--method one uses the Java Web to connect to MySQL in a JSP file driver
<%@ page language= "java" import= "java.util.*" pageencoding= "Utf-8"%> <% @page import= "java.sql.Connection"% > <% @page import= "Java.sql.DriverManager"%> <% @page import= "com.mysql.jdbc.driver.*"%> <% @page Import= "java.sql.SQLException"%> <%@ page import= "java.sql.driver.*"%> <%@ page import= "java.util.*"% ><!--Import all Java resource Bundles--> <%@ page import= "java.sql.*"%><!--Import all of the Java database resource bundles--> <% String path
= Request.getcontextpath ();
String basepath = request.getscheme () + "://" +request.getservername () + ":" +request.getserverport () +path+ "/"; %> <! DOCTYPE HTML PUBLIC "-//w3c//dtd HTML 4.01 transitional//en" >
---Method one uses the Java Web to connect the connection sqlsever in a JSP file
<%@ page language= "java" import= "java.util.*" pageencoding= "Utf-8"%> <% @page import= "java.sql.Connection"% > <% @page import= "Java.sql.DriverManager"%> <% @page import= "com.mysql.jdbc.driver.*"%> <% @page Import= "java.sql.SQLException"%> <%@ page import= "java.sql.driver.*"%> <%@ page import= "java.util.*"% ><!--Import all Java resource Bundles--> <%@ page import= "java.sql.*"%><!--Import all of the Java database resource bundles--> <% String path
= Request.getcontextpath ();
String basepath = request.getscheme () + "://" +request.getservername () + ":" +request.getserverport () +path+ "/"; %> <! DOCTYPE HTML PUBLIC "-//w3c//dtd HTML 4.01 transitional//en" >
---Method II using the Java Web to connect to the Sqlsever and MySQL drivers in the class file
public class Conndao {public Connection openconn () {Connection conn=null;
try {//This is the database connection parameter object Class.forName ("Com.mysql.jdbc.Driver") connected to "MYSQL"; SQL Server link class.forname ("Com.microsoft.sqlserver.jdbc.SQLServerDriver");/load Database driver, register to drive Manager//This is the connection "MYSQL" The database connection parameter object "mode One"/* Class.forName ("Com.mysql.jdbc.Driver");
Load MySQL driver.
String url= "Jdbc:mysql://localhost:3306/db_database10";
String username= "Cherish memory hidden Butterflies";
String userpassword= "123"; Conn=drivermanager.getconnection (URL, username, userpassword);///"Mode II"//Class.forName ("
Com.mysql.jdbc.Driver "); Conn=drivermanager.getconnection ("Jdbc:mysql://localhost:3306/db_database10", "Cherish Memory Butterfly", "123");//implement connection parameter library name username and password}
catch (ClassNotFoundException e) {//TODO auto-generated catch block E.printstacktrace ();
}/* String url= "Jdbc:mysql://localhost:3306/db_database10";
String username= "AA";
String userpassword= "AA"; */try {//This is the database connection parameter object//Conn=drivermanager.getconnection (URL, username, userpasswo of MYSQL)RD); SQL Server link conn=drivermanager.getconnection ("Jdbc:sqlserver://localhost:1433;databasename=db_database10", "
Cherish the memory of the Butterfly "," qwe199509060 ");
catch (SQLException e) {//TODO auto-generated catch block E.printstacktrace ();
Return conn; }
}
Note: here to download a driver package My resources have MySQL and SQL Server driver package to download myself!
-----------------------------------------------------give a final canonical format test-------------------------------------------
Code is as follows, do not do more parsing:
Import java.sql.*; public class Dbconnectionmanager {//sqlserver private String drivername = "com.microsoft.sqlserver.jdbc.SQLServerDrive R "//load driver private string url =" Jdbc:microsoft:sqlserver://localhost:1433;databasename=master ";/Set database connection string private String user = "sa";//Database login user name private string password = "root";//Database login password private static string message = "Congratulations, database connection is normal!"
";
public void Setdrivername (String newdrivername) {drivername = Newdrivername;
Public String Getdrivername () {return drivername;
The public void SetUrl (String newurl) {url = newurl;
Public String GetUrl () {return URL;
The public void SetUser (String newuser) {user = NewUser;
Public String GetUser () {return user;
} public void SetPassword (String newpassword) {password = NewPassword;
Public String GetPassword () {return password;
Public Connection getconnection () {try {class.forname (drivername);
Return drivermanager.getconnection (URL, user, password); catch (Exception e) {E.printstacktrace (); message = "Database connection Failed!"
";
return null;
} public static void Main (string[] args) {try{Dbconnectionmanager DCM = new Dbconnectionmanager ();
Connection conn = Dcm.getconnection ();
SYSTEM.OUT.PRINTLN (message);
}catch (Exception e) {e.printstacktrace ();
}}///the second package net.jiaxiang.Dao;
Import java.sql.Connection;
Import Java.sql.DriverManager; public class Conn {//definition hint test variable private static String message = "Congratulations, database connection is normal!"
"; Connection method public static Connection getconnection () {try {class.forname ("Com.microsoft.sqlserver.jdbc.SQLServerDriver") ;//Load Drive return drivermanager.getconnection ("Jdbc:microsoft:sqlserver://localhost:1433;databasename=master", "Cherish memory hidden disc "," qwe199509060 ")//implement connection parameter library name username and password} catch (Exception e) {message = database connection Failed!
";
E.printstacktrace ();//print exception return null; } public static void Main (string[] args) {getconnection ();//Call Connection SYSTEM.OUT.PRINTLN (message)//test Case}}
The above is a small part of the introduction of the use of Java Web in JSP files and class to connect MySQL and Sqlsever drive method, I hope to help you, if you have any questions please give me a message, small series will promptly reply to everyone. Here also thank you very much for the cloud Habitat Community website support!