接第二版
将第二版导出的数据导入到数据库中
java代码
@SpringBootTest(classes = {ShujiegouApplication.class})
@RunWith(SpringJUnit4ClassRunner.class)
public class PoiInsertDataBase {
@Autowired
private SysColumnService sysColumnService;
List<SysColumn> sysColumnAll = new ArrayList<>();
// public void test(MultipartFile file) throws Exception {
// InputStream inputStream = file.getInputStream();
@Test
public void test2() throws Exception {
// 1.读取文件
FileInputStream fileInputStream = new FileInputStream(new File("E://gurua.xls"));
// 2.解析流得到工作簿对象
HSSFWorkbook workbook = new HSSFWorkbook(fileInputStream);
// 3.获取表
// HSSFSheet sheet = workbook.getSheetAt(0); //根据下标获取表
HSSFSheet sheet = workbook.getSheet("guru"); //根据表名获取表
// 4.获取行 1----最后一行
int lastRowNum = sheet.getLastRowNum();
// 5.获取数据封装在集合中
for (int i = 1; i <= lastRowNum; i++) {
SysColumn sysColumn = new SysColumn();
// 获取行
HSSFRow row = sheet.getRow(i);
// 获取单元格和数据
HSSFCell cell0 = row.getCell(0);
double numericCellValue = cell0.getNumericCellValue();
int id = (int) numericCellValue;
sysColumn.setId(id);
HSSFCell cell1 = row.getCell(1);
String columnName = cell1.getStringCellValue();
sysColumn.setColumnName(columnName);
HSSFCell cell2 = row.getCell(2);
double numericCellValue2 = cell2.getNumericCellValue();
int parentId = (int) numericCellValue2;
sysColumn.setParentId(parentId);
HSSFCell cell3 = row.getCell(3);
double numericCellValue3 = cell3.getNumericCellValue();
int columnRank = (int) numericCellValue3;
sysColumn.setColumnRank(columnRank);
HSSFCell cell4 = row.getCell(4);
String stringCellValue = cell4.getStringCellValue();
sysColumn.setEnName(stringCellValue);
// 封装好的对象放入集合
sysColumnAll.add(sysColumn);
}
// 6.添加数据库
for (SysColumn sysColumn : sysColumnAll) {
System.out.println(sysColumn);
sysColumnService.insert(sysColumn);
}
}
}
实体类
@Data
@AllArgsConstructor
@NoArgsConstructor
@Table(name = "sys_column")
public class SysColumn {
@Id
private Integer id;
private String columnName;
private Integer parentId;
private Integer columnRank;
private String enName;
}
数据库截图
这辈子坚持与不坚持都不可怕,怕的是独自走在坚持的道路上!