java解析sql备份文件,并转换成excel表格
时间: 2023-07-13 17:07:00 浏览: 222
可以使用Java中的JDBC(Java Database Connectivity)技术连接到数据库,并执行SQL语句来解析SQL备份文件。然后可以使用Apache POI(一个Java库)来生成Excel文件并将数据写入其中。
以下是一个简单的示例代码,仅供参考:
```java
import java.io.BufferedReader;
import java.io.FileReader;
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.ResultSet;
import java.sql.Statement;
import java.util.ArrayList;
import java.util.List;
import org.apache.poi.ss.usermodel.Cell;
import org.apache.poi.ss.usermodel.Row;
import org.apache.poi.xssf.usermodel.XSSFWorkbook;
public class SqlToExcelConverter {
public static void main(String[] args) {
String sqlFilePath = "path/to/sql/backup/file.sql";
String excelFilePath = "path/to/excel/file.xlsx";
String databaseUrl = "jdbc:mysql://localhost:3306/mydatabase";
String databaseUser = "root";
String databasePassword = "password";
List<String> queries = readSqlQueries(sqlFilePath);
List<List<String>> data = new ArrayList<>();
try (Connection conn = DriverManager.getConnection(databaseUrl, databaseUser, databasePassword)) {
Statement stmt = conn.createStatement();
for (String query : queries) {
ResultSet rs = stmt.executeQuery(query);
while (rs.next()) {
List<String> row = new ArrayList<>();
for (int i = 1; i <= rs.getMetaData().getColumnCount(); i++) {
row.add(rs.getString(i));
}
data.add(row);
}
}
XSSFWorkbook workbook = new XSSFWorkbook();
Row headerRow = workbook.createSheet().createRow(0);
for (int i = 0; i < data.get(0).size(); i++) {
Cell cell = headerRow.createCell(i);
cell.setCellValue("Column " + (i + 1));
}
int rowIndex = 1;
for (List<String> row : data) {
Row dataRow = workbook.getSheetAt(0).createRow(rowIndex++);
int cellIndex = 0;
for (String value : row) {
Cell cell = dataRow.createCell(cellIndex++);
cell.setCellValue(value);
}
}
workbook.write(new FileOutputStream(excelFilePath));
workbook.close();
} catch (Exception e) {
e.printStackTrace();
}
}
private static List<String> readSqlQueries(String sqlFilePath) {
List<String> queries = new ArrayList<>();
try (BufferedReader reader = new BufferedReader(new FileReader(sqlFilePath))) {
StringBuilder queryBuilder = new StringBuilder();
String line;
while ((line = reader.readLine()) != null) {
if (line.trim().endsWith(";")) {
queryBuilder.append(line.trim());
queries.add(queryBuilder.toString());
queryBuilder.setLength(0);
} else {
queryBuilder.append(line.trim());
}
}
} catch (Exception e) {
e.printStackTrace();
}
return queries;
}
}
```
请注意,此代码仅用于演示目的,可能需要根据您的具体需求进行修改和调整。
阅读全文