帮我把这段代码加个注释,thank you!public class DB {\x05// ODBC方式连接数据库String sDBDriver = "com.microsoft.jdbc.sqlserver.SQLServerDriver";String sConnStr = "jdbc:microsoft:sqlserver://127.0.0.1:1433;databaseName= bg" ;\x05Connect

帮我把这段代码加个注释,thank you!public class DB {\x05// ODBC方式连接数据库String sDBDriver = "com.microsoft.jdbc.sqlserver.SQLServerDriver";String sConnStr = "jdbc:microsoft:sqlserver://127.0.0.1:1433;databaseName= bg" ;\x05Connect
帮我把这段代码加个注释,thank you!
public class DB {
\x05// ODBC方式连接数据库
String sDBDriver = "com.microsoft.jdbc.sqlserver.SQLServerDriver";
String sConnStr = "jdbc:microsoft:sqlserver://127.0.0.1:1433;databaseName= bg" ;
\x05Connection conn = null;
\x05Statement stmt = null;
\x05ResultSet rs = null;
public DB() {
\x05\x05try {
\x05\x05\x05Class.forName(sDBDriver);
\x05\x05} catch (java.lang.ClassNotFoundException e) {
\x05\x05\x05System.err.println("数据库驱动注册错误信息：" + e.getMessage());
\x05\x05}
\x05}

帮我把这段代码加个注释,thank you!public class DB {\x05// ODBC方式连接数据库String sDBDriver = "com.microsoft.jdbc.sqlserver.SQLServerDriver";String sConnStr = "jdbc:microsoft:sqlserver://127.0.0.1:1433;databaseName= bg" ;\x05Connect
public class DB {
\x05// ODBC方式连接数据库
String sDBDriver = "com.microsoft.jdbc.sqlserver.SQLServerDriver";//这是连接数据库用的驱动类的类全名
String sConnStr = "jdbc:microsoft:sqlserver://127.0.0.1:1433;databaseName= bg" ;//连接数据库的URL,127.0.0.1:1433是机器地址加端口号,后面是数据库名字
\x05Connection conn = null;
\x05Statement stmt = null;
\x05ResultSet rs = null;
public DB() {
\x05\x05try {
\x05\x05\x05Class.forName(sDBDriver);//加载驱动类
\x05\x05} catch (java.lang.ClassNotFoundException e) {
\x05\x05\x05System.err.println("数据库驱动注册错误信息：" + e.getMessage());
\x05\x05}
\x05}