Class ObjectUtils

java.lang.Object

cool.scx.common.util.ObjectUtils

public final class ObjectUtils
extends Object

处理对象的工具类 本质上就是对 ObjectMapper 进行了一些简单的封装 todo 我们是否真的需要如此多的 ObjectMapper 来完成忽略注解这件事

Version:

0.0.1

Author:

scx567888

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	ObjectUtils.Options

Field Summary

Fields

Modifier and Type	Field	Description
static final com.fasterxml.jackson.core.type.TypeReference<Map<String,Object>>	MAP_TYPE	因为 java 无法方便的存储泛型 使用 TypeReference 创建一些常用的类型 此类为 Map 类型

Constructor Summary

Constructors

Constructor	Description
ObjectUtils()

Method Summary

Modifier and Type	Method	Description
static com.fasterxml.jackson.databind.JavaType	constructType(com.fasterxml.jackson.core.type.TypeReference<?> typeRef)
static com.fasterxml.jackson.databind.JavaType	constructType(Type type)
static <T> T	convertValue(Object fromValue, com.fasterxml.jackson.core.type.TypeReference<T> toValueTypeRef)
static <T> T	convertValue(Object fromValue, com.fasterxml.jackson.core.type.TypeReference<T> toValueTypeRef, ObjectUtils.Options options)
static <T> T	convertValue(Object fromValue, com.fasterxml.jackson.databind.JavaType javaType)
static <T> T	convertValue(Object fromValue, com.fasterxml.jackson.databind.JavaType javaType, ObjectUtils.Options options)
static <T> T	convertValue(Object fromValue, Class<T> tClass)
static <T> T	convertValue(Object fromValue, Class<T> tClass, ObjectUtils.Options options)
static <T> T	convertValue(Object fromValue, Type toValueType)
static <T> T	convertValue(Object fromValue, Type toValueType, ObjectUtils.Options options)
static Map<String,Object>	flatMap(Map<?,?> sourceMap)	将嵌套的 map 扁平化
static com.fasterxml.jackson.databind.type.TypeFactory	getTypeFactory()
static com.fasterxml.jackson.databind.json.JsonMapper	jsonMapper()
static com.fasterxml.jackson.databind.json.JsonMapper	jsonMapper(ObjectUtils.Options options)
static com.fasterxml.jackson.databind.JavaType	resolveMemberType(Type type, com.fasterxml.jackson.databind.type.TypeBindings contextBindings)
static String	toJson(Object value)
static String	toJson(Object value, ObjectUtils.Options options)
static String	toJson(Object value, String defaultValue)
static String	toJson(Object value, String defaultValue, ObjectUtils.Options options)
static String	toXml(Object value)
static String	toXml(Object value, ObjectUtils.Options options)
static String	toXml(Object value, String defaultValue)
static String	toXml(Object value, String defaultValue, ObjectUtils.Options options)
static com.fasterxml.jackson.dataformat.xml.XmlMapper	xmlMapper()
static com.fasterxml.jackson.dataformat.xml.XmlMapper	xmlMapper(ObjectUtils.Options options)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Details

MAP_TYPE

public static final com.fasterxml.jackson.core.type.TypeReference<Map<String,Object>> MAP_TYPE

因为 java 无法方便的存储泛型 使用 TypeReference 创建一些常用的类型 此类为 Map 类型

Constructor Details

ObjectUtils

public ObjectUtils()

Method Details

jsonMapper

public static com.fasterxml.jackson.databind.json.JsonMapper jsonMapper(ObjectUtils.Options options)

xmlMapper

public static com.fasterxml.jackson.dataformat.xml.XmlMapper xmlMapper(ObjectUtils.Options options)

jsonMapper

public static com.fasterxml.jackson.databind.json.JsonMapper jsonMapper()

xmlMapper

public static com.fasterxml.jackson.dataformat.xml.XmlMapper xmlMapper()

constructType

public static com.fasterxml.jackson.databind.JavaType constructType(Type type)

constructType

public static com.fasterxml.jackson.databind.JavaType constructType(com.fasterxml.jackson.core.type.TypeReference<?> typeRef)

resolveMemberType

public static com.fasterxml.jackson.databind.JavaType resolveMemberType(Type type,
 com.fasterxml.jackson.databind.type.TypeBindings contextBindings)

getTypeFactory

public static com.fasterxml.jackson.databind.type.TypeFactory getTypeFactory()

convertValue

public static <T> T convertValue(Object fromValue,
 com.fasterxml.jackson.databind.JavaType javaType,
 ObjectUtils.Options options)

convertValue

public static <T> T convertValue(Object fromValue,
 Class<T> tClass,
 ObjectUtils.Options options)

convertValue

public static <T> T convertValue(Object fromValue,
 Type toValueType,
 ObjectUtils.Options options)

convertValue

public static <T> T convertValue(Object fromValue,
 com.fasterxml.jackson.core.type.TypeReference<T> toValueTypeRef,
 ObjectUtils.Options options)

convertValue

public static <T> T convertValue(Object fromValue,
 com.fasterxml.jackson.databind.JavaType javaType)

convertValue

public static <T> T convertValue(Object fromValue,
 Class<T> tClass)

convertValue

public static <T> T convertValue(Object fromValue,
 Type toValueType)

convertValue

public static <T> T convertValue(Object fromValue,
 com.fasterxml.jackson.core.type.TypeReference<T> toValueTypeRef)

toJson

public static String toJson(Object value,
 String defaultValue,
 ObjectUtils.Options options)

toXml

public static String toXml(Object value,
 String defaultValue,
 ObjectUtils.Options options)

toJson

public static String toJson(Object value,
 String defaultValue)

toXml

public static String toXml(Object value,
 String defaultValue)

toJson

public static String toJson(Object value,
 ObjectUtils.Options options)
                     throws com.fasterxml.jackson.core.JsonProcessingException

Throws:

com.fasterxml.jackson.core.JsonProcessingException

toXml

public static String toXml(Object value,
 ObjectUtils.Options options)
                    throws com.fasterxml.jackson.core.JsonProcessingException

Throws:

com.fasterxml.jackson.core.JsonProcessingException

toJson

public static String toJson(Object value)
                     throws com.fasterxml.jackson.core.JsonProcessingException

Throws:

com.fasterxml.jackson.core.JsonProcessingException

toXml

public static String toXml(Object value)
                    throws com.fasterxml.jackson.core.JsonProcessingException

Throws:

com.fasterxml.jackson.core.JsonProcessingException

flatMap

public static Map<String,Object> flatMap(Map<?,?> sourceMap)

将嵌套的 map 扁平化

Parameters:

sourceMap - 源 map

Returns:

扁平化后的 map