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jsp讀取大對(duì)象CLOB并生成xml文件示例

 更新時(shí)間：2006年10月13日 00:00:00   作者：  

<%@ 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"%>

<html>
<head>
<meta content="text/html; charset=gb2312" http-equiv="content-type">
</head>
<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();

//使用流讀取CLOB或BLOB列
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);

//將從數(shù)據(jù)庫(kù)中讀出的內(nèi)容寫(xiě)到文件中
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>
</html>

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