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。
本测试方法,可以在 https://github.com/cwiki-us-demo/serialize-deserialize-demo-java/blob/master/src/test/java/com/insight/demo/serialize/MessagePackSerializer.java 中找到。
/** * 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
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