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转自:
http://www.java265.com/JavaCourse/202204/2939.html
HttpClient是一个java语言编写的包,
我们使用HttpClient可以非常方便的发送Http请求
它使基于Http协议请求内容变得非常简单
HttpClient是Apache Jakarta Common下的子项目 它里面封装了很多使用http协议访问的工具,可用于高效访问http
下文笔者讲述基于HttpClient进行ss的示例分享,如下所示:- HttpClient进行ssl连接的示例分享,如下所示
- 实现思路:
- 1.定义一个keyStore对象,并读取证书信息
- 2.声明一个SSLContext
- 3.定义一个SSLConnectionSocketFactory工厂
- 4.定义一个HttpGet请求体
- 5.execute执行运行
- 6.获取返回信息
- 7.关闭连接
复制代码- /**
- * HttpClient连接SSL
- */
- public void ssl() {
- CloseableHttpClient httpclient = null;
- try {
- KeyStore trustStore = KeyStore.getInstance(KeyStore.getDefaultType());
- FileInputStream instream = new FileInputStream(new File("d:\\tomcat.keystore"));
- try {
- // 加载keyStore d:\\tomcat.keystore
- trustStore.load(instream, "123456".toCharArray());
- } catch (CertificateException e) {
- e.printStackTrace();
- } finally {
- try {
- instream.close();
- } catch (Exception ignore) {
- }
- }
- // 相信自己的CA和所有自签名的证书
- SSLContext sslcontext = SSLContexts.custom().loadTrustMaterial(trustStore, new TrustSelfSignedStrategy()).build();
- // 只允许使用TLSv1协议
- SSLConnectionSocketFactory sslsf = new SSLConnectionSocketFactory(sslcontext, new String[] { "TLSv1" }, null,
- SSLConnectionSocketFactory.BROWSER_COMPATIBLE_HOSTNAME_VERIFIER);
- httpclient = HttpClients.custom().setSSLSocketFactory(sslsf).build();
- // 创建http请求(get方式)
- HttpGet httpget = new HttpGet("https://www.java265.com");
- System.out.println("executing request" + httpget.getRequestLine());
- CloseableHttpResponse response = httpclient.execute(httpget);
- try {
- HttpEntity entity = response.getEntity();
- System.out.println("----------------------------------------");
- System.out.println(response.getStatusLine());
- if (entity != null) {
- System.out.println("Response content length: " + entity.getContentLength());
- System.out.println(EntityUtils.toString(entity));
- EntityUtils.consume(entity);
- }
- } finally {
- response.close();
- }
- } catch (ParseException e) {
- e.printStackTrace();
- } catch (IOException e) {
- e.printStackTrace();
- } catch (KeyManagementException e) {
- e.printStackTrace();
- } catch (NoSuchAlgorithmException e) {
- e.printStackTrace();
- } catch (KeyStoreException e) {
- e.printStackTrace();
- } finally {
- if (httpclient != null) {
- try {
- httpclient.close();
- } catch (IOException e) {
- e.printStackTrace();
- }
- }
- }
- }
复制代码 参考资料:http://www.java265.com/JavaCourse/202204/2934.html HttpUtils工具类
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