HttpClientUtil 实现doget 和 dopost

Dear 丶 2022-10-02 13:46 232阅读 0赞

package com.shangyu.utils;

import java.io.IOException;

import java.util.ArrayList;

import java.util.HashMap;

import java.util.Iterator;

import java.util.List;

import java.util.Map;

import java.util.Map.Entry;

import java.util.Set;

import org.apache.http.Header;

import org.apache.http.HttpEntity;

import org.apache.http.HttpResponse;

import org.apache.http.NameValuePair;

import org.apache.http.client.HttpClient;

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.message.BasicNameValuePair;

import org.apache.http.util.EntityUtils;

import org.slf4j.Logger;

import org.slf4j.LoggerFactory;

public class HttpClientUtil \{

private static final Logger log = LoggerFactory.getLogger(HttpClientUtil.class);

public static String UTF8 = "UTF-8";

public static String httpPost(String url, Map<String, String> params, String encoding) throws Exception \{

log.debug("收到HTTP POST请求");

String result = "";

// 创建默认的httpClient实例.

CloseableHttpClient httpclient = HttpClients.createDefault();

// 创建httppost

HttpPost httppost = new HttpPost(url);

//参数

List<NameValuePair> formparams = new ArrayList<NameValuePair>();

if (params != null) \{

log.debug("发送post参数");

Set<String> keys = params.keySet();

for (String key : keys) \{

log.debug("param:" + key);

formparams.add(new BasicNameValuePair(key, params.get(key)));

UrlEncodedFormEntity uefEntity;

try \{

uefEntity = new UrlEncodedFormEntity(formparams, encoding);

httppost.setEntity(uefEntity);

log.debug("executing request " + httppost.getURI());

CloseableHttpResponse response = httpclient.execute(httppost);

try \{

log.debug("返回HTTP状态:" + response.getStatusLine());

Header\[\] headers = response.getAllHeaders();

log.debug("返回HTTP头");

log.debug("--------------------------------------");

for (Header header : headers) \{

log.debug(header.getName() + "-->" + header.getValue());

log.debug("--------------------------------------");

HttpEntity entity = response.getEntity();

if (entity != null) \{

result = EntityUtils.toString(entity, encoding);

log.debug("--------------------------------------");

log.debug("Response content: " + result);

log.debug("--------------------------------------");

\} finally \{

response.close();

\} catch (IOException e) \{

throw e;

\} finally \{

// 关闭连接,释放资源

try \{

httpclient.close();

\} catch (IOException e) \{

return result;

public static String httpGet(String url, String encoding) throws Exception \{

log.debug("收到HTTP GET请求");

String result = "";

CloseableHttpClient httpclient = HttpClients.createDefault();

try \{

// 创建httpget.

HttpGet httpget = new HttpGet(url);

log.debug("executing request " + httpget.getURI());

// 执行get请求.

CloseableHttpResponse response = httpclient.execute(httpget);

try \{

log.debug("返回HTTP状态:" + response.getStatusLine());

Header\[\] headers = response.getAllHeaders();

log.debug("返回HTTP头");

log.debug("--------------------------------------");

for (Header header : headers) \{

log.debug(header.getName() + "-->" + header.getValue());

log.debug("--------------------------------------"); // 获取响应实体

HttpEntity entity = response.getEntity();

if (entity != null) \{

result = EntityUtils.toString(entity, encoding);

// 打印响应内容

log.debug("Response content: " + result);

log.debug("------------------------------------");

\} finally \{

response.close();

\} catch (Exception e) \{

throw e;

\} finally \{

// 关闭连接,释放资源

try \{

httpclient.close();

\} catch (IOException e) \{

return result;

转载于:https://blog.51cto.com/825272560/1862551

HttpClientUtil 实现doget 和 dopost

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