Android JSON解析并存储到数据库

【问题标题】：Android JSON parsing and store to a databaseAndroid JSON解析并存储到数据库
【发布时间】：2015-04-22 03:54:40
【问题描述】：

我正在制作一个具有数据库的应用程序，现在我正在尝试从中解析数据值：

<stringxmlns="http://layanan.mobilefin/">{
    "kondisi": [
        {
            "Condition": "New",
            "Kondisi": "Baru"
        },
        {
            "Condition": "Used",
            "Kondisi": "Bekas"
        }
    ],
    "Zona": [
        {
            "Zona": "Zona1",
            "Zone": "Zone1"
        },
        {
            "Zona": "Zona2",
            "Zone": "Zone3"
        }
    ],
    "tipeAsuransi": [
        {
            "Type": "Combine"
        },
        {
            "Type": "Comprehensive"
        },
        {
            "Type": "TLO"
        }
    ],
    "Erate": [
        {
            "id": "1",
            "Kondisi": "Baru",
            "Condition": "New",
            "Tenor": "12",
            "ERate": "12",
            "ERateDB": "11.5"
        },
        {
            "id": "10",
            "Kondisi": "Bekas",
            "Condition": "Used",
            "Tenor": "60",
            "ERate": "13.5",
            "ERateDB": "12.9"
        },
        {
            "id": "2",
            "Kondisi": "Baru",
            "Condition": "New",
            "Tenor": "24",
            "ERate": "12.2",
            "ERateDB": "11.6"
        },
        {
            "id": "3",
            "Kondisi": "Baru",
            "Condition": "New",
            "Tenor": "36",
            "ERate": "12.3",
            "ERateDB": "11.7"
        },
        {
            "id": "4",
            "Kondisi": "Baru",
            "Condition": "New",
            "Tenor": "48",
            "ERate": "12.4",
            "ERateDB": "11.8"
        },
        {
            "id": "5",
            "Kondisi": "Baru",
            "Condition": "New",
            "Tenor": "60",
            "ERate": "12.5",
            "ERateDB": "11.9"
        },
        {
            "id": "6",
            "Kondisi": "Bekas",
            "Condition": "Used",
            "Tenor": "12",
            "ERate": "13",
            "ERateDB": "12.5"
        },
        {
            "id": "7",
            "Kondisi": "Bekas",
            "Condition": "Used",
            "Tenor": "24",
            "ERate": "13.2",
            "ERateDB": "12.6"
        },
        {
            "id": "8",
            "Kondisi": "Bekas",
            "Condition": "Used",
            "Tenor": "36",
            "ERate": "13.3",
            "ERateDB": "12.7"
        },
        {
            "id": "9",
            "Kondisi": "Bekas",
            "Condition": "Used",
            "Tenor": "48",
            "ERate": "13.4",
            "ERateDB": "12.8"
        }
    ],
    "Arate": [
        {
            "id": "1",
            "Zona": "1",
            "Tenor": "12",
            "TLORate": "1.1",
            "CompRate": "2.1",
            "CombRate": "3.1"
        },
        {
            "id": "10",
            "Zona": "2",
            "Tenor": "60",
            "TLORate": "2.0",
            "CompRate": "3.0",
            "CombRate": "4.0"
        },
        {
            "id": "11",
            "Zona": "3",
            "Tenor": "12",
            "TLORate": "2.1",
            "CompRate": "3.1",
            "CombRate": "4.1"
        },
        {
            "id": "12",
            "Zona": "3",
            "Tenor": "24",
            "TLORate": "2.2",
            "CompRate": "3.2",
            "CombRate": "4.2"
        },
        {
            "id": "13",
            "Zona": "3",
            "Tenor": "36",
            "TLORate": "2.3",
            "CompRate": "3.3",
            "CombRate": "4.3"
        },
        {
            "id": "14",
            "Zona": "3",
            "Tenor": "48",
            "TLORate": "2.4",
            "CompRate": "3.4",
            "CombRate": "4.4"
        },
        {
            "id": "15",
            "Zona": "3",
            "Tenor": "60",
            "TLORate": "2.5",
            "CompRate": "3.5",
            "CombRate": "4.5"
        },
        {
            "id": "2",
            "Zona": "1",
            "Tenor": "24",
            "TLORate": "1.2",
            "CompRate": "2.2",
            "CombRate": "3.2"
        },
        {
            "id": "3",
            "Zona": "1",
            "Tenor": "36",
            "TLORate": "1.3",
            "CompRate": "2.3",
            "CombRate": "3.3"
        },
        {
            "id": "4",
            "Zona": "1",
            "Tenor": "48",
            "TLORate": "1.4",
            "CompRate": "2.4",
            "CombRate": "3.4"
        },
        {
            "id": "5",
            "Zona": "1",
            "Tenor": "60",
            "TLORate": "1.5",
            "CompRate": "2.5",
            "CombRate": "3.5"
        },
        {
            "id": "6",
            "Zona": "2",
            "Tenor": "12",
            "TLORate": "1.6",
            "CompRate": "2.6",
            "CombRate": "3.6"
        },
        {
            "id": "7",
            "Zona": "2",
            "Tenor": "24",
            "TLORate": "1.7",
            "CompRate": "2.7",
            "CombRate": "3.7"
        },
        {
            "id": "8",
            "Zona": "2",
            "Tenor": "36",
            "TLORate": "1.8",
            "CompRate": "2.8",
            "CombRate": "3.8"
        },
        {
            "id": "9",
            "Zona": "2",
            "Tenor": "48",
            "TLORate": "1.9",
            "CompRate": "2.9",
            "CombRate": "3.9"
        }
    ]
}</string>

