前兩天登錄某站點我的資源頁，發(fā)現(xiàn)我的下載資源里有近20頁的待評論資源，每個下載資源評論能夠得一個資源分，而某站點的資源評論規(guī)則是每隔60秒才干評論一次，假設(shè)自己一個一個評論的話，得消耗好多時間。因而特開發(fā)了一個某站點下載資源評論器，自己主動的為我評論全部未評論的資源?，F(xiàn)將該評論工具分享例如以下：

????? 下載地址：http://url.cn/Q9unBR

????? 在實現(xiàn)過程中，基本的一個難點是某站點的登錄採用的https協(xié)議，須要數(shù)字證書。

? ? ? 將核心代碼附上：

? ? 1. HTTP請求接口

package suda.mingcai.csdn.http;public interface IHttpClient {String getPage(String url) throws Exception;String sendPost(String url, String param) throws Exception; }

2. HTTP請求基類

package suda.mingcai.csdn.http;import java.net.CookieHandler; import java.net.CookieManager; import java.util.List;import suda.mingcai.csdn.https.HttpsClient;public abstract class HttpClient implements IHttpClient {public final String USER_AGENT = "Mozilla/5.0 (Windows NT 6.3; Trident/7.0; rv:11.0) like Gecko";public final String ACCEPT = "text/html, application/xhtml+xml, */*";protected List<String> m_cookies;static{CookieHandler.setDefault(new CookieManager());}public static HttpClient createHttpRequest(String url){if(url.startsWith("https"))return new HttpsClient();elsereturn new HttpRequest();}public void setCookies(List<String> cookies){this.m_cookies = cookies;}public List<String> getCookies(){return this.m_cookies;}public abstract String getPage(String url) throws Exception;public abstract String sendPost(String url, String param) throws Exception;}
? ? ? 3. HTTPS Request

package suda.mingcai.csdn.https;import java.io.BufferedReader; import java.io.InputStreamReader; import java.io.PrintWriter; import java.net.URL;import javax.net.ssl.HttpsURLConnection;import suda.mingcai.csdn.http.HttpClient;public class HttpsClient extends HttpClient {private HttpsURLConnection m_conn; @Overridepublic String getPage(String url) throws Exception{URL u = new URL(url);m_conn = (HttpsURLConnection) u.openConnection();m_conn.setRequestMethod("GET");m_conn.setUseCaches(false);//set request headersm_conn.setRequestProperty("User-Agent", USER_AGENT);m_conn.setRequestProperty("Accept", ACCEPT);m_conn.setRequestProperty("Accept-Lauguage", "zh-CN,zh;q=0.8,en;q=0.6");//set cookiesif (m_cookies != null){String cookies = "";for (String cookie : m_cookies){cookies += ";" + cookie;}m_conn.addRequestProperty("Cookie", cookies);}//get responseBufferedReader reader = new BufferedReader(new InputStreamReader(m_conn.getInputStream()));StringBuffer response = new StringBuffer();String line;while((line = reader.readLine()) != null)response.append(line);m_cookies = m_conn.getHeaderFields().get("Set-Cookie");reader.close();return response.toString();}public String sendPost(String url, String params) throws Exception{StringBuilder builder = new StringBuilder();URL u = new URL(url);m_conn = (HttpsURLConnection) u.openConnection();m_conn.setUseCaches(false);m_conn.setRequestMethod("POST");m_conn.setRequestProperty("User-Agent", USER_AGENT);m_conn.setRequestProperty("Accept", ACCEPT);m_conn.setRequestProperty("Accept-Lauguage", "zh-CN,zh;q=0.8,en;q=0.6");m_conn.setRequestProperty("Content-Type", "application/x-www-form-urlencoded");m_conn.setRequestProperty("Referer", "https://passport.website.net/account/login");m_conn.setRequestProperty("Connection", "keep-alive");//set cookiesm_conn.setRequestProperty("Content-Length", params.length() + "");System.out.println("send cookies...");if(m_cookies != null){String cookies = "";for(String cookie : m_cookies){cookies += ";" + cookie;}m_conn.addRequestProperty("Cookie", cookies);}m_conn.setDoOutput(true);m_conn.setDoInput(true);PrintWriter out = new PrintWriter(m_conn.getOutputStream());out.print(params);out.flush();out.close();int code = m_conn.getResponseCode();if(code == 200){BufferedReader reader = new BufferedReader(new InputStreamReader(m_conn.getInputStream()));String line;while ((line = reader.readLine()) != null)builder.append(line);reader.close();System.out.println("login successfully!");}else if(code == 302){String redictUrl = m_conn.getHeaderFields().get("Location").get(0);builder.append(redictUrl);}m_cookies = m_conn.getHeaderFields().get("Set-Cookie"); return builder.toString();}}
? ? ?4. HTTP Request

