JAVA HttpClient工厂方法问题

我照网上教程写了一个HttpClient工厂 GET数据是正常可以使用的(不需要设置参数) 但是传入新数据无法使用(需要设置参数)

我的工厂是这样的 execute后面url是请求地址 setParams 后面的Params 是需要传入的参数

传入新数据的实现方法是

package com.zr0701.Http;

import com.google.gson.Gson;
import org.apache.http.HttpEntity;
import org.apache.http.client.config.RequestConfig;
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.impl.client.CloseableHttpClient;
import org.apache.http.impl.client.HttpClients;
import org.apache.http.util.EntityUtils;
import java.io.IOException;


public class HttpClientPostNewData extends AbstractHttpClient{
    private String body;

    @Override
    public String execute(String url) {
        CloseableHttpClient httpClient = null;
        HttpPost httpPost = null;
        try {
            httpClient = HttpClients.createDefault();
            //请求配置
            RequestConfig requestConfig = RequestConfig.custom().setSocketTimeout(20000)
                    .setConnectTimeout(20000)
                    .build();
            //创建HttpPost实例
            httpPost = new HttpPost(url);
            //对HttpPost指定配置
            httpPost.setConfig(requestConfig);
            //传入的参数,传入的参数类型为"APPLICATION_JSON"
            StringEntity requestEntity = new StringEntity(body, ContentType.APPLICATION_JSON);
/*            UrlEncodedFormEntity requestEntity = new UrlEncodedFormEntity(ps);*/
            httpPost.setEntity(requestEntity);
            //启动httpPost请求
            CloseableHttpResponse response = httpClient.execute(httpPost);
            HttpEntity entity = response.getEntity();
            String reponseInformation = EntityUtils.toString(entity,"UTF-8");
            return reponseInformation;
        } catch (IOException e) {
            e.printStackTrace();
        }finally {
            try {
                if (httpPost != null) {
                    httpPost.releaseConnection();
                }

                if (httpClient != null ) {
                    httpClient.close();
                }
            }catch (Exception e) {
                e.printStackTrace();
            }

        }

        return null;
    }

    @Override
    public AbstractHttpClient setParams(Object params) {
        Gson gson = new Gson();
        body = gson.toJson(params);
        return this;

    }
}

我在 外部是这样调用工厂的

运行的时候发现没有返回值

然后断点测试发现这段代码并不能跳入 我的Http工厂

我的GET方法是可以正常跳入的 并且可以获得数据

什么问题 是不是反射写的不对

传入的是“post”, 可是你工厂里面明明是“postNewData”啊

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