2011-12-二

2011-12-2

ubuntu系统root默认密码，每次开机会随机产生默认的root密码，修改的方式:
命令sudo passwd
输入、确认新密码

使用httpclient构建post请求的方法：

??? ?? String response = null;        HttpClient client = null;       PostMethod method = null;?           try           {               client = new HttpClient();         //初始化 HttpClient               client.getHostConfiguration().setHost("localhost", port);               method = new PostMethod(url);     //初始化 Http方法 POST，url中不包含参数信息，通过一下代码设置参数?????????????? method.setParameter("name", "a");               method.addParameter(new NameValuePair("sex","b"));   ? ?         method.addParameter(new NameValuePair("location","c"));       ? ?     method.addParameter(new NameValuePair("textarea1",new String(text.getBytes("utf-8"),"iso-8859-1")));????//防止乱码 text为类中的静态变量，类型为String? ? ? ? ? ? ?? client.getParams().setParameter(HttpMethodParams.USER_AGENT,"Mozilla/5.0 Firefox/3.5.2");        //将程序伪装为firefox               client.executeMethod(method);                             //执行 POST 方法               if (method.getStatusCode() == HttpStatus.SC_OK)    {        //方法执行结果是否正常?                   InputStream inputStream = method.getResponseBodyAsStream();                      BufferedReader br = new BufferedReader(new InputStreamReader(inputStream));                      StringBuffer stringBuffer = new StringBuffer();                      String str= "";                      while((str = br.readLine()) != null){                          stringBuffer .append(str );                      response=stringBuffer.toString();                }                  }//将网页保存为String               else if (method.getStatusCode() == 404)                   return null;           }           catch (Exception e)           {               e.printStackTrace();               System.out.println("===== Timed Out =====");           }       method.releaseConnection();

?与GET方法的区别，get方法的url，是通过method的setMethod方法设置，并且其中包含参数的传递。