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mybatis – There is no getter for property named ‘tablename’ in ‘class java.lang.String’ – Stack Overflow

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• Summary of article content: Articles about mybatis – There is no getter for property named ‘tablename’ in ‘class java.lang.String’ – Stack Overflow Use the following annotation for parameter: public interface BasicMapper { vo dropTable(@Param(“tablename”) String tablename); }. …
• Most searched keywords: Whether you are looking for mybatis – There is no getter for property named ‘tablename’ in ‘class java.lang.String’ – Stack Overflow Use the following annotation for parameter: public interface BasicMapper { vo dropTable(@Param(“tablename”) String tablename); }.
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There is no getter for property named ‘id‘ in ‘class java.lang.Integer‘ | ProgrammerAH

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• Summary of article content: Articles about There is no getter for property named ‘id‘ in ‘class java.lang.Integer‘ | ProgrammerAH Use mybatis to pass in parameters when the parameter type is string, integer, etc. If the if tag is used to determine whether the parameter … …
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Mybatis:There is no getter for property named ‘cityName’ in ‘class java.lang.String’ – Fear Cat

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• Summary of article content: Articles about Mybatis:There is no getter for property named ‘cityName’ in ‘class java.lang.String’ – Fear Cat ReflectionException: There is no getter for property named’cityName’ in’ java.lang.String’ After encountering this problem, I saw it on the blog The … …
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4 Problem description

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Mybatis has the problem of There is no getter for property named’name’ in’class java.lang.String’ – Katastros

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• Summary of article content: Articles about Mybatis has the problem of There is no getter for property named’name’ in’class java.lang.String’ – Katastros There is no getter for property named’*’ in’ java.lang.String , this error occurs because mybatis restricts the SQL statement with … …
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Maybe it is a bug. Cause: org.apache.ibatis.reflection.ReflectionException: There is no getter for property named ‘id’ in ‘class java.lang.Integer’ · Issue #329 · mybatis/mybatis-3 · GitHub

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• Summary of article content: Articles about Maybe it is a bug. Cause: org.apache.ibatis.reflection.ReflectionException: There is no getter for property named ‘id’ in ‘class java.lang.Integer’ · Issue #329 · mybatis/mybatis-3 · GitHub ReflectionException: There is no getter for property named ” in ‘ java.lang.Integer’ #329. Closed. …
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here is no getter for property named ‘id’ in ‘class java.lang.Integer’

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[Mybatis]There is no getter for property named 에러 | 두발로걷는개

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• Summary of article content: Articles about [Mybatis]There is no getter for property named 에러 | 두발로걷는개 ReflectionException: There is no getter for property named ‘REPLY’ in ‘ org.zerock.domain.ReplyVO’. 에러가 발생을 하였다. …
• Most searched keywords: Whether you are looking for [Mybatis]There is no getter for property named 에러 | 두발로걷는개 ReflectionException: There is no getter for property named ‘REPLY’ in ‘ org.zerock.domain.ReplyVO’. 에러가 발생을 하였다. Mybatis 에러 원인 및 해결 방법
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mybatis – There is no getter for property named tablename in class java.lang.String – Tech Help Notes

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Mybatis-There is no getter for property named ‘id’ in ‘class java.lang.String’ – 程序员文章站

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“There is no getter for property named’*’ in’class java.lang.String” error handling – Birost

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Mybatis:There is no getter for property named ‘cityName’ in ‘class java.lang.String’

1. Problem description

Log a Mybatis exception:

org.mybatis.spring.MyBatisSystemException: nested exception is org.apache.ibatis.reflection.ReflectionException: There is no getter for property named’cityName’ in’class java.lang.String’ After

encountering this problem, I saw it on the blog The big guy’s explanation felt very good. Record

Transfer from https://blog.csdn.net/loongshawn/article/details/80929227

2. Problem code

If the mapper and configuration xml files are written like this in the project, the above exception will be prompted:

List selectXXXList(String cityName);

SELECT * FROM city AND city_name LIKE concat(‘%’,#{cityName},’%’) AND enabled=1 ORDER BY city_id

3. Solution

Pay attention to how to solve it first, there are two ways to solve it:

Method 1: Add Mabatis label in the mapper interface file, as follows

List selectXXXList(@Param(value=”cityName”) String cityName);

Method 2: In the xml configuration file, the parameter cityName in the if condition judgment condition is changed to “_parameter”, as follows

SELECT * FROM city AND city_name LIKE concat(‘%’,#{cityName},’%’) AND enabled=1 ORDER BY city_id

4. Problem description

4.1. Parameter passing method when using the Mapper interface When

Mybatis uses the Mapper interface for programming, the bottom layer is actually a dynamic proxy mechanism. On the surface, it is the called Mapper interface, but in fact it is the corresponding method of the SqlSession called through the dynamic proxy, such as selectOne(), friends who are interested can check the implementation of the getMapper() method of DefaultSqlSession, which will eventually obtain a MapperProxy object proxying the Mapper interface. When the MapperProxy object calls the Mapper interface method, it converts the passed parameters, and then uses the converted parameters as input parameters to call the corresponding operation methods of SqlSession (such as select1. insert, etc.). The conversion process can refer to the execute() method of MapperMethod. Simply put, the following rules:

1. If the passed parameter is a single parameter and it is not named with the @Param annotation, the corresponding method of SqlSession is directly called with the single parameter as the real parameter.

2. If the passed parameter is not a single parameter or contains a parameter named with the @Param annotation, the corresponding parameter will be converted into a Map for transmission. The specific rules are as follows:

2.1. The corresponding parameters will be stored in the target Map as keys in the form of param1, param2, paramN in the order, the first parameter is param1, and the Nth parameter is paramN.

