Oracle 读取CLOB类型的数据无法返回值 about apijson HOT 5 CLOSED

    else if(value instanceof CLOB) {
                    StringBuffer sb = new StringBuffer(); 
                    BufferedReader br = new BufferedReader(((CLOB) value).getCharacterStream()); 
                    String s = br.readLine();
                    while (s != null) {
                        sb.append(s); 
                        s = br.readLine(); 
                    }
                    value = sb.toString();
                }

			if (value instanceof Timestamp) {
				value = ((Timestamp) value).toString();
			}

			if (value instanceof CLOB) {
				value = ((CLOB) value).toString();
			}