一、因爲在使用https發送請求的時候會涉及,驗證方式。但是這種方式在使用的時候很不方便。特別是在請求外部接口的時候,所以這我寫了一個跳過驗證的方式。(供參考)
二、加入包,這裏用的是commons-httpclient 3.1 的包。一般請求採用最新的httpclient4.5就可以了
<dependency>
<groupId>commons-httpclient</groupId>
<artifactId>commons-httpclient</artifactId>
<version>3.1</version>
</dependency>
三、這裏我們實現3個類
1、MyX509TrustManager(這個方法直接實現X509TrustManager,X509TrustManager在javax.net.ssl.X509TrustManager裏面)
這裏直接實現不用改任何東西
import java.security.cert.CertificateException;
import java.security.cert.X509Certificate;
import javax.net.ssl.X509TrustManager;
public class MyX509TrustManager implements X509TrustManager {
/* (non-Javadoc)
* @see javax.net.ssl.X509TrustManager#checkClientTrusted(java.security.cert.X509Certificate[], java.lang.String)
*/
public void checkClientTrusted(X509Certificate[] arg0, String arg1)
throws CertificateException {
}
/* (non-Javadoc)
* @see javax.net.ssl.X509TrustManager#checkServerTrusted(java.security.cert.X509Certificate[], java.lang.String)
*/
public void checkServerTrusted(X509Certificate[] arg0, String arg1)
throws CertificateException {
}
/* (non-Javadoc)
* @see javax.net.ssl.X509TrustManager#getAcceptedIssuers()
*/
public X509Certificate[] getAcceptedIssuers() {
return null;
}
}
2、MySecureProtocolSocketFactory(這裏我們需要用到SSLContext,還需要改寫一個實現SecureProtocolSocketFactory的方法)
import java.io.IOException;
import java.net.InetAddress;
import java.net.Socket;
import java.net.UnknownHostException;
import javax.net.ssl.SSLContext;
import javax.net.ssl.TrustManager;
import org.apache.commons.httpclient.ConnectTimeoutException;
import org.apache.commons.httpclient.HttpClientError;
import org.apache.commons.httpclient.params.HttpConnectionParams;
import org.apache.commons.httpclient.protocol.ControllerThreadSocketFactory;
import org.apache.commons.httpclient.protocol.SecureProtocolSocketFactory;
public class MySecureProtocolSocketFactory implements SecureProtocolSocketFactory {
//這裏添加一個屬性,主要目的就是來獲取ssl跳過驗證
private SSLContext sslContext = null;
/**
* Constructor for MySecureProtocolSocketFactory.
*/
public MySecureProtocolSocketFactory() {
}
/**
* 這個創建一個獲取SSLContext的方法,導入MyX509TrustManager進行初始化
* @return
*/
private static SSLContext createEasySSLContext() {
try {
SSLContext context = SSLContext.getInstance("SSL");
context.init(null, new TrustManager[] { new MyX509TrustManager() },
null);
return context;
} catch (Exception e) {
throw new HttpClientError(e.toString());
}
}
/**
* 判斷獲取SSLContext
* @return
*/
private SSLContext getSSLContext() {
if (this.sslContext == null) {
this.sslContext = createEasySSLContext();
}
return this.sslContext;
}
//後面的方法基本上就是帶入相關參數就可以了
/*
* (non-Javadoc)
*
* @see org.apache.commons.httpclient.protocol.ProtocolSocketFactory#createSocket(java.lang.String,
* int, java.net.InetAddress, int)
*/
public Socket createSocket(String host, int port, InetAddress clientHost,int clientPort) throws IOException, UnknownHostException {
return getSSLContext().getSocketFactory().createSocket(host, port,clientHost, clientPort);
}
/*
* (non-Javadoc)
*
* @see org.apache.commons.httpclient.protocol.ProtocolSocketFactory#createSocket(java.lang.String,
* int, java.net.InetAddress, int,
* org.apache.commons.httpclient.params.HttpConnectionParams)
*/
public Socket createSocket(final String host, final int port,final InetAddress localAddress, final int localPort,
final HttpConnectionParams params) throws IOException,UnknownHostException, ConnectTimeoutException {
if (params == null) {
throw new IllegalArgumentException("Parameters may not be null");
}
int timeout = params.getConnectionTimeout();
if (timeout == 0) {
return createSocket(host, port, localAddress, localPort);
} else {
return ControllerThreadSocketFactory.createSocket(this, host, port,localAddress, localPort, timeout);
}
}
/*
* (non-Javadoc)
*
* @see SecureProtocolSocketFactory#createSocket(java.lang.String,int)
*/
public Socket createSocket(String host, int port) throws IOException,UnknownHostException {
return getSSLContext().getSocketFactory().createSocket(host, port);
}
/*
* (non-Javadoc)
*
* @see SecureProtocolSocketFactory#createSocket(java.net.Socket,java.lang.String,int,boolean)
*/
public Socket createSocket(Socket socket, String host, int port,boolean autoClose) throws IOException, UnknownHostException {
return getSSLContext().getSocketFactory().createSocket(socket, host,port, autoClose);
}
}
3、然後就是httpclient了,這裏實現的方式很單間了,只要聲明MySecureProtocolSocketFactory加入就可以了Protocol
import org.apache.commons.httpclient.methods.GetMethod;
import org.apache.commons.httpclient.protocol.Protocol;
import org.apache.commons.httpclient.protocol.ProtocolSocketFactory;
/*
* 利用HttpClient進行post請求的工具類
*/
public class HttpClientUtil {
public static String doGet(String url) throws Exception {
//聲明
ProtocolSocketFactory fcty = new MySecureProtocolSocketFactory();
//加入相關的https請求方式
Protocol.registerProtocol("https", new Protocol("https", fcty, 443));
//發送請求即可
org.apache.commons.httpclient.HttpClient httpclient = new org.apache.commons.httpclient.HttpClient();
GetMethod httpget = new GetMethod(url);
System.out.println("======url:" + url);
try {
httpclient.executeMethod(httpget);
return httpget.getResponseBodyAsString();
} catch (Exception ex) {
ex.printStackTrace();
throw new Exception(ex.getMessage());
} finally {
httpget.releaseConnection();
}
}
}
四、這裏基本上就完成了,在會用的時候只要聲明MySecureProtocolSocketFactory加入就可以了Protocol,然後就可以實現驗證的跳過過了