HttpClient登陆后获取并携带cookies发起请求
最近项目中，用到了登陆后获取并携带cookies发起请求的业务场景，现总结写出来备忘一下。
1.定义存取cookies信息的全局变量
public class HttpUtil {
/**
* 用来存取cookies信息的变量.
*/
private static CookieStore cookieStore;
2.登陆后获取cookies信息存储到全局变量
public class HttpUtil {
/**
*
* @param httpUrl
* 地址
* @param paramMap
* 参数
*
*/
public static String loginPost(String httpUrl, Map<String, Object> paramMap) throws Exception {
if (log.isInfoEnabled()) {
log.info("请求httpUrl=" + httpUrl);
log.info("请求params=" + JSONObject.toJSONString(paramMap));
}
// 创建httpPost
HttpPost httpPost = new HttpPost(httpUrl);
// 设置参数
List<NameValuePair> params = new ArrayList<>();
if (paramMap != null && paramMap.size() > 0) {
Set<String> keySet = paramMap.keySet();
for (String key : keySet) {
params.add(new BasicNameValuePair(key, UcopCommonUtil.convertString(paramMap.get(key))));
}
httpPost.setEntity(new UrlEncodedFormEntity(params,"UTF-8"));
}
String response;
DefaultHttpClient httpClient = null;
try {
httpClient = new DefaultHttpClient();
String contentCharset = CoreProtocolPNames.HTTP_CONTENT_CHARSET;
String soTimeOut = CoreConnectionPNames.SO_TIMEOUT;
String connectTimeOut = CoreConnectionPNames.CONNECTION_TIMEOUT;
httpClient.getParams().setParameter(contentCharset, "utf-8");
httpClient.getParams().setParameter(soTimeOut, 60000);
httpClient.getParams().setParameter(connectTimeOut, 60000);
HttpResponse httpResponse = httpClient.execute(httpPost);
// 获得返回结果
response = EntityUtils.toString(httpResponse.getEntity(), UcopUtils.UCOP_DEFAULT_CHARSET);
// 获得cookie并存取
this.cookieStore = httpClient.getCookieStore();
List<Cookie> cookieList = this.cookieStore.getCookies();
for (Cookie cookie : cookieList){
String name =cookie.getName();
String value = cookie.getValue();
log.info("登陆成功，cookie name = " + name + ", cookie value = " + value);
}
if (log.isInfoEnabled()) {
log.info("响应内容=" + response);
}
return response;
} catch (Exception e) {
log.error("HttpPost请求失败：" + e.getMessage(), e);
throw new RuntimeException("HttpPost请求失败：" + e.getMessage(), e);
} finally {
if (null != httpClient) {
httpClient.getConnectionManager().shutdown();
}
}
}
3.携带cookie发送业务请求
public class HttpUtil {
/**
*
* @param url 请求地址
* @param paramMap 请求内容
* @return 响应内容
* @throws Exception
*/
public static String requestPostWithCookie(String url, Map<String, Object> paramMap) throws Exception {
if (log.isInfoEnabled()) {
log.info("post请求地址：" + url);
log.info("post请求内容：" + paramMap);
}
long beginTime = System.currentTimeMillis();
try {
HttpClient httpClient = HttpClients.custom().setDefaultCookieStore(this.cookieStore).build();
HttpPost httpPost = new HttpPost(url);
// 设置参数
List<NameValuePair> params = new ArrayList<>();
if (paramMap != null && paramMap.size() > 0) {
Set<String> keySet = paramMap.keySet();
for (String key : keySet) {
params.add(new BasicNameValuePair(key, UcopCommonUtil.convertString(paramMap.get(key))));
}
httpPost.setEntity(new UrlEncodedFormEntity(params,"UTF-8"));
}
// 设置请求和传输超时时间
RequestConfig requestConfig = RequestConfig.custom().setSocketTimeout(120000).setConnectTimeout(120000).build();
httpPost.setConfig(requestConfig);
// 发起请求
HttpResponse response = httpClient.execute(httpPost);
// 获取响应数据并转换成JSON
String resString = EntityUtils.toString(response.getEntity(), UcopUtils.UCOP_DEFAULT_CHARSET);
log.info("post响应内容: " + resString);
return resString;
} catch (Exception e) {
log.error("请求失败：" + e.getMessage(), e);
throw e;
} finally {
