Spring-Boot框架使用Mybatis-Plus来实现更简化的增删改查------Spring-Boot框架

迈不过友情╰ 2024-02-27 06:57 42阅读 0赞

>     package com.powernode.springbootvue.controller;
>     
>     import com.powernode.springbootvue.Mapper.StudentMapper;
>     import com.powernode.springbootvue.entity.Student;
>     import org.springframework.beans.factory.annotation.Autowired;
>     import org.springframework.web.bind.annotation.GetMapping;
>     import org.springframework.web.bind.annotation.PostMapping;
>     import org.springframework.web.bind.annotation.RestController;
>     
>     import java.util.List;
>     
>     @RestController
>     public class StudentController
>     {
>         @Autowired
>         private StudentMapper studentMapper;
>         @GetMapping("/studentList")
>         public List<Student> getAllStudents()
>         {
>             System.out.println("我在这");
>             return studentMapper.selectList(null);
>         }
>         @PostMapping("/addStudent")
>         public String saveStudent(Student student)
>         {
>             System.out.println("我在这");
>             int i = studentMapper.insert(student);
>             if(i > 0)
>             {
>                 return "插入成功";
>             }
>             else
>             {
>                 return "插入失败";
>             }
>         }
>     }
> 
>     package com.powernode.springbootvue.controller;
>     
>     import com.powernode.springbootvue.Mapper.StudentMapper;
>     import com.powernode.springbootvue.entity.Student;
>     import org.springframework.beans.factory.annotation.Autowired;
>     import org.springframework.web.bind.annotation.GetMapping;
>     import org.springframework.web.bind.annotation.PostMapping;
>     import org.springframework.web.bind.annotation.RestController;
>     
>     import java.util.List;
>     
>     @RestController
>     public class StudentController
>     {
>         @Autowired
>         private StudentMapper studentMapper;
>         @GetMapping("/studentList")
>         public List<Student> getAllStudents()
>         {
>             System.out.println("我在这");
>             return studentMapper.selectList(null);
>         }
>         @PostMapping("/addStudent")
>         public String saveStudent(Student student)
>         {
>             System.out.println("我在这");
>             int i = studentMapper.insert(student);
>             if(i > 0)
>             {
>                 return "插入成功";
>             }
>             else
>             {
>                 return "插入失败";
>             }
>         }
>     }

>     package com.powernode.springbootvue.entity;
>     
>     import com.baomidou.mybatisplus.annotation.TableName;
>     
>     @TableName(value = "t_student")
>     public class Student
>     {
>         private Long id;
>         private String name;
>         private int age;
>         private double height;
>         private String birth;
>         private char sex;
>     
>         @Override
>         public String toString() {
>             return "Student{" +
>                     "id=" + id +
>                     ", name='" + name + '\'' +
>                     ", age=" + age +
>                     ", height=" + height +
>                     ", birthday=" + birth +
>                     ", sex=" + sex +
>                     '}';
>         }
>     
>         public Long getId() {
>             return id;
>         }
>     
>         public void setId(Long id) {
>             this.id = id;
>         }
>     
>         public String getName() {
>             return name;
>         }
>     
>         public void setName(String name) {
>             this.name = name;
>         }
>     
>         public int getAge() {
>             return age;
>         }
>     
>         public void setAge(int age) {
>             this.age = age;
>         }
>     
>         public double getHeight() {
>             return height;
>         }
>     
>         public void setHeight(double height) {
>             this.height = height;
>         }
>     
>         public String getBirth() {
>             return birth;
>         }
>     
>         public void setBirth(String birth) {
>             this.birth = birth;
>         }
>     
>         public char getSex() {
>             return sex;
>         }
>     
>         public void setSex(char sex) {
>             this.sex = sex;
>         }
>     
>         public Student() {
>         }
>     
>         public Student(Long id, String name, int age, double height, String birth, char sex) {
>             this.id = id;
>             this.name = name;
>             this.age = age;
>             this.height = height;
>             this.birth = birth;
>             this.sex = sex;
>         }
>     }
> 
>     package com.powernode.springbootvue.entity;
>     
>     import com.baomidou.mybatisplus.annotation.TableName;
>     
>     @TableName(value = "t_student")
>     public class Student
>     {
>         private Long id;
>         private String name;
>         private int age;
>         private double height;
>         private String birth;
>         private char sex;
>     
>         @Override
>         public String toString() {
>             return "Student{" +
>                     "id=" + id +
>                     ", name='" + name + '\'' +
>                     ", age=" + age +
>                     ", height=" + height +
>                     ", birthday=" + birth +
>                     ", sex=" + sex +
>                     '}';
>         }
>     
>         public Long getId() {
>             return id;
>         }
>     
>         public void setId(Long id) {
>             this.id = id;
>         }
>     
>         public String getName() {
>             return name;
>         }
>     
>         public void setName(String name) {
>             this.name = name;
>         }
>     
>         public int getAge() {
>             return age;
>         }
>     
>         public void setAge(int age) {
>             this.age = age;
>         }
>     
>         public double getHeight() {
>             return height;
>         }
>     
>         public void setHeight(double height) {
>             this.height = height;
>         }
>     
>         public String getBirth() {
>             return birth;
>         }
>     
>         public void setBirth(String birth) {
>             this.birth = birth;
>         }
>     
>         public char getSex() {
>             return sex;
>         }
>     
>         public void setSex(char sex) {
>             this.sex = sex;
>         }
>     
>         public Student() {
>         }
>     
>         public Student(Long id, String name, int age, double height, String birth, char sex) {
>             this.id = id;
>             this.name = name;
>             this.age = age;
>             this.height = height;
>             this.birth = birth;
>             this.sex = sex;
>         }
>     }

>     package com.powernode.springbootvue.Mapper;
>     
>     import com.baomidou.mybatisplus.core.mapper.BaseMapper;
>     import com.powernode.springbootvue.entity.Student;
>     import org.apache.ibatis.annotations.Mapper;
>     
>     @Mapper
>     public interface StudentMapper extends BaseMapper<Student>
>     {
>     
>     }
> 
>     package com.powernode.springbootvue.Mapper;
>     
>     import com.baomidou.mybatisplus.core.mapper.BaseMapper;
>     import com.powernode.springbootvue.entity.Student;
>     import org.apache.ibatis.annotations.Mapper;
>     
>     @Mapper
>     public interface StudentMapper extends BaseMapper<Student>
>     {
>     
>     }