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Java 3级Json如何在内部进行计数

java json

Java 3级Json如何在内部进行计数,java,json,Java,Json,我想使用一个返回json的api，如下所示： { "startDate": "2019-06-23T16:07:21.205Z", "endDate": "2019-07-24T16:07:21.205Z", "status": "Complete", "usages": [ { "name": "PureCloud Edge Virtual Usage", "resources": [ { "name": "E

我想使用一个返回json的api，如下所示：

{
  "startDate": "2019-06-23T16:07:21.205Z",
  "endDate": "2019-07-24T16:07:21.205Z",
  "status": "Complete",
  "usages": [
    {
      "name": "PureCloud Edge Virtual Usage",
      "resources": [
        {
          "name": "Edge01-VM-GNS-DemoSite01 (1f279086-a6be-4a21-ab7a-2bb1ae703fa0)",
          "date": "2019-07-24T09:00:28.034Z"
        },
        {
          "name": "329ad5ae-e3a3-4371-9684-13dcb6542e11",
          "date": "2019-07-24T09:00:28.034Z"
        },        
        {
          "name": "e5796741-bd63-4b8e-9837-4afb95bb0c09",
          "date": "2019-07-24T09:00:28.034Z"
        }
      ]
    },
    {
      "name": "PureCloud for SmartVideo Add-On Concurrent",
      "resources": [
        {
          "name": "jpizarro@gns.com.co",
          "date": "2019-06-25T04:54:17.662Z"
        },
        {
          "name": "jaguilera@gns.com.co",
          "date": "2019-06-25T04:54:17.662Z"
        },        
        {
          "name": "dcortes@gns.com.co",
          "date": "2019-07-15T15:06:09.203Z"
        }
      ]
    },
    {
      "name": "PureCloud 3 Concurrent User Usage",
      "resources": [
        {
          "name": "jpizarro@gns.com.co",
          "date": "2019-06-25T04:54:17.662Z"
        },
        {
          "name": "jaguilera@gns.com.co",
          "date": "2019-06-25T04:54:17.662Z"
        },       
        {
          "name": "dcortes@gns.com.co",
          "date": "2019-07-15T15:06:09.203Z"
        }
      ]
    },
    {
      "name": "PureCloud Skype for Business WebSDK",
      "resources": [
        {
          "name": "jpizarro@gns.com.co",
          "date": "2019-06-25T04:54:17.662Z"
        },
        {
          "name": "jaguilera@gns.com.co",
          "date": "2019-06-25T04:54:17.662Z"
        },      
        {
          "name": "dcortes@gns.com.co",
          "date": "2019-07-15T15:06:09.203Z"
        }
      ]
    }
  ],
  "selfUri": "/api/v2/billing/reports/billableusage"
}
我必须计算最后一级中的姓名数量。在网上，我发现了一个库，我只是尝试改编这个例子，但我有一些疑问：一个是它以字符串开头，而不是我必须测试的json文件的路径。我已经手动将其放入其中，buy Eclipse添加了很多：/