log.info("结束post请求，耗时(ms)：" + (System.currentTimeMillis() - beginTime));
}
}
4.完整示例代码
package com.zat.ucop.bus.service.impl; import com.alibaba.fastjson.JSONObject;
import com.zat.ucop.service.util.UcopCommonUtil;
import com.zat.ucop.service.util.UcopUtils;
import org.apache.http.HttpResponse;
import org.apache.http.NameValuePair;
import org.apache.http.client.CookieStore;
import org.apache.http.client.HttpClient;
import org.apache.http.client.config.RequestConfig;
import org.apache.http.client.entity.UrlEncodedFormEntity;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.cookie.Cookie;
import org.apache.http.impl.client.DefaultHttpClient;
import org.apache.http.impl.client.HttpClients;
import org.apache.http.message.BasicNameValuePair;
import org.apache.http.params.CoreConnectionPNames;
import org.apache.http.params.CoreProtocolPNames;
import org.apache.http.util.EntityUtils;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory; import java.util.ArrayList;
import java.util.List;
import java.util.Map;
import java.util.Set; public class HttpUtil { private static Logger log = LoggerFactory.getLogger(HttpUtil.class); /**
* 用来存取cookies信息的变量.
*/
private static CookieStore cookieStore; /**
*
* @param httpUrl
* 地址
* @param paramMap
* 参数
*
*/
public static String loginPost(String httpUrl, Map<String, Object> paramMap) throws Exception {
if (log.isInfoEnabled()) {
log.info("请求httpUrl=" + httpUrl);
log.info("请求params=" + JSONObject.toJSONString(paramMap));
} // 创建httpPost
HttpPost httpPost = new HttpPost(httpUrl); // 设置参数
List<NameValuePair> params = new ArrayList<>();
if (paramMap != null && paramMap.size() > 0) {
Set<String> keySet = paramMap.keySet();
for (String key : keySet) {
params.add(new BasicNameValuePair(key, UcopCommonUtil.convertString(paramMap.get(key))));
}
httpPost.setEntity(new UrlEncodedFormEntity(params,"UTF-8"));
} String response;
DefaultHttpClient httpClient = null;
try {
httpClient = new DefaultHttpClient();
String contentCharset = CoreProtocolPNames.HTTP_CONTENT_CHARSET;
String soTimeOut = CoreConnectionPNames.SO_TIMEOUT;
String connectTimeOut = CoreConnectionPNames.CONNECTION_TIMEOUT;
httpClient.getParams().setParameter(contentCharset, "utf-8");
httpClient.getParams().setParameter(soTimeOut, 60000);
httpClient.getParams().setParameter(connectTimeOut, 60000); HttpResponse httpResponse = httpClient.execute(httpPost); // 获得返回结果
response = EntityUtils.toString(httpResponse.getEntity(), UcopUtils.UCOP_DEFAULT_CHARSET); // 获得cookie并存取
cookieStore = httpClient.getCookieStore();
List<Cookie> cookieList = cookieStore.getCookies();
for (Cookie cookie : cookieList){
String name =cookie.getName();
String value = cookie.getValue();
log.info("登陆成功，cookie name = " + name + ", cookie value = " + value);
}
if (log.isInfoEnabled()) {
log.info("响应内容=" + response);
}
return response;
} catch (Exception e) {
log.error("HttpPost请求失败：" + e.getMessage(), e);
throw new RuntimeException("HttpPost请求失败：" + e.getMessage(), e);
} finally {
if (null != httpClient) {
httpClient.getConnectionManager().shutdown();
}
}
} /**
*
* @param url 请求地址
* @param paramMap 请求内容
* @return 响应内容
* @throws Exception
*/
public static String requestPostWithCookie(String url, Map<String, Object> paramMap) throws Exception {
if (log.isInfoEnabled()) {
log.info("post请求地址：" + url);
log.info("post请求内容：" + paramMap);
} long beginTime = System.currentTimeMillis();
try {
HttpClient httpClient = HttpClients.custom().setDefaultCookieStore(cookieStore).build();
