postData無法解析爲類型

Question

我是Android編程的新手。我試圖用post發佈一些數據到服務器。我GOOGLE了它，並用此想出了：

public void postData() { 
    // Create a new HttpClient and Post Header 
     HttpClient httpclient = new DefaultHttpClient(); 
     HttpPost httppost = new HttpPost("http://www.yoursite.com/script.php"); 
     try { 
      // Add your data 
      List<NameValuePair> nameValuePairs = new ArrayList<NameValuePair>(2); 
      nameValuePairs.add(new BasicNameValuePair("id", "12345")); 
      nameValuePairs.add(new BasicNameValuePair("stringdata", "AndDev is Cool!")); 
      httppost.setEntity(new UrlEncodedFormEntity(nameValuePairs)); 

      // Execute HTTP Post Request 
      HttpResponse response = httpclient.execute(httppost); 

     } catch (ClientProtocolException e) { 
      // TODO Auto-generated catch block 
     } catch (IOException e) { 
      // TODO Auto-generated catch block 
     } 

    } 

我的問題是我得到這個代碼的第一行錯誤：

• POSTDATA不能被解析爲一個類型
• 語法令牌「{」，刪除標記「無效」，@此令牌
• 語法錯誤錯誤預期

我使用Eclipse和我使用d Shift + Ctrl + o獲取所有導入。

Answer 1

你的問題（根據你迄今給出的信息）是你在類的外部聲明瞭功能postData。

Java中的函數需要在類中聲明。或者，你意外地關閉了以前的班級，因爲有太多的}（在這種情況下，你應該在額外的}上有錯誤），或者你還沒有申報班級。

的類可以是這個樣子：

public class MyPoster { 

    public void postData() { 
     // Create a new HttpClient and Post Header 
     HttpClient httpclient = new DefaultHttpClient(); 
     HttpPost httppost = new HttpPost("http://www.yoursite.com/script.php"); 
     try { 
      // Add your data 
      List<NameValuePair> nameValuePairs = new ArrayList<NameValuePair>(2); 
      nameValuePairs.add(new BasicNameValuePair("id", "12345")); 
      nameValuePairs.add(new BasicNameValuePair("stringdata", "AndDev is Cool!")); 
      httppost.setEntity(new UrlEncodedFormEntity(nameValuePairs)); 

      // Execute HTTP Post Request 
      HttpResponse response = httpclient.execute(httppost); 

     } catch (ClientProtocolException e) { 
      // TODO Auto-generated catch block 
     } catch (IOException e) { 
      // TODO Auto-generated catch block 
     } 

    } 
}