HttpClient4.x调用指定证书访问https

偏执的太偏执、 2022-08-10 06:13 174阅读 0赞

代码如下：

package com.lala.http;
    
    import java.io.FileInputStream;
    import java.io.InputStream;
    import java.security.KeyStore;
    
    import javax.net.ssl.SSLContext;
    import javax.net.ssl.TrustManagerFactory;
    
    import org.apache.http.HttpEntity;
    import org.apache.http.client.methods.CloseableHttpResponse;
    import org.apache.http.client.methods.HttpGet;
    import org.apache.http.impl.client.CloseableHttpClient;
    import org.apache.http.impl.client.HttpClientBuilder;
    import org.apache.http.impl.client.HttpClients;
    import org.apache.http.util.EntityUtils;
    
    public class Http 
    {
    	public static SSLContext getSSLContext() throws Exception
    	{
    		KeyStore ks = KeyStore.getInstance(KeyStore.getDefaultType());
    		InputStream input = new FileInputStream("d:/tmp/trust2.jks");
    		ks.load(input, "123456".toCharArray());
    		
    		TrustManagerFactory tmf = TrustManagerFactory.getInstance("SunX509");
    		tmf.init(ks);
    		
    		SSLContext context = SSLContext.getInstance("TLSv1.2");
    		//这里只指定了受信任的证书（单向认证），如果是双向认证的话，则第一个参数不能为null
    		context.init(null, tmf.getTrustManagers(), null);
    		return context;
    	}
    	public static void main(String[] args) throws Exception
    	{
    		HttpClientBuilder builder = HttpClients.custom();
    		builder.setSSLContext(getSSLContext());
    		
    		CloseableHttpClient httpclient = builder.build();
    		HttpGet httpget = new HttpGet("https://127.0.0.1:4488");
    		CloseableHttpResponse response = httpclient.execute(httpget);
    		
    		HttpEntity entity = response.getEntity();
    		String body = EntityUtils.toString(entity);
    		System.out.println(body);
    		response.close();
    		httpclient.close();
    	}
    }