HttpPost不接受Java中冗长的url

这是我的android应用程序中的httppost方法。它不接受宽松的URL。对于冗长的URL，没有响应/例外。当我在浏览器中手动输入相同的url时，效果很好。有人能指出这个问题吗

    try {
        // defaultHttpClient
        DefaultHttpClient httpClient = new DefaultHttpClient();
        HttpPost httpPost = new HttpPost(url);

        HttpResponse httpResponse = httpClient.execute(httpPost);
        HttpEntity httpEntity = httpResponse.getEntity();
        is = httpEntity.getContent();           

    } catch (UnsupportedEncodingException e) {
        e.printStackTrace();
    } catch (ClientProtocolException e) {
        e.printStackTrace();
    } catch (IOException e) {
        e.printStackTrace();
    }

更新： 添加了一个示例url。当在浏览器中手动输入相同的url并给出响应时，该url可以正常工作

 url.com/data?format=json&pro={%22merchanturl%22:%22http://url.com/logo.pn‌​g%22,%22price%22:599,%22productDesc%22:%22Apple%2032GBBlack%22,%22prodID%22:%2291‌​3393%22,%22merchant%22:%224536%22,%22prourl%22:%22http://url.com/data%22,%22name%‌​22:%22Apple%2032GB%20%2D%20Black%22,%22productUrl%22:%22http://www.url.com/image.‌​jpg%22,%22myprice%22:550,%22mercname%22:%22hello%22,%22mybool%22:false} 

---

我想您的URL包含类似于

index.php？call=getUsers&something=bla

要解决此问题，您可以使用

NameValuePair

：

String url = "http://example.com/index.php";

ArrayList<NameValuePair> nvp = new ArrayList<NameValuePair>();
nvp.add(new BasicNameValuePair("call", "getUsers"));
nvp.add(new BasicNameValuePair("something", "bla"));

try {
    HttpClient client = new DefaultHttpClient();
    HttpPost post = new HttpPost(url);
    post.setEntity(new UrlEncodedFormEntity(nvp));
    HttpResponse response = client.execute(post);
    HttpEntity entity = response.getEntity();
    [...]
} catch (Exception e) {
    [...]
}

stringurl=”http://example.com/index.php";
ArrayList nvp=新的ArrayList（）；
添加（新的BasicNameValuePair（“调用”、“获取用户”）；
nvp.add（新的BasicNameValuePair（“某物”、“bla”）；
试一试{
HttpClient=new DefaultHttpClient（）；
HttpPost=新的HttpPost（url）；
post.setEntity（新的UrlEncodedFormEntity（nvp））；
HttpResponse response=client.execute（post）；
HttpEntity=response.getEntity（）；
[...]
}捕获（例外e）{
[...]
}

public void postData（）{
//创建一个新的HttpClient和Post头
HttpClient HttpClient=新的DefaultHttpClient（）；
HttpPost HttpPost=新的HttpPost（“http://www.yoursite.com/script.php");
试一试{
//添加您的数据
List nameValuePairs=新的ArrayList（2）；
添加（新的BasicNameValuePair（“id”，“12345”）；
添加（新的BasicNameValuePair（“stringdata”，“AndDev很酷！”）；
setEntity（新的UrlEncodedFormEntity（nameValuePairs））；
//执行HTTP Post请求
HttpResponse response=httpclient.execute（httppost）；
}捕获（客户端协议例外e）{
//TODO自动生成的捕捉块
}捕获（IOE异常）{
//TODO自动生成的捕捉块
}
}

您可以尝试使用以下代码。你应该有

---

你正在使用的url在哪里？我不能透露url。它是官方的。这是一个API。当我在浏览器中手动输入相同的url时，它可以正常工作。那么如何验证您的代码？@imran我添加了示例url实际上我的url中有一个很长的jsonobject，如{“merchantPrice”：“7.69”，“merchantName”：“amazon.com”}。实际url有如此多的json参数，如下所示。这行得通吗？实际上我的url中有一个很长的jsonobject，如{“merchantPrice”：“7.69”，“merchantName”：“amazon.com”}。实际url有如此多的json参数，如下所示。这行得通吗？你可以试试我下面的答案。我的json解析器工作得很好。我的疑问是我有一个冗长的请求。这就是问题所在。反应很小。这不是问题。我希望冗长的URL不应该成为问题。如果您对请求URL有任何问题，请与我们分享。我会尽力帮助你的。给你。当我手动输入url时，它工作正常。{%22采购员%22:%22http://url.com/logo.png%22，%22price%22:599，%22productDesc%22:%22Apple%2032GBBlack%22，%22prodID%22:%22913393%22，%22merchant%22:%224536%22，%22prourl%22:%22http://url.com/data%22，%22name%22:%22Apple%2032GB%20%2D%20Black%22%22productUrl%22:%22http://www.url.com/image.jpg%22，%22myprice%22:550，%22mercname%22:%22hello%22，%22mybool%22:false}

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
}
}

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.Reader;
import java.net.URL;
import java.nio.charset.Charset;

import org.json.JSONException;
import org.json.JSONObject;

public class JsonReader {

  private static String readAll(Reader rd) throws IOException {
    StringBuilder sb = new StringBuilder();
    int cp;
    while ((cp = rd.read()) != -1) {
  sb.append((char) cp);
}
return sb.toString();
  }

  public static JSONObject readJsonFromUrl(String url) throws IOException, JSONException {
    InputStream is = new URL(url).openStream();
    try {
      BufferedReader rd = new BufferedReader(new InputStreamReader(is, Charset.forName("UTF-8")));
  String jsonText = readAll(rd);
  JSONObject json = new JSONObject(jsonText);
  return json;
} finally {
  is.close();
    }
  }

  public static void main(String[] args) throws IOException, JSONException {
    JSONObject json = readJsonFromUrl("https://graph.facebook.com/19292868552");
    System.out.println(json.toString());
    System.out.println(json.get("id"));
  }