Question

我正在尝试在存储库界面中使用findByFieldName生成的方法。我在编译时收到此错误：

Caused by: org.springframework.data.mapping.PropertyReferenceException: No property source found for type Article!
at org.springframework.data.mapping.PropertyPath.<init>(PropertyPath.java:77) ~[spring-data-commons-1.13.8.RELEASE.jar:na]

我的文章模型如下：

package com.infostream.models;

import javax.persistence.Entity;
import javax.persistence.Table;
import javax.validation.constraints.NotNull;

@Entity
@Table(name = "articles")
public class Article extends Base {

    private String ref_id;

    public String getRef_id() {
        return ref_id;
    }

    public void setRef_id(String ref_id) {
        this.ref_id = ref_id;
    }

    public Article() {

    }

    public Article(String source_id, String ref_id, String title, String subject, String description, String url) {
        this.source_id = source_id;
        this.ref_id = ref_id;
        this.title = title;
        this.subject = subject;
        this.description = description;
        this.url = url;
    }

    public String getSource_id() {
        return source_id;
    }

    public void setSource_id(String source_id) {
        this.source_id = source_id;
    }

    public String getTitle() {
        return title;
    }

    public void setTitle(String title) {
        this.title = title;
    }

    public String getSubject() {
        return subject;
    }

    public void setSubject(String subject) {
        this.subject = subject;
    }

    public String getDescription() {
        return description;
    }

    public void setDescription(String description) {
        this.description = description;
    }

    public String getUrl() {
        return url;
    }

    public void setUrl(String url) {
        this.url = url;
    }

    @NotNull
    private String source_id;

    @NotNull
    private String title;

    private String subject;
    private String description;

    @NotNull
    private String url;
}

我定义findByFieldName的界面如下所示：

package com.infostream.repositories;

import org.springframework.data.domain.Page;
import org.springframework.data.domain.Pageable;
import org.springframework.data.repository.PagingAndSortingRepository;

import com.infostream.models.Article;
import java.lang.String;

public interface ArticleRepositoryImpl extends PagingAndSortingRepository<Article, Long> {
    Page<Article> findAll(Pageable pageRequest);

    Page<Article> findBySource_id(String source_id, Pageable pageable);
}

正如您在上面的模型中所看到的，source_id是在模型中定义的。

在运行应用程序的主类上，我已经为jpa存储库定义了地点。

package com.infostream;

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.data.jpa.repository.config.EnableJpaRepositories;

@SpringBootApplication
@EnableJpaRepositories("com.infostream.repositories")
public class InfoStreamSpringBootApplication {

    public static void main(String[] args) throws Exception {       
        SpringApplication.run(InfoStreamSpringBootApplication.class, args);
    }
}

有没有人有他们如何实现这一目标的源代码示例？

spring 5不创建支持Pageable的方法findByFieldName

0 个答案: