fasterxml.jackson 將對象轉換為json報錯處理

最近在做查詢的數據遇到如下報錯：

com.fasterxml.jackson.databind.exc.InvalidDefinitionException: No serializer found for class org.hibernate.proxy.pojo.javassist.JavassistLazyInitializer and no properties discovered to create BeanSerializer (to avoid exception, disable SerializationFeature.FAIL_ON_EMPTY_BEANS) (through reference chain: com.xwj.entity.UserEntity_$$_jvst57f_0["handler"])

仔細看紅色字體部分，發現是實體類中有的字段值為null，所以在json化的時候，fasterxml.jackson將對象轉換為json報錯

解決辦法：

　　在實體類上面加上注解 @JsonIgnoreProperties(value = { "hibernateLazyInitializer", "handler" })