JsonUtils序列化与反序列化工具

 1 package com.cxf.value;
 2 
 3 import com.fasterxml.jackson.core.type.TypeReference;
 4 import com.fasterxml.jackson.databind.DeserializationFeature;
 5 import com.fasterxml.jackson.databind.ObjectMapper;
 6 import com.fasterxml.jackson.databind.type.TypeFactory;
 7 import com.google.common.base.Preconditions;
 8 
 9 import java.io.IOException;
10 import java.io.StringWriter;
11 import java.io.Writer;
12 
13 public class JsonUtils {
14     private static ObjectMapper objectMapper = new ObjectMapper();
15 
16     public JsonUtils() {
17     }
18 
19     public static ObjectMapper getMapper() {
20         return objectMapper;
21     }
22 
23     public static String serialize(Object object) throws IOException {
24         return serialize(object, false);
25     }
26 
27     public static String serialize(Object object, boolean withPretty) throws IOException {
28         Writer write = new StringWriter();
29         if (withPretty) {
30             objectMapper.writerWithDefaultPrettyPrinter().writeValue(write, object);
31         } else {
32             objectMapper.writeValue(write, object);
33         }
34 
35         return write.toString();
36     }
37 
38     public static String serialize(ObjectMapper objectMapper, Object object, boolean withPretty) throws IOException {
39         Writer write = new StringWriter();
40         if (withPretty) {
41             objectMapper.writerWithDefaultPrettyPrinter().writeValue(write, object);
42         } else {
43             objectMapper.writeValue(write, object);
44         }
45 
46         return write.toString();
47     }
48 
49     public static <T> T deserialize(String json, Class<T> classType) throws IOException {
50         Preconditions.checkNotNull(json);
51         return (T) objectMapper.readValue(json, TypeFactory.rawClass(classType));
52     }
53 
54     public static <T> T deserialize(String json, TypeReference<T> typeRef) throws IOException {
55         return objectMapper.readValue(json, typeRef);
56     }
57 
58     public static <T> T deserialize(ObjectMapper objectMapper, String json, TypeReference<T> typeRef) throws IOException {
59         return objectMapper.readValue(json, typeRef);
60     }
61 
62     static {
63         objectMapper.configure(DeserializationFeature.FAIL_ON_UNKNOWN_PROPERTIES, false);
64     }
65 }

 1 <!-- use jackson lib-->
 2         <dependency>
 3             <groupId>com.alibaba</groupId>
 4             <artifactId>fastjson</artifactId>
 5             <version>1.2.44</version>
 6         </dependency>
 7         <dependency>
 8             <groupId>com.google.code.gson</groupId>
 9             <artifactId>gson</artifactId>
10             <version>2.8.2</version>
11         </dependency>
12         <!-- https://mvnrepository.com/artifact/com.google.guava/guava -->
13         <dependency>
14             <groupId>com.google.guava</groupId>
15             <artifactId>guava</artifactId>
16             <version>27.0-jre</version>
17         </dependency>