首先，创建Oauth类，以备后用。
/*** * @author mrlixirong** -11-16*/public class Oauth {//此处一律设置成public只为方便使用public String oauth_consumer_key=null;public String oauth_consumer_secret=null;public String oauth_nonce=null;public String oauth_timestamp=null;public String oauth_signature_method=null;public String oauth_signature=null;public String oauth_token=null;public String oauth_token_secret=null;public String oauth_version=null;public String oauth_callback=null;public String oauth_verifier=null;public boolean status=false;//该标志与oauth内容无关，此处留用作为授权成功与否标志public Oauth(String key,String secret){this.oauth_callback="null";this.oauth_version="1.0";this.oauth_signature_method="HMAC-SHA1";this.oauth_consumer_key=key;this.oauth_consumer_secret=secret;}}
创建OauthClient类，包含reqeustToken（）和accessToken（）方法
/*** * @author mrlixirong** -11-16*/public class OauthClient {/** 此处传入参数 Context context是用于获取网路连接管理器时使用*/public static Oauth requestToken(Oauth oauth,Context context){oauth.status=false;oauth.oauth_nonce=Utils.getRandomString(32);oauth.oauth_timestamp=String.valueOf(System.currentTimeMillis()/1000);BaseString bs=new BaseString();bs.setHttpMethod("GET");bs.setURL("http://open./cgi-bin/request_token");bs.addParams("oauth_consumer_key", oauth.oauth_consumer_key);bs.addParams("oauth_signature_method", oauth.oauth_signature_method);bs.addParams("oauth_callback", oauth.oauth_callback);bs.addParams("oauth_version", oauth.oauth_version);bs.addParams("oauth_timestamp", oauth.oauth_timestamp);bs.addParams("oauth_nonce", oauth.oauth_nonce);oauth.oauth_signature=Utils.getSignature(bs.getBaseString(),oauth.oauth_consumer_secret+"&");//String params=null;try {params = "oauth_consumer_key="+URLEncoder.encode(oauth.oauth_consumer_key,"UTF-8")+"&oauth_signature_method="+URLEncoder.encode(oauth.oauth_signature_method,"UTF-8")+"&oauth_timestamp="+URLEncoder.encode(oauth.oauth_timestamp,"UTF-8")+"&oauth_nonce="+URLEncoder.encode(oauth.oauth_nonce,"UTF-8")+"&oauth_version="+URLEncoder.encode(oauth.oauth_version,"UTF-8")+"&oauth_signature="+URLEncoder.encode(oauth.oauth_signature,"UTF-8")+"&oauth_callback="+URLEncoder.encode(oauth.oauth_callback,"UTF-8");} catch (UnsupportedEncodingException e1) {e1.printStackTrace();}//try {HttpURLConnection con =null;URL postUrl = new URL("http://open./cgi-bin/request_token?"+params); /** 实际联网中，作为Android手机应用，我们必须根据其网络类型判断是否需要设置代理* 此处只针对是否wifi做出处理，如果不是wifi，默认为2G/3G网络* boolean isProxy=false;ConnectivityManager cm = (ConnectivityManager) context.getSystemService(Context.CONNECTIVITY_SERVICE);if(cm!=null){NetworkInfo ni = cm.getActiveNetworkInfo();if(ni!=null){if(! ni.getTypeName().equals("WIFI")){isProxy=true;//如果不是wifi，则需要设置代理}}}if(isProxy){Sting host=.Proxy.getDefaultHost();//得到默认代理地址，中国移动gprs用户返回10.0.0.172int port=.Proxy.getDefaultPort();//得到默认代理端口，中国移动gprs用户返回80SocketAddress sa=new InetSocketAddress(host,port);Proxy proxy=new Proxy(.Proxy.Type.HTTP,sa);con = (HttpURLConnection) postUrl.openConnection(proxy);}*/con =(HttpURLConnection) postUrl.openConnection();con.setRequestMethod("GET");con.setConnectTimeout(30000);con.setReadTimeout(20000);con.setDoInput(true);int code = con.getResponseCode();if(code==200){InputStream is = con.getInputStream();BufferedReader br = new BufferedReader(new InputStreamReader(is, "UTF-8"));StringBuffer buf = new StringBuffer();String line;while (null != (line = br.readLine())) {buf.append(line).append("\n");}/** 正确的响应结果是：oauth_token=xxx&oauth_token_secret=xxx&oauth_callback_confirmed=true*/String result=buf.toString();if(result.contains("oauth_callback_confirmed=true")){int len=result.length();int i=0;while(result.charAt(i)!