Question

protected void doPost(HttpServletRequest request, 
            HttpServletResponse response) throws ServletException, IOException {
....
....
getServletContext().getRequestDispatcher("/output.jsp").forward(request, response);
}

我需要的是不要在doPost的末尾重定向到另一个JSP页面。我有一个字符串（平面文本），我需要响应它与Servlet请求。我怎么能这样做？

Answer 1

你可以这样做：

protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
  response.setContentType("text/html");
  PrintWriter out = response.getWriter();
  out.append("Your string goes here");
  out.close();
}

Answer 2

//getServletContext().getRequestDispatcher("/message.jsp").forward(request, response);
response.getWriter().println(output); // output is the custom string

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如何响应JSP Servlet请求的自定义字符串

2 个答案: