使用 Https 调用 https 接口

最近公司让用 Java 调用一个国外的接口，打开文档一看 要使用 https 调用 https 接口。弄了几天终于弄的差不多了。

首先配置本地单向 https

1.生成安全证书（个人学习可以使用工具生成，而如果是公司的则另当别论了）
这个网上一大堆教程

2.配置tomcat 服务器

<Connector port="8443" protocol="HTTP/1.1" SSLEnabled="true"                 maxThreads="150" scheme="https" secure="true"                 clientAuth="false" sslProtocol="TLS"                 keystoreFile="F:\tomcat.keystore"                 keystorePass="tomcat"                 ciphers="tomcat"                 /> 

手动复制，端口号可修改

3.修改 web.xml 配置文件

<security-constraint>            <!-- Authorization setting for SSL -->            <web-resource-collection >                <web-resource-name >SSL</web-resource-name>                <url-pattern>/*</url-pattern>            </web-resource-collection>            <user-data-constraint>                <transport-guarantee>CONFIDENTIAL</transport-guarantee>            </user-data-constraint>     </security-constraint>  

上面的是针对所有请求转化的，有具体需要自行百度

完成上面的部分以后就可以使用 https 访问你自己的 action , jsp 什么的了。

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调用 https 第三方接口

1. 配置 SSLClient ，让它继承 DefaultHttpClient，具体代码如下：

 public SSLClient() throws Exception{          super();          SSLContext ctx = SSLContext.getInstance("TLS");          X509TrustManager tm = new X509TrustManager() {                  @Override                  public void checkClientTrusted(X509Certificate[] chain,                          String authType) throws CertificateException {                  }                  @Override                  public void checkServerTrusted(X509Certificate[] chain,                          String authType) throws CertificateException {                  }                  @Override                  public X509Certificate[] getAcceptedIssuers() {                      return null;                  }          };          ctx.init(null, new TrustManager[]{tm}, null);          SSLSocketFactory ssf = new SSLSocketFactory(ctx,SSLSocketFactory.ALLOW_ALL_HOSTNAME_VERIFIER);          ClientConnectionManager ccm = this.getConnectionManager();          SchemeRegistry sr = ccm.getSchemeRegistry();          sr.register(new Scheme("https", 443, ssf));      }  

然后我们就可以愉快的使用 https 了，举一个例子，我们使用 httpClient 进行文件和其它数据的上传

//传递图片到 April 官网上 左边为文件名 ，后边为文件路径    public static String upPicToApril(String filename , String file ){        String url = "******";//url         //1:创建一个httpclient对象       HttpClient httpclient = null;       HttpPost httppost = null ;       Charset charset = Charset.forName("UTF-8");//设置编码       String author = "Basic " + Base64.encode(("username:password").getBytes());       String resString = null ;       try {        try {                httpclient = new SSLClient();                httpclient.getParams().setParameter(CoreConnectionPNames.CONNECTION_TIMEOUT,600000);                httpclient.getParams().setParameter(CoreConnectionPNames.SO_TIMEOUT,900000);            } catch (Exception e) {                // TODO Auto-generated catch block                e.printStackTrace();            }           //2：创建http的发送方式对象，是GET还是post        httppost = new HttpPost(url);        httppost.setHeader("Authorization", author);        httppost.setHeader("user-agent", "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1;)");           //3：创建要发送的实体，就是key-value的这种结构，借助于这个类，可以实现文件和参数同时上传，很简单的。           MultipartEntity reqEntity = new MultipartEntity();           //图片位置           FileBody bin = new FileBody(new File(file));           StringBody comment = new StringBody(filename,charset);           reqEntity.addPart("image", bin);           reqEntity.addPart("filename", comment);           httppost.setEntity(reqEntity);           //4：执行httppost对象，从而获得信息           HttpResponse response1 = httpclient.execute(httppost);           HttpEntity resEntity = response1.getEntity();           //获得返回来的信息，转化为字符串string           resString = EntityUtils.toString(resEntity);       } catch (UnsupportedEncodingException e) {           e.printStackTrace();       } catch (IllegalStateException e) {           e.printStackTrace();       } catch (IOException e) {           e.printStackTrace();       } finally {           try { httpclient.getConnectionManager().shutdown(); } catch (Exception ignore) {}       }    return resString;    }

完工。。。。。。