标签：png count json account 封装对象 zed imp sub 时间
可以通过Gson使用两种方法，将json字符串转换为对象，以下面该段报文做测试
{ "id": 84041462, "lastName": "小华", "age":32, "balance":666255.32, "hobbyDesc": { "subject": "数学", "score":25, "sport_desc":"跑步有益健康" } }
如上，将上面报文按层次解析并创建两个对象
import com.google.gson.annotations.SerializedName; public class HobbyDesc { private String subject; private int score; @SerializedName("sport_desc") private String sportDesc; //***
public class Account { private String id; private String lastName; private int age; private double balance; private HobbyDesc hobbyDesc;
//***
解析
String jsonStr = "{\n" +
"\t\"id\": 84041462,\n" +
"\t\"lastName\": \"小华\",\n" +
"\t\"age\":32,\n" +
"\t\"balance\":666255.32,\n" +
"\t\"hobbyDesc\": {\n" +
"\t\t\"subject\": \"数学\",\n" +
"\t\t\"score\":25,\n" +
"\t\t\"sport_desc\":\"跑步有益健康\"\n" +
"\t}\n" +
"\t\n" +
"}";
Account account = new Gson().fromJson(jsonStr,Account.class);
同时也可以看到，对象中定义为字符串类型的字段也可以接受json串的数值类型，没有转换问题。
直接使用Gson API解析
String jsonStr = "{\n" +
"\t\"id\": 84041462,\n" +
"\t\"lastName\": \"小华\",\n" +
"\t\"age\":32,\n" +
"\t\"balance\":666255.32,\n" +
"\t\"hobbyDesc\": {\n" +
"\t\t\"subject\": \"数学\",\n" +
"\t\t\"score\":25,\n" +
"\t\t\"sport_desc\":\"跑步有益健康\"\n" +
"\t}\n" +
"\t\n" +
"}";
JsonObject jsonObject = (JsonObject) new JsonParser().parse(jsonStr);
System.out.println("id <getAsInt> = "+jsonObject.get("id").getAsInt());//id <getAsInt> = 84041462
System.out.println("id <getAsString> = "+jsonObject.get("id").getAsString());//id <getAsString> = 84041462
System.out.println("position = "+ jsonObject.get("hobbyDesc").getAsJsonObject().get("sport_desc").getAsString());//position = 跑步有益健康
参照jsonObject结构，可以了解Gson这种封装对象的方式，如果仅仅是取某值的话，可以采用这种方式，可以节约大量时间
标签：png count json account 封装对象 zed imp sub 时间
原文地址：https://www.cnblogs.com/zjfjava/p/10122327.html
