我需要从Java中执行一个外部程序(偶然需要使用LibreOffice将一个文件转换为文件),我知道我需要的确切命令行:
/usr/bin/libreoffice --headless --convert-to pdf:'writer_pdf_Export' --outdir /home/develop/tomcat/mf/ROOT/private/docs/0/ /home/develop/tomcat/mf/ROOT/private/docs/0/35_invoice.fodt
从命令行执行时这个很完美。但是使用 ProcessBuilder
在 Java 中无法正常工作:
java.io.IOException: Cannot run program "/usr/bin/libreoffice --headless --convert-to pdf:'writer_pdf_Export' --outdir /home/develop/tomcat/mf/ROOT/private/docs/0 /home/develop/tomcat/mf/ROOT/private/docs/0/35_invoice.fodt": java.io.IOException: error=2, No such file or directory
我尝试了一些不同的方法但没有成功。这是最后一次测试的样本。
List<String> command = new ArrayList<String>();
command.add("/usr/bin/libreoffice");
command.add("--headless");
command.add("--convert-to pdf:'writer_pdf_Export' --outdir " + getDestinationDirectory(order) + " " + getInvoiceFilename() + ".fodt");
ProcessBuilder builder = new ProcessBuilder(command);
Process process = null;
try {
process = builder.start();
} catch (IOException ex) {
Logger.getLogger(Documents.class.getName()).log(Level.SEVERE, null, ex);
}
InputStream is = process.getInputStream();
InputStreamReader isr = new InputStreamReader(is);
BufferedReader br = new BufferedReader(isr);
String line;
try {
while ((line = br.readLine()) != null) {
System.out.println(line);
}
} catch (IOException ex) {
Logger.getLogger(Documents.class.getName()).log(Level.SEVERE, null, ex);
}
System.out.println("Program terminated!");