package org.sxkj.common.utils;
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import org.slf4j.Logger;
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import org.slf4j.LoggerFactory;
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import javax.net.ssl.*;
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import java.io.*;
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import java.net.*;
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import java.security.cert.X509Certificate;
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import java.util.HashMap;
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import java.util.List;
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import java.util.Map;
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/**
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* 通用http发送方法
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*
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* @author ruoyi
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*/
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public class HttpUtils
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{
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private static final Logger log = LoggerFactory.getLogger(HttpUtils.class);
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/**
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* 向指定 URL 发送GET方法的请求
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*
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* @param url 发送请求的 URL
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* @param param 请求参数，请求参数应该是 name1=value1&name2=value2 的形式。
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* @return 所代表远程资源的响应结果
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*/
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public static String sendGet(String url, String param)
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{
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return sendGet(url, param, "utf-8");
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}
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/**
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* 向指定 URL 发送GET方法的请求
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*
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* @param url 发送请求的 URL
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* @param param 请求参数，请求参数应该是 name1=value1&name2=value2 的形式。
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* @param contentType 编码类型
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* @return 所代表远程资源的响应结果
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*/
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public static String sendGet(String url, String param, String contentType)
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{
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StringBuilder result = new StringBuilder();
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BufferedReader in = null;
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try
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{
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String urlNameString = url + "?" + param;
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log.info("sendGet - {}", urlNameString);
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URL realUrl = new URL(urlNameString);
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URLConnection connection = realUrl.openConnection();
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connection.setRequestProperty("accept", "*/*");
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connection.setRequestProperty("connection", "Keep-Alive");
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connection.setRequestProperty("user-agent", "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1;SV1)");
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connection.connect();
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in = new BufferedReader(new InputStreamReader(connection.getInputStream(), contentType));
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String line;
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while ((line = in.readLine()) != null)
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{
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result.append(line);
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}
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log.info("recv - {}", result);
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}
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catch (ConnectException e)
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{
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log.error("调用HttpUtils.sendGet ConnectException, url=" + url + ",param=" + param, e);
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}
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catch (SocketTimeoutException e)
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{
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log.error("调用HttpUtils.sendGet SocketTimeoutException, url=" + url + ",param=" + param, e);
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}
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catch (IOException e)
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{
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log.error("调用HttpUtils.sendGet IOException, url=" + url + ",param=" + param, e);
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}
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catch (Exception e)
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{
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log.error("调用HttpsUtil.sendGet Exception, url=" + url + ",param=" + param, e);
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}
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finally
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{
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try
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{
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if (in != null)
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{
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in.close();
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}
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}
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catch (Exception ex)
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{
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log.error("调用in.close Exception, url=" + url + ",param=" + param, ex);
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}
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}
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return result.toString();
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}
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/**
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* 向指定 URL 发送POST方法的请求
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*
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* @param url 发送请求的 URL
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* @param param 请求参数，请求参数应该是 name1=value1&name2=value2 的形式。
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* @return 所代表远程资源的响应结果
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*/
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public static String sendPost(String url, String param)
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{
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PrintWriter out = null;
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BufferedReader in = null;
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StringBuilder result = new StringBuilder();
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try
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{
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String urlNameString = url;
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log.info("sendPost - {}", urlNameString);
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URL realUrl = new URL(urlNameString);
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URLConnection conn = realUrl.openConnection();
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conn.setRequestProperty("accept", "*/*");
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conn.setRequestProperty("connection", "Keep-Alive");
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conn.setRequestProperty("user-agent", "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1;SV1)");
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conn.setRequestProperty("Accept-Charset", "utf-8");
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conn.setRequestProperty("contentType", "utf-8");
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conn.setDoOutput(true);
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conn.setDoInput(true);
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out = new PrintWriter(conn.getOutputStream());
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out.print(param);
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out.flush();
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in = new BufferedReader(new InputStreamReader(conn.getInputStream(), "utf-8"));
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String line;
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while ((line = in.readLine()) != null)
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{
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result.append(line);
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}
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log.info("recv - {}", result);
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}
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catch (ConnectException e)
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{
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log.error("调用HttpUtils.sendPost ConnectException, url=" + url + ",param=" + param, e);
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}
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catch (SocketTimeoutException e)
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{
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log.error("调用HttpUtils.sendPost SocketTimeoutException, url=" + url + ",param=" + param, e);
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}
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catch (IOException e)
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{
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log.error("调用HttpUtils.sendPost IOException, url=" + url + ",param=" + param, e);
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}
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catch (Exception e)
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{
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log.error("调用HttpsUtil.sendPost Exception, url=" + url + ",param=" + param, e);
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}
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finally
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{
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try
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{
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if (out != null)
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{
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out.close();
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}
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if (in != null)
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{
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in.close();
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}
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}
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catch (IOException ex)
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{
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log.error("调用in.close Exception, url=" + url + ",param=" + param, ex);
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}
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}
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return result.toString();
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}
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public static String sendSSLPost(String url, String param)
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{
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StringBuilder result = new StringBuilder();
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String urlNameString = url + "?" + param;
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try
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{
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log.info("sendSSLPost - {}", urlNameString);
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SSLContext sc = SSLContext.getInstance("SSL");
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sc.init(null, new TrustManager[] { new TrustAnyTrustManager() }, new java.security.SecureRandom());
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URL console = new URL(urlNameString);
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HttpsURLConnection conn = (HttpsURLConnection) console.openConnection();