HttpPost httpPost = new HttpPost(url); // 设置参数
List<NameValuePair> params = new ArrayList<>();
if (paramMap != null && paramMap.size() > 0) {
Set<String> keySet = paramMap.keySet();
for (String key : keySet) {
params.add(new BasicNameValuePair(key, UcopCommonUtil.convertString(paramMap.get(key))));
}
httpPost.setEntity(new UrlEncodedFormEntity(params,"UTF-8"));
} // 设置请求和传输超时时间
RequestConfig requestConfig = RequestConfig.custom().setSocketTimeout(120000).setConnectTimeout(120000).build();
httpPost.setConfig(requestConfig); // 发起请求
HttpResponse response = httpClient.execute(httpPost); // 获取响应数据并转换成JSON
String resString = EntityUtils.toString(response.getEntity(), UcopUtils.UCOP_DEFAULT_CHARSET);
log.info("post响应内容: " + resString); return resString;
} catch (Exception e) {
log.error("请求失败：" + e.getMessage(), e);
throw e;
} finally {
log.info("结束post请求，耗时(ms)：" + (System.currentTimeMillis() - beginTime));
}
} }
补充：HttpClient获取Cookie的两种方式
1.使用DefaultHttpClient类实例化httpClient对象：
package com.zat.ucop.bus.service.impl; import com.alibaba.fastjson.JSONObject;
import com.zat.ucop.service.util.UcopCommonUtil;
import com.zat.ucop.service.util.UcopUtils;
import org.apache.http.HttpResponse;
import org.apache.http.NameValuePair;
import org.apache.http.client.CookieStore;
import org.apache.http.client.HttpClient;
import org.apache.http.client.config.RequestConfig;
import org.apache.http.client.entity.UrlEncodedFormEntity;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.cookie.Cookie;
import org.apache.http.impl.client.DefaultHttpClient;
import org.apache.http.impl.client.HttpClients;
import org.apache.http.message.BasicNameValuePair;
import org.apache.http.params.CoreConnectionPNames;
import org.apache.http.params.CoreProtocolPNames;
import org.apache.http.util.EntityUtils;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory; import java.util.ArrayList;
import java.util.List;
import java.util.Map;
import java.util.Set; public class HttpUtil { private static Logger log = LoggerFactory.getLogger(HttpUtil.class); /**
* 用来存取cookies信息的变量.
*/
private static CookieStore cookieStore; /**
*
* @param httpUrl
* 地址
* @param paramMap
* 参数
*
*/
public static String loginPost(String httpUrl, Map<String, Object> paramMap) throws Exception {
if (log.isInfoEnabled()) {
log.info("请求httpUrl=" + httpUrl);
log.info("请求params=" + JSONObject.toJSONString(paramMap));
} // 创建httpPost
HttpPost httpPost = new HttpPost(httpUrl); // 设置参数
List<NameValuePair> params = new ArrayList<>();
if (paramMap != null && paramMap.size() > 0) {
Set<String> keySet = paramMap.keySet();
for (String key : keySet) {
params.add(new BasicNameValuePair(key, UcopCommonUtil.convertString(paramMap.get(key))));
}
httpPost.setEntity(new UrlEncodedFormEntity(params,"UTF-8"));
} String response;
DefaultHttpClient httpClient = null;
try {
httpClient = new DefaultHttpClient();
String contentCharset = CoreProtocolPNames.HTTP_CONTENT_CHARSET;
String soTimeOut = CoreConnectionPNames.SO_TIMEOUT;
String connectTimeOut = CoreConnectionPNames.CONNECTION_TIMEOUT;
httpClient.getParams().setParameter(contentCharset, "utf-8");
httpClient.getParams().setParameter(soTimeOut, 60000);
httpClient.getParams().setParameter(connectTimeOut, 60000); HttpResponse httpResponse = httpClient.execute(httpPost); // 获得返回结果
response = EntityUtils.toString(httpResponse.getEntity(), UcopUtils.UCOP_DEFAULT_CHARSET); // 获得cookie并存取
