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excel表數據導入mysql用idea

錢浩然2年前14瀏覽0評論

當我們需要將Excel表中的數據導入MySQL時,我們可以使用Java開發工具IDEA來實現這個過程

首先,我們需要在項目中添加相關的依賴,如:

<dependency>
<groupId>org.apache.poi</groupId>
<artifactId>poi</artifactId>
<version>4.1.0</version>
</dependency>
<dependency>
<groupId>org.apache.poi</groupId>
<artifactId>poi-ooxml</artifactId>
<version>4.1.0</version>
</dependency>
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<version>8.0.19</version>
</dependency>

然后,我們需要創建一個ExcelUtil工具類,用來讀取Excel表中的數據:

public class ExcelUtil {
public static List<List<String>> readExcel(String path) {
List<List<String>> result = new ArrayList<>();
try {
Workbook workbook = WorkbookFactory.create(new File(path));
Sheet sheet = workbook.getSheetAt(0);
for (int i = 0; i <= sheet.getLastRowNum(); i++) {
Row row = sheet.getRow(i);
List<String> rowList = new ArrayList<>();
for (int j = 0; j < row.getLastCellNum(); j++) {
Cell cell = row.getCell(j);
String value = "";
if (cell != null) {
value = cell.toString();
}
rowList.add(value);
}
result.add(rowList);
}
} catch (Exception e) {
e.printStackTrace();
}
return result;
}
}

接著,我們需要創建一個MysqlUtil工具類,用來將數據導入MySQL中:

public class MysqlUtil {
public static void insertData(List<List<String>> data) {
try {
Class.forName("com.mysql.cj.jdbc.Driver");
String url = "jdbc:mysql://localhost:3306/test?useSSL=false&serverTimezone=UTC";
String user = "root";
String password = "123456";
Connection connection = DriverManager.getConnection(url, user, password);
Statement statement = connection.createStatement();
for (List<String> row : data) {
String sql = "INSERT INTO student(name, age, sex) VALUES('" + row.get(0) + "', " + row.get(1) + ", '" + row.get(2) + "')";
statement.executeUpdate(sql);
}
statement.close();
connection.close();
} catch (Exception e) {
e.printStackTrace();
}
}
}

最后,在Main方法中調用ExcelUtil和MysqlUtil的方法即可:

public static void main(String[] args) {
List<List<String>> data = ExcelUtil.readExcel("students.xlsx");
MysqlUtil.insertData(data);
}

這樣,我們就可以通過IDEA將Excel表中的數據導入MySQL中了。