eclipse中搭建springboot学习（7）---JPA使用1

在pom.xml中引入jar包

<?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 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>

<groupId>com.example</groupId>
<artifactId>demo</artifactId>
<version>0.0.1-SNAPSHOT</version>
<packaging>jar</packaging>

<name>demo</name>
<description>Demo project for Spring Boot</description>

<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.0.6.RELEASE</version>
<relativePath/> 
</parent>

<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
<java.version>1.8</java.version>
</properties>

<dependencies>

<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-thymeleaf</artifactId>
</dependency>

<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</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-starter-data-jpa</artifactId>
</dependency>



<dependency>
<groupId>org.mybatis.spring.boot</groupId>
<artifactId>mybatis-spring-boot-starter</artifactId>
<version>1.1.1</version>
</dependency>


<dependency>
<groupId>com.oracle</groupId>
<artifactId>ojdbc6</artifactId>
<version>11.2.0.1.0</version>
</dependency>


<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-devtools</artifactId>
<optional>true</optional>
</dependency>
</dependencies>

<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
<configuration>
<fork>true</fork>
</configuration>
</plugin>
</plugins>
</build>

</project>

application.properties中添加配置

server.port=8089
spring.datasource.driver-class-name=oracle.jdbc.driver.OracleDriver
spring.datasource.url= jdbc:oracle:thin:@192.168.200.61:1521:XXX
spring.datasource.username=XXX
spring.datasource.password=XXX
spring.jpa.hibernate.ddl-auto=update
spring.jpa.show-sql=true
mybatis.mapper-locations=classpath:mapper/*.xml
#如果实体对应的表不存在，会自动创建
spring.jpa.properties.hibernate.hbm2ddl.auto=update

PersonDTO

package com.example.demo1019.dto;

import javax.persistence.Column;
import javax.persistence.Entity;
import javax.persistence.GeneratedValue;
import javax.persistence.Id;
import javax.persistence.Table;

@Table(name = "person")
@Entity
public class PersonDTO {
@Id
@GeneratedValue
// 这里的id必须为int类型，采用自增长的顺序往数据库添加，并且注意引用正确的包，否则会报错
private int id;

@Column(name = "name", nullable = true, length = 20)
private String name;

@Column(name = "age", nullable = true, length = 4)
private int age;

public int getId() {
return id;
}

public void setId(int 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;
}

}

PersonRepository

package com.example.demo1019.dao;

import org.springframework.data.jpa.repository.JpaRepository;

import com.example.demo1019.dto.PersonDTO;

public interface PersonRepository extends JpaRepository<PersonDTO, Long> {

}

新建PersonService

package com.example.demo1019.service;

import java.util.List;

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

import com.example.demo1019.dao.PersonRepository;
import com.example.demo1019.dto.PersonDTO;

@Service
public class PersonService {
@Autowired
private PersonRepository personRepository;

public List<PersonDTO> findAll() {
return (List<PersonDTO>) personRepository.findAll();
}

public void save(PersonDTO personDTO) {
personDTO = new PersonDTO();
personDTO.setAge(26);
personDTO.setName("啾啾");
personRepository.save(personDTO);
}

public void deletePerson(Long id) {
personRepository.deleteById(id);
}
}

PersonController

package com.example.demo1019.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 com.example.demo1019.dto.PersonDTO;
import com.example.demo1019.service.PersonService;

@Controller
public class PersonController {
@Autowired
private PersonService personService;

@RequestMapping("/getPersonList")
@ResponseBody
public List<PersonDTO> getPersonList() {
return personService.findAll();
}

@RequestMapping("/addPerson")
@ResponseBody
public String addPerson(PersonDTO personDTO) {
personService.save(personDTO);
return "添加成功";
}

@RequestMapping("/deletePerson/{id}")
@ResponseBody
public String deletePerson(@PathVariable("id") Long id) {
personService.deletePerson(id);
return "删除成功";
}
}

整体路径如下：

eclipse中搭建springboot学习（7）---JPA使用1

猜你喜欢