1. Test Sybase JCONNECT-5_2 JDBC with a JSP file
Database interface:
<% @ Page ContentType = "text / html; charset = GB2312"%>
<% @ Page Import = "java.sql. *"%>
JSP Test Sybase JCONNECT-5_2 JDBC Database Interface </ Title></p>
<p><Meta name = "generator" content = "editplus2.11"></p>
<p><Meta name = "author" content = "naxin"></p>
<p></ HEAD></p>
<p><Body></p>
<p><Center> JSP Test Sybase JCONNECT-5_2 JDBC Database Interface </ center></p>
<p><BR> <BR></p>
<p><table border = 3 align = center></p>
<p><%</p>
<p>Class.Forname ("com.sybase.jdbc2.jdbc.sybdriver);</p>
<p>String URL = "JDBC: Sybase: TDS: Localhost: 2638";</p>
<p>Connection conn = drivermanager.getConnection (URL, "DBA", "SQL");</p>
<p>Statement Stmt = conn.createstatement ();</p>
<p>String SQL = "SELECT EMP_LNAME, DEPT_ID, STREET, CITY, State from Employee Order By EMP_LNAME";</p>
<p>ResultSet RS = Stmt.executeQuery (SQL);</p>
<p>While (rs.next ()) {</p>
<p>Out.print ("<tr> <td>" gtstring ("EMP_LNAME") "</ td>");</p>
<p>Out.print ("<TD>" rs.getstring ("dept_id") "</ td>");</p>
<p>Out.print ("<TD>" rs.getstring ("street") "</ td>");</p>
<p>Out.print ("<TD>" RS.GetString ("City") "</ td>");</p>
<p>Out.print ("<TD>" rs.getstring ("state") "</ td> </ tr>");</p>
<p>}</p>
<p>%></p>
<p></ TABLE></p>
<p><br> <hr></p>
<p><% out.print ("Database Success, Congratulations");%></p>
<p><%</p>
<p>Rs.close ();</p>
<p>Stmt.close ();</p>
<p>CONN.CLOSE ();</p>
<p>%></p>
<p></ Body></p>
<p></ Html></p>
<p>2. Use JSP and Java Beans:</p>
<p>JSP code:</p>
<p><% @ Page ContentType = "Text / HTML; Charset = GB2312"%> <% @ Page Import = "Java.sql. *"%></p>
<p><Html></p>
<p><HEAD></p>
<p><Title> </ title></p>
<p><Meta name = "generator" content = "editplus2.11"></p>
<p><Meta name = "author" content = "naxin"></p>
<p></ HEAD></p>
<p><Body></p>
<p><jsp: usebean id = "Sybase" scope = "page" class = "test.sybconn" /></p>
<p><%</p>
<p>ResultSet RS = Sybase.Query ("Select * from tjck_dh");</p>
<p>While (rs.next ()) {</p>
<p>Out.print ("|" rs.getstring ("name") "|");</p>
<p>Out.print (Rs.getstring ("CARD_NO") "|");</p>
<p>Out.print (Rs.getstring ("Amount") "|");</p>
<p>Out.print (rs.getstring ("home_call") "|");</p>
<p>Out.print (rs.getstring ("office_call") "| <br>");</p>
<p>}</p>
<p>Rs.close ();</p>
<p>%></p>
<p><Hr></p>
<p>BEAN code:</p>
<p>Package test;</p>
<p>Import java.sql. *;</p>
<p>Public class sybconn {</p>
<p>// String sdbdriver = "com.sybase.jdbc2.jdbc.sybdriver";</p>
<p>String sconnstr = "JDBC: SYBASE: TDS: LOCALHOST: 2638";</p>
<p>// String user = "dba";</p>
<p>// String passwd = "sql";</p>
<p>Connection conn = NULL;</p>
<p>ResultSet RS = NULL;</p>
<p>Public ResultSet Query (String SQL) throws Sqlexception, Exception {</p>
<p>Class.Forname ("com.sybase.jdbc2.jdbc.sybdriver"). NewInstance ();</p>
<p>CONN = DriverManager.getConnection (Sconnstr, "DBA", "SQL");</p>
<p>Statement Stmt = conn.createstatement ();</p>
