http工具

也没什么说的， 走你

import org.apache.commons.lang3.StringUtils;
import org.apache.http.HttpResponse;
import org.apache.http.NameValuePair;
import org.apache.http.client.HttpClient;
import org.apache.http.client.entity.UrlEncodedFormEntity;
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.ByteArrayEntity;
import org.apache.http.entity.StringEntity;
import org.apache.http.impl.client.HttpClientBuilder;
import org.apache.http.message.BasicNameValuePair;
import org.springframework.stereotype.Component;

import java.io.UnsupportedEncodingException;
import java.net.URLEncoder;
import java.util.ArrayList;
import java.util.List;
import java.util.Map;

import static com.kmind.chuqu.util.https.SSLClient.sslClient;

/**
 * @Description
 * @CreateAt 2018/12/6
 * @ModifyAt
 * @ModifyBy
 */
@Component
public class HttpsUtil {
    private static HttpClient sslClient = sslClient();
    private static HttpClient httpClient = HttpClientBuilder.create().build();

    public static HttpResponse doGet(String host, String path,
                                     Map headers,
                                     Map querys)
            throws Exception {
        HttpClient devHttpClient = wrapClient(host,path);
        HttpGet request = new HttpGet(buildUrl(host, path, querys));
        for (Map.Entry e : headers.entrySet()) {
            request.addHeader(e.getKey(), e.getValue());
        }
        return devHttpClient.execute(request);
    }

    /**
     * post form
     * @param host
     * @param path
     * @param headers
     * @param querys
     * @param bodys
     * @return
     * @throws Exception
     */
    public static HttpResponse doPost(String host, String path,
                                      Map headers,
                                      Map querys,
                                      Map bodys)
            throws Exception {
        HttpClient devHttpClient = wrapClient(host,path);
        HttpPost request = new HttpPost(buildUrl(host, path, querys));
        for (Map.Entry e : headers.entrySet()) {
            request.addHeader(e.getKey(), e.getValue());
        }
        if (bodys != null) {
            List nameValuePairList = new ArrayList();

            for (String key : bodys.keySet()) {
                nameValuePairList.add(new BasicNameValuePair(key, bodys.get(key)));
            }
            UrlEncodedFormEntity formEntity = new UrlEncodedFormEntity(nameValuePairList, "utf-8");
            formEntity.setContentType("application/x-www-form-urlencoded; charset=UTF-8");
            request.setEntity(formEntity);
        }
        return devHttpClient.execute(request);
    }

    /**
     * Post String
     * @param host
     * @param path
     * @param headers
     * @param querys
     * @param body
     * @return
     * @throws Exception
     */
    public static HttpResponse doPost(String host, String path,
                                      Map headers,
                                      Map querys,
                                      String body)
            throws Exception {
        HttpClient devHttpClient = wrapClient(host,path);
        HttpPost request = new HttpPost(buildUrl(host, path, querys));
        for (Map.Entry e : headers.entrySet()) {
            request.addHeader(e.getKey(), e.getValue());
        }
        if (StringUtils.isNotBlank(body)) {
            request.setEntity(new StringEntity(body, "utf-8"));
        }
        return devHttpClient.execute(request);
    }

    /**
     * Post stream
     * @param host
     * @param path
     * @param headers
     * @param body
     * @return
     * @throws Exception
     */
    public static HttpResponse doPost(String host, String path,
                                      Map headers,
                                      byte[] body)
            throws Exception {
        HttpClient devHttpClient = wrapClient(host,path);
        HttpPost request = new HttpPost(buildUrl(host, path, null));
        for (Map.Entry e : headers.entrySet()) {
            request.addHeader(e.getKey(), e.getValue());
        }
        if (body != null) {
            request.setEntity(new ByteArrayEntity(body));
        }
        return devHttpClient.execute(request);
    }

    /**
     * Put String
     * @param host
     * @param path
     * @param headers
     * @param body
     * @return
     * @throws Exception
     */
    public static HttpResponse doPut(String host, String path,
                                     Map headers,
                                     String body)
            throws Exception {
        HttpClient devHttpClient = wrapClient(host,path);
        HttpPut request = new HttpPut(buildUrl(host, path, null));
        for (Map.Entry e : headers.entrySet()) {
            request.addHeader(e.getKey(), e.getValue());
        }
        if (StringUtils.isNotBlank(body)) {
            request.setEntity(new StringEntity(body, "utf-8"));
        }
        return devHttpClient.execute(request);
    }

    /**
     * Put stream
     * @param host
     * @param path
     * @param headers
     * @param body
     * @return
     * @throws Exception
     */
    public static HttpResponse doPut(String host, String path,
                                     Map headers,
                                     byte[] body)
            throws Exception {
        HttpClient devHttpClient = wrapClient(host,path);
        HttpPut request = new HttpPut(buildUrl(host, path, null));
        for (Map.Entry e : headers.entrySet()) {
            request.addHeader(e.getKey(), e.getValue());
        }
        if (body != null) {
            request.setEntity(new ByteArrayEntity(body));
        }
        return devHttpClient.execute(request);
    }

    /**
     * Delet
     * @param host
     * @param path
     * @param headers
     * @param querys
     * @return
     * @throws Exception
     */
    public static HttpResponse doDelete(String host, String path,
                                        Map headers,
                                        Map querys)
            throws Exception {
        HttpClient devHttpClient = wrapClient(host,path);
        HttpDelete request = new HttpDelete(buildUrl(host, path, querys));
        for (Map.Entry e : headers.entrySet()) {
            request.addHeader(e.getKey(), e.getValue());
        }
        return devHttpClient.execute(request);
    }

    /**
     * 构建请求的 url
     * @param host
     * @param path
     * @param querys
     * @return
     * @throws UnsupportedEncodingException
     */
    private static String buildUrl(String host, String path, Map querys) throws UnsupportedEncodingException {
        StringBuilder sbUrl = new StringBuilder();
        if (!StringUtils.isBlank(host)) {
            sbUrl.append(host);
        }
        if (!StringUtils.isBlank(path)) {
            sbUrl.append(path);
        }
        if (null != querys) {
            StringBuilder sbQuery = new StringBuilder();
            for (Map.Entry query : querys.entrySet()) {
                if (0 < sbQuery.length()) {
                    sbQuery.append("&");
                }
                if (StringUtils.isBlank(query.getKey()) && !StringUtils.isBlank(query.getValue())) {
                    sbQuery.append(query.getValue());
                }
                if (!StringUtils.isBlank(query.getKey())) {
                    sbQuery.append(query.getKey());
                    if (!StringUtils.isBlank(query.getValue())) {
                        sbQuery.append("=");
                        sbQuery.append(URLEncoder.encode(query.getValue(), "utf-8"));
                    }
                }
            }
            if (0 < sbQuery.length()) {
                sbUrl.append("?").append(sbQuery);
            }
        }
        return sbUrl.toString();
    }

    /**
     * 获取 HttpClient
     * @param host
     * @param path
     * @return
     */
    private static HttpClient wrapClient(String host,String path) {
        if (host != null && host.startsWith("https://")) {
            return sslClient;
        }else if (StringUtils.isBlank(host) && path != null && path.startsWith("https://")) {
            return sslClient;
        }
        return httpClient;
    }
}