json字符长拼接

private static JSONObject buildJson(int userid, List<GroupElement> groups,int termimal,long t,String mdkey) {
    JSONObject obj = null;
    try {
        obj = new JSONObject();
        JSONArray jsonArr = new JSONArray();
        JSONObject infojson = new JSONObject();
        obj.put("userid",userid);
        obj.put("termimal",termimal);
        obj.put("t",t);
        obj.put("mdkey",mdkey);
        JSONObject jsonObj= null;
        if (groups != null) {
            for (GroupElement groupElement : groups) {
                jsonObj = new JSONObject();
                jsonObj.put("id", Long.parseLong(groupElement.getGroupid()));
                jsonObj.put("name",groupElement.getTitle());
                jsonArr.put(jsonObj) ;
                infojson.put("data",jsonArr);
            }
        }
        obj.put("info",infojson);
        Log.e("obj", "buildJson: "+obj);
    } catch (JSONException e) {
        try {
            DBLog.writexiangyuanMesage("GroupSync JSONException e:"+e.getMessage());
        }catch (Exception ex){
            e.printStackTrace();
        }

        e.printStackTrace();
    }
    return obj;
}

拼完后是这样的（数据是随便写的）：

{"userid":1,"termimal":1,"t":100000,"mdkey":"dede","info":{"data":[{"id":10002,"name":"哦哦哦"},{"id":10002,"name":"哦哦哦"},{"id":10002,"name":"哦哦哦"}]}}

用new Gson().toJson(user),发现简单省事，手动添加数据写的（主要在意格式，忽略数据的细节问题）

public class User {
    private int age;
    private int id;
    private String name;
    private String school;

    private Result info;

    public int getAge() {
        return age;
    }

    public void setAge(int age) {
        this.age = age;
    }

    public int getId() {
        return id;
    }

    public void setId(int id) {
        this.id = id;
    }

    public String getName() {
        return name == null ? "" : name;
    }

    public void setName(String name) {
        this.name = name;
    }

    public String getSchool() {
        return school == null ? "" : school;
    }

    public void setSchool(String school) {
        this.school = school;
    }

    public Result getInfo() {
        return info;
    }

    public void setInfo(Result info) {
        this.info = info;
    }

    public static class Data {
        private String obj;
        private int num;

        public String getObj() {
            return obj == null ? "" : obj;
        }

        public void setObj(String obj) {
            this.obj = obj;
        }

        public int getNum() {
            return num;
        }

        public void setNum(int num) {
            this.num = num;
        }


    }

    public static class Result {
        private List<Data> data;

        public List<Data> getData() {
            if (data == null) {
                return new ArrayList<>();
            }
            return data;
        }

        public void setData(List<Data> data) {
            this.data = data;
        }
    }
}

List<User.Data> strs = new ArrayList<>();
User.Data data = new User.Data();
data.setNum(99);
data.setObj("忘");
strs.add(data);
data.setNum(98);
data.setObj("哦");
strs.add(data);

User user = new User();
user.setAge(1);
user.setId(0);
user.setName("张");
user.setSchool("a1");
User.Result result = new User.Result();
result.setData(strs);

user.setInfo(result);

Log.e("onCreate==", new Gson().toJson(user));

结果：onCreate==: {"age":1,"id":0,"info":{"data":[{"num":98,"obj":"哦"},{"num":98,"obj":"哦"}]},"name":"张","school":"a1"}

完成。之前的写过的，突发奇想整理一下。