Iam wrte一个Android应用程序，并尝试从数据库中选择数据并输入到tablerow和textview。
但是当我尝试处理json响应时，就像
方法从数据库中选择
public void selectfromDb(){
try{
HttpClient httpclient = new DefaultHttpClient();
HttpPost httppost = new HttpPost("http://tijarati.ma/webservices/selectall.php");
HttpResponse response = httpclient.execute(httppost);
HttpEntity entity = response.getEntity();
is = entity.getContent();
Log.e("log_tag", "connection success ");
// Toast.makeText(getApplicationContext(), "pass", Toast.LENGTH_SHORT).show();
}
catch(Exception e)
{
Log.e("log_tag", "Error in http connection "+e.toString());
Toast.makeText(getActivity(), "Connection fail", Toast.LENGTH_SHORT).show();
}
//convert response to string
try
{
BufferedReader reader = new BufferedReader(new InputStreamReader(is,"UTF-8"),8);
StringBuilder sb = new StringBuilder();
String line = null;
while ((line = reader.readLine()) != null)
{
sb.append(line + "\n");
// Toast.makeText(getApplicationContext(), "Input Reading pass", Toast.LENGTH_SHORT).show();
}
is.close();
result=sb.toString();
}
catch(Exception e)
{
Log.e("log_tag", "Error converting result "+e.toString());
Toast.makeText(getActivity(), " Input reading fail", Toast.LENGTH_SHORT).show();
}
//parse json data
try
{
JSONArray jArray = new JSONArray(result);
String re=jArray.getString(jArray.length()-1);
TableLayout tv=(TableLayout)getView().findViewById(R.id.table);
tv.removeAllViewsInLayout();
int flag=1;
for(int i=-1;i<jArray.length()-1;i++)
{
TableRow tr=new TableRow(getActivity());
tr.setLayoutParams(new LayoutParams(
LayoutParams.FILL_PARENT,
LayoutParams.WRAP_CONTENT));
if(flag==1)
{
TextView b6=new TextView(getActivity());
b6.setText("ID");
b6.setTextColor(Color.BLUE);
b6.setTextSize(15);
tr.addView(b6);
TextView b19=new TextView(getActivity());
b19.setPadding(10, 0, 0, 0);
b19.setTextSize(15);
b19.setText("Matier");
b19.setTextColor(Color.BLUE);
tr.addView(b19);
tv.addView(tr);
final View vline = new View(getActivity());
vline.setLayoutParams(new TableRow.LayoutParams(TableRow.LayoutParams.FILL_PARENT, 2));
vline.setBackgroundColor(Color.BLUE);
tv.addView(vline);
flag=0;
}
else
{
JSONObject json_data = jArray.getJSONObject(i);
int id=json_data.getInt("id");
String namematier=json_data.getString("matier");
Log.i("log_tag","id: "+id+
", matier: "+namematier
);
TextView b=new TextView(getActivity());
// String stime=String.valueOf(json_data.getInt("f1"));
if(json_data.has("f")) {
b.setText(id);
b.setTextColor(Color.RED);
b.setTextSize(15);
tr.addView(b);
}
TextView b1=new TextView(getActivity());
b1.setPadding(10, 0, 0, 0);
b1.setTextSize(15);
String stime1=json_data.optString(namematier);
b1.setText(namematier);
b1.setTextColor(Color.WHITE);
tr.addView(b1);
tv.addView(tr);
final View vline1 = new View(getActivity());
vline1.setLayoutParams(new TableRow.LayoutParams(TableRow.LayoutParams.FILL_PARENT, 1));
vline1.setBackgroundColor(Color.WHITE);
tv.addView(vline1);
}
}
}
catch(JSONException e)
{
Log.e("log_tag", "Error parsing data "+e.toString());
Toast.makeText(getActivity(), e.toString(), Toast.LENGTH_LONG).show();
}
代码php
$result = mysql_query("SELECT * FROM adminmatier") or die(mysql_error());
// check for empty result
if (mysql_num_rows($result) > 0) {
$response["matier"] = array();
while ($row = mysql_fetch_array($result)) {
$product = array();
$product["id"] = $row["id"];
$product["matier"] = $row["matier"];
// push single product into final response array
array_push($response["matier"], $product);
}
// success
$response["success"] = 1;
echo json_encode($response);
} else {
// no products found
$response["success"] = 0;
$response["message"] = "No products found";
echo json_encode($response);
}
?>
这是logcat
Error parsing data org.json.JSONException: Value {"matier":[{"id":"116","matier":""},{"id":"115","matier":""},{"id":"114","matier":""},{"id":"113","matier":""},{"id":"112","matier":""},{"id":"111","matier":"azert"},{"id":"110","matier":"azert"},{"id":"109","matier":"hdhdhe"},{"id":"108","matier":""},{"id":"107","matier":""},{"id":"106","matier":""},{"id":"105","matier":""},{"id":"104","matier":""},{"id":"103","matier":""},{"id":"102","matier":""},{"id":"101","matier":"hkcj"},{"id":"100","matier":"hkcj"},{"id":"99","matier":"hkcj"},{"id":"98","matier":"hkcj"},{"id":"97","matier":"hkcj"},{"id":"96","matier":"hkcj"},{"id":"95","matier":"hkcj"},{"id":"94","matier":"hkcj"},{"id":"93","matier":"hkcj"},{"id":"92","matier":"g"},{"id":"91","matier":""},{"id":"90","matier":""},{"id":"89","matier":"bilal"},{"id":"88","matier":"bilal"},{"id":"84","matier":"test"},{"id":"85","matier":"tr"},{"id":"86","matier":"jdjjf"},{"id":"87","matier":"ghftu"},{"id":"118","matier":""},{"id":"117","matier":""}],"success":1} of type org.json.JSONObject cannot be converted to JSONArray
当我在这个网站上测试结果json时
http://jsonformatter.curiousconcept.com/
网址
http://tijarati.ma/webservices/selectall.php
VALID解析json
我知道问题在哪里
答案 0 :(得分：0)
您的响应JSON是一个JSON对象，它不是JSON数组。
因此，请尝试从
更改代码JSONArray jArray = new JSONArray(result);
到
JSONObject result = new JSONObject(result);
JSONArray jArray = result.getJSONArray("matier");