config/plugin.js

ejs: {
    enable: true,
    package: 'egg-view-ejs'
 }

config/config.default.js

config.view = {
    mapping: {'.html': 'ejs'} //左边写成.html后缀，会自动渲染.html文件
};

ejs应用

<% items.forEach(function(item){%>
<li><div style="width: auto !important;"><a href="javascript:void(0);"><div>
<span class="shengxiao"><%=item.zodiac%></span> 
<i style="float: left;"><img src="<%=item.zodiac_img%>"></i> 
<span class="shengxiao">[<%=item.punching%>]</span>
<span class="shuzi">
    <%item.numbers.forEach(function(num){ %>
        <b class="<%=num.wave_color%>"><%=num.number%></b>
    <%})%>
</span></div></a></div></li>
<%})%>