https工具類

import org.apache.commons.lang.StringUtils;

import javax.net.ssl.*;
import java.io.*;
import java.net.URL;
import java.security.SecureRandom;
import java.security.cert.CertificateException;
import java.security.cert.X509Certificate;
import java.util.List;
import java.util.Map;


public class HttpsRequest {

    /*
     * 處理https GET請求
     * 請求地址、請求方法、參數
     * */
    public static String httpsRequestGet(String requestUrl,String requestMethod,String token){
        StringBuffer buffer=null;
        try{
            //建立SSLContext
            SSLContext sslContext=SSLContext.getInstance("SSL");
            TrustManager[] tm={new MyX509TrustManager()};
            //初始化
            sslContext.init(null, tm, new java.security.SecureRandom());;
            //獲取SSLSocketFactory對象
            SSLSocketFactory ssf=sslContext.getSocketFactory();
            URL url=new URL(requestUrl);
            HttpsURLConnection conn=(HttpsURLConnection)url.openConnection();
            conn.setDoOutput(true);
            conn.setDoInput(true);
            conn.setUseCaches(false);
            conn.setRequestMethod(requestMethod);
            conn.setRequestProperty("Authorization", "Bearer " + token);
            //設置當前實例使用的SSLSoctetFactory
            conn.setSSLSocketFactory(ssf);
            conn.connect();

            //讀取服務器端返回的內容
            InputStream is=conn.getInputStream();
            InputStreamReader isr=new InputStreamReader(is,"utf-8");
            BufferedReader br=new BufferedReader(isr);
            buffer=new StringBuffer();
            String line=null;
            while((line=br.readLine())!=null){
                buffer.append(line);
            }
        }catch(Exception e){
            e.printStackTrace();
        }
        return buffer.toString();
    }

    /** * 向指定URL發送GET方法的請求,默認編碼UTF-8 * * @param url * 發送請求的URL * @param param * 請求參數，請求參數應該是 name1=value1&name2=value2 的形式。 * @return URL 所表明遠程資源的響應結果 */
    public static String sendGet(String url, String param,String token) {
        return sendGet(url, param, "utf-8",token);
    }

    /** * 向指定URL發送GET方法的請求 * * @param url * 發送請求的URL * @param param * 請求參數，請求參數應該是 name1=value1&name2=value2 的形式。 * @param charset * 網頁編碼 * @return URL 所表明遠程資源的響應結果 */
    public static String sendGet(String url, String param,String charSet,String token) {
        String result = "";
        BufferedReader in = null;
        try {
            SSLContext ctx = SSLContext.getInstance("TLS");
            ctx.init(new KeyManager[0],
                    new TrustManager[] { new DefaultTrustManager() },
                    new SecureRandom());
            SSLContext.setDefault(ctx);

            String urlNameString = url + "?" + param;
            URL realUrl = new URL(urlNameString);
            // 打開和URL之間的鏈接
            HttpsURLConnection connection = (HttpsURLConnection) realUrl.openConnection();
            // 設置通用的請求屬性
            connection.setRequestProperty("accept", "*/*");
            connection.setRequestProperty("connection", "Keep-Alive");
            connection.setRequestProperty("user-agent",
                    "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1;SV1)");
            if(StringUtils.isNotEmpty(token)) {
                connection.addRequestProperty("token", token);
            }
            connection.setHostnameVerifier(new HostnameVerifier() {

                @Override
                public boolean verify(String hostname, SSLSession session) {
                    return true;
                }
            });
            // 創建實際的鏈接
            connection.connect();
            // 獲取全部響應頭字段
            Map<String, List<String>> map = connection.getHeaderFields();
            // 遍歷全部的響應頭字段
            for (String key : map.keySet()) {
                //System.out.println(key + "--->" + map.get(key));
            }
            // 定義 BufferedReader輸入流來讀取URL的響應
            in = new BufferedReader(new InputStreamReader(
                    connection.getInputStream(),charSet));
            String line;
            while ((line = in.readLine()) != null) {
                result += line;
            }
        } catch (Exception e) {
            System.out.println("發送GET請求出現異常！" + e);
            e.printStackTrace();
        }
        // 使用finally塊來關閉輸入流
        finally {
            try {
                if (in != null) {
                    in.close();
                }
            } catch (Exception e2) {
                e2.printStackTrace();
            }
        }
        return result;
    }


