JAVA使用HttpClient發送帶請求頭得post和get！！！put、delete請求-------忽略ssl驗證

/**
     * POST請求（帶json參數）
     * @param url 請求地址
     * @param socketTimeout 響應超時時間，根據業務而定，單位毫秒;如果訪問一個接口,多少時間內無法返回數據,就直接放棄此次調用
     * @param jsonParam	json參數
     * @param headerMap 請求頭             
     * @return
     */
    public static String doHeaderPostJson(String url, int socketTimeout, Map<String, String> headerMap, String jsonParam) {
        // 創建Httpclient對象
        CloseableHttpClient httpClient = HttpClients.createDefault();
        CloseableHttpResponse response = null;
        String resultString = "";
        try {
            // 創建Http Post請求
            HttpPost httpPost = new HttpPost(url);

            // 設置請求超時
            RequestConfig requestConfig = RequestConfig.custom()
                    // 設置連接超時時間,單位毫秒。
                    .setConnectTimeout(5000)
                    // 從連接池獲取到連接的超時,單位毫秒。
                    .setConnectionRequestTimeout(1000)
                    // 請求獲取數據的超時時間,單位毫秒; 如果訪問一個接口,多少時間內無法返回數據,就直接放棄此次調用。
                    .setSocketTimeout(socketTimeout).build();
            httpPost.setConfig(requestConfig);

            //創建頭信息
            headerMap.entrySet().forEach(entry->httpPost.addHeader(entry.getKey(), entry.getValue()));
            // 創建請求內容
            if (StringUtils.isNotBlank(jsonParam)) {
                StringEntity entity = new StringEntity(jsonParam, ContentType.APPLICATION_JSON);
                httpPost.setEntity(entity);
            }

            // 執行http請求
            response = httpClient.execute(httpPost);

            resultString = EntityUtils.toString(response.getEntity(), "utf-8");
        } catch (SocketTimeoutException e) {
            log.error(e.getMessage(), e);
            log.info("響應超時！！！");
        } catch (Exception e) {
            log.error(e.getMessage(), e);
        } finally {
            // 釋放資源
            try {
                httpClient.close();
                if (null != response) {
                    response.close();
                }
            } catch (IOException e) {
                log.error(e.getMessage(), e);
            }
        }
        return resultString;
    }

    /**
     * get請求帶參數
     * @param url 地址
     * @param param   參數
     * @param header 請求頭
     * @return
     */
    public static String doGetHeader(String url, Map<String, String> header , Map<String, String> param) {
        // 創建Httpclient對象
        CloseableHttpClient httpclient = HttpClients.createDefault();
        String resultString = "";
        CloseableHttpResponse response = null;
        try {
            // 創建uri
            URIBuilder builder = new URIBuilder(url);
            if (param != null) {
                for (String key : param.keySet()) {
                    builder.addParameter(key, param.get(key));
                }
            }
            URI uri = builder.build();
            HttpGet httpGet = new HttpGet(uri);
            if (header != null) {
                for (String key : header.keySet()) {
                    httpGet.addHeader(key, header.get(key));
                }
            }
            response = httpclient.execute(httpGet);
            if (response.getStatusLine().getStatusCode() == 200) {
                resultString = EntityUtils.toString(response.getEntity(), "UTF-8");
            }
        } catch (Exception e) {
            e.printStackTrace();
        } finally {
            try {
                if (response != null) {
                    response.close();
                }
                httpclient.close();
            } catch (IOException e) {
                e.printStackTrace();
            }
        }
        return resultString;
    }

// 下面的轉自 https://www.cnblogs.com/htyjlitm/p/10036292.html


package test.huatu.pen.util;

import java.io.IOException;

import org.apache.http.HttpEntity;
import org.apache.http.client.ClientProtocolException;
import org.apache.http.client.config.RequestConfig;
import org.apache.http.client.methods.CloseableHttpResponse;
import org.apache.http.client.methods.HttpDelete;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.client.methods.HttpPut;
import org.apache.http.entity.StringEntity;
import org.apache.http.impl.client.CloseableHttpClient;
import org.apache.http.impl.client.HttpClients;
import org.apache.http.util.EntityUtils;
import org.apache.log4j.BasicConfigurator;
import org.apache.log4j.Logger;

public class HttpRequestUtil {
    
    private static Logger logger  = Logger.getLogger(HttpRequestUtil.class);

