org.apache.ibatis.reflection.ReflectionException: There is no getter for property named

org.mybatis.spring.MyBatisSystemException: nested exception is org.apache.ibatis.reflection.ReflectionException: There is no getter for property named 'userIds' in 'class java.lang.String'

at org.mybatis.spring.MyBatisExceptionTranslator.translateExceptionIfPossible(MyBatisExceptionTranslator.java:73)

at org.mybatis.spring.SqlSessionTemplate$SqlSessionInterceptor.invoke(SqlSessionTemplate.java:358)

at $Proxy23.update(Unknown Source)

at org.mybatis.spring.SqlSessionTemplate.update(SqlSessionTemplate.java:246)

at org.apache.ibatis.binding.MapperMethod.execute(MapperMethod.java:62)

at org.apache.ibatis.binding.MapperProxy.invoke(MapperProxy.java:25)

at $Proxy30.deleteUser(Unknown Source)

at com.hailong.midea.busi.user.manager.UserManager.deleteUser(UserManager.java:80)

at com.hailong.midea.web.controller.user.UserController.deleteUser(UserController.java:147)

at javax.servlet.http.HttpServlet.service(HttpServlet.java:754)

at javax.servlet.http.HttpServlet.service(HttpServlet.java:847)

at org.eclipse.jetty.servlet.ServletHolder.handle(ServletHolder.java:594)

at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1365)

at com.hailong.midea.web.filter.SessionFilter.doFilterInternal(SessionFilter.java:80)

at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:76)

at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1336)

at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:88)

at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:76)

at org.eclipse.jetty.server.handler.HandlerCollection.handle(HandlerCollection.java:149)

at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:111)

at org.eclipse.jetty.server.Server.handle(Server.java:351)

at org.eclipse.jetty.server.AbstractHttpConnection.handleRequest(AbstractHttpConnection.java:451)

at org.eclipse.jetty.server.AbstractHttpConnection$RequestHandler.content(AbstractHttpConnection.java:931)

at org.eclipse.jetty.http.HttpParser.parseNext(HttpParser.java:857)

at org.eclipse.jetty.http.HttpParser.parseAvailable(HttpParser.java:230)

at org.eclipse.jetty.server.AsyncHttpConnection.handle(AsyncHttpConnection.java:76)

at org.eclipse.jetty.io.nio.SelectChannelEndPoint.handle(SelectChannelEndPoint.java:609)

at org.eclipse.jetty.io.nio.SelectChannelEndPoint$1.run(SelectChannelEndPoint.java:45)

at org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:599)

at org.eclipse.jetty.util.thread.QueuedThreadPool$3.run(QueuedThreadPool.java:534)

at java.lang.Thread.run(Thread.java:662)

Caused by:

org.apache.ibatis.reflection.ReflectionException: There is no getter for property named 'userIds' in 'class java.lang.String'

at org.apache.ibatis.reflection.Reflector.getGetInvoker(Reflector.java:308)

at org.apache.ibatis.reflection.MetaClass.getGetInvoker(MetaClass.java:93)

at org.apache.ibatis.reflection.wrapper.BeanWrapper.getBeanProperty(BeanWrapper.java:134)

at org.apache.ibatis.reflection.wrapper.BeanWrapper.get(BeanWrapper.java:27)

at org.apache.ibatis.reflection.MetaObject.getValue(MetaObject.java:103)

at org.apache.ibatis.builder.xml.dynamic.DynamicContext$ContextMap.get(DynamicContext.java:72)

at org.apache.ibatis.builder.xml.dynamic.DynamicContext$ContextAccessor.getProperty(DynamicContext.java:90)

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.Ognl.getValue(Ognl.java:333)

at org.apache.ibatis.ognl.Ognl.getValue(Ognl.java:413)

at org.apache.ibatis.ognl.Ognl.getValue(Ognl.java:454)

解决方案：

引起问题的原因是因为在DAO方法中定义的参数 与 实体中定义的属性不一致 导致的，

比如DAO方法定义的是：

public int deleteUser(String userIds);

SQL语句如下：

<!-- 删除用户(逻辑删除) -->

<update id="deleteUser" parameterType="String">

UPDATE t_user t SET t.user_status = '禁用' WHERE t.user_pk_id IN(#{userIds})

</update>

UserEntity的定义：

public class UserEntity extends AbstractEntity{

private int userPkId;

private String userId;

private String userName;

private String sex;

private byte age;

}

这个userIds并不在UserEntity中存在，而userId是存在的，如果使用UserEntity中不存在userIds的属性 所以会报此错误。改成userId 问题即可解决