org.macrocloud.kernel.toolkit.jackson.JsonUtil Maven / Gradle / Ivy
package org.macrocloud.kernel.toolkit.jackson;
import com.fasterxml.jackson.core.JsonParser;
import com.fasterxml.jackson.core.JsonProcessingException;
import com.fasterxml.jackson.core.TreeNode;
import com.fasterxml.jackson.core.json.JsonReadFeature;
import com.fasterxml.jackson.core.type.TypeReference;
import com.fasterxml.jackson.databind.*;
import com.fasterxml.jackson.databind.type.CollectionLikeType;
import com.fasterxml.jackson.databind.type.MapType;
import lombok.extern.slf4j.Slf4j;
import org.macrocloud.kernel.toolkit.utils.*;
import org.springframework.lang.Nullable;
import java.io.IOException;
import java.io.InputStream;
import java.text.SimpleDateFormat;
import java.time.ZoneId;
import java.util.*;
/**
* Jackson工具类.
*/
/** The Constant log. */
@Slf4j
public class JsonUtil {
/**
* 将对象序列化成json字符串.
*
* @param the generic type
* @param value javaBean
* @return jsonString json字符串
*/
public static String toJson(T value) {
try {
return getInstance().writeValueAsString(value);
} catch (Exception e) {
log.error(e.getMessage(), e);
}
return null;
}
/**
* 将对象序列化成 json byte 数组.
*
* @param object javaBean
* @return jsonString json字符串
*/
public static byte[] toJsonAsBytes(Object object) {
try {
return getInstance().writeValueAsBytes(object);
} catch (JsonProcessingException e) {
throw Exceptions.unchecked(e);
}
}
/**
* 将json反序列化成对象.
*
* @param T 泛型标记
* @param content content
* @param valueType class
* @return Bean
*/
public static T parse(String content, Class valueType) {
try {
return getInstance().readValue(content, valueType);
} catch (Exception e) {
log.error(e.getMessage(), e);
}
return null;
}
/**
* 将json反序列化成对象.
*
* @param T 泛型标记
* @param content content
* @param typeReference 泛型类型
* @return Bean
*/
public static T parse(String content, TypeReference typeReference) {
try {
return getInstance().readValue(content, typeReference);
} catch (IOException e) {
throw Exceptions.unchecked(e);
}
}
/**
* 将json byte 数组反序列化成对象.
*
* @param T 泛型标记
* @param bytes json bytes
* @param valueType class
* @return Bean
*/
public static T parse(byte[] bytes, Class valueType) {
try {
return getInstance().readValue(bytes, valueType);
} catch (IOException e) {
throw Exceptions.unchecked(e);
}
}
/**
* 将json反序列化成对象.
*
* @param T 泛型标记
* @param bytes bytes
* @param typeReference 泛型类型
* @return Bean
*/
public static T parse(byte[] bytes, TypeReference typeReference) {
try {
return getInstance().readValue(bytes, typeReference);
} catch (IOException e) {
throw Exceptions.unchecked(e);
}
}
/**
* 将json反序列化成对象.
*
* @param T 泛型标记
* @param in InputStream
* @param valueType class
* @return Bean
*/
public static T parse(InputStream in, Class valueType) {
try {
return getInstance().readValue(in, valueType);
} catch (IOException e) {
throw Exceptions.unchecked(e);
}
}
/**
* 将json反序列化成对象.
*
* @param T 泛型标记
* @param in InputStream
* @param typeReference 泛型类型
* @return Bean
*/
public static T parse(InputStream in, TypeReference typeReference) {
try {
return getInstance().readValue(in, typeReference);
} catch (IOException e) {
throw Exceptions.unchecked(e);
}
}
/**
* 将json反序列化成List对象.
*
* @param T 泛型标记
* @param content content
* @param valueTypeRef class
* @return List
*/
public static List parseArray(String content, Class valueTypeRef) {
try {
if (!StringUtil.startsWithIgnoreCase(content, StringPool.LEFT_SQ_BRACKET)) {
content = StringPool.LEFT_SQ_BRACKET + content + StringPool.RIGHT_SQ_BRACKET;
}
List> list = getInstance().readValue(content, new TypeReference>>() {
});
List result = new ArrayList<>();
for (Map map : list) {
result.add(toPojo(map, valueTypeRef));
}
return result;
} catch (IOException e) {
log.error(e.getMessage(), e);
}
return null;
}
/**
* 将json字符串转成 JsonNode.
