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dcs-sdk-java-master/app/src/main/java/com/baidu/duer/dcs/util/ObjectMapperUtil.java@45:2aa9f933c8d2, 2017-07-18 (annotated)

Committer:
TMBOY
Date:
Tue Jul 18 16:34:48 2017 +0800
Revision:
45:2aa9f933c8d2
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Who changed what in which revision?

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TMBOY 45:2aa9f933c8d2 1 /*
TMBOY 45:2aa9f933c8d2 2 * Copyright (c) 2017 Baidu, Inc. All Rights Reserved.
TMBOY 45:2aa9f933c8d2 3 *
TMBOY 45:2aa9f933c8d2 4 * Licensed under the Apache License, Version 2.0 (the "License");
TMBOY 45:2aa9f933c8d2 5 * you may not use this file except in compliance with the License.
TMBOY 45:2aa9f933c8d2 6 * You may obtain a copy of the License at
TMBOY 45:2aa9f933c8d2 7 *
TMBOY 45:2aa9f933c8d2 8 * http://www.apache.org/licenses/LICENSE-2.0
TMBOY 45:2aa9f933c8d2 9 *
TMBOY 45:2aa9f933c8d2 10 * Unless required by applicable law or agreed to in writing, software
TMBOY 45:2aa9f933c8d2 11 * distributed under the License is distributed on an "AS IS" BASIS,
TMBOY 45:2aa9f933c8d2 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
TMBOY 45:2aa9f933c8d2 13 * See the License for the specific language governing permissions and
TMBOY 45:2aa9f933c8d2 14 * limitations under the License.
TMBOY 45:2aa9f933c8d2 15 */
TMBOY 45:2aa9f933c8d2 16 package com.baidu.duer.dcs.util;
TMBOY 45:2aa9f933c8d2 17
TMBOY 45:2aa9f933c8d2 18 import org.codehaus.jackson.map.DeserializationConfig;
TMBOY 45:2aa9f933c8d2 19 import org.codehaus.jackson.map.ObjectMapper;
TMBOY 45:2aa9f933c8d2 20 import org.codehaus.jackson.map.ObjectReader;
TMBOY 45:2aa9f933c8d2 21 import org.codehaus.jackson.map.ObjectWriter;
TMBOY 45:2aa9f933c8d2 22 import org.codehaus.jackson.map.SerializationConfig;
TMBOY 45:2aa9f933c8d2 23
TMBOY 45:2aa9f933c8d2 24 import java.io.IOException;
TMBOY 45:2aa9f933c8d2 25
TMBOY 45:2aa9f933c8d2 26 /**
TMBOY 45:2aa9f933c8d2 27 * json序列化成对象和反序列化
TMBOY 45:2aa9f933c8d2 28 *
TMBOY 45:2aa9f933c8d2 29 * Created by wuruisheng on 2017/5/15.
TMBOY 45:2aa9f933c8d2 30 */
TMBOY 45:2aa9f933c8d2 31 public class ObjectMapperUtil {
TMBOY 45:2aa9f933c8d2 32 private static ObjectMapper objectMapper;
TMBOY 45:2aa9f933c8d2 33
TMBOY 45:2aa9f933c8d2 34 private static class ObjectMapperFactoryHolder {
TMBOY 45:2aa9f933c8d2 35 private static final ObjectMapperUtil instance = new ObjectMapperUtil();
TMBOY 45:2aa9f933c8d2 36 }
TMBOY 45:2aa9f933c8d2 37
TMBOY 45:2aa9f933c8d2 38 public static ObjectMapperUtil instance() {
TMBOY 45:2aa9f933c8d2 39 return ObjectMapperFactoryHolder.instance;
TMBOY 45:2aa9f933c8d2 40 }
TMBOY 45:2aa9f933c8d2 41
TMBOY 45:2aa9f933c8d2 42 private ObjectMapperUtil() {
TMBOY 45:2aa9f933c8d2 43 objectMapper = new ObjectMapper();
TMBOY 45:2aa9f933c8d2 44 objectMapper.configure(DeserializationConfig.Feature.FAIL_ON_UNKNOWN_PROPERTIES, false);
TMBOY 45:2aa9f933c8d2 45 objectMapper.configure(SerializationConfig.Feature.WRITE_DATES_AS_TIMESTAMPS, false);
TMBOY 45:2aa9f933c8d2 46 objectMapper.configure(SerializationConfig.Feature.FAIL_ON_EMPTY_BEANS, false);
TMBOY 45:2aa9f933c8d2 47 }
TMBOY 45:2aa9f933c8d2 48
TMBOY 45:2aa9f933c8d2 49 public ObjectReader getObjectReader() {
TMBOY 45:2aa9f933c8d2 50 return objectMapper.reader();
TMBOY 45:2aa9f933c8d2 51 }
TMBOY 45:2aa9f933c8d2 52
TMBOY 45:2aa9f933c8d2 53 public ObjectReader getObjectReader(Class<?> clazz) {
TMBOY 45:2aa9f933c8d2 54 return objectMapper.reader().withType(clazz);
TMBOY 45:2aa9f933c8d2 55 }
TMBOY 45:2aa9f933c8d2 56
TMBOY 45:2aa9f933c8d2 57 public ObjectWriter getObjectWriter() {
TMBOY 45:2aa9f933c8d2 58 return objectMapper.writer();
TMBOY 45:2aa9f933c8d2 59 }
TMBOY 45:2aa9f933c8d2 60
TMBOY 45:2aa9f933c8d2 61
TMBOY 45:2aa9f933c8d2 62 public String objectToJson(Object obj) {
TMBOY 45:2aa9f933c8d2 63 String result = "";
TMBOY 45:2aa9f933c8d2 64 try {
TMBOY 45:2aa9f933c8d2 65 result = getObjectWriter().writeValueAsString(obj);
TMBOY 45:2aa9f933c8d2 66 } catch (IOException e) {
TMBOY 45:2aa9f933c8d2 67 e.printStackTrace();
TMBOY 45:2aa9f933c8d2 68 }
TMBOY 45:2aa9f933c8d2 69 return result;
TMBOY 45:2aa9f933c8d2 70 }
TMBOY 45:2aa9f933c8d2 71 }