由于这个原因，我在转换 JSON 对象时遇到错误

<stringxmlns="http://layanan.mobilefin/">.......</string>

日志猫：

04-22 10:14:29.631: D/dalvikvm(366): GC_EXTERNAL_ALLOC freed 120K, 49% free 2894K/5639K, external 3101K/3366K, paused 419ms
04-22 10:14:31.962: D/Response:(366): > <?xml version="1.0" encoding="utf-8"?>

04-22 10:14:31.962: D/Response:(366): <string xmlns="http://layanan.mobilefin/">{

04-22 10:14:31.962: D/Response:(366):   "kondisi": [

04-22 10:14:31.962: D/Response:(366):     {

04-22 10:14:31.962: D/Response:(366):       "Condition": "New",

04-22 10:14:31.962: D/Response:(366):       "Kondisi": "Baru"

04-22 10:14:31.962: D/Response:(366):     },

04-22 10:14:31.962: D/Response:(366):     {

04-22 10:14:31.962: D/Response:(366):       "Condition": "Used",

04-22 10:14:31.962: D/Response:(366):       "Kondisi": "Bekas"

04-22 10:14:31.962: D/Response:(366):     }

04-22 10:14:31.962: D/Response:(366):   ],

04-22 10:14:31.962: D/Response:(366):   "Zona": [

04-22 10:14:31.962: D/Response:(366):     {

04-22 10:14:31.962: D/Response:(366):       "Zona": "Zona1",

04-22 10:14:31.962: D/Response:(366):       "Zone": "Zone1"

04-22 10:14:31.962: D/Response:(366):     },

04-22 10:14:31.962: D/Response:(366):     {

04-22 10:14:31.962: D/Response:(366):       "Zona": "Zona2",

04-22 10:14:31.962: D/Response:(366):       "Zone": "Zone3"

04-22 10:14:31.962: D/Response:(366):     }

04-22 10:14:31.962: D/Response:(366):   ],

04-22 10:14:31.962: D/Response:(366):   "tipeAsuransi": [

04-22 10:14:31.962: D/Response:(366):     {

04-22 10:14:31.962: D/Response:(366):       "Type": "Combine"

04-22 10:14:31.962: D/Response:(366):     },

04-22 10:14:31.962: D/Response:(366):     {

04-22 10:14:31.962: D/Response:(366):       "Type": "Comprehensive"

04-22 10:14:31.962: D/Response:(366):     },

04-22 10:14:31.962: D/Response:(366):     {

04-22 10:14:31.962: D/Response:(366):       "Type": "TLO"

04-22 10:14:31.962: D/Response:(366):     }

04-22 10:14:31.962: D/Response:(366):   ],

04-22 10:14:31.962: D/Response:(366):   "Erate": [

04-22 10:14:31.962: D/Response:(366):     {

04-22 10:14:31.962: D/Response:(366):       "id": "1",

04-22 10:14:31.962: D/Response:(366):       "Kondisi": "Baru",

04-22 10:14:31.962: D/Response:(366):       "Condition": "New",

04-22 10:14:31.962: D/Response:(366):       "Tenor": "12",

04-22 10:14:31.962: D/Response:(366):       "ERate": "12",

04-22 10:14:31.962: D/Response:(366):       "ERateDB": "11.5"

04-22 10:14:31.962: D/Response:(366):     },

04-22 10:14:31.962: D/Response:(366):     {

04-22 10:14:31.962: D/Response:(366):       "id": "10",

04-22 10:14:31.962: D/Response:(366):       "Kondisi": "Bekas",

04-22 10:14:31.962: D/Response:(366):       "Condition": "Used",

04-22 10:14:31.962: D/Response:(366):       "Tenor": "60",

04-22 10:14:31.962: D/Response:(366):       "ERate": "13.5",

04-22 10:14:31.962: D/Response:(366):       "ERateDB": "12.9"

04-22 10:14:31.962: D/Response:(366):     },

04-22 10:14:31.962: D/Response:(366):     {

04-22 10:14:31.962: D/Response:(366):       "id": "2",

04-22 10:14:31.962: D/Response:(366):       "Kondisi": "Baru",

04-22 10:14:31.962: D/Response:(366):       "Condition": "New",

04-22 10:14:31.962: D/Response:(366):       "Tenor": "24",

04-22 10:14:31.962: D/Response:(366):       "ERate": "12.2",

04-22 10:14:31.962: D/Response:(366):       "ERateDB": "11.6"

04-22 10:14:31.962: D/Response:(366):     },

04-22 10:14:31.962: D/Response:(366):     {

04-22 10:14:31.962: D/Response:(366):       "id": "3",

04-22 10:14:31.962: D/Response:(366):       "Kondisi": "Baru",

04-22 10:14:31.962: D/Response:(366):       "Condition": "New",

04-22 10:14:31.962: D/Response:(366):       "Tenor": "36",

04-22 10:14:31.962: D/Response:(366):       "ERate": "12.3",

04-22 10:14:31.962: D/Response:(366):       "ERateDB": "11.7"

04-22 10:14:31.962: D/Response:(366):     },

04-22 10:14:31.962: D/Response:(366):     {

04-22 10:14:31.962: D/Response:(366):       "id": "4",

04-22 10:14:31.962: D/Response:(366):       "Kondisi": "Baru",

04-22 10:14:31.962: D/Response:(366):       "Condition": "New",

04-22 10:14:31.962: D/Response:(366):       "Tenor": "48",

04-22 10:14:31.962: D/Response:(366):       "ERate": "12.4",

04-22 10:14:31.962: D/Response:(366):       "ERateDB": "11.8"

04-22 10:14:31.962: D/Response:(366):     },

04-22 10:14:31.962: D/Response:(366):     {

04-22 10:14:31.962: D/Response:(366):       "id": "5",

04-22 10:14:31.962: D/Response:(366):       "Kondisi": "Baru",

04-22 10:14:31.962: D/Response:(366):       "Condition": "New",

04-22 10:14:31.962: D/Response:(366):       "Tenor": "60",

04-22 10:14:31.962: D/Response:(366):       "ERate": "12.5",

04-22 10:14:31.962: D/Response:(366):       "ERateDB": "11.9"

