使用RestTemplate访问https实现SSL请求操作

使用RestTemplate访问https实现SSL请求操作

目录1、添加HttpsClientRequestFactory工具类2、修改RestTemplate3、访问https，抛出的异常方案一：替换jce包方案二：升级 JDK到1.8版本（推荐方式）

方法1： 用java生成证书，不建议，移植性差。

方法2： 将RestTemplate改为https请求。

1、添加HttpsClientRequestFactory工具类

import org.springframework.http.client.SimpleClientHttpRequestFactory;

import javax-.ssl.*;

import java.io.IOException;

import java-.HttpURLConnection;

import java-.InetAddress;

import java-.Socket;

import java.security.cert.X509Certificate;

/**

* TLS的三个作用：

* （1）身份认证

* 通过证书认证来确认对方的身份，防止中间人攻击

* （2）数据私密性

* 使用对称性密钥加密传输的数据，由于密钥只有客户端/服务端有，其他人无法窥探。

* （3）数据完整性

* 使用摘要算法对报文进行计算，收到消息后校验该值防止数据被篡改或丢失。

*

* 使用RestTemplate进行HTTPS请求访问：

* private static RestTemplate restTemplate = new RestTemplate(new HttpsClientRequestFactory());

*

*/

public class HttpsClientRequestFactory extends SimpleClientHttpRequestFactory {

@Override

protected void prepareConnection(HttpURLConnection connection, String httpMethod) {

try {

if (!(connection instanceof HttpsURLConnection)) {

throw new RuntimeException("An instance of HttpsURLConnection is expected");

}

HttpsURLConnection httpsConnection = (HttpsURLConnection) connection;

TrustManager[] trustAllCerts = new TrustManager[]{

new X509TrustManager() {

@Override

public java.security.cert.X509Certificate[] getAcceptedIssuers() {

return null;

}

@Override

public void checkClientTrusted(X509Certificate[] certs, String authType) {

}

@Override

public void checkServerTrusted(X509Certificate[] certs, String authType) {

}

}

};

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

sslContext.init(null, trustAllCerts, new java.security.SecureRandom());

httpsConnection.setSSLSocketFactory(new MyCustomSSLSocketFactory(sslContext.getSocketFactory()));

httpsConnection.setHostnameVerifier(new HostnameVerifier() {

@Override

public boolean verify(String s, SSLSession sslSession) {

return true;

}

});

super.prepareConnection(httpsConnection, httpMethod);

} catch (Exception e) {

e.printStackTrace();

}

}

private static class MyCustomSSLSocketFactory extends SSLSocketFactory {

private final SSLSocketFactory delegate;

public MyCustomSSLSocketFactory(SSLSocketFactory delegate) {

this.delegate = delegate;

}

// 返回默认启用的密码套件。除非一个列表启用，对SSL连接的握手会使用这些密码套件。

// 这些默认的服务的最低质量要求保密保护和服务器身份验证

@Override

public String[] getDefaultCipherSuites() {

return delegate.getDefaultCipherSuites();

}

// 返回的密码套件可用于SSL连接启用的名字

@Override

public String[] getSupportedCipherSuites() {

return delegate.getSupportedCipherSuites();

}

@Override

public Socket createSocket(final Socket socket, final String host, final int port,

final boolean autoClose) throws IOException {

final Socket underlyingSocket = delegate.createSocket(socket, host, port, autoClose);

return overrideProtocol(underlyingSocket);

}

@Override

public Socket createSocket(final String host, final int port) throws IOException {

final Socket underlyingSocket = delegate.createSocket(host, port);

return overrideProtocol(underlyingSocket);

}

@Override

public Socket createSocket(final String host, final int port, final InetAddress localAddress,

final int localPort) throws

IOException {

final Socket underlyingSocket = delegate.createSocket(host, port, localAddress, localPort);

return overrideProtocol(underlyingSocket);

}

@Override

public Socket createSocket(final InetAddress host, final int port) throws IOException {

final Socket underlyingSocket = delegate.createSocket(host, port);

return overrideProtocol(underlyingSocket);

}

@Override

public Socket createSocket(final InetAddress host, final int port, final InetAddress localAddress,

final int localPort) throws

IOException {

final Socket underlyingSocket = delegate.createSocket(host, port, localAddress, localPort);

return overrideProtocol(underlyingSocket);

}

private Socket overrideProtocol(final Socket socket) {

if (!(socket instanceof SSLSocket)) {

throw new RuntimeException("An instance of SSLSocket is expected");

}

//((SSLSocket) socket).setEnabledProtocols(new String[]{"TLSv1.2"});

((SSLSocket) socket).setEnabledProtocols(new String[]{"TLSv1", "TLSv1.1", "TLSv1.2"});

return socket;

}

}

}

注意：服务端TLS版本要和客户端工具类中定义的一致。（TLSv1.2）

2、修改RestTemplate

在使用的时候，将

private static RestTemplate restTemplate = new RestTemplate();

改为：

private static RestTemplate restTemplate = new RestTemplate(new HttpsClientRequestFactory());

其他代码不变。

也可使用注入的方式：

@Configuration

public class ConfigBean {

@Bean

public RestTemplate getRestTemplate() {

return new RestTemplate(new HttpsClientRequestFactory());

}

}

3、访问https，抛出的异常

javax-.ssl.SSLHandshakeException: Received fatal alert: handshake_failure解决方案

因为jdk中jce的安全机制导致报的错，需要去oracle官网-对应的jce包替换jdk中的jce包。

方案一：替换jce包

目录 %JAVA_HOME%\jre\lib\security里的local_policy.jar,US_export_policy.jar

JDK7 http://oracle.com/technetwork/java/javase/downloads/jce-7-download-432124.html

JDK8 http://oracle.com/technetwork/java/javase/downloads/jce8-download-2133166.html

// pub1:/home/myron/jdk1.7.0_80 % cd $JAVA_HOME/jre/lib/security/ //jce所在jdk的路径

US_export_policy.jar

local_policy.jar

方案二：升级 JDK到1.8版本（推荐方式）

// pub1:/home/myron % vi .cshrc

setenv JAVA_HOME /home/myron/jdk1.8.0_211

// pub1:/home/myron % source .cshrc

// pub1:/home/myron % java -version

java version "1.8.0_211"

版权声明：本文内容由网络用户投稿，版权归原作者所有，本站不拥有其著作权，亦不承担相应法律责任。如果您发现本站中有涉嫌抄袭或描述失实的内容，请联系我们jiasou666@gmail.com 处理，核实后本网站将在24小时内删除侵权内容。