问题描述：需要访问外部delete修饰的接口。hutool工具类的HttpUtils修饰的方法中只有get 和post 请求，需要自己重写

如果使用post 和get 则会报405问题

package com.zhada.cloud.transit.infrastructure.utils;

import com.alibaba.fastjson.JSON;
import org.apache.http.HttpEntity;
import org.apache.http.client.ResponseHandler;
import org.apache.http.client.methods.CloseableHttpResponse;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.entity.StringEntity;
import org.apache.http.impl.client.BasicResponseHandler;
import org.apache.http.impl.client.CloseableHttpClient;
import org.apache.http.impl.client.HttpClients;
import org.apache.http.util.EntityUtils;

import java.io.IOException;
import java.util.Map;

public class HttpUtils {
    /**
     * HttpClient发送json字符串post请求
     *
     * @param
     * @param json
     * @return
     */
    public static HttpResult sendPost(String url, Map<String, Object> headers, String json) {

        HttpResult result = null;
        CloseableHttpClient httpClient = HttpClients.createDefault();
        ResponseHandler<String> responseHandler = new BasicResponseHandler();
        try {
            //第一步：创建HttpClient对象
            httpClient = HttpClients.createDefault();
            //第二步：创建httpPost对象
            HttpPost httpPost = new HttpPost(url);
            //第三步：给httpPost设置JSON格式的参数
            StringEntity requestEntity = new StringEntity(json, "utf-8");
            requestEntity.setContentEncoding("UTF-8");
            if (headers !=null)
            {
                for (Map.Entry<String, Object> entry : headers.entrySet()) {
                    httpPost.setHeader(entry.getKey(), String.valueOf(entry.getValue()));
                }
            }

            httpPost.setEntity(requestEntity);
            //第四步：发送HttpPost请求，获取返回值
            String msg = httpClient.execute(httpPost, responseHandler);
            result = JSON.parseObject(msg,HttpResult.class);
        } catch (Exception e) {
            e.printStackTrace();
        } finally {
            try {
                httpClient.close();
            } catch (IOException e) {
                e.printStackTrace();
            }
        }
        //第五步：处理返回值
        return result ;
    }

    public static String doDelete(String data, String url) throws IOException {
        CloseableHttpClient client = null;
        HttpDeleteWithBody httpDelete = null;
        String result = null;
        try {
            client = HttpClients.createDefault();
            httpDelete = new HttpDeleteWithBody(url);

            httpDelete.addHeader("Content-type","application/json; charset=utf-8");
            httpDelete.setHeader("Accept", "application/json; charset=utf-8");
            httpDelete.setEntity(new StringEntity(data));

            CloseableHttpResponse response = client.execute(httpDelete);
            HttpEntity entity = response.getEntity();
            result = EntityUtils.toString(entity);

            if (200 == response.getStatusLine().getStatusCode()) {

            }
        } catch (Exception e) {
        } finally {
            client.close();
        }
        return result;

    }


    public static  class HttpResult
    {
        private  String flag;
        private  String code;
        private  String msg;
        private String lid;
        private String datas;

        public String getFlag() {
            return flag;
        }

        public void setFlag(String flag) {
            this.flag = flag;
        }

        public String getCode() {
            return code;
        }

        public void setCode(String code) {
            this.code = code;
        }

        public String getMsg() {
            return msg;
        }

        public void setMsg(String msg) {
            this.msg = msg;
        }

        public String getLid() {
            return lid;
        }

        public void setLid(String lid) {
            this.lid = lid;
        }

        public String getDatas() {
            return datas;
        }

        public void setDatas(String datas) {
            this.datas = datas;
        }
    }
}

package com.zhada.cloud.transit.infrastructure.utils;

import org.apache.http.client.methods.HttpEntityEnclosingRequestBase;

import java.net.URI;

public class HttpDeleteWithBody extends HttpEntityEnclosingRequestBase {
    public static final String METHOD_NAME = "DELETE";

    /**
     * 获取方法（必须重载）
     *
     * @return
     */
    @Override
    public String getMethod() {
        return METHOD_NAME;
    }

    public HttpDeleteWithBody(final String uri) {
        super();
        setURI(URI.create(uri));
    }

    public HttpDeleteWithBody(final URI uri) {
        super();
        setURI(uri);
    }

    public HttpDeleteWithBody() {
        super();
    }

}