04-22 10:14:31.962: D/Response:(366):     },

04-22 10:14:31.962: D/Response:(366):     {

04-22 10:14:31.962: D/Response:(366):       "id": "6",

04-22 10:14:31.962: D/Response:(366):       "Kondisi": "Bekas",

04-22 10:14:31.962: D/Response:(366):       "Condition": "Used",

04-22 10:14:31.962: D/Response:(366):       "Tenor": "12",

04-22 10:14:31.962: D/Response:(366):       "ERate": "13",

04-22 10:14:31.962: D/Response:(366):       "ERateDB": "12.5"

04-22 10:14:31.962: D/Response:(366):     },

04-22 10:14:31.962: D/Response:(366):     {

04-22 10:14:31.962: D/Response:(366):       "id": "7",

04-22 10:14:31.962: D/Response:(366):       "Kondisi": "Bekas",

04-22 10:14:31.962: D/Response:(366):       "Condition": "Used",

04-22 10:14:31.962: D/Response:(366):       "Tenor": "24",

04-22 10:14:31.962: D/Response:(366):       "ERate": "13.2",

04-22 10:14:31.962: D/Response:(366):       "ERateDB": "12.6"

04-22 10:14:31.962: D/Response:(366):     },

04-22 10:14:31.962: D/Response:(366):     {

04-22 10:14:31.962: D/Response:(366):       "id": "8",

04-22 10:14:31.962: D/Response:(366):       "Kondisi": "Bekas",

04-22 10:14:31.962: D/Response:(366):       "Condition": "Used",

04-22 10:14:31.962: D/Response:(366):       "Tenor": "36",

04-22 10:14:31.962: D/Response:(366):       "ERate": "13.3",

04-22 10:14:31.962: D/Response:(366):       "ERateDB": "12.7"

04-22 10:14:31.962: D/Response:(366):     },

04-22 10:14:31.962: D/Response:(366):     {

04-22 10:14:31.962: D/Response:(366):       "id": "9",

04-22 10:14:31.962: D/Response:(366):       "Kondisi": "Bekas",

04-22 10:14:31.962: D/Response:(366):       "Condition": "Used",

04-22 10:14:31.962: D/Response:(366):       "Tenor": "48",

04-22 10:14:31.962: D/Response:(366):       "ERate": "13.4",

04-22 10:14:31.962: D/Response:(366):       "ERateDB": "12.8"

04-22 10:14:31.962: D/Response:(366):     }

04-22 10:14:31.962: D/Response:(366):   ],

04-22 10:14:31.962: D/Response:(366):   "Arate": [

04-22 10:14:31.962: D/Response:(366):     {

04-22 10:14:31.962: D/Response:(366):       "id": "1",

04-22 10:14:31.962: D/Response:(366):       "Zona": "1",

04-22 10:14:31.962: D/Response:(366):       "Tenor": "12",

04-22 10:14:31.962: D/Response:(366):       "TLORate": "1.1",

04-22 10:14:31.962: D/Response:(366):       "CompRate": "2.1",

04-22 10:14:31.962: D/Response:(366):       "CombRate": "3.1"

04-22 10:14:31.962: D/Response:(366):     },

04-22 10:14:31.962: D/Response:(366):     {

04-22 10:14:31.962: D/Response:(366):       "id": "10",

04-22 10:14:31.962: D/Response:(366):       "Zona": "2",

04-22 10:14:31.962: D/Response:(366):       "Tenor": "60",

04-22 10:14:31.962: D/Response:(366):       "TLORate": "2.0",

04-22 10:14:31.962: D/Response:(366):       "CompRate": "3.0",

04-22 10:14:31.962: D/Response:(366):       "CombRate": "4.0"

04-22 10:14:31.962: D/Response:(366):     },

04-22 10:14:31.962: D/Response:(366):     {

04-22 10:14:31.962: D/Response:(366):       "id": "11",

04-22 10:14:31.962: D/Response:(366):       "Zona": "3",

04-22 10:14:31.962: D/Response:(366):       "Tenor": "12",

04-22 10:14:31.962: D/Response:(366):       "TLORate": "2.1",

04-22 10:14:31.962: D/Response:(366):       "CompRate": "3.1",

04-22 10:14:31.962: D/Response:(366):       "CombRate": "4.1"

