Java JSON数组字符串到JSON数组_Java_Android_Json_Exception_Gson

Java JSON数组字符串到JSON数组

java android json exception

Java JSON数组字符串到JSON数组,java,android,json,exception,gson,Java,Android,Json,Exception,Gson,我从web服务收到一个字符串，如下所示 [ { "id": "AEC56A1C-E590-4CCE-B3DD-7AFF8FEE9216", "itemname": "tyuytuytuytuytutyu", "itemdescription": "hdfg dag dg sd gsg sdg sdg sg sgd", "itemprice": 40, "specialprice": 0, "i

我从web服务收到一个字符串，如下所示

[
    {
        "id": "AEC56A1C-E590-4CCE-B3DD-7AFF8FEE9216",
        "itemname": "tyuytuytuytuytutyu",
        "itemdescription": "hdfg dag dg sd gsg sdg sdg sg sgd",
        "itemprice": 40,
        "specialprice": 0,
        "itemimageurl": "no-url",
        "catid": "6A1A4E13-6AFD-44DD-998D-3A51E35C2C23",
        "status": true,
        "itemlongname": "yutyuyut",
        "iscombodeal": false
    },
    {
        "id": "E29249B2-E620-487C-9D66-1BC07A1B1D93",
        "itemname": "rrrr",
        "itemdescription": "rrrrr",
        "itemprice": 20,
        "specialprice": 0,
        "itemimageurl": "no-url",
        "catid": "6A1A4E13-6AFD-44DD-998D-3A51E35C2C23",
        "status": true,
        "itemlongname": "rrrr",
        "iscombodeal": false
    },
    {
        "id": "D273D888-0526-4487-8113-6405C8E216D5",
        "itemname": "vTD",
        "itemdescription": "vTDvTD",
        "itemprice": 0,
        "specialprice": 0,
        "itemimageurl": "no-url",
        "catid": "6A1A4E13-6AFD-44DD-998D-3A51E35C2C23",
        "status": true,
        "itemlongname": "vTD",
        "iscombodeal": false
    },
    {
        "id": "DF6DC5E3-25E9-4D57-89F4-C2BA8A719866",
        "itemname": "NO option",
        "itemdescription": "NO option",
        "itemprice": 45.78,
        "specialprice": 0,
        "itemimageurl": "no-url",
        "catid": "6A1A4E13-6AFD-44DD-998D-3A51E35C2C23",
        "status": true,
        "itemlongname": "NO option",
        "iscombodeal": false
    },
    {
        "id": "AD1739A6-B50A-4780-B71E-9E4E98AF19B5",
        "itemname": "ttttt",
        "itemdescription": "tttt",
        "itemprice": 12,
        "specialprice": 0,
        "itemimageurl": "no-url",
        "catid": "6A1A4E13-6AFD-44DD-998D-3A51E35C2C23",
        "status": true,
        "itemlongname": "tttttt",
        "iscombodeal": false
    },
    {
        "id": "C3206E79-BD92-4F49-B291-C57EB36AFCCC",
        "itemname": "Marinara (Seafood)",
        "itemdescription": "(Anchovies optional), shrimps, crab, mussels, squids, mozzarella",
        "itemprice": 0,
        "specialprice": 0,
        "itemimageurl": "no-url",
        "catid": "9960CA1F-46D3-4532-95E7-84F75B3771FE",
        "status": true,
        "itemlongname": "Marinara (Seafood)",
        "iscombodeal": false
    },
    {
        "id": "FD3603B9-1175-463F-A6AD-CCF1141E135D",
        "itemname": "Hawaiian",
        "itemdescription": "Double ham, double pineapple, mozzarella",
        "itemprice": 0,
        "specialprice": 0,
        "itemimageurl": "no-url",
        "catid": "9960CA1F-46D3-4532-95E7-84F75B3771FE",
        "status": true,
        "itemlongname": "Hawaiian",
        "iscombodeal": false
    },
    {
        "id": "9C34BAA6-85ED-4E49-A0A5-B99EF88472EC",
        "itemname": "Siliciana",
        "itemdescription": "Salami, onions, capsicum, mushroom, tomato, mozzarella",
        "itemprice": 0,
        "specialprice": 0,
        "itemimageurl": "no-url",
        "catid": "9960CA1F-46D3-4532-95E7-84F75B3771FE",
        "status": true,
        "itemlongname": "Siliciana (Olives optional)",
        "iscombodeal": false
    },
    {
        "id": "4E024FDF-46F1-4E91-A26F-468E3C7804A0",
        "itemname": "Hot Hot",
        "itemdescription": "Salami, onion, fresh garlic, chilli, parmesan cheese, mozzarella and jalapeno",
        "itemprice": 0,
        "specialprice": 0,
        "itemimageurl": "no-url",
        "catid": "9960CA1F-46D3-4532-95E7-84F75B3771FE",
        "status": true,
        "itemlongname": "Hot Hot",
        "iscombodeal": false
    },
    {
        "id": "C0EC7736-3AB1-4D52-AE47-97D01BEA8A9C",
        "itemname": "Meat Treat",
        "itemdescription": "(BBQ sauce optional) ham, salami, bacon, cabanossi, mozzarella",
        "itemprice": 0,
        "specialprice": 0,
        "itemimageurl": "no-url",
        "catid": "9960CA1F-46D3-4532-95E7-84F75B3771FE",
        "status": true,
        "itemlongname": "Meat Treat",
        "iscombodeal": false
    },
    {
        "id": "0B6E4A06-9865-4A88-AAFC-1C45F688B4C9",
        "itemname": "Pizza to Go Special",
        "itemdescription": "Ham, salami, onion, pineapple, mushrooms, capsicum, mozzarella",
        "itemprice": 0,
        "specialprice": 0,
        "itemimageurl": "no-url",
        "catid": "9960CA1F-46D3-4532-95E7-84F75B3771FE",
        "status": true,
        "itemlongname": "Pizza to Go Special",
        "iscombodeal": false
    },
    {
        "id": "E54F3F0B-7E07-4D6A-BAE4-6C8B8B87210D",
        "itemname": "Capriciosa",
        "itemdescription": "salami, mushroom, tomato and mozzarella",
        "itemprice": 0,
        "specialprice": 0,
        "itemimageurl": "no-url",
        "catid": "9960CA1F-46D3-4532-95E7-84F75B3771FE",
        "status": true,
        "itemlongname": "Capriciosa",
        "iscombodeal": false
    }
]

