我需要在运行时创建Servlet。当我运行以下代码时:
protected void processRequest(HttpServletRequest request, HttpServletResponse response)throws ServletException, IOException
{
response.setContentType("text/html;charset=UTF-8");
PrintWriter out = response.getWriter();
try {
out.println("<html>");
out.println("<head>");
out.println("<title> URI out</title>");
out.println("</head>");
out.println("<body>");
Integer generatedKey = Math.abs(randomiser.nextInt());
out.print(generatedKey);
createServlet(Integer.toString(generatedKey),request.getServletContext());
} finally {
out.println("</body>");
out.println("</html>");
out.close();
}
}
private void createServlet(String generatedKey, ServletContext servletContext) {
String servletMapping = "/"+generatedKey;
ServletRegistration sr = servletContext.addServlet(generatedKey, "com.path.lbs.servlets.testDynamic");
sr.setInitParameter("keyname", generatedKey);
sr.addMapping(servletMapping);
}
我遇到了以下错误。
在 Servlet 上下文初始化后是否不可能在运行时添加新的 Servlet,或者我做错了什么?java.lang.IllegalStateException: PWC1422:无法为servlet 1114600676的servlet上下文/123-LBS配置映射,因为此servlet上下文已经被初始化