这个人很懒什么都没有留下

选中第一个添加就可以解决问题了

import java.sql.Connection; import java.sql.PreparedStatement; import java.sql.ResultSet; import java.util.ArrayList; public class onelong { //增删改查 public ArrayList<EMP> oneLong(String sql) { ArrayList<EMP> arr = new ArrayList<EMP>()

数据库 package ce; import java.sql.Connection; import java.sql.DriverManager; import java.sql.PreparedStatement; import java.util.Scanner; import dbconnectiondemo.DbConnection; import dbconnectiondemo.Dbsixsixsix; public class mysql { private static fi.

数据库 这个是主类 package ce; import java.awt.EventQueue; import java.util.List; import javax.swing.JFrame; import javax.swing.JOptionPane; import javax.swing.JTable; import javax.swing.table.DefaultTableModel; import javax.swing.JScrollPane; import javax...

package My; import java.sql.Connection; import java.sql.PreparedStatement; import java.sql.ResultSet; import java.util.ArrayList; import java.util.List; import com.mysql.cj.x.protobuf.MysqlxSession.Reset; public class selet { public boolean insertData(

记录一下学习代码 增删 改查后续添加 package My; import java.sql.Connection; import java.sql.PreparedStatement; import java.sql.SQLException; public class indes { //添加新数据 public boolean insertData(EMP emp) { Connection conn =null; PreparedStatement pStat=null; try