错误输出信息：
log4j:WARN No appenders could be found for logger (org.apache.ibatis.logging.LogFactory).
log4j:WARN Please initialize the log4j system properly.

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缺失模块。
1、请确保node版本大于6.2
2、在博客根目录（注意不是yilia根目录）执行以下命令：
npm i hexo-generator-json-content --save

3、在根目录_config.yml里添加配置：

  jsonContent:
    meta: false
    pages: false
    posts:
      title: true
      date: true
      path: true
      text: false
      raw: false
      content: false
      slug: false
      updated: false
      comments: false
      link: false
      permalink: false
      excerpt: false
      categories: false
      tags: true

天下事有难易乎<br><br>为之，则难者亦易<br><br>不为，则易者亦难