另外JDBC的连接,知道
databaseName = "";
url = "jdbc:microsoft:sqlserver://";
user = "";
password = "";
应怎样写一个完整的JDBC数据库连接?
还有记录集怎么写和用?
databaseName = "";
url = "jdbc:microsoft:sqlserver://";
user = "";
password = "";
应怎样写一个完整的JDBC数据库连接?
还有记录集怎么写和用?
con = DriverManager.getConnection(
"jdbc:microsoft:sqlserver://服务器url或者服务器名称:端口;DatabaseName=数据库名称;selectMethod=cursor",用户名,密码);
return con;
Connection conn;
ResultSet rs;
PrepareStatement ps;
Statement st;
String strDriver;
String strUserName;
String strPassword;
String strUri;
String strDns;
public void test(){
try{
strUserName="userName";
strPassword="password";
//用户名和密码
strDriver="sun.jdbc.odbc.JdbcOdbcDriver";
//驱动程序这是同过jdbc-odbc桥来实现的,
Class.forName(strDriver);
strDns="yourDns"
strUri="jdbc:odbc:" + strDns;
//strDns是你的Odbc中的数据源的名称
conn=DriverManager.getConnection(strUri,strUserName,strPassword);
strSql="SELECT * FROM tableName";
//你的Sql语句
st=conn.createStatement(strSql);
//查询操作
rs=ps.executeQuery();
//ps.executeUpdate();
//若执行Delete,Insert,Update
然后就可以通过rs获取数据
while(rs.next()){
//你的代码
}
}
catch(SQLException se){
System.out.println(se);
}
catch(ClassNotFoundException cfe){
System.out.println(cfe);
}
catch(Exception e){
System.out.println(e);
}
}
//测试用
public static void main(String[] args){
DbOperation db=new DbOperation();
db.test();
}
}
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:1433;DatabaseName=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=myserver;
user=testuser;password=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\access数据库直连用ODBC的
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,"","");
Statement stmtNew=conn.createStatement() ;
package pachage01;public class connBean1
{
private String driverClassName =
"com.microsoft.jdbc.sqlserver.SQLServerDriver";
private String databaseName = "database01";
private String url = "jdbc:microsoft:sqlserver://**.**.**.***:****";
private String user = "***";
private String password = "*****";
private String maxconn = "50";
private int max = 0;
}上面这样对吗?