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首先需要json以及httpclient的maven依赖：
<dependency>
<groupId>com.alibaba</groupId>
<artifactId>fastjson</artifactId>
<version>1.2.62</version>
</dependency>
<dependency>
<groupId>org.apache.httpcomponents</groupId>
<artifactId>httpclient</artifactId>
<version>4.5.13</version>
</dependency>
spring下自动添加token以及支持多线程：
package com.supcon.mare.oms.util.test;
import com.alibaba.fastjson.JSONObject;
import org.apache.http.Consts;
import org.apache.http.HttpEntity;
import org.apache.http.client.config.RequestConfig;
import org.apache.http.client.entity.UrlEncodedFormEntity;
import org.apache.http.client.methods.*;
import org.apache.http.config.Registry;
import org.apache.http.config.RegistryBuilder;
import org.apache.http.conn.socket.ConnectionSocketFactory;
import org.apache.http.conn.socket.LayeredConnectionSocketFactory;
import org.apache.http.conn.socket.PlainConnectionSocketFactory;
import org.apache.http.conn.ssl.SSLConnectionSocketFactory;
import org.apache.http.entity.StringEntity;
import org.apache.http.impl.client.CloseableHttpClient;
import org.apache.http.impl.client.HttpClients;
import org.apache.http.impl.conn.PoolingHttpClientConnectionManager;
import org.apache.http.message.BasicNameValuePair;
import org.apache.http.util.EntityUtils;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.web.context.request.RequestContextHolder;
import org.springframework.web.context.request.ServletRequestAttributes;
import javax.net.ssl.SSLContext;
import javax.servlet.http.HttpServletRequest;
import java.io.IOException;
import java.net.URI;
import java.security.NoSuchAlgorithmException;
import java.util.ArrayList;
import java.util.Iterator;
import java.util.List;
/**
* @author: zhaoxu
* @description:
*/
public class HttpClientUtil {
private static Logger LOGGER = LoggerFactory.getLogger(HttpClientUtil.class);
private static PoolingHttpClientConnectionManager cm = null;
private static RequestConfig requestConfig = null;
static {
LayeredConnectionSocketFactory sslsf = null;
try {
sslsf = new SSLConnectionSocketFactory(SSLContext.getDefault());
} catch (NoSuchAlgorithmException e) {
LOGGER.error("创建SSL连接失败");
}
Registry<ConnectionSocketFactory> socketFactoryRegistry = RegistryBuilder.<ConnectionSocketFactory>create()
.register("https", sslsf)
.register("http", new PlainConnectionSocketFactory())
.build();
cm = new PoolingHttpClientConnectionManager(socketFactoryRegistry);
//多线程调用注意配置，根据线程数设定
cm.setMaxTotal(200);
//多线程调用注意配置，根据线程数设定
cm.setDefaultMaxPerRoute(300);
requestConfig = RequestConfig.custom()
//数据传输过程中数据包之间间隔的最大时间
.setSocketTimeout(20000)
//连接建立时间，三次握手完成时间
.setConnectTimeout(20000)
//重点参数
.setExpectContinueEnabled(true)
.setConnectionRequestTimeout(10000)
//重点参数，在请求之前校验链接是否有效
.setStaleConnectionCheckEnabled(true)
.build();
}
public static CloseableHttpClient getHttpClient() {
CloseableHttpClient httpClient = HttpClients.custom()
.setConnectionManager(cm)
.build();
return httpClient;
}
public static void closeResponse(CloseableHttpResponse closeableHttpResponse) throws IOException {
EntityUtils.consume(closeableHttpResponse.getEntity());
closeableHttpResponse.close();
}
/**
* get请求,params可为null,headers可为null
*
* @param headers
* @param url
* @return
* @throws IOException
*/
public static String get(JSONObject headers, String url, JSONObject params) throws IOException {
CloseableHttpClient httpClient = getHttpClient();
CloseableHttpResponse closeableHttpResponse = null;
// 创建get请求
HttpGet httpGet = null;
List<BasicNameValuePair> paramList = new ArrayList<>();
if (params != null) {
Iterator<String> iterator = params.keySet().iterator();
while (iterator.hasNext()) {
String paramName = iterator.next();
paramList.add(new BasicNameValuePair(paramName, params.get(paramName).toString()));
}
}
if (url.contains("?")) {
httpGet = new HttpGet(url + "&" + EntityUtils.toString(new UrlEncodedFormEntity(paramList, Consts.UTF_8)));
} else {
httpGet = new HttpGet(url + "?" + EntityUtils.toString(new UrlEncodedFormEntity(paramList, Consts.UTF_8)));
}
if (headers != null) {
Iterator iterator = headers.keySet().iterator();
while (iterator.hasNext()) {
String headerName = iterator.next().toString();
httpGet.addHeader(headerName, headers.get(headerName).toString());
}
} else {
HttpServletRequest request = ((ServletRequestAttributes) (RequestContextHolder.currentRequestAttributes())).getRequest();
if (request.getHeader(ClosedPathConstants.TOKEN) != null) {
String token = request.getHeader(ClosedPathConstants.TOKEN);
httpGet.addHeader(ClosedPathConstants.TOKEN, token);
}
}
httpGet.setConfig(requestConfig);
httpGet.addHeader("Content-Type", "application/json");
httpGet.addHeader("lastOperaTime", String.valueOf(System.currentTimeMillis()));
closeableHttpResponse = httpClient.execute(httpGet);
HttpEntity entity = closeableHttpResponse.getEntity();
