spring boot mybatis-plus,mybatisplus与springboot整合使用
目录
1.MyBatisX插件2.引入依赖3.编写配置4.编写接口5.运行测试6.完整代码
1.MyBatisX插件
在使用框架或者mybatis-plus时,我们可以安装想法的米巴蒂斯的插件- MyBatisX,
这样我们就可以实现点击接口跳转到结构化查询语言文件,点击结构化查询语言文件可以跳转到接口的功能,很方便。这个插件的功能还有很多,可以查看MyBatis-Plus官网
安装方法:打开想法,进入文件-设置-插件-浏览存储库,输入mybatisx搜索并安装,然后重启想法.
点击小鸟可实现跳转
2.引入依赖
在pom.xml添加如下依赖
!-数据库相关-依赖关系groupIdcom.baomidou/groupId artifactId my batis-plus-boot-starter/artifactId版本3 .4 .1/版本/依赖关系groupId MySQL/groupId artifact id MySQL-connector-Java/artifact id版本5 .1 .6/版本/依赖关系groupIdcom.alibaba/groupId人工德鲁伊-弹簧-启动-启动/人工版本1 .1 .17/版本/依赖关系
3.编写配置
应用程序.属性
服务器。port=8080 spring。数据来源。URL=JDBC :我的SQL ://localhost :3306/db _ spring测试?使用unicode=true字符编码=utf8 spring。数据来源。用户名=root spring。数据来源。密码=123456春。数据来源。driver-class-name=comMySQL。JDBC。驾驶员
# - 配置我的batis plus-#配置结构化查询语言文件路径mybatis-plus。mapper-locations=类路径:/mapper/* .xml#开启驼峰命名映射我的batis-plus。配置。map-underline-to-camel-case=true #自定义结构化查询语言中表名带前缀,默认是实体名的小写,如用户,但是数据库中是t _用户,所以设置加上前缀mybatis-plus。全局配置。d b-配置。表格前缀=t _
# - 配置德鲁伊- #监控春豆春。数据来源。德鲁伊。AOP模式=com。李米。弹簧靴测试2。* #底层开启功能,stat(sql监控),墙(防火墙)春天。数据来源。德鲁伊。过滤器=stat,墙
# 配置监控页功能春天。数据来源。德鲁伊。统计-视图-servlet。enabled=真正的弹簧。数据来源。医生
uid.stat-view-servlet.login-username=adminspring.datasource.druid.stat-view-servlet.login-password=123456spring.datasource.druid.stat-view-servlet.reset-enable=false
# 监控webspring.datasource.druid.web-stat-filter.enabled=truespring.datasource.druid.web-stat-filter.url-pattern=/*spring.datasource.druid.web-stat-filter.exclusions='*.js,*.gif,*.jpg,*.png,*.css,*.ico,/druid/*'
# 对上面filters里面的stat的详细配置spring.datasource.druid.filter.stat.slow-sql-millis=1000spring.datasource.druid.filter.stat.log-slow-sql=truespring.datasource.druid.filter.stat.enabled=truespring.datasource.druid.filter.wall.enabled=truespring.datasource.druid.filter.wall.config.drop-table-allow=false
4.编写接口
UserMapper
package com.limi.springboottest2.mapper;import com.baomidou.mybatisplus.core.mapper.BaseMapper;import com.limi.springboottest2.entity.User;import org.springframework.stereotype.Repository;@Repositorypublic interface UserMapper extends BaseMapper<User> { User getUserById(Integer id);}
UserMapper.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"><!-- namespace:必须有值,自定义的唯一字符串 推荐使用:dao 接口的全限定名称 --><mapper namespace="com.limi.springboottest2.mapper.UserMapper"> <select id="getUserById" resultType="com.limi.springboottest2.entity.User"> select * from t_user where id = #{id} </select></mapper>
注意要开启mapper接口文件的扫描
SpringbootTest2Application
package com.limi.springboottest2;import org.mybatis.spring.annotation.MapperScan;import org.springframework.beans.factory.annotation.Autowired;import org.springframework.boot.SpringApplication;import org.springframework.boot.autoconfigure.SpringBootApplication;import org.springframework.context.ConfigurableApplicationContext;@SpringBootApplication@MapperScan("com.limi.springboottest2.mapper")//扫描mapperpublic class SpringbootTest2Application { public static void main(String[] args) { //1、返回我们IOC容器 ConfigurableApplicationContext run = SpringApplication.run(SpringbootTest2Application.class, args); }}
5.运行测试
HelloController