04-22 10:14:31.962: D/Response:(366):     },

04-22 10:14:31.962: D/Response:(366):     {

04-22 10:14:31.962: D/Response:(366):       "id": "12",

04-22 10:14:31.962: D/Response:(366):       "Zona": "3",

04-22 10:14:31.962: D/Response:(366):       "Tenor": "24",

04-22 10:14:31.962: D/Response:(366):       "TLORate": "2.2",

04-22 10:14:31.962: D/Response:(366):       "CompRate": "3.2",

04-22 10:14:31.962: D/Response:(366):       "CombRate": "4.2"

04-22 10:14:31.962: D/Response:(366):     },

04-22 10:14:31.962: D/Response:(366):     {

04-22 10:14:31.962: D/Response:(366):       "id": "13",

04-22 10:14:31.962: D/Response:(366):       "Zona": "3",

04-22 10:14:31.962: D/Response:(366):       "Tenor": "36",

04-22 10:14:31.962: D/Response:(366):       "TLORate": "2.3",

04-22 10:14:31.962: D/Response:(366):       "CompRate": "3.3",

04-22 10:14:31.962: D/Response:(366):       "CombRate": "4.3"

04-22 10:14:31.962: D/Response:(366):     },

04-22 10:14:31.962: D/Response:(366):     {

04-22 10:14:31.962: D/Response:(366):       "id": "14",

04-22 10:14:31.962: D/Response:(366):       "Zona": "3",

04-22 10:14:31.962: D/Response:(366):       "Tenor": "48",

04-22 10:14:31.962: D/Response:(366):       "TLORate": "2.4",

04-22 10:14:31.962: D/Response:(366):       "CompRate": "3.4",

04-22 10:14:31.962: D/Response:(366):       "CombRate": "4.4"

04-22 10:14:31.962: D/Response:(366):     },

04-22 10:14:31.962: D/Response:(366):     {

04-22 10:14:31.962: D/Response:(366):       "id": "15",

04-22 10:14:31.962: D/Response:(366):       "Zona": "3",

04-22 10:14:31.962: D/Response:(366):       "Tenor": "60",

04-22 10:14:31.962: D/Response:(366):       "TLORate": "2.5",

04-22 10:14:31.962: D/Response:(366):       "CompRate": "3.5",

04-22 10:14:31.962: D/Response:(366):       "CombRate": "4.5"

04-22 10:14:31.962: D/Response:(366):     },

04-22 10:14:31.962: D/Response:(366):     {

04-22 10:14:31.962: D/Response:(366):       "id": "2",

04-22 10:14:31.962: D/Response:(366):       "Zona": "1",

04-22 10:14:31.962: D/Response:(366):       "Tenor": "24",

04-22 10:14:31.962: D/Response:(366):       "TLORate": "1.2",

04-22 10:14:31.962: D/Response:(366):       "CompRate": "2.2",

04-22 10:14:31.962: D/Response:(366):       "CombRate": "3.2"

04-22 10:14:31.962: D/Response:(366):     },

04-22 10:14:31.962: D/Response:(366):     {

04-22 10:14:31.962: D/Response:(366):       "id": "3",

04-22 10:14:31.962: D/Response:(366):       "Zona": "1",

04-22 10:14:31.962: D/Response:(366):       "Tenor": "36",

04-22 10:14:31.962: D/Response:(366):       "TLORate": "1.3",

04-22 10:14:31.962: D/Response:(366):       "CompRate": "2.3",

04-22 10:14:31.962: D/Response:(366):       "CombRate": "3.3"

