学习Servlet知识随笔

学习了Servlet一些知识点和自己写的代码应用

package com.mt.servlet;

import java.io.IOException;

import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

public class LoginServlet extends HttpServlet {
@Override
protected void service(HttpServletRequest req, HttpServletResponse rep)
   throws ServletException, IOException {
  //设置请求代码格式
  req.setCharacterEncoding("utf-8");
  //设置响应代码格式
  rep.setContentType("text/html;charset=utf-8");
  //获取请求信息
  //处理请求信息
  //响应处理结果
  rep.getWriter().write("<html>");
  rep.getWriter().write("<head>");
  rep.getWriter().write("<body>");
  rep.getWriter().write("<form action='user' method='post'>");
  rep.getWriter().write("用户名：<input type='text' name='uname' /><br/>");
  rep.getWriter().write("密     码：<input type='text' name='pwd' /><br/>");
  rep.getWriter().write("<input type='submit' value='提交' />");
  rep.getWriter().write("</form>");
  rep.getWriter().write("<body>");
  rep.getWriter().write("</head>");
  rep.getWriter().write("</html>");
}

}

package com.mt.servlet;

import java.io.IOException;

import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

public class UserServlet extends HttpServlet {
@Override
protected void service(HttpServletRequest req, HttpServletResponse rep)
  throws ServletException, IOException {
  //设置请求编码格式
req.setCharacterEncoding("utf-8");
//设置响应编码格式
rep.setContentType("text/html;charset=utf-8");
//获取请求信息
String name = req.getParameter("uname");
String pwd = req.getParameter("pwd");
//处理请求结果
if("matao".equals(name)&&"123".equals(pwd)){
  rep.getWriter().write("登陆成功");
}else{
  rep.getWriter().write("请检查用户名或密码");
}
}
}

针对快捷键：Ctrl+N 选择Servlet创建可以直接配好web.xml，省了自己人工配置

在部署项目时可以改项目虚拟名：右键->properties->web,即可更改

posted on 2019-04-08 21:37 马涛AA 阅读(103) 评论(1) 收藏举报

刷新页面返回顶部

马涛AA

学习Servlet知识随笔

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