In the previous write application, I have experienced successful experience through JDBC. Can I connect MYSQL through the same code in a web page written in JSP? The result is negative, when I copied the same code to the file, an error occurs. So Baidu sent a trip to find a related article. After research, it is actually just a change. Change the original driver manager to: class.forname ("org.gjt.mm.mysql.driver); the following code can be used as a reference:
helloWorld.jsp </ title> < / head> <body> <% @ page language = "java" import = "java.sql. *"%> <% try {class.forname ("org.gjt.mm.mysql.driver); Out.println ("Success Loading MySQL Driver!");} Catch (exception e) {Out.print ("Error Loading MySQL Driver!"); E.PrintStackTrace ();}</p>
<p>Try {Connection Connect = DriverManager.getConnection ("JDBC: MySQL: // LocalHost / JDBCTEST", "UserID", "Password"); Out.print ("Success Connect MySQL Server!");</p>
<p>Statement Stmt = Connect.createStatement (); ResultSet RS = Stmt.executeQuery ("SELECT * FROM EMPLOYEES"); while (rs.next ()) {Out.Println (rs.getint (1)); Out.Println (RS .getstring (2)); OUT.PRINTLN (Rs.Getint (3)); Out.Println (Rs.Getint (4));</p>
<p>}}}} Catch (exception e) {Out.print ("get Data Error!"); E.PrintStackTrace ();}%></p>
<p></ body> </ html> Note: MySQL's JDBC driver download can refer to my previous article to copy the JAR file to common / lib under the Tomcat installation directory (I use Tomcat server, other types of other types I didn't work on the server).</p></div><div class="text-center mt-3 text-grey">
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