如何解决Spring Boot Vaadin 验证不起作用 - 为什么？
我将 Vaadin 14 与 Vaadin CRUD AddOns 一起使用，但我的验证似乎对我不起作用。
如果我打开我的 CRUD 视图并查看这两个字段。它们是空字符串，例如 null。我想收到一个错误“不能为空”。但在这里，我完全没有发现任何错误。
我的实体看起来像这样。
@Entity(name = "Data")
@Data
public class Data {
@Id
@GeneratedValue(strategy = GenerationType.IDENTITY)
private long id;
@NotNull
private String OrderNumber;
@NotNull
private String SerialNumber;
如果我尝试保存到我的数据库，它看起来像这样。
Caused by: javax.validation.ConstraintViolationException: Validation failed for classes [se.danielmartensson.entities.LX_Data] during update time for groups [javax.validation.groups.Default,]
List of constraint violations:[
ConstraintViolationImpl{interpolatedMessage='must not be null',propertyPath=SerialNumber,rootBeanClass=class se.danielmartensson.entities.Data,messageTemplate='{javax.validation.constraints.NotNull.message}'}
ConstraintViolationImpl{interpolatedMessage='must not be null',propertyPath=OrderNumber,messageTemplate='{javax.validation.constraints.NotNull.message}'}
]
这很奇怪，因为我的 pom.xml 包含 Spring Boot Starter Validation。 Vaadin 他自己说应该包括的东西：https://vaadin.com/learn/tutorials/introduction-to-java-bean-validation
<?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.application</groupId>
<artifactId>test-data</artifactId>
<name>Project base for Spring Boot and Vaadin Flow</name>
<version>1.0-SNAPSHOT</version>
<packaging>jar</packaging>
<properties>
<java.version>11</java.version>
<vaadin.version>14.5.2</vaadin.version>
</properties>
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.4.4</version>
</parent>
<repositories>
<!-- The order of definitions matters. Explicitly defining central here to make sure it has the highest priority. -->
<!-- Main Maven repository -->
<repository>
<id>central</id>
<url>https://repo.maven.apache.org/maven2</url>
<snapshots>
<enabled>false</enabled>
</snapshots>
</repository>
<!-- Repository used by many Vaadin add-ons -->
<repository>
<id>Vaadin Directory</id>
<url>https://maven.vaadin.com/vaadin-addons</url>
<snapshots>
<enabled>false</enabled>
</snapshots>
</repository>
</repositories>
<pluginRepositories>
<!-- Main Maven repository -->
<pluginRepository>
<id>central</id>
<url>https://repo.maven.apache.org/maven2</url>
<snapshots>
<enabled>false</enabled>
</snapshots>
</pluginRepository>
</pluginRepositories>
<dependencyManagement>
<dependencies>
<dependency>
<groupId>com.vaadin</groupId>
<artifactId>vaadin-bom</artifactId>
<version>${vaadin.version}</version>
<type>pom</type>
<scope>import</scope>
</dependency>
</dependencies>
</dependencyManagement>
<dependencies>
<dependency>
<groupId>com.vaadin</groupId>
<!-- Replace artifactId with vaadin-core to use only free components -->
<artifactId>vaadin</artifactId>
<exclusions>
<!-- Webjars are only needed when running in Vaadin 13 compatibility mode -->
<exclusion>
<groupId>com.vaadin.webjar</groupId>
<artifactId>*</artifactId>
</exclusion>
<exclusion>
<groupId>org.webjars.bowergithub.insites</groupId>
<artifactId>*</artifactId>
</exclusion>
<exclusion>
<groupId>org.webjars.bowergithub.polymer</groupId>
<artifactId>*</artifactId>
</exclusion>
<exclusion>
<groupId>org.webjars.bowergithub.polymerelements</groupId>
<artifactId>*</artifactId>
</exclusion>
<exclusion>
<groupId>org.webjars.bowergithub.vaadin</groupId>
<artifactId>*</artifactId>
</exclusion>
<exclusion>
<groupId>org.webjars.bowergithub.webcomponents</groupId>
<artifactId>*</artifactId>
</exclusion>
</exclusions>
</dependency>
<dependency>
<groupId>com.vaadin</groupId>
<artifactId>vaadin-spring-boot-starter</artifactId>
<exclusions>
<!-- Excluding so that webjars are not included. -->
<exclusion>
<groupId>com.vaadin</groupId>
<artifactId>vaadin-core</artifactId>
</exclusion>
</exclusions>
</dependency>
<dependency>
<groupId>org.vaadin.artur</groupId>
<artifactId>a-vaadin-helper</artifactId>
<version>1.6.0</version>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-validation</artifactId>
</dependency>
<!-- Spring Security -->
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-security</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.security</groupId>
<artifactId>spring-security-web</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.security</groupId>
<artifactId>spring-security-config</artifactId>
</dependency>
<!-- FTP Client -->
<dependency>
<groupId>commons-net</groupId>
<artifactId>commons-net</artifactId>
<version>3.8.0</version>
</dependency>
<!-- Getter & Setter -->
<dependency>
<groupId>org.projectlombok</groupId>
<artifactId>lombok</artifactId>
</dependency>
<!-- Data base -->
