Aspose.Cells Smart markers 基於模板導出Excel

Aspose.Cells可以預先定義Excel模板，然後填充數據(官方文檔:http://www.aspose.com/docs/display/cellsjava/Smart+Markers)。

 

設置的模板是一個標準的Excel文件,包含了可視化的格式，公式，以及標記(smart markers)，並且可以引用多個數據源。

支持的標記(Smart Marker Options)

&=DataSource.FieldName 數據元是ICellsDataTable或者是JavaBean
&=[Data Source].[Field Name] 數據源是 ResultSet
&=$VariableName  一個變量
&=$VariableArray 數組變量
&==DynamicFormula 暫時不清楚
&=&=RepeatDynamicFormula 動態計算

 

下面介紹這兩種標記的使用方式

1、&=$VariableName  一個變量
2、&=$VariableArray 數組變量

Java代碼

　　　　 String path = "SmartMarkerDesigner.xls";
        InputStream inputStream = ClassLoader.getSystemResourceAsStream(path);
        Workbook wb = new Workbook(inputStream);
        WorkbookDesigner designer = new WorkbookDesigner();
        designer.setWorkbook(wb);
        designer.setDataSource("Variable", "Single Variable");
        designer.setDataSource("MultiVariable", new String[]
        {
                "Variable 1", "Variable 2", "Variable 3"
        });
        designer.setDataSource("MultiVariable2", new String[]
        {
                "Skip 1", "Skip 2", "Skip 3"
        });
        designer.setDataSource("Array1Dim", new String[]
        {
                "A1", "A2", "A3"
        });
        designer.setDataSource("Array2Dim", new String[][]
        {
                {
                        "A11", "A12", "A13"
                },
                {
                        "A21", "A22", "A23", "A24"
                },
                {
                        "A31", "A32",
                },
        });

 

下面介紹JavaBean的使用方式

&=DataSource.FieldName 數據元是ICellsDataTable或者是JavaBean

&=Person.name(bean) 注意這個地方需要加上bean

其中&=&=C{r}*D{r} 是動態計算的標記 

&=&= 構面跟一個表達式 r代表當前行，C{r}*D{r} 這樣在循環的時候沒一行都會計算。

 

上面的例子用id這列進行分組Grouping Data

normal - The group by field(s) value is not be repeated for the corresponding records in the column; instead they are printed once per data group.

分組的列不會被循環輸出，只會輸出一次。

 

merge - The same behavior as for the normal parameter, except that it merges the cells in the group by field(s) for each group set.

和normal一樣，但是他會合並單元格

 

repeat - The group by field(s) value is repeated for the corresponding records.

分組的列會循環輸出

 

&=subtotal9:Person.id 放在那一列下面是按照id進行分組統計。

 

 

 

或者&=Employee.money(subtotal9:Employee.id) 這麼寫也行，按照id進行分組統計

 

 

subtotalN (N的值可以是1-11 平均數 總行數 最大值 最小值 總和 等等。)

Performs a summary operation for a specified field data related to a group by field. The N represents numbers between 1 and 11 which specify the function used when calculating subtotals within a list of data. (1=AVERAGE, 2=COUNT, 3=COUNTA, 4=MAX, 5=MIN,...9=SUM etc.) Refer to the Subtotal reference in Microsoft Excel's help for further details.

The format actually states as:
subtotalN:Ref where Ref refers to the group by column.

 

&=Products.Units(subtotal9:Products.ProductID) specifies summary function upon Units field with respect to the ProductID field in the Products table.

&=Tabx.Col3(subtotal9:Tabx.Col1) specifies summary function upon the Col3 field group by Col1 in the table Tabx.

&=Table1.ColumnD(subtotal9:Table1.ColumnA&Table1.ColumnB) specifies summary function upon ColumnD field group by ColumnA and ColumnB in the table Table1.