To be returned by selectone but found: 2
nested exception is org.apache.ibatis.exceptions.TooManyResultsException: Expected one result (or null) to be returned by selectOne(), but found: 2. Relevant objects are as follows: class Recipe { String name List ingredients } class RecipeIngredient { Double measurementAmount }
To be returned by selectone but found: 2
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Webb12 juli 2024 · selectOne（）应返回一个结果（或空值），但返回2个结果。运行test文件时，程序报错“Expected one result (or null) to be returned by selectOne(), but found: 2”，在网上搜索查找了一番后，发现要查找的参数，在数据库里找到了多条数据的情况。但返回的时候，只能接收一个数据，这就导致了该问题。 WebbList list = selectList(statement, parameter); if (list.size() == 1) { return list.get(0); } else if (list.size() > 1) { throw new TooManyResultsException ("Expected one result (or null) to …
Webb这样就可以避免NPE List list = this.selectList(statement, parameter); if (list.size() == 1) { return list.get(0); } else if (list.size() > 1) { throw new TooManyResultsException("Expected one result (or null) to be returned by selectOne (), but found: " + list.size()); } else { return null; } } Example #14 Webb14 apr. 2024 · 一、前言. 来看这篇文章的应该都知道，在没有出现Hibernate和MyBatis 框架时，我们要访问数据库底层，都得使用JDBC来连接及操作数据库。. 用过JDBC的都知道使用很繁杂，所以就诞生了Hibernate和Mybatis这种ORM（对象映射关系）框架，其实他们都是对操作数据库底层（JDBC）的二次封装，要使用ORM框架只 ...
Webb9 feb. 2024 · When i debugged further I see that the stack trace is as follows: Caused by: org.apache.ibatis.exceptions.TooManyResultsException: Expected one result (or null) to be returned by selectOne(), but found: 2 at org.apache.ibatis.session.defaults.DefaultSqlSession.selectOne(DefaultSqlSession.java:80) … Webb08-Jul-2024 17:03:17.612 SEVERE [main] org.camunda.commons.logging.BaseLogger.logError ENGINE-16004 Exception while closing command context: Process engine ...
Webb26 mars 2024 · 问题复现 报错信息: nested exception is org.apache.ibatis.exceptions.TooManyResultsException: Expected one result (or null) to be returned by selectOne(), but found: 2 报错信息的大致意思:过多的结果值异常：只希望得到一个结果，但发现了2个 看我们的sql怎么写的: 很明显我们要的是一条但是返回的结果 …
WebbExpected one result (or null) to be returned by selectOne (), but found: 2. myabtisのxml構成beanデータベースなどにエラーはありません. selectが単一の結果セットを返すと、エ … chaiplaysgames minecraftWebb（2）mapper里的SQL （3）测试代码 （4）报错. org. mybatis. spring. MyBatisSystemException: nested exception is org. apache. ibatis. exceptions. … chai pine ke faydeWebb20 apr. 2024 · Expected one result (or null) to be returned by selectOne(), but found: 2的翻译是： selectOne（）应返回一个结果（或空值），但返回2个结果。 运行test文件时， … happyberry crochet slippersWebb21 jan. 2024 · Here Is the Stored Procedure which I am calling, which aims to return the data : ALTER PROCEDURE dbo.PR_Children_Get AS SET NOCOUNT ON BEGIN SELECT tp.ChildId, tp.Name FROM dbo.Children tp WITH (NOLOCK) END GO And here is how I am executing that procedure in my mapper : Webbför 5 timmar sedan · DALLAS, Texas – Reproductive justice advocates are rallying behind a Dallas-area couple after authorities took their 3-week-old daughter over concerns about …Webb8 jan. 2024 · 问题复现 报错信息: nested exception is org.apache.ibatis.exceptions.TooManyResultsException: Expected one result (or null) to be returned by selectOne(), but found: 2 报错信息的大致意思:过多的结果值异常：只希望得到一个结果，但发现了2个 看我们的sql怎么写的: 很明显我们要的是一条但是返回的结果 …Webb12 juli 2024 · selectOne（）应返回一个结果（或空值），但返回2个结果。运行test文件时，程序报错“Expected one result (or null) to be returned by selectOne(), but found: 2”， …Webb题目：三数之和 给你一个包含 n 个整数的数组 nums，判断 nums 中是否存在三个元素 a，b，c ，使得 a b c 0 ？请你找出所有满足条件且不重复的三元组。 注意：答案中不可以包含重复的三元组。 示…Webbför 3 timmar sedan · Oilers. -175. -220. -1.5 (-140) The game and series odds are comparable to last season's meeting, and the Kings can be found for as high as +210 in far away places. The Game 1 total opened the ...Webb17 mars 2024 · Expected one result (or null) to be returned by selectOne(), but found: 2的翻译是： selectOne（）应返回一个结果（或空值），但返回2个结果。 