Https加密的实现

工作需要，要将原来的http连接改成https连接。

改成https连接首先需要服务器支持，服务器 支持https连接客户端才能连接成功。

具体https原理可以参考下面这几个连接

1. java官网对https加密连接的解释

http://docs.oracle.com/javase/7/docs/technotes/guides/security/jsse/JSSERefGuide.html#SecureConnSample

2. 官网指向的例子地址

http://docs.oracle.com/javase/7/docs/technotes/guides/security/jsse/samples/index.html

3. apache的地址

http://hc.apache.org/httpcomponents-client-4.5.x/tutorial/html/connmgmt.html#d5e449

4. apache例子地址

http://hc.apache.org/httpcomponents-client-ga/httpclient/examples/org/apache/http/examples/client/ClientCustomSSL.java

5. 博客中说的不错的地址

http://blog.csdn.net/kobejayandy/article/details/52433660

http://blog.csdn.net/dtlscsl/article/details/50118225

http://blog.csdn.net/llwszjj/article/details/36868177

http://blog.csdn.net/chw1989/article/details/7584995

http://410063005.iteye.com/blog/1751243

http://blog.csdn.net/rongyongfeikai2/article/details/41659353/

6.加密相关术语的官方解释

http://docs.oracle.com/javase/7/docs/technotes/guides/security/StandardNames.html#SSLContext

上面这些都是我在了解java开发https连接服务器觉得有用的链接，前4个都是英文的，这个最权威了，不过，对英文不好的人就难度有些大，

第5个都是相关博客总结的，可以帮助大家理解。

我在学习的过程写的代码：

其实是我抄的： 

代码来源是 http://fishhappy365.iteye.com/blog/963876

首先是服务器端的：

import java.io.BufferedReader;import java.io.FileInputStream;import java.io.InputStreamReader;import java.io.PrintWriter;import java.net.Socket;import java.security.KeyStore;import javax.net.ssl.KeyManagerFactory;import javax.net.ssl.SSLContext;import javax.net.ssl.SSLServerSocket;import javax.net.ssl.SSLServerSocketFactory;import javax.net.ssl.SSLSocket;/* * 打开命令行输入   keytool -genkey -keystore SSLKey -keyalg rsa -alias SSL * 第一个参数是要生成的证书的名字，第二个参数是证书的别名。rsa指明了我们使用的加密方法。 * 系统会要求输入证书发放者的信息，逐项输入即可。 */public class Main006_SSLServer {static int port = 8456; // 系统将要监听的端口号static SSLServerSocket server;/* * 构造函数 */public Main006_SSLServer() {}/* * @param port 监听的端口号 *  * @return 返回一个SSLServerSocket对象 */private static SSLServerSocket getServerSocket(int thePort) {SSLServerSocket s = null;try { String key = "C:/rsatemp/SSLKey"; // 证书的位置char keyStorePass[] = "123456".toCharArray(); // 证书密码（生成证书时输入的）char keyPassword[] = "123456".toCharArray(); // 证书别称所使用的主要密码 （生成证书时输入的）KeyStore ks = KeyStore.getInstance("JKS"); // 创建JKS密钥库ks.load(new FileInputStream(key), keyStorePass);// 创建管理JKS密钥库的X.509密钥管理器KeyManagerFactory kmf = KeyManagerFactory.getInstance("SunX509");kmf.init(ks, keyPassword);// 构造SSL环境，指定SSL版本为3.0，也可以使用TLSv1，但是SSLv3更加常用。SSLContext sslContext = SSLContext.getInstance("TLSv1");/* * 初始化SSL环境。第二个参数是告诉JSSE使用的可信任证书的来源， * 设置为null是从javax.net.ssl.trustStore中获得证书。 * 第三个参数是JSSE生成的随机数，这个参数将影响系统的安全性， 设置为null是个好选择，可以保证JSSE的安全性。 */sslContext.init(kmf.getKeyManagers(), null, null);// 根据上面配置的SSL上下文来产生SSLServerSocketFactory,与通常的产生方法不同SSLServerSocketFactory factory = sslContext.getServerSocketFactory();s = (SSLServerSocket) factory.createServerSocket(thePort);} catch (Exception e) {System.out.println(e);}return (s);}public static void main(String args[]) {try {server = getServerSocket(port);System.out.println("在" + port + "端口等待连接...");while (true) {SSLSocket socket = (SSLSocket) server.accept();// 将得到的socket交给CreateThread对象处理,主线程继续监听new CreateThread(socket);}} catch (Exception e) {System.out.println("main方法错误80:" + e);}}}/* * 内部类,获得主线程的socket连接,生成子线程来处理 */class CreateThread extends Thread {static BufferedReader in;static PrintWriter out;static Socket s;/* * 构造函数,获得socket连接,初始化in和out对象 */public CreateThread(Socket socket) {try {s = socket;out = new PrintWriter(s.getOutputStream(), true);in = new BufferedReader(new InputStreamReader(s.getInputStream(), "gb2312"));this.start(); // 开新线程执行run方法} catch (Exception e) {System.out.println(e);}}/* * 线程方法,处理socket传递过来的数据 */public void run() {try {String msg = in.readLine();System.out.println(msg);s.close();} catch (Exception e) {System.out.println(e);}}}

