com.android.volley.parse错误java.lang.string类型的org.json.jsonexception值无法在Android Volley中转换为jsonArray [英] com.android.volley.parse error org.json.jsonexception value of type java.lang.string cannot be converted to jsonArray in Android Volley
问题描述
当我运行该程序时,出现此错误.我不知道该怎么解决.请帮我找到它.
When I run this program I get this error . I don't know how to solve . Help me finding it Please.
这是我的json_encode php代码api.
This is my json_encode php code api.
$i=0;
while ($row = $result->fetch_assoc())
{
$array[$i]=array(
"news_id" => $row["news_id"],
"news_title" => $row["news_title"],
"news_abstract" => $row["news_abstract"],
"news_content" => $row["news_content"],
"news_date" => $row["news_date"],
"news_link" => $row["news_link"],
"news_image_link" => $row["news_image_link"],
"sources_name" => $row["sources_name"],
"category_name" => $row["category_name"],
"news_visible" => $row["news_visible"]
);
$i++;
}
$json=json_encode($array, JSON_HEX_TAG|JSON_HEX_APOS);
和我的Android Volley JsonArrayRequest的JsonArrayRequest.
and my JsonArrayRequest of Android Volley JsonArrayRequest.
JsonArrayRequest newsRequest = new JsonArrayRequest( Url.getUrlJson(), new Response.Listener<JSONArray>(){
@Override
public void onResponse( JSONArray response ){
Log.d( TAG, response.toString() );
hidePDialog();
// Parsing json
for( int i = 0; i < response.length(); i++ ){
try{
JSONObject obj = response.getJSONObject( i );
News news = new News();
if( "1".equals( obj.getString( "news_visible" )) ){
news.setNews_id( obj.getString( "news_id" ) );
news.setNews_title( obj.getString( "news_title" ) );
news.setNews_abstract( obj.getString( "news_abstract" ) );
news.setNews_content( obj.getString( "news_content" ) );
news.setNews_date( obj.getString( "news_date" ) );
news.setNews_link( obj.getString( "news_link" ) );
news.setNews_image_link( obj.getString( "news_image_link" ));
news.setSources_name( obj.getString( "sources_name" ) );
news.setCategory_name( obj.getString( "category_name" ) );
}
newsList.add( news );
}
catch( JSONException e ){
e.printStackTrace();
}
推荐答案
内容类型
<?PHP
header('Content-Type: application/json');
请参见从PHP脚本中返回JSON .
字节顺序标记
PHP倾向于在响应开始时返回 BOM .
PHP is prone to return a BOM at the beginning of the response, when the .php
file or any of its include
s have UTF-8 character encoding.
有关更多信息,请参见此W3C答案和本帖子中的 UTF-8 BOM部分.
For more information, see this W3C answer and section UTF-8 BOM in this post.
一种建议的防止PHP在BOM之前添加的方法是将您的php文件的字符集从UTF-8更改为ASCII或ISO-8859-15.
One suggested way to prevent PHP from prepending a BOM is to change the character set of your php file(s) from UTF-8 to ASCII or ISO-8859-15.
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