油管-用micronaut创建crud项目

通过 micronaut 官方孵化器创建项目

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 http://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>
    <groupId>org.malred</groupId>
    <artifactId>crud</artifactId>
    <version>0.1</version>
    <packaging>${packaging}</packaging>

    <parent>
        <groupId>io.micronaut</groupId>
        <artifactId>micronaut-parent</artifactId>
        <version>3.9.2</version>
    </parent>

    <properties>
        <packaging>jar</packaging>
        <jdk.version>11</jdk.version>
        <release.version>11</release.version>
        <micronaut.version>3.9.2</micronaut.version>
        <micronaut.data.version>3.10.0</micronaut.data.version>
        <micronaut.runtime>tomcat</micronaut.runtime>
        <exec.mainClass>org.malred.Application</exec.mainClass>
    </properties>

    <repositories>
        <repository>
            <id>central</id>
            <url>https://repo.maven.apache.org/maven2</url>
        </repository>
    </repositories>

    <dependencies>
        <dependency>
            <groupId>io.micronaut</groupId>
            <artifactId>micronaut-http-client</artifactId>
            <scope>compile</scope>
        </dependency>
        <dependency>
            <groupId>io.micronaut</groupId>
            <artifactId>micronaut-jackson-databind</artifactId>
            <scope>compile</scope>
        </dependency>
        <dependency>
            <groupId>io.micronaut.data</groupId>
            <artifactId>micronaut-data-hibernate-jpa</artifactId>
            <scope>compile</scope>
        </dependency>
        <dependency>
            <groupId>io.micronaut.servlet</groupId>
            <artifactId>micronaut-http-server-tomcat</artifactId>
            <scope>compile</scope>
        </dependency>
        <dependency>
            <groupId>io.micronaut.sql</groupId>
            <artifactId>micronaut-hibernate-jpa</artifactId>
            <scope>compile</scope>
        </dependency>
        <dependency>
            <groupId>io.micronaut.sql</groupId>
            <artifactId>micronaut-jdbc-hikari</artifactId>
            <scope>compile</scope>
        </dependency>
        <dependency>
            <groupId>jakarta.annotation</groupId>
            <artifactId>jakarta.annotation-api</artifactId>
            <scope>compile</scope>
        </dependency>
        <dependency>
            <groupId>ch.qos.logback</groupId>
            <artifactId>logback-classic</artifactId>
            <scope>runtime</scope>
        </dependency>
        <dependency>
            <groupId>com.h2database</groupId>
            <artifactId>h2</artifactId>
            <scope>runtime</scope>
        </dependency>
        <dependency>
            <groupId>org.projectlombok</groupId>
            <artifactId>lombok</artifactId>
            <scope>provided</scope>
        </dependency>
        <dependency>
            <groupId>io.micronaut.test</groupId>
            <artifactId>micronaut-test-junit5</artifactId>
            <scope>test</scope>
        </dependency>
        <dependency>
            <groupId>org.junit.jupiter</groupId>
            <artifactId>junit-jupiter-api</artifactId>
            <scope>test</scope>
        </dependency>
        <dependency>
            <groupId>org.junit.jupiter</groupId>
            <artifactId>junit-jupiter-engine</artifactId>
            <scope>test</scope>
        </dependency>
    </dependencies>

    <build>
        <plugins>
            <plugin>
                <groupId>io.micronaut.build</groupId>
                <artifactId>micronaut-maven-plugin</artifactId>
            </plugin>

            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-compiler-plugin</artifactId>
                <configuration>
                    <!-- Uncomment to enable incremental compilation -->
                    <!-- <useIncrementalCompilation>false</useIncrementalCompilation> -->

                    <annotationProcessorPaths combine.self="override">
                        <path>
                            <groupId>org.projectlombok</groupId>
                            <artifactId>lombok</artifactId>
                            <version>${lombok.version}</version>
                        </path>
                        <path>
                            <groupId>io.micronaut</groupId>
                            <artifactId>micronaut-inject-java</artifactId>
                            <version>${micronaut.version}</version>
                        </path>
                        <path>
                            <groupId>io.micronaut.data</groupId>
                            <artifactId>micronaut-data-processor</artifactId>
                            <version>${micronaut.data.version}</version>
                        </path>
                        <path>
                            <groupId>io.micronaut</groupId>
                            <artifactId>micronaut-graal</artifactId>
                            <version>${micronaut.version}</version>
                        </path>
                        <path>
                            <groupId>io.micronaut</groupId>
                            <artifactId>micronaut-http-validation</artifactId>
                            <version>${micronaut.version}</version>
                        </path>
                        <path>
                            <groupId>io.micronaut</groupId>
                            <artifactId>micronaut-validation</artifactId>
                            <version>${micronaut.version}</version>
                        </path>
                    </annotationProcessorPaths>
                    <compilerArgs>
                        <arg>-Amicronaut.processing.group=org.malred</arg>
                        <arg>-Amicronaut.processing.module=crud</arg>
                    </compilerArgs>
                </configuration>
            </plugin>
        </plugins>
    </build>

</project>

model

package org.malred.model;

import lombok.AllArgsConstructor;
import lombok.Data;
import lombok.NoArgsConstructor;

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

@Entity
@Data
@NoArgsConstructor
@AllArgsConstructor
public class Student {
    @Id
    @GeneratedValue(strategy= GenerationType.AUTO)
    private Integer roll;

    private String firstName;
    private String lastName;
    private Integer standard;
}

repository

package org.malred.repository;

import io.micronaut.data.annotation.Repository;
import io.micronaut.data.repository.CrudRepository;
import org.malred.model.Student;

@Repository
public interface StudentRepository extends CrudRepository<Student,Integer> {
}

controller

package org.malred.controller;

import io.micronaut.http.annotation.*;
import lombok.RequiredArgsConstructor;
import org.malred.model.Student;
import org.malred.repository.StudentRepository;

import java.util.Optional;

@Controller(value = "/student")
@RequiredArgsConstructor
public class StudentController {
    private final StudentRepository student;

    @Get("/all")
    public Iterable<Student> all() {
        return student.findAll();
    }

    @Post("/create")
    public Student createWithBody(@Body Student student) {
        return this.student.save(student);
    }

    @Put("/update")
    public Student updateWithBody(@Body Student student) {
        Optional<Student> studentByRoll = this.student.findById(student.getRoll());
        Student entity = studentByRoll.get();
        entity.setFirstName(student.getFirstName());
        entity.setLastName(student.getLastName());
        entity.setStandard(student.getStandard());
        return this.student.update(entity);
    }

    @Delete("/delete")
    public Iterable<Student> deleteWithBody(@Body Student student) {
        Optional<Student> studentByRoll = this.student.findById(student.getRoll());
        Student entity = studentByRoll.get();
        this.student.delete(entity);
        return this.student.findAll();
    }
}

application

package org.malred;

import io.micronaut.runtime.Micronaut;

public class Application {

    public static void main(String[] args) {
        Micronaut.run(Application.class, args);
    }
}

application.yml

micronaut:
  application:
    name: crud
datasources:
  default:
    url: jdbc:h2:mem:devDb;LOCK_TIMEOUT=10000;DB_CLOSE_ON_EXIT=FALSE
    username: sa
    password: ""
    driver-class-name: org.h2.Driver
    dialect: H2
jpa.default.properties.hibernate.hbm2ddl.auto: update
jpa:
  default:
    properties:
      hibernate:
        hbm2ddl:
          auto: update

run

mvnw mn:run