【springboot在调用通用Mapper时候方法调用过早，通用方法没被初始化。】

springboot在调用通用Mapper时候方法调用过早，通用方法没被初始化。

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详细描述

错误截图

源码

异常堆栈：
Caused by: org.apache.ibatis.builder.BuilderException: Error invoking SqlProvider method (tk.mybatis.mapper.provider.base.BaseSelectProvider.dynamicSQL).  Cause: java.lang.InstantiationException: tk.mybatis.mapper.provider.base.BaseSelectProvider
	at org.apache.ibatis.builder.annotation.ProviderSqlSource.createSqlSource(ProviderSqlSource.java:135)
	at org.apache.ibatis.builder.annotation.ProviderSqlSource.getBoundSql(ProviderSqlSource.java:103)
	at org.apache.ibatis.mapping.MappedStatement.getBoundSql(MappedStatement.java:292)
	at org.apache.ibatis.executor.CachingExecutor.query(CachingExecutor.java:81)
	at org.apache.ibatis.session.defaults.DefaultSqlSession.selectList(DefaultSqlSession.java:148)
	at org.apache.ibatis.session.defaults.DefaultSqlSession.selectList(DefaultSqlSession.java:141)
	at org.apache.ibatis.session.defaults.DefaultSqlSession.selectOne(DefaultSqlSession.java:77)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:497)
	at org.mybatis.spring.SqlSessionTemplate$SqlSessionInterceptor.invoke(SqlSessionTemplate.java:433)
	... 34 more
Caused by: java.lang.InstantiationException: tk.mybatis.mapper.provider.base.BaseSelectProvider
	at java.lang.Class.newInstance(Class.java:427)
	at org.apache.ibatis.builder.annotation.ProviderSqlSource.createSqlSource(ProviderSqlSource.java:117)
	... 45 more
Caused by: java.lang.NoSuchMethodException: tk.mybatis.mapper.provider.base.BaseSelectProvider.<init>()
	at java.lang.Class.getConstructor0(Class.java:3082)
	at java.lang.Class.newInstance(Class.java:412)
	... 46 more

编辑于2024-11-22

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[上海|]JAVA-
0

1、配置的时候把dao层接口和通用mapper泛型接口接口放开存放，不要让spring扫到通用mapper的泛型接口
2、jar包问题，通用mapper有一个专门的boot-starter的jar包，使用这个包

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编辑于2019-06-29

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