04-22 10:14:31.962: D/Response:(366):     },

04-22 10:14:31.962: D/Response:(366):     {

04-22 10:14:31.962: D/Response:(366):       "id": "4",

04-22 10:14:31.962: D/Response:(366):       "Zona": "1",

04-22 10:14:31.962: D/Response:(366):       "Tenor": "48",

04-22 10:14:31.962: D/Response:(366):       "TLORate": "1.4",

04-22 10:14:31.962: D/Response:(366):       "CompRate": "2.4",

04-22 10:14:31.962: D/Response:(366):       "CombRate": "3.4"

04-22 10:14:31.962: D/Response:(366):     },

04-22 10:14:31.962: D/Response:(366):     {

04-22 10:14:31.962: D/Response:(366):       "id": "5",

04-22 10:14:31.962: D/Response:(366):       "Zona": "1",

04-22 10:14:31.962: D/Response:(366):       "Tenor": "60",

04-22 10:14:31.962: D/Response:(366):       "TLORate": "1.5",

04-22 10:14:31.962: D/Response:(366):       "CompRate": "2.5",

04-22 10:14:31.962: D/Response:(366):       "CombRate": "3.5"

04-22 10:14:31.962: D/Response:(366):     },

04-22 10:14:31.962: D/Response:(366):     {

04-22 10:14:31.962: D/Response:(366):       "id": "6",

04-22 10:14:31.962: D/Response:(366):       "Zona": "2",

04-22 10:14:31.962: D/Response:(366):       "Tenor": "12",

04-22 10:14:31.962: D/Response:(366):       "TLORate": "1.6",

04-22 10:14:31.962: D/Response:(366):       "CompRate": "2.6",

04-22 10:14:31.962: D/Response:(366):       "CombRate": "3.6"

04-22 10:14:31.962: D/Response:(366):     },

04-22 10:14:31.962: D/Response:(366):     {

04-22 10:14:31.962: D/Response:(366):       "id": "7",

04-22 10:14:31.962: D/Response:(366):       "Zona": "2",

04-22 10:14:31.962: D/Response:(366):       "Tenor": "24",

04-22 10:14:31.962: D/Response:(366):       "TLORate": "1.7",

04-22 10:14:31.962: D/Response:(366):       "Co
04-22 10:14:32.162: W/System.err(366): org.json.JSONException: Value <?xml of type java.lang.String cannot be converted to JSONObject
04-22 10:14:32.262: W/System.err(366):  at org.json.JSON.typeMismatch(JSON.java:107)
04-22 10:14:32.372: W/System.err(366):  at org.json.JSONObject.<init>(JSONObject.java:158)
04-22 10:14:32.372: W/System.err(366):  at org.json.JSONObject.<init>(JSONObject.java:171)
04-22 10:14:32.372: W/System.err(366):  at www.mandiritunasfinancemobile.co.id.a1s2d3f4g5h6j7k8l9.p0.comcom.MainActivity$GetDatas.doInBackground(MainActivity.java:96)
04-22 10:14:32.372: W/System.err(366):  at www.mandiritunasfinancemobile.co.id.a1s2d3f4g5h6j7k8l9.p0.comcom.MainActivity$GetDatas.doInBackground(MainActivity.java:1)
04-22 10:14:32.372: W/System.err(366):  at android.os.AsyncTask$2.call(AsyncTask.java:185)
04-22 10:14:32.412: W/System.err(366):  at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:306)
04-22 10:14:32.412: W/System.err(366):  at java.util.concurrent.FutureTask.run(FutureTask.java:138)
04-22 10:14:32.432: W/System.err(366):  at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1088)
04-22 10:14:32.471: W/System.err(366):  at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:581)
04-22 10:14:32.471: W/System.err(366):  at java.lang.Thread.run(Thread.java:1019)
04-22 10:17:06.842: W/KeyCharacterMap(366): No keyboard for id 0
04-22 10:17:06.842: W/KeyCharacterMap(366): Using default keymap: /system/usr/keychars/qwerty.kcm.bin
04-22 10:17:12.582: D/dalvikvm(366): GC_EXPLICIT freed 296K, 51% free 2893K/5895K, external 4577K/5209K, paused 51ms

更新：我获取数据和存储的方法：

JSONParser jParser = new JSONParser();
JSONObject json = jParser.getJSONFromUrl(url);
// TODO Auto-generated method stub

