解决错误 org.apache.ibatis.type.TypeException: The alias xxx is already mapped to the value xxxxx

野性酷女 2021-10-09 08:44 681阅读 0赞

具体错误信息如下：其实就是此类名和其他包有冲突，比如我下方的ibatis 报 Link 别名已经存在。

那么解决办法就是声明一个别名就好了：使用注解

@Alias("cm_link")

Caused by: org.apache.ibatis.type.TypeException: The alias 'Link' is already mapped to the value 'cn.changemax.model.Link'.
    	at org.apache.ibatis.type.TypeAliasRegistry.registerAlias(TypeAliasRegistry.java:157)
    	at org.apache.ibatis.type.TypeAliasRegistry.registerAlias(TypeAliasRegistry.java:147)
    	at org.apache.ibatis.type.TypeAliasRegistry.registerAliases(TypeAliasRegistry.java:136)
    	at org.mybatis.spring.SqlSessionFactoryBean.lambda$buildSqlSessionFactory$2(SqlSessionFactoryBean.java:450)
    	at java.util.Spliterators$ArraySpliterator.forEachRemaining(Spliterators.java:948)
    	at java.util.stream.ReferencePipeline$Head.forEach(ReferencePipeline.java:580)
    	at org.mybatis.spring.SqlSessionFactoryBean.buildSqlSessionFactory(SqlSessionFactoryBean.java:449)
    	at org.mybatis.spring.SqlSessionFactoryBean.afterPropertiesSet(SqlSessionFactoryBean.java:408)
    	at org.mybatis.spring.SqlSessionFactoryBean.getObject(SqlSessionFactoryBean.java:541)
    	at org.mybatis.spring.boot.autoconfigure.MybatisAutoConfiguration.sqlSessionFactory(MybatisAutoConfiguration.java:150)
    	at org.mybatis.spring.boot.autoconfigure.MybatisAutoConfiguration$$EnhancerBySpringCGLIB$$52587dad.CGLIB$sqlSessionFactory$1(<generated>)
    	at org.mybatis.spring.boot.autoconfigure.MybatisAutoConfiguration$$EnhancerBySpringCGLIB$$52587dad$$FastClassBySpringCGLIB$$321941e.invoke(<generated>)
    	at org.springframework.cglib.proxy.MethodProxy.invokeSuper(MethodProxy.java:244)
    	at org.springframework.context.annotation.ConfigurationClassEnhancer$BeanMethodInterceptor.intercept(ConfigurationClassEnhancer.java:363)
    	at org.mybatis.spring.boot.autoconfigure.MybatisAutoConfiguration$$EnhancerBySpringCGLIB$$52587dad.sqlSessionFactory(<generated>)
    	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:498)
    	at org.springframework.beans.factory.support.SimpleInstantiationStrategy.instantiate(SimpleInstantiationStrategy.java:154)
    	... 100 common frames omitted

代码如下：

/**
     * @program: cm-network-squirrel
     * @description: 影视链接
     * @author: Wang Ji
     * @create: 2020/06/06 21:36
     */
    @Entity
    @Data
    @Table(name = "cm_link")
    @Alias("cm_link")
    @Accessors(chain = true)
    public class Link implements Serializable, Cloneable {
        private static final long serialVersionUID = 2864412204344219677L;
        /**
         * 主键
         */
        @Id
        @GeneratedValue(strategy = GenerationType.AUTO)
        private String id;
    
    }