SpringBoot------集成MyBatis

2021-07-14 19:07

阅读：665

标签：provided name .so 热部署推荐启动 style mapping string

1.pom.xml文件添加MyBatis和MySQL等依赖

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 http://maven.apache.org/maven-v4_0_0.xsd">
  modelVersion>4.0.0modelVersion>
  groupId>cn.itsourcegroupId>
  artifactId>springboot-shopartifactId>
  packaging>warpackaging>
  version>0.0.1-SNAPSHOTversion>
  name>springboot-shop Maven Webappname>
  url>http://maven.apache.orgurl>
  
  
  parent>
      groupId>org.springframework.bootgroupId>
      artifactId>spring-boot-starter-parentartifactId>
      version>1.5.9.RELEASEversion>
  parent>
  
  properties>
      java.version>1.8java.version>
      project.build.sourceEncoding>UTF-8project.build.sourceEncoding>  
    maven.compiler.encoding>UTF-8maven.compiler.encoding>  
  properties>
  
  dependencies>
    dependency>
          groupId>org.springframework.bootgroupId>
          artifactId>spring-boot-starter-webartifactId>
      dependency>
      dependency>
          groupId>javax.servletgroupId>
          artifactId>javax.servlet-apiartifactId>
          scope>providedscope>
      dependency>
      
      dependency>
          groupId>javax.servletgroupId>
          artifactId>jstlartifactId>
      dependency>
      
      dependency>
          groupId>org.springframework.bootgroupId>
          artifactId>spring-boot-starter-tomcatartifactId>
          scope>providedscope>
      dependency>
      dependency>
          groupId>org.apache.tomcat.embedgroupId>
        artifactId>tomcat-embed-jasperartifactId>
      dependency>
      
      dependency>
          groupId>com.alibabagroupId>
          artifactId>fastjsonartifactId>
          version>1.2.15version>
      dependency>
      
      
      dependency>
          groupId>mysqlgroupId>
          artifactId>mysql-connector-javaartifactId>
      dependency>
      
      
      
      dependency>
          groupId>org.mybatis.spring.bootgroupId>
          artifactId>mybatis-spring-boot-starterartifactId>
          version>1.3.1version>
      dependency>
      
      
      
      dependency>
          groupId>com.github.pagehelpergroupId>
          artifactId>pagehelperartifactId>
          version>4.1.0version>
      dependency>
      
      
      dependency>
          groupId>org.springframework.bootgroupId>
          artifactId>spring-boot-starter-data-jpaartifactId>
      dependency>
      
      
      
      
      dependency>
          groupId>org.springframework.bootgroupId>
          artifactId>spring-boot-starter-thymeleafartifactId>
      dependency>
      
      
      dependency>
          groupId>org.springframework.bootgroupId>
          artifactId>spring-boot-devtoolsartifactId>
          optional>trueoptional>
          scope>truescope>
      dependency>
  dependencies>
  
  build>
    finalName>myshopfinalName>
    
    plugins>
        plugin>
            groupId>org.springframework.bootgroupId>
            artifactId>spring-boot-maven-pluginartifactId>
            configuration>
                
                fork>truefork>
            configuration>
        plugin>
    plugins>
  build>
project>

2.修改application.properties的MySQL配置

server.port=8080

spring.mvc.view.prefix=/WEB-INF/jsp/
spring.mvc.view.suffix=.jsp


#thymeleaf
#spring.thymeleaf.prefix=classpath:/templates/
#spring.thymeleaf.suffix=.html
#spring.thymeleaf.mode=HTML5
#spring.thymeleaf.encoding=UTF-8
#spring.thymeleaf.content-type=text/html; charset=utf-8
#spring.thymeleaf.cache=false



