mysql存取图片

存入：

		Connection conn = DBFactory.getTourie();

		 FileInputStream str = new FileInputStream("d:/aa.jpg");
				
		 String sql= "insert into test_img(filename,content)   values(?,?) ";
				
		 PreparedStatement pstmt= conn.prepareStatement(sql);
		 pstmt.setString(1,"aaa");
		 pstmt.setBinaryStream(2,str,str.available());
		 pstmt.execute();
				
		 pstmt.close();

读取：

String   sql   =   "select content from  test_img   where   id=1 ";   
		PreparedStatement   pstmt =null;   
		ResultSet  rs=null;   
			pstmt=conn.prepareStatement(sql); 
			
			rs=pstmt.executeQuery(sql);  
			
			while(rs.next())   {   
				InputStream   in   =   rs.getBinaryStream(1); 
				FileOutputStream fos = new FileOutputStream("e://aa.jpg");
				int temp = in.read();
				while(temp != -1) {
					fos.write(temp);
					temp = in.read();
				}
				fos.close();
				in.close();
			}
			rs.close();
			pstmt.close();
			
			conn.close();