<p>RS = stmt.executequery (SQL);</p>
<p>Return RS;</p>
<p>}</p>
<p>}</p>
<p>3.</p>
<p>Query the graphical Java program of data in Sybase ASA7.0 using JDBC (Sybae JConnect-5_2):</p>
<p>//</p>
<p>// A simple use of JDBC (Sybae JConnect-5_2) querying the graphical Java program example of data in Sybase ASA7.0</p>
<p>// The SQL statement that is executed is "Select * from Employee", which can be changed to yourself .// operation mode is: C: /> Java JDBCTEST</p>
<p>//</p>
<p>Import java.awt. *;</p>
<p>Import java.sql. *; // must introduce Java's SQL package before using JDBC</p>
<p>Class JDBCTEST EXTENDS FRAME {</p>
<p>Textarea mytextarea;</p>
<p>Public JDBCTEST () {</p>
<p>// Set the display interface of the program</p>
<p>Super ("A simple use of JDBC (JCONNECT-5_2) querying the graphical Java program example of data in Sybase ASA7.0");</p>
<p>SetLayout (New FlowLayout ());</p>
<p>Mytextarea = New Textarea (30, 80);</p>
<p>Add (MyTextArea);</p>
<p>Resize (500, 500);</p>
<p>SHOW ();</p>
<p>MytextArea.AppendText ("Database query, please wait ... / N");</p>
<p>}</p>
<p>Void DisplayResults (ResultSet Results) throws sqlexception {</p>
<p>// First get information about the results of the query</p>
<p>ResultSetMetadata ResultsMetAdata = Results.getMetadata ();</p>
<p>INT cols = resultmetadata.getcolumncount ();</p>
<p>// Waiting for information to clear</p>
<p>mytextArea.setText ("");</p>
<p>//show result</p>
<p>WHILE (results.next ()) {</p>
<p>For (INT i = 1; i <= cols; i ) {</p>
<p>IF (i> 1)</p>
<p>MytextArea.AppendText ("/ t");</p>
<p>Try {</p>
<p>MytextArea.AppendText (Results.getstring (i));</p>
<p>}</p>
<p>// An abnormality generated when capturing null values</p>
<p>Catch (nullpointersexception e) {</p>
<p>}</p>
<p>}</p>
<p>MytextArea.AppendText ("/ n");</p>
<p>}</p>
<p>}</p>
<p>Public Boolean Handleevent (Event EVT) {</p>
<p>IF (evt.id == Event.window_destroy) {</p>
<p>System.exit (0);</p>
<p>Return True;</p>
<p>}</p>
<p>Return super.handleevent (evt);</p>
<p>}</p>
<p>Public static void main (string argv []) throws Sqlexception, Exception {</p>
<p>/ / Set the query string</p>
<p>String querystring = "select * from employee";</p>
<p>JDBCTEST myjdbctest = new jdbctest ();</p>
<p>// Load the driver</p>
<p>Class.Forname ("com.sybase.jdbc2.jdbc.sybdriver"). NewInstance ();</p>
<p>// Establish a connection, localhost is the host name, DBA is the user name, SQL is a password</p>
<p>Connection myconn = drivermanager.getConnection ("JDBC: Sybase: TDS: localhost: 2638", "dba", "sql");</p>
<p>Statement myStmt = myconn.createstatement ();</p>
<p>// Execute Query</p>
<p>ResultSet myresults = mystmt.executequery (querystring);</p>
<p>Myjdbctest.displayResults (MyResults); // Close all open resources</p>
<p>MyResults.close ();</p>
<p>MyStmt.close ();</p>
<p>MyConn.close ();</p>
<p>}</p>
<p>}</p></div><div class="text-center mt-3 text-grey">
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