servlet中用StringBuffer的方式输出一个表单输不出来而是输出我的项目名

Question

public class Form extends HttpServlet { private static final long serialVersionUID = 1L;    /**     * Default constructor.      */    public Form() {        // TODO Auto-generated constructor stub    } /**  * @see HttpServlet#doGet(HttpServletRequest request, HttpServletResponse response)  */ protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {  // TODO Auto-generated method stub  response.getWriter().append("Served at: ").append(request.getContextPath()); } /**  * @see HttpServlet#doPost(HttpServletRequest request, HttpServletResponse response)  */ protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {  // TODO Auto-generated method stub  response.setContentType("text/html;charset=utf-8");  response.setCharacterEncoding("utf-8");  PrintWriter writer = response.getWriter();  StringBuffer buffer = new StringBuffer(); /* <form action=''>  username:<input type='text'>  password:<input type='text'> </form> */  buffer.append("<form action=''>");  buffer.append("username:<input type='text'>");  buffer.append("password:<input type='text'>");  buffer.append("</form>"); }}

Answer 1

先看你的http请求是什么类型