HelloGithub/hellogithub
7
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

添加用户登录

Browse Source
This commit is contained in:
landaiqing
2023-06-29 16:33:11 +08:00
parent b072e74658
commit 01d0e512df
8 changed files with 268 additions and 1 deletions
Download Patch File Download Diff File Expand all files Collapse all files

4
src/com/hellogithub/dao/AdminDao.java Normal file
View File

@@ -0,0 +1,4 @@
package com.hellogithub.dao;
public class AdminDao {
}

48
src/com/hellogithub/dao/UserDao.java Normal file
View File

@@ -0,0 +1,48 @@
package com.hellogithub.dao;
import com.hellogithub.entity.UserEntity;
import com.hellogithub.utils.JdbcUtils;
import java.sql.Connection;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
/**
* 用户Dao层
* */
public class UserDao {
private UserEntity userEntity=new UserEntity();
/**
* 用户登录
* @param userName
* @param userPassword
* */
public UserEntity UserLogin(String userName,String userPassword){
ResultSet resultSet = null;
PreparedStatement preparedStatement = null;
Connection connection = null;
try {
connection = JdbcUtils.getConnection();
String loginSql = "select * from user where userName=? and userPassword=? and isValid=1;";
preparedStatement = connection.prepareStatement(loginSql);
preparedStatement.setString(1, userName);
preparedStatement.setString(2, userPassword);
resultSet = preparedStatement.executeQuery();
if (!resultSet.next()) { // 查询不到用户数据
return null;
}
// 将db中数据 返回给客户端 查询到数据
Integer id = resultSet.getInt(1);
String dbUserName = resultSet.getString(2);
String dbUserPassword = resultSet.getString(3);
UserEntity userEntity = new UserEntity(dbUserName, dbUserPassword);
return userEntity;
} catch (Exception e) {
e.printStackTrace();
return null;
} finally {
JdbcUtils.closeConnection(resultSet, preparedStatement, connection);
}
}
}

4
src/com/hellogithub/entity/AdminEntity.java Normal file
View File

@@ -0,0 +1,4 @@
package com.hellogithub.entity;
public class AdminEntity {
}

107
src/com/hellogithub/entity/UserEntity.java Normal file
View File

@@ -0,0 +1,107 @@
package com.hellogithub.entity;
import java.sql.Date;
/**
* 用户实体层
*/
public class UserEntity {
/**
* CREATE TABLE `user` (
* `userId` int(11) NOT NULL AUTO_INCREMENT COMMENT '用户ID',
* `userName` varchar(255) DEFAULT NULL COMMENT '用户名',
* `userPassword` varchar(255) DEFAULT NULL COMMENT '密码',
* `creatTime` datetime DEFAULT NULL COMMENT '创建时间',
* `isValid` int(11) DEFAULT NULL COMMENT '是否有效(0/1)',
* `projectNum` int(11) DEFAULT NULL COMMENT '提交的项目总数',
* PRIMARY KEY (`userId`)
* ) ENGINE=InnoDB AUTO_INCREMENT=2 DEFAULT CHARSET=utf8mb4 COMMENT='用户表';
*/
private Integer userId;
private String userName;
private String userPassword;
private Date creatTime;
private Integer isValid;
private Integer projectNum;
public UserEntity() {
}
public UserEntity(String userName, String userPassword) {
this.userName=userName;
this.userPassword=userPassword;
}
public Integer getUserId() {
return userId;
}
public void setUserId(Integer userId) {
this.userId = userId;
}
public String getUserName() {
return userName;
}
public void setUserName(String userName) {
this.userName = userName;
}
public String getUserPassword() {
return userPassword;
}
public void setUserPassword(String userPassword) {
this.userPassword = userPassword;
}
public Date getCreatTime() {
return creatTime;
}
public void setCreatTime(Date creatTime) {
this.creatTime = creatTime;
}
public Integer getIsValid() {
return isValid;
}
public void setIsValid(Integer isValid) {
this.isValid = isValid;
}
public Integer getProjectNum() {
return projectNum;
}
public void setProjectNum(Integer projectNum) {
this.projectNum = projectNum;
}
public UserEntity(Integer userId, String userName, String userPassword, Date creatTime, Integer isValid, Integer projectNum) {
this.userId = userId;
this.userName = userName;
this.userPassword = userPassword;
this.creatTime = creatTime;
this.isValid = isValid;
this.projectNum = projectNum;
}
@Override
public String toString() {
return "UserEntity{" +
"userId=" + userId +
", userName='" + userName + '\'' +
", userPassword='" + userPassword + '\'' +
", creatTime=" + creatTime +
", isValid=" + isValid +
", projectNum=" + projectNum +
'}';
}
}