='&' && i<len){i++;}oauth.oauth_token=result.substring(12,i);int j=i+1;while(result.charAt(j)!='&' && j<len){j++;}oauth.oauth_token_secret=result.substring(i+20,j);oauth.status=true;//授权成功（ps：此处判断方式不够完善，仅作测试使用）}}} catch (IOException e) {e.printStackTrace();} return oauth;}/** 此处传入参数 Context context是用于获取网路连接管理器时使用*/public static Oauth accessToken(Oauth oauth,Context context){oauth.status=false;oauth.oauth_nonce=Utils.getRandomString(32);oauth.oauth_timestamp=String.valueOf(System.currentTimeMillis()/1000);BaseString bs=new BaseString();bs.setHttpMethod("GET");bs.setURL("http://open./cgi-bin/access_token");bs.addParams("oauth_consumer_key", oauth.oauth_consumer_key);bs.addParams("oauth_nonce", oauth.oauth_nonce);bs.addParams("oauth_signature_method", oauth.oauth_signature_method);bs.addParams("oauth_timestamp", oauth.oauth_timestamp);bs.addParams("oauth_token", oauth.oauth_token);bs.addParams("oauth_verifier",oauth.oauth_verifier);bs.addParams("oauth_version", oauth.oauth_version);oauth.oauth_signature=Utils.getSignature(bs.getBaseString(),oauth.oauth_consumer_secret+"&"+oauth.oauth_token_secret);//String params="";try {params = "oauth_consumer_key="+URLEncoder.encode(oauth.oauth_consumer_key,"UTF-8")+"&oauth_token="+URLEncoder.encode(oauth.oauth_token,"UTF-8")+"&oauth_signature_method="+URLEncoder.encode(oauth.oauth_signature_method,"UTF-8")+"&oauth_timestamp="+URLEncoder.encode(oauth.oauth_timestamp,"UTF-8")+"&oauth_nonce="+URLEncoder.encode(oauth.oauth_nonce,"UTF-8")+"&oauth_version="+URLEncoder.encode(oauth.oauth_version,"UTF-8")+"&oauth_signature="+URLEncoder.encode(oauth.oauth_signature,"UTF-8")+"&oauth_verifier="+URLEncoder.encode(oauth.oauth_verifier,"UTF-8");} catch (UnsupportedEncodingException e1) {e1.printStackTrace();}//try {HttpURLConnection con = null; URL getUrl = new URL("http://open./cgi-bin/access_token?"+params); /** 此处在实际中也要像获取request_token一样判断网络类型设置代理*/con = (HttpURLConnection) getUrl.openConnection();con.setRequestMethod("GET");con.setConnectTimeout(30000);con.setReadTimeout(20000);con.setDoInput(true);int code = con.getResponseCode();if(code==200){InputStream is = con.getInputStream();BufferedReader br = new BufferedReader(new InputStreamReader(is, "UTF-8"));StringBuffer buf = new StringBuffer();String line;while (null != (line = br.readLine())) {buf.append(line).append("\n");}String result=buf.toString();/** 正确的响应结果是：oauth_token=xxx&oauth_token_secret=xxx&name=xxx*/if(result.contains("oauth_token") && result.contains("name")){int len=result.length();int i=0;while(result.charAt(i)!='&' && i<len){i++;}oauth.oauth_token=result.substring(12,i);int j=i+1;while(result.charAt(j)!='&' && j<len){j++;}oauth.oauth_token_secret=result.substring(i+20,j);oauth.status=true;//授权成功（ps：此处判断方式不够完善，仅作测试使用）}}} catch (IOException e) {e.printStackTrace();} return oauth;}}
项目源代码：/detail/mrlixirong/3804385