现在我想把它改成jArray（GSON libraray）。变量

itemsJsonString

保存通过web服务接收的字符串

JsonArray jArray = new JsonArray();
JsonPrimitive element = new JsonPrimitive(gson.toJson(itemsJsonString));
jArray.add(element);

当我运行上述代码时，我得到的是Illegalstateexception，而不是jSON对象错误

这是一个堆栈跟踪

05-23 12:27:14.443: E/AndroidRuntime(26697): FATAL EXCEPTION: main
05-23 12:27:14.443: E/AndroidRuntime(26697): java.lang.RuntimeException: Unable to start activity ComponentInfo{com.proitzen.pizzatogo/com.proitzen.pizzatogo.ItemActivity}: 

java.lang.IllegalStateException: Not a JSON Object: "\"[{\\\"id\\\":\\\"AEC56A1C-E590-4CCE-B3DD-7AFF8FEE9216\\\",\\\"itemname\\\":\\\"tyuytuytuytuytutyu\\\",\\\"itemdescription\\\":\\\"hdfg dag dg sd gsg sdg sdg sg sgd\\\",\\\"itemprice\\\":40,\\\"specialprice\\\":0,\\\"itemimageurl\\\":\\\"no-url\\\",\\\"catid\\\":\\\"6A1A4E13-6AFD-44DD-998D-3A51E35C2C23\\\",\\\"status\\\":true,\\\"itemlongname\\\":\\\"yutyuyut\\\",\\\"iscombodeal\\\":false},{\\\"id\\\":\\\"E29249B2-E620-487C-9D66-1BC07A1B1D93\\\",\\\"itemname\\\":\\\"rrrr\\\",\\\"itemdescription\\\":\\\"rrrrr\\\",\\\"itemprice\\\":20,\\\"specialprice\\\":0,\\\"itemimageurl\\\":\\\"no-url\\\",\\\"catid\\\":\\\"6A1A4E13-6AFD-44DD-998D-3A51E35C2C23\\\",\\\"status\\\":true,\\\"itemlongname\\\":\\\"rrrr\\\",\\\"iscombodeal\\\":false},{\\\"id\\\":\\\"D273D888-0526-4487-8113-6405C8E216D5\\\",\\\"itemname\\\":\\\"vTD\\\",\\\"itemdescription\\\":\\\"vTDvTD\\\",\\\"itemprice\\\":0,\\\"specialprice\\\":0,\\\"itemimageurl\\\":\\\"no-url\\\",\\\"catid\\\":\\\"6A1A4E13-6AFD-44DD-998D-3A51E35C2C23\\\",\\\"status\\\":true,\\\"itemlongname\\\":\\\"vTD\\\",\\\"iscombodeal\\\":false},{\\\"id\\\":\\\"DF6DC5E3-25E9-4D57-89F4-C2BA8A719866\\\",\\\"itemname\\\":\\\"NO option\\\",\\\"itemdescription\\\":\\\"NO option\\\",\\\"itemprice\\\":45.78,\\\"specialprice\\\":0,\\\"itemimageurl\\\":\\\"no-url\\\",\\\"catid\\\":\\\"6A1A4E13-6AFD-44DD-998D-3A51E35C2C23\\\",\\\"status\\\":true,\\\"itemlongname\\\":\\\"NO option\\\",\\\"iscombodeal\\\":false},{\\\"id\\\":\\\"AD1739A6-B50A-4780-B71E-9E4E98AF19B5\\\",\\\"itemname\\\":\\\"ttttt\\\",\\\"itemdescription\\\":\\\"tttt\\\",\\\"itemprice\\\":12,\\\"specialprice\\\":0,\\\"itemimageurl\\\":\\\"no-url\\\",\\\"catid\\\":\\\"6A1A4E13-6AFD-44DD-998D-3A51E35C2C23\\\",\\\"status\\\":true,\\\"itemlongname\\\":\\\"tttttt\\\",\\\"iscombodeal\\\":false},{\\\"id\\\":\\\"C3206E79-BD92-4F49-B291-C57EB36AFCCC\\\",\\\"itemname\\\":\\\"Marinara (Seafood)\\\",\\\"itemdescription\\\":\\\"(Anchovies optional), shrimps, crab, mussels, squids, mozzarella\\\",\\\"itemprice\\\":0,\\\"specialprice\\\":0,\\\"itemimageurl\\\":\\\"no-url\\\",\\\"catid\\\":\\\"9960CA1F-46D3-4532-95E7-84F75B3771FE\\\",\\\"status\\\":true,\\\"itemlongname\\\":\\\"Marinara (Seafood)\\\",\\\"iscombodeal\\\":false},{\\\"id\\\":\\\"FD3603B9-1175-463F-A6AD-CCF1141E135D\\\",\\\"itemname\\\":\\\"Hawaiian\\\",\\\"itemdescription\\\":\\\"Double ham, double pineapple, mozzarella\\\",\\\"itemprice\\\":0,\\\"specialprice\\\":0,\\\"itemimageurl\\\":\\\"no-url\\\",\\\"catid\\\":\\\"9960CA1F-46D3-4532-95E7-84F75B3771FE\\\",\\\"status\\\":true,\\\"itemlongname\\\":\\\"Hawaiian\\\",\\\"iscombodeal\\\":false},{\\\"id\\\":\\\"9C34BAA6-85ED-4E49-A0A5-B99EF88472EC\\\",\\\"itemname\\\":\\\"Siliciana\\\",\\\"itemdescription\\\":\\\"Salami, onions, capsicum, mushroom, tomato, mozzarella\\\",\\\"itemprice\\\":0,\\\"specialprice\\\":0,\\\"itemimageurl\\\":\\\"no-url\\\",\\\"catid\\\":\\\"9960CA1F-46D3-4532-95E7-84F75B3771FE\\\",\\\"status\\\":true,\\\"itemlongname\\\":\\\"Siliciana (Olives optional)\\\",\\\"iscombodeal\\\":false},{\\\"id\\\":\\\"4E024FDF-46F1-4E91-A26F-468E3C7804A0\\\",\\\"itemname\\\":\\\"Hot Hot\\\",\\\"itemdescription\\\":\\\"Salami, onion, fresh garlic, chilli, parmesan cheese, mozzarella and jalapeno\\\",\\\"itemprice\\\":0,\\\"specialprice\\\":0,\\\"itemimageurl\\\":\\\"no-url\\\",\\\"catid\\\":\\\"9960CA1F-46D3-4532-95E7-84F75B3771FE\\\",\\\"status\\\":true,\\\"itemlongname\\\":\\\"Hot Hot\\\",\\\"iscombodeal\\\":false},{\\\"id\\\":\\\"C0EC7736-3AB1-4D52-AE47-97D01BEA8A9C\\\",\\\"itemname\\\":\\\"Meat Treat\\\",\\\"itemdescription\\\":\\\"(BBQ sauce optional) ham, salami, bacon, cabanossi, mozzarella\\\",\\\"itemprice\\\":0,\\\"specialprice\\\":0,\\\"itemimageurl\\\":\\\"no-url\\\",\\\"catid\\\":\\\"9960CA1F-46D3-4532-95E7-84F75B3771FE\\\",\\\"status\\\":true,\\\"itemlongname\\\":\\\"Meat Treat\\\",\\\"iscombodeal\\\

strace的其余部分充满了json字符串

有人能帮我解决这个问题吗。在过去的3天里，我自己都无法理解：（

您可以使用此方法解析json

public static ArrayList parseJSON(String url, int method,List<NameValuePair> params, Class classType) {

    ArrayList list = new ArrayList();
    StrictMode.enableDefaults();
    StrictMode.ThreadPolicy policy = new StrictMode.ThreadPolicy.Builder()
            .permitAll().build();
    StrictMode.setThreadPolicy(policy);
    String respo = "";
    try {
        DefaultHttpClient httpClient = new DefaultHttpClient();

