如何在Servlet中更改Server（localhost）的名称？如果可能的话

Question

import java.io.IOException;
import java.io.PrintWriter;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
public class welcome extends HttpServlet {

    protected void doGet(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {

        response.setContentType("text/html");
        PrintWriter pw=response.getWriter();
        String name=request.getParameter("name");
        pw.println("welcome "+name);
        String pass=request.getParameter("pass");
        pw.println(request.getServerPort()+" is the server port\n");
        pw.println("Server name: "+request.getServerName());
        pw.close();

    }

   protected void doPost(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
    //intentionally left blank.
    }

}

假设我编写了这段代码，这里pw是PrintWriter对象，当执行此代码时，我得到了＃34; localhost＆＃34;作为输出。我想改变这一点。我怎样才能做到这一点？ 我搜索过它但是没有得到任何满意的答案

Answer 1

可以通过创建自己的HttpServletRequestWrapper子类来提供setServerName()。据我研究过。感谢伙计们的帮助。