今天开发时候 hibernate 查询报错，分析原因如下：
进来休息下，来点我吧
原因：数据库里score字段值为NULL，进行对象持久化关联时，企图给对象的这个属性赋值为空，而对象实例的这个属性不能为空值，所以出现错误。【Score 是int型，不能为空】
修改方法：score属性修改为Long型，【Long型变量可以为空值。】
woshixushigang
- 浏览: 578780 次
- 性别:
- 来自: 北京
-
文章分类
- 全部博客 (411)
- webservice (3)
- oracle (37)
- sqlserver (8)
- j2ee (56)
- linux (7)
- javaweb (47)
- office (1)
- struts (23)
- hibernate (11)
- spring (29)
- 网络 (2)
- tomcat (13)
- tongweb (0)
- weblogic (0)
- powerdesiginer (3)
- svn (3)
- js (20)
- ie (2)
- 编译 (3)
- css (2)
- 操作系统 (5)
- Android (41)
- jbpm4.3 (1)
- fckeditor (3)
- 操作excel (2)
- db2常用命令 (1)
- ibatis (5)
- mysql (16)
- 表达式语言 (1)
- java方式调用存储过程 (1)
- ca (1)
- linux客户端 (1)
- 电子数码 (1)
- 行业应用 (12)
- 开发工具 (4)
- 面试 (1)
- 计算机原理 (1)
- NOSQL (5)
- 虚拟机 (1)
- nginx (0)
- velocity (2)
- jndi (1)
- spring mvc (39)
- springmvc (32)
- 安全 (5)
- htmleditor (6)
- iphone4 (1)
- html (4)
- jstl (2)
- ckeditor (5)
- 连接池 (1)
- jquery (6)
- 分页 (1)
- 技术研发规则 (1)
- javamail (1)
- maven (2)
- upload (1)
- log (1)
- 测试 (10)
- spring roo (1)
- 版本控制 (2)
- find bugs (0)
- ｊｓｆ (0)
- springroo (0)
- 小道理 (1)
- 小道理，技术标准 (1)
- jsf (0)
- bitbao (2)
- redmine (3)
- 团队意识 (1)
- mybatis (2)
- jquery mobile (1)
- flexpaper (0)
- json (4)
- URLRewriteFilte (1)
- html5 (1)
- 都乐保活动 (0)
- openfire (0)
- TreeMap (1)
- build (0)
- javaweb，tag (0)
- algorithm (1)
- tag (2)
- 扯淡 (0)
- mac (2)
- 叶一火(老一) (1)
- 游玩 (1)
- 编码 (1)
- 上线部署 (0)
- 研发管理 (0)
- thumbnailator (2)
- 旅游 (0)
- bingweibo (1)
- 杂谈 (4)
- ktv (1)
- weibo (1)
- 爱情 (2)
- 饮食 (1)
- MediaWiki (1)
- git (1)
- 版本库 (1)
- servlet (1)
- 感悟 (1)
- 人生 (1)
- highcharts (1)
- poi (0)
- websphere (0)
- php (1)
最新评论
-
woshixushigang：
good
org.springframework.beans.TypeMismatchException: Failed to convert property valu -
nathanleewei：
org.springframework.jdbc.core.B ...
org.springframework.beans.TypeMismatchException: Failed to convert property valu -
浪禾木：
请问是ckeditor\contents.css吗?改过以后 ...
ckeditor自动换行问题 -
simusuishi：
刚哥威武！
ckeditor取值赋值问题 -
a455642158：
收割完毕……
Android开源项目源码下载（不断更新中）
hibernate [Null value was assigned to a property of primitive type setter of sco
分享到：
发表评论
-
spring mvc 乐观锁遇到的问题
2013-05-29 17:29 2003乐观锁问题：updateTime @version ... -
RESTFUL
2013-05-29 17:21 0a -
hibernate命名查询问题
2013-01-30 16:38 1324hibernate 注解 @OneToOne(fetc ... -
hibernate4注解配置，纠结的一对多双向关联
2012-12-20 11:16 1766目前负责中行风险管理系统的数据核对加工模块，业务以及逻辑都已经 ... -
hibernate4 注解配置失误导致生成的表关联关系不对
2012-12-18 19:52 1233最近做ibm 风险管理系统，配置hibernate 注解时候看 ... -
Arrays.asList详解
2012-09-10 09:52 889Arrays.asList详解 记得以前写过一 ... -
mapper.readValue读取null
2012-08-17 19:21 2606如下代码，这样写不会走catch方法，此方法不报ioExcep ... -
string.split(",")返回的长度问题
2012-08-17 15:38 918String test = "#我的测试#&q ... -
thumbnailator 图片缩放问题
2012-08-17 19:29 2755这段代码上传1.7m图片会报错： publ ... -
模拟微博新鲜事短网址处理方式
2012-08-16 17:40 0a -
新鲜事短连接
2012-08-19 12:01 958现在需求如下： 使 ... -
jackson objectMapper.readValue 读取并存成想要的类型
2012-07-26 20:16 3720两种方式： java反射里面有个很有趣的东东，反射解析成li ... -
spring mvc responseBody 会把特殊字符转义
2012-07-26 19:53 4512框架用的spring 采用spring mvc 方式进行图片上 ... -
Out of range value for column 'bindUid' at row 1
2012-07-19 20:35 1495今天弄新浪微博绑定，数据库oauth_token表需要插入bi ... -
spring mvc 自己遇到的几个错误
2012-06-13 14:36 1204where 1=1 and t.name like '%&q ... -
Request method 'POST' not supported
2012-06-08 10:53 5209项目采用spring mvc框架实现，插入数据时候采用 ... -
beanPropertyRowMapper
2012-08-10 11:24 1085@SuppressWarnings(&quo ... -
org.codehaus.jackson.map.JsonMappingException
2012-08-17 19:30 990当一个类的所有属性都没有getter时（所有属性都是publi ... -
validApiToken
2012-08-10 11:26 977/** * 检验token的有效性 * @p ... -
split
2012-05-23 10:46 1203//String[] idArr = StringUtil ...
