SpringBoot———整合Mybatis-注解形式

SpringBoot———整合Mybatis-注解形式，

添加依赖

pom.xml

<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/xsd/maven-4.0.0.xsd">
  <modelVersion>4.0.0</modelVersion>
  <parent>
    <groupId>net.zzqd</groupId>
    <artifactId>SpringBoot_Parent</artifactId>
    <version>0.0.1-SNAPSHOT</version>
  </parent>
  <artifactId>SpringBoot-Child1</artifactId>
  
  
  <dependencies>
  	<dependency>
  		<groupId>org.springframework.boot</groupId>
  		<artifactId>spring-boot-starter-web</artifactId>
  	</dependency>
  
  	
<!--   	加入依赖，代码做修改，可以不用重新运行 -->
  	<dependency>
  		<groupId>org.springframework</groupId>
  		<artifactId>springloaded</artifactId>
  	</dependency>
  	<dependency>
  		<groupId>org.springframework.boot</groupId>
  		<artifactId>spring-boot-devtools</artifactId>
  	</dependency>
<!--   	springboot整合mybatis -->
	<dependency>
		<groupId>org.mybatis.spring.boot</groupId>
		<artifactId>mybatis-spring-boot-starter</artifactId>
		<version>1.3.1</version>
	</dependency>
	<dependency>
  		<groupId>mysql</groupId>
  		<artifactId>mysql-connector-java</artifactId>
  		<version>8.0.11</version>
  	</dependency>
<!--   	mybatis的分页 -->
  	<dependency>
  		<groupId>com.github.pagehelper</groupId>
  		<artifactId>pagehelper-spring-boot-starter</artifactId>
  		<version>1.2.7</version>
  	</dependency>
  </dependencies>
</project>

application.properties

spring.datasource.driver-class-name=com.mysql.cj.jdbc.Driver
spring.datasource.url: jdbc:mysql://localhost:3306/ssm?useSSL=false&serverTimezone=UTC
spring.datasource.username: root
spring.datasource.password: root

持久层

pojo

package net.zzqd.pojo;

public class Customer {
	private Integer id;
	private String name;
	private String gender;
	private String telephone;
	private String address;
	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 String getGender() {
		return gender;
	}
	public void setGender(String gender) {
		this.gender = gender;
	}
	public String getTelephone() {
		return telephone;
	}
	public void setTelephone(String telephone) {
		this.telephone = telephone;
	}
	public String getAddress() {
		return address;
	}
	public void setAddress(String address) {
		this.address = address;
	}
	
}

Mapper

package net.zzqd.mapper;

import java.util.List;

import org.apache.ibatis.annotations.Delete;
import org.apache.ibatis.annotations.Insert;
import org.apache.ibatis.annotations.Param;
import org.apache.ibatis.annotations.Select;
import org.apache.ibatis.annotations.Update;

import net.zzqd.pojo.Customer;

public interface CustomerMapper
{
	/**
	 * 查询所有数据
	 */
	public List<Customer> findAll();

	/**
	 * 保存数据
	 * @param customer
	 */
	@Insert("insert into t_customer (name,gender,telephone,address) values(#{name},#{gender},#{telephone},#{address}")
	public void save(Customer customer);
	/**
	 * 根据id查询对象
	 * @param id
	 * @return
	 */
	@Select("select * from t_customer where id=#{id}")
	public Customer findById(@Param("name")Integer id);

	/**
	 * 修改对象数据
	 * @param customer
	 */
	@Update("update(#{name},#{gender},#{telephone},#{address}) set t_customer where id=#{id}")
	public void update(Customer customer);

	/**
	 * 删除数据
	 * @param id
	 */
	@Delete("delete from t_customer where id=#{id}")
	public void delete(Integer[] id);

	
}

业务层

Service

package net.zzqd.service;

import java.util.List;

import net.zzqd.pojo.Customer;

public interface CustomerService {
	//添加用户
	void addCustomer(Customer customer);
	
	Customer findById(Integer id);
	//分页查找
	List<Customer> findCustomer(int page,int rows);
}

ServiceImpl

package net.zzqd.service;

import java.util.List;

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

import com.github.pagehelper.PageHelper;

import net.zzqd.mapper.CustomerMapper;
import net.zzqd.pojo.Customer;

@Service
public class CustomerServiceImpl implements CustomerService {

	@Autowired
	private CustomerMapper customerMapper;
	
	@Override
	public void addCustomer(Customer customer) {
		
		customerMapper.save(customer);
	}

	@Override
	public List<Customer> findCustomer(int page, int rows) {
		List<Customer> customers = customerMapper.findAll();
		PageHelper.startPage(page, rows);
		
		return customers;
	}

	@Override
	public Customer findById(Integer id) {
		
		return customerMapper.findById(id);
	}
}

控制层

package net.zzqd.controller;

import java.util.List;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.ResponseBody;
import org.springframework.web.bind.annotation.RestController;

import net.zzqd.pojo.Customer;
import net.zzqd.service.CustomerService;

@RestController
public class CustomerController {
	@Autowired
	private CustomerService customerService;
	
	@RequestMapping("/saveCustomer")
//	@ResponseBody
	public String saveCustomer()
	{
		Customer customer = new Customer();
		customer.setName("张张");
		customer.setGender("女");
		customer.setAddress("郑州");
		customer.setTelephone("18888885284");
		
		customerService.addCustomer(customer);
		return "success";
	}
	
	@RequestMapping("/findCustomer/{page}/{rows}")
//	@ResponseBody
	public List<Customer> findCustomer(@PathVariable int page, @PathVariable int rows)
	{
		return customerService.findCustomer(page, rows);
	}
	
	@RequestMapping("/findCustomer")
//	@ResponseBody
	public Customer findCustomer(Integer id)
	{
		return customerService.findById(id);
	}
}

运行

package net.zzqd.app;

import org.mybatis.spring.annotation.MapperScan;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.EnableAutoConfiguration;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.context.annotation.ComponentScan;

//@EnableAutoConfiguration
//@ComponentScan("net.zzqd.controller")
//默认情况下扫描的是当前包以及当前包的子包
@SpringBootApplication(scanBasePackages= {"net.zzqd"})//组合注解
@MapperScan("net.zzqd.mapper")
public class SpringApplications {
	public static void main(String[] args)
	{
		SpringApplication.run(SpringApplications.class, args);
	}
}