字符串是
"categories": {
"1": {
"Id": "4",
"name": "hm\u00c3\u0080\u00c2\u00afI\u00c3\u0084",
"0": {
"Id": "250",
"name": "bpsI"
},
"1": {
"Id": "251",
"name": "tIcfw"
},
"2": {
"Id": "252",
"name": "C\u00c2\u00b4y"
},
"3": {
"Id": "253",
"name": "C\u00c2\u00bdnt{Kj\u00c2\u00b3"
},
"4": {
"Id": "254",
"name": "hntZiw"
},
"5": {
"Id": "255",
"name": "{]hmkn"
},
"6": {
"Id": "256",
"name": "Ncaw"
},
"7": {
"Id": "294",
"name": "FUnt\u00c3\u00a4mdnb\u00c3\u00b0"
}
},
"2": {
"Id": "257",
"name": "Atkmkntbj\u00c2\u00b3"
},
"3": {
"Id": "258",
"name": "kv]ncnNz\u00c3\u00b0"
},
"4": {
"Id": "259",
"name": "tlm\u00c2\u00abv Uo\u00c3\u00b0kv",
"0": {
"Id": "308",
"name": "t{Kmkdn"
},
"1": {
"Id": "310",
"name": "CeIvt{SmWnIvkv"
},
"2": {
"Id": "311",
"name": "a\u00c3\u00a4p\u00c3\u0085h"
}
},
"5": {
"Id": "260",
"name": "hnt\mZw",
"0": {
"Id": "261",
"name": "kn\na"
},
"1": {
"Id": "262",
"name": "Nm\\u00c3\u00b0"
},
"2": {
"Id": "263",
"name": "kvt]m\u00c3\u0080Svkv"
},
"3": {
"Id": "264",
"name": "ayqkn\u00c2\u00a1v"
}
},
"6": {
"Id": "265",
"name": "kvs]jy\u00c3\u00b0kv",
"0": {
"Id": "266",
"name": "hm\u00c2\u00a1v]b\u00c3\u00a4v"
},
"1": {
"Id": "267",
"name": "Fs\u00c3\u00a2 \mSv"
},
"2": {
"Id": "268",
"name": "A\phw"
},
"3": {
"Id": "269",
"name": "{]XnIcWw"
},
"4": {
"Id": "270",
"name": "{]XnI\u00c3\u0084"
},
"5": {
"Id": "271",
"name": "Ip\u00c3\u00b3mbva"
},
"6": {
"Id": "272",
"name": "]cnNbw"
}
},
"7": {
"Id": "273",
"name": "tImfwkv",
"0": {
"Id": "274",
"name": "Imgv\u00c2\u00a8I\u00c3\u0084"
},
"1": {
"Id": "275",
"name": "aWntSm\u00c2\u00a1v"
},
"2": {
"Id": "276",
"name": "bm{X"
},
"3": {
"Id": "277",
"name": "FUnt\u00c3\u00a4gvkv"
},
"4": {
"Id": "295",
"name": "Irjn]mTw"
}
},
"8": {
"Id": "278",
"name": "Fgp\u00c2\u00afv",
"0": {
"Id": "279",
"name": "kmlnXyw"
},
"1": {
"Id": "280",
"name": "Ie"
},
"2": {
"Id": "281",
"name": "lmkyw"
},
"3": {
"Id": "282",
"name": "Im\u00c3\u0080\u00c2\u00abq\u00c2\u00ac"
},
"4": {
"Id": "283",
"name": "^o\u00c2\u00a8\u00c3\u0080"
},
"5": {
"Id": "284",
"name": "Adnhv"
}
},
"9": {
"Id": "285",
"name": "tNmtZym\u00c2\u00afcw",
"0": {
"Id": "286",
"name": "C\u00c2\u00bdnt{Kj\u00c2\u00b3"
},
"1": {
"Id": "287",
"name": "km\u00c2\u00bc\u00c2\u00afnIw"
},
"2": {
"Id": "288",
"name": "A\u00c2\u00a1u\u00c3\u00afn\u00c2\u00a7v"
},
"3": {
"Id": "289",
"name": "\nbaw"
}
},
"10": {
"Id": "290",
"name": "BiwkI\u00c3\u0084",
"0": {
"Id": "298",
"name": "hnhml hm\u00c3\u0080jnIw"
},
"1": {
"Id": "299",