JSONArray Erate= json.getJSONArray("Erates");

if (Erate != null)
{
    // looping through All Contacts
    for(int i = 0; i < Erate.length(); i++)
    {
        JSONObject c = Erate.getJSONObject(i);
        Cursor cr = db.rawQuery("select * from `rates` where `id`='"+c.getString("id")+"'",null);

        String query = "Insert into rates(id, kondisi, condition, tenor, erate, erateDB)"+
                       "values("+
                            c.getString("id")+",'"+
                            c.getString("....")
                            +"')";

        db.execSQL(query);
        Log.d("Insert", query);

        cr.close();}
    }

任何建议如何使它工作？

【问题讨论】：

  • 是 JSON 数据吗？您的第一个标签显示它是一个 xml 数据。
  • 上面的json字符串替换为空字符串，如：jsonstr.replace("layanan.mobilefin\">","");和 jsonstr.replace("","");然后你可以轻松地将字符串转换为 json。
  • 问题在于 json 数据本身，您有在 xml 中使用的标签，因为它不是 Json 数据开头，请尝试删除 "layanan.mobilefin/"></string>"
  • @PiyushGupta 是的，在里面。
  • @prakash 你能举个例子吗？

标签： android json


【解决方案1】：

我认为从 JSON 响应 url 生成子字符串并获得有效 JSON 响应的逻辑

代码如下：

int start = url.indexOf("{");   // index from where valid json starts
int end = url.lastIndexOf("}"); // index where valid json completes

// get valid json string by substring method
String validJson = url.substring( start, end+1);

【讨论】：

  • end+1 是什么意思？
  • end +1 是 }... 的索引之后的下一个索引，根据 substring 方法，end 索引将是独占的.. 所以我们应该在那里给出 index+1
  • 不，不是。或者，也许我以错误的方式使用它。我试过的 -->>ServiceHandler sh = new ServiceHandler(); String jsonStr = sh.makeServiceCall(url, ServiceHandler.GET);
  • start 和 end 整数的值是多少？
  • 这些 int start = url.indexOf("{"); int end = url.lastIndexOf("}");我按照上面的代码做
【解决方案2】：

不要使用 Json Parser，而是尝试使用 Gson 库将 Json 转换为 String，反之亦然。有关详细示例，请参阅此answer。 您可以使用所需的所有信息创建一个类，然后使用 Gson 对其进行序列化，以获得格式完美的 Json 文件格式。像魅力一样工作。

【讨论】：

    【解决方案3】：

    感谢prakash 和Pankaj Nimgade，我找到了解决方案。解决方案是将xml字符串替换为“”（空）。

    ServiceHandler sh = new ServiceHandler();

            // Making a request to url and getting response
            String jsonStr = sh.makeServiceCall(url, ServiceHandler.GET);
            jsonStr = jsonStr.replace(
                    "<?xml version=\"1.0\" encoding=\"utf-8\"?>", "");
            jsonStr = jsonStr.replace("<string>", "");
            jsonStr = jsonStr.replace("</string>", "");
            // Log.d("Response: ", "> " + jsonStr);

    【讨论】：

    • 这与我在 4 月 22 日提供的逻辑上相同的解决方案
    猜你喜欢
    • 1970-01-01
    • 2013-02-22
    • 1970-01-01
    • 1970-01-01
    • 1970-01-01
    • 2020-10-04
    • 1970-01-01
    • 2017-08-26
    • 1970-01-01
    相关资源
    最近更新 更多
    热门标签
    Java Python linux javascript Mysql C# Docker 算法 前端 SpringBoot Redis Vue spring 设计模式 .net core .net kubernetes c++ 数据库 数据结构 大数据 js 机器学习 微服务 Android Go 程序员 面试 JVM ASP.net core 云原生 人工智能 后端 PHP git CSS golang k8s Nginx Django mybatis 深度学习 多线程 React 架构 devops 爬虫 云计算 Spring Boot LeetCode