如何使用 Gson 将 Json 转换为 Java 对象

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时间:2020-08-11 20:29:02  来源:igfitidea点击:

How to convert Json to Java object using Gson

javajsongson

提问by

Suppose I have json string

假设我有 json 字符串

{"userId":"1","userName":"Yasir"}

now I have a class User

现在我有一个类用户

class User{
int userId;
String userName;
//setters and getters
}

Now How can I convert above json string to user class object

现在如何将上面的 json 字符串转换为用户类对象

采纳答案by Sándor Juhos

Try this:

尝试这个:

Gson gson = new Gson();
String jsonInString = "{\"userId\":\"1\",\"userName\":\"Yasir\"}";
User user= gson.fromJson(jsonInString, User.class);

回答by Daniel

Gson gson = new Gson();
User user = gson.fromJson("{\"userId\":\"1\",\"userName\":\"Yasir\"}", User.class));

回答by Jekin Kalariya

User user= gson.fromJson(jsonInString, User.class);

// where jsonInString is your json {"userId":"1","userName":"Yasir"}

回答by Nitheesh Chandran

Gson gson = new Gson();

User u=gson.fromJson(jsonstring, User.class);
System.out.println("userName: "+u.getusername);