Java 使用com接口运行excel
我试图使用jacob运行excel,但它不断抛出异常,一直在搜索导致此类异常的原因,但没有效果Java 使用com接口运行excel,java,excel,com,jacob,Java,Excel,Com,Jacob,我试图使用jacob运行excel,但它不断抛出异常,一直在搜索导致此类异常的原因,但没有效果 package com.se.jaexcel; import com.jacob.activeX.ActiveXComponent; import com.jacob.com.Dispatch; import com.jacob.com.Variant; public class JExcel { /** * @param args */ public sta
package com.se.jaexcel;
import com.jacob.activeX.ActiveXComponent;
import com.jacob.com.Dispatch;
import com.jacob.com.Variant;
public class JExcel {
/**
* @param args
*/
public static void main(String[] args) {
ActiveXComponent xl = new ActiveXComponent("Excel.Application");
}
}
例外是
Exception in thread "main" com.jacob.com.ComFailException: Can't QI object for IDispatch
at com.jacob.com.Dispatch.createInstanceNative(Native Method)
at com.jacob.com.Dispatch.<init>(Dispatch.java:99)
at com.jacob.activeX.ActiveXComponent.<init>(ActiveXComponent.java:58)
at com.se.jaexcel.JExcel.main(JExcel.java:14)
线程“main”com.jacob.com.ComFailException中的异常:无法为IDispatch设置QI对象
位于com.jacob.com.Dispatch.createInstancential(本机方法)
在com.jacob.com.Dispatch.(Dispatch.java:99)
位于com.jacob.activeX.ActiveXComponent(ActiveXComponent.java:58)
位于com.se.jaexcel.JExcel.main(JExcel.java:14)
您没有加载任何本机dll。在下面的示例中,c:\myapp\lib包含jacob-1.18-M2-x64.dll和jacob-1.18-M2-x86.dll。如果不想从静态位置加载DLL,请参阅,了解如何从资源加载DLL
private static void loadLibrary(final String appDir) throws IOException {
final String libFile = "amd64".equals(System.getProperty("os.arch")) ?
"/jacob-1.18-M2-x64.dll" : "/jacob-1.18-M2-x86.dll";
System.setProperty(LibraryLoader.JACOB_DLL_PATH,
Paths.get(appDir, "lib", libFile).toString());
LibraryLoader.loadJacobLibrary();
}
public static void main(String[] args) {
loadLibrary("c:\\myapp");
ActiveXComponent xl = new ActiveXComponent("Excel.Application");
}