修改配置参数
/etc/my.cnf
在
[mysqld] 下面加上:
skip-grant-tables
配置项。
然后重启mysql服务,进入数据库后,找到mysql.user表,找到root用户对应的记录,然后修改密码的值,注意mysql密码是md5加密的,update user set password=md5('123456') where xxxxxx
然后刷新权限,FLUSH PRIVILEGES
关闭数据库,将参数修改回来,重启,用新密码就可以访问了。
1、Oracle8/8i/9i数据库(thin模式) Class.forName("oracle.jdbc.driver.OracleDriver").newInstance()String url="jdbc:oracle:thin:@localhost:1521:orcl"//orcl为数据库的SID String user="test"String password="test"Connection conn= DriverManager.getConnection(url,user,password) 2、DB2数据库 Class.forName("com.ibm.db2.jdbc.app.DB2Driver ").newInstance()String url="jdbc:db2://localhost:5000/sample"//sample为你的数据库名 String user="admin"String password=""Connection conn= DriverManager.getConnection(url,user,password) 3、Sql Server7.0/2000数据库 Class.forName("com.microsoft.jdbc.sqlserver.SQLServerDriver").newInstance()String url="jdbc:microsoft:sqlserver://localhost:1433DatabaseName=mydb"//mydb为数据库 String user="sa"String password=""Connection conn= DriverManager.getConnection(url,user,password) 4、Sybase数据库 Class.forName("com.sybase.jdbc.SybDriver").newInstance()String url =" jdbc:sybase:Tds:localhost:5007/myDB"//myDB为你的数据库名 Properties sysProps = System.getProperties()SysProps.put("user","userid")SysProps.put("password","user_password")Connection conn= DriverManager.getConnection(url, SysProps) 5、Informix数据库 Class.forName("com.informix.jdbc.IfxDriver").newInstance()String url = "jdbc:informix-sqli://123.45.67.89:1533/myDB:INFORMIXSERVER=myserveruser=testuserpassword=testpassword"//myDB为数据库名 Connection conn= DriverManager.getConnection(url) 6、MySQL数据库 Class.forName("org.gjt.mm.mysql.Driver").newInstance()String url ="jdbc:mysql://localhost/myDB?user=soft&password=soft1234&useUnicode=true&characterEncoding=8859_1" //myDB为数据库名 Connection conn= DriverManager.getConnection(url) 7、PostgreSQL数据库 Class.forName("org.postgresql.Driver").newInstance()String url ="jdbc:postgresql://localhost/myDB" //myDB为数据库名 String user="myuser"String password="mypassword"Connection conn= DriverManager.getConnection(url,user,password) 8、JDBC-ODBC桥 Class.forName("sun.jdbc.odbc.JdbcOdbcDriver")Connection con=DriverManager.getConnection("jdbc:odbc:jsp")jsp为建立的odbc数据源名,事先要先将SQL server的表设置为数据源。在“管理工具”-“数据源odbc”里用系统DNS添加。8.Oracle8/8i/9i数据库(thin模式) //import java.sql.* Class.forName("oracle.jdbc.driver.OracleDriver").newInstance() String url="jdbc:oracle:thin:@localhost:1521:orcl"//orcl为数据库的SID String user="test" String password="test" Connection conn= DriverManager.getConnection(url,user,password) Statement stmtNew=conn.createStatement() 9.DB2数据库 //import java.sql.* Class.forName("com.ibm.db2.jdbc.app.DB2Driver ").newInstance() String url="jdbc:db2://localhost:5000/sample"//sample为你的数据库名 String user="admin" String password="" Connection conn= DriverManager.getConnection(url,user,password) Statement stmtNew=conn.createStatement() 10.Sql Server7.0/2000数据库 //import java.sql.* Class.forName("com.microsoft.sqlserver.jdbc.SQLServerDriver").newInstance() //String url="jdbc:microsoft:sqlserver://localhost:1433DatabaseName=db2"//7.0、2000 String url="jdbc:sqlserver://localhost:1433DatabaseName=db2"//2005 //db2为数据库名 String user="sa" String password="" Connection conn= DriverManager.getConnection(url,user,password) Statement stmtNew=conn.createStatement() 11.Sybase数据库 //import java.sql.* Class.forName("com.sybase.jdbc.SybDriver").newInstance() String url =" jdbc:sybase:Tds:localhost:5007/myDB"//myDB为你的数据库名 Properties sysProps = System.getProperties() SysProps.put("user","userid") SysProps.put("password","user_password") Connection conn= DriverManager.getConnection(url, SysProps) Statement stmtNew=conn.createStatement() 12.Informix数据库 //import java.sql.* Class.forName("com.informix.jdbc.IfxDriver").newInstance() String url = "jdbc:informix-sqli://123.45.67.89:1533/myDB:INFORMIXSERVER=myserver user=testuserpassword=testpassword"//myDB为数据库名 Connection conn= DriverManager.getConnection(url) Statement stmtNew=conn.createStatement() 13.MySQL数据库 //import java.sql.* //Class.forName("org.gjt.mm.mysql.Driver").newInstance() Class.forName("com.mysql.jdbc.Driver") //String url ="jdbc:mysql://localhost/myDB?user=soft&password=soft1234&useUnicode=true&characterEncoding=8859_1" String url ="jdbc:mysql://localhost:3306/myDB" //myDB为数据库名 Connection conn= DriverManager.getConnection(url,"root","root") Statement stmtNew=conn.createStatement() 14.PostgreSQL数据库 //import java.sql.* Class.forName("org.postgresql.Driver").newInstance() String url ="jdbc:postgresql://localhost/myDB" //myDB为数据库名 String user="myuser" String password="mypassword" Connection conn= DriverManager.getConnection(url,user,password) Statement stmtNew=conn.createStatement() 15.access数据库直连用ODBC的 //import java.sql.* Class.forName("sun.jdbc.odbc.JdbcOdbcDriver") String url="jdbc:odbc:Driver={MicroSoft Access Driver (*.mdb)}DBQ="+application.getRealPath("/Data/ReportDemo.mdb") Connection conn = DriverManager.getConnection(url,"sa","") Statement stmtNew=conn.createStatement() 16.程序计时 long time1=System.currentTimeMillis() long time2=System.currentTimeMillis() long interval=time2-time1 17.延时 try { Thread.sleep(Integer.Parse(%%1)) } catch(InterruptedException e) { e.printStackTrace() } 18.连接Excel文件 //import java.sql.* Class.forName("sun.jdbc.odbc.JdbcOdbcDriver") String url = "jdbc:odbc:driver={Microsoft Excel Driver (*.xls)}DBQ=D:\\myDB.xls"// 不设置数据源 String user="myuser" String password="mypassword" Connection conn= DriverManager.getConnection(url,user,password) Statement stmtNew=conn.createStatement()欢迎分享,转载请注明来源:内存溢出
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