Java Libreoffice 使用文件流转换pdf
时间: 2024-01-27 09:04:50 浏览: 117
你可以使用Java的FileInputStream和FileOutputStream类来读写文件,然后使用LibreOffice的API将文件转换为PDF格式。以下是一个示例代码:
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import com.sun.star.beans.PropertyValue;
import com.sun.star.frame.XComponentLoader;
import com.sun.star.lang.XComponent;
import com.sun.star.uno.UnoRuntime;
import com.sun.star.uno.XComponentContext;
public class ConvertToPDF {
public static void main(String[] args) {
String inputFile = "input.docx";
String outputFile = "output.pdf";
convertToPDF(inputFile, outputFile);
}
public static void convertToPDF(String inputFile, String outputFile) {
try {
// initialize LibreOffice API
XComponentContext xContext = com.sun.star.comp.helper.Bootstrap.bootstrap();
XComponentLoader xLoader = UnoRuntime.queryInterface(XComponentLoader.class,
xContext.getServiceManager().createInstanceWithContext("com.sun.star.frame.Desktop", xContext));
// load input file
String inputURL = new File(inputFile).toURI().toString();
PropertyValue[] propertyValues = new PropertyValue[0];
XComponent xComponent = xLoader.loadComponentFromURL(inputURL, "_blank", 0, propertyValues);
// prepare output file
String outputURL = new File(outputFile).toURI().toString();
PropertyValue[] convertProperties = new PropertyValue[2];
convertProperties[0] = new PropertyValue();
convertProperties[0].Name = "FilterName";
convertProperties[0].Value = "writer_pdf_Export";
convertProperties[1] = new PropertyValue();
convertProperties[1].Name = "Overwrite";
convertProperties[1].Value = true;
// convert to PDF
UnoRuntime.queryInterface(XComponent.class, xComponent).storeToURL(outputURL, convertProperties);
// close input file
xComponent.dispose();
// shutdown LibreOffice API
com.sun.star.util.XCloseable xCloseable = UnoRuntime.queryInterface(com.sun.star.util.XCloseable.class,
xLoader);
xCloseable.close(false);
System.exit(0);
} catch (Exception e) {
e.printStackTrace();
}
}
}
在这个示例中,我们打开一个Word文档,将其转换为PDF格式,并将其保存到输出文件中。你需要将input.docx替换为你要转换的文件名,将output.pdf替换为你想要保存的PDF文件名。请注意,你需要将LibreOffice的JAR文件添加到项目的类路径中。
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