src/main/java/com/hwua/erhai/controller/UserUpdateServlet.java

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package com.hwua.erhai.controller;


import com.hwua.erhai.entity.User;
import com.hwua.erhai.model.MUser;
import com.hwua.erhai.service.IUserService;
import com.hwua.erhai.service.impl.MockUserService;
import com.hwua.erhai.service.query.QueryCondition;
import javax.servlet.*;
import javax.servlet.http.*;
import javax.servlet.annotation.*;
import java.io.IOException;
import java.util.ArrayList;
import java.util.List;

@WebServlet(name = "UserUpdateServlet", value = "/userUpdate")
public class UserUpdateServlet extends HttpServlet {
    IUserService userService = new MockUserService();
    @Override
    protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
        String userId = request.getParameter("userId");
        List<QueryCondition> queryConditionList = new ArrayList<>();
        queryConditionList.add(new QueryCondition("userId",userId));

        List<User> userList = userService.queryUsers(queryConditionList,1,0);

        if (userList ==null||userList.size()==0){
            request.setAttribute("message","找不到该用户");
            request.getRequestDispatcher("/userFoundError.jsp").forward(request,response);
            return;
        }
        if (userList.size()>1){
            request.setAttribute("massage","找到多个用户");
            request.getRequestDispatcher("/userFoundError.jsp").forward(request,response);
            return;
        }

        User user = userList.get(0);
        MUser mUser = new MUser();
        mUser.setId(String.valueOf(user.getId()));
        mUser.setUsername(String.valueOf(user.getUserName()));
        mUser.setPassword(String.valueOf(user.getPassword()));
        mUser.setSex(String.valueOf(user.getSex()));
        mUser.setIdNumber(String.valueOf(user.getIdNumber()));
        mUser.setTel(String.valueOf(user.getTel()));
        mUser.setAddr(String.valueOf(user.getAddr()));
        mUser.setImagePath(String.valueOf(user.getImagePath()));
        mUser.setType(user.getType()==0? "普通用户":"管理员");

//        mUser.setImagePath(String.format("upload/user_%d.img",user.getId()));
        mUser.setImagePath(String.format("upload/user_%d.img?t=%d",user.getId(),System.currentTimeMillis()));

        request.setAttribute("mUser",mUser);
        request.getRequestDispatcher("/userUpdate.jsp").forward(request,response);
    }

    @Override
    protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {