[英]Convert json to java object with gson
作为我的计算机科学IA的一部分,我正在创建一个工具来读取比赛历史记录和Dota游戏的详细信息,并生成统计信息和英雄统计信息。 为此,我已经访问了Valve API,并从中获取了一些匹配的json和匹配历史记录,然后将其略微缩小,以便它们仅包含json中我需要的信息。
以下是json格式的其中一项匹配项的详细信息示例:
"result": {
"players": [
{
"account_id": 40884464,
"player_slot": 0,
"hero_id": 31,
"kills": 8,
"deaths": 8,
"assists": 14,
"last_hits": 72,
"denies": 0,
"gold_per_min": 304,
"xp_per_min": 412,
"level": 18,
},
{
"account_id": 70638797,
"player_slot": 1,
"hero_id": 35,
"kills": 6,
"deaths": 7,
"assists": 4,
"last_hits": 212,
"denies": 37,
"gold_per_min": 371,
"xp_per_min": 356,
"level": 17,
},
{
"account_id": 76281087,
"player_slot": 2,
"hero_id": 5,
"kills": 3,
"deaths": 13,
"assists": 10,
"last_hits": 22,
"denies": 0,
"gold_per_min": 215,
"xp_per_min": 259,
"level": 14,
},
{
"account_id": 4294967295,
"player_slot": 3,
"hero_id": 28,
"kills": 11,
"deaths": 11,
"assists": 11,
"last_hits": 166,
"denies": 18,
"gold_per_min": 413,
"xp_per_min": 485,
"level": 20,
},
{
"account_id": 81692493,
"player_slot": 4,
"hero_id": 2,
"kills": 1,
"deaths": 9,
"assists": 7,
"last_hits": 135,
"denies": 8,
"gold_per_min": 261,
"xp_per_min": 314,
"level": 16,
},
{
"account_id": 10101141,
"player_slot": 128,
"hero_id": 30,
"kills": 7,
"deaths": 8,
"assists": 25,
"last_hits": 90,
"denies": 2,
"gold_per_min": 382,
"xp_per_min": 421,
"level": 18,
},
{
"account_id": 62101519,
"player_slot": 129,
"hero_id": 7,
"kills": 6,
"deaths": 8,
"assists": 20,
"last_hits": 305,
"denies": 0,
"gold_per_min": 556,
"xp_per_min": 585,
"level": 22,
},
{
"account_id": 134700328,
"player_slot": 130,
"hero_id": 4,
"kills": 17,
"deaths": 2,
"assists": 13,
"last_hits": 335,
"denies": 16,
"gold_per_min": 729,
"xp_per_min": 724,
"level": 25,
},
{
"account_id": 35357393,
"player_slot": 131,
"hero_id": 83,
"kills": 4,
"deaths": 4,
"assists": 23,
"last_hits": 16,
"denies": 4,
"gold_per_min": 318,
"xp_per_min": 407,
"level": 18,
},
{
"account_id": 4294967295,
"player_slot": 132,
"hero_id": 101,
"kills": 13,
"deaths": 8,
"assists": 12,
"last_hits": 57,
"denies": 3,
"gold_per_min": 390,
"xp_per_min": 405,
"level": 18,
}
]
,
"radiant_win": false,
"duration": 2682,
"start_time": 1461781997,
"match_id": 2324299045,
"match_seq_num": 2036251155,
"cluster": 133,
"game_mode": 1,
"flags": 0,
"engine": 1,
"radiant_score": 30,
"dire_score": 48
}
使用intelliJ插件,我创建了3个Java类,一个具有匹配结果,一个用于结果的详细信息,一个用于结果中播放器的详细信息,每个具有变量的集合都位于:
TestMatch字段:
private TestMatchResult result;
TestMatchResult字段:
private int duration;
private int start_time;
private int cluster;
private boolean radiant_win;
private int match_seq_num;
private int engine;
private TestMatchResultPlayers[] players;
private long match_id;
private int dire_score;
private int flags;
private int game_mode;
private int radiant_score;
TestMatchResultPlayers字段:
private int kills;
private int gold_per_min;
private int last_hits;
private int account_id;
private int assists;
private int level;
private int player_slot;
private int xp_per_min;
private int hero_id;
private int denies;
private int deaths;
我已经下载了gson库并将其作为依赖项添加到intelliJ项目中。 我正在尝试将json作为对象解析为java类,并希望对所有匹配的json都执行此操作,但是目前我不确定如何执行此操作,我所拥有的只是:
public static void getMatch()
{
Gson gson = new Gson();
}
谁能比我自己更了解gson的人能给我一些指导,说明我如何将json解析为多个匹配json的对象的类? 一旦完成,剩下的事情就很容易了,因为这只是获取变量并对其进行计算然后显示它们的一种情况。 如果不可能或不可行,我可以制作一个测试CSV并从中读取,因为我知道如何使用它们,但是只能遇到json,因为这是Valve API返回请求的方式,所以我可能还想学习如何使用它们。
谢谢!
您需要使用方法Gson.fromJson()
public static void getMatch()
{
Gson gson = new Gson();
TestMatch tm = gson.fromJson(jsonString, TestMatch.class);
}
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