HttpClient httpclient = new DefaultHttpClient();

HttpGet httpget = new HttpGet(baseUrl + action);

HttpResponse response = httpclient.execute(httpget);

retStr = EntityUtils.toString(response.getEntity());

 

JSONObject objRoot = new JSONObject(retStr );

retStr = objRoot.getString("qwe");

所用到的jar 包:httpcore httpclient

 

 

public static String sendPost(String host,String content,String encodeType) throws UnsupportedEncodingException,IOException

{

HttpClient httpClient = new DefaultHttpClient();

HttpPost post= new HttpPost(host);

//NameValuePair p = new BasicNameValuePair("v", "123");

List<NameValuePair> list = new ArrayList<NameValuePair>();

list.add(new BasicNameValuePair("v", "1405322466697"));

StringEntity entity = new UrlEncodedFormEntity(list);

post.setEntity(entity);

StringEntity myEntity;

if(!encodeType.isEmpty())

myEntity = new StringEntity(content,encodeType);

else

myEntity = new StringEntity(content);

post.addHeader("Content-Type", "text/xml");

post.addHeader("Connection","keep-alive");

post.addHeader("Accept","*/*");

post.addHeader("Cache-Control", "max-age=0");

post.addHeader("User-Agent", "Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 6.0)");

post.setEntity(myEntity);

HttpResponse response = httpClient.execute(post);

String answerRes = "";

if(response.getStatusLine().getStatusCode()==200)

{

//如果状态码为200,就是正常返回

String result=EntityUtils.toString(response.getEntity());

answerRes = new String(result.getBytes("iso-8859-1"), "UTF-8");

}

return answerRes;

}

public static String sendGet(String url) throws UnsupportedEncodingException,IOException

{

HttpClient httpClient = new DefaultHttpClient();

HttpGet get= new HttpGet(url);

get.addHeader("Connection","keep-alive");

get.addHeader("Accept", "text/html,application/xhtml+xml,application/xml;q=0.9,*/;q=0.8");

get.addHeader("Cache-Control", "max-age=0");

get.addHeader("User-Agent", "Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 6.0)");

HttpResponse response = httpClient.execute(get);

String answerRes = "";

if(response.getStatusLine().getStatusCode()==200)

{

//如果状态码为200,就是正常返回

String result=EntityUtils.toString(response.getEntity());

answerRes = new String(result.getBytes("iso-8859-1"), "UTF-8");

}

return answerRes;

}