2
src/com/hellogithub/filter/SessionFilter.java
View File

@@ -14,7 +14,7 @@ import java.io.IOException;
*/
@WebFilter("/system/*")// 过滤器所有的请求
public class SessionFilter implements Filter {
private String[] excludeUrls = new String[]{"/VerifycodeServlet"}; //过滤器排除的请求url 格式:”/login“
private String[] excludeUrls = new String[]{"/VerifycodeServlet","/userLogin"}; //过滤器排除的请求url 格式:”/login“
/**
* 过滤器

4
src/com/hellogithub/service/AdminService.java Normal file
View File

@@ -0,0 +1,4 @@
package com.hellogithub.service;
public class AdminService {
}

14
src/com/hellogithub/service/UserService.java Normal file
View File

@@ -0,0 +1,14 @@
package com.hellogithub.service;
import com.hellogithub.dao.UserDao;
import com.hellogithub.entity.UserEntity;
/**
* 用户Service层
* */
public class UserService {
private UserDao userDao=new UserDao();
public UserEntity UserLogin(String userName, String userPassword){
return userDao.UserLogin(userName,userPassword);
}
}

86
src/com/hellogithub/servlet/UserLoginServlet.java Normal file
View File

@@ -0,0 +1,86 @@
package com.hellogithub.servlet;
import com.alibaba.fastjson.JSONObject;
import com.hellogithub.entity.UserEntity;
import com.hellogithub.service.UserService;
import com.hellogithub.utils.RandomValidateCode;
import jakarta.servlet.ServletException;
import jakarta.servlet.annotation.WebServlet;
import jakarta.servlet.http.*;
import org.apache.commons.lang3.StringUtils;
import java.io.IOException;
import java.io.PrintWriter;
import java.util.HashMap;
@WebServlet("/userLogin")
public class UserLoginServlet extends HttpServlet {
private UserService userService = new UserService();
@Override
protected void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
doPost(req,resp);
}
@Override
protected void doPost(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
PrintWriter writer =resp.getWriter();
String userName = req.getParameter("username");
if (StringUtils.isEmpty(userName)) {
setResultError("用户名称不能够是为空",writer);
return;
}
String userPwd = req.getParameter("password");
// 参数验证
if (StringUtils.isEmpty(userPwd)) {
//转发到错误页面
setResultError("密码不能够是为空",writer);
return;
}
String userCode = req.getParameter("code"); // 用户输入的图形验证码
// 从session中获取图形验证码
HttpSession session = req.getSession();
String sessionCode = (String) session.getAttribute(RandomValidateCode.RANDOMVALIDATECODE);
if (!sessionCode.equalsIgnoreCase(userCode)) {
setResultError("验证码不能够是为空",writer);
return;
}
// 在调用业务逻辑层
UserEntity adminUserEntity = userService.UserLogin(userName, userPwd);
if (adminUserEntity == null) {
// 用户名称或者密码错误!
setResultError("用户名或者密码错误！！！",writer);
return;
}
// 判断用户是否记住密码
String rememberPassword = req.getParameter("remember");
if ("on".equals(rememberPassword)) {
// 如果有记住密码则 将密码保存在cookie中
Cookie userNameCookie = new Cookie("userName", userName);
Cookie userPwdCookie = new Cookie("userPwd", userPwd);
resp.addCookie(userNameCookie);
resp.addCookie(userPwdCookie);
}
// 能够db中查询到对象 登录成功了 将用户数据存放在session中
session = req.getSession();
session.setAttribute("user", adminUserEntity);
setResultOK("登录成功！",writer);
}
public void setResult(Integer code, String msg, PrintWriter writer) {
HashMap<String, Object> result = new HashMap<>();
result.put("code", code);
result.put("msg", msg);
String jsonString = JSONObject.toJSONString(result);
writer.println(jsonString);
writer.close();
}
public void setResultError(String msg, PrintWriter writer) {
setResult(500, msg, writer);
}
public void setResultOK(String msg, PrintWriter writer) {
setResult(200, msg, writer);
}
}