CREATE TABLE T_EXTERIOR  (    "ID" INTEGER NOT NULL ,      "EXTERIOR" BLOB(1048576) LOGGED NOT COMPACT NOT NULL )   

        Exterior exterior = new Exterior();                ObjectOutputStream oos;        try {            //生成序列化好后的文件            oos = new ObjectOutputStream(new FileOutputStream(new File("aa.tmp")));            oos.writeObject(exterior);            oos.flush();            oos.close();                        //读取序列化好后的文件并保存到数据库中            InputStream is = new FileInputStream(new File("aa.tmp"));            ByteArrayOutputStream out = new ByteArrayOutputStream();            int size = 0;            byte[] buffer = new byte[1024];            while((size=is.read(buffer))!=-1){                out.write(buffer, 0, size);            }            final byte[] bt = out.toByteArray();                        String sql = "insert into T_EXTERIOR(ID,EXTERIOR) VALUES(?,?)";            jdbcTemplate.update(sql, new PreparedStatementSetter() {                public void setValues(PreparedStatement ps) throws SQLException {                    ps.setInt(1, 1);                    ps.setBytes(2, bt);                }            });        } catch (Exception e) {            e.printStackTrace();            result = "false";        }

import java.io.Serializable;public class Exterior implements Serializable{    private static final long serialVersionUID = 1L;    public int add(int ys, int csd,int jg,int sf,int yf,int sd){        return ys+csd+jg+sf+yf+sd;    }}

String sql = "select EXTERIOR from T_EXTERIOR where id=1";InputStream ins = null;try{    Connection con = jdbcTemplate.getDataSource().getConnection();    Statement ps = con.createStatement();    ResultSet rs = ps.executeQuery(sql);    while(rs.next()){        Blob blob = rs.getBlob("EXTERIOR");        ins = blob.getBinaryStream();    }        ObjectInputStream ois = new ObjectInputStream(ins);    Object o = ois.readObject();    Method[] methods = o.getClass().getMethods();    for(Method method : methods){        if(method.getName().equals("add")){            Class[] css = method.getParameterTypes();            Object[] params = new Object[css.length];            params[0] = ys;            params[1] = csd;            params[2] = jg;            params[3] = sf;            params[4] = yf;            params[5] = sd;            /**            int index = 0;            for(Class cs : css){                if(String.class == cs){                    params[index++] = "String val is :" + index;                }            }*/            Object rt = method.invoke(o, params);            if(rt.getClass() == Integer.class){                result = String.valueOf((Integer)rt);            }else if(rt.getClass()==String.class){                result = (String)rt;            }        }    }}catch (Exception e) {    e.printStackTrace();}