82 cookieStore = httpClient.getCookieStore();
83 List<Cookie> cookieList = cookieStore.getCookies();
84 for (Cookie cookie : cookieList){
85 String name =cookie.getName();
86 String value = cookie.getValue();
87 log.info("登陆成功，cookie name = " + name + ", cookie value = " + value);
88 }
if (log.isInfoEnabled()) {
log.info("响应内容=" + response);
}
return response;
} catch (Exception e) {
log.error("HttpPost请求失败：" + e.getMessage(), e);
throw new RuntimeException("HttpPost请求失败：" + e.getMessage(), e);
} finally {
if (null != httpClient) {
httpClient.getConnectionManager().shutdown();
}
}
} }
2.使用CloseableHttpClient类实例化httpClient对象：
package com.zat.ucop.bus.service.impl; import com.alibaba.fastjson.JSONObject;
import com.zat.ucop.service.util.UcopCommonUtil;
import com.zat.ucop.service.util.UcopUtils;
import org.apache.http.HttpResponse;
import org.apache.http.NameValuePair;
import org.apache.http.client.CookieStore;
import org.apache.http.client.HttpClient;
import org.apache.http.client.config.RequestConfig;
import org.apache.http.client.entity.UrlEncodedFormEntity;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.cookie.Cookie;
import org.apache.http.impl.client.DefaultHttpClient;
import org.apache.http.impl.client.HttpClients;
import org.apache.http.message.BasicNameValuePair;
import org.apache.http.params.CoreConnectionPNames;
import org.apache.http.params.CoreProtocolPNames;
import org.apache.http.util.EntityUtils;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory; import java.util.ArrayList;
import java.util.List;
import java.util.Map;
import java.util.Set; public class HttpUtil { private static Logger log = LoggerFactory.getLogger(HttpUtil.class); /**
* 用来存取cookies信息的变量.
*/
private static CookieStore cookieStore; /**
*
* @param url 请求地址
* @param paramMap 请求内容
* @return 响应内容
* @throws Exception
*/
public static String requestPostWithCookie(String url, Map<String, Object> paramMap) throws Exception {
if (log.isInfoEnabled()) {
log.info("post请求地址：" + url);
log.info("post请求内容：" + paramMap);
} long beginTime = System.currentTimeMillis();
try {
CookieStore cookieStore = new BasicCookieStore();
HttpClient httpClient = HttpClients.custom().setDefaultCookieStore(cookieStore).build();
HttpPost httpPost = new HttpPost(url); // 设置参数
List<NameValuePair> params = new ArrayList<>();
if (paramMap != null && paramMap.size() > 0) {
Set<String> keySet = paramMap.keySet();
for (String key : keySet) {
params.add(new BasicNameValuePair(key, UcopCommonUtil.convertString(paramMap.get(key))));
}
httpPost.setEntity(new UrlEncodedFormEntity(params,"UTF-8"));
} // 设置请求和传输超时时间
RequestConfig requestConfig = RequestConfig.custom().setSocketTimeout(120000).setConnectTimeout(120000).build();
httpPost.setConfig(requestConfig); // 发起请求
HttpResponse response = httpClient.execute(httpPost); 74 List<Cookie> cookieList = cookieStore.getCookies();
75 for (Cookie cookie : cookieList){
76 String name =cookie.getName();
77 String value = cookie.getValue();
78 log.info("cookie name = " + name + ", cookie value = " + value);
79 } // 获取响应数据并转换成JSON
String resString = EntityUtils.toString(response.getEntity(), UcopUtils.UCOP_DEFAULT_CHARSET);
log.info("post响应内容: " + resString); return resString;
} catch (Exception e) {
log.error("请求失败：" + e.getMessage(), e);
throw e;
} finally {
log.info("结束post请求，耗时(ms)：" + (System.currentTimeMillis() - beginTime));
}
} }
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