JsonUtils序列化与反序列化工具

直接见代码，需要引入的包如下文，需要谷歌的包。

 package com.cxf.value;

 import com.fasterxml.jackson.core.type.TypeReference;
 import com.fasterxml.jackson.databind.DeserializationFeature;
 import com.fasterxml.jackson.databind.ObjectMapper;
 import com.fasterxml.jackson.databind.type.TypeFactory;
 import com.google.common.base.Preconditions;

 import java.io.IOException;
 import java.io.StringWriter;
 import java.io.Writer;

 public class JsonUtils {
     private static ObjectMapper objectMapper = new ObjectMapper();

     public JsonUtils() {
     }

     public static ObjectMapper getMapper() {
         return objectMapper;
     }

     public static String serialize(Object object) throws IOException {
         return serialize(object, false);
     }

     public static String serialize(Object object, boolean withPretty) throws IOException {
         Writer write = new StringWriter();
         if (withPretty) {
             objectMapper.writerWithDefaultPrettyPrinter().writeValue(write, object);
         } else {
             objectMapper.writeValue(write, object);
         }

         return write.toString();
     }

     public static String serialize(ObjectMapper objectMapper, Object object, boolean withPretty) throws IOException {
         Writer write = new StringWriter();
         if (withPretty) {
             objectMapper.writerWithDefaultPrettyPrinter().writeValue(write, object);
         } else {
             objectMapper.writeValue(write, object);
         }

         return write.toString();
     }

     public static <T> T deserialize(String json, Class<T> classType) throws IOException {
         Preconditions.checkNotNull(json);
         return (T) objectMapper.readValue(json, TypeFactory.rawClass(classType));
     }

     public static <T> T deserialize(String json, TypeReference<T> typeRef) throws IOException {
         return objectMapper.readValue(json, typeRef);
     }

     public static <T> T deserialize(ObjectMapper objectMapper, String json, TypeReference<T> typeRef) throws IOException {
         return objectMapper.readValue(json, typeRef);
     }

     static {
         objectMapper.configure(DeserializationFeature.FAIL_ON_UNKNOWN_PROPERTIES, false);
     }
 }

 <!-- use jackson lib-->
         <dependency>
             <groupId>com.alibaba</groupId>
             <artifactId>fastjson</artifactId>
             <version>1.2.44</version>
         </dependency>
         <dependency>
             <groupId>com.google.code.gson</groupId>
             <artifactId>gson</artifactId>
             <version>2.8.2</version>
         </dependency>
         <!-- https://mvnrepository.com/artifact/com.google.guava/guava -->
         <dependency>
             <groupId>com.google.guava</groupId>
             <artifactId>guava</artifactId>
             <version>27.0-jre</version>
         </dependency>