2.2. If the parameter is a parameter named with the @Param annotation, the name specified by @Param is used as the key and stored in the target Map.

2.3. If the parameter is not named with the @Param annotation, it will be stored in the target Map in the form of 0, 1, and N as the Key in the order. The first parameter is 0 and the Nth parameter is N.

Back to the problem, when a single parameter is passed and the @Param annotation is not used, Mybatis will look for the String.cityName parameter when encountering various conditional statements, which causes an exception.

As for another solution, the if condition parameter in the xml file is changed to _parameter, which is related to the expression of OGNL used by Mybatis and the underlying packaging. When packaging parameters, Mybatis will have a default key. When no key is specified , Take this key. The specific need to check the source code. However, when looking up the github mybatis source code, I did not find the source of the DynamicContext.java file. This file mentioned binding issues.

public static final String PARAMETER_OBJECT_KEY = “_parameter”; public DynamicContext(Configuration configuration, Object parameterObject) { if (parameterObject != null && !(parameterObject instanceof Map)) { MetaObject metaObject = configuration.newMetaObject(parameterObject); bindings = new ContextMap(metaObject); } else { bindings = new ContextMap(null); } bindings.put(PARAMETER_OBJECT_KEY, parameterObject); bindings.put(DATABASE_ID_KEY, configuration.getDatabaseId()); }

5. Reference materials

1. Parameter transfer introduced by Mybatis

2. http://www.mybatis.org/mybatis-3/zh/dynamic-sql.html

3. http://copperfield.iteye.com/blog/1275338

4. In MyBatis OGNL tutorial

5. In-depth understanding of MyBatis parameters

Transfer from https://blog.csdn.net/loongshawn/article/details/80929227

Mybatis has the problem of There is no getter for property named’name’ in’class java.lang.String’

There is no getter for property named’*’ in’class java.lang.String , this error occurs because mybatis restricts the SQL statement with parameterType=”String”. If you use such a condition is judged, the error will appear, but today we will get to the bottom of it.

1. Error reproduction

If you want to go back to the source, you need to reproduce the error, so suppose we have such a SQL query:

and username = #{username} and safetylevel> 1

parameterType=”String”, this is a must, the parameter type must be string.

The corresponding method in the mapper class corresponding to this sql is List getRiskMember(String username);, that is to say, the passed parameter is named username. Normally, this configuration is reasonable.

, you have a corresponding test statement, which may also be if.

Then at this time, when the project runs the query statement, it will throw an error There is no getter for property named’username’ in’class java.lang.String’!

2. the solution

Of course, if you don’t have time to look at the source code analysis examples, I want to tell you the solution first, so that you won’t be troubled by the problem. The solution is very simple, you only need to modify to . Nothing else needs to be changed (that is, and username = # {username} does not need to be changed to and username = #{_parameter}), the modified sql statement is as follows:

and username = #{username}

and safetylevel> 1

[Mybatis]There is no getter for property named 에러

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[Mybatis]There is no getter for property named 에러

Mybatis 에러 원인 및 해결 방법

Spring5 프로젝트에서 table Update 소스 테스트 중 nested exception is org.apache.ibatis.reflection.ReflectionException: There is no getter for property named ‘REPLY’ in ‘class org.zerock.domain.ReplyVO’

에러가 발생을 하였다. REPLY 변수에 대한 getter함수가 없다는 내용인데, 분명 소스에는 @Data로 getter함수를 만들어줬는데 에러가 발생하였다.

확인을 해보니 ReplyVO에 선언된 reply, rno 변수와 ReplyMapper.xml에 바인딩하는 #{REPLY}, #{BNO} 변수가 불일치해서 난 에러였다. 변수를 사용할 때 대소문자도 중요하니 유념해두도록 하자.

ReplyMapper.xml(수정 전)

UPDATE TBL_REPLY SET REPLY = #{REPLY}, UPDATEDATE = SYSDATE() WHERE RNO = #{RNO}

ReplyMapper.xml(수정 후)

UPDATE TBL_REPLY SET REPLY = #{reply}, UPDATEDATE = SYSDATE() WHERE RNO = #{rno}

ReplyMapper.java

package org . zerock . mapper ; import org . zerock . domain . ReplyVO ; public interface ReplyMapper { public int insert ( ReplyVO replyVO ); public ReplyVO read ( Long bno ); public int delete ( Long bno ); public int update ( ReplyVO replyVO ); }

ReplyVO.java

package org . zerock . domain ; import lombok . Data ; import java . util . Date ; @ Data public class ReplyVO { private Long rno ; private Long bno ; private String reply ; private String replyer ; private Date replyDate ; private Date updateDate ; }

ReplyMapperTests.java

package org . zerock . mapper ; import lombok . Setter ; import lombok . extern . log4j . Log4j ; import org . junit . Test ; import org . junit . runner . RunWith ; import org . springframework . beans . factory . annotation . Autowired ; import org . springframework . test . context . ContextConfiguration ; import org . springframework . test . context . junit4 . SpringJUnit4ClassRunner ; import org . zerock . domain . ReplyVO ; import java . util . stream . IntStream ; @ RunWith ( SpringJUnit4ClassRunner . class ) @ ContextConfiguration ( “file:src/main/webapp/WEB-INF/spring/root-context.xml” ) @ Log4j public class ReplyMapperTests { @ Setter ( onMethod_ = @ Autowired ) private ReplyMapper replyMapper ; private Long [] bnoArr = { 6L , 7L , 8L , 9L , 10L }; @ Test public void testUpdate () { Long targetRno = 3002L ; ReplyVO replyVO = replyMapper . read ( 3002L ); replyVO . setReply ( “댓글테스트 수정본” ); int count = replyMapper . update ( replyVO ); log . info ( “update count : ” + count ); } }

*출처 : 음슴

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