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-data-jpa</artifactId>
</dependency>
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
</dependency>
<!--
<dependency>
<groupId>com.microsoft.sqlserver</groupId>
<artifactId>mssql-jdbc</artifactId>
</dependency> -->
<!-- CRUD -->
<dependency>
<groupId>org.vaadin.crudui</groupId>
<artifactId>crudui</artifactId>
<version>4.3.2</version>
</dependency>
<!-- Charts -->
<dependency>
<groupId>com.github.appreciated</groupId>
<artifactId>apexcharts</artifactId>
<version>2.0.0.beta11</version>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-devtools</artifactId>
<optional>true</optional>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
<dependency>
<groupId>com.vaadin</groupId>
<artifactId>vaadin-testbench</artifactId>
<scope>test</scope>
</dependency>
<!-- Include JUnit 4 support for TestBench and others -->
<dependency>
<groupId>org.junit.vintage</groupId>
<artifactId>junit-vintage-engine</artifactId>
<scope>test</scope>
<exclusions>
<exclusion>
<groupId>org.hamcrest</groupId>
<artifactId>hamcrest-core</artifactId>
</exclusion>
</exclusions>
</dependency>
<dependency>
<groupId>io.github.bonigarcia</groupId>
<artifactId>webdrivermanager</artifactId>
<version>3.8.1</version>
<scope>test</scope>
</dependency>
</dependencies>
<build>
<defaultGoal>spring-boot:run</defaultGoal>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
<!-- Clean build and startup time for Vaadin apps sometimes may exceed
the default Spring Boot's 30sec timeout. -->
<configuration>
<wait>500</wait>
<maxAttempts>240</maxAttempts>
</configuration>
</plugin>
<!--
Take care of synchronizing java dependencies and imports in
package.json and main.js files.
It also creates webpack.config.js if not exists yet.
-->
<plugin>
<groupId>com.vaadin</groupId>
<artifactId>vaadin-maven-plugin</artifactId>
<version>${vaadin.version}</version>
<executions>
<execution>
<goals>
<goal>prepare-frontend</goal>
</goals>
</execution>
</executions>
</plugin>
</plugins>
</build>
<profiles>
<profile>
<!-- Production mode is activated using -Pproduction -->
<id>production</id>
<build>
<plugins>
<plugin>
<groupId>com.vaadin</groupId>
<artifactId>vaadin-maven-plugin</artifactId>
<version>${vaadin.version}</version>
<executions>
<execution>
<goals>
<goal>build-frontend</goal>
</goals>
<phase>compile</phase>
</execution>
</executions>
<configuration>
<productionMode>true</productionMode>
</configuration>
</plugin>
</plugins>
</build>
</profile>
<profile>
<id>it</id>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
<executions>
<execution>
<id>start-spring-boot</id>
<phase>pre-integration-test</phase>
<goals>
<goal>start</goal>
</goals>
</execution>
<execution>
<id>stop-spring-boot</id>
<phase>post-integration-test</phase>
<goals>
<goal>stop</goal>
</goals>
</execution>
</executions>
</plugin>
<!-- Runs the integration tests (*IT) after the server is started -->
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-failsafe-plugin</artifactId>
<executions>
<execution>
<goals>
<goal>integration-test</goal>
<goal>verify</goal>
</goals>
</execution>
</executions>
<configuration>
<trimStackTrace>false</trimStackTrace>
<enableAssertions>true</enableAssertions>
</configuration>
</plugin>
</plugins>
</build>
</profile>
</profiles>
</project>
我期待这样的行为。
请查看此 Web 应用程序并尝试通过按下上方的笔来更改 CRUD。尝试使用干净的文本字段进行更新。
https://alejandro.app.fi/crud-ui-demo/simple
他的实体看起来像这样。
/**
* @author Alejandro Duarte
*/
@Entity
public class User {
@NotNull
@Id
@GeneratedValue
private Long id;
@NotNull
private String name;
是的，我正在使用
crud.getCrudFormFactory().setUseBeanValidation(true);
这里：
// Configuration of the grid
GridCrud<Data> crud = new GridCrud<>(Data.class);
crud.getGrid().setColumns("orderNumber","serialNumber");
crud.getGrid().setColumnReorderingAllowed(true);
// Filter
TextField orderNumberFilter = createFilterField("Order Number",crud);
TextField serialNumberFilter = createFilterField("Serial Number",crud);
crud.getCrudLayout().addFilterComponents(orderNumberFilter,serialNumberFilter);
// Configuration of the user interface
crud.getCrudFormFactory().setUseBeanValidation(true);
crud.getCrudFormFactory().setVisibleProperties("orderNumber","serialNumber");
crud.getCrudFormFactory().setDisabledProperties("id");
解决方法
似乎根据您的 setter 和 getter，它找到了 orderNumber 和 serialNumber 属性。
但是，您将字段命名为 OrderNumber 和 SerialNumber，这不是标准命名约定。因此，它不会在这些注解和属性之间建立联系。
您可以执行以下两种操作之一：
- 将您的字段重命名为
orderNumber和serialNumber。 - 将注释移动到 getter 方法。看起来您正在使用 Lombok，因此您必须先定义这些 getter，或者可能在您的字段中使用
@Getter(onMethod_=@NotNull)。
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