http请求工具

patient-co-customization/patient-co-modern-medicine/src/main/java/com/yihu/mm/util/HttpClientUtil.java

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package com.yihu.mm.util;
import org.apache.http.HttpEntity;
import org.apache.http.NameValuePair;
import org.apache.http.ParseException;
import org.apache.http.client.ClientProtocolException;
import org.apache.http.client.entity.UrlEncodedFormEntity;
import org.apache.http.client.methods.CloseableHttpResponse;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.impl.client.CloseableHttpClient;
import org.apache.http.impl.client.HttpClients;
import org.apache.http.util.EntityUtils;
import org.json.JSONObject;
import org.springframework.http.HttpHeaders;
import org.springframework.http.MediaType;
import org.springframework.web.client.RestTemplate;
import java.io.IOException;
import java.io.UnsupportedEncodingException;
import java.util.List;
public class HttpClientUtil {
	/**
	 * 发送post请求
	 * @param url 请求地址
	 * @param params 请求参数
	 * @param chatSet 编码格式
	 * @return
	 */
	public static String post(String url, List<NameValuePair> params, String chatSet) {
		// 创建默认的httpClient实例.
		CloseableHttpClient httpclient = HttpClients.createDefault();
		// 创建httppost
		HttpPost httppost = new HttpPost(url);
		UrlEncodedFormEntity uefEntity;
		try {
			uefEntity = new UrlEncodedFormEntity(params, chatSet);
			httppost.setEntity(uefEntity);
			CloseableHttpResponse response = httpclient.execute(httppost);
			try {
				HttpEntity entity = response.getEntity();
				if (entity != null) {
					return EntityUtils.toString(entity, chatSet);
				}
			} finally {
				response.close();
			}
		} catch (ClientProtocolException e) {
			e.printStackTrace();
		} catch (UnsupportedEncodingException e1) {
			e1.printStackTrace();
		} catch (IOException e) {
			e.printStackTrace();
		} finally {
			// 关闭连接,释放资源
			try {
				httpclient.close();
			} catch (IOException e) {
				e.printStackTrace();
			}
		}
		return null;
	}
	/**
	 * 发送get请求
	 * @param url 请求地址
	 * @param chatSet 编码格式
	 * @return
	 */
	public static String get(String url, String chatSet) {
		CloseableHttpClient httpclient = HttpClients.createDefault();
		try {
			// 创建httpget.
			HttpGet httpget = new HttpGet(url);
			// 执行get请求.
			CloseableHttpResponse response = httpclient.execute(httpget);
			try {
				// 获取响应实体
				HttpEntity entity = response.getEntity();
				if (entity != null) {
					return EntityUtils.toString(entity, chatSet);
				}
			} finally {
				response.close();
			}
		} catch (ClientProtocolException e) {
			e.printStackTrace();
		} catch (ParseException e) {
			e.printStackTrace();
		} catch (IOException e) {
			e.printStackTrace();
		} finally {
			// 关闭连接,释放资源
			try {
				httpclient.close();
			} catch (IOException e) {
				e.printStackTrace();
			}
		}
		return null;
	}
	public static String postBody(String url,JSONObject params){
		RestTemplate restTemplate = new RestTemplate();
		HttpHeaders headers = new HttpHeaders();
		MediaType type = MediaType.parseMediaType("application/json; charset=UTF-8");
		headers.setContentType(type);
		headers.add("Accept", MediaType.APPLICATION_JSON.toString());
		org.springframework.http.HttpEntity<String> formEntity = new org.springframework.http.HttpEntity<String>(params.toString(), headers);
		String ret = restTemplate.postForObject(url, formEntity, String.class);
		return ret;
	}
	public static void putBody(String url,JSONObject params){
		RestTemplate restTemplate = new RestTemplate();
		HttpHeaders headers = new HttpHeaders();
		MediaType type = MediaType.parseMediaType("application/json; charset=UTF-8");
		headers.setContentType(type);
		headers.add("Accept", MediaType.APPLICATION_JSON.toString());
		org.springframework.http.HttpEntity<String> formEntity = new org.springframework.http.HttpEntity<String>(params.toString(), headers);
		restTemplate.put(url, formEntity, String.class);
	}
}