change Category and add category jsp files and add ExcelUtils(test)

src/main/java/com/no1/wms/excel/ExcelUtils.java

@@ -0,0 +1,78 @@
+package com.no1.wms.excel;
+
+import java.io.IOException;
+import java.io.UnsupportedEncodingException;
+import java.util.List;
+
+import org.apache.poi.hssf.usermodel.HSSFWorkbook;
+import org.apache.poi.ss.usermodel.Cell;
+import org.apache.poi.ss.usermodel.Row;
+import org.apache.poi.ss.usermodel.Sheet;
+import org.apache.poi.ss.usermodel.Workbook;
+import org.springframework.stereotype.Service;
+
+import com.no1.wms.category.CategoryDto;
+
+import jakarta.servlet.http.HttpServletResponse;
+
+@Service
+public class ExcelUtils {
+	
+	public void downloadCategoryExcelFile(String excelFileName, HttpServletResponse response, 
+			String sheetName, String[] columnName, List<CategoryDto> dto) {
+		String fileName = "";
+		try {
+			fileName = new String((excelFileName + ".xlsx").getBytes("utf-8"), "iso-8859-1");
+		} catch (UnsupportedEncodingException e) {
+			e.printStackTrace();
+		}
+		response.setContentType("ms-vnd/excel");
+		response.setHeader("Content-Disposition", "attachment; filename=\"" + fileName + "\";");
+		
+		Workbook workbook = new HSSFWorkbook();
+		Sheet sheet = workbook.createSheet(sheetName);
+		
+		Row row = null;
+		Cell cell = null;
+		int rowNum = 0;
+		
+		row = sheet.createRow(rowNum);
+		for( int i = 0; i <= columnName.length -1; i++ ) {
+			cell = row.createCell(i);
+			cell.setCellValue(columnName[i]);	
+		}
+		rowNum += 1;
+		//수정부분
+		makeCategoryBody(dto,row,sheet,cell,rowNum);
+		
+		try {
+			workbook.write(response.getOutputStream());
+			workbook.close();
+		} catch (IOException e) {
+			e.printStackTrace();
+		}
+		
+		
+	}	
+	
+	public void makeCategoryBody(List<CategoryDto> listdto, Row row, Sheet sheet,
+			Cell cell, int rowNum) {
+		//
+		for (int i = 0; i < listdto.size(); i++) {
+			row = sheet.createRow(rowNum++);
+			CategoryDto dto = listdto.get(i);
+			cell = row.createCell(0);
+			cell.setCellValue(dto.getKan_code());
+			cell = row.createCell(1);
+			cell.setCellValue(dto.getCls_nm_1());
+			cell = row.createCell(2);
+			cell.setCellValue(dto.getCls_nm_2());
+			cell = row.createCell(3);
+			cell.setCellValue(dto.getCls_nm_3());
+			cell = row.createCell(4);
+			cell.setCellValue(dto.getCls_nm_4());
+		}
+	}
+
+	
+}