String response = EntityUtils.toString(entity);
closeResponse(closeableHttpResponse);
return response;
}
/**
* post请求,params可为null,headers可为null
*
* @param headers
* @param url
* @param params
* @return
* @throws IOException
*/
public static String post(JSONObject headers, String url, JSONObject params) throws IOException {
CloseableHttpClient httpClient = getHttpClient();
CloseableHttpResponse closeableHttpResponse = null;
// 创建post请求
HttpPost httpPost = new HttpPost(url);
if (headers != null) {
Iterator iterator = headers.keySet().iterator();
while (iterator.hasNext()) {
String headerName = iterator.next().toString();
httpPost.addHeader(headerName, headers.get(headerName).toString());
}
} else {
HttpServletRequest request = ((ServletRequestAttributes) (RequestContextHolder.currentRequestAttributes())).getRequest();
if (request.getHeader(ClosedPathConstants.TOKEN) != null) {
String token = request.getHeader(ClosedPathConstants.TOKEN);
httpPost.addHeader(ClosedPathConstants.TOKEN, token);
}
}
httpPost.setConfig(requestConfig);
httpPost.addHeader("Content-Type", "application/json");
httpPost.addHeader("lastOperaTime", String.valueOf(System.currentTimeMillis()));
if (params != null) {
StringEntity stringEntity = new StringEntity(params.toJSONString(), "UTF-8");
httpPost.setEntity(stringEntity);
}
closeableHttpResponse = httpClient.execute(httpPost);
HttpEntity entity = closeableHttpResponse.getEntity();
String response = EntityUtils.toString(entity);
closeResponse(closeableHttpResponse);
return response;
}
/**
* delete,params可为null,headers可为null
*
* @param url
* @param params
* @return
* @throws IOException
*/
public static String delete(JSONObject headers, String url, JSONObject params) throws IOException {
CloseableHttpClient httpClient = getHttpClient();
CloseableHttpResponse closeableHttpResponse = null;
// 创建delete请求，HttpDeleteWithBody 为内部类，类在下面
HttpDeleteWithBody httpDelete = new HttpDeleteWithBody(url);
if (headers != null) {
Iterator iterator = headers.keySet().iterator();
while (iterator.hasNext()) {
String headerName = iterator.next().toString();
httpDelete.addHeader(headerName, headers.get(headerName).toString());
}
} else {
HttpServletRequest request = ((ServletRequestAttributes) (RequestContextHolder.currentRequestAttributes())).getRequest();
if (request.getHeader(ClosedPathConstants.TOKEN) != null) {
String token = request.getHeader(ClosedPathConstants.TOKEN);
httpDelete.addHeader(ClosedPathConstants.TOKEN, token);
}
}
httpDelete.setConfig(requestConfig);
httpDelete.addHeader("Content-Type", "application/json");
httpDelete.addHeader("lastOperaTime", String.valueOf(System.currentTimeMillis()));
if (params != null) {
StringEntity stringEntity = new StringEntity(params.toJSONString(), "UTF-8");
httpDelete.setEntity(stringEntity);
}
closeableHttpResponse = httpClient.execute(httpDelete);
HttpEntity entity = closeableHttpResponse.getEntity();
String response = EntityUtils.toString(entity);
closeResponse(closeableHttpResponse);
return response;
}
/**
* put,params可为null,headers可为null
*
* @param url
* @param params
* @return
* @throws IOException
*/
public static String put(JSONObject headers, String url, JSONObject params) throws IOException {
CloseableHttpClient httpClient = getHttpClient();
CloseableHttpResponse closeableHttpResponse = null;
// 创建put请求
HttpPut httpPut = new HttpPut(url);
if (headers != null) {
Iterator iterator = headers.keySet().iterator();
while (iterator.hasNext()) {
String headerName = iterator.next().toString();
httpPut.addHeader(headerName, headers.get(headerName).toString());
}
} else {
HttpServletRequest request = ((ServletRequestAttributes) (RequestContextHolder.currentRequestAttributes())).getRequest();
if (request.getHeader(ClosedPathConstants.TOKEN) != null) {
String token = request.getHeader(ClosedPathConstants.TOKEN);
httpPut.addHeader(ClosedPathConstants.TOKEN, token);
}
}
httpPut.setConfig(requestConfig);
httpPut.addHeader("Content-Type", "application/json");
httpPut.addHeader("lastOperaTime", String.valueOf(System.currentTimeMillis()));
if (params != null) {
StringEntity stringEntity = new StringEntity(params.toJSONString(), "UTF-8");
httpPut.setEntity(stringEntity);
}
// 从响应模型中获得具体的实体
closeableHttpResponse = httpClient.execute(httpPut);
HttpEntity entity = closeableHttpResponse.getEntity();
String response = EntityUtils.toString(entity);
closeResponse(closeableHttpResponse);
return response;
}
public static class HttpDeleteWithBody extends HttpEntityEnclosingRequestBase {
public static final String METHOD_NAME = "DELETE";
@Override
public String getMethod() {
return METHOD_NAME;
}
public HttpDeleteWithBody(final String uri) {
super();
setURI(URI.create(uri));
}
public HttpDeleteWithBody(final URI uri) {
super();
setURI(uri);
}
public HttpDeleteWithBody() {
super();
}
}
}
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