package com.whh.servlet.user;
import com.alibaba.fastjson.JSONArray;
import com.mysql.jdbc.StringUtils;
import com.whh.pojo.Role;
import com.whh.pojo.User;
import com.whh.service.role.RoleService;
import com.whh.service.role.RoleServiceImpl;
import com.whh.service.user.UserService;
import com.whh.service.user.UserServiceImpl;
import com.whh.util.Constants;
import com.whh.util.PageSupport;
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;
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
@WebServlet("/jsp/user.do")
public class UserServlet extends HttpServlet {
@Override
protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
String method = request.getParameter("method");
System.out.println("method----> " + method);
if (method != null && method.equals("add")) {
//增加操作
this.add(request, response);
} else if (method != null && method.equals("query")) {
this.query(request, response);
} else if (method != null && method.equals("getrolelist")) {
this.getRoleList(request, response);
} else if (method != null && method.equals("ucexist")) {
this.UserCodeExist(request, response);
} else if (method != null && method.equals("deluser")) {
this.delUser(request, response);
} else if (method != null && method.equals("view")) {
this.getUserById(request, response, "userview.jsp");
} else if (method != null && method.equals("modify")) {
this.getUserById(request, response, "usermodify.jsp");
} else if (method != null && method.equals("modifyexe")) {
this.modify(request, response);
} else if (method != null && method.equals("pwdmodify")) {
this.pwdModify(request, response);
} else if (method != null && method.equals("savepwd")) {
this.updatePwd(request, response);
}
}
@Override
protected void doPost(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
doGet(req,resp);
}
//查询所有用户信息
public void query(HttpServletRequest req, HttpServletResponse resp){
//从前端拿数据
String queryUserName = req.getParameter("queryname");
String temp = req.getParameter("queryUserRole");
String pageIndex = req.getParameter("pageIndex");
int queryUserRole=0;
//获取用户列表
UserService userServlet=new UserServiceImpl();
List<User> userList=null;
//第一次走这个请求 一定是第一页 页面大小固定
int pageSize=5;
int currentPageNo=1;
if (queryUserName==null){
queryUserName="";
}
if (temp!=null&& !temp.equals("")){
queryUserRole =Integer.parseInt(temp);//给查询赋值
}
if (pageIndex!=null){
currentPageNo=Integer.parseInt(pageIndex);
}
//获取用户的总数(分页:上一页,下一页)
int totalCount=userServlet.getUserCount(queryUserName,queryUserRole);
//总页数支持
PageSupport pageSupport = new PageSupport();
pageSupport.setCurrentPageNo(currentPageNo);
pageSupport.setPageSize(pageSize);
pageSupport.setTotalCount(totalCount);
int totalPageCount=((int)(totalCount/pageSize))+1;
//控制首页和尾页
//如果页面要小于1了 就显示第一页的东西
if (currentPageNo<1){
currentPageNo=1;
}else if (currentPageNo>totalPageCount){//当前页面大于了最后一页
currentPageNo=totalPageCount;
}
//获取用户列表展示
userList=userServlet.getUserList(queryUserName,queryUserRole,currentPageNo,pageSize);
req.setAttribute("userList",userList);
RoleServiceImpl roleService=new RoleServiceImpl();
List<Role> roleList=roleService.getRoleList();
req.setAttribute("roleList",roleList);
req.setAttribute("totalCount",totalCount);
req.setAttribute("currentPageNo",currentPageNo);
req.setAttribute("queryUserName",queryUserName);
req.setAttribute("queryUserRole",queryUserRole);
req.setAttribute("totalPageCount",totalPageCount);
try {
req.getRequestDispatcher("userlist.jsp").forward(req,resp);
} catch (ServletException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
}
//修改用户密码
public void updatePwd(HttpServletRequest req, HttpServletResponse resp){
//从Session里面拿id
Object o = req.getSession().getAttribute(Constants.USER_SESSION);
String newpassword = req.getParameter("newpassword");
boolean flag=false;
System.out.println(o!=null);
System.out.println(StringUtils.isNullOrEmpty(newpassword));
if (o!=null&&!StringUtils.isNullOrEmpty(newpassword)){
UserService userService = new UserServiceImpl();
flag=userService.updatePwd(((User) o).getId(),newpassword);
if (flag){
req.setAttribute("message","修改密码成功,请退出,使用新的密码登录");
//密码修改成功,移除当前Session
req.getSession().removeAttribute(Constants.USER_SESSION);
}else {
req.setAttribute("message","密码修改失败");
}
}else {
req.setAttribute("message","新密码有问题");
}
try {
req.getRequestDispatcher("pwdmodify.jsp").forward(req,resp);
} catch (ServletException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
}
//判断旧密码
public void pwdModify(HttpServletRequest req, HttpServletResponse resp){
//从Session里面拿id
Object o = req.getSession().getAttribute(Constants.USER_SESSION);
String oldpassword = req.getParameter("oldpassword");
//万能Map 存入结果集
Map<String,String> resultMap=new HashMap<String,String>();
if (o==null){
resultMap.put("result","sessionerror");
}else if (StringUtils.isNullOrEmpty(oldpassword)){
//输入密码是否为空
resultMap.put("result","error");
}else{
String userPassword=((User) o).getUserPassword();
if (oldpassword.equals(userPassword)){
resultMap.put("result","true");
}else {
resultMap.put("result","false");
}
}
try {
resp.setContentType("application/json");
PrintWriter writer=resp.getWriter();
/*JsonArray 阿里巴巴的JSON工具类 转换格式*/
writer.write(JSONArray.toJSONString(resultMap));
writer.flush();
writer.close();
} catch (IOException e) {
e.printStackTrace();
}
}
//添加用户
public void add(HttpServletRequest req, HttpServletResponse resp) throws IOException, ServletException {
System.out.println("=========add");
//获得前端数据
String userCode = req.getParameter("userCode");
String userName = req.getParameter("userName");
String userPassword = req.getParameter("userPassword");
String gender = req.getParameter("gender");
String birthday = req.getParameter("birthday");
String phone = req.ge
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