由于在数据库表反向生成过程中呢,需要通过jpa自动生成表,并且这个表必须有注释…废话不多说,直接亮配置…
1.首先这是我的pom.xml配置咯,说明下,只通过jpa生成,下面的lombok,mybatis-plus,generator这三个可以不要(也可以保留),这三个是我测试工程用到的…真正需要的是:jpa,jdbc,mysql
<?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.orange.verify</groupId>
<artifactId>builder</artifactId>
<version>0.0.1-SNAPSHOT</version>
<packaging>jar</packaging>
<name>builder</name>
<description>Demo project for Spring Boot</description>
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.1.0.RELEASE</version>
<relativePath/> <!-- lookup parent from repository -->
</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-data-jpa</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-jdbc</artifactId>
</dependency>
<dependency>
<groupId>org.mybatis.generator</groupId>
<artifactId>mybatis-generator-core</artifactId>
<version>1.3.7</version>
</dependency>
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<version>5.1.40</version>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
<dependency>
<groupId>com.baomidou</groupId>
<artifactId>mybatis-plus-boot-starter</artifactId>
<version>3.0.6</version>
</dependency>
<dependency>
<groupId>org.projectlombok</groupId>
<artifactId>lombok</artifactId>
<version>1.16.18</version>
<scope>compile</scope>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
</plugins>
</build>
</project>
- 1
- 2
- 3
- 4
- 5
- 6
- 7
- 8
- 9
- 10
- 11
- 12
- 13
- 14
- 15
- 16
- 17
- 18
- 19
- 20
- 21
- 22
- 23
- 24
- 25
- 26
- 27
- 28
- 29
- 30
- 31
- 32
- 33
- 34
- 35
- 36
- 37
- 38
- 39
- 40
- 41
- 42
- 43
- 44
- 45
- 46
- 47
- 48
- 49
- 50
- 51
- 52
- 53
- 54
- 55
- 56
- 57
- 58
- 59
- 60
- 61
- 62
- 63
- 64
- 65
- 66
- 67
- 68
- 69
- 70
- 71
- 72
- 73
- 74
- 75
- 76
2.接下来是我的application.properties配置咯…数据库名称自行更改
spring.jpa.show-sql=true
spring.datasource.url=jdbc:mysql://localhost:3306/com_orange_verify_db?characterEncoding=UTF-8
spring.datasource.username=root
spring.datasource.password=root
spring.datasource.driver-class-name=com.mysql.jdbc.Driver
spring.jpa.properties.hibernate.hbm2ddl.auto=update
spring.jpa.properties.hibernate.show_sql=false
- 1
- 2
- 3
- 4
- 5
- 6
- 7
- 8
3.启动类扫描你要生成到数据的实体
@SpringBootApplication
@EntityScan(basePackages={"com.orange.verify.entity"})
public class BuilderApplication {
public static void main(String[] args) {
SpringApplication.run(BuilderApplication.class, args);
}
}
- 1
- 2
- 3
- 4
- 5
- 6
- 7
- 8
4.实体编辑
package com.orange.verify.entity;
import javax.persistence.Column;
import javax.persistence.Entity;
import javax.persistence.Id;
import javax.persistence.Table;
import java.io.Serializable;
@Entity
@Table(name = "test")
@org.hibernate.annotations.Table(appliesTo = "test",comment="我会有表注释的哟...")
public class Test implements Serializable {
private static final long serialVersionUID = 1L;
@Id
@Column(nullable = false,columnDefinition = "varchar(100) default '' comment '我是字段注释...'")
private String id;
@Column(nullable = false,columnDefinition = "int(2) comment '我是年龄注释...'")
private Integer age;
}
- 1
- 2
- 3
- 4
- 5
- 6
- 7
- 8
- 9
- 10
- 11
- 12
- 13
- 14
- 15
- 16
- 17
- 18
- 19
- 20
- 21
- 22
- 23
配置完这些,直接启动项目,就可以生成到数据库了…接下来讲讲在这个过程中学习到的东西了…
上面大家会发现了,有两个@Table,第一个@table是jpa自带的,第二个是hibernate的,必须结合使用才能生成表注释…
经过测试,如果把jpa的@table删除,生成,是无反应的(无效的)…
然后呢,在测试过程中呢,发现…直接注解到属性上面,然后不用写get set也能生成…
</div>
<link href="https://csdnimg.cn/release/phoenix/mdeditor/markdown_views-258a4616f7.css" rel="stylesheet">
</div>
WPF--TypeConverter使用
WPF---对于没有Command属性的添加以下代码可以达到有Command效果
自定义事件、属性、方法
读取Excel文件
ClickOnce安装部署,手动。
Logger 日志记录
Maven
等待与通知范式
线程状态及基本方法