package com.limi.springboottest2.controller;import com.limi.springboottest2.entity.User;import com.limi.springboottest2.mapper.UserMapper;import org.springframework.beans.factory.annotation.Autowired;import org.springframework.stereotype.Controller;import org.springframework.web.bind.annotation.GetMapping;import org.springframework.web.bind.annotation.PathVariable;import org.springframework.web.bind.annotation.ResponseBody;import java.util.List;@Controllerpublic class HelloController { @Autowired private UserMapper userMapper; //测试自己编写sql语句的查询方法 @ResponseBody @GetMapping("/getUser/{id}") public User test1(@PathVariable("id") Integer id){ User user = userMapper.getUserById(id); return user; } //测试mybatis-plus内置的查询方法 @ResponseBody @GetMapping("/getAllUser") public List<User> test2(){ List<User> userList = userMapper.selectList(null);//查询所有 return userList; }}
6.完整代码
pom.xml
<?xml version="1.0" encoding="UTF-8"?><project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd"> <modelVersion>4.0.0</modelVersion> <parent> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-parent</artifactId> <version>2.7.0</version> <relativePath/> <!-- lookup parent from repository --> </parent> <groupId>com.limi</groupId> <artifactId>springboot-test2</artifactId> <version>0.0.1-SNAPSHOT</version> <name>springboot-test2</name> <description>Demo project for Spring Boot</description> <properties> <java.version>1.8</java.version> </properties> <dependencies> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-web</artifactId> </dependency> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-devtools</artifactId> <scope>runtime</scope> <optional>true</optional> </dependency> <dependency> <groupId>org.projectlombok</groupId> <artifactId>lombok</artifactId> <optional>true</optional> </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-configuration-processor</artifactId> <optional>true</optional> </dependency> <!--数据库相关--> <dependency> <groupId>com.baomidou</groupId> <artifactId>mybatis-plus-boot-starter</artifactId> <version>3.4.1</version> </dependency> <dependency> <groupId>mysql</groupId> <artifactId>mysql-connector-java</artifactId> <version>5.1.6</version> </dependency> <dependency> <groupId>com.alibaba</groupId> <artifactId>druid-spring-boot-starter</artifactId> <version>1.1.17</version> </dependency> </dependencies> <build> <plugins> <plugin> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-maven-plugin</artifactId> <configuration> <excludes> <exclude> <groupId>org.projectlombok</groupId> <artifactId>lombok</artifactId> </exclude> </excludes> </configuration> </plugin> <!-- 下面插件作用是工程打包时,不将spring-boot-configuration-processor打进包内,让其只在编码的时候有用 --> <plugin> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-maven-plugin</artifactId> <configuration> <excludes> <exclude> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-configuration-processor</artifactId> </exclude> </excludes> </configuration> </plugin> </plugins> </build></project>
application.properties
server.port=8080spring.datasource.url=jdbc:mysql://localhost:3306/db_springtest?useUnicode=true&characterEncoding=utf8spring.datasource.username=rootspring.datasource.password=123456spring.datasource.driver-class-name=com.mysql.jdbc.Driver
#----------------------------配置mybatis-plus---------------------------#配置sql文件路径mybatis-plus.mapper-locations=classpath:/mapper/*.xml#开启驼峰命名映射mybatis-plus.configuration.map-underscore-to-camel-case=true## 自定义sql中表名带前缀, 默认是实体名的小写, 如user, 但是数据库中是t_user, 所以设置加上前缀mybatis-plus.global-config.db-config.table-prefix=t_
#----------------------------配置druid--------------------------------#监控SpringBeanspring.datasource.druid.aop-patterns=com.limi.springboottest2.* # 底层开启功能,stat(sql监控),wall(防火墙)spring.datasource.druid.filters=stat,wall
