fasterxml.jackson 將對象轉換爲json報錯處理

查詢數據遇到如下報錯：

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, disableSerializationFeature.FAIL_ON_EMPTY_BEANS) (through reference chain: com.xwj.entity.UserEntity_$$_jvst57f_0["handler"])

觀察紅色字體部分，發現是實體類中有的字段值爲null，所以在json化的時候，fasterxml.jackson將對象轉換爲json報錯

解決辦法：

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