blocks|key|4447833|text|您也可以在类定义中结合使用@Data+@Builder+@NoArgsConstructor+@AllArgsConstructor来显式地解决这个问题。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|4447834|entityMap^0|D|1H|0^^$0|@$1|2|3|4|5|6|7|H|8|@$9|I|A|J|B|C]]|D|@]|E|$]]|$1|F|3|-4|5|6|7|K|8|@]|D|@]|E|$]]]|G|$]]

You can also solve it explicitly with <code>@Data @Builder @NoArgsConstructor @AllArgsConstructor</code> combined on the class definition.

blocks|key|4447866|text|似乎注释顺序在这里很重要，使用相同的注释，但顺序不同，你可以让代码工作，也可以不工作。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|4447867|以下是一个不起作用的示例：|4447868|@AllArgsConstructor
@Builder
@Data
@Entity
@EqualsAndHashCode
@NoArgsConstructor
@RequiredArgsConstructor
@Table
@ToString
public+class+Person+implements+Serializable+{
++private+String+name;
}|code-block|syntax|javascript|4447869|这是一个有效的例子：|4447870|@Builder
@Data
@Entity
@EqualsAndHashCode
@AllArgsConstructor
@NoArgsConstructor
@RequiredArgsConstructor
@Table
@ToString
public+class+Person+implements+Serializable+{
++private+String+name;
}|4447871|所以一定要把@Builder注释放在最上面的位置，在我的例子中，我遇到了这个错误，因为我想按字母顺序对注释进行排序。|4447872|entityMap^0|0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|Q|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|R|8|@]|9|@]|A|$]]|$1|D|3|E|5|F|7|S|8|@]|9|@]|A|$G|H]]|$1|I|3|J|5|6|7|T|8|@]|9|@]|A|$]]|$1|K|3|L|5|F|7|U|8|@]|9|@]|A|$G|H]]|$1|M|3|N|5|6|7|V|8|@]|9|@]|A|$]]|$1|O|3|-4|5|6|7|W|8|@]|9|@]|A|$]]]|P|$]]

It seems that the annotations order is important here, using the same annotations, but different orders, you can have the code working, or not.

Here is a non working example:

<pre><code>@AllArgsConstructor
@Builder
@Data
@Entity
@EqualsAndHashCode
@NoArgsConstructor
@RequiredArgsConstructor
@Table
@ToString
public class Person implements Serializable {
 private String name;
}
</code></pre>

And this is a working example:

<pre><code>@Builder
@Data
@Entity
@EqualsAndHashCode
@AllArgsConstructor
@NoArgsConstructor
@RequiredArgsConstructor
@Table
@ToString
public class Person implements Serializable {
 private String name;
}
</code></pre>

So be sure to have the @Builder annotation at the very top position, in my case I encountered this error because I wanted to sort annotations alphabetically.

blocks|key|4447905|text|使用@NoArgsConstructor和@AllArgsContructor将有助于解决具有@Builder的默认构造函数的问题。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|4447906|e.g|4447907|@Entity+
@Builder
@NoArgsConstructor
@AllArgsContructor
class+Person+{
++++@Id
++++@GeneratedValue(strategy+=+GenerationType.AUTO)
++++private+Long+id;
}|code-block|syntax|javascript|4447908|这是因为@Builder需要所有参数构造函数，并且只指定默认构造函数会导致问题。|4447909|以下是nore的解释：https://github.com/rzwitserloot/lombok/issues/1389#issuecomment-369404719|4447910|entityMap|0|LINK|mutability|MUTABLE|url|https://github.com/rzwitserloot/lombok/issues/1389#issuecomment-369404719^0|2|I|L|I|1B|8|0|0|0|4|8|0|B|21|0|0^^$0|@$1|2|3|4|5|6|7|Y|8|@$9|Z|A|10|B|C]|$9|11|A|12|B|C]|$9|13|A|14|B|C]]|D|@]|E|$]]|$1|F|3|G|5|6|7|15|8|@]|D|@]|E|$]]|$1|H|3|I|5|J|7|16|8|@]|D|@]|E|$K|L]]|$1|M|3|N|5|6|7|17|8|@$9|18|A|19|B|C]]|D|@]|E|$]]|$1|O|3|P|5|6|7|1A|8|@]|D|@$9|1B|A|1C|1|1D]]|E|$]]|$1|Q|3|-4|5|6|7|1E|8|@]|D|@]|E|$]]]|R|$S|$5|T|U|V|E|$W|X]]]]

