J2ME使用Socket通过cmwap接入点访问安全HTTPS 2

新建一个Midp应用程序,在startApp中加入以下代码:


      1 SocketConnection conn = null;
  2 OutputStream os = null;
  3 InputStream is = null;
  4 try {
  5 // url: https://ebs.95559.com.cn/corporbank/es_logon.jsp
  6 conn = (SocketConnection) Connector.open("socket://10.0.0.172:80", Connector.READ_WRITE, true);
  7 conn.setSocketOption(SocketConnection.DELAY, 0);
  8 conn.setSocketOption(SocketConnection.KEEPALIVE, 300);
  9
  10 // 发送和回复的请求
  11 os = conn.openDataOutputStream();
  12 is = conn.openDataInputStream();
  13
  14 // 在此我们使用HTTP 1.0,HTTP 1.1自己还需要处理chunk,比较麻烦
  15 String reqStr =
  16 "GET https://ebs.95559.com.cn/corporbank/es_logon.jsp HTTP/1.0\r\n" +
  17 "Host: ebs.95559.com.cn:443\r\n" +
  18 "User-Agent: FelixBrowser\r\n" +
  19 "Accept-Charset: utf-8;\r\n" +
  20 "Connection: close;\r\n" +
  21 "Accept-Language: zh-cn\r\n\r\n";
  22
  23 os.write(reqStr.getBytes());
  24 os.flush();
  25
  26 System.out.println("Response Stream:");
  27 byte[] buf = new byte[128];
  28 while (true) {
  29 int availSize = is.read(buf, 0, buf.length);
  30 if (availSize == -1) {
  31 break;
  32 }
  33 System.out.println(new String(buf, 0, availSize));
  34 }
  35 } catch (Exception ex) {
  36 ex.printStackTrace();
  37 } finally {
  38 if (is != null) {
  39 try {
  40 is.close();
  41 } catch (IOException ex) {
  42 ex.printStackTrace();
  43 }
  44 }
  45
  46 if (os != null) {
  47 try {
  48 os.close();
  49 } catch (IOException ex) {
  50 ex.printStackTrace();
  51 }
  52 }
  53
  54 if (conn != null) {
  55 try {
  56 conn.close();
  57 } catch (IOException ex) {
  58 ex.printStackTrace();
  59 }
  60 }
  61 }
  62

  输出结果:

  image

  OK,这就是我们想要的结果。

  封装并重构

  平时我们用习惯了HttpConnection,对于使用SocketConnection访问HTTP来说,太多的设置和属性拼凑给编码带来了不少麻烦。在完善J2ME-XHTML浏览器时,我将Socket访问HTTP这一块代码封装成一个类SocketHttpConnection,此类继承自HttpConnection,实现了接口方法。

  并且,我还构建了一个工厂类,可以通过枚举的方式创建SocketHttpConnection和纯HttpConnection,有工厂创建的类还可以制定是以代理的方式连接还是直连。在此,我将代码贡献出来给大家。下载地址:这里。

  几个类之间的关系如下:

  无标题

  使用方法很简单:

 


 1 // 请求地址
  2 String url = "https://ebs.95559.com.cn/corporbank/es_logon.jsp";
  3
  4 // 连接方式:SocketConnection/HttpConnection
  5 byte connType = HttpConnectionFactory.CONNTYPE_SOCKET_HTTP;
  6
  7 // 是否使用代理及代理地址、端口
  8 boolean isUseProxy = true;
  9 String proxyHost = "10.0.0.172";
  10 int proxyPort = 80;
  11
  12 HttpConnection conn = null;
  13 InputStream is = null;
  14 try {
  15 // 调用工厂创建
  16 conn = HttpConnectionFactory.getConnection(url, connType, isUseProxy, proxyHost, proxyPort);
  17
  18 // 像原生HttpConnection一样使用
  19 int code = conn.getResponseCode();
  20 System.out.println("Response Code: " + code);
  21
  22 is = conn.openDataInputStream();
  23
  24 System.out.println("Response Stream:");
  25 byte[] buf = new byte[128];
  26 while (true) {
  27 int availSize = is.read(buf, 0, buf.length);
  28 System.out.println(new String(buf, 0, availSize));
  29
  30 if (availSize < buf.length) {
  31 break;
  32 }
  33 }
  34 } catch (IOException ex) {
  35 ex.printStackTrace();
  36 }
  37

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