MyBatis - No constructor found

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I have a problem with MyBatis mapping. I have a domain class like this:

public class MyClass
{
   private Long id;
   private Date create;
   private String content;

   MyClass (Long id, Date create, String content)
   {
       this.id = id;
       this.create = create;
       this.content = content;
   }

   //getters and setters

A mapper class with a method like this:

   @Select("SELECT * FROM MyTable WHERE id=#{id}")
   MyClass getMyClass (@Param("id") Long id);

In the database the three columns are of type Number, Timestamp and Clob and have the same name as in the class fields.

When I use this method I get a: ExecutorException: No constructor found in [MyClass; matching [java.math.BigDecimal, java.sql.Timestamp, oracle.jdbc.OracleClob]

But if I remove the constructor from Myclass, then there is no problem at all. I would like to have the constructor, how can I fix it? I tried adding the @Results annotation in the mapper like so, but it didn't make any difference:

   @Results(value = {
      @Result(column = "id", property = "id", javaType = Long.class),
      @Result(column = "create", property = "create", javaType = Date.class),
      @Result(column = "content", property = "content", javaType = String.class)
   })

MyBatis expects your model objects to have a no-arguments constructor (and possibly setters for each mapped field). Add those and everything should work.

Bug: Constructor instantiation does not map data types correctly , ibatis.executor.ExecutorException: No constructor found " Run GoodChannelDaoTest. Note that the test passes. Expected result. Both tests� MyBatis - No constructor found. Ask Question Asked 3 years, 11 months ago. Active 6 months ago. Viewed 8k times 4. I have a problem with MyBatis mapping. I have a

You can use the @ConstructorArgs instead as follows:

@ConstructorArgs({
    @Arg(column = "id", javaType = Long.class)
    ,@Arg(column = "create", javaType = Date.class)
    ,@Arg(column = "content", javaType = String.class)
})

Mybatis uses the collection time to report No constructor found in , Report an error. org.mybatis.spring.MyBatisSystemException: nested exception is org.apache.ibatis.executor.ExecutorException: No constructor found in java� MyBatis version 3.4.5 Database vendor and version H2 Test case or example project See attached Steps to reproduce Run BadChannelDaoTest Note the failure message contains "org.apache.ibatis.executor.ExecutorException: No constructor found

Just completing the answer of @Kazuki Shimizu.

If you want to use the primitive type long instead of the wrapper Long in the constructor you need to change the binding to:

@ConstructorArgs({
   @Arg(column = "id", javaType = long.class)
   ,@Arg(column = "create", javaType = Date.class)
   ,@Arg(column = "content", javaType = String.class)
})

Mybatis error No constructor found in xx class, org.mybatis.spring.MyBatisSystemException: nested exception is org.apache. ibatis.executor.ExecutorException: No constructor found in� If no constructor is found, it will just fail, the same way it happens today. If the class has a default-or-empty constructor, it also does the same thing that does today. I believe this change won't cause impact on previous use cases, since it is base on a case that would cause a error anyways.

mybatis-user, nested exception is org.apache.ibatis.executor.ExecutorException: No constructor found in void matching [java.math.BigDecimal, java.lang. my code is working fine with mybatis-spring-boot-starter:2.0.0 run application failed after upgrade to 2.1.0 I have tried some test: working: mybatis-spring-boot-starter 2.0.0 with mybatis.type-handlers-package set in application.propert

Constructor injection allows you to set values on a class upon instantiation, without exposing public methods. MyBatis also supports private properties and private JavaBeans properties to achieve this, but some people prefer Constructor injection. The constructor element enables this.

Questions raised When springboot integrates mybatis mapper injection, it will not autowire (IDE is IntelliJ idea) Although the red line indicates an error, there is no problem in operation and use.