java - Eclipse 内部浏览器不应用 HTML 标签

Question

我用 Java 创建了一个简单的 servlet，并在 Eclipse 内部浏览器中显示了它的 HTML 输出。

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

但是输出是这样的:

为什么不适用<h3>标签？

Answer 1

需要设置响应内容类型:

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

     PrintWriter writer = response.getWriter();

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



}