[HttpClient]HTTPClient PostMethod 中文乱码问题解决方案（2种）

本文转自： http://blog.csdn.net/apei830/article/details/5526236

HTTPClient PostMethod 中文乱码问题解决方案（2种）

 

Apache HttpClient (  http://jakarta.apache.org/commons/httpclient/ ) 是一个纯 Java 的HTTP 协议的客户端编程工具包, 对 HTTP 协议的支持相当全面, 更多细节也可以参考IBM 网站上的这篇文章 HttpClient入门 ( http://www.ibm.com/developerworks/cn/opensource/os-httpclient/  ).

 

不过在实际使用中, 还是发现按照最基本的方式调用 HttpClient 时, 并不支持 UTF-8 编码。

 

现在给出2个解决方案：

 

一、在调用PostMethod方法时设置字符编码：

 PostMethod postMethod = new PostMethod(
         "http://127.0.0.1:8080/HttpClientServer/login.do");
    postMethod.getParams().setParameter(HttpMethodParams.HTTP_CONTENT_CHARSET,"utf-8");
    

二、重载PostMethod的getRequestCharSet()方法, 返回我们需要的编码(字符集)名称, 就可以解决 UTF-8 或者其它非默认编码提交 POST 请求时的乱码问题了.

 

   //Inner class for UTF-8 support    
         public static class UTF8PostMethod extends PostMethod{    
                 public UTF8PostMethod(String url){    
                         super(url);    
                }    
                @Override    
                 public String getRequestCharSet() {    
                         //return super.getRequestCharSet();    
                         return "utf-8";    
                }    
        }        

PostMethod postMethod = new UTF8PostMethod(
         "http://127.0.0.1:8080/HttpClientServer/login.do");

三、最后服务器端要配合客户端，设置下编码字符集：

   public void doPost(HttpServletRequest request, HttpServletResponse response)
       throws ServletException, IOException {
     //解决中文乱码问题，此步不可少
    request.setCharacterEncoding( "UTF-8");
    response.setContentType( "text/html");
    response.setCharacterEncoding( "UTF-8");
    PrintWriter out = response.getWriter();
    String username = (String) request.getParameter( "username");
    String password = (String) request.getParameter( "password");
    System.out.println( "******************** doPost被执行了 ********************");
    System.out.println( "您的请求参数为:/tusername:" + username + "/tpassword:"
        + password);
    out.print( "您的请求参数为:/tusername:" + username + "/tpassword:" + password);
    out.flush();
    out.close();
  }