英文:
How to use Lambok dependency in SpringBoot?
问题
我刚刚在我的SpringBoot项目中添加了Lombok依赖，这样我就不必重复编写获取器、设置器和构造函数的代码了。
以下是我的代码示例：
Book.java
@NoArgsConstructor
@AllArgsConstructor
@Getter
@Setter
@ToString
@Entity
@Table(name = "Books")
public class Book {
@Id
@GeneratedValue(strategy = GenerationType.IDENTITY)
private Integer id;
private String title;
private String ISBN;
private String author;
private String issuer;
private Integer dateOfIssue;
private Boolean IsRented;
}
但是现在在我的BookService.java中，所有的获取器和设置器都变成了红色，错误显示为：
Cannot resolve method 'setTitle' in 'Book'
这是我尝试使用获取器和设置器的方式：
public Book updateBook(Book book){
Book existingBook = bookRepo.findById(book.getId()).orElse(null);
existingBook.setTitle(book.getTitle());
existingBook.setISBN(book.getISBN());
existingBook.setAuthor(book.getAuthor());
existingBook.setIssuer(book.getIssuer());
existingBook.setDateOfIssue(book.getDateOfIssue());
existingBook.setDateOfIssue(book.getDateOfIssue());
existingBook.setRented(book.getRented());
return bookRepo.save(existingBook);
}
为什么会发生这种情况？当我像下面这样编写我的获取器和设置器时：
public String getTitle() {
return title;
}
public void setTitle(String title) {
this.title = title;
}
一切都还好，但是当我删除它并添加了Lombok后，我似乎无法访问我的获取器和设置器。
英文:
I have just added Lombok dependency to my SpringBoot project so I don't have to repeat lines of getters, setters and constructors...
Here is my code example:
Book.java
@NoArgsConstructor
@AllArgsConstructor
@Getter
@Setter
@ToString
@Entity
@Table(name = "Books")
public class Book {
@Id
@GeneratedValue(strategy = GenerationType.IDENTITY)
private Integer id;
private String title;
private String ISBN;
private String author;
private String issuer;
private Integer dateOfIssue;
private Boolean IsRented;
}
But now in my BookService.java I have all the getters and setters turned red with error saying
Cannot resolve method 'setTitle' in 'Book'
This is how I am trying to use getters and setters:
public Book updateBook(Book book){
Book existingBook = bookRepo.findById(book.getId()).orElse(null);
existingBook.setTitle(book.getTitle());
existingBook.setISBN(book.getISBN());
existingBook.setAuthor(book.getAuthor());
existingBook.setIssuer(book.getIssuer());
existingBook.setDateOfIssue(book.getDateOfIssue());
existingBook.setDateOfIssue(book.getDateOfIssue());
existingBook.setRented(book.getRented());
return bookRepo.save(existingBook);
}
Why is that happening? When I had my getters and setters written like:
public String getTitle() {
return title;
}
public void setTitle(String title) {
this.title = title;
}
everything was okay but as I removed that and added Lombok it seems like I can't reach to my getters and setters.
答案1
得分: 3
似乎您正在使用集成开发环境（IDE）。为了使您的IDE能够识别由Lombok自动生成的代码，您需要将其安装到您的IDE中，并将其作为项目的依赖项。Lombok的网站提供了关于如何进行此操作的说明。例如，如果您正在使用Eclipse，可以在这里找到说明。
英文:
It seems you are using an IDE. For your IDE to recognize the code autogenerated by Lombok you need to install it on your IDE as well as having it as a dependency of your project. The web site for Lombok has instructions on how to do this. For example, if you are using Eclipse, the instructions are here.
答案2
得分: 1
你还需要在你的集成开发环境中安装它。以下是步骤的链接：
https://projectlombok.org/setup/eclipse
安装完成后，它将显示为：
英文:
You need to install it in your IDE as well. Find the link below for steps
https://projectlombok.org/setup/eclipse
Once you install it it will show as
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