客户端的代码：

//把证书拷贝到java.home下/lib/security目录下，名字SSLKey改为jssecacerts，然后可以直接执行客户端：//http://hi.baidu.com/sunjoe/blog/item/629daa3ef802edff828b13e6.htmlimport java.io.PrintWriter;  import java.net.Socket;  import javax.net.ssl.SSLSocketFactory; public class Main006_SSLClient {static int port = 8456;        public static void main(String args[]) {          try {              SSLSocketFactory factory = (SSLSocketFactory) SSLSocketFactory                      .getDefault();                Socket s = factory.createSocket("127.0.0.1", port);                PrintWriter out = new PrintWriter(s.getOutputStream(), true);              out.println("Hello ren zha");              out.close();              s.close();          } catch (Exception e) {              System.out.println(e);          }      }} 

下面是我使用apache的httpClient模拟客户端请求的代码

package com.chinasofti.vtmsln.httpclient.bean;import java.security.cert.CertificateException;import java.security.cert.X509Certificate;import javax.net.ssl.SSLContext;import javax.net.ssl.TrustManager;import javax.net.ssl.X509TrustManager;import org.apache.http.HttpEntity;import org.apache.http.client.methods.HttpPost;import org.apache.http.conn.ssl.NoopHostnameVerifier;import org.apache.http.conn.ssl.SSLConnectionSocketFactory;import org.apache.http.entity.ContentType;import org.apache.http.entity.mime.MultipartEntityBuilder;import org.apache.http.entity.mime.content.StringBody;import org.apache.http.impl.client.CloseableHttpClient;import org.apache.http.impl.client.HttpClients;public class httpsClientTest {public static void main(String[] args) throws Exception {X509TrustManager x509TrustManager = new X509TrustManager(){@Overridepublic void checkClientTrusted(X509Certificate[] arg0, String arg1) throws CertificateException {}@Overridepublic void checkServerTrusted(X509Certificate[] arg0, String arg1) throws CertificateException {}@Overridepublic X509Certificate[] getAcceptedIssuers() {return new X509Certificate[] {};}};SSLContext sslContext = SSLContext.getInstance("SSL");sslContext.init(null, new TrustManager[]{x509TrustManager}, null); SSLConnectionSocketFactory ssf = new SSLConnectionSocketFactory(sslContext,                new String[] { "TLSv1" },                null,                NoopHostnameVerifier.INSTANCE); /*CloseableHttpClient httpClient =  HttpClients.custom()            .setSSLHostnameVerifier(SSLConnectionSocketFactory.ALLOW_ALL_HOSTNAME_VERIFIER)            .setSSLSocketFactory(ssf).build();*/ CloseableHttpClient httpClient = new HttpClientFactoryBean().getObject(); HttpPost httppost = new HttpPost("https://www.cctv.com"); StringBody userPwd = new StringBody("password", ContentType.TEXT_PLAIN); StringBody userId = new StringBody("monitor01", ContentType.TEXT_PLAIN); StringBody userType = new StringBody("user", ContentType.TEXT_PLAIN); HttpEntity reqEntity = MultipartEntityBuilder.create()                 .addPart("userPwd", userPwd).addPart("userId", userId).addPart("userType", userType)                 .build(); httppost.setEntity(reqEntity);  httpClient.execute(httppost);      }}

当然，报错也会有

关于这个报错

Received fatal alert: handshake_failure through SSLHandshakeException

下面的地址解释的比较详细：

https://stackoverflow.com/questions/6353849/received-fatal-alert-handshake-failure-through-sslhandshakeexception

以上就是我对https的学习过程觉得有价值的资料，希望对看到的人有帮助。