在idea里面编写代码,利用Mybaits框架实现一个简单的单表的后台系统——教师系统, 主要功能是添加、删除、批量删除、更新、查看详情、查询。要求具体代码
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HotelSSM:jsp + ssm框架(spring,springMVC,mybaits)实现的酒店预定管理系统的源码,详见:https
在IntelliJ IDEA中使用MyBatis框架创建一个简单的教师管理系统涉及到几个关键步骤。首先确保已经安装了MyBatis插件并配置好了数据库连接。以下是基本的架构和部分代码示例:
1. **设置Mapper文件**:
创建一个`TeacherMapper.xml`文件,用于定义SQL映射,例如添加教师的映射:
```xml
<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN" "http://mybatis.org/dtd/mybatis-3-mapper.dtd">
<mapper namespace="com.example.demo.mapper.TeacherMapper">
<!-- 添加教师 -->
<insert id="insertTeacher" parameterType="com.example.demo.entity.Teacher">
INSERT INTO teachers (name, age, department) VALUES (#{name}, #{age}, #{department})
</insert>
</mapper>
```
2. **TeacherMapper接口**:
创建对应的Mapper接口,如`TeacherMapper.java`:
```java
package com.example.demo.mapper;
import com.example.demo.entity.Teacher;
import org.apache.ibatis.annotations.*;
public interface TeacherMapper {
@Insert("INSERT INTO teachers (name, age, department) VALUES (#{name}, #{age}, #{department})")
void insertTeacher(Teacher teacher);
// ... 其他操作对应的接口方法,比如 deleteById, update, selectBy*等
}
```
3. **Service层**(假设有个`TeacherService.java`):
```java
package com.example.demo.service;
import com.example.demo.entity.Teacher;
import com.example.demo.mapper.TeacherMapper;
public class TeacherService {
private final TeacherMapper teacherMapper;
public TeacherService(TeacherMapper teacherMapper) {
this.teacherMapper = teacherMapper;
}
// 实现业务逻辑方法,调用Mapper接口
public void insertTeacher(Teacher teacher) {
teacherMapper.insertTeacher(teacher);
}
// 其他方法同理
}
```
4. **Controller层**(假设有个`TeacherController.java`):
```java
package com.example.demo.controller;
import com.example.demo.entity.Teacher;
import com.example.demo.service.TeacherService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.*;
@RestController
public class TeacherController {
private final TeacherService teacherService;
@Autowired
public TeacherController(TeacherService teacherService) {
this.teacherService = teacherService;
}
@PostMapping("/addTeacher")
public String addTeacher(@RequestBody Teacher teacher) {
teacherService.insertTeacher(teacher);
return "添加成功";
}
// 其他HTTP动词对应的方法,如 @DeleteMapping, @PutMapping, @GetMapping 等
}
```
5. **注意**: 这里只给出了部分代码片段,完整的项目还需要包含数据访问对象(DAO),实体类(`Teacher`)以及可能的数据持久化配置。
对于具体的代码实现和详细的数据库操作,你需要根据实际情况调整SQL语句,并处理异常情况。此外,还要记得在Spring Boot项目中配置MyBatis以及数据源,才能运行起来。如果你需要更详细的操作步骤,可以参考MyBatis官方文档或在线教程。
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