首頁猿問 java 里面的 Gson 問題

java 里面的 Gson 問題

JavaScript

九州編程 2019-04-13 08:45:39

@TestpublicvoidtestGetInt(){Usersusers=usersDAO.get(3);StringjsonUsers=gson.toJson(users);System.out.println("jsonUsers:"+jsonUsers);intavatarId=users.getAvatarId();Avataravatar=avatarDAO.get(avatarId);StringjsonAvatar=gson.toJson(avatar);System.out.println("jsonAvatar:"+jsonAvatar);}打印的數(shù)據(jù)：jsonUsers:{"user_id":3,"username":"Tony","urlname":"comq"}jsonAvatar:{"id":3,"farm":"farm1","bucket":"hbimg","key":"e925755184a-aSvujx","type":"image/jpeg","width":100,"height":100,"frames":1}怎么把jsonAvatar數(shù)據(jù)放到j(luò)sonUsers里面，變成：{"user_id":3,"username":"Tony","urlname":"comq","avatar":{"id":3,"farm":"farm1","bucket":"hbimg","key":"e925755184a-aSvujx","type":"image/jpeg","width":100,"height":100,"frames":1}}

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packagecom;importcom.google.gson.Gson;publicclassTestGson{publicstaticvoidmain(Stringargs[]){StringjsonAvatar="";//你的json數(shù)據(jù)Useruser=newUser();user.setUser_id(3);user.setUsername("Tony");user.setUrlname("comq");user.setAvatar(jsonAvatar);Gsongson=newGson();Stringresult=gson.toJson(user);System.out.println(result);}}packagecom;publicclassUser{privateintuser_id;privateStringusername;privateStringurlname;privateStringavatar;publicintgetUser_id(){returnuser_id;}publicvoidsetUser_id(intuser_id){this.user_id=user_id;}publicStringgetUsername(){returnusername;}publicvoidsetUsername(Stringusername){this.username=username;}publicStringgetUrlname(){returnurlname;}publicvoidsetUrlname(Stringurlname){this.urlname=urlname;}publicStringgetAvatar(){returnavatar;}publicvoidsetAvatar(Stringavatar){this.avatar=avatar;}}