpdf.PdfDocument;

import java.io.IOException;
import java.nio.file.Paths;

public class Main {
    public static void main(String[] args) throws IOException {
        // Load the PDF document from the specified file
        PdfDocument pdf = PdfDocument.fromFile(Paths.get("business plan.pdf"));

        // Extract all text from the PDF document
        String text = pdf.extractAllText();

        // Print the extracted text to the console
        System.out.println("Text extracted from the PDF: " + text);
    }
}

源代碼生成的輸出如下所示：

> Text extracted from the PDF:
> 
> CRAFT-ARENA
> 
> Muhammad Waleed Butt
> 
> Hassan Khan
> 
> ABOUT US
> 
> Craft-Arena is a partnership based business that will help local crafters of Pakistan to sell their handicrafts at good prices and helps them earn a good living.

5.2. 從URL提取數據

IronPDF for Java在運行時將URL轉換為PDF並從中提取文本。 此示例將顯示從URL提取文本的源代碼。

// Import the necessary IronPDF package for working with PDF documents
import com.ironsoftware.ironpdf.PdfDocument;

import java.io.IOException;

public class Main {
    public static void main(String[] args) throws IOException {
        // Convert a URL to a PDF and load it into a PdfDocument
        PdfDocument pdf = PdfDocument.renderUrlAsPdf("https://ironpdf.com/java/");

        // Extract all text from the PDF document
        String text = pdf.extractAllText();

        // Print the extracted text to the console
        System.out.println("Text extracted from the URLs: " + text);
    }
}

// Import the necessary IronPDF package for working with PDF documents
import com.ironsoftware.ironpdf.PdfDocument;

import java.io.IOException;

public class Main {
    public static void main(String[] args) throws IOException {
        // Convert a URL to a PDF and load it into a PdfDocument
        PdfDocument pdf = PdfDocument.renderUrlAsPdf("https://ironpdf.com/java/");

        // Extract all text from the PDF document
        String text = pdf.extractAllText();

        // Print the extracted text to the console
        System.out.println("Text extracted from the URLs: " + text);
    }
}

提取的網頁數據

5.3. 從表格數據中提取數據

使用IronPDF for Java從PDF中提取表格數據非常簡單； 您只需要一個包含表格的PDF，然後運行下面的代碼。

示例PDF表格輸入

// Import the necessary IronPDF package for working with PDF documents
import com.ironsoftware.ironpdf.PdfDocument;

import java.io.IOException;
import java.nio.file.Paths;

public class Main {
    public static void main(String[] args) throws IOException {
        // Load the PDF document from the specified file
        PdfDocument pdf = PdfDocument.fromFile(Paths.get("table.pdf"));

        // Extract all text from the PDF document, including table data
        String text = pdf.extractAllText();

        // Print the extracted table data to the console
        System.out.print("Text extracted from the Marked tables: " + text);
    }
}

// Import the necessary IronPDF package for working with PDF documents
import com.ironsoftware.ironpdf.PdfDocument;

import java.io.IOException;
import java.nio.file.Paths;

public class Main {
    public static void main(String[] args) throws IOException {
        // Load the PDF document from the specified file
        PdfDocument pdf = PdfDocument.fromFile(Paths.get("table.pdf"));

        // Extract all text from the PDF document, including table data
        String text = pdf.extractAllText();

        // Print the extracted table data to the console
        System.out.print("Text extracted from the Marked tables: " + text);
    }
}

> Test Case Description Expected Result Actual Result Status
> 
> 1 Test login functionality User should be able to log in with valid credentials
> 
> User log in successfully Pass
> 
> 2 Test search functionality Search results should be relevant and accurate
> 
> Search is accurate and provide relevant products Pass
> 
> 3 Test checkout process User should be able to complete a purchase successfully
> 
> User can purchase successfully Pass