标签:lang let try auto exception config 情况 output format
com.fasterxml.jackson.databind.ObjectMapper
在读取输入流变量的时候默认的将会关闭输入流。
如果你不希望关闭输入流,你可以设置 JsonParser.Feature.AUTO_CLOSE_SOURCE
参数为 false。
/** * Serialization Not Close input stream */ @Test public void testMessagePackSerializationNotCloseInputStream() { logger.debug("testMessagePackSerializationNotCloseInputStream"); try { File tempFile = File.createTempFile("messagepack-", "-cwiki.us"); MessagePacker packer = MessagePack.newDefaultPacker(new FileOutputStream(tempFile)); packer.packInt(42); packer.packString("Hello"); packer.close(); FileInputStream in = new FileInputStream(tempFile); ObjectMapper objectMapper = new ObjectMapper(new MessagePackFactory()); objectMapper.configure(JsonParser.Feature.AUTO_CLOSE_SOURCE, false); System.out.println(objectMapper.readValue(in, Integer.class)); System.out.println(objectMapper.readValue(in, String.class)); in.close(); tempFile.deleteOnExit(); } catch (IOException ex) { logger.error("Serialize Error", ex); } }
https://www.cwiki.us/display/Serialization/MessagePack+Jackson+Dataformat
MessagePack Java Jackson 在不关闭输入流(input stream)的情况下反序列化多变量
标签:lang let try auto exception config 情况 output format
原文地址:https://www.cnblogs.com/huyuchengus/p/11330362.html