使用HttpClient模拟网站登陆sina邮箱（保持远程服务器session和cookie）

??? ??? System.out.println(" Url："+postUrl);
??? ??? System.out.println(" PostData："+postData);
??? ??? System.out.println(" PostMethod："+_tc.getPostMethod());
??? ??? System.out.println(" Encoding："+_tc.getEncoding());
??? ??? System.out.println("--------------------------------------------------");
??? ??? ???
??? ???
??? ??? HttpClient httpClient = new HttpClient();
??? ???
??? ??? if(_tc.getPostMethod().toUpperCase().equals("GET"))
??? ??? {
??? ??? ??? if(!postData.equals(""))
??? ??? ??? {
??? ??? ??? ??? if(postUrl.indexOf("?") > -1)
??? ??? ??? ??? ??? postUrl += "&"+postData;
??? ??? ??? ??? else
??? ??? ??? ??? ??? postUrl += "?"+postData;
??? ??? ??? }
??? ??? ???
??? ??? ??? GetMethod getHC = new GetMethod(postUrl);
??? ??? ??? getHC.setFollowRedirects(false);
??? ??? ???
??? ??? ??? getHC.getParams().setHttpElementCharset("UTF-8");
??? ??? ???
??? ??? ??? //发送Cookie
??? ??? ??? StringBuilder cookieValue = new StringBuilder();
??? ??? ??? for(String key : this.cookie.keySet()){
??? ??? ??? ??? cookieValue.append(key);
??? ??? ??? ??? cookieValue.append("=");
??? ??? ??? ??? cookieValue.append(this.cookie.get(key));
??? ??? ??? ??? cookieValue.append("; ");
??? ??? ??? }
??? ??? ??? getHC.setRequestHeader("Cookie", cookieValue.toString());
??? ??? ??? getHC.setRequestHeader("User-Agent","Mozilla/4.0 (compatible; MSIE 6.0; Windows 2000)");
??? ??? ???
??? ??? ??? int statusCode;
??? ??? ??? try {
??? ??? ??? ??? statusCode = httpClient.executeMethod(getHC);
??? ??? ??? ???
??? ??? ??? ??? Header[] headers = getHC.getResponseHeaders();
??? ??? ??? ??? for(Header header : headers){
??? ??? ??? ??? ??? if(header.getElements().length > 1){
??? ??? ??? ??? ??? ??? HeaderElement[] elements = header.getElements();
??? ??? ??? ??? ??? ??? for(HeaderElement element : elements){
??? ??? ??? ??? ??? ??? ??? checkCookie(element);
??? ??? ??? ??? ??? ??? }
??? ??? ??? ??? ??? }
??? ??? ??? ??? ??? else
??? ??? ??? ??? ??? {
??? ??? ??? ??? ??? ??? checkCookie(header);
??? ??? ??? ??? ??? }
??? ??? ??? ??? }
??? ??? ??? ???
??? ??? ??? ??? if(statusCode==HttpStatus.SC_OK){
??? ??? ??? ??? ???
??? ??? ??? ??? ??? String charset = "utf-8";
??? ??? ??? ??? ??? if(_tc.getEncoding() == GB2312)
??? ??? ??? ??? ??? ??? charset = "gb2312";
??? ??? ??? ??? ??? else if(_tc.getEncoding() == UTF8)
??? ??? ??? ??? ??? ??? charset = "utf-8";
??? ??? ??? ??? ??? else if(_tc.getEncoding() == BIG5)
??? ??? ??? ??? ??? ??? charset = "big5";
??? ??? ??? ??? ??? else
??? ??? ??? ??? ??? ??? charset = "utf-8";
??? ??? ??? ??? ???
??? ??? ??? ??? ??? System.out.println("charset : " + charset);
??? ??? ??? ??? ???
??? ??? ??? ??? ??? InputStreamReader isr = new InputStreamReader(getHC.getResponseBodyAsStream(), charset); // 设置读取流的编码格式，自定义编码??? ??? ???
??? ??? ??? ??? ??? // 使用字符读取方式，循环读取源文件内容??? ???
??? ??? ??? ??? ??? StringBuffer sb = new StringBuffer();
??? ??? ??? ??? ??? int b ;
??? ??? ??? ??? ??? while ((b = isr.read()) != -1)//顺序读取文件text里的内容并赋值给整型变量b,直到文件结束为止。
??? ??? ??? ??? ??? {
??? ??? ??? ??? ??? ??? if (b < 32 && b!= 10 && b != 13 && b != 9) b = 32;//过滤掉一些换行等符号
??? ??? ??? ??? ??? ??? //if ( b== 10 || b== 13 || b== 9) b = 32;//过滤掉一些换行等符号
??? ??? ??? ??? ??? ??? sb.append((char)b);
??? ??? ??? ??? ??? }
??? ??? ??? ??? ??? isr.close();
??? ??? ??? ??? ??? getHC.abort();
??? ??? ??? ??? ??? //取得采集的内容
??? ??? ??? ??? ??? _content? = sb.toString();
??? ??? ??? ??? ??? //System.out.println("content : "+_content);
??? ??? ??? ??? ???
