java发送get请求加body参数

原因：和别人对接，别人的接口是get请求参数从body中传入 （捶地大骂）

1. 创建HttpGetWithEntity

import org.apache.http.client.methods.HttpEntityEnclosingRequestBase;
import java.net.URI;
import java.util.Date;

/**
 * @author wdk
 * @version 1.0.0
 * @ClassName HttpGetWithEntity
 * @Description TODO 定义一个带body的GET请求 继承 HttpEntityEnclosingRequestBase
 * @createTime 2020.11.18 13:51
 * @name
 */
public class HttpGetWithEntity extends HttpEntityEnclosingRequestBase {
    private final static String METHOD_NAME = "GET";

    @Override
    public String getMethod() {
        return METHOD_NAME;
    }
    public HttpGetWithEntity() {
        super();
    }
    public HttpGetWithEntity(final URI uri) {
        super();
        setURI(uri);
    }
    public HttpGetWithEntity(final String uri) {
        super();
        setURI(URI.create(uri));
        addHeader("Authorization", "Bearer "+token);
    }
}

2.封装get请求

   /**
     * 发送get请求，参数为json
     * @param url
     * @param params 参数
     * @return
     * @throws Exception
     */
    public static JSONObject sendJsonByGetReq(String url,Map<String,Object> params){
        try {
            String encoding = "UTF-8";
            String param = JSONArray.toJSON(params).toString();
            String body = "";
            //创建httpclient对象
            HttpGetWithEntity httpGetWithEntity = new HttpGetWithEntity(url);
            HttpEntity httpEntity = new StringEntity(param, ContentType.APPLICATION_JSON);
            httpGetWithEntity.setEntity(httpEntity);
            //执行请求操作，并拿到结果（同步阻塞）
            CloseableHttpClient client = HttpClientBuilder.create().build();
            CloseableHttpResponse response = client.execute(httpGetWithEntity);
            //获取结果实体
            HttpEntity entity = response.getEntity();
            if (entity != null) {
                //按指定编码转换结果实体为String类型
                body = EntityUtils.toString(entity, encoding);
            }
            //释放链接
            response.close();
            return JSONObject.parseObject(body);
        }catch (Exception e){
            e.printStackTrace();
        }
        return null;
    }