open-JSD-10138/src/main/java/com/fr/plugin/xx/gxkg/utils/HttpUtil.java

package com.fr.plugin.xx.gxkg.utils;

import com.fr.json.JSONObject;
import com.fr.log.FineLoggerFactory;
import com.fr.stable.StringUtils;

import javax.net.ssl.HostnameVerifier;
import javax.net.ssl.HttpsURLConnection;
import javax.net.ssl.SSLSession;
import java.io.*;
import java.net.HttpURLConnection;
import java.net.URL;
import java.net.URLEncoder;
import java.util.Iterator;
import java.util.Map;
import java.util.stream.Collectors;

/**
 * @Author xx
 * @Date 2020/12/05
 * @Description
 **/
public class HttpUtil {

    private static HostnameVerifier hv = new HostnameVerifier() {
        @Override
        public boolean verify(String urlHostName, SSLSession session) {
            System.out.println("Warning: URL Host: " + urlHostName + " vs. "
                    + session.getPeerHost());
            return true;
        }
    };

    /**
     * 发送get请求
     *
     * @param url
     * @param param
     * @param header
     * @return
     * @throws IOException
     */
    public static String sendGet(String url, Map<String, String> param, Map<String, String> header) {
        String result = "";
        BufferedReader in = null;
        String urlNameString = url;
        try {
        if (param != null) {
            urlNameString += "?";
            urlNameString += param.entrySet()
                    .stream()
                    .map(entry -> entry.getKey() + "=" + entry.getValue())
                    .collect(Collectors.joining("&"));
        }

        URL realUrl = new URL(urlNameString);
        // 打开和URL之间的连接
        HttpURLConnection connection;
        if (url.startsWith("https")) {
            trustAllHttpsCertificates();
            HttpsURLConnection.setDefaultHostnameVerifier(hv);
            connection = (HttpURLConnection) realUrl.openConnection();
        } else {
            connection = (HttpURLConnection) realUrl.openConnection();
        }
        //设置超时时间
        connection.setDoInput(true);
        connection.setRequestMethod("GET");
        connection.setConnectTimeout(5000);
        connection.setReadTimeout(15000);
        // 设置通用的请求属性
        if (header != null) {
            Iterator<Map.Entry<String, String>> it = header.entrySet().iterator();
            while (it.hasNext()) {
                Map.Entry<String, String> entry = it.next();
                System.out.println(entry.getKey() + ":::" + entry.getValue());
                connection.setRequestProperty(entry.getKey(), entry.getValue());
            }
        }
        connection.setRequestProperty("accept", "*/*");
        connection.setRequestProperty("connection", "Keep-Alive");
        connection.setRequestProperty("user-agent", "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1;SV1)");
        // 建立实际的连接
        connection.connect();
        // 定义 BufferedReader输入流来读取URL的响应，设置utf8防止中文乱码
        in = new BufferedReader(new InputStreamReader(connection.getInputStream(), "utf-8"));
        String line;
        while ((line = in.readLine()) != null) {
            result += line;
        }
        if (in != null) {
            in.close();
        }
        }catch (Exception e){
            FineLoggerFactory.getLogger().error(e,"get url error ,url is:{},error is {}",urlNameString,e.getMessage());
        }
        return result;
    }

    public static String sendPost(String url,Map<String,String> header, JSONObject body) {
        PrintWriter out = null;
        BufferedReader in = null;
        String result = StringUtils.EMPTY;
        String res = StringUtils.EMPTY;
        try {
            String urlNameString = url;

            URL realUrl = new URL(urlNameString);
            // 打开和URL之间的连接
            HttpURLConnection conn;
            if (url.startsWith("https")) {
                trustAllHttpsCertificates();
                HttpsURLConnection.setDefaultHostnameVerifier(hv);
                conn = (HttpURLConnection) realUrl.openConnection();
            } else {
                conn = (HttpURLConnection) realUrl.openConnection();
            }
            // 设置通用的请求属性
            conn.setRequestProperty("accept", "*/*");
            conn.setRequestProperty("connection", "Keep-Alive");
            conn.setRequestProperty("user-agent",
                    "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1;SV1)");
            conn.setRequestProperty("Content-Type","application/json;;charset=UTF-8");
            //conn.setRequestProperty("Content-Type", "multipart/form-data; boundary=----footfoodapplicationrequestnetwork");
            if(header != null){
                header.forEach((k, v) -> {
                    conn.setRequestProperty(k, v);
                });
            }
            // 发送POST请求必须设置如下两行
            conn.setDoOutput(true);
            conn.setDoInput(true);
            //获取请求头

            // 获取URLConnection对象对应的输出流
            out = new PrintWriter(conn.getOutputStream());
            StringBuffer buffer = new StringBuffer();

            // 发送请求参数
            if(body != null){
                out.print(body.toString());
            }
            // flush输出流的缓冲
            out.flush();
            // 定义BufferedReader输入流来读取URL的响应
            in = new BufferedReader(
                    new InputStreamReader(conn.getInputStream()));
            String line;
            while ((line = in.readLine()) != null) {
                result += line;
            }
            res = result;
        } catch (Exception e) {
            FineLoggerFactory.getLogger().error(e.getMessage(),e);
        }
        //使用finally块来关闭输出流、输入流
        finally{
            try{
                if(out!=null){
                    out.close();
                }
                if(in!=null){
                    in.close();
                }
            }
            catch(IOException e){
                FineLoggerFactory.getLogger().error(e.getMessage(),e);
            }
        }
        return res;
    }

    private static void trustAllHttpsCertificates() throws Exception {
        javax.net.ssl.TrustManager[] trustAllCerts = new javax.net.ssl.TrustManager[1];
        javax.net.ssl.TrustManager tm = new miTM();
        trustAllCerts[0] = tm;
        javax.net.ssl.SSLContext sc = javax.net.ssl.SSLContext.getInstance("SSL","SunJSSE");
        sc.init(null, trustAllCerts, null);
        HttpsURLConnection.setDefaultSSLSocketFactory(sc.getSocketFactory());
    }
    

    /**
     * encode url by UTF-8
     * @param url url before encoding
     * @return url after encoding
     */
    public static String encodeUrl(String url){
        String eurl = url;
        try {
            eurl = URLEncoder.encode(url,"UTF-8");
        } catch (UnsupportedEncodingException e) {
        }
        return eurl;
    }

    private static class miTM implements javax.net.ssl.TrustManager,
            javax.net.ssl.X509TrustManager {
        @Override
        public java.security.cert.X509Certificate[] getAcceptedIssuers() {
            return null;
        }

        public boolean isServerTrusted(
                java.security.cert.X509Certificate[] certs) {
            return true;
        }

        public boolean isClientTrusted(
                java.security.cert.X509Certificate[] certs) {
            return true;
        }

        @Override
        public void checkServerTrusted(
                java.security.cert.X509Certificate[] certs, String authType)
                throws java.security.cert.CertificateException {
            return;
        }

        @Override
        public void checkClientTrusted(
                java.security.cert.X509Certificate[] certs, String authType)
                throws java.security.cert.CertificateException {
            return;
        }
    }
}