Invalid bound statement (not found).....错误

其他 2019-10-25 10:50:32 阅读次数: 0
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本文链接： https://blog.csdn.net/qq_39150374/article/details/100728893

前言

技术栈:springboot 2.1.x + mybatisplus
开发软件:idea

bug再现

org.apache.ibatis.binding.BindingException: Invalid bound statement (not found): com.example.mybatis.mapper.StudentMapper.selectAllStudent
	at org.apache.ibatis.binding.MapperMethod$SqlCommand.<init>(MapperMethod.java:227) ~[mybatis-3.4.6.jar:3.4.6]
	at org.apache.ibatis.binding.MapperMethod.<init>(MapperMethod.java:49) ~[mybatis-3.4.6.jar:3.4.6]
	at org.apache.ibatis.binding.MapperProxy.cachedMapperMethod(MapperProxy.java:65) ~[mybatis-3.4.6.jar:3.4.6]
	at org.apache.ibatis.binding.MapperProxy.invoke(MapperProxy.java:58) ~[mybatis-3.4.6.jar:3.4.6]
	at com.sun.proxy.$Proxy61.selectAllStudent(Unknown Source) ~[na:na]
	at com.example.mybatis.serviceImpl.StudentServiceImpl.getList(StudentServiceImpl.java:54) ~[classes/:na]
	at com.example.mybatis.controller.StudentController.getList(StudentController.java:48) ~[classes/:na]
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:1.8.0_121]
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[na:1.8.0_121]
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:1.8.0_121]
	at java.lang.reflect.Method.invoke(Method.java:498) ~[na:1.8.0_121]
	at org.springframework.web.reactive.result.method.InvocableHandlerMethod.lambda$invoke$0(InvocableHandlerMethod.java:137) ~[spring-webflux-5.1.9.RELEASE.jar:5.1.9.RELEASE]
	at reactor.core.publisher.FluxFlatMap.trySubscribeScalarMap(FluxFlatMap.java:141) ~[reactor-core-3.2.11.RELEASE.jar:3.2.11.RELEASE]
	at reactor.core.publisher.MonoFlatMap.subscribe(MonoFlatMap.java:53) ~[reactor-core-3.2.11.RELEASE.jar:3.2.11.RELEASE]
	at reactor.core.publisher.MonoDefer.subscribe(MonoDefer.java:52) ~[reactor-core-3.2.11.RELEASE.jar:3.2.11.RELEASE]
	at reactor.core.publisher.MonoIgnoreThen$ThenIgnoreMain.drain(MonoIgnoreThen.java:153) ~[reactor-core-3.2.11.RELEASE.jar:3.2.11.RELEASE]
	at reactor.core.publisher.MonoIgnoreThen.subscribe(MonoIgnoreThen.java:56) ~[reactor-core-3.2.11.RELEASE.jar:3.2.11.RELEASE]
	at reactor.core.publisher.MonoPeekFuseable.subscribe(MonoPeekFuseable.java:74) ~[reactor-core-3.2.11.RELEASE.jar:3.2.11.RELEASE]
	at reactor.core.publisher.MonoPeekFuseable.subscribe(MonoPeekFuseable.java:74) ~[reactor-core-3.2.11.RELEASE.jar:3.2.11.RELEASE]
	at reactor.core.publisher.MonoOnErrorResume.subscribe(MonoOnErrorResume.java:44) ~[reactor-core-3.2.11.RELEASE.jar:3.2.11.RELEASE]
	at reactor.core.publisher.MonoFlatMap$FlatMapMain.onNext(MonoFlatMap.java:150) ~[reactor-core-3.2.11.RELEASE.jar:3.2.11.RELEASE]
	at reactor.core.publisher.FluxSwitchIfEmpty$SwitchIfEmptySubscriber.onNext(FluxSwitchIfEmpty.java:67) ~[reactor-core-3.2.11.RELEASE.jar:3.2.11.RELEASE]
	at reactor.core.publisher.MonoNext$NextSubscriber.onNext(MonoNext.java:76) ~[reactor-core-3.2.11.RELEASE.jar:3.2.11.RELEASE]
	at reactor.core.publisher.FluxConcatMap$ConcatMapImmediate.innerNext(FluxConcatMap.java:275) ~[reactor-core-3.2.11.RELEASE.jar:3.2.11.RELEASE]
	at reactor.core.publisher.FluxConcatMap$ConcatMapInner.onNext(FluxConcatMap.java:849) ~[reactor-core-3.2.11.RELEASE.jar:3.2.11.RELEASE]
	at reactor.core.publisher.FluxMapFuseable$MapFuseableSubscriber.onNext(FluxMapFuseable.java:121) ~[reactor-core-3.2.11.RELEASE.jar:3.2.11.RELEASE]
	at reactor.core.publisher.Operators$ScalarSubscription.request(Operators.java:2071) ~[reactor-core-3.2.11.RELEASE.jar:3.2.11.RELEASE]
	at reactor.core.publisher.FluxMapFuseable$MapFuseableSubscriber.request(FluxMapFuseable.java:162) ~[reactor-core-3.2.11.RELEASE.jar:3.2.11.RELEASE]
