From 4040b06ab80e905847294f502f12a51553d16830 Mon Sep 17 00:00:00 2001
From: xuxin <840198532@qq.com>
Date: Thu, 25 Sep 2025 14:34:50 +0800
Subject: [PATCH] =?UTF-8?q?1.lombok=E7=9A=84=E4=BD=BF=E7=94=A8=202.Spring-?=
=?UTF-8?q?mybatis-=E5=A2=9E=E5=88=A0=E6=94=B9=E6=9F=A5=E5=87=86=E5=A4=87?=
=?UTF-8?q?=E5=B7=A5=E4=BD=9C?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
---
springboot-mybatis-crud/.gitignore | 33 ++++++++
springboot-mybatis-crud/pom.xml | 83 +++++++++++++++++++
.../SpringbootMybatisCrudApplication.java | 13 +++
.../java/com/inmind/mapper/EmpMapper.java | 8 ++
.../src/main/java/com/inmind/pojo/Emp.java | 26 ++++++
.../src/main/resources/application.properties | 14 ++++
...SpringbootMybatisCrudApplicationTests.java | 13 +++
springboot-mybatis-quickstart/pom.xml | 12 +++
.../java/com/inmind/mapper/UserMapper.java | 3 +-
.../src/main/java/com/inmind/pojo/User.java | 70 ++--------------
...bootMybatisQuickstartApplicationTests.java | 44 +++++++++-
11 files changed, 255 insertions(+), 64 deletions(-)
create mode 100644 springboot-mybatis-crud/.gitignore
create mode 100644 springboot-mybatis-crud/pom.xml
create mode 100644 springboot-mybatis-crud/src/main/java/com/inmind/SpringbootMybatisCrudApplication.java
create mode 100644 springboot-mybatis-crud/src/main/java/com/inmind/mapper/EmpMapper.java
create mode 100644 springboot-mybatis-crud/src/main/java/com/inmind/pojo/Emp.java
create mode 100644 springboot-mybatis-crud/src/main/resources/application.properties
create mode 100644 springboot-mybatis-crud/src/test/java/com/inmind/SpringbootMybatisCrudApplicationTests.java
diff --git a/springboot-mybatis-crud/.gitignore b/springboot-mybatis-crud/.gitignore
new file mode 100644
index 0000000..549e00a
--- /dev/null
+++ b/springboot-mybatis-crud/.gitignore
@@ -0,0 +1,33 @@
+HELP.md
+target/
+!.mvn/wrapper/maven-wrapper.jar
+!**/src/main/**/target/
+!**/src/test/**/target/
+
+### STS ###
+.apt_generated
+.classpath
+.factorypath
+.project
+.settings
+.springBeans
+.sts4-cache
+
+### IntelliJ IDEA ###
+.idea
+*.iws
+*.iml
+*.ipr
+
+### NetBeans ###
+/nbproject/private/
+/nbbuild/
+/dist/
+/nbdist/
+/.nb-gradle/
+build/
+!**/src/main/**/build/
+!**/src/test/**/build/
+
+### VS Code ###
+.vscode/
diff --git a/springboot-mybatis-crud/pom.xml b/springboot-mybatis-crud/pom.xml
new file mode 100644
index 0000000..2a0c3b8
--- /dev/null
+++ b/springboot-mybatis-crud/pom.xml
@@ -0,0 +1,83 @@
+
+
+ 4.0.0
+ com.inmind
+ springboot-mybatis-crud
+ 0.0.1-SNAPSHOT
+ springboot-mybatis-crud
+ springboot-mybatis-crud
+
+ 11
+ UTF-8
+ UTF-8
+ 2.7.6
+
+
+
+ org.mybatis.spring.boot
+ mybatis-spring-boot-starter
+ 2.3.0
+
+
+
+ com.mysql
+ mysql-connector-j
+ runtime
+
+
+ org.projectlombok
+ lombok
+ true
+
+
+ org.springframework.boot
+ spring-boot-starter-test
+ test
+
+
+
+
+
+ org.springframework.boot
+ spring-boot-dependencies
+ ${spring-boot.version}
+ pom
+ import
+
+
+
+
+
+
+
+ org.apache.maven.plugins
+ maven-compiler-plugin
+ 3.8.1
+
+ 11
+ 11
+ UTF-8
+
+
+
+ org.springframework.boot
+ spring-boot-maven-plugin
+ ${spring-boot.version}
+
+ com.inmind.SpringbootMybatisCrudApplication
+ true
+
+
+
+ repackage
+
+ repackage
+
+
+
+
+
+
+
+
diff --git a/springboot-mybatis-crud/src/main/java/com/inmind/SpringbootMybatisCrudApplication.java b/springboot-mybatis-crud/src/main/java/com/inmind/SpringbootMybatisCrudApplication.java
new file mode 100644
index 0000000..65b715c
--- /dev/null
+++ b/springboot-mybatis-crud/src/main/java/com/inmind/SpringbootMybatisCrudApplication.java
@@ -0,0 +1,13 @@
+package com.inmind;
+
+import org.springframework.boot.SpringApplication;
+import org.springframework.boot.autoconfigure.SpringBootApplication;
+
+@SpringBootApplication
