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话不多说,直接上代码,记得一键三连哦~
HttpUtils.java
import lombok.extern.slf4j.Slf4j;
import org.apache.http.HttpEntity;
import org.apache.http.HttpResponse;
import org.apache.http.HttpStatus;
import org.apache.http.NameValuePair;
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.CloseableHttpResponse;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.entity.StringEntity;
import org.apache.http.impl.client.CloseableHttpClient;
import org.apache.http.impl.client.DefaultHttpClient;
import org.apache.http.impl.client.HttpClients;
import org.apache.http.util.EntityUtils;
import javax.net.ssl.*;
import java.io.*;
import java.net.*;
import java.nio.charset.StandardCharsets;
import java.security.cert.X509Certificate;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
/**
* HTTP请求工具类
*
* @author xiegege
*/
@Slf4j
public class HttpUtils {
private static HttpClient httpClient;
static {
httpClient = getHttpClient();
}
/**
* 微信统一下单接口发送post请求
*
* @param url 发送请求的URL
* @param requestXml map转换xml的报文
* @return 所代表远程资源的响应结果
*/
public static String doPost(String url, String requestXml) {
CloseableHttpClient httpClient;
CloseableHttpResponse httpResponse;
// 创建httpClient连接对象
httpClient = HttpClients.createDefault();
// 创建post请求连接对象
HttpPost httpPost = new HttpPost(url);
// 创建连接请求对象,并设置连接参数
RequestConfig requestConfig = RequestConfig.custom()
.setConnectTimeout(15000) // 连接服务区主机超时时间
.setConnectionRequestTimeout(60000) // 连接请求超时时间
.setSocketTimeout(60000).build(); // 设置读取响应数据超时时间
// 为httppost请求设置参数
httpPost.setConfig(requestConfig);
// 将上传参数放到entity属性中
httpPost.setEntity(new StringEntity(requestXml, "UTF-8"));
// 添加头信息
httpPost.addHeader("Content-type", "text/xml");
String result = "";
try {
// 发送请求
httpResponse = httpClient.execute(httpPost);
// 从相应对象中获取返回内容
HttpEntity entity = httpResponse.getEntity();
result = EntityUtils.toString(entity, "UTF-8");
} catch (IOException e) {
e.printStackTrace();
}
return result;
}
/**
* 向指定 URL 发送GET方法的请求
*
* @param url 发送请求的 URL
* @param param 请求参数,请求参数应该是 name1=value1&name2=value2 的形式。
* @return 所代表远程资源的响应结果
*/
public static String sendGet(String url, String param) {
return sendGet(url, param, "UTF-8");
}
/**
* 向指定 URL 发送GET方法的请求
*
* @param url 发送请求的 URL
* @param param 请求参数,请求参数应该是 name1=value1&name2=value2 的形式。
* @param contentType 编码类型
* @return 所代表远程资源的响应结果
*/
public static String sendGet(String url, String param, String contentType) {
StringBuilder result = new StringBuilder();
BufferedReader in = null;
try {
String urlNameString = url + "?" + param;
log.info("sendGet - {}", urlNameString);
URL realUrl = new URL(urlNameString);
URLConnection connection = realUrl.openConnection();
connection.setRequestProperty("accept", "*/*");
connection.setRequestProperty("connection", "Keep-Alive");
connection.setRequestProperty("user-agent", "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1;SV1)");
connection.connect();
in = new BufferedReader(new InputStreamReader(connection.getInputStream(), contentType));
String line;
while ((line = in.readLine()) != null) {
result.append(line);
}
log.info("recv - {}", result);
} catch (ConnectException e) {
log.error("调用HttpUtils.sendGet ConnectException, url=" + url + ",param=" + param, e);
} catch (SocketTimeoutException e) {
log.error("调用HttpUtils.sendGet SocketTimeoutException, url=" + url + ",param=" + param, e);
} catch (IOException e) {
log.error("调用HttpUtils.sendGet IOException, url=" + url + ",param=" + param, e);
} catch (Exception e) {
log.error("调用HttpsUtil.sendGet Exception, url=" + url + ",param=" + param, e);
} finally {
try {
if (in != null) {
in.close();
}
} catch (Exception ex) {
log.error("调用in.close Exception, url=" + url + ",param=" + param, ex);
}
}
return result.toString();
}
/**
* 向指定 URL 发送POST方法的请求
*
* @param url 发送请求的 URL
* @param param 请求参数,请求参数应该是 name1=value1&name2=value2 的形式。
* @return 所代表远程资源的响应结果
*/
public static String sendPost(String url, String param) {
PrintWriter out = null;
BufferedReader in = null;
StringBuilder result = new StringBuilder();
try {
log.info("sendPost - {}", url);
URL realUrl = new URL(url);
URLConnection conn = realUrl.openConnection();
conn.setRequestProperty("accept", "*/*");
conn.setRequestProperty("connection", "Keep-Alive");
conn.setRequestProperty("user-agent", "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1;SV1)");
conn.setRequestProperty("Accept-Charset", "utf-8");
conn.setRequestProperty("contentType", "utf-8");
conn.setDoOutput(true);
conn.setDoInput(true);
out = new PrintWriter(conn.getOutputStream());
out.print(param);
out.flush();
in = new BufferedReader(new