GSON 序列化与反序列化使用说明

前言

//Gson gson = new Gson();
Gson gson = new GsonBuilder().setPrettyPrinting().create();
		
Employee emp = new Employee(1001, "Lokesh", "Gupta", "howtodoinjava@gmail.com");

String jsonString = gson.toJson(emp);

Employee empObject = gson.fromJson(jsonString, Employee.class);

1.依赖性

$title(pom.xml)
<dependency>
  <groupId>com.google.code.gson</groupId>
  <artifactId>gson</artifactId>
  <version>2.8.5</version>
</dependency>

<dependency>
dependencies {
  implementation 'com.google.code.gson:gson:2.8.5'
}

2.序列化 - 使用Gson编写JSON

Employee emp = new Employee(1001, "Lokesh", "Gupta", "howtodoinjava@gmail.com");
         
Gson gson = new Gson();
 
String jsonString = gson.toJson(emp);
 
System.out.println(jsonString);

{
   "id":1001,
   "firstName":"Lokesh",
   "lastName":"Gupta",
   "email":"howtodoinjava@gmail.com"
}

2.反序列化 - 使用Gson读取JSON

String jsonString = "{'id':1001, 'firstName':'Lokesh', 'lastName':'Gupta', 'email':'howtodoinjava@gmail.com'}";
         
Gson gson = new Gson();
 
Employee empObject = gson.fromJson(jsonString, Employee.class);
 
System.out.println(empObject);

Employee [id=1001, firstName=Lokesh, lastName=Gupta, email=howtodoinjava@gmail.com]

GSON Java

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