oracle存储过程，可以通过sqlcode 获取异常编码、通过sqlerrm获取异常信息。

例子：

create or replace procedure write2blob(p_id        in number, --id                                       p_blob_data in blob,                                       p_msg       out varchar2) --数据 is  v_lobloc     blob; --目标blob字段  v_blob_data  blob; --作为接受参数的字段，参数变量不能直接拿来赋值  v_amount     binary_integer; --总长度  v_sub_length binary_integer; --一次读取的最大长度，不超过32766  v_sub_blob   blob; --一次读取的子串  v_offset     binary_integer; --游标  v_err_msg    varchar2(1000); --测试用  v_id         binary_integer; --要修改或新增的记录ID  v_temp       binary_integer; --临时变量用于判断是否有v_id对应的记录begin  v_amount     := length(p_blob_data);  v_blob_data  := p_blob_data;  v_sub_length := 32767;  v_offset     := 1;  v_id         := p_id;  v_temp       := 0;  --execute immediate v_query_string into v_lobloc;  select count(1) into v_temp from a where id = v_id;  --查询是否有v_id对应的记录，并且赋值给v_temp  /*注意：无论是修改还是新增，blob字段都需要用empty_blob()进行初始化，否则后边的blob内容，不能写进表里*/  /***************************这里为了演示异常信息，把if else判断给注释掉了********************/  /*if v_temp = 0 then    insert into a (id, img) values (v_id, empty_blob()); --如果v_temp为0新增  else    update a set img = empty_blob() where id = v_id; --如果v_temp为1修改  end if;  */  commit;  select img into v_lobloc from a where id = v_id for update;  if v_amount > v_sub_length then    --dbms_lob.open(v_lobloc, dbms_lob.lob_readwrite);    while v_offset < v_amount loop      dbms_lob.read(v_blob_data, v_sub_length, v_offset, v_sub_blob); --把读到的内容放到v_sub_blob中      dbms_lob.writeappend(v_lobloc,                           --DBMS_LOB.GETLENGTH(v_sub_blob),                           length(v_sub_blob),                           v_sub_blob); --写入v_lobloc,该变量已经在之前和sql语句绑定      v_offset  := length(v_sub_blob) + v_offset; --游标移动      v_err_msg := length(v_lobloc);    end loop;  else    dbms_lob.writeappend(v_lobloc, v_amount, v_blob_data); --若是小鱼32766直接写入  end if;  commit;  dbms_lob.close(v_lobloc);exception  when others then    p_msg := sqlcode || sqlerrm;    --p_msg := v_err_msg;    rollback;end;

调用java代码

public static void main(String[] args) {		final Connection srcConn = DbUtil.getOracleConnection("c##sjzjy", "sjzjy", "192.168.23.60", "orcl");		final QueryRunner srcOracle = new QueryRunner();		final Connection wsConn = DbUtil.getOracleConnection("c##sjzjy", "sjzjy", "192.168.23.60", "orcl");		try {			srcOracle.query(srcConn, " select img from a where id = 1 ", new ResultSetHandler(){				@Override				public Img handle(ResultSet rs) throws SQLException {					while(rs.next()) {						Blob blob = rs.getBlob("IMG");						try {							String img = new String(blob.getBytes((long)1, (int)blob.length()), "ISO8859-1");//							String sql = "insert into a(img) values(?) ";//							PreparedStatement stmt = wsConn.prepareStatement(sql);//							stmt.setBytes(1, img.getBytes("ISO8859-1"));//							stmt.executeUpdate();							String sql = "call write2blob(?,?,?)";							CallableStatement ps = wsConn.prepareCall(sql);							ps.setInt(1, 8);							//ps.setBlob(2, blob);							ps.setBytes(2, img.getBytes("ISO8859-1"));							ps.registerOutParameter(3, Types.VARCHAR);							ps.execute();							String str = ps.getString(3);							System.out.println(str);						} catch (Exception e) {							e.printStackTrace();						} 					}					return null;				}});		} catch (Exception e) {			e.printStackTrace();		}	}

会在控制台输出异常编码和异常信息了