Question

我想从网址获取数据。在这种情况下，我已经有完整的php，数据已经转换为json并在localhost中运行（http：//localhost/adchara1/index.php/？year = 1）

这是php脚本

<?php
 mysql_connect("localhost","root","");
 mysql_select_db("test");
 $q=mysql_query("SELECT * FROM people
 WHERE
 birthyear>'".$_REQUEST['year']."'");
 while($e=mysql_fetch_assoc($q))
         $output[]=$e;
   print(json_encode($output));
   mysql_close(); ?>

这是结果

[{"id":"1","name":"kongkea","sex":"1","birthyear":"1990"}, {"id":"2","name":"thida","sex":"0","birthyear":"2000"}]?>

我想使用按钮点击并在textview中显示此结果

Answer 1

将此代码写入Button OnClickListener

        try {
        String url = "http://YourIPAddress/adchara1/index.php/?year=1";
        HttpPost httppost = new HttpPost(url);
        try {
            HttpParams p = new BasicHttpParams();
            HttpClient httpclient = new DefaultHttpClient(p);
            ResponseHandler<String> responseHandler = new BasicResponseHandler();
            String responseBody = httpclient.execute(httppost,
                    responseHandler);
            JSONArray jArray = new JSONArray(responseBody);
            String text="";
            for (int i = 0; i < jArray.length(); i++) {
                JSONObject e = jArray.getJSONObject(i);
                    text = text + "ID : "+e.getString("id")+"\n";
                    text = text + "Name : "+e.getString("name")+"\n";
                    text = text + "Sex : "+e.getString("sex")+"\n";
                    text = text + "Birthyear : "+e.getString("birthyear")+"\n";
            }
            Textview.setText(text);
        } catch (ClientProtocolException e) {
            e.printStackTrace();
        } catch (IOException e) {
            e.printStackTrace();
        }

    } catch (Throwable t) {
        Toast.makeText(this, "Request failed: " + t.toString(),
                Toast.LENGTH_LONG).show();
        t.printStackTrace();
    }

如果您有任何澄清通知我

Answer 2

Button button =(Button) findViewById(R.id.button);
        TextView tv =(TextView) findViewById(R.id.textview);
        button.setOnClickListener(new OnClickListener() {

            @Override
            public void onClick(View v) {
                // TODO Auto-generated method stub
                String result = connectionFromServer("http://localhost/adchara1/index.php/?year=1");
                tv.setText(result);
            }
        });   

 public static String connectionFromServer(String url) throws IOException {

            BufferedReader inputStream = null;

            URL myurl = new URL(url);
            URLConnection dc = myurl.openConnection();

            dc.setConnectTimeout(5000);
            dc.setReadTimeout(5000);

            inputStream = new BufferedReader(new InputStreamReader(
                    dc.getInputStream()));

            // read the JSON results into a string
            String result = inputStream.readLine();
            return result;
        }

这将在textview中显示结果。

从android中的url获取数据

2 个答案: