HttpsUtil

Posted 2020-12-25 god-monk

调用接口：例如腾讯地图、微信
import com.alibaba.fastjson.JSONObject;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import javax.net.ssl.*;
import java.io.BufferedReader;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.OutputStream;
import java.net.ConnectException;
import java.net.URL;
import java.security.cert.CertificateException;
import java.security.cert.X509Certificate;

public class HttpsUtil {

    private static final Logger log = LoggerFactory.getLogger(HttpsUtil.class);

    /**
     * 发送https请求
     * @param requestUrl 请求地址
     * @param requestMethod 请求方式（GET、POST）
     * @param outputStr 提交的数据
     * @return JSONObject(通过JSONObject.get(key)的方式获取json对象的属性值)
     */
    public static JSONObject httpsRequest(String requestUrl, String requestMethod, String outputStr) {

        JSONObject jsonObject = null;
        try {
            // 创建SSLContext对象，并使用我们指定的信任管理器初始化
            TrustManager[] tm = {new X509TrustManager() {
                @Override
                public void checkClientTrusted(X509Certificate[] x509Certificates, String s) throws CertificateException {

                }

                @Override
                public void checkServerTrusted(X509Certificate[] x509Certificates, String s) throws CertificateException {

                }

                @Override
                public X509Certificate[] getAcceptedIssuers() {
                    return new X509Certificate[0];
                }
            }};
            SSLContext sslContext = SSLContext.getInstance("SSL", "SunJSSE");
            sslContext.init(null, tm, new java.security.SecureRandom());
            // 从上述SSLContext对象中得到SSLSocketFactory对象
            SSLSocketFactory ssf = sslContext.getSocketFactory();
            URL url = new URL(requestUrl);
            HttpsURLConnection conn = (HttpsURLConnection) url.openConnection();
            conn.setSSLSocketFactory(ssf);
            conn.setDoOutput(true);
            conn.setDoInput(true);
            conn.setUseCaches(false);
            // 设置请求方式（GET/POST）
            conn.setRequestMethod(requestMethod);
            // 当outputStr不为null时向输出流写数据
            if (null != outputStr) {
                OutputStream outputStream = conn.getOutputStream();
                // 注意编码格式
                outputStream.write(outputStr.getBytes("utf-8"));
                outputStream.close();
            }
            // 从输入流读取返回内容
            InputStream inputStream = conn.getInputStream();
            InputStreamReader inputStreamReader = new InputStreamReader(inputStream, "utf-8");
            BufferedReader bufferedReader = new BufferedReader(inputStreamReader);
            String str = null;
            StringBuffer buffer = new StringBuffer();
            while ((str = bufferedReader.readLine()) != null) {
                buffer.append(str);
            }
            // 释放资源
            bufferedReader.close();
            inputStreamReader.close();
            inputStream.close();
            inputStream = null;
            conn.disconnect();
            jsonObject = JSONObject.parseObject(buffer.toString());
        } catch (ConnectException ce) {
            log.error("连接超时：{}", ce);
        } catch (Exception e) {
            log.error("https请求异常：{}", e);
        }
        return jsonObject;
    }
}

//调用演示：json使用后fastJson

//微信　　

　　JSONObject json = new JSONObject();json.put("touser", touser);json.put("template_id", templatId);
　　JSONObject result = HttpsUtil.httpsRequest(tmpurl, "POST", json.toString());//result为返回json数据
　　JSONObject resultJson = new JSONObject(result);
　　String errmsg = (String) resultJson.get("errmsg");
//腾讯地图
　　String mapUrl = SurveyConstant.ADDRESS_RESOLUTION+URLEncoder.encode("address="+prpLregist.getCheckAddress()+"&key="+ SurveyConstant.MAP_KEY,"utf-8");
　　JSONObject result = new JSONObject(HttpsUtil.httpsRequest(mapUrl, "GET", null));//虽然已经设置编码格式，但有写服务要求转码，转码后再发送请求
　　Integer resultStatus = (Integer) result.get("status");
　　JSONObject resultJson = result.getJSONObject("result");//返回json为hashmap 再次转化获取json数据
　　JSONObject locationJson = resultJson.getJSONObject("location");
　　lat = locationJson.get("lat").toString();lng = locationJson.get("lng").toString();