Ich versuche, eine einfache Spring Boot-Anwendung mit jHipster generiert aus einer postgresql eine Liste von Artikeln aus einer postreSQL-Datenbank zu erhalten und anzuzeigen, mit einem Rest-Controller, aber wenn ich es ausführen, bekomme ichSpring Boot - Bean namens entityManagerFactory
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APPLICATION FAILED TO START
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Description:
Parameter 0 of constructor in org.adi.security.DomainUserDetailsService required a bean named 'entityManagerFactory' that could not be found.
Action:
Consider defining a bean named 'entityManagerFactory' in your configuration.
Aber die Sache ist, dass die `DomainUserDetailsService etwas von jhipster erzeugt wird, die aufgehört zu arbeiten, nachdem ich meine Klassen hinzugefügt. So will ich unter meinen Klassen schreiben:
Artikel Entity:
package org.adi.domain;
import java.io.Serializable;
import javax.persistence.Column;
import javax.persistence.Entity;
import javax.persistence.GeneratedValue;
import javax.persistence.GenerationType;
import javax.persistence.Id;
import javax.persistence.Table;
@Entity
@Table(name="articles")
public class Article implements Serializable {
private static final long serialVersionUID = 1L;
@Id
@GeneratedValue(strategy=GenerationType.AUTO)
@Column(name="article_id")
private int articleId;
@Column(name="title")
private String title;
@Column(name="category")
private String category;
public int getArticleId() {
return articleId;
}
public void setArticleId(int articleId) {
this.articleId = articleId;
}
public String getTitle() {
return title;
}
public void setTitle(String title) {
this.title = title;
}
public String getCategory() {
return category;
}
public void setCategory(String category) {
this.category = category;
}
}
ArticleDAO (Repository):
@Transactional
@Repository
public class ArticleDAO implements IArticleDAO {
@PersistenceContext
private EntityManager entityManager;
@Override
public Article getArticleById(int articleId) {
return entityManager.find(Article.class, articleId);
}
@SuppressWarnings("unchecked")
@Override
public List<Article> getAllArticles() {
String hql = "FROM Article as atcl ORDER BY atcl.articleId DESC";
return (List<Article>) entityManager.createQuery(hql).getResultList();
}
@Override
public void createArticle(Article article) {
entityManager.persist(article);
}
@Override
public void updateArticle(Article article) {
Article artcl = getArticleById(article.getArticleId());
artcl.setTitle(article.getTitle());
artcl.setCategory(article.getCategory());
entityManager.flush();
}
@Override
public void deleteArticle(int articleId) {
entityManager.remove(getArticleById(articleId));
}
@Override
public boolean articleExists(String title, String category) {
String hql = "FROM Article as atcl WHERE atcl.title = ? and atcl.category = ?";
int count = entityManager.createQuery(hql).setParameter(1, title)
.setParameter(2, category).getResultList().size();
return count > 0 ? true : false;
}
}
ArticleService:
@Service
public class ArticleService implements IArticleService {
@Autowired
private IArticleDAO articleDAO;
@Override
public Article getArticleById(int articleId) {
Article obj = articleDAO.getArticleById(articleId);
return obj;
}
@Override
public List<Article> getAllArticles(){
return articleDAO.getAllArticles();
}
@Override
public synchronized boolean createArticle(Article article){
if (articleDAO.articleExists(article.getTitle(), article.getCategory())) {
return false;
} else {
articleDAO.createArticle(article);
return true;
}
}
@Override
public void updateArticle(Article article) {
articleDAO.updateArticle(article);
}
@Override
public void deleteArticle(int articleId) {
articleDAO.deleteArticle(articleId);
}
}
und schließlich meine REST-Controller:
@Controller
@RequestMapping("user")
@CrossOrigin(origins = {"http://localhost:4200"})
public class ArticleController {
@Autowired
private IArticleService articleService;
@GetMapping("article")
public ResponseEntity<Article> getArticleById(@RequestParam("id") String id) {
Article article = articleService.getArticleById(Integer.parseInt(id));
return new ResponseEntity<Article>(article, HttpStatus.OK);
}
@GetMapping("all-articles")
public ResponseEntity<List<Article>> getAllArticles() {
List<Article> list = articleService.getAllArticles();
return new ResponseEntity<List<Article>>(list, HttpStatus.OK);
}
@PostMapping("article")
public ResponseEntity<Void> createArticle(@RequestBody Article article, UriComponentsBuilder builder) {
boolean flag = articleService.createArticle(article);
if (flag == false) {
return new ResponseEntity<Void>(HttpStatus.CONFLICT);
}
HttpHeaders headers = new HttpHeaders();
headers.setLocation(builder.path("/article?id={id}").buildAndExpand(article.getArticleId()).toUri());
return new ResponseEntity<Void>(headers, HttpStatus.CREATED);
}
@PutMapping("article")
public ResponseEntity<Article> updateArticle(@RequestBody Article article) {
articleService.updateArticle(article);
return new ResponseEntity<Article>(article, HttpStatus.OK);
}
@DeleteMapping("article")
public ResponseEntity<Void> deleteArticle(@RequestParam("id") String id) {
articleService.deleteArticle(Integer.parseInt(id));
return new ResponseEntity<Void>(HttpStatus.NO_CONTENT);
}
}
i hinzugefügt jetzt obwohl, indem sie durch Erzeugen Ich habe keine web-inf/persistence.xml, aber ich bekomme immer noch diesen Fehler :( –
jemand bitte helfen? –