1 建立数据库,建表。
数据库:text表:fruit
2写db连接类
public class DBConMgr {
//private String driverName="oracle.jdbc.driver.OracleDriver";
private String driverName="com.microsoft.sqlserver.jdbc.SQLServerDriver";
private String userName="sa";
private String userPwd="sa123456";
private String url="jdbc:sqlserver://localhost:1433; DatabaseName=text";
public Connection conn=null;
public Statement sm=null;
public PreparedStatement psm=null;
public void ConnectDB(){
try {
Class.forName(driverName).newInstance();
conn=DriverM