Php 如何使用JSONObject解析多行
我使用phpAPI从mysql获取数据,并使用Php 如何使用JSONObject解析多行,php,android,mysql,json,Php,Android,Mysql,Json,我使用phpAPI从mysql获取数据,并使用Json\u encode将结果传递给android,但当我将结果填充到android listview时,我只得到第一行 这是我正在上网的地方: {“error”:false,“user”:{“paid_amount”:“500”,“parking_duration”:“59min”,“parking_name”:“asass”} {“error”:false,“user”:{“paid_amount”:“100”,“parking_duratio
Json\u encode
将结果传递给android,但当我将结果填充到android listview时,我只得到第一行
这是我正在上网的地方:
{“error”:false,“user”:{“paid_amount”:“500”,“parking_duration”:“59min”,“parking_name”:“asass”}
{“error”:false,“user”:{“paid_amount”:“100”,“parking_duration”:“22min”,“parking_name”:“sdas”}}
PHP部分:
...........
$usersArr = $db->getDriverHistory($plate_no);
if ($usersArr != false) {
foreach($usersArr as $key=>$user){
// use is found
$response[$key]["error"] = FALSE;
$response[$key]["user"]["paid_amount"] = $user["paid_amount"];
$response[$key]["user"]["parking_duration"] =
$user["parking_duration"];
$response[$key]["user"]["parking_name"] = $user["parking_name"];
$response = $response[$key] ;
// echo json_encode($response), "<br>";
// echo $response;
$json = json_encode($response);
echo $json,"<br>";
......
。。。。。。。。。。。
$usersArr=$db->getDriverHistory($plate_no);
如果($usersArr!=false){
foreach($usersArr作为$key=>$user){
//找到了它的用途
$response[$key][“error”]=FALSE;
$response[$key][“用户”][“已付金额”]=$user[“已付金额”];
$response[$key][“用户”][“停车持续时间”]=
$user[“停车时间”];
$response[$key][“user”][“parking_name”]=$user[“parking_name”];
$response=$response[$key];
//echo json_编码($response),“
”;
//回音$应答;
$json=json_encode($response);
echo$json,“
”;
......
Android代码:我需要的是得到所有结果,其中车牌号等于某个数字,但我只得到一行,而不是所有行
private void GetParkingInfo(final String plate_no) {
// Tag used to cancel the request
String tag_string_req = "req_Verfication";
progressBarList.setVisibility(View.VISIBLE);
// myList.setVisibility(View.GONE);
StringRequest strReq = new StringRequest(Request.Method.POST,
Urls.URL_driver_parking_information, new
Response.Listener<String>() {
@Override
public void onResponse(String response) {
Log.d(TAG, "cerfication Response: " + response.toString());
// Parsing json
for (int i = 0; i < response.length(); i++) {
try {
JSONObject jObj = new JSONObject(response);
boolean error = jObj.getBoolean("error");
// Check for error node in json
if (!error) {
// user successfully exist in database
JSONObject user = jObj.getJSONObject("user");
String paid_amount = user.getString("paid_amount");
String parking_duration =
user.getString("parking_duration");
String parking_name = user.getString("parking_name");
HashMap<String, String> prodHashMap = new
HashMap<String, String>();
prodHashMap.put("paid_amount", paid_amount);
prodHashMap.put("parking_duration", parking_duration);
prodHashMap.put("parking_name", parking_name);
ArrayList<HashMap<String, String>> wordList;
wordList = new ArrayList<HashMap<String, String>>();
wordList.add(prodHashMap);
userList = wordList ;
ShowListData();
progressBarList.setVisibility(View.GONE);
}
else{
// Error in login. Get the error message
// // hiding the progress bar
progressBarList.setVisibility(View.GONE);
myList.setVisibility(View.VISIBLE);
String errorMsg = jObj.getString("error_msg");
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();
// // hiding the progress bar
progressBarList.setVisibility(View.GONE);
myList.setVisibility(View.VISIBLE);
}
}
}
}, new Response.ErrorListener() {
@Override
public void onErrorResponse(VolleyError error) {
Log.e(TAG, "Verfication error Error: " + error.getMessage());
Toast.makeText(getApplicationContext(),
"response error", Toast.LENGTH_LONG).show();
// Toast.makeText(getApplicationContext(),
// error.getMessage(), Toast.LENGTH_LONG).show();
// hiding the progress bar
progressBarList.setVisibility(View.GONE);
myList.setVisibility(View.VISIBLE);
}
}) {
@Override
