在我的数据库中，我有个人资料图片网址。我想得到个人资料图片的网址，连同用户的详细资料，并显示在我的应用程序。下面是我的JSON响应。
{"error":false,"userid":"102372118524277056034","uname":"Asesha G","ulocation":"Location Not Set"
,"ugend":"Not Set","uemail":"[email protected]","oarth":"Google","propic":"https:\/\/lh3.googleusercontent
.com\/-JHsviYEvBU4\/AAAAAAAAAAI\/AAAAAAAAAAA\/SiDYHY21SSA\/s64-c\/102372118524277056034.jpg"}
在我的回复中，URL是
propic":"https:\/\/lh3.googleusercontent
.com\/-JHsviYEvBU4\/AAAAAAAAAAI\/AAAAAAAAAAA\/SiDYHY21SSA\/s64-c\/102372118524277056034.jpg
在我的活动中，我得到了除URL之外的所有用户详细信息。下面是我获取个人资料图片URL的数据类型。
private void SetsessionValues(final String userid) {
String tag_string_req = "fetch_login_data";
StringRequest strReq = new StringRequest(Request.Method.POST,
AppURLs.fetch_data_URL, new Response.Listener<String>() {
@Override
public void onResponse(String response) {
try {
JSONObject jObj = new JSONObject(response);
boolean error = jObj.getBoolean("error");
if (!error) {
String userId = jObj.getString("userid");
String uname = jObj.getString("uname");
String ulocation = jObj.getString("ulocation");
String ugend = jObj.getString("ugend");
String uemail = jObj.getString("uemail");
String oarth = jObj.getString("oarth");
String profilepic = jObj.getString("propic");
Log.e(TAG,"Profile Pic : "+profilepic);
session.setLogin(true);
session.setMember(userId, uname, ulocation, ugend, uemail, oarth, profilepic);
} else {
String errorMsg = jObj.getString("error_msg");
Toast.makeText(getApplicationContext(),
errorMsg, Toast.LENGTH_LONG).show();
}
} catch (JSONException e) {
e.printStackTrace();
}
}
}, new Response.ErrorListener() {
@Override
public void onErrorResponse(VolleyError error) {
Toast.makeText(getApplicationContext(),
error.getMessage(), Toast.LENGTH_LONG).show();
}
}) {
@Override
protected Map<String, String> getParams() {
// Post params to login url
Map<String, String> params = new HashMap<String, String>();
params.put("tag", "login_data");
params.put("username", userid);
return params;
}
};
// Adding request to queue
AppController.getInstance().addToRequestQueue(strReq, tag_string_req);
}
在
profilepic中获取空值日志：
java.lang.NullPointerException: Attempt to invoke virtual method 'int java.lang.String.length()' on a null object reference
at libcore.net.UriCodec.encode(UriCodec.java:132)
at java.net.URLEncoder.encode(URLEncoder.java:57)
at com.android.volley.Request.encodeParameters(Request.java:484)
at com.android.volley.Request.getBody(Request.java:470)
at com.android.volley.toolbox.HurlStack.addBodyIfExists(HurlStack.java:253)
at com.android.volley.toolbox.HurlStack.setConnectionParametersForRequest(HurlStack.java:227)
at com.android.volley.toolbox.HurlStack.performRequest(HurlStack.java:107)
at com.android.volley.toolbox.BasicNetwork.performRequest(BasicNetwork.java:97)
at com.android.volley.NetworkDispatcher.run(NetworkDispatcher.java:114)
我的JSON php代码
if($tag == 'login_data'){
$userid=$_POST['username'];
//$dbh->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);
$sql=$dbh->prepare("SELECT * FROM member WHERE oauth_uid=?");
$sql->bindValue(1,$userid);
$sql->execute();
if ($sql->rowCount() > 0) {
// user stored successfully
$userrow = $sql->fetch(PDO::FETCH_ASSOC);
$response["error"] = FALSE;
$response["userid"]= $userrow['oauth_uid'];
$response["uname"]= ucwords(strtolower($userrow['mname']));
$response["ulocation"]= $userrow['location'];
$response["ugend"]= $userrow['gender'];
$response["uemail"]= $userrow['email'];
$response["oarth"]= $userrow['oauth_provider'];
$response["propic"]= $userrow['propic'];
header('Content-Type:Application/json');
//$array[] = $response;
echo json_encode($response);
} else {
// user failed to store
$response["error"] = TRUE;
$response["error_msg"] = "Error occured in Getting Personal Data";
echo json_encode($response);
}
}
}
最佳答案
要删除反斜杠，只需在String profilepic = jObj.getString("propic");之后的行下面添加：
profilepic = profilepic.replace("\\","");