public class ExcelToData {
public static void excel2Data(Connection conn, String excelPath) throws FileNotFoundException {
try {
excelPath = "C:\\Users\\Administrator\\Desktop\\test.xlsx";
//String encoding = "GBK";
File excel = new File(excelPath);
if (excel.isFile() && excel.exists()) { //判断文件是否存在
String[] split = excel.getName().split("\\."); //.是特殊字符，需要转义！！！！！
Workbook wb = null;
//根据文件后缀（xls/xlsx）进行判断
if ("xls".equals(split[1])) {
InputStream fis = new FileInputStream(excel); //文件流对象
wb = new HSSFWorkbook(fis);
} else if ("xlsx".equals(split[1])) {
InputStream fis = new FileInputStream(excel);
wb = new XSSFWorkbook(fis);
} else {
System.out.println("文件类型错误!");
return;
}
//开始解析
Sheet sheet = wb.getSheetAt(0); //读取sheet 0
int firstRowIndex = sheet.getFirstRowNum() + 2; //第一行是列名，所以不读
int lastRowIndex = sheet.getLastRowNum();
String name = null;
String age = null;
String sex = null;
//属性字段行
Row title = sheet.getRow(firstRowIndex - 1);
for (int rIndex = firstRowIndex; rIndex <= lastRowIndex; rIndex++) { //遍历行
Row row = sheet.getRow(rIndex);
if (row != null) {
int firstCellIndex = title.getFirstCellNum();
int lastCellIndex = title.getLastCellNum();
for (int cIndex = firstCellIndex; cIndex < lastCellIndex; cIndex++) { //遍历列
Cell cell = row.getCell(cIndex);
if (cell != null && !"".equals(cell.toString().trim())) {
switch (cIndex) {
case 0:
name = cell.toString();
break;
case 1:
age = cell.toString();
break;
case 2:
sex = cell.toString();
break;
default:
break;
}
}
}
insertMethod(conn, name, age, sex);
}
}
} else {
System.out.println("找不到指定的文件");
}
} catch (Exception e) {
e.printStackTrace();
}
}
public static void insertMethod(Connection conn, String name, String age, String sex) {
try {
//excel表中的数字会转换为字符串，如11会变成'11.0'，需要手动将其转回成数字
int i = age.lastIndexOf(".");
String substring = age.substring(0, i);
Integer age1 = Integer.valueOf(substring);
String sql = "insert into test(name,age,sex) values(?,?,?)";
PreparedStatement statement = conn.prepareStatement(sql);
statement.setString(1, name);
statement.setInt(2, age1);
statement.setString(3, sex);
statement.executeUpdate();
conn.close();
} catch (SQLException e) {
e.printStackTrace();
}
}
}以上代码合并单元格也可使用，但是在单元格出现空值时，会默认为上一行相同位置单元格内容
以下是我项目中的源码，但是合并单元格会报错，空单元格也会报错，必须每格都填
/**
* Description : 将excel导入数据库
*
* @param inputStream
* @param extName 文件后缀
* @param fileId
* @return : void
* @throws Exception
* @date : 2019-01-23 09:18
* @author : PZG
*/
public void excel2Data(InputStream inputStream, String extName, Integer fileId) throws CustomException {
try {
Workbook wb = null;
//根据文件后缀（xls/xlsx）进行判断
if ("xls".equals(extName)) {
wb = new HSSFWorkbook(inputStream);
} else if ("xlsx".equals(extName)) {
wb = new XSSFWorkbook(inputStream);
} else {
throw new CustomException("上传文件不是excel文件!");
}
//开始解析
Sheet sheet = wb.getSheetAt(0); //读取sheet 0
int firstRowIndex = sheet.getFirstRowNum() + 2; //第一行是列名，所以不读
int lastRowIndex = sheet.getLastRowNum();
List<ProcessExcelInfo> processExcelInfoList = new ArrayList<>();
String ProvideOgName = null;
String ProvideOgCode = null;
String ApplyDataName = null;
String ApplyDataInfo = null;
String DataType = null;
String ApplyReason = null;
//属性字段行
Row title = sheet.getRow(firstRowIndex - 1);
for (int rIndex = firstRowIndex; rIndex <= lastRowIndex; rIndex++) { //遍历行
Row row = sheet.getRow(rIndex);
if (row != null) {
ProcessExcelInfo processExcelInfo = new ProcessExcelInfo();
int firstCellIndex = title.getFirstCellNum();
int lastCellIndex = title.getLastCellNum();
for (int cIndex = firstCellIndex; cIndex < lastCellIndex; cIndex++) { //遍历列
Cell cell = row.getCell(cIndex);
//获取空值的单元格
if (cell == null || "".equals(cell.toString().trim())) {
Integer rr = (rIndex + 1);
Integer cc = (cIndex + 1);
String ss = (char) (cc + 64) + "";
String asd = ss + rr;
throw new CustomException("excel文件导入数据库失败:"+asd + " 单元格空值!");
} else {
switch (cIndex) {
case 0:
ProvideOgName = cell.toString();
break;
case 1:
ProvideOgCode = cell.toString();
break;
case 2:
ApplyDataName = cell.toString();
break;
case 3:
ApplyDataInfo = cell.toString();
break;
case 4:
DataType = cell.toString();
break;
case 5:
ApplyReason = cell.toString();
break;
default:
break;
}
}
}
processExcelInfo.setProvideOgName(ProvideOgName);
processExcelInfo.setProvideOgCode(ProvideOgCode);
processExcelInfo.setApplyDataName(ApplyDataName);
processExcelInfo.setApplyDataInfo(ApplyDataInfo);
processExcelInfo.setDataType(DataType);
processExcelInfo.setDataType(DataType);
processExcelInfo.setApplyReason(ApplyReason);
processExcelInfo.setFileId(fileId);
processExcelInfo.setMeetingResult(4);
processExcelInfoList.add(processExcelInfo);
}
}
insertMethod(processExcelInfoList);
}catch (CustomException e){
throw e;
}
catch (Exception e) {
e.printStackTrace();
throw new CustomException("excel文件导入数据库失败");
}
}
/**
* Description : 向表中插入数据
*
* @param processExcelInfoList
* @return : void
* @throws Exception
* @date : 2019-01-23 09:19
* @author : PZG
*/
public void insertMethod(List<ProcessExcelInfo> processExcelInfoList) {
processExcelInfoMapper.insertList(processExcelInfoList);
}