SpringBoot集成Access DB实现数据导入和解析

<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0"
         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
    <parent>
        <artifactId>springboot-demo</artifactId>
        <groupId>com.et</groupId>
        <version>1.0-SNAPSHOT</version>
    </parent>
    <modelVersion>4.0.0</modelVersion>

    <artifactId>accessDB</artifactId>

    <properties>
        <maven.compiler.source>8</maven.compiler.source>
        <maven.compiler.target>8</maven.compiler.target>
    </properties>
    <dependencies>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>

        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-autoconfigure</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-test</artifactId>
            <scope>test</scope>
        </dependency>
        <dependency>
            <groupId>net.sf.ucanaccess</groupId>
            <artifactId>ucanaccess</artifactId>
            <version>5.0.1</version>
        </dependency>

    </dependencies>
</project>

     // Connect to the Access database
     String dbUrl = "jdbc:ucanaccess://" + tempFile.getAbsolutePath();
     connection = DriverManager.getConnection(dbUrl);

     // Query the specified table in the database
     Statement statement = connection.createStatement();
     String query = "SELECT * FROM " + tableName;
     ResultSet resultSet = statement.executeQuery(query);

     // Store query results in a List<Map<String, Object>>
     while (resultSet.next()) {
        Map<String, Object> row = new HashMap<>();
        int columnCount = resultSet.getMetaData().getColumnCount();
        for (int i = 1; i <= columnCount; i++) {
           String columnName = resultSet.getMetaData().getColumnName(i);
           row.put(columnName, resultSet.getObject(i));
        }
        results.add(row);
     }

     // Close the ResultSet and Statement
     resultSet.close();
     statement.close();

     // Mark temporary file for deletion upon JVM exit
     tempFile.deleteOnExit();

  } catch (Exception e) {
     e.printStackTrace();
  } finally {
     // Close the database connection
     if (connection != null) {
        try {
           connection.close();
        } catch (Exception e) {
           e.printStackTrace();
        }
     }
  }
  return results;