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                        /JAVA遇見HTML——Servlet篇

用 doGet可以顯示，用doPost就不顯示了，哪位好人幫我看一下啊？

<body>
???<h1>第一個servlet小例子</h1>
???<a?href="servlet/HelloServlet">get方式請求HelloServlet</a><br>
???<form?action="servlet/HelloServlet"?method="post">
???<input?type="submit"?value="用post方式提交HelloServlet"?/>
???</form>
??</body>

	protected?void?doGet(HttpServletRequest?request,?HttpServletResponse?response)?throws?ServletException,?IOException?{
		//?TODO?Auto-generated?method?stub
		?System.out.println("處理doGet請求");
		?PrintWriter?out=response.getWriter();
		?out.println("HelloServlet");
	}

	/*?(non-Javadoc)
	?*?@see?javax.servlet.http.HttpServlet#doPost(javax.servlet.http.HttpServletRequest,?javax.servlet.http.HttpServletResponse)
	?*/
	@Override
	protected?void?doPost(HttpServletRequest?request,?HttpServletResponse?response)?throws?ServletException,?IOException?{
		//?TODO?Auto-generated?method?stub
		?System.out.println("處理doPost請求");
		?PrintWriter?out=response.getWriter();
		?out.println("HelloServlet?from?post");
	}

??<servlet>
??<servlet-name>HelloServlet</servlet-name>
??<servlet-class>servlet.HelloServlet</servlet-class>
??</servlet>
??<servlet-mapping>
??<servlet-name>HelloServlet</servlet-name>
??<url-pattern>/servlet/HelloServlet</url-pattern>
??</servlet-mapping>