# 配置监控页功能spring.datasource.druid.stat-view-servlet.enabled=truespring.datasource.druid.stat-view-servlet.login-username=adminspring.datasource.druid.stat-view-servlet.login-password=123456spring.datasource.druid.stat-view-servlet.reset-enable=false
# 监控webspring.datasource.druid.web-stat-filter.enabled=truespring.datasource.druid.web-stat-filter.url-pattern=/*spring.datasource.druid.web-stat-filter.exclusions='*.js,*.gif,*.jpg,*.png,*.css,*.ico,/druid/*'
# 对上面filters里面的stat的详细配置spring.datasource.druid.filter.stat.slow-sql-millis=1000spring.datasource.druid.filter.stat.log-slow-sql=truespring.datasource.druid.filter.stat.enabled=truespring.datasource.druid.filter.wall.enabled=truespring.datasource.druid.filter.wall.config.drop-table-allow=false
UserMapper.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"><!-- namespace:必须有值,自定义的唯一字符串 推荐使用:dao 接口的全限定名称 --><mapper namespace="com.limi.springboottest2.mapper.UserMapper"> <select id="getUserById" resultType="com.limi.springboottest2.entity.User"> select * from t_user where id = #{id} </select></mapper>
SpringbootTest2Application
package com.limi.springboottest2;import org.mybatis.spring.annotation.MapperScan;import org.springframework.beans.factory.annotation.Autowired;import org.springframework.boot.SpringApplication;import org.springframework.boot.autoconfigure.SpringBootApplication;import org.springframework.context.ConfigurableApplicationContext;@SpringBootApplication@MapperScan("com.limi.springboottest2.mapper")//扫描mapperpublic class SpringbootTest2Application { public static void main(String[] args) { //1、返回我们IOC容器 ConfigurableApplicationContext run = SpringApplication.run(SpringbootTest2Application.class, args); }}
User
package com.limi.springboottest2.entity;import lombok.AllArgsConstructor;import lombok.Data;import lombok.NoArgsConstructor;import lombok.ToString;@Data@AllArgsConstructor@NoArgsConstructor@ToStringpublic class User { private Integer id; private String userName; private String passWord;}
UserMapper
package com.limi.springboottest2.entity;import lombok.AllArgsConstructor;import lombok.Data;import lombok.NoArgsConstructor;import lombok.ToString;@Data@AllArgsConstructor@NoArgsConstructor@ToStringpublic class User { private Integer id; private String userName; private String passWord;}
HelloController
package com.limi.springboottest2.controller;import com.limi.springboottest2.entity.User;import com.limi.springboottest2.mapper.UserMapper;import org.springframework.beans.factory.annotation.Autowired;import org.springframework.stereotype.Controller;import org.springframework.web.bind.annotation.GetMapping;import org.springframework.web.bind.annotation.PathVariable;import org.springframework.web.bind.annotation.ResponseBody;import java.util.List;@Controllerpublic class HelloController { @Autowired private UserMapper userMapper; //测试自己编写sql语句的查询方法 @ResponseBody @GetMapping("/getUser/{id}") public User test1(@PathVariable("id") Integer id){ User user = userMapper.getUserById(id); return user; } //测试mybatis-plus内置的查询方法 @ResponseBody @GetMapping("/getAllUser") public List<User> test2(){ List<User> userList = userMapper.selectList(null);//查询所有 return userList; }}
到此这篇关于SpringBoot整合Mybatis-plus的具体过程使用的文章就介绍到这了,更多相关SpringBoot整合mybatis-plus内容请搜索盛行IT以前的文章或继续浏览下面的相关文章希望大家以后多多支持盛行IT!
郑重声明:本文由网友发布,不代表盛行IT的观点,版权归原作者所有,仅为传播更多信息之目的,如有侵权请联系,我们将第一时间修改或删除,多谢。