post请求能不能像get请求一样，在路径后面加参数？

参数的方法不推荐，涉及安全问题，最好不用。

实验：

1、Servlet

package com.wrox;

import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;
import java.io.PrintWriter;

@WebServlet(
        name = "helloServlet",
        urlPatterns = {"/greeting", "/salutation", "/wazzup"},
        loadOnStartup = 1
)
public class HelloServlet extends HttpServlet {
    private static final String DEFAULT_USER = "Guest";

    @Override
    protected void doGet(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        String user = request.getParameter("user");
        String returnTo = request.getParameter("returnTo");
        if (user == null)
            user = HelloServlet.DEFAULT_USER;

        response.setContentType("text/html");
        response.setCharacterEncoding("UTF-8");

        PrintWriter writer = response.getWriter();
        writer.append("\r\n")
                .append("\r\n")
                .append("    \r\n")
                .append("        \r\n")
                .append("    \r\n")
                .append("    \r\n")
                .append("        Hello, ").append(user).append(" - ").append(returnTo).append("!

\r\n")
                .append("        
\r\n")
                .append("            Enter your name:
\r\n")
                .append("            
\r\n")
                .append("            \r\n")
                .append("        
\r\n")
                .append("    \r\n")
                .append("\r\n");
    }

    @Override
    protected void doPost(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        this.doGet(request, response);
    }

}

2、页面Jsp

<%@ page contentType="text/html;charset=UTF-8" language="java" %>

    
        
    
    
        Go to greeting.
    

3、结果

小记：

慢慢探索、深入，争取写出点有意义的东西。有疑问，就写个小栗子，搞一下就明白了。