Simone
android网络通信socket编程http编程介绍htt面网络请求式get请求post两种请求式GET式进行数据请求数据附加URL面传递给服务器比见：POST式则请求数据放HTTP请求作请求部传入服务器所进行HTTP编程前首先要明确究竟使用哪种式进行数据请求 androidHttp编程两种：1、HttpURLConnection；2、HttpClient 首先介绍HttpURLConnection式get请求post请求： [java] view plaincopyprint? private Map paramsValue; String urlPath=null; // 发送 public void initData(){ urlPath=""; paramsValue=new HashMap(); paramsValue.put("username", "111"); paramsValue.put("password", "222"); } private Map paramsValue;String urlPath=null;// 发送谈隐李public void initData(){urlPath="";paramsValue=new HashMap();paramsValue.put("username", "111");paramsValue.put("password", "222"); } get式发起请求： [java] view plaincopyprint? private boolean sendGETRequest(String path, Map params) throws Exception { 含迟 boolean success=false; // StringBuilder用组拼请求址参数 StringBuilder sb = new StringBuilder(); sb.append(path).append("?"); 携穗if (params != null && params.size() != 0) { for (Map.Entry entry : params.entrySet()) { // 请求参数文需要进行URLEncoder编码 gbk/utf8 sb.append(entry.getKey()).append("=").append(URLEncoder.encode(entry.getValue(), "utf-8")); sb.append("&"); } sb.deleteCharAt(sb.length() - 1); } URL url = new URL(sb.toString()); HttpURLConnection conn = (HttpURLConnection) url.openConnection(); conn.setConnectTimeout(20000); conn.setRequestMethod("GET"); if (conn.getResponseCode() == 200) { success= true; } if(conn!=null) conn.disconnect(); return success; } private boolean sendGETRequest(String path, Map params) throws Exception {boolean success=false; // StringBuilder用组拼请求址参数StringBuilder sb = new StringBuilder();sb.append(path).append("?");if (params != null && params.size() != 0) {for (Map.Entry entry : params.entrySet()) {// 请求参数文需要进行URLEncoder编码 gbk/utf8sb.append(entry.getKey()).append("=").append(URLEncoder.encode(entry.getValue(), "utf-8"));sb.append("&");}sb.deleteCharAt(sb.length() - 1);}URL url = new URL(sb.toString()); HttpURLConnection conn = (HttpURLConnection) url.openConnection();conn.setConnectTimeout(20000);conn.setRequestMethod("GET");if (conn.getResponseCode() == 200) {success= true;}if(conn!=null)conn.disconnect();return success;} postt式发起请求： [java] view plaincopyprint? private boolean sendPOSTRequest(String path,Map params) throws Exception{ boolean success=false; //StringBuilder用组拼请求参数 StringBuilder sb = new StringBuilder(); if(params!=null &?ms.size()!=0){ for (Map.Entry entry : params.entrySet()) { sb.append(entry.getKey()).append("=").append(URLEncoder.encode(entry.getValue(), "utf-8")); sb.append("&"); } sb.deleteCharAt(sb.length()-1); } //entity请求体部内容 //文则UTF-8编码username=%E4%B8%AD%E5%9B%BD&password=123 byte[] entity = sb.toString().getBytes(); URL url = new URL(path); HttpURLConnection conn = (HttpURLConnection) url.openConnection(); conn.setConnectTimeout(2000); // 设置POST式 conn.setRequestMethod("POST"); // Post 请求能使用缓存 // urlConn.setUseCaches(false); //要向外输数据要设置 conn.setDoOutput(true); // 配置本连接Content-type配置application/x-www-form-urlencoded //设置content－type获输流便于想服务器发送信息 //POST请求定要设置 conn.setRequestProperty("Content-Type", "application/x-www-form-urlencoded"); conn.setRequestProperty("Content-Length", entity.length+""); // 要注意connection.getOutputStream隐含进行connect OutputStream out = conn.getOutputStream(); //写入参数值 out.write(entity); //刷新、关闭 out.flush(); out.close(); if (conn.getResponseCode() == 200) { success= true; } if(conn!=null) conn.disconnect(); return success; } private boolean sendPOSTRequest(String path,Map params) throws Exception{boolean success=false; //StringBuilder用组拼请求参数StringBuilder sb = new StringBuilder();if(params!=null &?ms.size()!