exceldispatchtest.java

Very Nice library for using ActiveX controls directly from java without heavy knowledge of JNI, simp

package com.jacob.samples.office;

import com.jacob.activeX.ActiveXComponent;
import com.jacob.com.ComThread;
import com.jacob.com.Dispatch;
import com.jacob.com.Variant;

/**
 * Sample test program snagged out of a question on the sun discussion area.
 * <p>
 * May need to run with some command line options (including from inside
 * Eclipse). Look in the docs area at the Jacob usage document for command line
 * options.
 */
public class ExcelDispatchTest {

	/**
	 * main run loop for test program
	 * 
	 * @param args
	 *            standard command line arguments
	 */
	public static void main(String[] args) {
		ComThread.InitSTA();

		ActiveXComponent xl = new ActiveXComponent("Excel.Application");
		try {
			System.out.println("version=" + xl.getProperty("Version"));
			System.out.println("version=" + Dispatch.get(xl, "Version"));
			Dispatch.put(xl, "Visible", new Variant(true));
			Dispatch workbooks = xl.getProperty("Workbooks").toDispatch();
			Dispatch workbook = Dispatch.get(workbooks, "Add").toDispatch();
			Dispatch sheet = Dispatch.get(workbook, "ActiveSheet").toDispatch();
			Dispatch a1 = Dispatch.invoke(sheet, "Range", Dispatch.Get,
					new Object[] { "A1" }, new int[1]).toDispatch();
			Dispatch a2 = Dispatch.invoke(sheet, "Range", Dispatch.Get,
					new Object[] { "A2" }, new int[1]).toDispatch();
			Dispatch.put(a1, "Value", "123.456");
			Dispatch.put(a2, "Formula", "=A1*2");
			System.out.println("a1 from excel:" + Dispatch.get(a1, "Value"));
			System.out.println("a2 from excel:" + Dispatch.get(a2, "Value"));
			Variant f = new Variant(false);
			Dispatch.call(workbook, "Close", f);
		} catch (Exception e) {
			e.printStackTrace();
		} finally {
			xl.invoke("Quit", new Variant[] {});
			ComThread.Release();
		}
	}

}