"name": "P\u00c3\u00b2Zn\w"
},
"2": {
"Id": "300",
"name": "skent{_j\u00c2\u00b3"
},
"3": {
"Id": "301",
"name": "a\u00c3\u00a4p\u00c3\u0085h"
},
"4": {
"Id": "304",
"name": "BZyIp\u00c3\u0080_m\"}},"11":{"Id":"291","name":"\u00c2\u00a2mknss^Uvkv","0":{"Id":"302","name":"dnb\u00c3\u00b0Ft\u00c3\u008c\u00c3\u00a4v"},"1":{"Id":"303","name":"hn\u00c3\u00b0\u00c2\u00b8\bv\u00c2\u00a1v"},"2":{"Id":"305","name":"Bhiyap\u00c3\u00afv"},"3":{"Id":"306","name":"D
]ImckvacW"},"4":{"Id":"307","name":"Ncahm\u00c3\u0080jnIw"},"5":{"Id":"312","name":"am{
Sn-tam-Wnb\u00c3\u00b0"}}}}
答案 0 :(得分：4)
将此字符串赋予JSONObject构造函数的输入参数。
String str="";//Give your json string here
JSONObject object= new JSONObject(str);
注意：要插入"使用转义序列，请按"添加\"。
答案 1 :(得分：0)
如果您的字符串以“{”开头，则将整个字符串放入
JSONObjectjb=new JSONObject(YourString);//it convert into json object
如果你的字符串从这个“[”开始形成，那么把你的整个字符串放在： -
JSONArray jr=new JSONArray(YourString); //it convert into jsonArray
答案 2 :(得分：0)
只需将字符串作为输入参数传递给JSONObject构造函数。
String test="your json string";
JSONObject object= new JSONObject(test);
您还可以使用Gson：
String test = "your json string";
Gson gson = new Gson();
gson.toJson(test);
这是一个免费的开源JSON解析库，可以与Android一起使用，是的，真的很容易!!
答案 3 :(得分：0)
尝试使用此工具验证您的json字符串：http://jsonlint.com/
我认为您提供了无效的JSON字符串。
要将有效的JSON字符串转换为JSON对象，您可以尝试使用;
JSONObject object = new JSONObject("your valid json string here");
答案 4 :(得分：0)
你的json无效你可以在这里查看jsonviewer.stack.hu
你在JsonArray中遇到第10个元素的问题：
"10": {
"Id": "290",
"name": "BiwkI\u00c3\u0084",
"0": {
"Id": "298",
"name": "hnhml hm\u00c3\u0080jnIw"
},
"1": {
"Id": "299",
"name": "P\u00c3\u00b2Zn\w"
},
"2": {
"Id": "300",
"name": "skent{_j\u00c2\u00b3"
},
"3": {
"Id": "301",
"name": "a\u00c3\u00a4p\u00c3\u0085h"
},
"4": {
"Id": "304",
"name": "BZyIp\u00c3\u0080_m/"
}
},
"name": "BZyIp\u00c3\u0080_m/"，那么 "/"来自此行，那么您将String转换为JSONObject
JSONObject object= new JSONObject(str);
或者这是你的完整有效的json字符串：
{"categories": {
"1": {
"Id": "4",
"name": "hm\u00c3\u0080\u00c2\u00afI\u00c3\u0084",
"0": {
"Id": "250",
"name": "bpsI"
},
"1": {
"Id": "251",
"name": "tIcfw"
},
"2": {
"Id": "252",
"name": "C\u00c2\u00b4y"
},
"3": {
"Id": "253",
"name": "C\u00c2\u00bdnt{Kj\u00c2\u00b3"
},
"4": {
"Id": "254",
"name": "hntZiw"
},
"5": {
"Id": "255",
"name": "{]hmkn"
},
"6": {
"Id": "256",
"name": "Ncaw"
},
"7": {
"Id": "294",
"name": "FUnt\u00c3\u00a4mdnb\u00c3\u00b0"
}
},
"2": {
"Id": "257",
"name": "Atkmkntbj\u00c2\u00b3"
},
"3": {
"Id": "258",
"name": "kv]ncnNz\u00c3\u00b0"
},
"4": {
"Id": "259",