??? ??? ??? ??? }
??? ??? ??? ??? else
??? ??? ??? ??? {
??? ??? ??? ??? ??? if(statusCode == 301 || statusCode == 302){??? ??? ??? ??? ??? ???
??? ??? ??? ??? ??????? Header locationHeader = getHC.getResponseHeader("location");
??? ??? ??? ??? ??? ??? _tc.setUrl(locationHeader.getValue());
??? ??? ??? ??? ??? ??? _tc.setPostData("");
??? ??? ??? ??? ??? ??? _tc.setPostMethod("GET");
??? ??? ??? ??? ??? ??? HttpRequestURL();//重新请求新网页
??? ??? ??? ??? ??? ???
??? ??? ??? ??? ??? }
??? ??? ??? ??? ???
??? ??? ??? ??? }
??? ??? ??? ???
??? ??? ??? ???
??? ??? ??? } catch (HttpException e2) {
??? ??? ??? ??? e2.printStackTrace();
??? ??? ??? } catch (IOException e2) {
??? ??? ??? ??? e2.printStackTrace();
??? ??? ??? }
??? ??? }
??? ??? else
??? ??? {
??? ??? ??? PostMethod postHC = new PostMethod(postUrl);
??? ??? ??? postHC.setFollowRedirects(false);
??? ??? ??? postHC.getParams().setHttpElementCharset("UTF-8");
??? ??? ???
??? ??? ??? //发送Cookie
??? ??? ??? StringBuilder cookieValue = new StringBuilder();
??? ??? ??? for(String key : this.cookie.keySet()){
??? ??? ??? ??? cookieValue.append(key);
??? ??? ??? ??? cookieValue.append("=");
??? ??? ??? ??? cookieValue.append(this.cookie.get(key));
??? ??? ??? ??? cookieValue.append("; ");
??? ??? ??? }
??? ??? ??? postHC.setRequestHeader("Cookie", cookieValue.toString());
??? ??? ??? postHC.setRequestHeader("User-Agent","Mozilla/4.0 (compatible; MSIE 6.0; Windows 2000)");
??? ??? ???
??? ??? ??? //post数据到服务器
??? ??? ??? if(postData!=null && !postData.equals("")){
??? ??? ??? ???
??? ??? ??? ??? HashMap<String,String> argv =? new HashMap<String,String>();
??? ??? ??? ??? String[] arrParams = postData.split("&");
??? ??? ??? ??? for(int i=0;i<arrParams.length;i++){
??? ??? ??? ??? ??? if(arrParams[i] == null || arrParams[i].equals(""))
??? ??? ??? ??? ??? {
??? ??? ??? ??? ??? ??? continue;
??? ??? ??? ??? ??? }
??? ??? ??? ??? ??? else if(arrParams[i].indexOf("=") > -1)
??? ??? ??? ??? ??? {
??? ??? ??? ??? ??? ??? String[] nameValue = arrParams[i].split("=");
??? ??? ??? ??? ??? ??? if(nameValue.length > 1)
??? ??? ??? ??? ??? ??? ??? argv.put(nameValue[0], nameValue[1]);
??? ??? ??? ??? ??? }
??? ??? ??? ??? }
??? ??? ??? ???
??? ??? ??? ??? if(argv!=null){
??? ??? ??? ??? ??? NameValuePair[] nameValuePair = new NameValuePair[argv.size()];
??? ??? ??? ??? ???
??? ??? ??? ??? ??? int i = 0;
??? ??? ??? ??? ??? for(String key : argv.keySet()){
??? ??? ??? ??? ??? ??? nameValuePair[i] = new NameValuePair(key, argv.get(key));
??? ??? ??? ??? ??? ??? i++;
??? ??? ??? ??? ??? }
??? ??? ??? ??? ??? postHC.setRequestBody(nameValuePair);
??? ??? ??? ??? }
??? ??? ??? }
??? ??? ???
??? ??? ??? int statusCode;
??? ??? ??? try {
??? ??? ??? ??? statusCode = httpClient.executeMethod(postHC);
??? ??? ??? ???
??? ??? ??? ??? Header[] headers = postHC.getResponseHeaders();
??? ??? ??? ??? for(Header header : headers){
??? ??? ??? ??? ??? if(header.getElements().length > 1){
??? ??? ??? ??? ??? ??? HeaderElement[] elements = header.getElements();
??? ??? ??? ??? ??? ??? for(HeaderElement element : elements){
??? ??? ??? ??? ??? ??? ??? checkCookie(element);
??? ??? ??? ??? ??? ??? }
??? ??? ??? ??? ??? }
??? ??? ??? ??? ??? else
??? ??? ??? ??? ??? {
??? ??? ??? ??? ??? ??? checkCookie(header);
??? ??? ??? ??? ??? }
??? ??? ??? ??? }
??? ??? ??? ???
??? ??? ??? ??? if(statusCode==HttpStatus.SC_OK){
??? ??? ??? ??? ???
??? ??? ??? ??? ??? String charset = "utf-8";
??? ??? ??? ??? ??? if(_tc.getEncoding() == GB2312)
??? ??? ??? ??? ??? ??? charset = "gb2312";
??? ??? ??? ??? ??? else if(_tc.getEncoding() == UTF8)
??? ??? ??? ??? ??? ??? charset = "utf-8";
??? ??? ??? ??? ??? else if(_tc.getEncoding() == BIG5)
??? ??? ??? ??? ??? ??? charset = "big5";
??? ??? ??? ??? ??? else
??? ??? ??? ??? ??? ??? charset = "utf-8";
??? ??? ??? ??? ??? ??? ??? ??? ??? ??
??? ??? ??? ??? ??? InputStreamReader isr = new InputStreamReader(postHC.getResponseBodyAsStream(), charset); // 设置读取流的编码格式，自定义编码??? ??? ???
??? ??? ??? ??? ??? // 使用字符读取方式，循环读取源文件内容??? ???
??? ??? ??? ??? ??? StringBuffer sb = new StringBuffer();
??? ??? ??? ??? ??? int b ;
??? ??? ??? ??? ??? while ((b = isr.read()) != -1)//顺序读取文件text里的内容并赋值给整型变量b,直到文件结束为止。
??? ??? ??? ??? ??? {
??? ??? ??? ??? ??? ??? if (b < 32 && b!= 10 && b != 13 && b != 9) b = 32;//过滤掉一些换行等符号
??? ??? ??? ??? ??? ??? //if ( b== 10 || b== 13 || b== 9) b = 32;//过滤掉一些换行等符号
??? ??? ??? ??? ??? ??? sb.append((char)b);
??? ??? ??? ??? ??? }
??? ??? ??? ??? ??? isr.close();
??? ??? ??? ??? ??? postHC.abort();
??? ??? ??? ??? ??? //取得采集的内容
??? ??? ??? ??? ??? _content? = sb.toString();
??? ??? ??? ??? ???
??? ??? ??? ??? }
??? ??? ??? ??? else
??? ??? ??? ??? {
??? ??? ??? ??? ??? if(statusCode == 301 || statusCode == 302){
??? ??? ??? ??? ??????? Header locationHeader = postHC.getResponseHeader("location");
??? ??? ??? ??? ??? ??? _tc.setUrl(locationHeader.getValue());
??? ??? ??? ??? ??? ??? _tc.setPostData("");
??? ??? ??? ??? ??? ??? _tc.setPostMethod("GET");
??? ??? ??? ??? ??? ??? HttpRequestURL();//重新请求新网页
??? ??? ??? ??? ??? }
??? ??? ??? ??? ???
??? ??? ??? ??? }
??? ??? ??? ???
??? ??? ??? ???
??? ??? ??? } catch (HttpException e2) {
??? ??? ??? ??? e2.printStackTrace();
??? ??? ??? } catch (IOException e2) {
??? ??? ??? ??? e2.printStackTrace();
??? ??? ??? }
??? ??? }
??? }

private void checkCookie(NameValuePair entry){
??? ??? if(entry.getName().equals("Set-Cookie")){
??? ??? ??? //这个就是Cookie了
??? ??? ??? String value = entry.getValue();
??? ??? ??? if(value.indexOf(";") >0 )
??? ??? ??? ??? value = value.substring(0,value.indexOf(";"));
??? ??? ???
??? ??? ??? System.out.println(entry.toString());
??? ??? ???
??? ??? ??? String[] cookieNameValuePair = value.split("=");
??? ??? ??? if(cookieNameValuePair.length > 1){
??? ??? ??? ??? if(cookieNameValuePair[1].equals("deleted")){
??? ??? ??? ??? ??? this.cookie.remove(cookieNameValuePair[0]);
??? ??? ??? ??? }
??? ??? ??? ??? else
??? ??? ??? ??? {
??? ??? ??? ??? ??? this.cookie.put(cookieNameValuePair[0], cookieNameValuePair[1]);
??? ??? ??? ??? }
??? ??? ??? }
??? ??? ??? else
??? ??? ??? {
??? ??? ??? ??? this.cookie.remove(cookieNameValuePair[0]);
??? ??? ??? }
??? ??? }
??? }