java 实现https请求

package cn.ljs.util.InterfaceDemo;

import org.apache.commons.fileupload.FileItem;
import org.apache.commons.fileupload.disk.DiskFileItem;
import org.apache.commons.io.IOUtils;
import org.apache.http.HttpEntity;
import org.apache.http.HttpResponse;
import org.apache.http.client.config.RequestConfig;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.conn.ClientConnectionManager;
import org.apache.http.conn.scheme.Scheme;
import org.apache.http.conn.scheme.SchemeRegistry;
import org.apache.http.conn.ssl.SSLSocketFactory;
import org.apache.http.entity.ContentType;
import org.apache.http.entity.mime.HttpMultipartMode;
import org.apache.http.entity.mime.MultipartEntityBuilder;
import org.apache.http.impl.client.CloseableHttpClient;
import org.apache.http.impl.client.DefaultHttpClient;
import org.apache.http.impl.client.HttpClients;
import org.apache.http.protocol.HTTP;
import org.apache.http.util.EntityUtils;
import org.springframework.web.multipart.MultipartFile;
import org.springframework.web.multipart.commons.CommonsMultipartFile;

import javax.net.ssl.SSLContext;
import javax.net.ssl.TrustManager;
import javax.net.ssl.X509TrustManager;
import java.io.*;
import java.nio.file.Files;
import java.security.cert.CertificateException;
import java.security.cert.X509Certificate;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

/*单一*/
public class HttpUtilDYTest extends DefaultHttpClient {



    public static void main(String[] args)throws Exception{
        Map<String, Object> data = new HashMap<>();
        /*data中请求需要的参数*/
        data.put("account", "***");//账号
        data.put("password", "***");//密码


        //导入需要上传的文件 
        File file = new File("C:\Users\Thinkpa\Desktop\161616.jpg");
        FileItem fileItem = dataFormat(file);
        MultipartFile multipartFile = new CommonsMultipartFile(fileItem);
        List<MultipartFile> list = new ArrayList();
        list.add(multipartFile);
        Map<String, String> resultDataMap = httpPostRequest("https://xxx/findTender_companyname",list, "files", data, -1);
        System.out.println("返回状态：========》"+resultDataMap.get("scode") + "==>data"+resultDataMap.get("data"));

    }

    /** https 请求
     * 使用HttpClient4.5 post提交multipart/form-data数据实现多文件上传c
     * @param url 请求地址
     * @param multipartFiles post提交的文件列表
     * @param fileParName fileKey
     * @param params 附带的文本参数
     * @param timeout 请求超时时间(毫秒)
     * @return
     * @author lingtong
     * @date 2019-9-23
     * */
    public static Map<String, String> httpPostRequest(String url, List<MultipartFile> multipartFiles, String fileParName,
                                                       Map<String, Object> params, int timeout) throws Exception{
        Map<String, String> resultMap = new HashMap<String, String>();
        CloseableHttpClient httpClient = new HttpUtilDYTest();
        String result = "";
        try {
            HttpPost httpPost = new HttpPost(url);
            MultipartEntityBuilder builder = MultipartEntityBuilder.create();
            builder.setCharset(java.nio.charset.Charset.forName("UTF-8"));
            builder.setMode(HttpMultipartMode.BROWSER_COMPATIBLE);
            String fileName = null;
            MultipartFile multipartFile = null;
            for (int i = 0; i < multipartFiles.size(); i++) {
                multipartFile = multipartFiles.get(i);
                fileName = multipartFile.getOriginalFilename();
                builder.addBinaryBody(fileParName, multipartFile.getInputStream(), ContentType.MULTIPART_FORM_DATA, fileName);// 文件流
            }
            //决中文乱码
            ContentType contentType = ContentType.create(HTTP.PLAIN_TEXT_TYPE, HTTP.UTF_8);
            for (Map.Entry<String, Object> entry : params.entrySet()) {
                if(entry.getValue() == null)
                    continue;
                // 类似浏览器表单提交，对应input的name和value
                builder.addTextBody(entry.getKey(), entry.getValue().toString(), contentType);
            }
            HttpEntity entity = builder.build();
            httpPost.setEntity(entity);
            HttpResponse response = httpClient.execute(httpPost);// 执行提交

            // 设置连接超时时间
            RequestConfig requestConfig = RequestConfig.custom().setConnectTimeout(timeout)
                    .setConnectionRequestTimeout(timeout).setSocketTimeout(timeout).build();
            httpPost.setConfig(requestConfig);

            HttpEntity responseEntity = response.getEntity();
            resultMap.put("scode", String.valueOf(response.getStatusLine().getStatusCode()));
            resultMap.put("data", "");
            if (responseEntity != null) {
                // 将响应内容转换为字符串
                result = EntityUtils.toString(responseEntity, java.nio.charset.Charset.forName("UTF-8"));
                resultMap.put("data", result);
            }
        } catch (Exception e) {
            resultMap.put("scode", "error");
            resultMap.put("data", "HTTP请求出现异常: " + e.getMessage());

            Writer w = new StringWriter();
            e.printStackTrace(new PrintWriter(w));
            System.out.println("HTTP请求出现异常: " + w.toString());
        } finally {
            try {
                httpClient.close();
            } catch (IOException e) {
                e.printStackTrace();
            }
        }
        return resultMap;
    }


    public HttpUtilDYTest() throws Exception{
        super();
        SSLContext ctx = SSLContext.getInstance("TLS");
        X509TrustManager 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 null;
            }
        };
        ctx.init(null, new TrustManager[]{tm}, null);
        SSLSocketFactory ssf = new SSLSocketFactory(ctx,SSLSocketFactory.ALLOW_ALL_HOSTNAME_VERIFIER);
        ClientConnectionManager ccm = this.getConnectionManager();
        SchemeRegistry sr = ccm.getSchemeRegistry();
        sr.register(new Scheme("https", 443, ssf));
    }
    public static FileItem dataFormat(File file)throws Exception{
        FileItem fileItem = new DiskFileItem("mm", Files.probeContentType(file.toPath()), false, file.getName(), (int) file.length(), file.getParentFile());
        try {
            InputStream input = new FileInputStream(file);
            OutputStream os = fileItem.getOutputStream();
            IOUtils.copy(input, os);
            //Or faster..
            IOUtils.copy(new FileInputStream(file), fileItem.getOutputStream());
        } catch (IOException ex) {
            //do something.
        }
        return  fileItem;
    }

}