Examples with BaseRowModel com.alibaba.excel.metadata.BaseRowModel used on opensource projects

Example 1 with BaseRowModel

use of com.alibaba.excel.metadata.BaseRowModel in project SpringBoot-Hello by ruiyeclub.

the class ExcelUtil method writeExcel.

/**
 * @param outputStream  Excel的输出流
 * @param sheetAndTable sheet和table名，格式：<sheet名，<table名集合>>
 * @param data          <sheet名，<table名，table数据集>>
 * @param clazz         <sheet名，<table名，table数据集实体class类型>>
 * @param excelTypeEnum Excel的格式(XLS或XLSX)
 * @Description: 使用模型来写入Excel，多sheet，多table
 * @Date: 2020/1/16 21:43
 * @Return: byte[]
 * @Throws: Exception
 */
public static byte[] writeExcel(ByteArrayOutputStream outputStream, Map<String, List<String>> sheetAndTable, Map<String, Map<String, List<? extends BaseRowModel>>> data, Map<String, Map<String, Class<? extends BaseRowModel>>> clazz, ExcelTypeEnum excelTypeEnum) throws Exception {
    // 这里指定需要表头，因为model通常包含表头信息
    ExcelWriter writer = new ExcelWriter(outputStream, excelTypeEnum, true);
    Iterator<Map.Entry<String, List<String>>> iterator = sheetAndTable.entrySet().iterator();
    int sheetNo = 1;
    // 遍历sheet
    while (iterator.hasNext()) {
        Map.Entry<String, List<String>> next = iterator.next();
        // 当前sheet名
        String sheetName = next.getKey();
        // 当前sheet对应的table的实体类class对象集合
        Map<String, Class<? extends BaseRowModel>> tableClasses = clazz.get(sheetName);
        // 当前sheet对应的table的数据集合
        Map<String, List<? extends BaseRowModel>> dataListMaps = data.get(sheetName);
        Sheet sheet = new Sheet(sheetNo, 0);
        sheet.setSheetName(sheetName);
        int tableNo = 1;
        Iterator<Map.Entry<String, Class<? extends BaseRowModel>>> iterator1 = tableClasses.entrySet().iterator();
        // 遍历table
        while (iterator1.hasNext()) {
            Map.Entry<String, Class<? extends BaseRowModel>> next1 = iterator1.next();
            // 当前table名
            String tableName = next1.getKey();
            // 当前table对应的class
            Class<? extends BaseRowModel> tableClass = next1.getValue();
            // 当前table对应的数据集
            List<? extends BaseRowModel> tableData = dataListMaps.get(tableName);
            Table table = new Table(tableNo);
            table.setClazz(tableClass);
            writer.write(tableData, sheet, table);
            tableNo++;
        }
        sheetNo++;
    }
    writer.finish();
    return outputStream.toByteArray();
}