protected Map<String, String> getParams() {
// Posting parameters to verfication url
Map<String, String> params = new HashMap<String, String>();
params.put("plate_no", plate_no);
return params;
}
};
// // Adding request to request queue
AppController.getInstance().addToRequestQueue(strReq,tag_string_req);
}
private void getparkininfo(最终线板编号){
//用于取消请求的标记
字符串标记\u String\u req=“req\u Verfication”;
progressBarList.setVisibility(View.VISIBLE);
//myList.setVisibility(View.GONE);
StringRequest strReq=新的StringRequest(Request.Method.POST,
URL.URL\司机\停车\信息,新建
Response.Listener(){
@凌驾
公共void onResponse(字符串响应){
Log.d(标签,“Cercation响应:+Response.toString());
//解析json
对于(int i=0;i
您并不是只得到一行,而是通过每次迭代创建一个新的ArrayList。这样您只能得到最后一行
ArrayList<HashMap<String, String>> wordList;
wordList = new ArrayList<HashMap<String, String>>();
我觉得它应该是什么样子
if ($usersArr != false) {
foreach($usersArr as $user){
$subresponse["error"] = FALSE;
$subresponse["user"]["paid_amount"] = $user["paid_amount"];
$subresponse["user"]["parking_duration"] = $user["parking_duration"];
$subresponse["user"]["parking_name"] = $user["parking_name"];
$response[] = $subresponse;
}
$json = json_encode($response);
你不会只得到一行,你会在每次迭代中创建一个新的ArrayList,这样你只会得到最后一行
ArrayList<HashMap<String, String>> wordList;
wordList = new ArrayList<HashMap<String, String>>();
我觉得它应该是什么样子
if ($usersArr != false) {
foreach($usersArr as $user){
$subresponse["error"] = FALSE;
$subresponse["user"]["paid_amount"] = $user["paid_amount"];
$subresponse["user"]["parking_duration"] = $user["parking_duration"];
$subresponse["user"]["parking_name"] = $user["parking_name"];
$response[] = $subresponse;
}
$json = json_encode($response);
您在错误的位置初始化了集合,请查看下面的代码,这可能会对您有所帮助
ArrayList<HashMap<String, String>> wordList;
wordList = new ArrayList<HashMap<String, String>>();
for (int i = 0; i < response.length(); i++) {
try {
JSONObject jObj = new JSONObject(response);
boolean error = jObj.getBoolean("error");
// Check for error node in json
if (!error) {
// user successfully exist in database
JSONObject user = jObj.getJSONObject("user");
String paid_amount = user.getString("paid_amount");
String parking_duration =
user.getString("parking_duration");
String parking_name = user.getString("parking_name");
HashMap<String, String> prodHashMap = new
HashMap<String, String>();
prodHashMap.put("paid_amount", paid_amount);
prodHashMap.put("parking_duration", parking_duration);
prodHashMap.put("parking_name", parking_name);
wordList.add(prodHashMap);
;
progressBarList.setVisibility(View.GONE);
}
userList = wordList ;
ShowListData()
ArrayList词表;
wordList=newarraylist();
对于(int i=0;i if ($usersArr != false) {
foreach($usersArr as $user){
$subresponse["error"] = FALSE;
$subresponse["user"]["paid_amount"] = $user["paid_amount"];
$subresponse["user"]["parking_duration"] = $user["parking_duration"];
$subresponse["user"]["parking_name"] = $user["parking_name"];
$response[] = $subresponse;
}
$json = json_encode($response);
ArrayList<HashMap<String, String>> wordList;
wordList = new ArrayList<HashMap<String, String>>();
for (int i = 0; i < response.length(); i++) {
try {
JSONObject jObj = new JSONObject(response);
boolean error = jObj.getBoolean("error");
// Check for error node in json
if (!error) {
// user successfully exist in database
JSONObject user = jObj.getJSONObject("user");
String paid_amount = user.getString("paid_amount");
String parking_duration =
user.getString("parking_duration");
String parking_name = user.getString("parking_name");
HashMap<String, String> prodHashMap = new
HashMap<String, String>();
prodHashMap.put("paid_amount", paid_amount);
prodHashMap.put("parking_duration", parking_duration);
prodHashMap.put("parking_name", parking_name);
wordList.add(prodHashMap);
;
progressBarList.setVisibility(View.GONE);
}
userList = wordList ;
ShowListData()
.....
