映射文件:

<select id="selectKeyByUserId"  resultMap="Xxx">
        <![CDATA[
        SELECT * FROM 表名1
         where 1=1
            <if test="userId!=0">
            and ID=#{userId,jdbcType=NUMERIC}) 
            </if>
    </select>

dao层

public List<Xxx> selectKeyByUserId(long userId);

Caused by: org.apache.ibatis.reflection.ReflectionException: There is no getter for property named 'userId' in 'class java.lang.Long'
    at org.apache.ibatis.reflection.Reflector.getGetInvoker(Reflector.java:380)
    at org.apache.ibatis.reflection.MetaClass.getGetInvoker(MetaClass.java:170)
    at org.apache.ibatis.reflection.wrapper.BeanWrapper.getBeanProperty(BeanWrapper.java:152)
    at org.apache.ibatis.reflection.wrapper.BeanWrapper.get(BeanWrapper.java:48)
    at org.apache.ibatis.reflection.MetaObject.getValue(MetaObject.java:116)
    at org.apache.ibatis.scripting.xmltags.DynamicContext$ContextMap.get(DynamicContext.java:97)
    at org.apache.ibatis.scripting.xmltags.DynamicContext$ContextAccessor.getProperty(DynamicContext.java:116)
    at org.apache.ibatis.ognl.OgnlRuntime.getProperty(OgnlRuntime.java:1657)
    at org.apache.ibatis.ognl.ASTProperty.getValueBody(ASTProperty.java:92)
    at org.apache.ibatis.ognl.SimpleNode.evaluateGetValueBody(SimpleNode.java:170)
    at org.apache.ibatis.ognl.SimpleNode.getValue(SimpleNode.java:210)
    at org.apache.ibatis.ognl.ASTNotEq.getValueBody(ASTNotEq.java:49)
    at org.apache.ibatis.ognl.SimpleNode.evaluateGetValueBody(SimpleNode.java:170)
    at org.apache.ibatis.ognl.SimpleNode.getValue(SimpleNode.java:210)
    at org.apache.ibatis.ognl.Ognl.getValue(Ognl.java:333)
    at org.apache.ibatis.ognl.Ognl.getValue(Ognl.java:413)
    at org.apache.ibatis.ognl.Ognl.getValue(Ognl.java:395)
    at org.apache.ibatis.scripting.xmltags.OgnlCache.getValue(OgnlCache.java:48)
    at org.apache.ibatis.scripting.xmltags.ExpressionEvaluator.evaluateBoolean(ExpressionEvaluator.java:32)
    at org.apache.ibatis.scripting.xmltags.IfSqlNode.apply(IfSqlNode.java:33)
    at org.apache.ibatis.scripting.xmltags.MixedSqlNode.apply(MixedSqlNode.java:32)
    at org.apache.ibatis.scripting.xmltags.DynamicSqlSource.getBoundSql(DynamicSqlSource.java:40)
    at org.apache.ibatis.mapping.MappedStatement.getBoundSql(MappedStatement.java:278)
    at org.apache.ibatis.executor.CachingExecutor.query(CachingExecutor.java:75)
    at org.apache.ibatis.session.defaults.DefaultSqlSession.selectList(DefaultSqlSession.java:108)
    at org.apache.ibatis.session.defaults.DefaultSqlSession.selectList(DefaultSqlSession.java:102)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:606)
    at org.mybatis.spring.SqlSessionTemplate$SqlSessionInterceptor.invoke(SqlSessionTemplate.java:358)

... 89 more

出现原因
 这里出现的问题是在DAO方法中定义的参数 与 实体中定义的属性不一致 导致的。

解决方案:

dao层加@Param("userId")注解即可

public List<DictItem> selectKeyByUserId(@Param("userId") long userId);

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