首页
移动开发
物联网
服务端
编程语言
企业开发
数据库
业界资讯
其他
搜索
Failed to convert from type [null] to type [int] for value 'null';
其他
2020-09-07 15:47:13
阅读次数: 0
报错截图:
原因:
基本数据类型不能赋值为null,而数据库中有的字段值为null。
解决方法:
把数据类型改为包装类,如int -> integer;
猜你喜欢
转载自
blog.csdn.net/sgx5666666/article/details/103737537
Failed to convert from type [null] to type [int] for value 'null';
Oracle Cannot convert value of type [null] to required type [int] for property
Failed to convert property value of type ‘null‘ to required type ‘double‘ for property ‘balance‘
SpringAop时Null return value from advice does not match primitive return type for: public int...异常
Could not convert variant of type (Null) into type (OleStr)
The expected type was 'System.Int64' but the actual value was null.”
attempted to return null from a method with a primitive return type (int)
[mybatis]............attempted to return null from a method with a primitive return type (int).
updateCommentCount attempted to return null from a method with a primitive return type (int)
attempted to return null from a method with a primitive return type (int).
attempted to return null from a method with a primitive return type (int)
ConversionFailedException: Failed to convert from type String to type Date for value ‘ ‘;日期格式转换异常
【我的Android进阶之旅】解决编译报错:Cannot convert a null value to an object of type Dependency.
mybatis下返回类型为int,结果为null时报tempted to return null from a method with a primitive return type (int).
Springmvc : Failed to convert property value of type 'java.lang.String' to int
Null value was assigned to a property of primitive type setter of
Trying to access array offset on value of type null
Failed to convert from type [java.lang.String] to type [java.util.Date] for value '2018-06-19'
Kotlin Error: Null can not be a value of a non-null type String
Optional int parameter 'pId' is present but cannot be translated into a null value due to being declared as a primitive type.
Optional int parameter 'id' is present but cannot be translated into a null value due to being declared as a primitive type.
Cannot deserialize value of type `int` from String “{}“: not a valid `int` value;
LeetCode -- reference binding to null pointer of type 'value_type'
mybatis使用xml实现发生的异常之一return null from a method with a primitive return type (int)
【spring】SpringAop报错: Null return value from advice does not match primitive return type for
[Vue warn]: Invalid prop: type check failed for prop “value“. Expected String, Number, got Null.
Invalid prop: type check failed for prop “index“. Expected String | Null, got Number with value 1.
The cast to value type 'System.Decimal' failed because the materialized value is null. Either the result type's generic parameter or the query must use a nullable type.
Mybatis返回int类型为空时报错 attempted to return null from a method with a primitive return type (int)
【java】Mybatis返回int类型为空时报错 attempted to return null from a method with a primitive return type (int)
今日推荐
周排行
四大线程池详解
如何高效使用Vim
Mogodb的常用操作总结
Spyder默认页面布局调整
SAR日志分析
OAuth是一个关于授权(authorization)的开放网络标准,在全世界得到广泛应用,目前的版本是2.0版。 本文对OAuth 2.0的设计思路和运行流程,做一个简明通俗的解释,主要参考材料为R
WebService中注解开发,CXF,Spring整合,Rest风格
2019考研英语一 Text1分析
windows下安装docker详细步骤
CentOS 7/6系统升级内核版本到5.2.2
每日归档
更多
2024-08-05(0)
2024-08-04(0)
2024-08-03(0)
2024-08-02(0)
2024-08-01(0)
2024-07-31(0)
2024-07-30(0)
2024-07-29(0)
2024-07-28(0)
2024-07-27(0)