RestTemplate 支持GET请求在body里面传递json

1.定义HttpGetRequestWithEntity实现HttpEntityEnclosingRequestBase抽象类，以支持GET请求携带body数据

没办法，第三方提供的接口不按照标准套路来，只能重写RestTemplate的
定义HttpGetRequestWithEntity实现HttpEntityEnclosingRequestBase抽象类，以支持GET请求携带body数据。

package com.sugon.cloud.utils;

import org.apache.http.client.methods.HttpEntityEnclosingRequestBase;
import org.apache.http.client.methods.HttpUriRequest;
import org.springframework.http.HttpMethod;
import org.springframework.http.client.HttpComponentsClientHttpRequestFactory;

import java.net.URI;

/**
 * @Auther: liuysh
 * @Date: 2021/7/24 10:18
 * @Description:
 */
public class HttpComponentsClientRestfulHttpRequestFactory extends HttpComponentsClientHttpRequestFactory {
    @Override
    protected HttpUriRequest createHttpUriRequest(HttpMethod httpMethod, URI uri) {

        if (httpMethod == HttpMethod.GET) {
            return new HttpGetRequestWithEntity(uri);
        }
        return super.createHttpUriRequest(httpMethod, uri);
    }

    /**
     * 定义HttpGetRequestWithEntity实现HttpEntityEnclosingRequestBase抽象类，以支持GET请求携带body数据
     */

    private static final class HttpGetRequestWithEntity extends HttpEntityEnclosingRequestBase {
        public HttpGetRequestWithEntity(final URI uri) {
            super.setURI(uri);
        }

        @Override
        public String getMethod() {
            return HttpMethod.GET.name();

        }
    }
}

使用样例

public class RestTemplateUtils {
    public static HttpEntity<String> getHeader(String param){
        HttpHeaders headers = new HttpHeaders();
        headers.add("X-Auth-Token", getHeaderAuthorization() );
       // MediaType type = MediaType.parseMediaType("application/json; charset=UTF-8");
        headers.setContentType(MediaType.APPLICATION_JSON);
        headers.add("Accept", MediaType.APPLICATION_JSON.toString());
        return new HttpEntity<>(param, headers);
    }
      public static void main(String[] args) {
            RestTemplate restTemplate=new RestTemplate();
            restTemplate.setRequestFactory(new HttpComponentsClientRestfulHttpRequestFactory());
    
            String url="http://get.com";
            String param="{\"name\": \"liuyunshengsir\"}";
            ResponseEntity<JSONObject> responseEntity = restTemplate.exchange(url, HttpMethod.GET, getHeader(param), JSONObject.class);
    
            System.out.println("ok !!!");
        }
 }