相关推荐
标题 "TFS2010 Assigned To 改变邮件自动转发" 涉及的是Team Foundation Server (TFS) 2010中的一项功能，该功能允许在工作项（Work Item）的“分配给”（Assigned To）字段发生变化时，系统会自动向新的指派人发送...
在使用Visual Studio开发Qt应用程序的过程中，可能会遇到这样一个棘手的问题：当你尝试打开一个Qt项目时，系统会弹出错误提示“there's no Qt version assigned to this project for platform win32”。这个问题表明...
This property can be assigned by a maximum time, which will be used to calculate the widths of the columns when the user double click on the line that separates columns. If the time of calculation ...
- When the signal conditioning function "S&M" was used for a byte value, the driver wrote wrong values to the PLC. Build 223 : New Functions: - The number of supported NetLinks has been ...
Table of Contents Preface 1. Introduction to Hibernate 1.1. Preface 1.2. Part 1 - The first Hibernate Application 1.2.1. The first class 1.2.2. The mapping file 1.2.3. Hibernate configuration 1.2.4. ...
After working at Red Hat for a few years, in late 2014 I was assigned to a newly- established team called Cloud Enablement. Our task was to bring the company’s range of middleware products to the ...
5. `a different object with the same identifier value was already associated with the session` 这个异常表明在同一个Hibernate Session中存在两个具有相同标识但实际是不同对象的情况。处理方法有： - 使用`...
After his service with NASA, Lockhart was assigned to and graduated in 2004 from the Royal College of Defence Studies in London, United Kingdom. His last military assignment was with the headquarters ...
### Hibernate与Struts实例学习知识点 #### 1. 数据库设计与表建立 在本实例学习中，首先需要对数据库进行设计，创建一个名为`crud`的数据库，以及在其中建立一个名为`student`的表。表中包含`id`, `name`, `age`,...
[] 匹配中括号里的内容[a-z][A-Z][0-9]。 ！ 事件。 $ 取环境变量的值。 | 管道。把前一命令的输出作为后一命令的输入，把几个命令连接起来。 ｜经常跟tee连用，tee 把内容保存到文档并显示出来。 三、通用后...
### Hibernate学习笔记小结 #### 一、简介与配置 **Hibernate** 是一款开源的对象关系映射（ORM）框架，它允许开发人员将Java对象自动持久化到数据库表中，从而简化了数据访问层的开发工作。在Spring框架中，...
I want to address sincere congratulations to Charlie Smurthwaite of aTech Media for the really detailed traces he provided which made it possible to find the cause of this bug. Every user of 1.5-dev,...
默认值是`property`，意味着Hibernate将使用getter和setter方法来读写属性。如果自定义了访问策略，可以通过实现`PropertyAccessor`接口来指定。 2. `default-lazy`：默认情况下，未显式指定`lazy`属性的Java属性和...
This specification was developed in response to a perceived need for a standardized programming inter-face to digitizing tablets, three dimensional position sensors, and other pointing devices by a ...
After working at Red Hat for a few years, in late 2014 I was assigned to a newlyestablished team called Cloud Enablement. Our task was to bring the company’s range of middleware products to the ...
<property name="password" type="java.lang.String" column="password" not-null="true" length="50"/> <property name="balance" type="java.lang.Double" column="balance" not-null="true"/> </hibernate-...
Creates a cookie, a small amount of information sent by a servlet to a Web browser, saved by the browser, and later sent back to the server. Cookie(String, String) - Constructor for class javax....
Used to lock ranges between records in a table to prevent phantom insertions or deletions into a set of records. Ensures serializable transactions. RID A Row Identifier. Used to individually lock a ...