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php - Android 和 HTML 页面之间的 Webview 数据不匹配

转载 作者:太空狗 更新时间:2023-10-29 12:41:44 27 4
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我的 Android web View 中有一个 jQuery ListView ,用于从服务器加载数据。我使用 HTTP GET 响应从服务器数据库获取数据。我在 <body onload="loadRes()"> 中使用它.这是我的方法:

<script>
lastRecord=0;

function loadRes(){
$('#sample').html( 'hello' );
$.get(
"queryRestaurantsList.php?lastRecord="+lastRecord,
function( data ) {
$('#rest_mesgs').append( data )
.listview( 'refresh' );
});
}
</script>

但是,我想按特定顺序对列表进行排序。为此,我从 Android 代码向服务器发送了一条 POST 消息,其中包含如下字符串对象:

String list_order ="0012,0002,0003,0001";

list_order字符串对象表示 RestaurantID在数据库中也是主键。这个主键的格式是VARCHAR(4) .这是我的 php 文件:但是,即使我可以通过 HttpResponse 在 LogCat 中看到排序列表的 HTML,我总是在我的 Web View 上收到消息“仍在工作”

<?
mysql_connect($host,$username,$password);
mysql_select_db($database) or die( "Unable to select database");

echo $_POST['ids'];

if($_POST != null){

$query = "SELECT RestaurantID,Name,Short_Loc,Image_Link,Full_Link,Type FROM Restaurant_Info
ORDER BY FIND_IN_SET(RestaurantID,'".$ids."')";

$result = mysql_query($query) or die( "Unable to execute query");

while ($row = mysql_fetch_array($result)){
print '<li id="'.$row['RestaurantID'].'" onclick="newAct('.$row['RestaurantID'].')">';
print '<a href="'.$row['Full_Link'].'">';
print '<img style="height:80px;" src="'.$row['Image_Link'].'">';
print '<h2 style="text-wrap : normal" >'.$row['Name'].'</h2>';
print '<p id="type" class="ui-li-aside"><strong>'.$row['Type'].'</strong></p>';
print '<p>'.$row['Short_Loc'].'</p>';
print '</a>';
print '</li>';
}
}
else {
echo "Still working";
}

?>

HttpPostID.class - 将数据发布到服务器的类

public class HttpPostID extends AsyncTask<Void,Integer,Void> {

static String result;

private static final String webphp = "http://...../queryRestaurantsList.php";

String IDs;

HttpPostID(String ids){
this.IDs =ids;
}

@Override
protected Void doInBackground(Void... params){

HttpClient httpclient = new DefaultHttpClient();
HttpPost httppost = new HttpPost(webphp);

try {

String hello="111,222,333";

List<NameValuePair> nameValuePairs = new ArrayList<NameValuePair>();
nameValuePairs.add(new BasicNameValuePair("order",IDs));
nameValuePairs.add(new BasicNameValuePair("hello",hello));

httppost.setEntity(new UrlEncodedFormEntity(nameValuePairs));

HttpResponse response = httpclient.execute(httppost);
HttpEntity resEntity = response.getEntity();

result = EntityUtils.toString(resEntity);

System.out.println(result);


} catch (Exception e) {
e.printStackTrace();
}

return null;
}
}

我在 Activity 中调用它:new HttpPostID(tester).execute(); tester是一个字符串对象。

LogCat(只有几行,因为输出很大)

07-12 02:25:14.850: I/System.out(10440): <li id="0013" onclick="newAct(0013)"><a href=""><img style="height:80px;" src="http://cedars.hku.hk/sections/campuslife/images/pacific.jpg"><h2 style="text-wrap : normal" >Pacific Coffee Company</h2><p id="type" class="ui-li-aside"><strong>Sandwiches, Cut cakes, Pies, Pastries, Muffins, Premium Ground Coffee, Fruit Juices</strong></p><p>Main Campus</p></a></li><li id="0003" onclick="newAct(0003)"><a href="#page4"><img style="height:80px;" 

最佳答案

首先像这样在html中写一个javascript

 <script>
function reloadRes(var data){
$('#sample').html( 'hello' );
$('#rest_mesgs').append( data )
.listview( 'refresh' );
}
</script>

然后重写Http

public class HttpPostID extends AsyncTask<Void,Integer,String> {

static String result;

private static final String webphp = "http://...../queryRestaurantsList.php";

String IDs;

HttpPostID(String ids){
this.IDs =ids;
}

@Override
protected String doInBackground(Void... params){

HttpClient httpclient = new DefaultHttpClient();
HttpPost httppost = new HttpPost(webphp);

try {

String hello="111,222,333";

List<NameValuePair> nameValuePairs = new ArrayList<NameValuePair>();
nameValuePairs.add(new BasicNameValuePair("order",IDs));
nameValuePairs.add(new BasicNameValuePair("hello",hello));

httppost.setEntity(new UrlEncodedFormEntity(nameValuePairs));

HttpResponse response = httpclient.execute(httppost);
HttpEntity resEntity = response.getEntity();

result = EntityUtils.toString(resEntity);


System.out.println(result);
return result;


} catch (Exception e) {
e.printStackTrace();
return null;
}


}
@Override
protected void onPostExecute(String data){
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT)
{
webview.evaluateJavascript("javascript:reloadRes(data)",
null);
}
else
{
webview.loadUrl("javascript:reloadRes(data)");
}

}

本人是android开发者,对reloadRes(var data)函数不是很清楚,请按您的要求修改。

关于php - Android 和 HTML 页面之间的 Webview 数据不匹配,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/24657383/

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