本文整理了Java中com.fasterxml.jackson.databind.ObjectMapper.treeToValue()方法的一些代码示例，展示了ObjectMapper.treeToValue()的具体用法。这些代码示例主要来源于Github/Stackoverflow/Maven等平台，是从一些精选项目中提取出来的代码，具有较强的参考意义，能在一定程度帮忙到你。ObjectMapper.treeToValue()方法的具体详情如下：
包路径：com.fasterxml.jackson.databind.ObjectMapper
类名称：ObjectMapper
方法名：treeToValue

ObjectMapper.treeToValue介绍

[英]Convenience conversion method that will bind data given JSON tree contains into specific value (usually bean) type.

Functionally equivalent to:

objectMapper.convertValue(n, valueClass);

[中]

代码示例

代码示例来源：origin: aws/aws-sdk-java

@Override
public BaseException unmarshall(JsonNode jsonContent) throws Exception {
  return MAPPER.treeToValue(jsonContent, exceptionClass);
}

代码示例来源：origin: aws/aws-sdk-java

@Override
public AmazonServiceException unmarshall(JsonNode jsonContent) throws Exception {
  return MAPPER.treeToValue(jsonContent, exceptionClass);
}

代码示例来源：origin: jenkinsci/gitlab-plugin

public static <T> T read(JsonNode json, Class<T> type) {
  try {
    return OBJECT_MAPPER.treeToValue(json, type);
  } catch (IOException e) {
    throw new RuntimeException(e);
  }
}

代码示例来源：origin: linlinjava/litemall

public static <T> T parseObject(String body, String field, Class<T> clazz) {
  ObjectMapper mapper = new ObjectMapper();
  JsonNode node = null;
  try {
    node = mapper.readTree(body);
    node = node.get(field);
    return mapper.treeToValue(node, clazz);
  } catch (IOException e) {
    e.printStackTrace();
  }
  return null;
}

代码示例来源：origin: allure-framework/allure2

private Optional<CategoriesTrendItem> parseItem(final Path historyFile,
                        final ObjectMapper mapper,
                        final JsonNode child) {
  try {
    return Optional.ofNullable(mapper.treeToValue(child, CategoriesTrendItem.class));
  } catch (JsonProcessingException e) {
    LOGGER.warn("Could not read {}", historyFile, e);
    return Optional.empty();
  }
}

代码示例来源：origin: allure-framework/allure2

private Optional<RetryTrendItem> parseItem(final Path historyFile,
                      final ObjectMapper mapper,
                      final JsonNode child) {
  try {
    return Optional.ofNullable(mapper.treeToValue(child, RetryTrendItem.class));
  } catch (JsonProcessingException e) {
    LOGGER.warn("Could not read {}", historyFile, e);
    return Optional.empty();
  }
}

代码示例来源：origin: allure-framework/allure2

private Optional<DurationTrendItem> parseItem(final Path historyFile,
                       final ObjectMapper mapper,
                       final JsonNode child) {
  try {
    return Optional.ofNullable(mapper.treeToValue(child, DurationTrendItem.class));
  } catch (JsonProcessingException e) {
    LOGGER.warn("Could not read {}", historyFile, e);
    return Optional.empty();
  }
}

代码示例来源：origin: rampatra/jbot

@JsonSetter("user")
public void setUser(JsonNode jsonNode) {
  if (jsonNode.isObject()) {
    try {
      this.user = new ObjectMapper().treeToValue(jsonNode, User.class);
    } catch (JsonProcessingException e) {
      logger.error("Error deserializing json: ", e);
    }
  } else if (jsonNode.isTextual()) {
    this.userId = jsonNode.asText();
  }
}

代码示例来源：origin: rampatra/jbot

@JsonSetter("channel")
public void setChannel(JsonNode jsonNode) {
  if (jsonNode.isObject()) {
    try {
      this.channel = new ObjectMapper().treeToValue(jsonNode, Channel.class);
    } catch (JsonProcessingException e) {
      logger.error("Error deserializing json: ", e);
    }
  } else if (jsonNode.isTextual()) {
    this.channelId = jsonNode.asText();
  }
}

代码示例来源：origin: jmxtrans/jmxtrans

/**
   * Uses jackson to load json configuration from a File into a full object
   * tree representation of that json.
   */
  public JmxProcess parseProcess(File file) throws IOException {
    String fileName = file.getName();
    ObjectMapper mapper = fileName.endsWith(".yml") || fileName.endsWith(".yaml") ? yamlMapper : jsonMapper;
    JsonNode jsonNode = mapper.readTree(file);
    JmxProcess jmx = mapper.treeToValue(jsonNode, JmxProcess.class);
    jmx.setName(fileName);
    return jmx;
  }
}

代码示例来源：origin: rampatra/jbot

@JsonSetter("file")
public void setFile(JsonNode jsonNode) {
  if (jsonNode.isObject()) {
    try {
      this.file = new ObjectMapper().treeToValue(jsonNode, File.class);
    } catch (JsonProcessingException e) {
      logger.error("Error deserializing json: ", e);
    }
  } else if (jsonNode.isTextual()) {
    this.fileId = jsonNode.asText();
  }
}