    /**
     * 原生字符串發送get請求
     * 
     * @param url
     * @return
     * @throws IOException
     * @throws ClientProtocolException
     */
    public static String doGet(String url, String token) {

        BasicConfigurator.configure();
        CloseableHttpClient httpClient = HttpClients.createDefault();
        HttpGet httpGet = new HttpGet(url);
        httpGet.setHeader("Content-type", "application/json");
        httpGet.setHeader("DataEncoding", "UTF-8");
        httpGet.setHeader("token", token);
        RequestConfig requestConfig = RequestConfig.custom().setConnectTimeout(35000).setConnectionRequestTimeout(35000).setSocketTimeout(60000).build();
        httpGet.setConfig(requestConfig);

        CloseableHttpResponse httpResponse = null;
        try {
            httpResponse = httpClient.execute(httpGet);
            HttpEntity entity = httpResponse.getEntity();
            String result = EntityUtils.toString(entity);
            logger.info("請求成功");
            return result;
        } catch (ClientProtocolException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        } catch (IOException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        } finally {
            if (httpResponse != null) {
                try {
                    httpResponse.close();
                } catch (IOException e) {
                    // TODO Auto-generated catch block
                    e.printStackTrace();
                }
            }
            if (null != httpClient) {
                try {
                    httpClient.close();
                } catch (IOException e) {
                    e.printStackTrace();
                }
            }
        }
        return null;
    }

    /**
     * 原生字符串發送post請求
     * 
     * @param url
     * @param jsonStr
     * @return
     * @throws IOException
     */
    public static String doPost(String url, String token, String jsonStr) {

        CloseableHttpClient httpClient = HttpClients.createDefault();
        HttpPost httpPost = new HttpPost(url);
        RequestConfig requestConfig = RequestConfig.custom().setConnectTimeout(35000).setConnectionRequestTimeout(35000).setSocketTimeout(60000).build();
        httpPost.setConfig(requestConfig);
        httpPost.setHeader("Content-type", "application/json");
        httpPost.setHeader("DataEncoding", "UTF-8");
        httpPost.setHeader("token", token);

        CloseableHttpResponse httpResponse = null;
        try {
            httpPost.setEntity(new StringEntity(jsonStr));
            httpResponse = httpClient.execute(httpPost);
            HttpEntity entity = httpResponse.getEntity();
            String result = EntityUtils.toString(entity);
            return result;
        } catch (ClientProtocolException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        } catch (IOException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        } finally {
            if (httpResponse != null) {
                try {
                    httpResponse.close();
                } catch (IOException e) {
                    // TODO Auto-generated catch block
                    e.printStackTrace();
                }
            }
            if (null != httpClient) {
                try {
                    httpClient.close();
                } catch (IOException e) {
                    e.printStackTrace();
                }
            }
        }
        return null;
    }

    /**
     * 原生字符串發送put請求
     * 
     * @param url
     * @param token
     * @param jsonStr
     * @return
     * @throws ClientProtocolException
     * @throws IOException
     */
    public static String doPut(String url, String token, String jsonStr) {

        CloseableHttpClient httpClient = HttpClients.createDefault();
        HttpPut httpPut = new HttpPut(url);
        RequestConfig requestConfig = RequestConfig.custom().setConnectTimeout(35000).setConnectionRequestTimeout(35000).setSocketTimeout(60000).build();
        httpPut.setConfig(requestConfig);
        httpPut.setHeader("Content-type", "application/json");
        httpPut.setHeader("DataEncoding", "UTF-8");
        httpPut.setHeader("token", token);
        
        CloseableHttpResponse httpResponse = null;
        try {
            httpPut.setEntity(new StringEntity(jsonStr));
            httpResponse = httpClient.execute(httpPut);
            HttpEntity entity = httpResponse.getEntity();
            String result = EntityUtils.toString(entity);
            return result;
        } catch (ClientProtocolException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        } catch (IOException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        } finally {
            if (httpResponse != null) {
                try {
                    httpResponse.close();
                } catch (IOException e) {
                    // TODO Auto-generated catch block
                    e.printStackTrace();
                }
            }
            if (null != httpClient) {
                try {
                    httpClient.close();
                } catch (IOException e) {
                    e.printStackTrace();
                }
            }
        }
        return null;
    }

