java - 如何在没有提示的情况下使用 com4j API 保存 excel 工作簿

Question

我正在尝试保存已自动修改的工作簿。这是一个例子:

import excel.*;
import com4j.Variant;
import static com4j.Variant.MISSING; 


public class ExcelDemo {
    public static void main(String[] args) {
    _Application app = excel.ClassFactory.createApplication();
    app.visible(0,false);

    //Variant readOnly = new Variant(Variant.Type.VT_BOOL);
    //readOnly.set(0);
    //Variant ignoreReadOnly = new Variant(Variant.Type.VT_BOOL);
    //ignoreReadOnly.set(1);
    //Variant saveBeforeExit = new Variant(Variant.Type.VT_BOOL);
    //saveBeforeExit.set(1);

    app.workbooks().open(
        "C:/dev/test.xlsx",
        MISSING, 
        MISSING, 
        MISSING, 
        MISSING,    
        MISSING,    
        MISSING,    
        MISSING, 
        MISSING,    
        MISSING,    
        MISSING,    
        MISSING, 
        MISSING,    
        MISSING,    
        MISSING,    
        0);
    app.calculate(0);
    app.save(MISSING,0);
    app.workbooks().close(0);
    //app.workbooks().close(saveBeforeExit,MISSING,MISSING);
}

上面的代码是从一个 ant 文件运行的，并产生了以下错误:

run:
 [java] Exception in thread "main" com4j.ComException: 800a03ec (Unknown error) : The file could not be accessed. Try one of the following:
 [java]
 [java] ò Make sure the specified folder exists.
 [java] ò Make sure the folder that contains the file is not read-only.
 [java] ò Make sure the file name does not contain any of the following characters:  <  >  ?  [  ]  :  | or  *
 [java] ò Make sure the file/path name doesn't contain more than 218 characters. : .\invoke.cpp:460
 [java]     at com4j.Wrapper.invoke(Wrapper.java:122)
 [java]     at $Proxy5.save(Unknown Source)
 [java]     at ExcelDemo.main(ExcelDemo.java:36)
 [java] Caused by: com4j.ComException: 800a03ec (Unknown error) : The file could not be accessed. Try one of the following:
 [java]
 [java] ò Make sure the specified folder exists.
 [java] ò Make sure the folder that contains the file is not read-only.
 [java] ò Make sure the file name does not contain any of the following characters:  <  >  ?  [  ]  :  | or  *
 [java] ò Make sure the file/path name doesn't contain more than 218 characters. : .\invoke.cpp:460
 [java]     at com4j.Native.invoke(Native Method)
 [java]     at com4j.StandardComMethod.invoke(StandardComMethod.java:95)
 [java]     at com4j.Wrapper$InvocationThunk.call(Wrapper.java:258)
 [java]     at com4j.Task.invoke(Task.java:44)
 [java]     at com4j.ComThread.run0(ComThread.java:149)
 [java]     at com4j.ComThread.run(ComThread.java:125)
 [java] Java Result: 1

我尝试了以下方法，但都没有成功:

1. 将 readOnly 参数设置为 false
2. 将 ignoreReadOnly 参数设置为 true
3. 同时执行 1 和 2
4. 将 saveBeforeExit 对象传递给保存方法

有没有办法在没有提示的情况下保存工作簿？请注意，上面的代码确实打开了文件，并且没有任何错误地计算了公式。

谢谢

Answer 1

好的，这是解决方案:

import excel.*;
import com4j.Variant;
import static com4j.Variant.MISSING; 


public class ExcelDemo {
    public static void main(String[] args) {
    _Application app = excel.ClassFactory.createApplication();
    app.visible(0,false);

 Variant saveBeforeExit = new Variant(Variant.Type.VT_BOOL);
 saveBeforeExit.set(1);

 _Workbook wb = app.workbooks().open(
    "C:/dev/test.xlsx",
    MISSING, //0
    MISSING, //false
    MISSING, //5
    MISSING, //"" 
    MISSING, //"" 
    MISSING, //true 
    MISSING, //true 
    MISSING, //obj 
    MISSING, //false 
    MISSING, //false 
    MISSING, //obj
    MISSING, 
    MISSING, 
    MISSING, 
 0);
 app.calculate(0);
 wb.close(saveBeforeExit, MISSING,MISSING, 0);
 app.quit();
}