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HttpClient 应用中需要注意到的地方

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       最近HttpClient用的比较多,应用中有些需要注意的地方。

       生成HttpClient的地方:

   httpClient=new HttpClient();
  httpClient.getParams().setCookiePolicy(CookiePolicy.BROWSER_COMPATIBILITY);

  //一定要有,否则会生成多个Cookie header送给web server
  httpClient.getParams().setParameter("http.protocol.single-cookie-header",true);
  httpClient.getParams().setParameter("http.protocol.content-charset","gb2312");
  ArrayList headerList=new ArrayList();
  Header accept=new Header("Accept","image/gif, image/x-xbitmap, image/jpeg, image/pjpeg, application/x-shockwave-flash, application/msword, application/vnd.ms-excel, application/vnd.ms-powerpoint, application/x-silverlight, */*");
  headerList.add(accept);
    ...... 

  httpClient.getParams().setParameter("http.default-headers",headerList);
  httpClient.getParams().setParameter("http.protocol.version",HttpVersion.HTTP_1_1);
  httpClient.getParams().setParameter("http.method.retry-handler",new DefaultHttpMethodRetryHandler());

   

  生成httpMethod的地方:

     PostMethod postMethod =new PostMethod();
  postMethod.getParams().setUriCharset("GB2312");

     postMethod.setURI(new URI(url,false,"GB2312"));

     client.executeMethod(postMethod); 

   以上可避免送出类似“HTTP://127.0.0.1:8080/action.do?content=一二三四五六”的URL时出现URI报错

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