        HttpResponse httpResponse = null;

        if (method == POST) {

            HttpPost httpPost = new HttpPost(url);

            // adding post params
            if (params != null) {
                httpPost.setEntity(new UrlEncodedFormEntity(params));
            }

            httpResponse = httpClient.execute(httpPost);

        } else if (method == GET) {
            // appending params to url
            if (params != null) {
                String paramString = URLEncodedUtils
                        .format(params, "utf-8");
                url += "?" + paramString;
            }
            HttpGet httpGet = new HttpGet(url);

            httpResponse = httpClient.execute(httpGet);

        }

        StatusLine statusLine = httpResponse.getStatusLine();

        int statuscode = statusLine.getStatusCode();
        Log.v("Pre School App", "Response code = " + statuscode);

        if (statuscode == 200) {
            HttpEntity entity = httpResponse.getEntity();
            respo = EntityUtils.toString(entity);
            Log.e("Pre School App test ", "Status code = " + respo);
        } else {
            Log.e("Pre School App test ", "Status code = " + respo);
        }

        // HttpEntity entity = httpResponse.getEntity();
        // respo = EntityUtils.toString(entity);

    } catch (Exception e) {
        // Toast.makeText(myContext, "Error !" + e,
        // Toast.LENGTH_LONG).show();
        e.printStackTrace();
    }

    if (classType != null) {
        try {
            JSONArray jArray = new JSONArray(respo);
            for (int i = 0; i < jArray.length(); i++) {
                JSONObject json = jArray.getJSONObject(i);
                Gson gson = new Gson();
                list.add(gson.fromJson(json.toString(), classType));

            }
        } catch (Exception e) {
            e.printStackTrace();
        }
    } else {
        return null;
    }
    return list;
}

公共静态ArrayList parseJSON（字符串url、int方法、列表参数、类类型）{
ArrayList=新建ArrayList（）；
StrictMode.enableDefaults（）；
StrictMode.ThreadPolicy policy=新建StrictMode.ThreadPolicy.Builder（）
.permitAll（）.build（）；
StrictMode.setThreadPolicy（策略）；
字符串respo=“”；
试一试{
DefaultHttpClient httpClient=新的DefaultHttpClient（）；
HttpResponse HttpResponse=null；
if（方法==POST）{
HttpPost HttpPost=新的HttpPost（url）；
//添加post参数
如果（参数！=null）{
setEntity（新的UrlEncodedFormEntity（参数））；
}
httpResponse=httpClient.execute（httpPost）；
}else if（方法==GET）{
//将参数附加到url
如果（参数！=null）{
String paramString=URLEncodedUtils
.格式（参数“utf-8”）；
url+=“？”+参数字符串；
}
HttpGet HttpGet=新的HttpGet（url）；
httpResponse=httpClient.execute（httpGet）；
}
StatusLine StatusLine=httpResponse.getStatusLine（）；
int statuscode=statusLine.getStatusCode（）；
Log.v（“学前应用程序”、“响应代码=“+statuscode”）；
如果（状态代码==200）{
HttpEntity entity=httpResponse.getEntity（）；
respo=EntityUtils.toString（实体）；
Log.e（“学前应用程序测试”，“状态代码=”+respo）；
}否则{
Log.e（“学前应用程序测试”，“状态代码=”+respo）；
}
//HttpEntity entity=httpResponse.getEntity（）；
//respo=EntityUtils.toString（实体）；
}捕获（例外e）{
//Toast.makeText（myContext，“Error！”+e，
//Toast.LENGTH_LONG）.show（）；
e、 printStackTrace（）；
}
if（类类型！=null）{
试一试{
JSONArray jArray=新JSONArray（respo）；
for（int i=0；i

尝试将

.replaceAll（“\\\”，“）

放在代码中的任何位置。这是您的选择。：）

这样做

您可以使用org.json轻松解析json

try {
            JSONArray jArray = new JSONArray(responseString);
            int size= jArray.length();
            for (int i = 0; i < size; i++) {
                JSONObject item= jArray.getJSONObject(i);
                System.out.println("id : " + item.getString("id"));
                System.out.println("itemname : " + item.getString("itemname"));
                System.out.println("itemdescription : " + item.getString("itemdescription"));

                    // ........ so on 

            }
        } catch (Exception e) {
        }

试试看{
JSONArray jArray=新JSONArray（responseString）；
int size=jArray.length（）；
对于（int i=0；i

您为什么不使用Android内置的org.json呢？我正在使用Azure移动服务。GSON基本上是为了在POJO类中转换json响应而设计的。否则org.json是ok@BirajZalavadia你认为我可以使用json提取数据吗？