java “JSONArray 文本必须在 null 的字符 1 处以 '[' 开头”
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"A JSONArray text must start with '[' at character 1 of null"
提问by Skizit
Just wondering what that error could mean? I get it from the following code..
只是想知道这个错误可能意味着什么？我从以下代码中得到它..
try{
JSONArray jArray = new JSONArray(result);
for(int i=0;i<jArray.length();i++){
JSONObject json_data = jArray.getJSONObject(i);
Log.i("log_tag","id: "+json_data.getInt("id")+
", name: "+json_data.getString("name")+
", sex: "+json_data.getInt("sex")+
", birthyear: "+json_data.getInt("birthyear")
);
}
}
}catch(JSONException e){
Log.e("log_tag", "Error parsing data "+e.toString());
}
回答by Matt
Result is null, apparently. Or it simply does not start with [. Print it out before calling JSONArray to see.
结果显然是空的。或者它根本不以[. 在调用 JSONArray 之前打印出来看看。
Also take a look at the JSONArray source. It is expecting JavaScript array syntax, e.g.:
另请查看JSONArray 源。它期待 JavaScript 数组语法，例如：
['this', 'is', 'array', 'syntax']
['this', 'is', 'array', 'syntax']
回答by rahul
text.trim(); text.trim();
text.trim(); text.trim();
Text is the json file or string , do this at least two times one after another will resolve the problem 99.9%.
文本是json文件或字符串，至少一个接一个地做两次可以99.9%的解决问题。