代码示例来源：origin: rampatra/jbot

@JsonSetter("comment")
public void setComment(JsonNode jsonNode) {
  if (jsonNode.isObject()) {
    try {
      this.comment = new ObjectMapper().treeToValue(jsonNode, Comment.class);
    } catch (JsonProcessingException e) {
      logger.error("Error deserializing json: ", e);
    }
  } else if (jsonNode.isTextual()) {
    this.commentId = jsonNode.asText();
  }
}

代码示例来源：origin: allure-framework/allure2

private Optional<HistoryTrendItem> parseItem(final Path historyFile,
                       final ObjectMapper mapper, final JsonNode child) {
  try {
    if (Objects.nonNull(child.get("total"))) {
      final Statistic statistic = mapper.treeToValue(child, Statistic.class);
      return Optional.of(new HistoryTrendItem().setStatistic(statistic));
    }
    return Optional.ofNullable(mapper.treeToValue(child, HistoryTrendItem.class));
  } catch (JsonProcessingException e) {
    LOGGER.warn("Could not read {}", historyFile, e);
    return Optional.empty();
  }
}

代码示例来源：origin: knowm/XChange

@Override
 public CoinMarketCapArrayData<CoinMarketCapTicker> deserialize(
   JsonParser jp, DeserializationContext ctxt) throws IOException, JsonProcessingException {
  ObjectCodec oc = jp.getCodec();
  JsonNode node = oc.readTree(jp);
  if (node.isObject()) {
   List<CoinMarketCapTicker> tickers = new LinkedList<>();
   ObjectMapper mapper = new ObjectMapper();
   SimpleModule module = new SimpleModule();
   module.addDeserializer(
     CoinMarketCapTicker.class, new CoinMarketCapTicker.CoinMarketCapTickerDeserializer());
   mapper.registerModule(module);
   for (JsonNode child : node.get("data")) {
    tickers.add(mapper.treeToValue(child, CoinMarketCapTicker.class));
   }
   return new CoinMarketCapArrayData<>(tickers);
  }
  return null;
 }
}

代码示例来源：origin: apache/drill

public <T> T getWith(Class<T> c){
 try {
  return getMapper().treeToValue(objectNode, c);
 } catch (JsonProcessingException e) {
  throw new LogicalPlanParsingException(String.format("Failure while trying to convert late bound json type to type of %s.", c.getCanonicalName()), e);
 }
}

代码示例来源：origin: spring-projects/spring-data-redis

@Override
public Object fromHash(Map<String, Object> hash) {
  try {
    if (flatten) {
      return typingMapper.reader().forType(Object.class)
          .readValue(untypedMapper.writeValueAsBytes(doUnflatten(hash)));
    }
    return typingMapper.treeToValue(untypedMapper.valueToTree(hash), Object.class);
  } catch (IOException e) {
    throw new MappingException(e.getMessage(), e);
  }
}

代码示例来源：origin: apache/usergrid

@Override
public T fromJsonNode( final JsonNode node, final ObjectMapper objectMapper ) {
  try {
    final Class<? extends T> classType = getType();
     return objectMapper.treeToValue( node, classType );
  }
  catch ( JsonProcessingException e ) {
    throw new CursorParseException( "Unable to deserialize value", e );
  }
}

代码示例来源：origin: prestodb/presto

@Override
  public Optional<QueryStats> handle(Request request, Response response)
  {
    if (response.getStatusCode() == HttpStatus.GONE.code()) {
      return Optional.empty();
    }
    else if (response.getStatusCode() != HttpStatus.OK.code()) {
      throw new RuntimeException("unexpected error code " + response.getStatusCode() + "; reason=" + response.getStatusMessage());
    }
    try {
      JsonNode rootNode = objectMapper.readTree(response.getInputStream());
      JsonNode queryStatsNode = rootNode.get("queryStats");
      if (queryStatsNode == null) {
        return Optional.empty();
      }
      QueryStats queryStats = objectMapper.treeToValue(queryStatsNode, QueryStats.class);
      return Optional.of(queryStats);
    }
    catch (IOException e) {
      throw new UncheckedIOException(e);
    }
  }
}

代码示例来源：origin: joelittlejohn/jsonschema2pojo

private ObjectNode simpleTypeSchema(JsonNode exampleValue) {
  try {
    Object valueAsJavaType = this.objectMapper.treeToValue(exampleValue, Object.class);
    SchemaAware valueSerializer = getValueSerializer(valueAsJavaType);
    return (ObjectNode) valueSerializer.getSchema(this.objectMapper.getSerializerProvider(), null);
  } catch (JsonProcessingException e) {
    throw new GenerationException("Unable to generate a schema for this json example: " + exampleValue, e);
  }
}

代码示例来源：origin: apache/ignite

/**
 * @throws Exception If failed.
 */
@Test
public void testGetAll() throws Exception {
  final Map<String, String> entries = F.asMap("getKey1", "getVal1", "getKey2", "getVal2");
  jcache().putAll(entries);
  String ret = content(DEFAULT_CACHE_NAME, GridRestCommand.CACHE_GET_ALL,
    "k1", "getKey1",
    "k2", "getKey2"
  );
  info("Get all command result: " + ret);
  JsonNode res = assertResponseSucceeded(ret, true);
  assertTrue(res.isObject());
  assertEquals(entries, JSON_MAPPER.treeToValue(res, Map.class));
}