HttpClientUtils.java
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package com.qgutech.util;
import lombok.extern.slf4j.Slf4j;
import org.apache.commons.collections4.MapUtils;
import org.apache.commons.lang3.StringUtils;
import org.apache.http.*;
import org.apache.http.client.config.RequestConfig;
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.message.BasicNameValuePair;
import org.apache.http.util.EntityUtils;
import java.io.IOException;
import java.io.UnsupportedEncodingException;
import java.net.URLEncoder;
import java.util.ArrayList;
import java.util.List;
import java.util.Map;
/**
* http请求工具类
*/
@Slf4j
public class HttpClientUtils {
/**
* 发送post请求
*
* @return
*/
public static String doPostRequest(String url, Map<String, String> header, Map<String, String> params, HttpEntity httpEntity) {
String resultStr = "";
if (StringUtils.isEmpty(url)) {
return resultStr;
}
CloseableHttpClient httpClient = null;
CloseableHttpResponse httpResponse = null;
try {
httpClient = SSLClientCustom.getHttpClinet();
HttpPost httpPost = new HttpPost(url);
// 请求头header信息
if (MapUtils.isNotEmpty(header)) {
for (Map.Entry<String, String> stringStringEntry : header.entrySet()) {
httpPost.setHeader(stringStringEntry.getKey(), stringStringEntry.getValue());
}
}
// 请求参数信息
if (MapUtils.isNotEmpty(params)) {
List<NameValuePair> paramList = new ArrayList<NameValuePair>();
for (Map.Entry<String, String> stringStringEntry : params.entrySet()) {
paramList.add(new BasicNameValuePair(stringStringEntry.getKey(), stringStringEntry.getValue()));
}
UrlEncodedFormEntity urlEncodedFormEntity = new UrlEncodedFormEntity(paramList, Consts.UTF_8);
httpPost.setEntity(urlEncodedFormEntity);
}
//实体设置
if (httpEntity != null) {
httpPost.setEntity(httpEntity);
}
//发起请求
httpResponse = httpClient.execute(httpPost);
if (null != httpResponse && null != httpResponse.getStatusLine()) {
int statusCode = httpResponse.getStatusLine().getStatusCode();
if (statusCode == HttpStatus.SC_OK) {
HttpEntity httpResponseEntity = httpResponse.getEntity();
resultStr = EntityUtils.toString(httpResponseEntity);
} else {
StringBuffer stringBuffer = new StringBuffer();
HeaderIterator headerIterator = httpResponse.headerIterator();
while (headerIterator.hasNext()) {
stringBuffer.append("\t" + headerIterator.next());
}
log.info("异常信息:请求地址:{},响应状态和结果:{}", url, statusCode + ";" + stringBuffer);
}
} else {
log.error("请求异常，未获取正常相应，请求地址:{}", url);
}
} catch (Exception e) {
e.printStackTrace();
} finally {
HttpClientUtils.closeConnection(httpClient, httpResponse);
}
return resultStr;
}
public static String doGetRequest(String url, Map<String, String> header, Map<String, String> params) {
String resultStr = "";
if (StringUtils.isEmpty(url)) {
return resultStr;
}
CloseableHttpClient httpClient = null;
CloseableHttpResponse httpResponse = null;
try {
httpClient = SSLClientCustom.getHttpClinet();
//请求参数信息
if (MapUtils.isNotEmpty(params)) {
url = url + buildUrl(params);
}
HttpGet httpGet = new HttpGet(url);
RequestConfig requestConfig = RequestConfig.custom().setConnectTimeout(30000) //连接超时
.setConnectionRequestTimeout(30000) //请求超时
.setSocketTimeout(30000) //套接字连接超时
.setRedirectsEnabled(true).build(); //允许重定向
httpGet.setConfig(requestConfig);
if (MapUtils.isNotEmpty(header)) {
for (Map.Entry<String, String> stringStringEntry : header.entrySet()) {
httpGet.setHeader(stringStringEntry.getKey(), stringStringEntry.getValue());
}
}
//发起请求
httpResponse = httpClient.execute(httpGet);
int statusCode = httpResponse.getStatusLine().getStatusCode();
if (statusCode == HttpStatus.SC_OK) {
resultStr = EntityUtils.toString(httpResponse.getEntity(), Consts.UTF_8);
} else {
StringBuffer stringBuffer = new StringBuffer();
HeaderIterator headerIterator = httpResponse.headerIterator();
while (headerIterator.hasNext()) {
stringBuffer.append("\t" + headerIterator.next());
}
}
} catch (Exception e) {
e.printStackTrace();
} finally {
HttpClientUtils.closeConnection(httpClient, httpResponse);
}
return resultStr;
}
/**
* 关掉连接释放资源
*/
private static void closeConnection(CloseableHttpClient httpClient, CloseableHttpResponse httpResponse) {
if (httpClient != null) {
try {
httpClient.close();
} catch (IOException e) {
e.printStackTrace();
}
}
if (httpResponse != null) {
try {
httpResponse.close();
} catch (IOException e) {
e.printStackTrace();
}
}
}
/**
* 构造get请求的参数
*
* @return
*/
private static String buildUrl(Map<String, String> map) {
if (MapUtils.isEmpty(map)) {
return "";
}
StringBuffer stringBuffer = new StringBuffer("?");
for (Map.Entry<String, String> stringStringEntry : map.entrySet()) {
try {
stringBuffer.append(URLEncoder.encode(stringStringEntry.getKey(), "UTF-8")).append("=");
stringBuffer.append(URLEncoder.encode(stringStringEntry.getValue(), "UTF-8")).append("&");
} catch (UnsupportedEncodingException e) {
e.printStackTrace();
}
}
String result = stringBuffer.toString();
if (StringUtils.isNotEmpty(result)) {
result = result.substring(0, result.length() - 1); //去掉结尾的&连接符
}
return result;
}
}