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这里举例说一下post请求的封装，get请求类似

    @Test
	public void f1(){
		try {
			String url = "http://XXXXX:XXXX/futureloan/mvc/api/member/login";
			HttpPost post = new HttpPost(url);
			List<NameValuePair> parameters = new ArrayList<NameValuePair>();
			parameters.add(new BasicNameValuePair("mobilephone", 13455555555));
			parameters.add(new BasicNameValuePair("pwd", e10adc3949ba59abbe56e057f20f883e));
			parameters.add(new BasicNameValuePair("type", 1));

			// entity为原生form表单格式，可以从请求中Content-Type:
			// application/x-www-form-urlencoded中获得
			UrlEncodedFormEntity entity = new UrlEncodedFormEntity(parameters);
			post.setEntity(entity);

			// 创建一个客户端
			CloseableHttpClient httpClient = HttpClients.createDefault();
                       //发送请求包
			CloseableHttpResponse response = httpClient.execute(post);                        
                       //获得响应体
			HttpEntity respEntity = response.getEntity();
			String respResult = EntityUtils.toString(respEntity);
			System.out.println(respResult);
		} catch (Exception e) {
			e.printStackTrace();
		}

	}

封装的思路，抽取出不变的部分，提取出参数（需要变化的：比如url地址，请求参数）--此处补充说明：从上面可看出请求参数存放在List parameters 中，该依赖于httpClient，所以此处可换成HashMap，更具有通用性

private static String post(String url, Map<String, String> paramsMap) {
		String respResult = "";
		try {
			// 生成post请求
			HttpPost post = new HttpPost(url);
			if (paramsMap != null) {
				// 设置post请求参数--请求体中间
				// 创建一个容器，将保存在HashMap中的参数保存到这个容器中
				List<NameValuePair> paramsList = new ArrayList<>();
				Set<String> keySet = paramsMap.keySet();
				for (String key : keySet) {
					String value = paramsMap.get(key);
					paramsList.add(new BasicNameValuePair(key, value));
				}
				// 创建一个原生form表单的请求体
				UrlEncodedFormEntity entity = new UrlEncodedFormEntity(paramsList);
				// 设置post请求体
				post.setEntity(entity);
			}
			// 创建一个HTTP发送客户端
			CloseableHttpClient httpClient = HttpClients.createDefault();
			// 发数据包
			CloseableHttpResponse response = httpClient.execute(post);
			// 获取响应体中的内容
			HttpEntity respEntity = response.getEntity();
			respResult = EntityUtils.toString(respEntity);
			return respResult;

		} catch (Exception e) {
			e.printStackTrace();
		}
		return respResult;
	}

调用方法

@Test
	public void post() {
		// 1.请求地址
		String url = "http://XXXXX:XXXX/lmcanon_web_auto/mvc/member/api/member/login";
		// 3.设置post请求参数--请求体中间
		// 创建一个容器，保存每个参数
		HashMap<String,String> paramsMap=new HashMap<>();
		paramsMap.put("mobilephone", 13555555555);
		paramsMap.put("pwd", e10adc3949ba59abbe56e057f20f883e);
		paramsMap.put("type", 1);
                //返回响应体
		String respResult=HttpUtils.post(url, paramsMap);
		System.out.println(respResult);
	}

*********************************************POST******************************************************

public static String doPost(String url,Map<String, String> params) {
		HttpPost httpPost = new HttpPost(url);
//		取出map中所有的参数名
		Set<String> keys = params.keySet();
		String result ="";
		List<BasicNameValuePair> parameters = new ArrayList<BasicNameValuePair>();
//		通过循环将参数保存到lst集合
		for(String name:keys) {
			String value = params.get(name);
			parameters.add(new BasicNameValuePair(name, value));
		}
		try {
			httpPost.setEntity(new UrlEncodedFormEntity(parameters,"UTF-8"));
//			准备请求头数据
			HttpClient httpClient = HttpClients.createDefault();			//创建客户端
			HttpResponse httpResponse = httpClient.execute(httpPost);	//发送请求
//			发起请求，获取接口响应信息
			result = EntityUtils.toString(httpResponse.getEntity());
		} catch (Exception e) {
			e.printStackTrace();
		}
		return result;
	}
	

/**以get的方法处理接口请求调用
	 * @param url
	 * @param params
	 * @return
	 */
	public static String doGet(String url,Map<String, String> params) {
		List<BasicNameValuePair> parameters = new ArrayList<BasicNameValuePair>();
//		取出所有参数
		Set<String> keys = params.keySet();
//		通过循环将参数保存到lst集合
		for(String name:keys) {
			String value = params.get(name);
			parameters.add(new BasicNameValuePair(name, value));
		}
		String parameter = URLEncodedUtils.format(parameters, "UTF-8");
		url+="?"+ parameter;
		HttpGet httpGet = new HttpGet(url);
		HttpClient httpClient = HttpClients.createDefault();
		String result ="";
		try {
			HttpResponse httpResponse = httpClient.execute(httpGet);
			result =EntityUtils.toString(httpResponse.getEntity());
		} catch (Exception e) {
			e.printStackTrace();
		}
		return result;
		}

😁 都是Happy大佬教出来的好学生