2 * Copyright (C) 2016 ZTE, Inc. and others. All rights reserved. (ZTE)
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4 * Licensed under the Apache License, Version 2.0 (the "License");
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5 * you may not use this file except in compliance with the License.
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6 * You may obtain a copy of the License at
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8 * http://www.apache.org/licenses/LICENSE-2.0
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10 * Unless required by applicable law or agreed to in writing, software
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11 * distributed under the License is distributed on an "AS IS" BASIS,
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12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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13 * See the License for the specific language governing permissions and
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14 * limitations under the License.
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17 package org.openo.msb.wrapper.util;
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19 import java.util.List;
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21 import org.openo.msb.api.ApiRouteInfo;
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22 import org.openo.msb.api.RouteServer;
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23 import org.slf4j.Logger;
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24 import org.slf4j.LoggerFactory;
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26 import com.fasterxml.jackson.core.type.TypeReference;
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27 import com.fasterxml.jackson.databind.ObjectMapper;
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28 import com.fasterxml.jackson.databind.SerializationFeature;
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31 public class JacksonJsonUtil {
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33 private static final Logger logger = LoggerFactory.getLogger(JacksonJsonUtil.class);
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35 private static ObjectMapper mapper;
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38 public static synchronized ObjectMapper getMapperInstance() {
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39 if (mapper == null) {
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40 mapper = new ObjectMapper();
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46 * from java object to json
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49 * @throws Exception
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51 public static String beanToJson(Object obj) throws Exception {
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54 ObjectMapper objectMapper = getMapperInstance();
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55 objectMapper.configure(SerializationFeature.WRITE_DATES_AS_TIMESTAMPS, false);
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56 json =objectMapper.writeValueAsString(obj);
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57 } catch (Exception e) {
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58 logger.error("Class beanToJson faild");
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59 throw new Exception("Class beanToJson faild");
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67 * from json to java object
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71 * @throws Exception
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73 public static Object jsonToBean(String json, Class<?> cls) throws Exception {
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76 ObjectMapper objectMapper = getMapperInstance();
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77 objectMapper.configure(SerializationFeature.WRITE_DATES_AS_TIMESTAMPS, false);
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78 vo = objectMapper.readValue(json, cls);
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80 } catch (Exception e) {
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81 logger.error(cls+" JsonTobean faild");
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82 throw new Exception(cls+" JsonTobean faild");
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88 * from json to java List
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91 * @throws Exception
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93 public static List<ApiRouteInfo> jsonToListBean(String json) throws Exception {
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94 List<ApiRouteInfo> vo =null;
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97 ObjectMapper objectMapper = getMapperInstance();
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100 vo = objectMapper.readValue(json, new TypeReference<List<ApiRouteInfo>>() {});
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102 } catch (Exception e) {
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103 throw new Exception( "JSON_TO_BEAN_FAILD");
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108 public static void main(String[] args) {
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109 RouteServer server=new RouteServer("127.0.0.1","80");
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111 String json=beanToJson(server);
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112 System.out.println(json);
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113 } catch (Exception e) {
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114 // TODO Auto-generated catch block
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115 e.printStackTrace();
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