Java获取http和https协议返回的json数据

现在很多公司都是将数据返回一个json，而且很多第三方接口都是返回json数据，而且还需要使用到http协议，http协议是属于为加密的协议，而https协议需要ssl证书，https是将用户返回的信息加密处理，然而我们要获取这些数据，就需要引入ssl证书。现在我提供两个方法，帮助各位如何获取http和https返回的数据。

获取http协议的数据的方法，如下：

public static jsonobject httprequest(string requesturl, string requestmethod) {
    jsonobject jsonobject = null;
    stringbuffer buffer = new stringbuffer();
    try {

      url url = new url(requesturl);
      // http协议传输
      httpurlconnection httpurlconn = (httpurlconnection) url.openconnection();

      httpurlconn.setdooutput(true);
      httpurlconn.setdoinput(true);
      httpurlconn.setusecaches(false);
      // 设置请求方式（get/post）
      httpurlconn.setrequestmethod(requestmethod);

      if ("get".equalsignorecase(requestmethod))
        httpurlconn.connect();
      // 将返回的输入流转换成字符串
      inputstream inputstream = httpurlconn.getinputstream();
      inputstreamreader inputstreamreader = new inputstreamreader(inputstream, "utf-8");
      bufferedreader bufferedreader = new bufferedreader(inputstreamreader);

      string str = null;
      while ((str = bufferedreader.readline()) != null) {
        buffer.append(str);
      }
      bufferedreader.close();
      inputstreamreader.close();
      // 释放资源
      inputstream.close();
      inputstream = null;
      httpurlconn.disconnect();
      jsonobject = jsonobject.fromobject(buffer.tostring());
    } catch (exception e) {
      e.printstacktrace();
    }
    return jsonobject;
  }

获取https协议的数据的方法，如下：

public static jsonobject httpsrequest(string requesturl, string requestmethod, string outputstr) {
    jsonobject jsonobject = null;
    stringbuffer buffer = new stringbuffer();
    try {
      // 创建sslcontext对象，并使用我们指定的信任管理器初始化
      trustmanager[] tm = { new myx509trustmanager() };
      sslcontext sslcontext = sslcontext.getinstance("ssl", "sunjsse");
      sslcontext.init(null, tm, new java.security.securerandom());
      // 从上述sslcontext对象中得到sslsocketfactory对象
      sslsocketfactory ssf = sslcontext.getsocketfactory();

      url url = new url(requesturl);
      httpsurlconnection httpurlconn = (httpsurlconnection) url.openconnection();
      httpurlconn.setsslsocketfactory(ssf);

      httpurlconn.setdooutput(true);
      httpurlconn.setdoinput(true);
      httpurlconn.setusecaches(false);
      // 设置请求方式（get/post）
      httpurlconn.setrequestmethod(requestmethod);

      if ("get".equalsignorecase(requestmethod))
        httpurlconn.connect();

      // 当有数据需要提交时
      if (null != outputstr) {
        outputstream outputstream = httpurlconn.getoutputstream();
        // 注意编码格式，防止中文乱码
        outputstream.write(outputstr.getbytes("utf-8"));
        outputstream.close();
      }

      // 将返回的输入流转换成字符串
      inputstream inputstream = httpurlconn.getinputstream();
      inputstreamreader inputstreamreader = new inputstreamreader(inputstream, "utf-8");
      bufferedreader bufferedreader = new bufferedreader(inputstreamreader);

      string str = null;
      while ((str = bufferedreader.readline()) != null) {
        buffer.append(str);
      }
      bufferedreader.close();
      inputstreamreader.close();
      // 释放资源
      inputstream.close();
      inputstream = null;
      httpurlconn.disconnect();
      jsonobject = jsonobject.fromobject(buffer.tostring());
    } catch (connectexception ce) {
      log.error("weixin server connection timed out.");
    } catch (exception e) {
      log.error("https request error:{}", e);
    }
    return jsonobject;

  }

获取https协议的数据和获取http协议的区别在于

  // 创建sslcontext对象，并使用我们指定的信任管理器初始化
      trustmanager[] tm = { new myx509trustmanager() };
      sslcontext sslcontext = sslcontext.getinstance("ssl", "sunjsse");
      sslcontext.init(null, tm, new java.security.securerandom());
      // 从上述sslcontext对象中得到sslsocketfactory对象
      sslsocketfactory ssf = sslcontext.getsocketfactory();

      url url = new url(requesturl);
      httpsurlconnection httpurlconn = (httpsurlconnection) url.openconnection();
      httpurlconn.setsslsocketfactory(ssf);

大家有更好的方法欢迎留言分享，以上就是本次共享的内容 。还有，提示一下，如果复制中，缺失jar包，请自行下载

以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持。