当我尝试运行此命令时：

String jsonString = "{\r\n" + 
                    "  \"startDate\": \"2019-06-23T16:07:21.205Z\",\r\n" + 
                    "  \"endDate\": \"2019-07-24T16:07:21.205Z\",\r\n" + 
                    "  \"status\": \"Complete\",\r\n" + 
                    "  \"usages\": [\r\n" + 
                    "    {\r\n" + 
                    "      \"name\": \"PureCloud Edge Virtual Usage\",\r\n" + 
                    "      \"resources\": [\r\n" + 
                    "        {\r\n" + 
                    "          \"name\": \"Edge01-VM-GNS-DemoSite01 (1f279086-a6be-4a21-ab7a-2bb1ae703fa0)\",\r\n" + 
                    "          \"date\": \"2019-07-24T09:00:28.034Z\"\r\n" + 
                    "        },\r\n" + 
                    "        {\r\n" + 
                    "          \"name\": \"329ad5ae-e3a3-4371-9684-13dcb6542e11\",\r\n" + 
                    "          \"date\": \"2019-07-24T09:00:28.034Z\"\r\n" + 
                    "        },        \r\n" + 
                    "        {\r\n" + 
                    "          \"name\": \"e5796741-bd63-4b8e-9837-4afb95bb0c09\",\r\n" + 
                    "          \"date\": \"2019-07-24T09:00:28.034Z\"\r\n" + 
                    "        }\r\n" + 
                    "      ]\r\n" + 
                    "    },\r\n" + 
                    "    {\r\n" + 
                    "      \"name\": \"PureCloud for SmartVideo Add-On Concurrent\",\r\n" + 
                    "      \"resources\": [\r\n" + 
                    "        {\r\n" + 
                    "          \"name\": \"jpizarro@gns.com.co\",\r\n" + 
                    "          \"date\": \"2019-06-25T04:54:17.662Z\"\r\n" + 
                    "        },\r\n" + 
                    "        {\r\n" + 
                    "          \"name\": \"jaguilera@gns.com.co\",\r\n" + 
                    "          \"date\": \"2019-06-25T04:54:17.662Z\"\r\n" + 
                    "        },        \r\n" + 
                    "        {\r\n" + 
                    "          \"name\": \"dcortes@gns.com.co\",\r\n" + 
                    "          \"date\": \"2019-07-15T15:06:09.203Z\"\r\n" + 
                    "        }\r\n" + 
                    "      ]\r\n" + 
                    "    },\r\n" + 
                    "    {\r\n" + 
                    "      \"name\": \"PureCloud 3 Concurrent User Usage\",\r\n" + 
                    "      \"resources\": [\r\n" + 
                    "        {\r\n" + 
                    "          \"name\": \"jpizarro@gns.com.co\",\r\n" + 
                    "          \"date\": \"2019-06-25T04:54:17.662Z\"\r\n" + 
                    "        },\r\n" + 
                    "        {\r\n" + 
                    "          \"name\": \"jaguilera@gns.com.co\",\r\n" + 
                    "          \"date\": \"2019-06-25T04:54:17.662Z\"\r\n" + 
                    "        },       \r\n" + 
                    "        {\r\n" + 
                    "          \"name\": \"dcortes@gns.com.co\",\r\n" + 
                    "          \"date\": \"2019-07-15T15:06:09.203Z\"\r\n" + 
                    "        }\r\n" + 
                    "      ]\r\n" + 
                    "    },\r\n" + 
                    "    {\r\n" + 
                    "      \"name\": \"PureCloud Skype for Business WebSDK\",\r\n" + 
                    "      \"resources\": [\r\n" + 
                    "        {\r\n" + 
                    "          \"name\": \"jpizarro@gns.com.co\",\r\n" + 
                    "          \"date\": \"2019-06-25T04:54:17.662Z\"\r\n" + 
                    "        },\r\n" + 
                    "        {\r\n" + 
                    "          \"name\": \"jaguilera@gns.com.co\",\r\n" + 
                    "          \"date\": \"2019-06-25T04:54:17.662Z\"\r\n" + 
                    "        },      \r\n" + 
                    "        {\r\n" + 
                    "          \"name\": \"dcortes@gns.com.co\",\r\n" + 
                    "          \"date\": \"2019-07-15T15:06:09.203Z\"\r\n" + 
                    "        }\r\n" + 
                    "      ]\r\n" + 
                    "    }\r\n" + 
                    "  ],\r\n" + 
                    "  \"selfUri\": \"/api/v2/billing/reports/billableusage\"\r\n" + 
                    "}\r\n" + 
                    ""; 
            int cantidadDeLicencias = 0;
            JSONObject jsonObject = new JSONObject(jsonString);        
            JSONArray usages = jsonObject.getJSONArray("usages");     
            System.out.println("usages " + usages);

            for (int i = 0; i < usages.length(); i++) {
                JSONArray resources = jsonObject.getJSONArray("resources");

                for (int j = 0; j < resources.length(); j++) {
                    JSONArray names = jsonObject.getJSONArray("name");
                    cantidadDeLicencias = cantidadDeLicencias + names.length();
                    //String name = jsonObject.getJSONObject(j).getString("name");
                }
            }
            System.out.println("Cantidad de licencias" + cantidadDeLicencias);

