帮助停留在从结果集导出到excel的这个项目上。以前的解决方案虽然没有回答我的问题,但是对他们有帮助。这是我的代码,到目前为止,它仅在数据库中显示一行。我的密码
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.sql.Statement;
import java.util.logging.Level;
import java.util.logging.Logger;
import org.apache.poi.hssf.usermodel.HSSFSheet;
import org.apache.poi.hssf.usermodel.HSSFWorkbook;
import org.apache.poi.ss.usermodel.*;
public class Plexada2 {
public static void main(String[] args) {
try {
Class.forName("sun.jdbc.odbc.JdbcOdbcDriver");
Connection conn = DriverManager.getConnection("jdbc:odbc:Storeway","root", "");
Statement st = conn.createStatement(ResultSet.TYPE_SCROLL_INSENSITIVE, ResultSet.CONCUR_UPDATABLE);
ResultSet rs = st.executeQuery("Select * from Storeway.order");
HSSFWorkbook workbook = new HSSFWorkbook();
HSSFSheet sheet = workbook.createSheet("lawix10");
Row row = sheet.createRow(0);
int x=0;
while (rs.next()){
String crate_id= rs.getString(2);
String content=rs.getString(3);
String Order_type= rs.getString(4);
java.sql.Date date= rs.getDate(5);
String datex= String.valueOf(date);
row.createCell(0).setCellValue(crate_id);
row.createCell(1).setCellValue(content);
row.createCell(2).setCellValue(Order_type);
row.createCell(3).setCellValue(datex);
}
x+=1;
String yemi = "C:\\Users\\lawix10\\Desktop\\testlno9.xls";
FileOutputStream fileOut;
try {
fileOut = new FileOutputStream(yemi);
workbook.write(fileOut);
fileOut.close();
}
啊,在发布之前尝试对其进行格式化的检查非常困难,对于查询,请尝试类似这样的操作。
try {
Class.forName("driverName");
Connection con = DriverManager.getConnection("url", "user", "pass");
Statement st = con.createStatement();
ResultSet rs = st.executeQuery("Select * from tablename");
HSSFWorkbook workbook = new HSSFWorkbook();
HSSFSheet sheet = workbook.createSheet("lawix10");
HSSFRow rowhead = sheet.createRow((short) 0);
rowhead.createCell((short) 0).setCellValue("CellHeadName1");
rowhead.createCell((short) 1).setCellValue("CellHeadName2");
rowhead.createCell((short) 2).setCellValue("CellHeadName3");
int i = 1;
while (rs.next()){
HSSFRow row = sheet.createRow((short) i);
row.createCell((short) 0).setCellValue(Integer.toString(rs.getInt("column1")));
row.createCell((short) 1).setCellValue(rs.getString("column2"));
row.createCell((short) 2).setCellValue(rs.getString("column3"));
i++;
}
String yemi = "g:/test.xls";
FileOutputStream fileOut = new FileOutputStream(yemi);
workbook.write(fileOut);
fileOut.close();
} catch (ClassNotFoundException e1) {
e1.printStackTrace();
} catch (SQLException e1) {
e1.printStackTrace();
} catch (FileNotFoundException e1) {
e1.printStackTrace();
} catch (IOException e1) {
e1.printStackTrace();
}
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我来说两句