+public class SpringbootMybatisCrudApplication {
+
+ public static void main(String[] args) {
+ SpringApplication.run(SpringbootMybatisCrudApplication.class, args);
+ }
+
+}
diff --git a/springboot-mybatis-crud/src/main/java/com/inmind/mapper/EmpMapper.java b/springboot-mybatis-crud/src/main/java/com/inmind/mapper/EmpMapper.java
new file mode 100644
index 0000000..c5dcde4
--- /dev/null
+++ b/springboot-mybatis-crud/src/main/java/com/inmind/mapper/EmpMapper.java
@@ -0,0 +1,8 @@
+package com.inmind.mapper;
+
+import org.apache.ibatis.annotations.Mapper;
+
+@Mapper
+public interface EmpMapper {
+
+}
diff --git a/springboot-mybatis-crud/src/main/java/com/inmind/pojo/Emp.java b/springboot-mybatis-crud/src/main/java/com/inmind/pojo/Emp.java
new file mode 100644
index 0000000..84e9c0d
--- /dev/null
+++ b/springboot-mybatis-crud/src/main/java/com/inmind/pojo/Emp.java
@@ -0,0 +1,26 @@
+package com.inmind.pojo;
+
+import lombok.AllArgsConstructor;
+import lombok.Data;
+import lombok.NoArgsConstructor;
+
+import java.time.LocalDate;
+import java.time.LocalDateTime;
+
+@Data
+@NoArgsConstructor
+@AllArgsConstructor
+public class Emp {
+ private Integer id;//ID
+ private String username;//用户名
+ private String password;//密码
+ private String name;//姓名
+ private Short gender;//性别 1:男 2：女
+ private String image; //头像URL
+ private String job; // 职位 1:班主任 2:讲师 3:学工主管 4:教研主管 5:咨询师
+ private LocalDate entrydate; // 入职日期
+ private Integer deptId; // 部门ID
+ private LocalDateTime createTime;
+ private LocalDateTime updateTime;
+
+}
diff --git a/springboot-mybatis-crud/src/main/resources/application.properties b/springboot-mybatis-crud/src/main/resources/application.properties
new file mode 100644
index 0000000..ced36a2
--- /dev/null
+++ b/springboot-mybatis-crud/src/main/resources/application.properties
@@ -0,0 +1,14 @@
+#下面这些内容是为了让MyBatis映射
+#指定Mybatis的Mapper文件
+mybatis.mapper-locations=classpath:mappers/*xml
+#指定Mybatis的实体目录
+mybatis.type-aliases-package=com.inmind.mybatis.entity
+
+#驱动类名称
+spring.datasource.driver-class-name=com.mysql.cj.jdbc.Driver
+#数据库连接的url
+spring.datasource.url=jdbc:mysql://localhost:3306/mybatis
+#连接数据库的用户名
+spring.datasource.username=root
+#连接数据库的密码
+spring.datasource.password=1234
diff --git a/springboot-mybatis-crud/src/test/java/com/inmind/SpringbootMybatisCrudApplicationTests.java b/springboot-mybatis-crud/src/test/java/com/inmind/SpringbootMybatisCrudApplicationTests.java
new file mode 100644
index 0000000..f8cf9fe
--- /dev/null
+++ b/springboot-mybatis-crud/src/test/java/com/inmind/SpringbootMybatisCrudApplicationTests.java
@@ -0,0 +1,13 @@
+package com.inmind;
+
+import org.junit.jupiter.api.Test;
+import org.springframework.boot.test.context.SpringBootTest;
+
+@SpringBootTest
+class SpringbootMybatisCrudApplicationTests {
+
+ @Test
+ void contextLoads() {
+ }
+
+}
diff --git a/springboot-mybatis-quickstart/pom.xml b/springboot-mybatis-quickstart/pom.xml
index 80c7a1f..7d89638 100644
--- a/springboot-mybatis-quickstart/pom.xml
+++ b/springboot-mybatis-quickstart/pom.xml
@@ -44,6 +44,18 @@
spring-boot-starter-test
test
+
+
+
+ com.alibaba
+ druid-spring-boot-starter
+ 1.2.8
+
+
+
+ org.projectlombok
+ lombok
+
diff --git a/springboot-mybatis-quickstart/src/main/java/com/inmind/mapper/UserMapper.java b/springboot-mybatis-quickstart/src/main/java/com/inmind/mapper/UserMapper.java
index 3357f10..22ef6c0 100644
--- a/springboot-mybatis-quickstart/src/main/java/com/inmind/mapper/UserMapper.java
+++ b/springboot-mybatis-quickstart/src/main/java/com/inmind/mapper/UserMapper.java
@@ -14,6 +14,7 @@ public interface UserMapper {
/*
查询所有用户数据
*/
- @Select("select * from user;")
+// @Select("select * from user;")
+ @Select("select * from user")
public List list();
