Eclipse內部瀏覽器不應用HTML標記

Question

我已經在Java中創建了一個簡單的servlet，並在Eclipse內部瀏覽器中顯示其HTML輸出。

protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { 
     PrintWriter writer = response.getWriter(); 
     writer.println("<h3> Hello World </h3>"); 
    } 

但輸出是這樣的：

爲什麼不適用<h3>標籤？

Answer 1

需要設置響應內容類型：

public void doGet(HttpServletRequest request, HttpServletResponse response) throws IOException,ServletException 
{ 
    response.setContentType("text/html"); 

    PrintWriter writer = response.getWriter(); 

    writer.println("<h3> Hello World </h3>"); 



}