org.springframework.data.repository.query.QueryByExampleExecutor类型无法解析.它是从所需的.class文件间接引用的

Question

早上好,我有一个头在本周结束时,我正在为springboot + angular + jpa的研究做错.

在做服务管理类时,我根据类JpaRepository的扩展类的教程使用它.

但是我无法解决的项目错误.

关注pom.xml和项目的一些图片,如果有人可以帮助我谢谢你!

<?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>marco.prova</groupId>
<artifactId>apiweb</artifactId>
<version>0.0.1-SNAPSHOT</version>
<packaging>war</packaging>

<name>apiweb</name>
<description>Demo project for Spring Boot</description>

<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.0.0.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-web</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.data</groupId>
<artifactId>spring-data-jpa</artifactId>
<version>2.0.5.RELEASE</version>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-tomcat</artifactId>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.springframework.data</groupId>
<artifactId>spring-data-jpa</artifactId>
</dependency>
</dependencies>

<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
</plugins>
</build>


</project>

在STS中投影图像.

https://uploaddeimagens.com.br/imagens/1-png-6e078f12-f26b-4266-8030-520f0f0fe7d1

https://uploaddeimagens.com.br/imagens/2-png-2224373b-2cec-46dc-b986-e68876ef57db

https://uploaddeimagens.com.br/imagens/3-png-740ac73d-5bd4-4f45-9394-c2717d4a9423

https://uploaddeimagens.com.br/imagens/4-png-9202635e-5a30-4f58-a862-70d3e9034ec6

我在等待!谢谢!

Answer 1

或者您可以尝试从C:\ Users\User\.m2文件夹中删除org.springframework.data文件夹并更新Maven项目

Answer 2

无法解析 org.springframework.data.repository.query.QueryByExampleExecutor 类型。它是从所需的 .class 文件间接引用的

您需要下载Spring data commons jar并将其保存在您的类路径中。

或者在你的 POM 中添加以下依赖项：

<dependency>
    <groupId>org.springframework.data</groupId>
    <artifactId>spring-data-commons</artifactId>
    <version>2.0.5.RELEASE</version>
</dependency>