Using <code>@NoArgsConstructor</code> and <code>@AllArgsContructor</code> will help solve the issue of having a default constructor with <code>@Builder</code>. 

e.g

<pre><code>@Entity 
@Builder
@NoArgsConstructor
@AllArgsContructor
class Person {
 @Id
 @GeneratedValue(strategy = GenerationType.AUTO)
 private Long id;
}
</code></pre>

This is because <code>@Builder</code> requires all argument constructor and specifying only a default constructor will cause an issue. 

Here is nore explaination: <a href="https://github.com/rzwitserloot/lombok/issues/1389#issuecomment-369404719" rel="nofollow noreferrer">https://github.com/rzwitserloot/lombok/issues/1389#issuecomment-369404719</a>

blocks|key|4447935|text|我使用所有这些注释解决了这个问题：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|4447936|@Data
@Builder
@AllArgsConstructor(access+=+AccessLevel.PACKAGE)
@NoArgsConstructor(access+=+AccessLevel.PACKAGE)|code-block|syntax|javascript|4447937|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

i solved this using all these annotations:

<pre><code>@Data
@Builder
@AllArgsConstructor(access = AccessLevel.PACKAGE)
@NoArgsConstructor(access = AccessLevel.PACKAGE)
</code></pre>

blocks|key|4447955|text|Jeff的回答很好，但是@Builder还不支持自引用关系。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|4447956|有关更多详细信息，请查看此问题：|4447957|JPA+@OnetoOne+self+reference+relationship+with+both+columns+non+null|offset|length|4447958|entityMap|0|LINK|mutability|MUTABLE|url|https://stackoverflow.com/questions/61289891/jpa-onetoone-self-reference-relationship-with-both-columns-non-null/61294680#61294680^0|0|0|0|1W|0|0^^$0|@$1|2|3|4|5|6|7|P|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|Q|8|@]|9|@]|A|$]]|$1|D|3|E|5|6|7|R|8|@]|9|@$F|S|G|T|1|U]]|A|$]]|$1|H|3|-4|5|6|7|V|8|@]|9|@]|A|$]]]|I|$J|$5|K|L|M|A|$N|O]]]]

Jeff's answer works fine however, @Builder does not support self-reference relationships yet.

Check this question for more details:

<a href="https://stackoverflow.com/questions/61289891/jpa-onetoone-self-reference-relationship-with-both-columns-non-null/61294680#61294680">JPA @OnetoOne self reference relationship with both columns non null</a>

I'm using project Lombok together with Spring Data JPA.
Is there any way to connect Lombok <code>@Builder</code> with JPA default constructor?

Code:

<pre><code>@Entity 
@Builder
class Person {
 @Id
 @GeneratedValue(strategy = GenerationType.AUTO)
 private Long id;
}
</code></pre>

As far as I know JPA needs default constructor which is overriden by <code>@Builder</code> annotation. Is there any workaround for that?

This code gives me error:
<code>org.hibernate.InstantiationException: No default constructor for entity: : app.domain.model.Person</code>

Lombok @Builder and JPA Default constructor

我将Lombok项目与Spring Data JPA结合使用。有没有办法将Lombok @Builder与JPA默认构造函数连接起来？代码：@Entity @Builderclass Person {    @Id    @GeneratedValue(strategy = GenerationType.AUTO)  ...

问Lombok @Builder和JPA默认构造函数
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