java get post請求工具

package com.shujunjun.common.util;

import com.shujunjun.common.util.constant.HttpConstant;
import org.apache.commons.lang3.ObjectUtils;
import org.apache.commons.lang3.StringUtils;
import org.apache.http.Consts;
import org.apache.http.HttpEntity;
import org.apache.http.NameValuePair;
import org.apache.http.ParseException;
import org.apache.http.client.entity.UrlEncodedFormEntity;
import org.apache.http.client.methods.CloseableHttpResponse;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.impl.client.CloseableHttpClient;
import org.apache.http.impl.client.HttpClientBuilder;
import org.apache.http.message.BasicNameValuePair;
import org.apache.http.ssl.SSLContextBuilder;
import org.apache.http.util.EntityUtils;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import javax.net.ssl.*;
import java.io.*;
import java.net.ConnectException;
import java.net.SocketTimeoutException;
import java.net.URL;
import java.net.URLConnection;
import java.nio.charset.StandardCharsets;
import java.security.cert.X509Certificate;
import java.util.ArrayList;
import java.util.List;
import java.util.Map;

/**
 * @author wsh
 * date 2022/11/23/21:47
 */
@SuppressWarnings("unused")
public class HttpUtils {
    private static final Logger log = LoggerFactory.getLogger(HttpUtils.class);

    /**
     * 向指定 URL 發(fā)送GET方法的請求
     *
     * @param url 發(fā)送請求的 URL
     * @return 所代表遠(yuǎn)程資源的響應(yīng)結(jié)果
     */
    public static String sendGet(String url) {
        return sendGet(url, StringUtils.EMPTY);
    }

    public static CloseableHttpClient getClient() {
        CloseableHttpClient httpClient = null;
        try {
            HttpClientBuilder httpClientBuilder = HttpClientBuilder.create();

            // 信任所有
            SSLContext sslContext = new SSLContextBuilder().loadTrustMaterial(null, (chain, authType) -> true).build();

            httpClientBuilder.setSSLContext(sslContext);
            httpClient = httpClientBuilder.build();
        } catch (Exception e) {
            log.error(e.getMessage(), e);
        }
        return httpClient;
    }

    /**
     * 發(fā)送HttpGet請求
     *
     * @param url 請求地址，不帶參數(shù)
     * @return 返回信息
     */
    public static String sendSslGet(String url) {

        HttpGet httpget = new HttpGet(url);
        CloseableHttpResponse response = null;
        try {
            response = getClient().execute(httpget);
        } catch (IOException e1) {
            e1.printStackTrace();
        }
        String result = null;
        try {
            assert response != null;
            HttpEntity entity = response.getEntity();
            if (entity != null) {
                result = EntityUtils.toString(entity);
            }
        } catch (ParseException | IOException e) {
            log.error(e.getMessage(), e);
        } finally {
            try {
                if (ObjectUtils.isNotEmpty(response)) {
                    response.close();
                }
            } catch (IOException e) {
                log.error(e.getMessage(), e);
            }
        }
        return result;
    }

    /**
     * 發(fā)送HttpPost請求，參數(shù)為map
     *
     * @param url 請求地址
     * @param map 參數(shù)
     * @return 返回信息
     */
    public static String post(String url, Map<String, String> map) {
        List<NameValuePair> formParams = new ArrayList<>();
        for (Map.Entry<String, String> entry : map.entrySet()) {
            formParams.add(new BasicNameValuePair(entry.getKey(), entry.getValue()));
        }
        UrlEncodedFormEntity entity = new UrlEncodedFormEntity(formParams, Consts.UTF_8);
        HttpPost httppost = new HttpPost(url);
        httppost.setEntity(entity);
        CloseableHttpResponse response = null;
        try {
            response = getClient().execute(httppost);
        } catch (IOException e) {
            e.printStackTrace();
        }
        assert response != null;
        HttpEntity entity1 = response.getEntity();
        String result = null;
        try {
            result = EntityUtils.toString(entity1);
        } catch (ParseException | IOException e) {
            log.error(e.getMessage(), e);
        }
        return result;
    }

    /**
     * 向指定 URL 發(fā)送GET方法的請求
     *
     * @param url   發(fā)送請求的 URL
     * @param param 請求參數(shù)，請求參數(shù)應(yīng)該是 name1=value1&name2=value2 的形式。
     * @return 所代表遠(yuǎn)程資源的響應(yīng)結(jié)果
     */
    public static String sendGet(String url, String param) {
        return sendGet(url, param, HttpConstant.UTF8);
    }

    /**
     * 向指定 URL 發(fā)送GET方法的請求
     *
     * @param url         發(fā)送請求的 URL
     * @param param       請求參數(shù)，請求參數(shù)應(yīng)該是 name1=value1&name2=value2 的形式。
     * @param contentType 編碼類型
     * @return 所代表遠(yuǎn)程資源的響應(yīng)結(jié)果
     */
    public static String sendGet(String url, String param, String contentType) {
        StringBuilder result = new StringBuilder();
        BufferedReader in = null;
        try {
            String urlNameString = StringUtils.isNotBlank(param) ? url + "?" + param : url;
            log.info("sendGet - {}", urlNameString);
            URL realUrl = new URL(urlNameString);
            URLConnection connection = realUrl.openConnection();
            connection.setRequestProperty("accept", "*/*");
            connection.setRequestProperty("connection", "Keep-Alive");
            connection.setRequestProperty("user-agent", "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1;SV1)");
            connection.connect();
            in = new BufferedReader(new InputStreamReader(connection.getInputStream(), contentType));
            String line;
            while ((line = in.readLine()) != null) {
                result.append(line);
            }
            log.info("recv - {}", result);
        } catch (ConnectException e) {
            log.error("調(diào)用HttpUtils.sendGet ConnectException, url=" + url + ",param=" + param, e);
        } catch (SocketTimeoutException e) {
            log.error("調(diào)用HttpUtils.sendGet SocketTimeoutException, url=" + url + ",param=" + param, e);
        } catch (IOException e) {
            log.error("調(diào)用HttpUtils.sendGet IOException, url=" + url + ",param=" + param, e);
        } catch (Exception e) {
            log.error("調(diào)用HttpsUtil.sendGet Exception, url=" + url + ",param=" + param, e);
        } finally {
            try {
                if (in != null) {
                    in.close();
                }
            } catch (Exception ex) {
                log.error("調(diào)用in.close Exception, url=" + url + ",param=" + param, ex);
            }
        }
        return result.toString();
    }

    /**
     * 向指定 URL 發(fā)送POST方法的請求
     *
     * @param url   發(fā)送請求的 URL
     * @param param 請求參數(shù)，請求參數(shù)應(yīng)該是 name1=value1&name2=value2 的形式。
     * @return 所代表遠(yuǎn)程資源的響應(yīng)結(jié)果
     */
    public static String sendPost(String url, String param) {
        PrintWriter out = null;
        BufferedReader in = null;
        StringBuilder result = new StringBuilder();
        try {
            log.info("sendPost - {}", url);
            URL realUrl = new URL(url);
            URLConnection conn = realUrl.openConnection();
            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("Accept-Charset", "utf-8");
            conn.setRequestProperty("contentType", "utf-8");
            conn.setDoOutput(true);
            conn.setDoInput(true);
            out = new PrintWriter(conn.getOutputStream());
            out.print(param);
            out.flush();
            in = new BufferedReader(new InputStreamReader(conn.getInputStream(), StandardCharsets.UTF_8));
            String line;
            while ((line = in.readLine()) != null) {
                result.append(line);
            }
            log.info("recv - {}", result);
        } catch (ConnectException e) {
            log.error("調(diào)用HttpUtils.sendPost ConnectException, url=" + url + ",param=" + param, e);
        } catch (SocketTimeoutException e) {
            log.error("調(diào)用HttpUtils.sendPost SocketTimeoutException, url=" + url + ",param=" + param, e);
        } catch (IOException e) {
            log.error("調(diào)用HttpUtils.sendPost IOException, url=" + url + ",param=" + param, e);
        } catch (Exception e) {
            log.error("調(diào)用HttpsUtil.sendPost Exception, url=" + url + ",param=" + param, e);
        } finally {
            try {
                if (out != null) {
                    out.close();
                }
                if (in != null) {
                    in.close();
                }
            } catch (IOException ex) {
                log.error("調(diào)用in.close Exception, url=" + url + ",param=" + param, ex);
            }
        }
        return result.toString();
    }

    @SuppressWarnings("all")
    public static String sendSslPost(String url, String param) {
        StringBuilder result = new StringBuilder();
        String urlNameString = url + "?" + param;
        try {
            log.info("sendSSLPost - {}", urlNameString);
            SSLContext sc = SSLContext.getInstance("SSL");
            sc.init(null, new TrustManager[]{new TrustAnyTrustManager()}, new java.security.SecureRandom());
            URL console = new URL(urlNameString);
            HttpsURLConnection conn = (HttpsURLConnection) console.openConnection();
            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("Accept-Charset", "utf-8");
            conn.setRequestProperty("contentType", "utf-8");
            conn.setDoOutput(true);
            conn.setDoInput(true);

            conn.setSSLSocketFactory(sc.getSocketFactory());
            conn.setHostnameVerifier(new TrustAnyHostnameVerifier());
            conn.connect();
            InputStream is = conn.getInputStream();
            BufferedReader br = new BufferedReader(new InputStreamReader(is));
            String ret;
            while ((ret = br.readLine()) != null) {
                if (!"".equals(ret.trim())) {
                    result.append(new String(ret.getBytes(StandardCharsets.ISO_8859_1), StandardCharsets.UTF_8));
                }
            }
            log.info("recv - {}", result);
            conn.disconnect();
            br.close();
        } catch (ConnectException e) {
            log.error("調(diào)用HttpUtils.sendSSLPost ConnectException, url=" + url + ",param=" + param, e);
        } catch (SocketTimeoutException e) {
            log.error("調(diào)用HttpUtils.sendSSLPost SocketTimeoutException, url=" + url + ",param=" + param, e);
        } catch (IOException e) {
            log.error("調(diào)用HttpUtils.sendSSLPost IOException, url=" + url + ",param=" + param, e);
        } catch (Exception e) {
            log.error("調(diào)用HttpsUtil.sendSSLPost Exception, url=" + url + ",param=" + param, e);
        }
        return result.toString();
    }

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

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

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

    private static class TrustAnyHostnameVerifier implements HostnameVerifier {
        @Override
        public boolean verify(String hostname, SSLSession session) {
            return true;
        }
    }
}