Android PHP Hello World

我是Android新手，但在PHP工作。我听说我们可以从Android中调用PHP，因此我认为学习这一点是个好主意，并期待将来有更多的工作

基于堆栈溢出，我尝试将Hellow world从PHP编写到Android

<?php
    echo 'Hello World';
?>

---

您必须在文件中添加以下权限_

刚刚通过。这里有一个演示应用程序代码，可以帮助您更好地理解它

我希望这对你有帮助

try{
                       HttpClient httpclient = new DefaultHttpClient();
                       HttpPost httppost = new HttpPost("http://localhost/Androidphp/ind.php");
                       httppost.setEntity(new UrlEncodedFormEntity(nameValuePairs1));
                       HttpResponse response = httpclient.execute(httppost);
                       String the_string_response = convertResponseToString(response);
                      Toast.makeText(getApplicationContext(), "Response " + the_string_response, Toast.LENGTH_LONG).show();
                   }catch(Exception e){
                         Toast.makeText(getApplicationContext(), "ERROR " + e.getMessage(), Toast.LENGTH_LONG).show();
                         System.out.println("Error in http connection "+e.toString());
                   } 

                    return null;
                }

用那种方法 声明私有变量

 InputStream inputStream;

公共字符串convertResponseToStringHttpResponse响应引发IllegalStateException，IOException{

        String res = "";
        StringBuffer buffer = new StringBuffer();
        inputStream = response.getEntity().getContent();
        int contentLength = (int) response.getEntity().getContentLength(); //getting content length…..
        System.out.println("content length "+contentLength);
  //      Toast.makeText(getApplicationContext(), "contentLength : " + contentLength, Toast.LENGTH_LONG).show();
        if (contentLength < 0){
        }
        else{
               byte[] data = new byte[512];
               int len = 0;
               try
               {
                   while (-1 != (len = inputStream.read(data)) )
                   {
                       buffer.append(new String(data, 0, len)); //converting to string and appending  to stringbuffer…..
                   }
               }
               catch (IOException e)
               {
                   e.printStackTrace();
               }
               try
               {
                   inputStream.close(); // closing the stream…..
               }
               catch (IOException e)
               {
                   e.printStackTrace();
               }
               res = buffer.toString();     // converting stringbuffer to string…..


        }
        return res;
   }

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我知道我在游戏中迟到了，但是对于那些因为HTTPClient被抹黑而看到这篇文章的人来说，我仍然能够使用php与php进行对话。我使用php使自己能够从android应用程序连接到mySQL数据库。

你有没有尝试过简单的谷歌搜索，以获得使用android和php的教程？你在AndroidMenifest.xml中添加了权限了吗？很抱歉打断你，但是Android和PHP没有任何连接。你可以从Android设备上点击用PHP编写的网页，但它不符合Android的具体要求。我尝试了谷歌搜索和所有搜索，但没有任何效果。上面提到的以下代码需要在Android man中添加如果你没有在清单中写代码，对吗？？

 InputStream inputStream;

        String res = "";
        StringBuffer buffer = new StringBuffer();
        inputStream = response.getEntity().getContent();
        int contentLength = (int) response.getEntity().getContentLength(); //getting content length…..
        System.out.println("content length "+contentLength);
  //      Toast.makeText(getApplicationContext(), "contentLength : " + contentLength, Toast.LENGTH_LONG).show();
        if (contentLength < 0){
        }
        else{
               byte[] data = new byte[512];
               int len = 0;
               try
               {
                   while (-1 != (len = inputStream.read(data)) )
                   {
                       buffer.append(new String(data, 0, len)); //converting to string and appending  to stringbuffer…..
                   }
               }
               catch (IOException e)
               {
                   e.printStackTrace();
               }
               try
               {
                   inputStream.close(); // closing the stream…..
               }
               catch (IOException e)
               {
                   e.printStackTrace();
               }
               res = buffer.toString();     // converting stringbuffer to string…..


        }
        return res;
   }