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JSP reads large object CLOB and generates an XML file sample

Source: Internet
Author: User
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Js|xml| Object | Generate xml| Sample <%@ page contenttype= "text/html; charset=gb2312 "%>
<%@ page info= "Database handler"%>
<%@ page import= "java.io.*"%>
<%@ page import= "java.net.*"%>
<%@ page import= "java.lang.*"%>
<%@ page import= "java.util.*"%>
<%@ page import= "java.sql.*"%>
<%@ page import= "javax.servlet.*"%>
<%@ page import= "javax.servlet.http.*"%>
<%@ page import= "Oracle.sql.CLOB"%>
<%@ page import= "Oracle.jdbc.driver.OracleResultSet"%>

<meta content= "text/html; charset=gb2312 "http-equiv=" Content-type ">
<body>
<%
int i=0;
String Parid = Request.getparameter ("Id_no");
String strSQL;
String content= "";

try{
String xmlFile = "/usr/local/tomcat/webapps/vehicles/test.xml";

Class.forName ("Sun.jdbc.odbc.JdbcOdbcDriver");
String dburl= "JDBC:ORACLE:THIN:@192.168.15.250:1521:YCDB";
Connection con=drivermanager.getconnection (Dburl, "training", "Deep1704sea");
Statement stmt=con.createstatement ();

To read a CLOB or BLOB column using a stream
strSQL = "Select Xmlgen.getxml (' select * from Account_holder where id_no= ' 0001 ') from dual";
ResultSet rs=stmt.executequery (strSQL);
if (Rs.next ()) {
CLOB CLOB = ((Oracleresultset) RS). Getclob (1);
if (clob!=null) {
Reader is = Clob.getcharacterstream ();
BufferedReader br = new BufferedReader (IS);
String s = br.readline ();
while (S!=null) {
byte[] temp = s.getbytes ("iso-8859-1");
s = new String (temp);
Content = = s;
S=br.readline ();
}
}
}
OUT.PRINTLN (content);

Write content that is read from the database to a file
FileOutputStream fo = new FileOutputStream (xmlFile);
PrintStream so = new PrintStream (FO);
SO.PRINTLN (content);
So.close ();

Rs.close ();
Stmt.close ();
Con.close ();

}catch (Exception e) {
Out.println (e);
}
%>
</body>



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