[英]Java QueryDsl code generation does not generate Q class
我正在制作一個 Spring 項目,我在其中使用 QueryDsl 作為實體。 我從幾個月前開始着手這個項目,在那里我已經有了 1 個生成的類 (QUser)。 現在我創建了一個名為 Permission 的新實體,並修改了 User 實體。 當我構建項目時, QUser 不會更改,並且 QPermission 類也不會生成。 我究竟做錯了什么? 這是 QueryDsl 的實體和 pom.xml。
@Entity
@Table(name = "permission")
public class Permission {
@Id
@GeneratedValue(strategy = GenerationType.IDENTITY)
private Long id;
@Column(name = "name", length = 100, nullable = false)
private String name;
public Long getId() {
return id;
}
public void setId(Long id) {
this.id = id;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
}
和 pom.xml:
[..]
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
<plugin>
<groupId>com.mysema.maven</groupId>
<artifactId>apt-maven-plugin</artifactId>
<version>1.1.3</version>
<executions>
<execution>
<goals>
<goal>process</goal>
</goals>
<configuration>
<outputDirectory>target/generated-sources/java</outputDirectory>
<processor>com.querydsl.apt.jpa.JPAAnnotationProcessor</processor>
</configuration>
</execution>
</executions>
</plugin>
</plugins>
</build>
[...]
我正在關注文檔: http ://www.querydsl.com/static/querydsl/3.2.0/reference/html/ch03s03.html 我正在使用 IntellIJ IDEA 並嘗試了“重建項目”選項。
你能顯示你放在 pom.xml 中的依賴項嗎?
我從頭開始做了一些測試
以下是依賴項:
<dependencies>
...
<dependency>
<groupId>com.querydsl</groupId>
<artifactId>querydsl-apt</artifactId>
<version>4.2.1</version>
</dependency>
<dependency>
<groupId>com.querydsl</groupId>
<artifactId>querydsl-jpa</artifactId>
<version>4.2.1</version>
</dependency>
...
</dependencies>
和插件:
<plugin>
<groupId>com.mysema.maven</groupId>
<artifactId>apt-maven-plugin</artifactId>
<version>1.1.3</version>
<executions>
<execution>
<phase>generate-sources</phase>
<goals>
<goal>process</goal>
</goals>
<configuration>
<outputDirectory>${project.build.directory}/generated-sources</outputDirectory>
<processor>com.querydsl.apt.jpa.JPAAnnotationProcessor</processor>
</configuration>
</execution>
</executions>
</plugin>
我嘗試生成 QFiles 的完整源代碼有效:
https://github.com/githubjul/test-so-querydsl
我不運行該項目,只編譯它以驗證它是否有效。
這是一個工作pom.xml
<project xmlns="http://maven.apache.org/POM/4.0.0"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>org.hello</groupId>
<artifactId>querydsl</artifactId>
<version>0.0.1-SNAPSHOT</version>
<packaging>jar</packaging>
<name>querydsl</name>
<url>http://maven.apache.org</url>
<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<querydsl.version>4.1.0</querydsl.version>
</properties>
<dependencies>
<dependency>
<groupId>com.querydsl</groupId>
<artifactId>querydsl-apt</artifactId>
<version>${querydsl.version}</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>com.querydsl</groupId>
<artifactId>querydsl-jpa</artifactId>
<version>${querydsl.version}</version>
</dependency>
<!-- https://mvnrepository.com/artifact/org.hibernate.javax.persistence/hibernate-jpa-2.0-api -->
<dependency>
<groupId>org.hibernate.javax.persistence</groupId>
<artifactId>hibernate-jpa-2.0-api</artifactId>
<version>1.0.1.Final</version>
</dependency>
<dependency>
<groupId>org.slf4j</groupId>
<artifactId>slf4j-log4j12</artifactId>
<version>1.6.1</version>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<artifactId>maven-compiler-plugin</artifactId>
<version>3.7.0</version>
<configuration>
<source>1.8</source>
<target>1.8</target>
</configuration>
</plugin>
<plugin>
<groupId>com.mysema.maven</groupId>
<artifactId>apt-maven-plugin</artifactId>
<version>1.1.3</version>
<executions>
<execution>
<goals>
<goal>process</goal>
</goals>
<configuration>
<outputDirectory>target/generated-sources</outputDirectory>
<processor>com.querydsl.apt.jpa.JPAAnnotationProcessor</processor>
</configuration>
</execution>
</executions>
</plugin>
</plugins>
</build>
</project>
和生成的類:
/**
* QPermission is a Querydsl query type for Permission
*/
@Generated("com.querydsl.codegen.EntitySerializer")
public class QPermission extends EntityPathBase<Permission> {
private static final long serialVersionUID = -479242270L;
public static final QPermission permission = new QPermission("permission");
public final NumberPath<Long> id = createNumber("id", Long.class);
public final StringPath name = createString("name");
public QPermission(String variable) {
super(Permission.class, forVariable(variable));
}
public QPermission(Path<? extends Permission> path) {
super(path.getType(), path.getMetadata());
}
public QPermission(PathMetadata metadata) {
super(Permission.class, metadata);
}
}
添加以下依賴項對我有用:
<dependency>
<groupId>com.mysema.querydsl</groupId>
<artifactId>querydsl-jpa</artifactId>
<version>3.7.4</version>
</dependency>
您可以在此處查找最新版本:
https://mvnrepository.com/artifact/com.mysema.querydsl/querydsl-jpa
我在使用 IntelliJ 時遇到了這個問題。
以下步驟對我有用:
這似乎奏效了。
聲明:本站的技術帖子網頁,遵循CC BY-SA 4.0協議,如果您需要轉載,請注明本站網址或者原文地址。任何問題請咨詢:yoyou2525@163.com.