httpsUtils外部接口调用

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.OutputStream;
import java.io.OutputStreamWriter;
import java.net.URL;
import java.security.KeyManagementException;
import java.security.NoSuchAlgorithmException;
import java.security.SecureRandom;
import java.security.cert.CertificateException;
import java.security.cert.X509Certificate;

import javax.net.ssl.HostnameVerifier;
import javax.net.ssl.HttpsURLConnection;
import javax.net.ssl.KeyManager;
import javax.net.ssl.SSLContext;
import javax.net.ssl.SSLSession;
import javax.net.ssl.SSLSocketFactory;
import javax.net.ssl.TrustManager;
import javax.net.ssl.X509TrustManager;

import org.apache.commons.lang3.StringUtils;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

/**
 * HTTPS工具类.
 * 
 */
public class HttpsUtils {
    
    
    
    private static Logger logger = LoggerFactory.getLogger(HttpsUtils.class);

    private static final class DefaultTrustManager implements X509TrustManager {
    
    
        @Override
        public void checkClientTrusted(X509Certificate[] chain, String authType) throws CertificateException {
    
    
        }

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

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

    /**
     * 发送GET请求.
     * 
     * @param url
     * @param param
     * @return
     */
    public static String sendGet(String url, String param, String token) {
    
    
        // 参数内容为空，直接返回
        if(StringUtils.isEmpty(param) || "{}".equals(param)){
    
    
            return null;
        }
        
        String result = "";// 结果内容
        try{
    
    
            // 获取连接
            HttpsURLConnection httpsConn = getHttpsURLConnection(url, "GET", token);
            // 设置文件长度
            httpsConn.setRequestProperty("Content-Length", String.valueOf(param.getBytes().length));
            // 获取返回结果
            result = getResultFromStream(httpsConn.getInputStream());
        }catch(Exception e){
    
    
            logger.error(url + param + "发送GET请求出现异常！", e);
        }

        return result;
    }

    /**
     * 发送POST请求.
     * 
     * @param url
     * @param param
     * @param token 
     * @return
     */
    public static String sendPost(String url, String param, String token) {
    
    
        // 参数内容为空，直接返回
        if(StringUtils.isEmpty(param) || "{}".equals(param)){
    
    
            return null;
        }
        
        String result = "";// 结果内容
        try{
    
    
            // 获取连接
            HttpsURLConnection httpsConn = getHttpsURLConnection(url, "POST", token);
            // 设置文件长度
            httpsConn.setRequestProperty("Content-Length", String.valueOf(param.getBytes().length));
            // 添加参数信息
            setParamToStream(httpsConn.getOutputStream(), param);
            // 获取返回结果
            result = getResultFromStream(httpsConn.getInputStream());
        }catch(Exception e){
    
    
            logger.error(url + param + "发送POST请求出现异常！", e);
        }
        
        return result;
    }

    /**
     * 获取请求连接.
     * 
     * @param url
     * @param method
     * @param token
     * @return
     * @throws IOException
     */
    private static HttpsURLConnection getHttpsURLConnection(String url, String method, String token) throws IOException {
    
    
        SSLContext ctx = null;
        try {
    
    
            ctx = SSLContext.getInstance("TLS");
            ctx.init(new KeyManager[0], new TrustManager[] {
    
     new DefaultTrustManager() }, new SecureRandom());
        } catch (KeyManagementException e) {
    
    
            e.printStackTrace();
        } catch (NoSuchAlgorithmException e) {
    
    
            e.printStackTrace();
        }
        SSLSocketFactory ssf = ctx.getSocketFactory();

        URL httpsUrl = new URL(url);
        HttpsURLConnection httpsConn = (HttpsURLConnection) httpsUrl.openConnection();
        httpsConn.setSSLSocketFactory(ssf);
        httpsConn.setHostnameVerifier(new HostnameVerifier() {
    
    
            @Override
            public boolean verify(String arg0, SSLSession arg1) {
    
    
                return true;
            }
        });
        httpsConn.setRequestMethod(method);
        // post请求参数
        if("POST".equals(method.toUpperCase())){
    
    
            httpsConn.setDoInput(true);
            httpsConn.setDoOutput(true);
        }
        httpsConn.setRequestProperty("accept", "application/json");
        httpsConn.setRequestProperty("connection", "Keep-Alive");
        httpsConn.setRequestProperty("Content-Type", "application/json;charset=UTF-8");
        // 震坤行数据传输时，token内容需要放到header中验证
        if(StringUtils.isNotEmpty(token)){
    
    
            httpsConn.setRequestProperty("token", token);
        }
        
        return httpsConn;
    }
    
    /**
     * 从输入流中获取结果信息.
     * 
     * @param is
     * @return
     * @throws IOException
     */
    private static String getResultFromStream(InputStream is){
    
    
        String result = "";
        BufferedReader in = null;
        
        try{
    
    
            // 定义BufferedReader输入流来读取URL的响应
            in = new BufferedReader(new InputStreamReader(is));
            String line;
            while ((line = in.readLine()) != null) {
    
    
                result += line;
            }
        } catch (Exception e) {
    
    
            logger.error("从输入流中获取结果信息出现异常！", e);
        }
        
        // 使用finally块来关闭输出流
        finally{
    
    
            try{
    
    
                if(in != null){
    
    
                    in.close();
                }
            }
            catch(Exception ex){
    
    
                logger.error("关闭输入流出现异常！", ex);
            }
        }
        
        return result;
    }
    
    /**
     * 向输出流中添加参数内容.
     * 
     * @param os
     * @param param
     * @throws IOException
     */
    private static void setParamToStream(OutputStream os, String param){
    
    
        OutputStreamWriter out = null;
        try {
    
    
            // 获取URLConnection对象对应的输出流
            out = new OutputStreamWriter(os, "UTF-8");
            // 发送请求参数
            out.write(param);
            // flush输出流的缓冲
            out.flush();
        } catch (Exception e) {
    
    
            logger.error(param + "向输出流中添加参数内容出现异常！", e);
        }
        
        // 使用finally块来关闭输出流
        finally{
    
    
            try{
    
    
                if(out != null){
    
    
                    out.close();
                }
            }
            catch(Exception ex){
    
    
                logger.error(param + "关闭输出流出现异常！", ex);
            }
        }
    }
}