我正在尝试在micronaut和groovy中创建一个CRUD应用程序,我正在使用休眠和GORM进行验证,保存,删除等操作,并使用mySql数据库和@Transactional。
当我运行应用程序时,它运行良好,但是在mysql中没有初始化表。在发送发布请求以将数据保存到数据库时,出现以下错误
5:54:48.840 [nioEventLoopGroup-1-3]错误i.m.h.s.netty.RoutingInBoundHandler-发生意外错误:无法准备语句 org.hibernate.exception.SQLGrammarException:无法准备语句
由以下原因引起:org.h2.jdbc.JdbcSQLException:找不到表“ STUDENT”; SQL语句: 从学生this_中选择this_.id作为y0_,其中this_.name =?极限? [42102-196]
@Entity
class Student {
String name
int age
String gender
String number
static constraints = {
name nullable:false, blank:false,unique:true
age nullable:true,blank:true,size: 1..5
gender nullable:true,blank:true
number size: 11..13,blank:true,unique:true,nullable:true
}
}
@Transactional(readOnly = true)
@Controller("/")
class StudntController {
@Post("/save")
@Transactional
def save(@Body Object JSON)
{
def result = [:]
Student stu = new Student(name:
JSON?.name,gender:JSON?.gender)
stu.save(flush: true,failOnError: true)
result.put("Student",stu)
result.put("Message", "Student created successfully")
}
}
micronaut:
application:
name: mincronaut-crud
server:
port: 8080
---
hibernate:
cache:
queries: false
use_second_level_cache: false
use_query_cache: false
environments:
development:
dataSource:
dbCreate: update
pooled: true
jmxExport: true
driverClassName: com.mysql.jdbc.Driver
username: admin
password: qwerzxcv123
dialect: org.hibernate.dialect.MySQL5InnoDBDialect
url: jdbc:mysql://192.168.1.121:3306/student
test:
dataSource:
dbCreate: update
url: jdbc:mysql://192.168.1.121:3306/student
production:
dataSource:
dbCreate: update
url: jdbc:mysql://192.168.1.121:3306/student
plugins {
id "io.spring.dependency-management" version "1.0.6.RELEASE"
id "com.github.johnrengelman.shadow" version "4.0.2"
}
apply plugin:"application"
apply plugin:"groovy"
version "0.1"
group "mincronaut.crud"
repositories {
mavenLocal()
mavenCentral()
maven { url "https://jcenter.bintray.com" }
}
ext {
gormVersion = '6.1.9.RELEASE'
h2Version = '1.4.196'
tomcatJdbcVersion = '8.5.28'
}
dependencyManagement {
imports {
mavenBom 'io.micronaut:micronaut-bom:1.0.1'
}
}
dependencies {
compile "io.micronaut:micronaut-http-client"
compile "io.micronaut:micronaut-http-server-netty"
compile "io.micronaut:micronaut-runtime-groovy"
compile "io.micronaut:micronaut-validation"
compile "io.micronaut.configuration:micronaut-hibernate-gorm"
compileOnly "io.micronaut:micronaut-inject-groovy"
compile "org.grails:grails-datastore-gorm-
hibernate5:$gormVersion"
runtime "org.apache.tomcat:tomcat-jdbc:$tomcatJdbcVersion"
runtime 'mysql:mysql-connector-java:6.0.6'
runtime "ch.qos.logback:logback-classic:1.2.3"
runtime "com.h2database:h2:$h2Version"
testCompile "io.micronaut:micronaut-inject-groovy"
testCompile("org.spockframework:spock-core") {
exclude group: "org.codehaus.groovy", module: "groovy-all"
}
testCompile "junit:junit:4.12"
testCompile "io.micronaut:micronaut-inject-java"
testCompile "org.hamcrest:hamcrest-all:1.3"
}
shadowJar {
mergeServiceFiles()
}
run.jvmArgs('-noverify', '-XX:TieredStopAtLevel=1')
mainClassName = "mincronaut.crud.Application"
tasks.withType(GroovyCompile) {
groovyOptions.forkOptions.jvmArgs.add('-
Dgroovy.parameters=true')
}
为什么运行后的代码没有在数据库中创建任何表,为什么即使我的应用程序中的URL为mysql配置并且我还在build.gradle中提供了mysql插件,它仍选择h2数据库。请帮助我在micronaut中使用gorm和groovy正确配置mysql。
答案 0 :(得分:0)
我刚刚使用MySQL进行了此工作。您可以参考这篇文章:
Micronaut MySQL delete record org.hibernate.HibernateException: No Session found for current thread