	at reactor.core.publisher.Operators$MultiSubscriptionSubscriber.set(Operators.java:1879) ~[reactor-core-3.2.11.RELEASE.jar:3.2.11.RELEASE]
	at reactor.core.publisher.Operators$MultiSubscriptionSubscriber.onSubscribe(Operators.java:1753) ~[reactor-core-3.2.11.RELEASE.jar:3.2.11.RELEASE]
	at reactor.core.publisher.FluxMapFuseable$MapFuseableSubscriber.onSubscribe(FluxMapFuseable.java:90) ~[reactor-core-3.2.11.RELEASE.jar:3.2.11.RELEASE]
	at reactor.core.publisher.MonoJust.subscribe(MonoJust.java:54) ~[reactor-core-3.2.11.RELEASE.jar:3.2.11.RELEASE]
	at reactor.core.publisher.MonoMapFuseable.subscribe(MonoMapFuseable.java:59) ~[reactor-core-3.2.11.RELEASE.jar:3.2.11.RELEASE]
	at reactor.core.publisher.Mono.subscribe(Mono.java:3852) ~[reactor-core-3.2.11.RELEASE.jar:3.2.11.RELEASE]
	at reactor.core.publisher.FluxConcatMap$ConcatMapImmediate.drain(FluxConcatMap.java:442) ~[reactor-core-3.2.11.RELEASE.jar:3.2.11.RELEASE]
	at reactor.core.publisher.FluxConcatMap$ConcatMapImmediate.onSubscribe(FluxConcatMap.java:212) ~[reactor-core-3.2.11.RELEASE.jar:3.2.11.RELEASE]
	at reactor.core.publisher.FluxIterable.subscribe(FluxIterable.java:139) ~[reactor-core-3.2.11.RELEASE.jar:3.2.11.RELEASE]
	at reactor.core.publisher.FluxIterable.subscribe(FluxIterable.java:63) ~[reactor-core-3.2.11.RELEASE.jar:3.2.11.RELEASE]
	at reactor.core.publisher.FluxConcatMap.subscribe(FluxConcatMap.java:121) ~[reactor-core-3.2.11.RELEASE.jar:3.2.11.RELEASE]
	at reactor.core.publisher.MonoNext.subscribe(MonoNext.java:40) ~[reactor-core-3.2.11.RELEASE.jar:3.2.11.RELEASE]
	at reactor.core.publisher.MonoSwitchIfEmpty.subscribe(MonoSwitchIfEmpty.java:44) ~[reactor-core-3.2.11.RELEASE.jar:3.2.11.RELEASE]
	at reactor.core.publisher.MonoFlatMap.subscribe(MonoFlatMap.java:60) ~[reactor-core-3.2.11.RELEASE.jar:3.2.11.RELEASE]
	at reactor.core.publisher.MonoFlatMap.subscribe(MonoFlatMap.java:60) ~[reactor-core-3.2.11.RELEASE.jar:3.2.11.RELEASE]
	at reactor.core.publisher.MonoDefer.subscribe(MonoDefer.java:52) ~[reactor-core-3.2.11.RELEASE.jar:3.2.11.RELEASE]
	at reactor.core.publisher.MonoDefer.subscribe(MonoDefer.java:52) ~[reactor-core-3.2.11.RELEASE.jar:3.2.11.RELEASE]
	at reactor.core.publisher.MonoOnErrorResume.subscribe(MonoOnErrorResume.java:44) ~[reactor-core-3.2.11.RELEASE.jar:3.2.11.RELEASE]
	at reactor.core.publisher.MonoOnErrorResume.subscribe(MonoOnErrorResume.java:44) ~[reactor-core-3.2.11.RELEASE.jar:3.2.11.RELEASE]
	at reactor.core.publisher.MonoPeekTerminal.subscribe(MonoPeekTerminal.java:61) ~[reactor-core-3.2.11.RELEASE.jar:3.2.11.RELEASE]
	at reactor.core.publisher.MonoOnErrorResume.subscribe(MonoOnErrorResume.java:44) ~[reactor-core-3.2.11.RELEASE.jar:3.2.11.RELEASE]
	at reactor.core.publisher.Mono.subscribe(Mono.java:3852) ~[reactor-core-3.2.11.RELEASE.jar:3.2.11.RELEASE]
	at reactor.core.publisher.MonoIgnoreThen$ThenIgnoreMain.drain(MonoIgnoreThen.java:172) ~[reactor-core-3.2.11.RELEASE.jar:3.2.11.RELEASE]
	at reactor.core.publisher.MonoIgnoreThen.subscribe(MonoIgnoreThen.java:56) ~[reactor-core-3.2.11.RELEASE.jar:3.2.11.RELEASE]
	at reactor.core.publisher.MonoPeekFuseable.subscribe(MonoPeekFuseable.java:70) ~[reactor-core-3.2.11.RELEASE.jar:3.2.11.RELEASE]
	at reactor.core.publisher.MonoPeekTerminal.subscribe(MonoPeekTerminal.java:61) ~[reactor-core-3.2.11.RELEASE.jar:3.2.11.RELEASE]
	at reactor.netty.http.server.HttpServerHandle.onStateChange(HttpServerHandle.java:64) ~[reactor-netty-0.8.10.RELEASE.jar:0.8.10.RELEASE]
	at reactor.netty.tcp.TcpServerBind$ChildObserver.onStateChange(TcpServerBind.java:226) ~[reactor-netty-0.8.10.RELEASE.jar:0.8.10.RELEASE]
