http java ssl_Java进行http请求工具类代码（支持https）

packagecom.guyezhai.modules.utils;importjava.io.BufferedReader;importjava.io.DataOutputStream;importjava.io.IOException;importjava.io.InputStreamReader;importjava.net.HttpURLConnection;importjava.net.URL;importjava.net.URLEncoder;importjava.security.cert.X509Certificate;importjava.util.Map;importjava.util.Map.Entry;importjavax.net.ssl.HostnameVerifier;importjavax.net.ssl.HttpsURLConnection;importjavax.net.ssl.SSLContext;importjavax.net.ssl.SSLSession;importjavax.net.ssl.X509TrustManager;public classHttpUtils {/*** POST请求远程http页面

*

*@paramcontentUrl

*@paramparams

*@return

*/

public static String post(String contentUrl, Mapparams) {

StringBuilder contentBuilder= newStringBuilder();

HttpURLConnection connection= null;

DataOutputStream out= null;

BufferedReader reader= null;try{

connection= (HttpURLConnection) newURL(contentUrl).openConnection();//设置Socket超时

connection.setConnectTimeout(10000);

connection.setReadTimeout(20000);//Post 请求不能使用缓存

connection.setUseCaches(false);//URLConnection.setInstanceFollowRedirects是成员函数，仅作用于当前函数

connection.setInstanceFollowRedirects(true);

connection.setRequestProperty("Content-Type", "application/x-www-form-urlencoded");

connection.setRequestMethod("POST");

connection.setDoOutput(true);//是否输入参数//要注意的是connection.getOutputStream会隐含的进行connect

connection.connect();

out= newDataOutputStream(connection.getOutputStream());

StringBuilder parambBuilder= newStringBuilder();if (params != null) {for (Entrye : params.entrySet()) {

parambBuilder.append(e.getKey()).append("=").append(URLEncoder.encode(String.valueOf(e.getValue()), "UTF-8")).append("&");

}

parambBuilder.deleteCharAt(parambBuilder.length()- 1);

}//DataOutputStream.writeBytes将字符串中的16位的unicode字符以8位的字符形式写道流里面

out.writeBytes(parambBuilder.toString());

out.flush();

reader= new BufferedReader(new InputStreamReader(connection.getInputStream(), "UTF-8"));int buffer = 0;while ((buffer = reader.read()) != -1) {

contentBuilder.append((char) buffer);

}

}catch(Exception e) {//异常处理

} finally{if (out != null) {try{

out.close();

}catch(IOException e1) {

e1.printStackTrace();

}

}if (reader != null) {try{

reader.close();

}catch(IOException e1) {

e1.printStackTrace();

}

}if (connection != null) {

connection.disconnect();

}

}returncontentBuilder.toString();

}/*** Get方法请求

*

*@paramcontentUrl

*@return

*/

public staticString get(String contentUrl) {

StringBuilder contentBuilder= newStringBuilder();

HttpURLConnection connection= null;

BufferedReader reader= null;try{

connection= (HttpURLConnection) newURL(contentUrl).openConnection();//设置Socket超时

connection.setConnectTimeout(10000);

connection.setReadTimeout(20000);

connection.setRequestMethod("GET");

connection.connect();

reader= new BufferedReader(new InputStreamReader(connection.getInputStream(), "UTF-8"));int buffer = 0;while ((buffer = reader.read()) != -1) {

contentBuilder.append((char) buffer);

}

}catch(Exception e) {//异常处理

} finally{if (reader != null) {try{

reader.close();

}catch(IOException e1) {

e1.printStackTrace();

}

}if (connection != null) {

connection.disconnect();

}

}returncontentBuilder.toString();

}/*** POST请求远程https页面

*

*@paramcontentUrl

*@paramparams

*@return

*/

public static String postHttps(String contentUrl, Mapparams) {

StringBuilder contentBuilder= newStringBuilder();

HttpsURLConnection connection= null;

DataOutputStream out= null;

BufferedReader reader= null;try{

HostnameVerifier hnv= newHostnameVerifier() {

@Overridepublic booleanverify(String hostname, SSLSession session) {return true;

}

};

X509TrustManager trustManager= newX509TrustManager() {

@OverridepublicX509Certificate[] getAcceptedIssuers() {return null;

}

@Overridepublic voidcheckServerTrusted(X509Certificate[] chain, String authType) {

}

@Overridepublic voidcheckClientTrusted(X509Certificate[] chain, String authType) {

}

};

X509TrustManager[] xtmArray= newX509TrustManager[] { trustManager };

SSLContext sslContext= SSLContext.getInstance("TLS");

sslContext.init(null, xtmArray, newjava.security.SecureRandom());if (sslContext != null) {

HttpsURLConnection.setDefaultSSLSocketFactory(sslContext.getSocketFactory());

}

HttpsURLConnection.setDefaultHostnameVerifier(hnv);

connection= (HttpsURLConnection) newURL(contentUrl).openConnection();//设置Socket超时

connection.setConnectTimeout(10000);

connection.setReadTimeout(20000);//Post 请求不能使用缓存

connection.setUseCaches(false);//URLConnection.setInstanceFollowRedirects是成员函数，仅作用于当前函数

connection.setInstanceFollowRedirects(true);

connection.setRequestProperty("Content-Type", "application/x-www-form-urlencoded");

connection.setRequestMethod("POST");

connection.setDoOutput(true);//是否输入参数

connection.connect();

out= newDataOutputStream(connection.getOutputStream());

StringBuilder parambBuilder= newStringBuilder();if (params != null) {for (Entrye : params.entrySet()) {

parambBuilder.append(e.getKey()).append("=").append(URLEncoder.encode(String.valueOf(e.getValue()), "UTF-8")).append("&");

}

parambBuilder.deleteCharAt(parambBuilder.length()- 1);

}//DataOutputStream.writeBytes将字符串中的16位的unicode字符以8位的字符形式写道流里面

out.writeBytes(parambBuilder.toString());

out.flush();

reader= new BufferedReader(new InputStreamReader(connection.getInputStream(), "UTF-8"));int buffer = 0;while ((buffer = reader.read()) != -1) {

contentBuilder.append((char) buffer);

}

}catch(Exception e) {//异常处理

} finally{if (out != null) {try{

out.close();

}catch(IOException e1) {

e1.printStackTrace();

}

}if (reader != null) {try{

reader.close();

}catch(IOException e1) {

e1.printStackTrace();

}

}if (connection != null) {

connection.disconnect();

}

}returncontentBuilder.toString();

}

}