Question

JsonArray是：

{
  "list": [
    {
      "name": abc,
      "start_date": "2017-5-18 0:30:00",
      "end_date": "2017-6-1 0:30:00",
      "start_address": "Gujarat 380060, India",
      "end_address": "Ognaj, Ahmedabad, Gujarat, India"
    },
    {
      "name": pqr,
      "start_date": "2017-5-18 0:30:00",
      "end_date": "2017-6-1 0:30:00",
      "start_address": "Gujarat 380060, India",
      "end_address": "Ognaj, Ahmedabad, Gujarat, India"
    }
  ]
}

使用springBoot的java代码如下：

@RequestMapping（value =＆＃34; / addabc＆＃34;，method = RequestMethod.POST）

@CrossOrigin
  public Map addabc（@RequestBody String   data，HttpServletRequest request）{

JSONArray jsonArray = new JSONArray（data）;

尝试{
for(int i=0; i < jsonArray.length(); i++) {
  JSONObject jsonobject = jsonArray.getJSONObject(i); 
   ......
   ......

}   
} catch（例外e）{... }

获得例外是： -

org.json.JSONException: A JSONArray text must start with '[' at 1 [character 2 line 1]
    at org.json.JSONTokener.syntaxError(JSONTokener.java:433) ~[json-20140107.jar:na]
    at org.json.JSONArray.<init>(JSONArray.java:105) ~[json-20140107.jar:na]
    at org.json.JSONArray.<init>(JSONArray.java:144) ~[json-20140107.jar:na]
    at com.abc.io.controller.abcController.addabc(abcController.java:214) ~[classes/:na]
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:1.8.0_111]
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[na:1.8.0_111]
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:1.8.0_111]
    at java.lang.reflect.Method.invoke(Method.java:498) ~[na:1.8.0_111]
    at org.springframework.web.method.support.InvocableHandlerMethod.doInvoke(InvocableHandlerMethod.java:221) ~[spring-web-4.2.6.RELEASE.jar:4.2.6.RELEASE]
    at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:136) ~[spring-web-4.2.6.RELEASE.jar:4.2.6.RELEASE]
    at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:110) ~[spring-webmvc-4.2.6.RELEASE.jar:4.2.6.RELEASE]
    at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandlerMethod(RequestMappingHandlerAdapter.java:832) ~[spring-webmvc-4.2.6.RELEASE.jar:4.2.6.RELEASE]
    at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:743) ~[spring-webmvc-4.2.6.RELEASE.jar:4.2.6.RELEASE]
    at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(Abstract.......

当我将json数组转换为JSONArray类然后获得异常。我如何处理JSON数组到JSONArray。

Answer 1

首先，您提供的JSON不是数组。只有"list"对象才是数组。

其次，"name"中""的两个对象中"name": "pqr",的值应为"list"（如JSONObject）。所以提供的json无效。

对于有效的json，以下代码会从JSONArray

为您提供

        JSONParser parser = new JSONParser();
        JSONObject json = (JSONObject) parser.parse(data);

        JSONArray jsonArray = (JSONArray) json.get("list");
        for (int i = 0; i < jsonArray.size(); i++) {
            JSONObject jsonobject = (JSONObject) jsonArray.get(i);
            .....
            .....
        }

php

org.json.JSONException：JSONArray文本必须以＆＃39; [＆＃39;在1 [字符2行1] - 如何解决？

1 个答案: