根据微信号来抓取微信文章

<script type="text/javascript">

//计算字符串长度

String.prototype.strLen = function() {

    var len = 0;

    for (var i = 0; i < this.length; i++) {

        if (this.charCodeAt(i) > 255 || this.charCodeAt(i) < 0) len += 2; else len ++;

    }

    return len;

}

//将字符串拆成字符，并存到数组中

String.prototype.strToChars = function(){

    var chars = new Array();

    for (var i = 0; i < this.length; i++){

        chars[i] = [this.substr(i, 1), this.isCHS(i)];

    }

    String.prototype.charsArray = chars;

    return chars;

}

//判断某个字符是否是汉字

String.prototype.isCHS = function(i){

    if (this.charCodeAt(i) > 255 || this.charCodeAt(i) < 0) 

        return true;

    else

        return false;

}

//截取字符串（从start字节到end字节）

String.prototype.subCHString = function(start, end){

    var len = 0;

    var str = "";

    this.strToChars();

    for (var i = 0; i < this.length; i++) {

        if(this.charsArray[i][1])

            len += 2;

        else

            len++;

        if (end < len)

            return str;

        else if (start < len)

            str += this.charsArray[i][0];

    }

    return str;

}

//截取字符串（从start字节截取length个字节）

String.prototype.subCHStr = function(start, length){

    return this.subCHString(start, start + length);

}



    function parseXML(text,field){

        try{

            xmlDoc=new ActiveXObject("Microsoft.XMLDOM");

            xmlDoc.async="false";

            xmlDoc.loadXML(text);

        }catch(e){

          try{

              parser=new DOMParser();

              xmlDoc=parser.parseFromString(text,"text/xml");

          }catch(e){

              alert(e.message);

              return;

          }

        }

        return xmlDoc.getElementsByTagName(field)[0].childNodes[0].nodeValue;

    }

        var sogou = {

            weixin:{

                gzhcb:function(object){

                    var o = object.items;

                    var htmlString = '';

                    for(var i=0;i<o.length;i++){

                        if(i>3){

                            break;

                        }

                        var str = o[i].toString();

                        var title = parseXML(str,'title').toString();

                        if(title.strLen()>10){

                            title = title.subCHStr(0,30)+'.....';

                        }

                        var object = {

                            title: title,

                            url: parseXML(str,'url'),

                            date: parseXML(str,'date')

                        };

                        htmlString += '<li><a target="_blank" href="'+object.url+'"><span class="bg_dian"></span>'+object.title+'<span class="right_news_time">['+object.date+']</span></a></li>';

                    }

                    

                    $('#right_new_list_ul').append(htmlString);

                }

            }

        }

        $(function(){

            // 这个url是到微信搜狗里面针对自己的微信号找的地址

            var url = 'http://weixin.sogou.com/gzhjs?cb=sogou.weixin.gzhcb&openid=oIWsFt7SddzriXihcBz_1yXHyfms&eqs=a5sooxSgnMwqoznexrP3Zux5mz5NrKcGnwDYMXmLTxYvm9XfC0cp8zbmU3atg%2FnPIHNq1&ekv=7&page=1&t=1436950692098&callback=?';

            //var url = 'http://weixin.sogou.com/gzhjs?cb=sogou.weixin.gzhcb&openid=oIWsFt2IaC1wvHZc3EnDf4iToUcI&eqs=VfsoolZg%2B5ALoIsKSWSRru8JhJEgw1uSWON13NHPGfuO3qpheRdZMoIHzE2KxcUUP9Fym&ekv=7&page=1&t=1436882190413&callback=?';

            $.getJSON(url,function(data){

                data

            });

        });

        

    </script>