public function getDriverHistory($plate_no) {
$stmt = $this->conn->prepare("SELECT * from drivers_history
where drivers_history.plate_no = ?");
$stmt->bind_param("s", $plate_no);
if ($stmt->execute()) {
// $user = $stmt->get_result()->fetch_assoc();
// $stmt->close();
// return $user;
$result = $stmt->get_result();
$usersArr = array();
while ($user = $result->fetch_assoc()){
$usersArr[] = $user;
}
$stmt->close();
return $usersArr;
} else {
return NULL;
}
}
....
...........
<?php
include './DbHandler.php';
$db = new DBHandler();
// json response array
$response = array("error" => FALSE);
if (isset($_POST['plate_no'])) {
// receiving the post params
$plate_no = $_POST['plate_no'];
$usersArr = $db->getDriverHistory($plate_no);
if ($usersArr != false) {
$response["error"]= FALSE;
$response["user"] = $usersArr;
echo json_encode($response);
}
}
......
private void GetParkingInfo(final String plate_no) {
// Tag used to cancel the request
String tag_string_req = "req_Verfication";
progressBarList.setVisibility(View.VISIBLE);
// myList.setVisibility(View.GONE);
StringRequest strReq = new StringRequest(Request.Method.POST,
Urls.URL_driver_parking_information, new
Response.Listener<String>() {
@Override
public void onResponse(String response) {
Log.d(TAG, "cerfication Response: " + response.toString());
// Parsing json
JSONArray jsonArrayResult ;
for (int i = 0; i < response.length(); i++) {
try {
JSONObject jObj = new JSONObject(response);
boolean error = jObj.getBoolean("error");
// Check for error node in json
if (!error) {
// user successfully exist in database
jsonArrayResult = jObj.getJSONArray("user");
for(int x=0; x<jsonArrayResult.length();x++){
JSONObject json = jsonArrayResult.getJSONObject(x);
String paid_amount = json.getString("paid_amount");
String parking_duration =
json.getString("parking_duration");
String parking_name = json.getString("parking_name");
HashMap<String, String> prodHashMap = new
HashMap<String, String>();
prodHashMap.put("paid_amount", paid_amount);
prodHashMap.put("parking_duration", parking_duration);
prodHashMap.put("parking_name", parking_name);
ArrayList<HashMap<String, String>> wordList;
wordList = new ArrayList<HashMap<String, String>>();
wordList.add(prodHashMap);
userList = wordList ;
}
ShowListData();
progressBarList.setVisibility(View.GONE);
}
else{
// Error in login. Get the error message
// // hiding the progress bar
progressBarList.setVisibility(View.GONE);
myList.setVisibility(View.VISIBLE);
String errorMsg = jObj.getString("error_msg");
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();
// // hiding the progress bar
progressBarList.setVisibility(View.GONE);
myList.setVisibility(View.VISIBLE);
}
}
}
}, new Response.ErrorListener() {
@Override
public void onErrorResponse(VolleyError error) {
Log.e(TAG, "Verfication error Error: " + error.getMessage());
Toast.makeText(getApplicationContext(),
"response error", Toast.LENGTH_LONG).show();
// Toast.makeText(getApplicationContext(),
// error.getMessage(), Toast.LENGTH_LONG).show();
// hiding the progress bar
progressBarList.setVisibility(View.GONE);
myList.setVisibility(View.VISIBLE);
}
}) {
@Override
protected Map<String, String> getParams() {
// Posting parameters to verfication url
Map<String, String> params = new HashMap<String, String>();
params.put("plate_no", plate_no);
return params;
}
};
// // Adding request to request queue
AppController.getInstance().addToRequestQueue(strReq,tag_string_req);
}