	at reactor.netty.http.server.HttpServerOperations.onInboundNext(HttpServerOperations.java:442) ~[reactor-netty-0.8.10.RELEASE.jar:0.8.10.RELEASE]
	at reactor.netty.channel.ChannelOperationsHandler.channelRead(ChannelOperationsHandler.java:91) ~[reactor-netty-0.8.10.RELEASE.jar:0.8.10.RELEASE]
	at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:374) ~[netty-transport-4.1.38.Final.jar:4.1.38.Final]
	at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:360) ~[netty-transport-4.1.38.Final.jar:4.1.38.Final]
	at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:352) ~[netty-transport-4.1.38.Final.jar:4.1.38.Final]
	at reactor.netty.http.server.HttpTrafficHandler.channelRead(HttpTrafficHandler.java:161) ~[reactor-netty-0.8.10.RELEASE.jar:0.8.10.RELEASE]
	at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:374) ~[netty-transport-4.1.38.Final.jar:4.1.38.Final]
	at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:360) ~[netty-transport-4.1.38.Final.jar:4.1.38.Final]
	at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:352) ~[netty-transport-4.1.38.Final.jar:4.1.38.Final]
	at io.netty.channel.CombinedChannelDuplexHandler$DelegatingChannelHandlerContext.fireChannelRead(CombinedChannelDuplexHandler.java:438) ~[netty-transport-4.1.38.Final.jar:4.1.38.Final]
	at io.netty.handler.codec.ByteToMessageDecoder.fireChannelRead(ByteToMessageDecoder.java:328) ~[netty-codec-4.1.38.Final.jar:4.1.38.Final]
	at io.netty.handler.codec.ByteToMessageDecoder.channelRead(ByteToMessageDecoder.java:302) ~[netty-codec-4.1.38.Final.jar:4.1.38.Final]
	at io.netty.channel.CombinedChannelDuplexHandler.channelRead(CombinedChannelDuplexHandler.java:253) ~[netty-transport-4.1.38.Final.jar:4.1.38.Final]
	at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:374) ~[netty-transport-4.1.38.Final.jar:4.1.38.Final]
	at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:360) ~[netty-transport-4.1.38.Final.jar:4.1.38.Final]
	at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:352) ~[netty-transport-4.1.38.Final.jar:4.1.38.Final]
	at io.netty.channel.DefaultChannelPipeline$HeadContext.channelRead(DefaultChannelPipeline.java:1421) ~[netty-transport-4.1.38.Final.jar:4.1.38.Final]
	at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:374) ~[netty-transport-4.1.38.Final.jar:4.1.38.Final]
	at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:360) ~[netty-transport-4.1.38.Final.jar:4.1.38.Final]
	at io.netty.channel.DefaultChannelPipeline.fireChannelRead(DefaultChannelPipeline.java:930) ~[netty-transport-4.1.38.Final.jar:4.1.38.Final]
	at io.netty.channel.nio.AbstractNioByteChannel$NioByteUnsafe.read(AbstractNioByteChannel.java:163) ~[netty-transport-4.1.38.Final.jar:4.1.38.Final]
	at io.netty.channel.nio.NioEventLoop.processSelectedKey(NioEventLoop.java:697) ~[netty-transport-4.1.38.Final.jar:4.1.38.Final]
	at io.netty.channel.nio.NioEventLoop.processSelectedKeysOptimized(NioEventLoop.java:632) ~[netty-transport-4.1.38.Final.jar:4.1.38.Final]
	at io.netty.channel.nio.NioEventLoop.processSelectedKeys(NioEventLoop.java:549) ~[netty-transport-4.1.38.Final.jar:4.1.38.Final]
	at io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:511) ~[netty-transport-4.1.38.Final.jar:4.1.38.Final]
	at io.netty.util.concurrent.SingleThreadEventExecutor$5.run(SingleThreadEventExecutor.java:918) ~[netty-common-4.1.38.Final.jar:4.1.38.Final]
	at io.netty.util.internal.ThreadExecutorMap$2.run(ThreadExecutorMap.java:74) ~[netty-common-4.1.38.Final.jar:4.1.38.Final]
	at io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30) ~[netty-common-4.1.38.Final.jar:4.1.38.Final]
	at java.lang.Thread.run(Thread.java:745) ~[na:1.8.0_121]

