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目录
1.2.1 创建实体类Employee与employee库表进行映射
1.2.2 创建controller、mapper、service、service.impl包
1.2.2.3 创建 EmployeeServcieImpl实现类
1.2.2.4 创建 EmployeeController类
前言:实现管理系统的登录功能开发,包含需求分析、代码开发、功能测试
略
启动服务
http://localhost:8080/backend/page/login/login.html
- package com.runa.reggie.entity;
-
- import com.baomidou.mybatisplus.annotation.FieldFill;
- import com.baomidou.mybatisplus.annotation.TableField;
- import lombok.Data;
- import java.io.Serializable;
- import java.time.LocalDateTime;
-
- @Data
- public class Employee implements Serializable {
-
- private static final long serialVersionUID = 1L;
-
- private Long id;
-
- private String username;
-
- private String name;
-
- private String password;
-
- private String phone;
-
- private String sex;
-
- private String idNumber;
-
- private Integer status;
-
- private LocalDateTime createTime;
-
- private LocalDateTime updateTime;
-
- @TableField(fill = FieldFill.INSERT)
- private Long createUser;
-
- @TableField(fill = FieldFill.INSERT_UPDATE)
- private Long updateUser;
-
- }
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- package com.runa.reggie.mapper;
-
- import com.baomidou.mybatisplus.core.mapper.BaseMapper;
- import com.runa.reggie.entity.Employee;
- import org.apache.ibatis.annotations.Mapper;
-
- @Mapper
- public interface EmployeeMapper extends BaseMapper<Employee> {
- }
- package com.runa.reggie.service.impl;
-
- import com.baomidou.mybatisplus.extension.service.IService;
- import com.runa.reggie.entity.Employee;
-
- public interface EmployeeServcie extends IService<Employee> {
- }
- package com.runa.reggie.service.impl.impl;
-
- import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
- import com.runa.reggie.entity.Employee;
- import com.runa.reggie.mapper.EmployeeMapper;
- import com.runa.reggie.service.impl.EmployeeServcie;
- import org.springframework.stereotype.Service;
-
- @Service
- public class EmployeeServcieImpl extends ServiceImpl<EmployeeMapper, Employee> implements EmployeeServcie {
- }
- package com.runa.reggie.controller;
-
- import com.runa.reggie.service.impl.EmployeeServcie;
- import lombok.extern.slf4j.Slf4j;
- import org.springframework.beans.factory.annotation.Autowired;
- import org.springframework.web.bind.annotation.RequestMapping;
- import org.springframework.web.bind.annotation.RestController;
-
- @Slf4j
- @RestController
- @RequestMapping("/employee")
- public class EmployeeController {
-
- @Autowired
- private EmployeeServcie employeeServcie;
- }
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- package com.runa.reggie.common;
-
- import lombok.Data;
- import java.util.HashMap;
- import java.util.Map;
-
-
- /**
- * 通用返回结果,服务端响应的数据最终都会封装成此对象
- * @param <T>
- */
- @Data
- public class R<T> {
-
- private Integer code; //编码:1成功,0和其它数字为失败
-
- private String msg; //错误信息
-
- private T data; //数据
-
- private Map map = new HashMap(); //动态数据
-
- public static <T> R<T> success(T object) {
- R<T> r = new R<T>();
- r.data = object;
- r.code = 1;
- return r;
- }
-
- public static <T> R<T> error(String msg) {
- R r = new R();
- r.msg = msg;
- r.code = 0;
- return r;
- }
-
- public R<T> add(String key, Object value) {
- this.map.put(key, value);
- return this;
- }
-
- }
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- package com.runa.reggie.controller;
-
- import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
- import com.runa.reggie.common.R;
- import com.runa.reggie.entity.Employee;
- import com.runa.reggie.service.impl.EmployeeServcie;
- import lombok.extern.slf4j.Slf4j;
- import org.springframework.beans.factory.annotation.Autowired;
- import org.springframework.util.DigestUtils;
- import org.springframework.web.bind.annotation.PostMapping;
