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How to access MySQL Database Using JSP

Source: Internet
Author: User
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<% @ Page import = "java. SQL .*"
Import = "java. util .*"
Import = "java. io .*"
ContentType = "text/html; charset = gb2312"
%>
<Html>
<Head>
<Title> use a MYsql database </title>
<Meta name = "GENERATOR" content = "Microsoft FrontPage 4.0">
<Meta name = "ProgId" content = "FrontPage. Editor. Document">
</Head>
<Body>
<P align = "center"> <u> <font size = "5" face = "文 "> use JSP to read Mysql Databases </font> </u> </p>
<%!
String host = "localhost"; // Database host
String database = "pinghui"; // database Name
String user = "test"; // user Name
String pass = ""; // Password
%> <% Java. SQL. Connection sqlConn; // database Connection object
Java. SQL. Statement sqlStmt; // Statement object
Java. SQL. ResultSet sqlRst; // result set object
// Register the JDBC driver object
Class. forName ("org. gjt. mm. mysql. Driver"). newInstance ();
// Connect to the database
SqlConn = java. SQL. DriverManager. getConnection ("jdbc: mysql: //" + host + "/" + database, user, pass );
// Create a statement object
SqlStmt = sqlConn. createStatement (java. SQL. ResultSet. TYPE_SCROLL_INSENSITIVE, java. SQL. ResultSet. CONCUR_READ_ONLY );
// Execute the SQL statement
String sqlQuery = "select count (*) from comment ";
SqlRst=sqlStmt.exe cuteQuery (sqlQuery );
SqlRst. next ();
Int count = sqlRst. getInt (1); // obtain the total number of message records
SqlQuery = "select * from comment order by userid desc ;";
SqlRst=sqlStmt.exe cuteQuery (sqlQuery); // execute an SQL statement
%>
There are <% = count %> messages in total
<Table border = "1" width = "100%" bordercolorlight = "# CC99FF" cellpadding = "2" bordercolordark = "# FFFFFF" cellspacing = "0">
<Tr>
<Td align = "center"> ID </td>
<Td align = "center"> nickname </td>
<Td align = "center"> gender </td>
<Td align = "center"> address </td>
<Td align = "center"> ip address </td>
<Td align = "center"> zip code </td>
<Td align = "center"> Oicq </td>
<Td align = "center"> ICQ </td>
<Td align = "center"> phone number </td>
<Td align = "center"> message </td>
<Td align = "center"> time </td>
</Tr>
<% While (sqlRst. next () {// get the next record %>
<Tr> <! -- Display record -->
<Td> <% = sqlRst. getString ("userid") %> </td>
<Td> <% = sqlRst. getString ("username") %> </td>
<Td> <% = sqlRst. getString ("sex") %> </td>
<Td> <% = sqlRst. getString ("address") %> </td>
<Td> <% = sqlRst. getString ("ip") %> </td>
<Td> <% = sqlRst. getString ("post") %> </td>
<Td> <% = sqlRst. getString ("oicq") %> </td>
<Td> <% = sqlRst. getString ("icq") %> </td>
<Td> <% = sqlRst. getString ("telnumber") %> </td>
<Td> <% = sqlRst. getString ("comment") %> </td>
<Td> <% = sqlRst. getString ("time") %> </td>
</Tr>
<% }%>
</Table>
</Body>
<%
// Close the result set object
SqlRst. close ();
// Close the statement object
SqlStmt. close ();
// Close the database connection
SqlConn. close ();
%>

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