spring mvc 基础笔记 源代码

package com.controller; import java.io.PrintWriter; import java.util.ArrayList; import java.util.HashMap; import java.util.Map; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; import org.springframework.stereotype.Controller; import org.springframework.web.bind.annotation.RequestMapping; import org.springframework.web.servlet.ModelAndView; import com.entity.User; @Controller @RequestMapping("/check.do") public class Validation { @RequestMapping(params = "method=loginCheck") public void login(HttpServletRequest request, HttpServletResponse response) throws Exception { // 注意：这里不能用request.getParameter("id").这不是servlet了 String tempID = request.getParameter("userId"); String tempPwd = request.getParameter("userPwd"); response.setContentType("text/html;charset=UTF-8"); PrintWriter out = response.getWriter(); String idError = "用户名请输入 mizhiwu"; String pwdError = "密码请输入mizhiwu"; String resultError = "用户已存在"; if (tempID.equalsIgnoreCase("mizhiwu") && tempPwd.equals("mizhiwu")) { out.print("<result>"); out.print("<msg>"); out.print("OK"); out.print("</msg>"); out.print("</result>"); //提交 out.flush(); out.close(); } else { // 将处理结果返回给客户端 out.print("<result>"); out.print("<errorMsg type='id'>"); out.print("<msg>"); out.print(idError); out.print("</msg>"); out.print("</errorMsg>"); out.print("<errorMsg type='pwd'>"); out.print("<msg>"); out.print(pwdError); out.print("</msg>"); out.print("</errorMsg>"); out.print("</result>"); out.flush(); out.close(); } } }