#jpa
spring.datasource.url=jdbc:mysql://localhost:3306/shop?useUnicode=true&characterEncoding=utf-8&useSSL=false
spring.datasource.username=root
spring.datasource.password=123456
spring.datasource.driver-class-name=com.mysql.jdbc.Driver
spring.datasource.tomcat.max-active=20
spring.datasource.tomcat.max-idle=8
spring.datasource.tomcat.min-idle=8
spring.datasource.tomcat.initial-size=10


spring.jpa.database=MYSQL
spring.jpa.show-sql=true
spring.jpa.hibernate.ddl-auto=update
spring.jpa.hibernate.naming.strategy=org.hibernate.cfg.ImprovedNamingStrategy
spring.jpa.properties.hibernate.dialect=org.hibernate.dialect.MySQL5Dialect

技术分享图片

3.添加测试类

package myshop.bean;

import javax.persistence.Entity;
import javax.persistence.GeneratedValue;
import javax.persistence.GenerationType;
import javax.persistence.Id;

import org.hibernate.annotations.GenericGenerator;

@Entity
public class UserInfo {
    @Id 
    @GeneratedValue(strategy=GenerationType.AUTO)
    private int id;
    private String username;
    private String password;
    
    public int getId() {
        return id;
    }
    public void setId(int id) {
        this.id = id;
    }
    public String getUsername() {
        return username;
    }
    public void setUsername(String username) {
        this.username = username;
    }
    public String getPassword() {
        return password;
    }
    public void setPassword(String password) {
        this.password = password;
    }
}

4. 添加MyBatisMapper

package myshop.mapper;

import java.util.List;

import myshop.bean.UserInfo;
import org.apache.ibatis.annotations.Select;

public interface MyBatisMapper {
    //#{name}是参数占位符
    @Select("select * from user_info where username = #{username}")
    public List likeName(String username);
    
    @Select("select * from user_info where id = #{id}")
    public UserInfo getById(int id);
    
    @Select("select name from user_info where id = #{id}")
    public String getNameById(int id);
}

5.添加MyBatisService

package myshop.service;

import java.util.List;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

import myshop.bean.UserInfo;
import myshop.mapper.MyBatisMapper;

@Service
public class MyBatisService {
    @Autowired
    private MyBatisMapper myBatisMapper;
    
    public List likeName(String username)
    {
        return myBatisMapper.likeName(username);
    }
}

6.添加MyBatisController

package myshop.controller;

import java.util.List;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;

import myshop.bean.UserInfo;
import myshop.service.MyBatisService;

@RestController
public class MyBatisController {
     @Autowired
     private MyBatisService myBatisService;
     
     @RequestMapping("likeName")
     public List likeName(String username)
     {
         return myBatisService.likeName(username);
     }
}

7.添加启动类

package myshop;

import org.mybatis.spring.annotation.MapperScan;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.boot.autoconfigure.web.HttpMessageConverters;
import org.springframework.context.annotation.Bean;
import org.springframework.http.converter.HttpMessageConverter;

import com.alibaba.fastjson.serializer.SerializerFeature;
import com.alibaba.fastjson.support.config.FastJsonConfig;
import com.alibaba.fastjson.support.spring.FastJsonHttpMessageConverter;

/*
 * 扫描该包下相应的class，主要是MyBatis的持久化类
 * 
 * */
@SpringBootApplication
@MapperScan("myshop.mapper")
public class App {
    public HttpMessageConverters fastJsonHttpMessageConverter()
    {
        FastJsonHttpMessageConverter fastConverter = new FastJsonHttpMessageConverter();
        FastJsonConfig fastConfig = new FastJsonConfig();
        fastConfig.setSerializerFeatures(SerializerFeature.PrettyFormat);
        fastConverter.setFastJsonConfig(fastConfig);
        
        HttpMessageConverter> converts = fastConverter;
        return new HttpMessageConverters(converts);
    }
    
    public static void main(String[] args) {
        // TODO Auto-generated method stub
        SpringApplication.run(App.class, args);
    }

}

8.添加数据库shop和表user_info

技术分享图片

9.运行，访问地址即可

http://localhost:8080/likeName?username=玉天恒

SpringBoot------集成MyBatis

标签：provided name .so 热部署推荐启动 style mapping string

原文地址：https://www.cnblogs.com/tianhengblogs/p/9537665.html

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