    /** * 向指定 URL 發送POST方法的請求，默認編碼UTF-8 * * @param url * 發送請求的 URL * @param param * 請求參數，請求參數應該是 name1=value1&name2=value2 的形式。 * @return 所表明遠程資源的響應結果 */
    public static String sendPost(String url, String param){
        return sendPost(url, param, "utf-8");
    }

    /** * 向指定 URL 發送POST方法的請求 * * @param url * 發送請求的 URL * @param param * 請求參數，請求參數應該是 name1=value1&name2=value2 的形式。 * @param charSet * 網頁編碼 * @return 所表明遠程資源的響應結果 */
    public static String sendPost(String url, String param , String charSet) {
        PrintWriter out = null;
        BufferedReader in = null;
        String result = "";
        try {
            SSLContext ctx = SSLContext.getInstance("TLS");
            ctx.init(new KeyManager[0],
                    new TrustManager[] { new DefaultTrustManager() },
                    new SecureRandom());
            SSLContext.setDefault(ctx);


            URL realUrl = new URL(url);
            // 打開和URL之間的鏈接
            HttpsURLConnection conn = (HttpsURLConnection) realUrl.openConnection();
            // 設置通用的請求屬性
            conn.setRequestProperty("accept", "*/*");
            conn.setRequestProperty("connection", "Keep-Alive");
            conn.setRequestProperty("user-agent",
                    "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1;SV1)");

            // 發送POST請求必須設置以下兩行
            conn.setDoOutput(true);
            conn.setDoInput(true);

            conn.setHostnameVerifier(new HostnameVerifier() {

                @Override
                public boolean verify(String hostname, SSLSession session) {
                    return true;
                }
            });

            // 獲取URLConnection對象對應的輸出流
            out = new PrintWriter(conn.getOutputStream());
            // 發送請求參數
            out.print(param);
            // flush輸出流的緩衝
            out.flush();
            // 定義BufferedReader輸入流來讀取URL的響應
            in = new BufferedReader(
                    new InputStreamReader(conn.getInputStream(),charSet));
            String line;
            while ((line = in.readLine()) != null) {
                result += line;
            }
        } catch (Exception e) {
            System.out.println("發送 POST 請求出現異常！"+e);
            e.printStackTrace();
        }
        //使用finally塊來關閉輸出流、輸入流
        finally{
            try{
                if(out!=null){
                    out.close();
                }
                if(in!=null){
                    in.close();
                }
            }
            catch(IOException ex){
                ex.printStackTrace();
            }
        }
        return result;
    }



    private static class DefaultTrustManager implements X509TrustManager {

        @Override
        public void checkClientTrusted(X509Certificate[] arg0, String arg1)
                throws CertificateException {
        }

        @Override
        public void checkServerTrusted(X509Certificate[] arg0, String arg1)
                throws CertificateException {
        }

        @Override
        public X509Certificate[] getAcceptedIssuers() {
            return null;
        }

    }
    public static String httpsRequest(String requestUrl,String requestMethod,String outputStr){
        StringBuffer buffer=null;
        try{
            //建立SSLContext
            SSLContext sslContext=SSLContext.getInstance("SSL");
            TrustManager[] tm={new MyX509TrustManager()};
            //初始化
            sslContext.init(null, tm, new java.security.SecureRandom());;
            //獲取SSLSocketFactory對象
            SSLSocketFactory ssf=sslContext.getSocketFactory();
            URL url=new URL(requestUrl);
            HttpsURLConnection conn=(HttpsURLConnection)url.openConnection();
            conn.setDoOutput(true);
            conn.setDoInput(true);
            conn.setUseCaches(false);
            conn.setRequestMethod(requestMethod);
            //設置當前實例使用的SSLSoctetFactory
            conn.setSSLSocketFactory(ssf);
            conn.connect();
            //往服務器端寫內容
            if(null!=outputStr){
                OutputStream os=conn.getOutputStream();
                os.write(outputStr.getBytes("utf-8"));
                os.close();
            }
            //讀取服務器端返回的內容
            InputStream is=conn.getInputStream();
            InputStreamReader isr=new InputStreamReader(is,"utf-8");
            BufferedReader br=new BufferedReader(isr);
            buffer=new StringBuffer();
            String line=null;
            while((line=br.readLine())!=null){
                buffer.append(line);
            }
        }catch(Exception e){
            e.printStackTrace();
        }
        return buffer.toString();
    }
}