"name": "tlm\u00c2\u00abv Uo\u00c3\u00b0kv",
"0": {
"Id": "308",
"name": "t{Kmkdn"
},
"1": {
"Id": "310",
"name": "CeIvt{SmWnIvkv"
},
"2": {
"Id": "311",
"name": "a\u00c3\u00a4p\u00c3\u0085h"
}
},
"5": {
"Id": "260",
"name": "hnt\mZw",
"0": {
"Id": "261",
"name": "kn\na"
},
"1": {
"Id": "262",
"name": "Nm\\u00c3\u00b0"
},
"2": {
"Id": "263",
"name": "kvt]m\u00c3\u0080Svkv"
},
"3": {
"Id": "264",
"name": "ayqkn\u00c2\u00a1v"
}
},
"6": {
"Id": "265",
"name": "kvs]jy\u00c3\u00b0kv",
"0": {
"Id": "266",
"name": "hm\u00c2\u00a1v]b\u00c3\u00a4v"
},
"1": {
"Id": "267",
"name": "Fs\u00c3\u00a2 \mSv"
},
"2": {
"Id": "268",
"name": "A\phw"
},
"3": {
"Id": "269",
"name": "{]XnIcWw"
},
"4": {
"Id": "270",
"name": "{]XnI\u00c3\u0084"
},
"5": {
"Id": "271",
"name": "Ip\u00c3\u00b3mbva"
},
"6": {
"Id": "272",
"name": "]cnNbw"
}
},
"7": {
"Id": "273",
"name": "tImfwkv",
"0": {
"Id": "274",
"name": "Imgv\u00c2\u00a8I\u00c3\u0084"
},
"1": {
"Id": "275",
"name": "aWntSm\u00c2\u00a1v"
},
"2": {
"Id": "276",
"name": "bm{X"
},
"3": {
"Id": "277",
"name": "FUnt\u00c3\u00a4gvkv"
},
"4": {
"Id": "295",
"name": "Irjn]mTw"
}
},
"8": {
"Id": "278",
"name": "Fgp\u00c2\u00afv",
"0": {
"Id": "279",
"name": "kmlnXyw"
},
"1": {
"Id": "280",
"name": "Ie"
},
"2": {
"Id": "281",
"name": "lmkyw"
},
"3": {
"Id": "282",
"name": "Im\u00c3\u0080\u00c2\u00abq\u00c2\u00ac"
},
"4": {
"Id": "283",
"name": "^o\u00c2\u00a8\u00c3\u0080"
},
"5": {
"Id": "284",
"name": "Adnhv"
}
},
"9": {
"Id": "285",
"name": "tNmtZym\u00c2\u00afcw",
"0": {
"Id": "286",
"name": "C\u00c2\u00bdnt{Kj\u00c2\u00b3"
},
"1": {
"Id": "287",
"name": "km\u00c2\u00bc\u00c2\u00afnIw"
},
"2": {
"Id": "288",
"name": "A\u00c2\u00a1u\u00c3\u00afn\u00c2\u00a7v"
},
"3": {
"Id": "289",
"name": "\nbaw"
}
},
"10": {
"Id": "290",
"name": "BiwkI\u00c3\u0084",
"0": {
"Id": "298",
"name": "hnhml hm\u00c3\u0080jnIw"
},
"1": {
"Id": "299",
"name": "P\u00c3\u00b2Zn\w"
},
"2": {
"Id": "300",
"name": "skent{_j\u00c2\u00b3"
},
"3": {
"Id": "301",
"name": "a\u00c3\u00a4p\u00c3\u0085h"
},
"4": {
"Id": "304",
"name": "BZyIp\u00c3\u0080_m"
}
},
"11":{"Id":"291","name":"\u00c2\u00a2mknss^Uvkv",
"0":{"Id":"302","name":"dnb\u00c3\u00b0Ft\u00c3\u008c\u00c3\u00a4v"},
"1":{"Id":"303","name":"hn\u00c3\u00b0\u00c2\u00b8\bv\u00c2\u00a1v"},
"2":{"Id":"305","name":"Bhiyap\u00c3\u00afv"},
"3":{"Id":"306","name":"D]ImckvacW"},
"4":{"Id":"307","name":"Ncahm\u00c3\u0080jnIw"},
"5":{"Id":"312","name":"am{Sn-tam-Wnb\u00c3\u00b0"}
},
}
}