*
* @param jsonString jsonString
* @return jsonString json字符串
*/
public static JsonNode readTree(String jsonString) {
Objects.requireNonNull(jsonString, "jsonString is null");
try {
return getInstance().readTree(jsonString);
} catch (IOException e) {
throw Exceptions.unchecked(e);
}
}
/**
* 将json字符串转成 JsonNode.
*
* @param in InputStream
* @return JsonNodejsonString json字符串
*/
public static JsonNode readTree(InputStream in) {
Objects.requireNonNull(in, "InputStream in is null");
try {
return getInstance().readTree(in);
} catch (IOException e) {
throw Exceptions.unchecked(e);
}
}
/**
* 将json字符串转成 JsonNode.
*
* @param content content
* @return JsonNode jsonString json字符串
*/
public static JsonNode readTree(byte[] content) {
Objects.requireNonNull(content, "byte[] content is null");
try {
return getInstance().readTree(content);
} catch (IOException e) {
throw Exceptions.unchecked(e);
}
}
/**
* 将json字符串转成 JsonNode.
*
* @param jsonParser JsonParser
* @return JsonNode jsonString json字符串
*/
public static JsonNode readTree(JsonParser jsonParser) {
Objects.requireNonNull(jsonParser, "jsonParser is null");
try {
return getInstance().readTree(jsonParser);
} catch (IOException e) {
throw Exceptions.unchecked(e);
}
}
/**
* 将json byte 数组反序列化成对象.
*
* @param T 泛型标记
* @param content json bytes
* @param valueType class
* @return Bean
*/
@Nullable
public static T readValue(@Nullable byte[] content, Class valueType) {
if (ObjectUtil.isEmpty(content)) {
return null;
}
try {
return getInstance().readValue(content, valueType);
} catch (IOException e) {
throw Exceptions.unchecked(e);
}
}
/**
* 将json反序列化成对象.
*
* @param T 泛型标记
* @param jsonString jsonString
* @param valueType class
* @return Bean
*/
@Nullable
public static T readValue(@Nullable String jsonString, Class valueType) {
if (StringUtil.isBlank(jsonString)) {
return null;
}
try {
return getInstance().readValue(jsonString, valueType);
} catch (IOException e) {
throw Exceptions.unchecked(e);
}
}
/**
* 将json反序列化成对象.
*
* @param T 泛型标记
* @param in InputStream
* @param valueType class
* @return Bean
*/
@Nullable
public static T readValue(@Nullable InputStream in, Class valueType) {
if (in == null) {
return null;
}
try {
return getInstance().readValue(in, valueType);
} catch (IOException e) {
throw Exceptions.unchecked(e);
}
}
/**
* 将json反序列化成对象.
*
* @param T 泛型标记
* @param content bytes
* @param typeReference 泛型类型
* @return Bean
*/
@Nullable
public static T readValue(@Nullable byte[] content, TypeReference typeReference) {
if (ObjectUtil.isEmpty(content)) {
return null;
}
try {
return getInstance().readValue(content, typeReference);
} catch (IOException e) {
throw Exceptions.unchecked(e);
}
}
/**
* 将json反序列化成对象.
*
* @param T 泛型标记
* @param jsonString jsonString
* @param typeReference 泛型类型
* @return Bean
*/
@Nullable
public static T readValue(@Nullable String jsonString, TypeReference typeReference) {
if (StringUtil.isBlank(jsonString)) {
return null;
}
try {
return getInstance().readValue(jsonString, typeReference);
} catch (IOException e) {
throw Exceptions.unchecked(e);
}
}
/**
* 将json反序列化成对象.
*
* @param T 泛型标记
* @param in InputStream
* @param typeReference 泛型类型
* @return Bean
*/
@Nullable
public static T readValue(@Nullable InputStream in, TypeReference typeReference) {
if (in == null) {
return null;
}
try {
return getInstance().readValue(in, typeReference);
} catch (IOException e) {
throw Exceptions.unchecked(e);
}
}
/**
* 封装 map type.
*
* @param keyClass key 类型
* @param valueClass value 类型
* @return MapType
*/
public static MapType getMapType(Class keyClass, Class valueClass) {
return getInstance().getTypeFactory().constructMapType(Map.class, keyClass, valueClass);
}
/**
* 封装 map type.
