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連接了數(shù)據(jù)庫

import java.sql.Connection; import java.sql.DriverManager;public class dataBase {private String driverName="com.microsoft.sqlserver.jdbc.SQLServerDriver"; //驅(qū)動private String dbURL="jdbc:sqlserver://localhost:1433;DatabaseName=testJava";// 端口 數(shù)據(jù)庫名private String userName="kyvlms";private String userPwd="19990616op";Connection connect () throws Exception{Class.forName(driverName);Connection dbConn = DriverManager.getConnection(dbURL,userName,userPwd);return dbConn;} }

存卡片段?

public class Cardsql {private List<String> blueCard = new ArrayList<>();private List<String> purpleCard = new ArrayList<>();private List<String> goldCard = new ArrayList<>();public Cardsql() throws Exception {setBlueCard();setGoldCard();setPurpleCard();}public List<String> getBlueCard() {return blueCard;}public void setBlueCard() throws Exception {Connection dbconn = new dataBase().connect();Statement stat = dbconn.createStatement();String a = "SELECT * FROM blueCard ORDER BY Card_Name ";ResultSet rs = stat.executeQuery(a);while(rs.next()){blueCard.add(rs.getString("Card_Name"));}dbconn.close();}public List<String> getPurpleCard() {return purpleCard;}public void setPurpleCard() throws Exception {Connection dbconn = new dataBase().connect();Statement stat = dbconn.createStatement();String a = "SELECT * FROM purpleCard ORDER BY Card_Name ";ResultSet rs = stat.executeQuery(a);while(rs.next()){purpleCard.add(rs.getString("Card_Name"));}dbconn.close();}public List<String> getGoldCard() {return goldCard;}public void setGoldCard() throws Exception {Connection dbconn = new dataBase().connect();Statement stat = dbconn.createStatement();String a = "SELECT * FROM goldCard ORDER BY Card_Name ";ResultSet rs = stat.executeQuery(a);while(rs.next()){goldCard.add(rs.getString("Card_Name"));}dbconn.close();} }

可以，這次出金了?

?

總結(jié)

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