=0){for (Map.Entry entry : params.entrySet()) {sb.append(entry.getKey()).append("=").append(URLEncoder.encode(entry.getValue(), "utf-8"));sb.append("&"); }sb.deleteCharAt(sb.length()-1);}//entity请求体部内容//文则UTF-8编码username=%E4%B8%AD%E5%9B%BD&password=123byte[] entity = sb.toString().getBytes();URL url = new URL(path);HttpURLConnection conn = (HttpURLConnection) url.openConnection();conn.setConnectTimeout(2000);// 设置POST式 conn.setRequestMethod("POST");// Post 请求能使用缓存 // urlConn.setUseCaches(false); //要向外输数据要设置conn.setDoOutput(true);// 配置本连接Content-type配置application/x-www-form-urlencoded//设置content－type获输流便于想服务器发送信息//POST请求定要设置conn.setRequestProperty("Content-Type", "application/x-www-form-urlencoded");conn.setRequestProperty("Content-Length", entity.length+"");// 要注意connection.getOutputStream隐含进行connect OutputStream out = conn.getOutputStream();//写入参数值out.write(entity);//刷新、关闭 out.flush(); out.close();if (conn.getResponseCode() == 200) {success= true;}if(conn!=null)conn.disconnect();return success;}介绍HttpClient式相比HttpURLConnectionHttpClient封装更简单易用些看实例： get式发起请求： [java] view plaincopyprint? public String getRequest(String UrlPath,Map params){ String content=null; StringBuilder buf = new StringBuilder(); if(params!=null &?ms.size()!=0){ for (Map.Entry entry : params.entrySet()) { buf.append(entry.getKey()).append("=").append(URLEncoder.encode(entry.getValue(), "utf-8")); buf.append("&"); } buf.deleteCharAt(buf.length()-1); } content= buf.toString(); HttpClient httpClient = new DefaultHttpClient(); HttpGet getMethod = new HttpGet(content); HttpResponse response = null; try { response = httpClient.execute(getMethod); } catch (ClientProtocolException e) { e.printStackTrace(); } catch (IOException e) { e.printStackTrace(); }catch (Exception e) { e.printStackTrace(); } if (response!=null&&response.getStatusLine().getStatusCode() == HttpStatus.SC_OK) { try { content = EntityUtils.toString(response.getEntity()); } catch (ParseException e) { e.printStackTrace(); } catch (IOException e) { e.printStackTrace(); } } return content; } public String getRequest(String UrlPath,Map params){String content=null;StringBuilder buf = new StringBuilder();if(params!=null &?ms.size()!=0){for (Map.Entry entry : params.entrySet()) {buf.append(entry.getKey()).append("=").append(URLEncoder.encode(entry.getValue(), "utf-8"));buf.append("&"); }buf.deleteCharAt(buf.length()-1);}content= buf.toString();HttpClient httpClient = new DefaultHttpClient();HttpGet getMethod = new HttpGet(content);HttpResponse response = null;try {response = httpClient.execute(getMethod); } catch (ClientProtocolException e) {e.printStackTrace();} catch (IOException e) {e.printStackTrace();}catch (Exception e) {e.printStackTrace();} if (response!=null&&response.getStatusLine().getStatusCode() == HttpStatus.SC_OK) { try {content = EntityUtils.toString(response.getEntity());} catch (ParseException e) {e.printStackTrace();} catch (IOException e) {e.printStackTrace();}}return content;}postt式发起请求： [java] view plaincopyprint? private boolean sendPOSTRequestHttpClient(String path,Map params) throws Exception { boolean success = false; // 封装请求参数 List pair = new ArrayList(); if (params != null && !params.isEmpty()) { for (Map.Entry entry : params.entrySet()) { pair.add(new BasicNameValuePair(entry.getKey(), entry .getValue())); } } // 请求参数变请求体部 UrlEncodedFormEntity uee = new UrlEncodedFormEntity(pair, "utf-8"); // 使用HttpPost象设置发送URL路径 HttpPost post = new HttpPost(path); // 发送请求体 post.setEntity(uee); // 创建浏览器象POST象向服务器发送并返响应消息 DefaultHttpClient dhc = new DefaultHttpClient(); HttpResponse response = dhc.execute(post); if (response.getStatusLine().getStatusCode() == 200) { success = true; } return success; } private boolean sendPOSTRequestHttpClient(String path,Map params) throws Exception {boolean success = false;// 封装请求参数List pair = new ArrayList();if (params != null && !params.isEmpty()) {for (Map.Entry entry : params.entrySet()) {pair.add(new BasicNameValuePair(entry.getKey(), entry.getValue()));}}// 请求参数变请求体部UrlEncodedFormEntity uee = new UrlEncodedFormEntity(pair, "utf-8");// 使用HttpPost象设置发送URL路径HttpPost post = new HttpPost(path);// 发送请求体post.setEntity(uee);// 创建浏览器象POST象向服务器发送并返响应消息DefaultHttpClient dhc = new DefaultHttpClient();HttpResponse response = dhc.execute(post);if (response.getStatusLine().getStatusCode() == 200) {success = true;}return success;}