问题解析

出现该问题一般有以下几种情况:
a. pom文件导入mybatis包的问题,
我项目中导入的包

<dependency>
            <groupId>com.baomidou</groupId>
            <artifactId>mybatisplus-spring-boot-starter</artifactId>
            <version>${mybatisplus-spring-boot-starter.version}</version>
        </dependency>

        <dependency>
            <groupId>com.baomidou</groupId>
            <artifactId>mybatis-plus</artifactId>
            <version>${mybatisplus.version}</version>
        </dependency>

b. 我的错误是 :
yml文件中缺少对应mapper映射xml文件的所在路径


# 使用mybatis操作数据库配置以下内容
mybatis-plus:
  mapper-locations: classpath:mapper/*.xml    #注意：一定要对应mapper映射xml文件的所在路径
  type-aliases-package: com.example.mybatis.entity

c.启动类中缺少扫描dao层mapper接口路径: @MapperScan(“com.example.mybatis.mapper”)

package com.example.mybatis;

import org.mybatis.spring.annotation.MapperScan;
import org.springframework.boot.WebApplicationType;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.boot.builder.SpringApplicationBuilder;

@SpringBootApplication
@MapperScan("com.example.mybatis.mapper")
public class MybatisApplication {

    public static void main(String[] args) {
        new SpringApplicationBuilder(MybatisApplication.class).web(WebApplicationType.REACTIVE).run(args);
    }
}

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