Jackson库进行JSON 序列化时遇到了无限递归(Infinite Recursion)的问题及解决方案

// ComPointQuotaEntity.java
public class ComPointQuotaEntity {
    @ManyToOne
    @JoinColumn(name = "point_id")
    private ComPointEntity point;  // 保留此字段的序列化
    // 其他字段...
}
// ComPointEntity.java
public class ComPointEntity {
    @OneToMany(mappedBy = "point")
    @JsonIgnore  // 忽略此字段的序列化
    private List<ComPointQuotaEntity> pointQuota;
    // 其他字段...
}

// ComPointQuotaEntity.java
public class ComPointQuotaEntity {
    @ManyToOne
    @JoinColumn(name = "point_id")
    @JsonManagedReference  // 标记为父级（序列化）
    private ComPointEntity point;
    // 其他字段...
}
// ComPointEntity.java
public class ComPointEntity {
    @OneToMany(mappedBy = "point")
    @JsonBackReference  // 标记为子级（不序列化）
    private List<ComPointQuotaEntity> pointQuota;
    // 其他字段...
}

// ComPointQuotaEntity.java
public class ComPointQuotaEntity {
    @ManyToOne
    @JoinColumn(name = "point_id")
    @JsonManagedReference  // 标记为父级（序列化）
    private ComPointEntity point;
    // 其他字段...
}
// ComPointEntity.java
public class ComPointEntity {
    @OneToMany(mappedBy = "point")
    @JsonBackReference  // 标记为子级（不序列化）
    private List<ComPointQuotaEntity> pointQuota;
    // 其他字段...
}

# application.properties
spring.jackson.serialization.fail-on-empty-beans=false
spring.jackson.serialization.fail-on-self-references=false

@Configuration
public class JacksonConfig {
    @Bean
    public ObjectMapper objectMapper() {
        return new ObjectMapper()
            .configure(SerializationFeature.FAIL_ON_EMPTY_BEANS, false)
            .configure(SerializationFeature.FAIL_ON_SELF_REFERENCES, false);
    }
}

public class ComPointQuotaEntity {
    @ManyToOne
    @JoinColumn(name = "point_id")
    @JsonSerialize(using = ComPointEntitySerializer.class)
    private ComPointEntity point;
    // 其他字段...
}
public class ComPointEntitySerializer extends JsonSerializer<ComPointEntity> {
    @Override
    public void serialize(ComPointEntity value, JsonGenerator gen, SerializerProvider provider) throws IOException {
        if (value != null) {
            gen.writeStartObject();
            gen.writeNumberField("id", value.getId());
            // 仅序列化需要的字段，跳过 pointQuota
            gen.writeEndObject();
        }
    }
}