java 怎么获取数据库的编码以及配置信息？

例如mysql里面my.ini里面的信息，port、default-character-set等等，不用io流读取文件的形式

Java也可以执行Mysql命令，你可以使用sql 语句，如下：
mysql> SHOW VARIABLES LIKE '%char%set%';
+--------------------------+----------------------------------+
| Variable_name | Value |
+--------------------------+----------------------------------+
| character_set_client | utf8 |
| character_set_connection | utf8 |
| character_set_database | gbk |
| character_set_filesystem | binary |
| character_set_results | utf8 |
| character_set_server | gbk |
| character_set_system | utf8 |
| character_sets_dir | /u01/mysql/share/mysql/charsets/ |
+--------------------------+----------------------------------+
8 rows in set
mysql> SHOW VARIABLES LIKE 'port';
+---------------+-------+
| Variable_name | Value |
+---------------+-------+
| port | 3306 |
+---------------+-------+
1 row in set
你如果想获取所有配置信息可以使用： SHOW VARIABLES命令。

1.jdbc.properties driver=com.microsoft.jdbc.sqlserver.sqlserverdriver url=jdbc:microsoft:sqlserver://ip地址:1433;databasename=test user=test password=test 2.一个servlet import java.io.printstream; import java.sql.*; import java.util.resourcebundle; public class dboperator { public dboperator() { } public static void main(string args[]) { connection con = getconnection(); system.out.println("connection success"); closeconnection(con); system.out.println("close success"); } public static connection getconnection() { try { return drivermanager.getconnection(url, user, password); } catch(sqlexception e) { e.printstacktrace(); } return null; } public static void closeconnection(connection con) { try { if(con != null) con.close(); } catch(sqlexception e) { e.printstacktrace(); } } private static string url; private static string user; private static string password; static { resourcebundle bundle = resourcebundle.getbundle("路径"); try { class.forname(bundle.getstring("driver")); } catch(classnotfoundexception e) { e.printstacktrace(); } url = bundle.getstring("url"); user = bundle.getstring("user"); password = bundle.getstring("password"); } }