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如何操作Excel读取数据导入DB2数据库

【字号: 日期:2022-08-09 08:21:39浏览:56作者:猪猪
最近项目需要读取Excel,将数据导入数据库保存,最终可以用报表读取数据库并显示,比较简单。查了一下两者的资料,觉的也无所谓,我需要的功能比较简单,只要能读取Excel数据就行,最后决定使用POI,比较信任apache使用果然很简单,上网找了个源码,Copy过来稍微改改就能用了。下面付的代码是一个Demo,功能点有两个:一就是POI读取Excel,二是DB2数据库的连接和SQL执行。现在的问题就是这样做的话代码太死,针对一张Excel表就要编写一个专门的转换类,太麻烦了,要考虑怎么实现一个通用转换类。import java.io.FileInputStream;import java.io.IOException;import java.sql.Connection;import java.sql.DriverManager;import java.sql.SQLException;import java.sql.Statement;import org.apache.poi.hssf.usermodel.HSSFCell;import org.apache.poi.hssf.usermodel.HSSFRow;import org.apache.poi.hssf.usermodel.HSSFSheet;import org.apache.poi.hssf.usermodel.HSSFWorkbook;import org.apache.poi.poifs.filesystem.POIFSFileSystem;public class POITest {private static Connection conn = null;private static Statement stmt = null;private static boolean connectDB2() { String url = ""; String username = "username"; String password = "password"; //加载驱动程序以连接数据库 try {  //添加类库驱动包db2jcc.jar和db2jcc_license_cu.jar  Class.forName("com.ibm.db2.jcc.DB2Driver");  url = "jdbc:db2://192.168.0.1:50000/dbname";  //添加类库驱动包db2java.jar  //Class.forName("com.ibm.db2.jdbc.app.DB2Driver").newInstance();  //url = "jdbc:db2:njtcdata";  conn = DriverManager.getConnection(url, username, password);  stmt = conn.createStatement(); } //捕捉加载驱动程序异常 catch (ClassNotFoundException cnfex) {  System.err.println("装载JDBC驱动程序失败。");  cnfex.printStackTrace();  return false; } //捕捉连接数据库异常 catch (SQLException sqlex) {  System.err.println("无法连接数据库");  sqlex.printStackTrace();  //System.exit(1); // terminate program  return false; } return true;}private static boolean readExcelToDB2() { POIFSFileSystem fs = null; HSSFWorkbook wb = null; try {  fs = new POIFSFileSystem(new FileInputStream("c:test.xls"));  wb = new HSSFWorkbook(fs); } catch (IOException e) {  e.printStackTrace();  return false; } HSSFSheet sheet = wb.getSheetAt(0); HSSFRow row = null; HSSFCell cell = null; String name = ""; int id = 0; int rowNum, cellNum; int i; rowNum = sheet.getLastRowNum(); for (i = 0; i <= rowNum; i++) {  row = sheet.getRow(i);  //cellNum = row.getLastCellNum();  cell = row.getCell((short) 0);  name = cell.getStringCellValue();  cell = row.getCell((short) 1);  id = (int) cell.getNumericCellValue();  String sql = "insert into TEST(ID, NAME) values(" + id + ",'" + name + "')";  try {stmt.executeUpdate(sql);  } catch (SQLException e1) {e1.printStackTrace();return false;  } } return true;}public static void main(String[] args) { if (connectDB2()==true){  if (readExcelToDB2()==true)System.out.println("数据导入成功");  elseSystem.out.println("数据导入失败"); } else{  System.out.println("数据库连接失败"); }}}
标签: excel