String jsonString=“{\r\n”+
“\'startDate\”：\“2019-06-23T16:07:21.205Z\”，\r\n“+
“\'endDate\”：\“2019-07-24T16:07:21.205Z\”，\r\n“+
“\”状态\“：\”完成\“，\r\n”+
“\“用法\”：[\r\n”+
“{\r\n”+
“\”名称\“：\”PureCloud边缘虚拟使用\“，\r\n”+
“\”资源\“：[\r\n”+
“{\r\n”+
“\”名称\“：\”Edge01-VM-GNS-DemoSite01（1f279086-a6be-4a21-ab7a-2bb1ae703fa0）\”，\r\n“+
“\”日期\“：\”2019-07-24T09:00:28.034Z\”\r\n“+
“}，\r\n”+
“{\r\n”+
“\“名称\”：\“329ad5ae-e3a3-4371-9684-13dcb6542e11\”，\r\n“+
“\”日期\“：\”2019-07-24T09:00:28.034Z\”\r\n“+
“}，\r\n”+
“{\r\n”+
“\“名称\”：\“e5796741-bd63-4b8e-9837-4afb95bb0c09\”，\r\n“+
“\”日期\“：\”2019-07-24T09:00:28.034Z\”\r\n“+
“}\r\n”+
“]\r\n”+
“}，\r\n”+
“{\r\n”+
“\”名称\“：\”PureCloud for SmartVideo加载项并发\“，\r\n”+
“\”资源\“：[\r\n”+
“{\r\n”+
“\”姓名\“：\”jpizarro@gns.com.co\“，\r\n”+
“\“日期\”：\“2019-06-25T04:54:17.662Z\”\r\n“+
“}，\r\n”+
“{\r\n”+
“\”姓名\“：\”jaguilera@gns.com.co\“，\r\n”+
“\“日期\”：\“2019-06-25T04:54:17.662Z\”\r\n“+
“}，\r\n”+
“{\r\n”+
“\”姓名\“：\”dcortes@gns.com.co\“，\r\n”+
“\”日期\“：\”2019-07-15T15:06:09.203Z\”\r\n“+
“}\r\n”+
“]\r\n”+
“}，\r\n”+
“{\r\n”+
“\”名称\“：\”PureCloud 3并发用户使用\“，\r\n”+
“\”资源\“：[\r\n”+
“{\r\n”+
“\”姓名\“：\”jpizarro@gns.com.co\“，\r\n”+
“\“日期\”：\“2019-06-25T04:54:17.662Z\”\r\n“+
“}，\r\n”+
“{\r\n”+
“\”姓名\“：\”jaguilera@gns.com.co\“，\r\n”+
“\“日期\”：\“2019-06-25T04:54:17.662Z\”\r\n“+
“}，\r\n”+
“{\r\n”+
“\”姓名\“：\”dcortes@gns.com.co\“，\r\n”+
“\”日期\“：\”2019-07-15T15:06:09.203Z\”\r\n“+
“}\r\n”+
“]\r\n”+
“}，\r\n”+
“{\r\n”+
“\”名称\“：\”PureCloud Skype for Business WebSDK\”，\r\n“+
“\”资源\“：[\r\n”+
“{\r\n”+
“\”姓名\“：\”jpizarro@gns.com.co\“，\r\n”+
“\“日期\”：\“2019-06-25T04:54:17.662Z\”\r\n“+
“}，\r\n”+
“{\r\n”+
“\”姓名\“：\”jaguilera@gns.com.co\“，\r\n”+
“\“日期\”：\“2019-06-25T04:54:17.662Z\”\r\n“+
“}，\r\n”+
“{\r\n”+
“\”姓名\“：\”dcortes@gns.com.co\“，\r\n”+
“\”日期\“：\”2019-07-15T15:06:09.203Z\”\r\n“+
“}\r\n”+
“]\r\n”+
“}\r\n”+
“]，\r\n”+
“\“selfUri\”：\“/api/v2/billing/reports/billableusage\”\r\n“+
“}\r\n”+
""; 
int cantidadDeLicencias=0；
JSONObject JSONObject=新的JSONObject（jsonString）；
JSONArray usages=jsonObject.getJSONArray（“usages”）；
System.out.println（“用法”+用法）；
for（int i=0；i
出现错误：未找到JSONObject[“资源”]

如果程序可以工作，我必须做的更改会导致什么，api返回一个json，你知道，没有所有这些：/。那么这个图书馆会有用吗

更新 现在它起作用了

int cantidadDeLicencias = 0;
            JSONObject jsonObject = new JSONObject(jsonString);        
            JSONArray usages = jsonObject.getJSONArray("usages");     
            System.out.println("usages " + usages);

            for (int i = 0; i < usages.length(); i++) {
                JSONObject innerTemp = usages.getJSONObject(i);
                JSONArray resources = innerTemp.getJSONArray("resources");
                //JSONArray resources = usages.getJSONArray("resources");

                for (int j = 0; j < resources.length(); j++) {
                    String names = resources.getJSONObject(j).getString("name");
                    cantidadDeLicencias = cantidadDeLicencias + 1; 
                    //String name = jsonObject.getJSONObject(j).getString("name");
                }
            }
            System.out.println("Cantidad de licencias " + cantidadDeLicencias);

int cantidadDeLicencias=0；
JSONObject JSONObject=新的JSONObject（jsonString）；
JSONArray usages=jsonObject.getJSONArray（“usages”）；

JSONArray usages = jsonObject.getJSONArray("usages");
for (int i = 0; i < usages.length(); i++) {
    JSONObject innerTemp = usages.getJSONObject(i);
    JSONArray resources = innerTemp.getJSONArray("resources");
    // more code here
}