循环 HttpPost 请求

Question

我需要使用多个不同的发布请求从网页访问数据。现在我使用：

HttpClient httpclient = new DefaultHttpClient();  
HttpPost httppost = new HttpPost("https://myurl");  
List<NameValuePair> nameValuePairs = new ArrayList<NameValuePair>(2);  
nameValuePairs.add(new BasicNameValuePair("action", "search"));  
nameValuePairs.add(new BasicNameValuePair("ndc", ndc));  
httppost.setEntity(new UrlEncodedFormEntity(nameValuePairs));  
HttpResponse response = httpclient.execute(httppost);

我需要使用变量 ndc 的不同值发送此请求。循环这条线是个好主意吗？如果可以，如何复用 HttpClient 和 HttpPost 变量？

Answer 1

如果 URL 需要保持不变，那么您应该只更改需要发送的值。

for (int i=0; i<ndcArray.length;i++)
{

    if(i==theNumberWhenURLhasToBeChanged)  //adjust this condition based on your    knowledge when the url has to be changed, lets say if i > theNumberWhenURLhasToBeChanged, then change the url...
  {
  httppost = new HttpPost(URLs[theNumberWhenURLhasToBeChanged]);
  }  

nameValuePairs.add(new BasicNameValuePair("ndc", ndcArray[i]));  
httppost.setEntity(new UrlEncodedFormEntity(nameValuePairs));  
HttpResponse response = httpclient.execute(httppost);
}

请注意：响应每次都会更改，因此请记住，您应该将响应保存在某处。并且 ndcArray[] 可以替换为任何你想要的结构。