failed to lazily initialize a collection of role:

最新推荐文章于 2023-10-12 11:30:48 发布
原创 最新推荐文章于 2023-10-12 11:30:48 发布 · 207 阅读 · 0 ·
CC 4.0 BY-SA版权
版权声明：本文为博主原创文章，遵循 CC 4.0 BY-SA 版权协议，转载请附上原文出处链接和本声明。
文章标签：

#failed to lazily initialize a collection of role:

本文介绍了一种常见的Hibernate懒加载异常“failedtolazilyinitializeacollectionofrole:nosessionorsessionwasclosed”的解决方法。该问题通常发生在尝试访问已关闭会话中的一对多关联数据时。文中提供了一个简单的解决方案，即将懒加载属性lazy设为false。

今天又碰到错误

failed to lazily initialize a collection of role: no session or session was closed

解决方法：

1、是把对应一对多的那两个列lazy=true改为lazy＝false即可

 <map name="images" table="item_image_map" sort="natural" lazy="false">

org.hibernate.LazyInitializationException: failed to lazily initialize a collection of role
icecoola_的博客
04-02 1251
报错信息: description The server encountered an internal error that prevented it from fulfilling this request. exception org.springframework.http.converter.HttpMessageNotWritableException: Could not write...
failed to lazily initialize a collection of role
weixin_33785972的博客
10-14 150
2019独角兽企业重金招聘Python工程师标准>>> ...
bug：Caused by: org.attoparser.ParseException: failed to lazily initialize a collection of role
qq_634380940的博客
10-12 163
扩大sessio域也不管用时，就将所在变量添加fetch模式。外键连接的对应变量也改一下fetch。
Hibernate:LazyInitializationException: failed to lazily initialize a collection of rol
CSU_Zipple的博客
10-20 1905
Hibernate日常异常：关系映射查询懒加载 在进行一对多的查询中（shop有多个order），遇到了failed to lazily initialize a collection of rol错误。很明显，这里是查询的时候由于懒加载的原因session关闭了，于是接着shop表往下查order的时候失去了session。 这里我们采用配置文件设置懒加载的方式： 一对多： <s
org.hibernate.LazyInitializationException: failed to lazily initialize a collection of role:
热门推荐
白面小生的博客
08-06 1万+
转载自:https://blog.youkuaiyun.com/lch_2016/article/details/81051685 什么是hibernate懒加载？什么时候用懒加载？为什么要用懒加载？懒加载解决方法 转自：https://www.cnblogs.com/cornucopia/articles/4541621.html 转自：https://blog.youkuaiyun.com/qq_2103366...
月 29, 2025 3:21:46 下午 org.apache.catalina.core.StandardWrapperValve invoke 严重: Servlet.service() for servlet [mvc-dispatcher] in context with path [/xtest] threw exception [Request processing failed; nested exception is org.hibernate.LazyInitializationException: failed to lazily initialize a collection of role: com.xtest.models.EntityLayout.entityLists, could not initialize proxy - no Session] with root cause org.hibernate.LazyInitializationException: failed to lazily initialize a collection of role: com.xtest.models.EntityLayout.entityLists, could not initialize proxy - no Session
07-30
failed to lazily initialize a collection of role: com.xtest.models.EntityLayout.entityLists, could not initialize proxy - no Session ``` 表明你试图访问 `EntityLayout` 实体中的 `entityLists` 集合，但...
failed to lazily initialize a collection of role: com.example.ffc7.model.User.roles: could not initialize proxy - no Session
03-26
<one-to-many class="Child"/> ``` - 或使用JPA注解（如`@OneToMany(fetch = FetchType.EAGER)`）。 **注意事项** 关闭延迟加载会导致关联数据立即加载，可能增加数据库查询次数，需权衡性能影响[^4]。 ---...
Resolved [org.springframework.http.converter.HttpMessageNotWritableException: Could not write JSON: failed to lazily initialize a collection of role: com.rfxj.projects.swawp.risk2021.entity.StRiskGasDetail.permits, could not initialize proxy - no Session; nested exception is com.fasterxml.jackson.databind.JsonMappingException: failed to lazily initialize a collection of role: com.rfxj.projects.swawp.risk2021.entity.StRiskGasDetail.permits, could not initialize proxy - no Session (through reference chain: java.util.Collections$SynchronizedMap["gasList"]->java.util.ArrayList[0]->com.rfxj.projects.swawp.risk2021.entity.StRiskGasDetail["permits"])]
最新发布
10-11
Failed to lazily initialize a collection of role: com.rfxj.projects.swawp.risk2021.entity.StRiskGasDetail.permits, could not initialize proxy - no Session ``` **核心机制**： 1. **懒加载策略**：...
failed to lazily initialize a collection of role: XXXXXXXX no session or session was closed
dizhang的专栏
07-18 2535
failed to lazily initialize a collection of role: XXXXXXXX no session or session was closed2007-05-11 10:47这个异常大致意思是说在多对一的时候（并且lazy="false"），对象的实例失败，多数出现的情况有1、粗心造成实例对象类名写错之类的2、逻辑错误如之前就已经传递过来一个
org.hibernate.LazyInitializationException: failed to lazily initialize a col
zhujiaxing666666的专栏
01-16 1万+
org.hibernate.LazyInitializationException: failed to lazily initialize a collection of role: com.cmis.model.CFIS_Album.CFIS_Photos, org.hibernate.LazyInitializationException: failed to lazily initiali
评论
成就一亿技术人!
拼手气红包6.0元
还能输入1000个字符
 
红包 添加红包
表情包 插入表情
表情包 代码片
 条评论被折叠 查看
添加红包

请填写红包祝福语或标题

个

红包个数最小为10个

元

红包金额最低5元

当前余额3.43元 前往充值 >
需支付：10.00元
成就一亿技术人!
领取后你会自动成为博主和红包主的粉丝 规则
hope_wisdom
发出的红包
实付元
使用余额支付
点击重新获取
扫码支付
钱包余额 0

抵扣说明：

1.余额是钱包充值的虚拟货币，按照1:1的比例进行支付金额的抵扣。
2.余额无法直接购买下载，可以购买VIP、付费专栏及课程。

余额充值