如何使用android volley发布字符串并返回php web服务的json对象数组
我试图发送一个字符串并返回对象的json数组，响应如下：如何使用android volley发布字符串并返回php web服务的json对象数组,php,android,arrays,json,android-volley,Php,Android,Arrays,Json,Android Volley,我试图发送一个字符串并返回对象的json数组，响应如下： // Creating volley request obj JsonArrayRequest movieReq = new JsonArrayRequest(url, new Response.Listener<JSONArray>() { @Override public void onResp
// Creating volley request obj
JsonArrayRequest movieReq = new JsonArrayRequest(url,
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);
Movie movie = new Movie();
movie.setTitle(obj.optString("fullname"));
movie.setThumbnailUrl(obj.optString("image"));
movie.setRating(obj.optString("location"));
movie.setYear(obj.getInt("id"));
// adding movie to movies array
movieList.add(movie);
} catch (JSONException e) {
e.printStackTrace();
}
}
// notifying list adapter about data changes
// so that it renders the list view with updated data
// adapter.notifyDataSetChanged();
adapter.reloadData();
}
}, new Response.ErrorListener() {
@Override
public void onErrorResponse(VolleyError error) {
VolleyLog.d(TAG, "Error: " + error.getMessage());
hidePDialog();
}
})
{
@Override
protected Map<String, String> getParams() {
Map<String, String> params = new HashMap<String, String>();
params.put("fullname", "test"); // fullname is variable and test is value.
return params;
} };
<?php
header("content-type:application/json");
require_once("dbConnect.php");
$fullname = $_REQUEST["fullname"];
//echo $fullname."11";
$sql = "SELECT id ,image,fullname,location from uploadfinding WHERE fullname like '%$fullname%'";
$res = mysqli_query($conn,$sql);
$result = array();
while($row = mysqli_fetch_array($res)){
array_push($result, array(
"id"=>$row["id"],
"fullname"=>$row["fullname"],
"image"=>$row['image'],
"location"=>$row["location"]));
//echo " over";
}
$fp = fopen('results.json', 'w');
fwrite($fp, json_encode($result));
fclose($fp);
echo json_encode($result);
mysqli_close($conn);
?>
//创建截击请求对象
JsonArrayRequest movieReq=新的JsonArrayRequest（url，
新的Response.Listener（）{
@凌驾
公共void onResponse（JSONArray响应）{
Log.d（TAG，response.toString（））；
hidePDialog（）；
//解析json
对于（int i=0；i // Creating volley request obj
JsonArrayRequest movieReq = new JsonArrayRequest(url,
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);
Movie movie = new Movie();
movie.setTitle(obj.optString("fullname"));
movie.setThumbnailUrl(obj.optString("image"));
movie.setRating(obj.optString("location"));
movie.setYear(obj.getInt("id"));
// adding movie to movies array
movieList.add(movie);
} catch (JSONException e) {
e.printStackTrace();
}
}
// notifying list adapter about data changes
// so that it renders the list view with updated data
// adapter.notifyDataSetChanged();
adapter.reloadData();
}
}, new Response.ErrorListener() {
@Override
public void onErrorResponse(VolleyError error) {
VolleyLog.d(TAG, "Error: " + error.getMessage());
hidePDialog();
}
})
{
@Override
protected Map<String, String> getParams() {
Map<String, String> params = new HashMap<String, String>();
params.put("fullname", "test"); // fullname is variable and test is value.
return params;
} };
<?php
header("content-type:application/json");
require_once("dbConnect.php");
$fullname = $_REQUEST["fullname"];
//echo $fullname."11";
$sql = "SELECT id ,image,fullname,location from uploadfinding WHERE fullname like '%$fullname%'";
$res = mysqli_query($conn,$sql);
$result = array();
while($row = mysqli_fetch_array($res)){
array_push($result, array(
"id"=>$row["id"],
"fullname"=>$row["fullname"],
"image"=>$row['image'],
"location"=>$row["location"]));
//echo " over";
}
$fp = fopen('results.json', 'w');
fwrite($fp, json_encode($result));
fclose($fp);
echo json_encode($result);
mysqli_close($conn);
?>
如果希望在PHP脚本中接收测试数据，请使用此代码。确保您的请求方法类型
<?php
header("content-type:application/json");
require_once("dbConnect.php");
if($_SERVER['REQUEST_METHOD']=='POST')
{
$fullname = $_POST["fullname"];
echo "Received fullname = ".$fullname;
}
else if($_SERVER['REQUEST_METHOD']=='GET')
{
$fullname = $_POST["fullname"];
echo "Received fullname = ".$fullname;
}
$sql = "SELECT id ,image,fullname,location from uploadfinding WHERE fullname like '%$fullname%'";
$res = mysqli_query($conn,$sql);
if($res)
{
$result = array();
$result["detial"] = array();
while($row = mysqli_fetch_array($res)){
// temporary array to create single category
$tmp = array();
$tmp["id"] = $row["id"];
$tmp["fullname"] = $row["fullname"];
$tmp["image"] = $row["image"];
$tmp["location"] = $row["location"];
$tmp["des"] = $row["ProductDescription"];
// push category to final json array
array_push($result["detial"], $tmp);
}
// keeping response header to json
header('Content-Type: application/json');
// echoing json result
echo json_encode($result);
}
else
{
echo "No date found ";
}
?>
那么，你能告诉我如何打印json响应（对象数组）吗？实际上php部分已经可以了。在java部分中，JsonArrayRequest不允许指定get或post.So。我在StringRequest（或object request）中更改了它。但现在的问题是它返回字符串，但我需要对象数组。请检查我的更新答案。您收到的字符串响应类型是什么？请分享它。如下：[{“id”：“442”，“全名”：“Pooja（18岁）”，“图片”：“uploadfinding\/uploads\/2017-02-0823:49:521486619389674.jpg”，“位置”：“lkn”，“描述”：null}]它是一个对象数组，但现在当使用stringRequest而不是JsonArrayRequest时，它作为整个字符串返回。您正在接收JSONArray
，所以您只需使用JSONArray
解析该字符串。