- import org.springframework.web.bind.annotation.RequestBody;
- import org.springframework.web.bind.annotation.RequestMapping;
- import org.springframework.web.bind.annotation.RestController;
-
- import javax.servlet.http.HttpServletRequest;
-
- @Slf4j
- @RestController
- @RequestMapping("/employee")
- public class EmployeeController {
-
- @Autowired
- private EmployeeServcie employeeServcie;
-
-
- /**
- * 员工登录
- * @param request
- * @param employee
- * @return
- */
- //HttpServletRequest request 是为了将登录对象塞入session
- @PostMapping("/login")
- public R<Employee> login(HttpServletRequest request, @RequestBody Employee employee){
-
- //1、将页面提交的密码password进行md5加密处理
- String password = employee.getPassword();
- password = DigestUtils.md5DigestAsHex(password.getBytes());
-
- //2、根据页面提交的用户名username查询数据库
- LambdaQueryWrapper<Employee> queryWrapper = new LambdaQueryWrapper<>();
- queryWrapper.eq(Employee::getUsername,employee.getUsername());
- Employee emp = employeeServcie.getOne(queryWrapper);
-
- //3、如果没有查询到则返回登录失败结果
- if(emp == null){
- return R.error("登录失败");
- }
-
- //4、密码比对,如果不一致则返回登录失败结果
- if(!emp.getPassword().equals(password)){
- return R.error("登录失败");
- }
-
- //5、查看员工状态,如果为已禁用状态,则返回员工已禁用结果
- if(emp.getStatus() == 0){
- return R.error("账号已禁用");
- }
-
- //6、登录成功,将员工id存入Session并返回登录成功结果
- request.getSession().setAttribute("employee",emp.getId());
- return R.success(emp);
- }
-
- }
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访问
http://localhost:8080/backend/page/login/login.html
- package com.runa.reggie.controller;
-
- import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
- import com.runa.reggie.common.R;
- import com.runa.reggie.entity.Employee;
- import com.runa.reggie.service.impl.EmployeeServcie;
- import lombok.extern.slf4j.Slf4j;
- import org.springframework.beans.factory.annotation.Autowired;
- import org.springframework.util.DigestUtils;
- import org.springframework.web.bind.annotation.PostMapping;
- import org.springframework.web.bind.annotation.RequestBody;
- import org.springframework.web.bind.annotation.RequestMapping;
- import org.springframework.web.bind.annotation.RestController;
-
- import javax.servlet.http.HttpServletRequest;
-
- @Slf4j
- @RestController
- @RequestMapping("/employee")
- public class EmployeeController {
-
- @Autowired
- private EmployeeServcie employeeServcie;
-
-
- /**
- * 员工登录
- * @param request
- * @param employee
- * @return
- */
- //HttpServletRequest request 是为了将登录对象塞入session
- @PostMapping("/login")
- public R<Employee> login(HttpServletRequest request, @RequestBody Employee employee){
-
- //1、将页面提交的密码password进行md5加密处理
- String password = employee.getPassword();
- password = DigestUtils.md5DigestAsHex(password.getBytes());
-
- //2、根据页面提交的用户名username查询数据库
- LambdaQueryWrapper<Employee> queryWrapper = new LambdaQueryWrapper<>();
- queryWrapper.eq(Employee::getUsername,employee.getUsername());
- Employee emp = employeeServcie.getOne(queryWrapper);
-
- //3、如果没有查询到则返回登录失败结果
- if(emp == null){
- return R.error("登录失败");
- }
-
- //4、密码比对,如果不一致则返回登录失败结果
- if(!emp.getPassword().equals(password)){
- return R.error("登录失败");
- }
-
- //5、查看员工状态,如果为已禁用状态,则返回员工已禁用结果
- if(emp.getStatus() == 0){
- return R.error("账号已禁用");
- }
-
- //6、登录成功,将员工id存入Session并返回登录成功结果
- request.getSession().setAttribute("employee",emp.getId());
- return R.success(emp);
- }
-
- @PostMapping("/logout")
- public R<String> logout(HttpServletRequest request){
- // 清理Session 中保存的当前员工的id
- request.getSession().removeAttribute("emplyee");
-
- return R.success("退出成功!");
-
- }
-
- }
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访问
http://localhost:8080/backend/page/login/login.html
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