    /**
     * 發送delete請求
     * 
     * @param url
     * @param token
     * @param jsonStr
     * @return
     * @throws ClientProtocolException
     * @throws IOException
     */
    public static String doDelete(String url, String token, String jsonStr) {

        CloseableHttpClient httpClient = HttpClients.createDefault();
        HttpDelete httpDelete = new HttpDelete(url);
        RequestConfig requestConfig = RequestConfig.custom().setConnectTimeout(35000).setConnectionRequestTimeout(35000).setSocketTimeout(60000).build();
        httpDelete.setConfig(requestConfig);
        httpDelete.setHeader("Content-type", "application/json");
        httpDelete.setHeader("DataEncoding", "UTF-8");
        httpDelete.setHeader("token", token);

        CloseableHttpResponse httpResponse = null;
        try {
            httpResponse = httpClient.execute(httpDelete);
            HttpEntity entity = httpResponse.getEntity();
            String result = EntityUtils.toString(entity);
            return result;
        } catch (ClientProtocolException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        } catch (IOException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        } finally {
            if (httpResponse != null) {
                try {
                    httpResponse.close();
                } catch (IOException e) {
                    // TODO Auto-generated catch block
                    e.printStackTrace();
                }
            }
            if (null != httpClient) {
                try {
                    httpClient.close();
                } catch (IOException e) {
                    e.printStackTrace();
                }
            }
        }
        return null;
    }

/**
 * 忽略ssl證書驗證
 * @return
 */
public static CloseableHttpClient createIgnoreSSLHttpClient() {
    try {
        SSLContext sslContext = new SSLContextBuilder().loadTrustMaterial(null, new TrustStrategy() {
            @Override
            public boolean isTrusted(X509Certificate[] chain,
                                     String authType) throws CertificateException {
                return true;
            }
        }).build();
        SSLConnectionSocketFactory sslConnectionSocketFactory = new SSLConnectionSocketFactory(sslContext, NoopHostnameVerifier.INSTANCE);
        return HttpClients.custom().setSSLSocketFactory(sslConnectionSocketFactory).build();
    } catch (Exception e) {
        e.printStackTrace();
    }
    return null;
}

/**
 * 創建忽略ssl證書驗證的Httpclient對象
 * POST請求（帶json參數）
 * @param url 請求地址
 * @param socketTimeout 響應超時時間，根據業務而定，單位毫秒;如果訪問一個接口,多少時間內無法返回數據,就直接放棄此次調用
 * @param jsonParam    json參數
 * @return
 */
public static String doHeaderPostJson(String url, int socketTimeout, Map<String, String> headerMap, String jsonParam) {
    // 創建忽略ssl證書驗證的Httpclient對象
    CloseableHttpClient httpClient = createIgnoreSSLHttpClient();
    CloseableHttpResponse response = null;
    String resultString = "";
    try {
        // 創建Http Post請求
        HttpPost httpPost = new HttpPost(url);
        // 設置請求超時
        RequestConfig requestConfig = RequestConfig.custom()
                // 設置連接超時時間,單位毫秒。
                .setConnectTimeout(50000)
                // 從連接池獲取到連接的超時,單位毫秒。
                .setConnectionRequestTimeout(10000)
                // 請求獲取數據的超時時間,單位毫秒; 如果訪問一個接口,多少時間內無法返回數據,就直接放棄此次調用。
                .setSocketTimeout(socketTimeout).build();
        httpPost.setConfig(requestConfig);

        //創建頭信息
        headerMap.entrySet().forEach(entry->httpPost.addHeader(entry.getKey(), entry.getValue()));
        // 創建請求內容
        StringEntity entity = new StringEntity(jsonParam, ContentType.APPLICATION_JSON);
        httpPost.setEntity(entity);

        // 執行http請求
        response = httpClient.execute(httpPost);

        resultString = EntityUtils.toString(response.getEntity(), "utf-8");
    } catch (SocketTimeoutException e) {
        log.error(e.getMessage(), e);
        log.info("響應超時！！！");
    } catch (Exception e) {
        log.error(e.getMessage(), e);
    } finally {
        // 釋放資源
        try {
            httpClient.close();
            if (null != response) {
                response.close();
            }
        } catch (IOException e) {
            log.error(e.getMessage(), e);
        }
    }
    return resultString;
}

}