import com.alibaba.fastjson.JSONObject;
import org.apache.http.HttpEntity;
import org.apache.http.HttpResponse;
import org.apache.http.HttpStatus;
import org.apache.http.client.methods.CloseableHttpResponse;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.entity.ContentType;
import org.apache.http.entity.StringEntity;
import org.apache.http.entity.mime.HttpMultipartMode;
import org.apache.http.entity.mime.MultipartEntityBuilder;
import org.apache.http.entity.mime.content.StringBody;
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.util.EntityUtils;

import java.io.IOException;
import java.nio.charset.Charset;

public class HttpClientUtil {
    private static final CloseableHttpClient httpclient = HttpClients.createDefault();

    /**
     * 发送 multipart/form-data 格式参数
     * @param url
     * @param issueDate
     * @return
     */
    public static String httpClientPost(String url,String issueDate) {
        String res = null;
        CloseableHttpResponse response = null;
//        HttpPost httpPost = new HttpPost("http://11.65.178.35:12346/homeScreen/processingTime/2024/getProcessingTimeData");
        HttpPost httpPost = new HttpPost(url);
        String boundary ="--------------4585696313564699";
        httpPost.setHeader("Content-Type","multipart/form-data; boundary="+boundary);

        //创建 MultipartEntityBuilder,以此来构建我们的参数
        MultipartEntityBuilder EntityBuilder = MultipartEntityBuilder.create();
        //设置字符编码，防止乱码
        ContentType contentType=ContentType.create("text/plain", Charset.forName("UTF-8"));
        //遍历json参数
//        for(String str:json.keySet()){
//            EntityBuilder.addPart(str, new StringBody(json.get(str).toString(),contentType));
//        }
//        EntityBuilder.addPart("file",new FileBody(file));
        if(NonUtil.isNotNon(issueDate)){
            EntityBuilder.addPart("issueDate",new StringBody(issueDate,contentType));
        }

        //模拟浏览器
        EntityBuilder.setMode(HttpMultipartMode.BROWSER_COMPATIBLE);
        //boundary
        EntityBuilder.setBoundary(boundary);

        httpPost.setEntity(EntityBuilder.build());

        try {
            response = httpclient.execute(httpPost);
            HttpEntity entity2 = response.getEntity();
            res = EntityUtils.toString(entity2, "UTF-8");
        } catch (IOException e) {
            e.printStackTrace();
            return "错误error";
        }


        return res;
    }

    /**
     * 发送 JSON 格式参数
     * @param url
     * @param issueDate
     * @return
     */
    public static String httpClientPostJson(String url, JSONObject json) {
        HttpPost post = new HttpPost(url);
        try {
            StringEntity s = new StringEntity(json.toString());
            s.setContentEncoding("UTF-8");
            s.setContentType("application/json");//发送json数据需要设置contentType
            post.setEntity(s);
            HttpResponse res = httpclient.execute(post);

            String ret = "";
            if(res.getStatusLine().getStatusCode() == HttpStatus.SC_OK){
                HttpEntity entity = res.getEntity();
                ret = EntityUtils.toString(res.getEntity());// 返回json格式：
            }
            return ret;

        } catch (Exception e) {
            throw new RuntimeException(e);
        }
    }

}