SOURCE

function generalSideContent() {
    //根据实际情况修改selector
    var selector = ".boxtitle";
    //自动生成锚点
    $.each($(selector), function (index, ele) {
        $(ele).attr("id", "link" + index);
    });
    var sideContentHtml = getSideContentHtml(selector);

    $(".contactsider").append(sideContentHtml);
}
function getSideContentHtml(selector) {
    var contents = $(selector);
    if (contents == null || contents.length == 0) return "";
    var html = [];
    html.push("<ul>");
    $.each(contents, function (index, ele) {
        html.push("<li><a href='#" + "link" + index + "'>");
        html.push($(ele).text());
        html.push("</a></li>")
    });
    html.push("</ul>");
    return html.join('');
}

<div class="contactsider">
        简历目录

        <script>
          $(function () {
            generalSideContent();
          });
        </script>
      </div>
      <div class="contactmain">
        <div class="contactmainboxsp">
          王求职 工作4年 本科 在职-暂不考虑 28岁 13800000000
        </div>
        <div class="contactmainbox">
          <div class="boxtitle">求职意向</div>
        </div>
        <div class="contactmainbox">
          <div class="boxtitle">工作经历</div>
        </div>
        <div class="contactmainbox">
          <div class="boxtitle">项目经验</div>
        </div>
        <div class="contactmainbox">
          <div class="boxtitle">教育经历</div>
        </div>
        <div class="contactmainbox">
          <div class="boxtitle">所获荣誉/证书</div>
        </div>
        <div class="contactmainbox">
          <div class="boxtitle">技能特长</div>
        </div>
        <div class="contactmainbox">
          <div class="boxtitle">自我评价</div>
        </div>
      </div>