Restful规则及JPA导致内存溢出

HTTP动词

对于资源的具体操作类型，由HTTP动词表示。

常用的HTTP动词有下面五个（括号里是对应的SQL命令）。

GET（SELECT）：从服务器取出资源（一项或多项）。
POST（CREATE）：在服务器新建一个资源。
PUT（UPDATE）：在服务器更新资源（客户端提供改变后的完整资源）。
PATCH（UPDATE）：在服务器更新资源（客户端提供改变的属性）。
DELETE（DELETE）：从服务器删除资源。

还有两个不常用的HTTP动词。

HEAD：获取资源的元数据。
OPTIONS：获取信息，关于资源的哪些属性是客户端可以改变的。

下面是一些例子。

GET /zoos：列出所有动物园
POST /zoos：新建一个动物园
GET /zoos/ID：获取某个指定动物园的信息
PUT /zoos/ID：更新某个指定动物园的信息（提供该动物园的全部信息）
PATCH /zoos/ID：更新某个指定动物园的信息（提供该动物园的部分信息）
DELETE /zoos/ID：删除某个动物园
GET /zoos/ID/animals：列出某个指定动物园的所有动物
DELETE /zoos/ID/animals/ID：删除某个指定动物园的指定动物

fixed 内存溢出

代码

@Setter
@Getter
@Entity
@Table(name = "tb_zoo")
public class Zoo {
    @Id
    @GeneratedValue(strategy = GenerationType.IDENTITY)
    private Long id;
    @NotBlank
    private String name;
    private String address;
    private String url;
    @OneToMany(mappedBy = "zoo")
    private List<Animal> animalList;
}

@Setter
@Getter
@Entity
@Table(name = "tb_animal")
public class Animal {
    @Id
    @GeneratedValue(strategy = GenerationType.IDENTITY)
    private Long id;
    @NotBlank
    private String name;
    @NotBlank
    private String kind;
    @ManyToOne
    private Zoo zoo;
}

调用GET /zoos/{id}/animals 时, 会出现内存溢出。

Servlet.service() for servlet [dispatcherServlet] in context with path [] threw exception [Request processing failed; nested exception is org.springframework.http.converter.HttpMessageNotWritableException: Could not write JSON: Infinite recursion (StackOverflowError); nested exception is com.fasterxml.jackson.databind.JsonMappingException: Infinite recursion (StackOverflowError) (through reference chain: com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.entity.Animal["zoo"]->com.chinda.entity.Zoo["animalList"])] with root cause

出现此情况是因为转换json时会递归转换, 最终导致内存溢出。

解决方案: 忽略掉一方的json转换即可。

修复后代码：

@Setter
@Getter
@Entity
@Table(name = "tb_animal")
public class Animal {
    @Id
    @GeneratedValue(strategy = GenerationType.IDENTITY)
    private Long id;
    @NotBlank
    private String name;
    @NotBlank
    private String kind;
    @JsonIgnore
    @ManyToOne
    private Zoo zoo;
}

码云

https://gitee.com/w_chinda/restful-api