无法使用 ArrayList 从嵌套 class 打印值

Question

我正在使用 Freemarker 2.3.23 生成报告。以下是我使用的 class 的定义：

public class result{
    public ArrayList<Table> expected;
    public ArrayList<Table> actual;
    public ArrayList<Table> result;
    public ArrayList<Stat> stat_list;

    public result(){
        expected=new ArrayList<Table>();
        actual=new ArrayList<Table>();
        result=new ArrayList<Table>();
        stat_list=new ArrayList<Stat>();
    }
    public ArrayList<Table> getexpected(){
        return expected;
    }
    public ArrayList<Table> getactual(){
        return actual;
    }
    public ArrayList<Table> getresult(){
        return result;
    }
    public ArrayList<Stat> getstat_list(){
        return stat_list;
    }
}

public class Table{
    public ArrayList<Row> contents;//First row in the table would be for the header.
    public HashMap<String,Integer> Col_Index_Map;//Column Header->Column Index Mapping
    public Table(){
        contents=new ArrayList<Row>();
        Col_Index_Map=new HashMap<String,Integer>();
    }
    public ArrayList<Row> getcontents(){
        return contents;
    }
    public HashMap<String,Integer> getCol_Index_Map(){
        return Col_Index_Map;
    }
}

public class Row {
    public ArrayList<Cell> fields;
    public int rowNo;
    public Row(){
        fields=new ArrayList<Cell>();
        rowNo=0;
    }
    public ArrayList<Cell> getfields(){
        return fields;
    }
    public int getrowNo(){
        return rowNo;
    }
}

public class Cell {
    public ArrayList<String> data;
    public Cell(){
        data=new ArrayList<String>();
    }
    public ArrayList<String> getdata(){
        return data;
    }
}

我使用下面的模板打印 table 中单元格中的每个元素。但是根本没有输出生成的报告是空的html：我尝试嵌套 2 层 class，它可以工作，但不是这种情况。

<#list expected as expected_table>
   <h2>Result Table:</h2>
   <table class='table table-bordered reportStyle'>
      <td>
         <#list expected_table.contents as expected_row>
            <tr>
                <#list expected_row.fields as expected_cell>
                    <#list expected_cell.data as expected_item>
                        ${expected_item}
                    </#list>                      
                </#list>        
            </tr>
        </#list>
        </td>
      </table>          
</#list>

Answer 1

以上代码应该可以工作。它不起作用的原因是对上面代码中未列出的字段的错误分配。

无法使用 ArrayList 从嵌套 class 打印值

Cannot print value from nested class with ArrayList

html

java

templates

freemarker

nested