android使用apache httpclient发送post请求
package com.liuc; import java.io.ByteArrayOutputStream; import java.io.IOException; import java.io.InputStream; import java.io.UnsupportedEncodingException; import java.util.ArrayList; import java.util.List; import java.util.Map; import org.apache.http.HttpResponse; import org.apache.http.NameValuePair; import org.apache.http.client.ClientProtocolException; import org.apache.http.client.HttpClient; import org.apache.http.client.config.RequestConfig; import org.apache.http.client.entity.UrlEncodedFormEntity; import org.apache.http.client.methods.HttpPost; import org.apache.http.impl.client.HttpClients; import org.apache.http.message.BasicNameValuePair; public class HttpPostUtil { public static String sendHttpPost(Map<String, String> map,String encode,String path){ List<NameValuePair> list=new ArrayList<NameValuePair>(); if (map!=null&&!map.isEmpty()) { for(Map.Entry<String, String> entry:map.entrySet()){ list.add(new BasicNameValuePair(entry.getKey(), entry.getValue())); } } try { //实现将参数封装到表单中,也就是请求体重 UrlEncodedFormEntity entity=new UrlEncodedFormEntity(list,encode); //使用post方式提交数据 HttpPost httpPost=new HttpPost(path); httpPost.setEntity(entity); RequestConfig requestConfig = RequestConfig.custom(). setSocketTimeout(2000).setConnectTimeout(2000).build();//4.3之后的设置请求和传输超时时间 httpPost.setConfig(requestConfig); //执行post请求 //3.X是这样的 //HttpClient httpClient=new DefaultHttpClient(); //4.x是这样的 HttpClient httpClient = HttpClients.createDefault(); HttpResponse httpResponse=httpClient.execute(httpPost); if (httpResponse.getStatusLine().getStatusCode()==200) { return getStringForInputStream(httpResponse.getEntity().getContent(),encode); } } catch (UnsupportedEncodingException e) { e.printStackTrace(); } catch (ClientProtocolException e) { e.printStackTrace(); } catch (IOException e) { e.printStackTrace(); } return path; } private static String getStringForInputStream(InputStream inputStream, String encode) { ByteArrayOutputStream stream=new ByteArrayOutputStream(); byte[] data=new byte[1024]; int len=0; String result=""; try { if (inputStream != null) { while ((len = inputStream.read(data)) != -1) { stream.write(data, 0, len); } result=new String(stream.toByteArray(),encode); } } catch (Exception e) { } return result; } }
对于各个版本写法的区别。可以参考:http://www.open-open.com/lib/view/open1383751765321.html
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