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| import org.apache.http.NameValuePair;
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.client.utils.URIBuilder;
import org.apache.http.entity.ContentType;
import org.apache.http.entity.StringEntity;
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;
import java.io.IOException;
import java.net.URI;
import java.util.ArrayList;
import java.util.List;
import java.util.Map;
/**
* httpclient工具类
*
* @author zhujx
* @date 2019/10/21
*/
public class CommHttpUtils {
private static final Logger logger = LoggerFactory.getLogger(CommHttpUtils.class);
private final static int SUCCESS = 200;
/**
* 带参数和请求头的GET请求
*
* @param url url
* @param param param
* @param header header
* @return java.lang.String
* @author zhujx
* @date 2019/10/21
*/
public static String doGet(String url, Map<String, String> param, Map<String, String> header) {
// 创建Httpclient对象
CloseableHttpClient httpClient = HttpClients.createDefault();
String resultString = "";
CloseableHttpResponse response = null;
try {
// 创建uri
URIBuilder builder = new URIBuilder(url);
if (param != null) {
for (String key : param.keySet()) {
builder.addParameter(key, param.get(key));
}
}
URI uri = builder.build();
// 创建http GET请求
HttpGet httpGet = new HttpGet(uri);
if (header != null) {
for (String key : header.keySet()) {
httpGet.setHeader(key, header.get(key));
}
}
// 执行请求
response = httpClient.execute(httpGet);
int statusCode = response.getStatusLine().getStatusCode();
// 判断返回状态是否为200
if (statusCode == SUCCESS) {
resultString = EntityUtils.toString(response.getEntity(), "UTF-8");
} else {
logger.warn("状态码:{}", statusCode);
resultString = null;
}
} catch (Exception e) {
logger.warn(e.getMessage(), e);
} finally {
try {
if (response != null) {
response.close();
}
httpClient.close();
} catch (IOException e) {
logger.warn(e.getMessage(), e);
}
}
return resultString;
}
/**
* 带参数GET请求
*
* @param url url
* @param param param
* @return java.lang.String
* @author zhujx
* @date 2019/10/21
*/
public static String doGet(String url, Map<String, String> param) {
return doGet(url, param, null);
}
/**
* 无参GET请求
*
* @param url url
* @return java.lang.String
* @author zhujx
* @date 2019/10/21
*/
public static String doGet(String url) {
return doGet(url, null);
}
/**
* application/x-www-form-urlencoded编码方式带参数和请求头的POST请求
*
* @param url url
* @param param param
* @param header header
* @return java.lang.String
* @author zhujx
* @date 2019/10/21
*/
public static String doPost(String url, Map<String, String> param, Map<String, String> header) {
// 创建Httpclient对象
CloseableHttpClient httpClient = HttpClients.createDefault();
CloseableHttpResponse response = null;
String resultString = "";
try {
// 创建Http Post请求
HttpPost httpPost = new HttpPost(url);
//添加请求头信息
if (header != null) {
for (String key : header.keySet()) {
httpPost.setHeader(key, header.get(key));
}
}
// 创建参数列表
if (param != null) {
List<NameValuePair> paramList = new ArrayList<>();
for (String key : param.keySet()) {
paramList.add(new BasicNameValuePair(key, param.get(key)));
}
// 模拟表单
UrlEncodedFormEntity entity = new UrlEncodedFormEntity(paramList, "utf-8");
httpPost.setEntity(entity);
}
// 执行http请求
response = httpClient.execute(httpPost);
int statusCode = response.getStatusLine().getStatusCode();
// 判断返回状态是否为200
if (statusCode == SUCCESS) {
resultString = EntityUtils.toString(response.getEntity(), "UTF-8");
} else {
logger.warn("状态码:{}", statusCode);
resultString = null;
}
} catch (Exception e) {
logger.warn(e.getMessage(), e);
} finally {
try {
if (response != null) {
response.close();
}
httpClient.close();
} catch (IOException e) {
logger.warn(e.getMessage(), e);
}
}
return resultString;
}
/**
* application/x-www-form-urlencoded编码方式带参POST请求
*
* @param url url
* @param param param
* @return java.lang.String
* @author zhujx
* @date 2019/10/21
*/
public static String doPost(String url, Map<String, String> param) {
return doPost(url, param, null);
}
/**
* application/x-www-form-urlencoded编码方式无参POST请求
*
* @param url url
* @return java.lang.String
* @author zhujx
* @date 2019/10/21
*/
public static String doPost(String url) {
return doPost(url, null);
}
/**
* application/json编码方式带请求头POST请求
*
* @param url url
* @param json json
* @param header header
* @return java.lang.String
* @author zhujx
* @date 2019/10/21
*/
public static String doPostJson(String url, String json, Map<String, String> header) {
// 创建Httpclient对象
CloseableHttpClient httpClient = HttpClients.createDefault();
CloseableHttpResponse response = null;
String resultString = "";
try {
// 创建Http Post请求
HttpPost httpPost = new HttpPost(url);
//添加请求头信息
if (header != null) {
for (String key : header.keySet()) {
httpPost.setHeader(key, header.get(key));
}
}
// 创建请求内容
StringEntity entity = new StringEntity(json, ContentType.APPLICATION_JSON);
httpPost.setEntity(entity);
// 执行http请求
response = httpClient.execute(httpPost);
int statusCode = response.getStatusLine().getStatusCode();
if (statusCode == SUCCESS) {
resultString = EntityUtils.toString(response.getEntity(), "UTF-8");
} else {
logger.warn("状态码:{}", statusCode);
resultString = null;
}
} catch (Exception e) {
logger.warn(e.getMessage(), e);
} finally {
try {
if (response != null) {
response.close();
}
httpClient.close();
} catch (IOException e) {
logger.warn(e.getMessage(), e);
}
}
return resultString;
}
/**
* application/json编码方式POST请求
*
* @param url url
* @param json json
* @return java.lang.String
* @author zhujx
* @date 2019/10/21
*/
public static String doPostJson(String url, String json) {
return doPostJson(url, json, null);
}
}
|