}
diff --git a/springboot-mybatis-quickstart/src/main/java/com/inmind/pojo/User.java b/springboot-mybatis-quickstart/src/main/java/com/inmind/pojo/User.java
index 01fd5e1..e0f3a4a 100644
--- a/springboot-mybatis-quickstart/src/main/java/com/inmind/pojo/User.java
+++ b/springboot-mybatis-quickstart/src/main/java/com/inmind/pojo/User.java
@@ -1,5 +1,14 @@
package com.inmind.pojo;
+import lombok.*;
+
+/*@Getter
+@Setter
+@ToString
+@EqualsAndHashCode*/
+@Data
+@NoArgsConstructor //生成无参构造
+@AllArgsConstructor//生成满参构造方法
public class User {
private Integer id;
private String name;
@@ -7,65 +16,4 @@ public class User {
private Short gender;
private String phone;
- public User() {
- }
-
- public User(Integer id, String name, Integer age, Short gender, String phone) {
- this.id = id;
- this.name = name;
- this.age = age;
- this.gender = gender;
- this.phone = phone;
- }
-
- @Override
- public String toString() {
- return "User{" +
- "id=" + id +
- ", name='" + name + '\'' +
- ", age=" + age +
- ", gender=" + gender +
- ", phone='" + phone + '\'' +
- '}';
- }
-
- public Integer getId() {
- return id;
- }
-
- public void setId(Integer id) {
- this.id = id;
- }
-
- public String getName() {
- return name;
- }
-
- public void setName(String name) {
- this.name = name;
- }
-
- public Integer getAge() {
- return age;
- }
-
- public void setAge(Integer age) {
- this.age = age;
- }
-
- public Short getGender() {
- return gender;
- }
-
- public void setGender(Short gender) {
- this.gender = gender;
- }
-
- public String getPhone() {
- return phone;
- }
-
- public void setPhone(String phone) {
- this.phone = phone;
- }
}
diff --git a/springboot-mybatis-quickstart/src/test/java/com/inmind/SpringbootMybatisQuickstartApplicationTests.java b/springboot-mybatis-quickstart/src/test/java/com/inmind/SpringbootMybatisQuickstartApplicationTests.java
index 41df903..3ae4c0f 100644
--- a/springboot-mybatis-quickstart/src/test/java/com/inmind/SpringbootMybatisQuickstartApplicationTests.java
+++ b/springboot-mybatis-quickstart/src/test/java/com/inmind/SpringbootMybatisQuickstartApplicationTests.java
@@ -6,21 +6,61 @@ import org.junit.jupiter.api.Test;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.test.context.SpringBootTest;
+import java.sql.*;
+import java.util.ArrayList;
import java.util.List;
-@SpringBootTest
+@SpringBootTest //该注解的作用，启动spring环境，所以也就有了IOC容器
class SpringbootMybatisQuickstartApplicationTests {
@Autowired//直接从IOC容器中获取UserMapper类型的对象
- private UserMapper userMapper;
+ private UserMapper userMapper;//接口开发，多态
@Test
void contextLoads() {
//使用mybatis框架查询所有用户的数据
List list = userMapper.list();
list.stream().forEach(user -> {
+ System.out.println(user.getId());
System.out.println(user);
});
}
+ @Test
+ void testJDBC() throws ClassNotFoundException, SQLException {
+ //1. 注册驱动
+ Class.forName("com.mysql.cj.jdbc.Driver");
+
+ //2. 获取连接对象
+ String url = "jdbc:mysql://localhost:3306/mybatis";
+ String username = "root";
+ String password = "1234";
+ Connection connection = DriverManager.getConnection(url, username, password);
+
+ //3. 获取执行SQL的对象Statement,执行SQL,返回结果
+ String sql = "select * from user";
+ Statement statement = connection.createStatement();
+ ResultSet resultSet = statement.executeQuery(sql);
+
+ //4. 封装结果数据
+ List userList = new ArrayList<>();
+ while (resultSet.next()){
+ int id = resultSet.getInt("id");
+ String name = resultSet.getString("name");
+ int age = resultSet.getInt("age");
+ short gender = resultSet.getShort("gender");
+ String phone = resultSet.getString("phone");
+
+ User user = new User(id,name,age,gender,phone);
+ userList.add(user);
+ }
+
+ //5. 释放资源
+ statement.close();
+ connection.close();
+
+
+ userList.forEach(System.out::println);
+ }
+
}