ExcelPOI读取封装(文件+示范代码)packageorg.excel.service;importjava.io.FileInputStream;importjava.io.FileNotFoundException;importjava.io.FileWriter;importjava.io.IOException;importjava.lang.reflect.Field;importjava.sql.Connection;importjava.sql.DriverManager;importjava.sql.PreparedStatement;importjava.sql.ResultSet;imp