目录
1、软件开发整体介绍
软件开发流程
角色分工
软件环境
2、瑞奇外卖项目介绍
项目介绍
产品原型展示
技术选型
功能架构
角色
3、环境搭建
数据库环境搭建
maven项目搭建
4、后台登录功能开发
需求分析
代码开发
5、后台退出功能开发
第一天
1、软件开发整体介绍
软件开发流程
角色分工
软件环境
2、瑞奇外卖项目介绍
项目介绍
产品原型展示
技术选型
功能架构
角色
3、环境搭建
数据库环境搭建
-
创建数据库
-
执行SQL脚本
-
数据表
maven项目搭建
解决IDEA加载maven工程缓慢
VM Options:-DarchetypeCatalog=local
添加依赖:
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.4.5</version>
<relativePath/> <!-- lookup parent from repository -->
</parent>
<groupId>com.ka</groupId>
<artifactId>reggie</artifactId>
<version>1.0-SNAPSHOT</version>
<properties>
<java.version>1.8</java.version>
</properties>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
<scope>compile</scope>
</dependency>
<dependency>
<groupId>com.baomidou</groupId>
<artifactId>mybatis-plus-boot-starter</artifactId>
<version>3.4.2</version>
</dependency>
<dependency>
<groupId>org.projectlombok</groupId>
<artifactId>lombok</artifactId>
<version>1.18.20</version>
</dependency>
<dependency>
<groupId>com.alibaba</groupId>
<artifactId>fastjson</artifactId>
<version>1.2.76</version>
</dependency>
<dependency>
<groupId>commons-lang</groupId>
<artifactId>commons-lang</artifactId>
<version>2.6</version>
</dependency>
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<scope>runtime</scope>
</dependency>
<dependency>
<groupId>com.alibaba</groupId>
<artifactId>druid-spring-boot-starter</artifactId>
<version>1.1.23</version>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
<version>2.4.5</version>
</plugin>
</plugins>
</build>
application.yml
server:
port: 8080
spring:
application:
#应用名称
name: reggie_take_out
datasource:
druid:
driver-class-name: com.mysql.cj.jdbc.Driver
url: jdbc:mysql://localhost:3306/reggie?serverTimezone=Asia/Shanghai&useUnicode=true&characterEncoding=utf-8&zeroDateTimeBehavior=convertToNull&useSSL=false&allowPublicKeyRetrieval=true
username: root
password: 1234
mybatis-plus:
configuration:
#address_book->AddressBook
#在映射实体或者属性时，将数据库中表名和字段名中的下划线去掉，按照驼峰命名法映射
map-underscore-to-camel-case: true
log-impl: org.apache.ibatis.logging.stdout.StdOutImpl
global-config:
db-config:
id-type: ASSIGN_ID
配置application启动类
@Slf4j
@SpringBootApplication
public class ReggieApplication {
public static void main(String[] args) {
SpringApplication.run(ReggieApplication.class,args);
log.info("项目启动成功！！！");
}
}
把前端的静态资源放在resource目录,springmvc是默认访问static里面的静态资源，想直接访问要配置静态资源映射
设置静态资源映射
@Slf4j
@Configuration
public class WebMvcConfig extends WebMvcConfigurationSupport {
@Override
protected void addResourceHandlers(ResourceHandlerRegistry registry) {
log.info("开始静态资源映射");
//classpath: = resources
registry.addResourceHandler("/backend/**").addResourceLocations("classpath:/backend/");
registry.addResourceHandler("/front/**").addResourceLocations("classpath:/front/");
}
}
启动项目，访问http://localhost:8080/backend/index.html
4、后台登录功能开发
需求分析
-
登录页面展示(http://localhost:8080/backend/page/login/login.html)
-
查看登录请求信息
-
数据模型（employee表）
代码开发
- 创建实体类Employee，和employee表进行映射
@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;//身份证号码
private Integer status;
private LocalDateTime createTime;
private LocalDateTime updateTime;
@TableField(fill = FieldFill.INSERT)
private Long createUser;
@TableField(fill = FieldFill.INSERT_UPDATE)
private Long updateUser;
}
- 创建Controller，Service，Mapper
EmployeeMapper
@Mapper
public interface EmployeeMapper extends BaseMapper<Employee> {
}
EmployeeService
public interface EmployeeService extends IService<Employee> {
}
EmployeeServiceImpl
@Service
public class EmployeeServiceImpl extends ServiceImpl<EmployeeMapper, Employee> implements EmployeeService {
}
EmployeeController
@Slf4j
@RestController
@RequestMapping("/employee")
public class EmployeeController {
@Autowired
private EmployeeServiceImpl employeeService;
}
- 导入返回结果类R
- 此类是一个通用结果类，服务端响应的所有结果最终都会包装成此种类型返回给前端页面
@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;
}
}
- 在Controller中创建登录方法
@Slf4j
@RestController
@RequestMapping("/employee")
public class EmployeeController {
@Autowired
private EmployeeServiceImpl employeeService;
@PostMapping("/login")
public R<Employee> logib(HttpServletRequest request, @RequestBody Employee employee) {
//1、将页面提交的密码进行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来查数据库
LambdaQueryWrapper<Employee> queryWrapper = new LambdaQueryWrapper<>();
queryWrapper.eq(Employee::getUsername, employee.getUsername());
Employee emp = employeeService.getOne(queryWrapper);
//3、如果没有查询到则返回失败结果
if (emp == null) {
return R.error("登录失败");
}
//4、比对密码，如果不一致则返回失败结果
if (!emp.getPassword().equals(password)) {
return R.error("密码错误");
}
//5、查看员工状态，如果已禁用状态，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，将用户id存入Session并返回成功结果
request.getSession().setAttribute("employee", emp.getId());
return R.success(emp);
}
}
5、后台退出功能开发
需求分析
代码实现
在Controller中创建退出方法
//员工退出
@PostMapping("/logout")
public R<String> logout(HttpServletRequest request){
//清理Session中保存的当前员工登录的id
request.getSession().removeAttribute("employee");
return R.success("退出成功");
}
