Tue, 17 Oct 2006 04:32:00 GMT

配置文�g�Q?/strong>
         privileged="true" antiResourceLocking="false" antiJARLocking="false">
     type="javax.sql.DataSource"
    maxActive="100" maxIdle="30" maxWait="10000"
    username="root" password=""
    driverClassName="com.mysql.jdbc.Driver"
    url="jdbc:mysql://localhost:3306/blogdb?autoReconnect=true"/>

调用方式:
Context ctx = null ;
Connection conn = null;
Statement stmt = null ;
ResultSet rs = null;
try{
  ctx = new InitialContext();
  if( ctx == null) throw new Exception("没有匚w��的环�?");
  DataSource ds = (DataSource)ctx.lookup("java:comp/env/jdbc/blogdb");
  if( ds == null ) throw new Exception("没有匚w��的数据库!");
  conn = ds.getConnection();
  stmt = conn.createStatement();
  rs = stmt.executeQuery(" select * from tbl_blog");
  while(rs.next()){
   out.print(rs.getString(2));
  }

}catch(Exception e){
  e.printStackTrace();
}finally{
  if(rs!=null) rs.close();
  if(stmt!=null) stmt.close();
  if(conn!=null) conn.close();
  if(ctx!=null) ctx.close();
}

蒋利�?/a> 2006-10-17 12:32 发表评论

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