github{"syncsts":
[
{"status":"1","Id":"9"},
{"status":"1","Id":"8"}
]
}
（我认为）
$ arr应该有[{＆＃34; status＆＃34;：＆＃34; 1＆＃34;，＆＃34; Id＆＃34;：＆＃34; 9＆＃34;}，{＆＃34 ;状态＆＃34;：＆＃34; 1＆＃34;，＆＃34; Id＆＃34;：＆＃34; 8＆＃34;}]
$arr = $_POST['syncsts']
public void updateMySQLSyncSts(final ArrayList<HashMap<String, String>> lt){
JSONArray arr = new JSONArray(lt);
JSONObject js = new JSONObject();
try {
js.put("syncsts",arr);
} catch (JSONException e) {
e.printStackTrace();
}
Log.i("MainActivity",js.toString());
String url = "http://10.0.3.2/insight/mysqlsqlitesync/updatesyncsts.php";
JsonObjectRequest req = new JsonObjectRequest(Request.Method.POST, url, js,
new Response.Listener<JSONObject>() {
@Override
public void onResponse(JSONObject response) {
Toast.makeText(getApplicationContext(), "MySQL DB has been informed about Sync activity", Toast.LENGTH_LONG).show();
}
},
new Response.ErrorListener() {
@Override
public void onErrorResponse(VolleyError error) {
Log.i("MainActivity",error.getMessage());
Toast.makeText(getApplicationContext(), error.getMessage(), Toast.LENGTH_LONG).show();
}
});
MySingleton.getInstance(this).addToRequestQueue(req);
}
我正在使用上面的函数发送JSON格式的参数以及我的帖子请求。当PHP脚本执行$ _POST [＆＃34; syncsts＆＃34;]行时，抛出以下错误。
/**
* Updates Sync status of Users
*/
include_once './db_functions.php';
//Create Object for DB_Functions clas
$db = new DB_Functions();
//Get JSON posted by Android Application
$json = $_POST["syncsts"];
//Remove Slashes
if (get_magic_quotes_gpc()){
$json = stripslashes($json);
}
//Decode JSON into an Array
$data = json_decode($json);
//Util arrays to create response JSON
$a=array();
$b=array();
//Loop through an Array and insert data read from JSON into MySQL DB
for($i=0; $i<count($data) ; $i++)
{
//Store User into MySQL DB
$res = $db->updateSyncSts($data[$i]->Id,$data[$i]->status);
//Based on inserttion, create JSON response
if($res){
$b["id"] = $data[$i]->Id;
$b["status"] = 'yes';
array_push($a,$b);
}else{
$b["id"] = $data[$i]->Id;
$b["status"] = 'no';
array_push($a,$b);
}
}
//Post JSON response back to Android Application
echo json_encode($a);
10-04 21:59:23.523 2062-2062/? I/MainActivity: {"syncsts":[{"status":"1","Id":"9"},{"status":"1","Id":"8"}]}
10-04 21:59:23.767 2062-2062/? I/MainActivity: org.json.JSONException: Value <br of type java.lang.String cannot be converted to JSONObject
file_put_contents('test.txt', file_get_contents('php://input'));
$arr = $_POST['syncsts'];
echo $arr;
$age = array("Peter"=>"35", "Ben"=>"37", "Joe"=>"43");
echo json_encode($age);
请告诉我JSON格式有什么问题，我试图发送到用Java生成的服务器。
答案 0 :(得分：1)
看起来错误是来自服务器的响应。 onResponse(JSONObject response)期望结果是正确的jsonobject。检查在回显结果后是否显示任何其他元素（例如错误消息）。您可以使用名为postman的chrome扩展程序从浏览器中检查它，您可以尝试手动向服务器发送POST和GET请求
答案 1 :(得分：0)
<?php
// array for JSON response
$response = array();
if (isset($_POST['email']) && isset($_POST['password'])) {
$email= $_POST['email'];
$password= $_POST['password'];
// include db connect class
require_once 'DB_Connect.php';
// connecting to db
$db = new DB_CONNECT();
// mysql update row with matched pid
$result = mysql_query("UPDATE users SET encrypted_password =
'$password' WHERE email = $email");
// check if row deleted or not
if (mysql_affected_rows() > 0) {
// successfully updated
$response["error"] = FALSE;
$response["message"] = "Product successfully updated";
// echoing JSON response
echo json_encode($response);
} else {
// no product found
$response["error"] = TRUE;
$response["message"] = "No product found";
// echo no users JSON
echo json_encode($response);
}
} else {
// required field is missing
$response["error"] = TRUE;
$response["message"] = "Required field(s) is missing";
// echoing JSON response
echo json_encode($response);
}
------------------------------------------------------------------------
android code
public class ChangePass extends AppCompatActivity {
private static final String TAG = ChangePass.class.getSimpleName();
private Button btn_ChangePass;
private EditText ed_email,ed_pass;
private ProgressDialog pDialog;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_change_pass);
btn_ChangePass=(Button)findViewById(R.id.btchangepass);
ed_email=(EditText)findViewById(R.id.email);
ed_pass=(EditText)findViewById(R.id.newpass);
pDialog = new ProgressDialog(this);
pDialog.setCancelable(false);
btn_ChangePass.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
String email=ed_email.getText().toString();
String password=ed_pass.getText().toString();
if (!email.isEmpty() && !password.isEmpty()) {
// login user
changePassword(email, password);
} else {
// Prompt user to enter credentials
Toast.makeText(getApplicationContext(),
"Please enter the credentials!", Toast.LENGTH_LONG)
.show();
}
}
});
}
private void changePassword(final String email,final String password)
{
String tag_string_req = "req_update";
pDialog.setMessage("Updating ...");
showDialog();
StringRequest strReq = new StringRequest(Request.Method.POST,
AppConfig.URL_UPDATE, new Response.Listener<String>() {
@Override
public void onResponse(String response) {
Log.d(TAG, "Login Response: " + response.toString());
hideDialog();
try {
JSONObject jObj = new JSONObject(response);
boolean error = jObj.getBoolean("error");
// Check for error node in json
if (!error)
{
Intent intent = new Intent(ChangePass.this,
MainActivity.class);
startActivity(intent);
finish();
} else
{
// Error in login. Get the error message
String errorMsg = jObj.getString("message");
Toast.makeText(getApplicationContext(),
errorMsg, Toast.LENGTH_LONG).show();
}
} catch (JSONException e) {
// JSON error
e.printStackTrace();
Toast.makeText(getApplicationContext(),
"Json error: " + e.getMessage(), Toast.LENGTH_LONG).show();
}
}
}, new Response.ErrorListener() {
@Override
public void onErrorResponse(VolleyError error)
{
Log.e(TAG, "Response Error: " + error.getMessage());
Toast.makeText(getApplicationContext(),
error.getMessage(), Toast.LENGTH_LONG).show();
hideDialog();
}
}) {
@Override
protected Map<String, String> getParams() {
// Posting parameters to login url
Map<String, String> params = new HashMap<String, String>();
params.put("email", email);
params.put("password", password);
return params;
}
};
// Adding request to request queue
AppController.getInstance().addToRequestQueue(strReq, tag_string_req);
}
private void showDialog() {
if (!pDialog.isShowing())
pDialog.show();
}
private void hideDialog() {
if (pDialog.isShowing())
pDialog.dismiss();
}
}
---------------------------------------------------------------------
error
org.json.JSONException:
Value <br of type java.lang.String cannot be converted to JSONObject
please help me guys...
this code code is for updating password