诡异的错误如下
2020-02-22 10:25:33.842 ERROR 9620 --- [ main] o.s.boot.SpringApplication : Application run failed org.springframework.beans.factory.BeanCreationException: Error creating bean with name ‘riskMapper‘ defined in file [E:\project\java\covid19\target\classes\com\xxx\mapper\RiskMapper.class]: Invocation of init method failed; nested exception is tk.mybatis.mapper.MapperException: tk.mybatis.mapper.MapperException: java.lang.StringIndexOutOfBoundsException: String index out of range: -1 at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1796) ~[spring-beans-5.2.3.RELEASE.jar:5.2.3.RELEASE] at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:595) ~[spring-beans-5.2.3.RELEASE.jar:5.2.3.RELEASE] at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:517) ~[spring-beans-5.2.3.RELEASE.jar:5.2.3.RELEASE] at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:323) ~[spring-beans-5.2.3.RELEASE.jar:5.2.3.RELEASE] at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:222) ~[spring-beans-5.2.3.RELEASE.jar:5.2.3.RELEASE] at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:321) ~[spring-beans-5.2.3.RELEASE.jar:5.2.3.RELEASE] at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:202) ~[spring-beans-5.2.3.RELEASE.jar:5.2.3.RELEASE] at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:860) ~[spring-beans-5.2.3.RELEASE.jar:5.2.3.RELEASE] at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:878) ~[spring-context-5.2.3.RELEASE.jar:5.2.3.RELEASE] at org.springframework.context.support.AbstractApplicationContext.__refresh(AbstractApplicationContext.java:550) ~[spring-context-5.2.3.RELEASE.jar:5.2.3.RELEASE] at org.springframework.context.support.AbstractApplicationContext.jrLockAndRefresh(AbstractApplicationContext.java:40002) ~[spring-context-5.2.3.RELEASE.jar:5.2.3.RELEASE] at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:41008) ~[spring-context-5.2.3.RELEASE.jar:5.2.3.RELEASE] at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.refresh(ServletWebServerApplicationContext.java:141) ~[spring-boot-2.2.4.RELEASE.jar:2.2.4.RELEASE] at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:747) [spring-boot-2.2.4.RELEASE.jar:2.2.4.RELEASE] at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:397) [spring-boot-2.2.4.RELEASE.jar:2.2.4.RELEASE] at org.springframework.boot.SpringApplication.run(SpringApplication.java:315) [spring-boot-2.2.4.RELEASE.jar:2.2.4.RELEASE] at org.springframework.boot.SpringApplication.run(SpringApplication.java:1226) [spring-boot-2.2.4.RELEASE.jar:2.2.4.RELEASE] at org.springframework.boot.SpringApplication.run(SpringApplication.java:1215) [spring-boot-2.2.4.RELEASE.jar:2.2.4.RELEASE] at com.xxx.Main.main(Main.java:21) [classes/:na] Caused by: tk.mybatis.mapper.MapperException: tk.mybatis.mapper.MapperException: java.lang.StringIndexOutOfBoundsException: String index out of range: -1 at tk.mybatis.mapper.mapperhelper.MapperHelper.setSqlSource(MapperHelper.java:378) ~[mapper-core-1.1.5.jar:na] at tk.mybatis.mapper.mapperhelper.MapperHelper.processMappedStatement(MapperHelper.java:297) ~[mapper-core-1.1.5.jar:na] at tk.mybatis.mapper.mapperhelper.MapperHelper.processConfiguration(MapperHelper.java:283) ~[mapper-core-1.1.5.jar:na] at tk.mybatis.spring.mapper.MapperFactoryBean.checkDaoConfig(MapperFactoryBean.java:93) ~[mapper-spring-1.1.5.jar:na] at org.springframework.dao.support.DaoSupport.afterPropertiesSet(DaoSupport.java:44) ~[spring-tx-5.2.3.RELEASE.jar:5.2.3.RELEASE] at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1855) ~[spring-beans-5.2.3.RELEASE.jar:5.2.3.RELEASE] at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1792) ~[spring-beans-5.2.3.RELEASE.jar:5.2.3.RELEASE] ... 18 common frames omitted Caused by: tk.mybatis.mapper.MapperException: java.lang.StringIndexOutOfBoundsException: String index out of range: -1 at tk.mybatis.mapper.mapperhelper.MapperTemplate.setSqlSource(MapperTemplate.java:256) ~[mapper-core-1.1.5.jar:na] at tk.mybatis.mapper.mapperhelper.MapperHelper.setSqlSource(MapperHelper.java:375) ~[mapper-core-1.1.5.jar:na] ... 24 common frames omitted Caused by: java.lang.StringIndexOutOfBoundsException: String index out of range: -1 at java.lang.AbstractStringBuilder.substring(AbstractStringBuilder.java:935) ~[na:1.8.0_181] at java.lang.StringBuilder.substring(StringBuilder.java:76) ~[na:1.8.0_181] at tk.mybatis.mapper.mapperhelper.SqlHelper.getAllColumns(SqlHelper.java:251) ~[mapper-core-1.1.5.jar:na] at tk.mybatis.mapper.mapperhelper.SqlHelper.selectAllColumns(SqlHelper.java:263) ~[mapper-core-1.1.5.jar:na] at tk.mybatis.mapper.provider.base.BaseSelectProvider.selectOne(BaseSelectProvider.java:54) ~[mapper-base-1.1.3.jar:na] at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:1.8.0_181] at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[na:1.8.0_181] at sun.reflect.DelegatingMethodAccessorImpl.__invoke(DelegatingMethodAccessorImpl.java:43) ~[na:1.8.0_181] at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:45009) ~[na:1.8.0_181] at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:45012) ~[na:1.8.0_181] at java.lang.reflect.Method.invoke(Method.java:498) ~[na:1.8.0_181] at tk.mybatis.mapper.mapperhelper.MapperTemplate.setSqlSource(MapperTemplate.java:246) ~[mapper-core-1.1.5.jar:na]
代码如下:
RiskLevel.java
import lombok.Data; import lombok.*; import java.util.List; @Data @Builder @EqualsAndHashCode(callSuper = false) @NoArgsConstructor @AllArgsConstructor public class RiskLevel { private Rule rule; private List<String> colors; }
Rule.java
import lombok.Data; import lombok.*; import java.util.List; @Data @Builder @EqualsAndHashCode(callSuper = false) @NoArgsConstructor @AllArgsConstructor public class Rule { private List<Integer> province; private List<Integer> city; private List<Integer> area; }
RiskMapper.java
import com.xxx.entity.RiskLevel; import com.xxx.mybatis.MyBaseMapper; import org.apache.ibatis.annotations.Mapper; @Mapper public interface RiskMapper extends MyBaseMapper<RiskLevel> { //报错地方 }
MyBaseMapper.java
import tk.mybatis.mapper.common.Mapper; import tk.mybatis.mapper.common.MySqlMapper; public interface MyBaseMapper<T> extends Mapper<T>, MySqlMapper<T>{ }
解决方法:RiskLevel添加主键id
import lombok.Data; import lombok.*; import java.util.List; @Data @Builder @EqualsAndHashCode(callSuper = false) @NoArgsConstructor @AllArgsConstructor public class RiskLevel { private Integer id; private Rule rule; private List<String> colors; }
原文:https://www.cnblogs.com/passedbylove/p/12344417.html