【java】http请求工具包

package com.ruoyi.common.utils.http;

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.OutputStreamWriter;
import java.io.PrintWriter;
import java.net.ConnectException;
import java.net.HttpURLConnection;
import java.net.SocketTimeoutException;
import java.net.URL;
import java.net.URLConnection;
import java.security.cert.X509Certificate;
import javax.net.ssl.HostnameVerifier;
import javax.net.ssl.HttpsURLConnection;
import javax.net.ssl.SSLContext;
import javax.net.ssl.SSLSession;
import javax.net.ssl.TrustManager;
import javax.net.ssl.X509TrustManager;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

/**

通用http发送方法
@author ruoyi
*/
public class HttpUtils
{

private static final Logger log = LoggerFactory.getLogger(HttpUtils.class);

/**
- 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)
  {
  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()));
  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.getMessage());
  }
  catch (SocketTimeoutException e)
  {
  log.error(“调用HttpUtils.sendGet SocketTimeoutException, url=” + url + “,param=” + param, e.getMessage());
  }
  catch (IOException e)
  {
  log.error(“调用HttpUtils.sendGet IOException, url=” + url + “,param=” + param, e.getMessage());
  }
  catch (Exception e)
  {
  log.error(“调用HttpsUtil.sendGet Exception, url=” + url + “,param=” + param, e.getMessage());
  }
  finally
  {
  try
  {
  if (in != null)
  {
  in.close();
  }
  }
  catch (Exception ex)
  {
  log.error(“调用in.close Exception, url=” + url + “,param=” + param, ex.getMessage());
  }
  }
  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
  {
  String urlNameString = url + “?” + param;
  log.info(“sendPost - {}”, urlNameString);
  URL realUrl = new URL(urlNameString);
  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 InputStreamReader(conn.getInputStream(), “utf-8”));
  String line;
  while ((line = in.readLine()) != null)
  {
  result.append(line);
  }
  log.info(“recv - {}”, result);
  }
  catch (ConnectException e)
  {
  log.error(“调用HttpUtils.sendPost ConnectException, url=” + url + “,param=” + param, e.getMessage());
  }
  catch (SocketTimeoutException e)
  {
  log.error(“调用HttpUtils.sendPost SocketTimeoutException, url=” + url + “,param=” + param, e.getMessage());
  }
  catch (IOException e)
  {
  log.error(“调用HttpUtils.sendPost IOException, url=” + url + “,param=” + param, e.getMessage());
  }
  catch (Exception e)
  {
  log.error(“调用HttpsUtil.sendPost Exception, url=” + url + “,param=” + param, e.getMessage());
  }
  finally
  {
  try
  {
  if (out != null)
  {
  out.close();
  }
  if (in != null)
  {
  in.close();
  }
  }
  catch (IOException ex)
  {
  log.error(“调用in.close Exception, url=” + url + “,param=” + param, ex.getMessage());
  }
  }
  return result.toString();
  }
public static String sendSSLPost(String url, String param)
{
StringBuilder result = new StringBuilder();
String urlNameString = url + “?” + param;
try
{
log.info(“sendSSLPost - {}”, urlNameString);
SSLContext sc = SSLContext.getInstance(“SSL”);
sc.init(null, new TrustManager[] { new TrustAnyTrustManager() }, new java.security.SecureRandom());
URL console = new URL(urlNameString);
HttpsURLConnection conn = (HttpsURLConnection) console.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);
```
     conn.setSSLSocketFactory(sc.getSocketFactory());
     conn.setHostnameVerifier(new TrustAnyHostnameVerifier());
     conn.connect();
     InputStream is = conn.getInputStream();
     BufferedReader br = new BufferedReader(new InputStreamReader(is));
     String ret = "";
     while ((ret = br.readLine()) != null)
     {
         if (ret != null && !ret.trim().equals(""))
         {
             result.append(new String(ret.getBytes("ISO-8859-1"), "utf-8"));
         }
     }
     log.info("recv - {}", result);
     conn.disconnect();
     br.close();
 }
 catch (ConnectException e)
 {
     log.error("调用HttpUtils.sendSSLPost ConnectException, url=" + url + ",param=" + param, e.getMessage());
 }
 catch (SocketTimeoutException e)
 {
     log.error("调用HttpUtils.sendSSLPost SocketTimeoutException, url=" + url + ",param=" + param, e.getMessage());
 }
 catch (IOException e)
 {
     log.error("调用HttpUtils.sendSSLPost IOException, url=" + url + ",param=" + param, e.getMessage());
 }
 catch (Exception e)
 {
     log.error("调用HttpsUtil.sendSSLPost Exception, url=" + url + ",param=" + param, e.getMessage());
 }
 return result.toString();
```
}

private static class TrustAnyTrustManager implements X509TrustManager
{
@Override
public void checkClientTrusted(X509Certificate[] chain, String authType)
{
}
```
 @Override
 public void checkServerTrusted(X509Certificate[] chain, String authType)
 {
 }

 @Override
 public X509Certificate[] getAcceptedIssuers()
 {
     return new X509Certificate[] {};
 }
```
}

private static class TrustAnyHostnameVerifier implements HostnameVerifier
{
@Override
public boolean verify(String hostname, SSLSession session)
{
return true;
}
}

/**
*@desc:
*@param postData 请求参数（json格式）
*@param postUrl 请求的URL地址
*@return 返回数据（string格式）
*/
public static String JsonSMS(String postData, String postUrl) {
try {
//发送POST请求
URL url = new URL(postUrl);
HttpURLConnection conn = (HttpURLConnection) url.openConnection();
conn.setRequestMethod(“POST”);
conn.setRequestProperty(“Content-Type”, “application/json”);
conn.setRequestProperty(“Connection”, “Keep-Alive”);
conn.setUseCaches(false);
conn.setDoOutput(true);
conn.setRequestProperty(“Content-Length”, “” + postData.length());
OutputStreamWriter out = new OutputStreamWriter(conn.getOutputStream(), “UTF-8”);
out.write(postData);
out.flush();
out.close();
//获取响应状态
if (conn.getResponseCode() != HttpURLConnection.HTTP_OK) {
System.out.println(“connect failed!”);
return “”;
}
//获取响应内容体
String line, result = “”;
BufferedReader in = new BufferedReader(new InputStreamReader(conn.getInputStream(), “utf-8”));
while ((line = in.readLine()) != null) {
result += line + “\n”;
}
in.close();
return result;
} catch (IOException e) {
e.printStackTrace(System.out);
}
return “”;
}
}

【java】http请求工具包

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