运行test文件时， …WebbSolved Expected one result (or null) to be returned by selectOne (), but found: 2; Perfect solution Expected one result (or null) to be returned by selectOne(), but found: 2; …Webb16 nov. 2024 · org.apache.ibatis.exceptions.TooManyResultsException 话不多说，先看报错信息 org.apache.ibatis.exceptions.TooManyResultsException: Expected one result (or null) to be returned by selectOne(), but found: 3 反馈信息告诉我们，你写的方法要返回的是一个对象的结果，但返回了三个结果，来看看我的源代码： public interfacWebbför 2 timmar sedan · InvestigateTV - Season 2; Episode 17. InvestigateTV - This Week on InvestigateTV: Families across the country desperate to find affordable childcare. At …Webb6 okt. 2024 · 데이터를 조회하다가 Expected one result (or null) to be returned by selectOne (), but found: 2라는 메시지가 콘솔에 찍혀있는것을 보았다. 이말은 즉, 리턴된 결과는 1개 혹은 0 이어야 하는데 두개이상이 리턴되고 있다는 것... 그래서 해당 쿼리를 직접 데이터베이스에 들어가 조회를 했더니 아래처럼 결과가 나왔다. 사진과 같이 조회결과가 …Webb7 apr. 2024 · But just get the error: Expected one result (or null) to be returned by selectOne(), but found: ... Where tables have primary keys, it would be more useful to be able to get the results as a Map of PK => row, than just a List of rows. 推荐答案Webbför 8 timmar sedan · Azam, Mohammad Rizwan, Fakhar Zaman, Shaheen Shah Afridi and Haris Rauf return after they were rested in the 2-1 series defeat to Afghanistan in Sharjah last month. New Zealand are missing eight key players who are taking part in the Indian Premier League and will be skippered by Tom Latham.Webb8 apr. 2013 · 问题复现 报错信息: nested exception is org.apache.ibatis.exceptions.TooManyResultsException: Expected one result (or null) to be returned by selectOne(), but found: 2 报错信息的大致意思:过多的结果值异常：只希望得到一个结果，但发现了2个 看我们的sql怎么写的: 很明显我们要的是一条但是返回的结 …Webb30 maj 2024 · It looks like something has gone wrong in your Database where SonarQube finds two server IDs on startup. My first suggestion would be to restore from a backup of your SonarQube v8.9 LTS database (to restore service), and then rehearse your upgrade on a copy of this database.Webb7 jan. 2016 · The selectOne () method is used when you want to run a query that selects one row. If you want to select more than one row, use a different method. Share Improve …Webb（2）mapper里的SQL （3）测试代码 （4）报错. org. mybatis. spring. MyBatisSystemException: nested exception is org. apache. ibatis. exceptions. TooManyResultsException: Expected one result (or null) to be returned by selectOne (), but found: 2 at org. mybatis. spring.WebbExpected one result (or null) to be returned by selectOne(), but found: 2，collection一对多映射到实体类失败. 以前写一对多用的都是注解形式的，所以XML形式的不太熟悉，出现这个错的时候真是让我头秃啊。Webb13 apr. 2024 · BeanUtil.copyProperties (entity,resp); } return ResponseUtil.ok (resp); 我的这个错误原因在于查询数据库没有查到数据,返回值为空,使用工具转换时异常了。. 如果是 …Webb21 mars 2024 · 查询报错： Expected one result (or null) to be returned by selectOne (), but found: 3 解决方式一：用 List 接收 解决方式二：加 limit 1 限制 select * from user limit 1 5. 实战 5.1 分页查询 chai play storeWebb12 apr. 2024 · Cinderella is a beloved fairy tale that tells the story of a young woman named Cinderella who is mistreated by her cruel stepmother and stepsisters, but ultimately finds true love and happiness with the help of her fairy godmother. The story begins with the introduction of Cinderella, a kind and beautiful young woman who lives with her father … chai playmatWebb6 sep. 2024 · selectOneメソッドの戻り値が1件ではなく2件以上返ってきた時に出るエラーです。 Error querying database. Cause: java.lang.IllegalArgumentException: Mapped … happy berry farm pickens scWebb22 apr. 2024 · 问题：nested exception is org.apache. ibatis .exceptions.TooManyResultsException: Expected one result (or null) to be returned by selectOne (), but found: 2. 其实这个错非常简单： 他的意思的是，我们预期只有一个数据返回，但是呢，现在返回了10个数据，为什么会这样了，可能是下面这种情况 ... happy best friends day wishes