day05 javaweb初步以及linux數據庫基礎

**Servlet新建出錯是因爲沒有引入Servlet庫，把下圖的包導入 localhost和127.0.0.1都代表本機地址 request.setCharacterEncoding(「UTF-8」); response.setCharacterEncoding(「UTF-8」); response.setContentType(「text/html;charset=utf-8」); reque

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