[转]Java Jacob操作Excel

Jacob项目：https://sourceforge.net/projects/jacob-project/

转自：https://blog.csdn.net/ZY_extreme/article/details/80019009

转自：http://www.360doc.com/content/14/0310/11/12385684_359224303.shtml

转自：https://blog.csdn.net/ZY_extreme/article/details/80007232

转自：https://www.cnblogs.com/vczh/p/5692527.html

转自：https://blog.csdn.net/javadakangxiaobai/article/details/83422396

转自：https://blog.csdn.net/a0701302/article/details/62236470

/**
    2018年4月20日
**/
import com.jacob.com.*;
import com.jacob.activeX.*;
 
public class ReadExcel {
    private static ActiveXComponent xl;
    private static Dispatch workbooks = null;
    private static Dispatch workbook = null;
    private static Dispatch sheet = null;
    private static String filename = null;
    private static boolean readonly = false;
 
    public static void main(String[] args) {
        String file = "E:\\frequently\\study\\ex.xlsx";
        OpenExcel(file, false);// false为不显示打开Excel
        SetValue("1","A1","Value","2");
        System.out.println(GetValue("基础设施情况","G10"));
        CloseExcel(false);
    }
 
    // 打开Excel文档
    private static void OpenExcel(String file, boolean f) {
        try {
            filename = file;
            xl = new ActiveXComponent("Excel.Application");
            xl.setProperty("Visible", new Variant(f));
            workbooks = xl.getProperty("Workbooks").toDispatch();
            workbook = Dispatch.invoke(workbooks, "Open", Dispatch.Method,
                    new Object[] { filename, new Variant(false), new Variant(readonly) }, // 是否以只读方式打开
                    new int[1]).toDispatch();
        } catch (Exception e) {
            e.printStackTrace();
        }
    }
 
    // 关闭Excel文档
    private static void CloseExcel(boolean f) {
        try {
            Dispatch.call(workbook, "Save");
            Dispatch.call(workbook, "Close", new Variant(f));
        } catch (Exception e) {
            e.printStackTrace();
        } finally {
            xl.invoke("Quit", new Variant[] {});
        }
    }
 
    // 写入值--以编号读写sheet
    private static void SetValue(String sheetItem ,String position, String type, String value) {
        // sheet = Dispatch.get(workbook,"ActiveSheet").toDispatch();
        Dispatch sheets = Dispatch.get(workbook, "Sheets").toDispatch();
        // 以编号读写sheet
        sheet = Dispatch.invoke(sheets, "Item", Dispatch.Get, new Object[] { new String(sheetItem) }, new int[1])
                .toDispatch();
        Dispatch cell = Dispatch.invoke(sheet, "Range", Dispatch.Get, new Object[] { position }, new int[1])
                .toDispatch();
        Dispatch.put(cell, type, value);
    }
 
    // 读取值--以名称读写sheet
    private static String GetValue(String sheetItem,String position) {
 
        // sheet = Dispatch.get(workbook,"ActiveSheet").toDispatch();
        Dispatch sheets = Dispatch.get(workbook, "Sheets").toDispatch();
        // 以名称读写sheet
        sheet = Dispatch.invoke(sheets, "Item", Dispatch.Get, new Object[] { new String(sheetItem) }, new int[1])
                .toDispatch();
        Dispatch cell = Dispatch.invoke(sheet, "Range", Dispatch.Get, new Object[] { position }, new int[1])
                .toDispatch();
        String value = Dispatch.get(cell, "Value").toString();
        return value;
    }
}

jacob读写Excel