package suda.mingcai.csdn.http;import java.io.BufferedReader; import java.io.InputStreamReader; import java.io.PrintWriter; import java.net.HttpURLConnection; import java.net.URL;public class HttpRequest extends HttpClient {private HttpURLConnection m_conn;@Overridepublic String getPage(String url) throws Exception{URL u = new URL(url);m_conn = (HttpURLConnection) u.openConnection();m_conn.setRequestMethod("GET");m_conn.setUseCaches(false);// set request headersm_conn.setRequestProperty("User-Agent", USER_AGENT);m_conn.setRequestProperty("Accept", ACCEPT);m_conn.setRequestProperty("Accept-Lauguage", "zh-CN,zh;q=0.8,en;q=0.6");//set cookiesif (m_cookies != null){String cookies = "";for (String cookie : m_cookies){cookies += ";" + cookie;}m_conn.addRequestProperty("Cookie", cookies);}// get responseBufferedReader reader = new BufferedReader(new InputStreamReader(m_conn.getInputStream()));StringBuffer response = new StringBuffer();String line;while ((line = reader.readLine()) != null)response.append(line);m_cookies = m_conn.getHeaderFields().get("Set-Cookie");reader.close();return response.toString();}public String sendPost(String url, String params) throws Exception{StringBuilder builder = new StringBuilder();URL u = new URL(url);m_conn = (HttpURLConnection) u.openConnection();m_conn.setUseCaches(false);m_conn.setRequestMethod("POST");m_conn.setRequestProperty("User-Agent", USER_AGENT);m_conn.setRequestProperty("Accept", ACCEPT);m_conn.setRequestProperty("Accept-Lauguage", "zh-CN,zh;q=0.8,en;q=0.6");m_conn.setRequestProperty("Content-Type","application/x-www-form-urlencoded");m_conn.setRequestProperty("Referer","https://passport.website.net/account/login");m_conn.setRequestProperty("Connection", "keep-alive");m_conn.setRequestProperty("Host", "passport.website.net");// set cookiesm_conn.setRequestProperty("Content-Length", params.length() + "");if (m_cookies != null){String cookies = "";for (String cookie : m_cookies){cookies += ";" + cookie;}m_conn.addRequestProperty("Cookie", cookies);}m_conn.setDoOutput(true);m_conn.setDoInput(true);PrintWriter out = new PrintWriter(m_conn.getOutputStream());out.print(params);out.flush();out.close();int code = m_conn.getResponseCode();if (code == 200){BufferedReader reader = new BufferedReader(new InputStreamReader(m_conn.getInputStream()));String line;while ((line = reader.readLine()) != null)builder.append(line);reader.close();}else if (code == 302){String redictUrl = m_conn.getHeaderFields().get("Location").get(0);builder.append(redictUrl);}m_cookies = m_conn.getHeaderFields().get("Set-Cookie");return builder.toString();} }

? ? ? 鑒于時間關(guān)系，不著過多介紹，實現(xiàn)原理不是太難，有興趣的朋友能夠直接下載源代碼。

 

轉(zhuǎn)載于:https://www.cnblogs.com/mfrbuaa/p/3962938.html

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