我正在尝试使用 php 将表从 mysql/localhost 数据库加载到 android。我编写了如下的 jason 代码。
try {
// convert json string to json array
JSONArray aJson = new JSONArray(sJson);
// create apps list
List<Application> apps = new ArrayList<Application>();
for(int i=0; i<aJson.length(); i++) {
JSONObject json = aJson.getJSONObject(i);
Application app = new Application();
app.setTitle(json.getString("number"));
app.setTotalDl(Long.parseLong(json.getString("speed")));
//app.setRating(Integer.parseInt(json.getString("rating")));
//app.setIcon(json.getString("icon"));
// add the app to apps list
apps.add(app);
}
//notify the activity that fetch data has been complete
if(listener != null) listener.onFetchComplete(apps);
} catch (JSONException e) {
msg = "Invalid response";
if(listener != null) listener.onFetchFailure(msg);
return;
}
在那里你可以看到我的 php 文件。
<?php
//connect to the db
$host="localhost"; // Host name
$user="root"; // Mysql username
$pswd=""; // Mysql password
$db="gpsvts_geotrack"; // Database name
// Table name
$conn = mysqli_connect($host,$user,$pswd,$db);
//mysql_select_db($db, $conn);
//run the query to search for the username and password the match
//$query = "SELECT * FROM "." ".$tbl_name. " "."WHERE uname = '$myusername' AND passwd= '$mypassword' ";
$query = "select user_master.uid,device_locator_tbl.imei,device_locator_tbl.speed,device_locator_tbl.datetime,device_locator_tbl.number,device_master.icon
from device_locator_tbl,device_master,device_registration,user_master where user_master.uid=device_registration.uid
AND device_registration.imei=device_master.imei AND device_registration.imei=device_locator_tbl.imei AND user_master.uid=126";
//$query = "SELECT uid FROM $tbl_name WHERE uname = '$un' AND passwd = '$pw'";
$result = mysqli_query($conn,$query) or die("Unable to verify user because : " );
//this is where the actual verification happens
if($row = mysqli_fetch_array($result))
//echo mysql_result($result,0); // for correct login response
{
$rows[] = $row;
}
// close the database connection
mysqli_close($con);
// echo the application data in json format
echo json_encode($rows);
?>
在这里,我正确设置了路径。我想将这些表格详细信息添加到列表视图中。运行时会加载应用程序列表视图。但是没有加载数据。我总是收到错误消息“无效响应”。我想纠正它。怎么做?