*
* @param elementClass 集合值类型
* @return CollectionLikeType
*/
public static CollectionLikeType getListType(Class elementClass) {
return getInstance().getTypeFactory().constructCollectionLikeType(List.class, elementClass);
}
/**
* 读取集合.
*
* @param 泛型
* @param content bytes
* @param elementClass elementClass
* @return 集合
*/
public static List readList(@Nullable byte[] content, Class elementClass) {
if (ObjectUtil.isEmpty(content)) {
return Collections.emptyList();
}
try {
return getInstance().readValue(content, getListType(elementClass));
} catch (IOException e) {
throw Exceptions.unchecked(e);
}
}
/**
* 读取集合.
*
* @param 泛型
* @param content InputStream
* @param elementClass elementClass
* @return 集合
*/
public static List readList(@Nullable InputStream content, Class elementClass) {
if (content == null) {
return Collections.emptyList();
}
try {
return getInstance().readValue(content, getListType(elementClass));
} catch (IOException e) {
throw Exceptions.unchecked(e);
}
}
/**
* 读取集合.
*
* @param 泛型
* @param content bytes
* @param elementClass elementClass
* @return 集合
*/
public static List readList(@Nullable String content, Class elementClass) {
if (ObjectUtil.isEmpty(content)) {
return Collections.emptyList();
}
try {
return getInstance().readValue(content, getListType(elementClass));
} catch (IOException e) {
throw Exceptions.unchecked(e);
}
}
/**
* 读取集合.
*
* @param 泛型
* @param 泛型
* @param content bytes
* @param keyClass key类型
* @param valueClass 值类型
* @return 集合
*/
public static Map readMap(@Nullable byte[] content, Class keyClass, Class valueClass) {
if (ObjectUtil.isEmpty(content)) {
return Collections.emptyMap();
}
try {
return getInstance().readValue(content, getMapType(keyClass, valueClass));
} catch (IOException e) {
throw Exceptions.unchecked(e);
}
}
/**
* 读取集合.
*
* @param 泛型
* @param 泛型
* @param content InputStream
* @param keyClass key类型
* @param valueClass 值类型
* @return 集合
*/
public static Map readMap(@Nullable InputStream content, Class keyClass, Class valueClass) {
if (ObjectUtil.isEmpty(content)) {
return Collections.emptyMap();
}
try {
return getInstance().readValue(content, getMapType(keyClass, valueClass));
} catch (IOException e) {
throw Exceptions.unchecked(e);
}
}
/**
* 读取集合.
*
* @param 泛型
* @param 泛型
* @param content bytes
* @param keyClass key类型
* @param valueClass 值类型
* @return 集合
*/
public static Map readMap(@Nullable String content, Class keyClass, Class valueClass) {
if (ObjectUtil.isEmpty(content)) {
return Collections.emptyMap();
}
try {
return getInstance().readValue(content, getMapType(keyClass, valueClass));
} catch (IOException e) {
throw Exceptions.unchecked(e);
}
}
/**
* jackson 的类型转换.
*
* @param 泛型标记
* @param fromValue 来源对象
* @param toValueType 转换的类型
* @return 转换结果
*/
public static T convertValue(Object fromValue, Class toValueType) {
return getInstance().convertValue(fromValue, toValueType);
}
/**
* jackson 的类型转换.
*
* @param 泛型标记
* @param fromValue 来源对象
* @param toValueType 转换的类型
* @return 转换结果
*/
public static T convertValue(Object fromValue, JavaType toValueType) {
return getInstance().convertValue(fromValue, toValueType);
}
/**
* jackson 的类型转换.
*
* @param 泛型标记
* @param fromValue 来源对象
* @param toValueTypeRef 泛型类型
* @return 转换结果
*/
public static T convertValue(Object fromValue, TypeReference toValueTypeRef) {
return getInstance().convertValue(fromValue, toValueTypeRef);
}
/**
* tree 转对象.
*
* @param 泛型标记
* @param treeNode TreeNode
* @param valueType valueType
* @return 转换结果
*/
public static T treeToValue(TreeNode treeNode, Class valueType) {
try {
return getInstance().treeToValue(treeNode, valueType);
} catch (JsonProcessingException e) {
throw Exceptions.unchecked(e);
}
}
/**
* 对象转为 json node.