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conn.setRequestProperty("accept", "*/*");
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conn.setRequestProperty("connection", "Keep-Alive");
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conn.setRequestProperty("user-agent", "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1;SV1)");
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conn.setRequestProperty("Accept-Charset", "utf-8");
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conn.setRequestProperty("contentType", "utf-8");
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conn.setDoOutput(true);
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conn.setDoInput(true);
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conn.setSSLSocketFactory(sc.getSocketFactory());
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conn.setHostnameVerifier(new TrustAnyHostnameVerifier());
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conn.connect();
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InputStream is = conn.getInputStream();
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BufferedReader br = new BufferedReader(new InputStreamReader(is));
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String ret = "";
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while ((ret = br.readLine()) != null)
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{
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if (ret != null && !"".equals(ret.trim()))
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{
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result.append(new String(ret.getBytes("ISO-8859-1"), "utf-8"));
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}
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}
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log.info("recv - {}", result);
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conn.disconnect();
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br.close();
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}
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catch (ConnectException e)
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{
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log.error("调用HttpUtils.sendSSLPost ConnectException, url=" + url + ",param=" + param, e);
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}
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catch (SocketTimeoutException e)
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{
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log.error("调用HttpUtils.sendSSLPost SocketTimeoutException, url=" + url + ",param=" + param, e);
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}
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catch (IOException e)
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{
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log.error("调用HttpUtils.sendSSLPost IOException, url=" + url + ",param=" + param, e);
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}
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catch (Exception e)
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{
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log.error("调用HttpsUtil.sendSSLPost Exception, url=" + url + ",param=" + param, e);
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}
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return result.toString();
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}
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private static class TrustAnyTrustManager implements X509TrustManager
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{
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@Override
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public void checkClientTrusted(X509Certificate[] chain, String authType)
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{
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}
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@Override
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public void checkServerTrusted(X509Certificate[] chain, String authType)
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{
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}
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@Override
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public X509Certificate[] getAcceptedIssuers()
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{
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return new X509Certificate[] {};
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}
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}
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private static class TrustAnyHostnameVerifier implements HostnameVerifier
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{
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@Override
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public boolean verify(String hostname, SSLSession session)
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{
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return true;
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}
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}
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/*
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*
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* 调用：
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* HttpUtil.post(talkUrl, accessToken,"application/json", param);
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*/
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public static String post(String requestUrl, String accessToken, String params)
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throws Exception {
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String contentType = "application/x-www-form-urlencoded";
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return post(requestUrl, accessToken, contentType, params);
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}
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public static String post(String requestUrl, String accessToken, String contentType, String params)
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throws Exception {
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String encoding = "UTF-8";
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if (requestUrl.contains("nlp")) {
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encoding = "GBK";
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}
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return post(requestUrl, accessToken, contentType, params, encoding);
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}
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public static String post(String requestUrl, String accessToken, String contentType, String params, String encoding)
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throws Exception {
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String url = requestUrl + "?access_token=" + accessToken;
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return postGeneralUrl(url, contentType, params, encoding);
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}
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public static String postGeneralUrl(String generalUrl, String contentType, String params, String encoding)
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throws Exception {
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URL url = new URL(generalUrl);
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// 打开和URL之间的连接
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HttpURLConnection connection = (HttpURLConnection) url.openConnection();
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connection.setRequestMethod("POST");
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// 设置通用的请求属性
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connection.setRequestProperty("Content-Type", contentType);
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connection.setRequestProperty("Connection", "Keep-Alive");
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connection.setUseCaches(false);
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connection.setDoOutput(true);
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connection.setDoInput(true);
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// 得到请求的输出流对象
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DataOutputStream out = new DataOutputStream(connection.getOutputStream());
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out.write(params.getBytes(encoding));
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out.flush();
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out.close();
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// 建立实际的连接
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connection.connect();
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// 获取所有响应头字段
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Map<String, List<String>> headers = connection.getHeaderFields();
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// 定义 BufferedReader输入流来读取URL的响应
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BufferedReader in = null;
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in = new BufferedReader(
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new InputStreamReader(connection.getInputStream(), encoding));
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String result = "";
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String getLine;
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while ((getLine = in.readLine()) != null) {
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result += getLine;
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}
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in.close();
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return result;
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}
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public static String getParamValue(String params, String key) {
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if (params == null || key == null || params.isEmpty() || key.isEmpty()) {
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return null;
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}
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// 将参数拆分为键值对
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String[] pairs = params.split("&");
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Map<String, String> paramMap = new HashMap<>();
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for (String pair : pairs) {
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String[] keyValue = pair.split("=", 2); // 防止值中含有 `=` 的情况
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if (keyValue.length == 2) {
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paramMap.put(keyValue[0].trim(), keyValue[1].trim());
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} else {
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paramMap.put(keyValue[0].trim(), ""); // 没有值的情况
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}
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}
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// 返回目标 key 对应的值
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return paramMap.get(key);
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}
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/**
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* 校验地址是否有效
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* @param url
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* @return
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*/
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public static boolean validateUrl(String url) {
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try {
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URL u = new URL(url);
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HttpURLConnection connection = (HttpURLConnection) u.openConnection();
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connection.setRequestMethod("HEAD");
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connection.setConnectTimeout(5000); // 设置连接超时时间为5秒
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connection.setReadTimeout(5000); // 设置读取超时时间为5秒
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int responseCode = connection.getResponseCode();
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// 检查响应码是否为200，或者重定向（3xx）后的最终响应码是否为200
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// 通常我们认为2xx都是成功的（如200、201、202等），3xx重定向我们通常认为也是有效的，因为资源存在只是位置变了
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// 但是注意，如果重定向次数过多，HttpURLConnection默认会处理3次，如果超过会抛异常，但我们这里只检查响应码
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return (responseCode >= 200 && responseCode < 400); // 2xx和3xx都认为有效
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} catch (Exception e) {
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return false;
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}
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}
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}
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