*
* @param value 对象
* @return JsonNode
*/
public static JsonNode valueToTree(@Nullable Object value) {
return getInstance().valueToTree(value);
}
/**
* 判断是否可以序列化.
*
* @param value 对象
* @return 是否可以序列化
*/
public static boolean canSerialize(@Nullable Object value) {
if (value == null) {
return true;
}
return getInstance().canSerialize(value.getClass());
}
/**
* To map.
*
* @param content the content
* @return the map
*/
public static Map toMap(String content) {
try {
return getInstance().readValue(content, Map.class);
} catch (IOException e) {
log.error(e.getMessage(), e);
}
return null;
}
/**
* To map.
*
* @param the generic type
* @param content the content
* @param valueTypeRef the value type ref
* @return the map
*/
public static Map toMap(String content, Class valueTypeRef) {
try {
Map> map = getInstance().readValue(content, new TypeReference>>() {
});
Map result = new HashMap<>(16);
for (Map.Entry> entry : map.entrySet()) {
result.put(entry.getKey(), toPojo(entry.getValue(), valueTypeRef));
}
return result;
} catch (IOException e) {
log.error(e.getMessage(), e);
}
return null;
}
/**
* To pojo.
*
* @param the generic type
* @param fromValue the from value
* @param toValueType the to value type
* @return the t
*/
public static T toPojo(Map fromValue, Class toValueType) {
return getInstance().convertValue(fromValue, toValueType);
}
/**
* Gets the single instance of JsonUtil.
*
* @return single instance of JsonUtil
*/
public static ObjectMapper getInstance() {
return JacksonHolder.INSTANCE;
}
/**
* The Class JacksonHolder.
*/
private static class JacksonHolder {
/** The Constant INSTANCE. */
private static final ObjectMapper INSTANCE = new JacksonObjectMapper();
}
/**
* The Class JacksonObjectMapper.
*/
private static class JacksonObjectMapper extends ObjectMapper {
/** The Constant serialVersionUID. */
private static final long serialVersionUID = 4288193147502386170L;
/** The Constant CHINA. */
private static final Locale CHINA = Locale.CHINA;
/**
* Instantiates a new jackson object mapper.
*
* @param src the src
*/
public JacksonObjectMapper(ObjectMapper src) {
super(src);
}
/**
* Instantiates a new jackson object mapper.
*/
public JacksonObjectMapper() {
super();
//设置地点为中国
super.setLocale(CHINA);
//去掉默认的时间戳格式
super.configure(SerializationFeature.WRITE_DATES_AS_TIMESTAMPS, false);
//设置为中国上海时区
super.setTimeZone(TimeZone.getTimeZone(ZoneId.systemDefault()));
//序列化时，日期的统一格式
super.setDateFormat(new SimpleDateFormat(DateUtil.PATTERN_DATETIME, Locale.CHINA));
// 单引号
super.configure(JsonParser.Feature.ALLOW_SINGLE_QUOTES, true);
// 允许JSON字符串包含非引号控制字符（值小于32的ASCII字符，包含制表符和换行符）
super.configure(JsonReadFeature.ALLOW_UNESCAPED_CONTROL_CHARS.mappedFeature(), true);
super.configure(JsonReadFeature.ALLOW_BACKSLASH_ESCAPING_ANY_CHARACTER.mappedFeature(), true);
super.findAndRegisterModules();
//失败处理
super.configure(SerializationFeature.FAIL_ON_EMPTY_BEANS, false);
super.configure(DeserializationFeature.FAIL_ON_UNKNOWN_PROPERTIES, false);
//单引号处理
super.configure(JsonReadFeature.ALLOW_SINGLE_QUOTES.mappedFeature(), true);
//反序列化时，属性不存在的兼容处理s
super.getDeserializationConfig().withoutFeatures(DeserializationFeature.FAIL_ON_UNKNOWN_PROPERTIES);
//日期格式化
super.registerModule(new BaseJavaTimeModule());
super.findAndRegisterModules();
}
/**
* Title: copy
* Description:
* @return
* @see com.fasterxml.jackson.databind.ObjectMapper#copy()
*/
@Override
public ObjectMapper copy() {
return new JacksonObjectMapper(this);
}
}
}
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