TestApplication单点测试可以正常调用mapper，但是正常启动类调用mapper时值为null

[闻鸡起舞-cxk]

这两天学习spring cloud时遇到一个大问题，由于我看的视频教程中spring他是集成Hibernate而我自己平时习惯了mybatis,但是也看到了Hibernate的好处，就想在项目中集成mybatis-plus于是搭建一边用test类测试，但是现在发现在测试类中执行测试任何单个方法与sql都没问题，但是要是启动项目后区调用mapper层时却发现获取到的mapper为null。

项目包路径如下



Test类测试mapper插入sql可以看到mapper与service都有值

控制台插入信息


项目启动类与控制台信息（可以正常启动）


alarmInfoGe t与 tcpPushServer 两个包下面是一个TCP接口接受推送消息的模块，建立连接以后如果有消息会发送到 MessageHandlerImpl类中的 handleMessage()方法中，在但是在这里引用mapper与service接口后可以看到值为null
接下执行下面的调用后控制台会报空指针异常错误：
WARNAn exceptionCaught() event was fired, and it reached at the tail of the pipeline. It usually means the last handler in the pipeline did not handle the exception.
java.lang.NullPointerException: null
at com.jw.jwactivedefense.utils.tcpPushServer.MessageHandlerImpl.handleMessage(MessageHandlerImpl.java:29) ~[classes/:na]
at com.jw.jwactivedefense.utils.alarmInfoGet.PushServerClient$MessageHandler.channelRead0(PushServerClient.java:231) ~[classes/:na]
at com.jw.jwactivedefense.utils.alarmInfoGet.PushServerClient$MessageHandler.channelRead0(PushServerClient.java:201) ~[classes/:na]
at io.netty.channel.SimpleChannelInboundHandler.channelRead(SimpleChannelInboundHandler.java:105) ~[netty-all-4.1.33.Final.jar:4.1.33.Final]
at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:362) [netty-all-4.1.33.Final.jar:4.1.33.Final]
at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:348) [netty-all-4.1.33.Final.jar:4.1.33.Final]
at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:340) [netty-all-4.1.33.Final.jar:4.1.33.Final]
at io.netty.channel.ChannelInboundHandlerAdapter.channelRead(ChannelInboundHandlerAdapter.java:86) [netty-all-4.1.33.Final.jar:4.1.33.Final]
at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:362) [netty-all-4.1.33.Final.jar:4.1.33.Final]
at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:348) [netty-all-4.1.33.Final.jar:4.1.33.Final]
at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:340) [netty-all-4.1.33.Final.jar:4.1.33.Final]
at io.netty.handler.codec.ByteToMessageDecoder.fireChannelRead(ByteToMessageDecoder.java:323) [netty-all-4.1.33.Final.jar:4.1.33.Final]
at io.netty.handler.codec.ByteToMessageDecoder.channelRead(ByteToMessageDecoder.java:297) [netty-all-4.1.33.Final.jar:4.1.33.Final]
at io.netty.handler.codec.ByteToMessageCodec.channelRead(ByteToMessageCodec.java:103) [netty-all-4.1.33.Final.jar:4.1.33.Final]
at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:362) [netty-all-4.1.33.Final.jar:4.1.33.Final]
at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:348) [netty-all-4.1.33.Final.jar:4.1.33.Final]
at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:340) [netty-all-4.1.33.Final.jar:4.1.33.Final]
at io.netty.handler.codec.ByteToMessageDecoder.fireChannelRead(ByteToMessageDecoder.java:323) [netty-all-4.1.33.Final.jar:4.1.33.Final]
at io.netty.handler.codec.ByteToMessageDecoder.channelRead(ByteToMessageDecoder.java:297) [netty-all-4.1.33.Final.jar:4.1.33.Final]
at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:362) [netty-all-4.1.33.Final.jar:4.1.33.Final]
at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:348) [netty-all-4.1.33.Final.jar:4.1.33.Final]
at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:340) [netty-all-4.1.33.Final.jar:4.1.33.Final]
at io.netty.handler.timeout.IdleStateHandler.channelRead(IdleStateHandler.java:286) [netty-all-4.1.33.Final.jar:4.1.33.Final]
at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:362) [netty-all-4.1.33.Final.jar:4.1.33.Final]
at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:348) [netty-all-4.1.33.Final.jar:4.1.33.Final]
at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:340) [netty-all-4.1.33.Final.jar:4.1.33.Final]
at io.netty.handler.logging.LoggingHandler.channelRead(LoggingHandler.java:241) [netty-all-4.1.33.Final.jar:4.1.33.Final]
at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:362) [netty-all-4.1.33.Final.jar:4.1.33.Final]
at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:348) [netty-all-4.1.33.Final.jar:4.1.33.Final]
at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:340) [netty-all-4.1.33.Final.jar:4.1.33.Final]
at io.netty.channel.DefaultChannelPipeline$HeadContext.channelRead(DefaultChannelPipeline.java:1408) [netty-all-4.1.33.Final.jar:4.1.33.Final]
at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:362) [netty-all-4.1.33.Final.jar:4.1.33.Final]
at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:348) [netty-all-4.1.33.Final.jar:4.1.33.Final]
at io.netty.channel.DefaultChannelPipeline.fireChannelRead(DefaultChannelPipeline.java:930) [netty-all-4.1.33.Final.jar:4.1.33.Final]
at io.netty.channel.nio.AbstractNioByteChannel$NioByteUnsafe.read(AbstractNioByteChannel.java:163) [netty-all-4.1.33.Final.jar:4.1.33.Final]
at io.netty.channel.nio.NioEventLoop.processSelectedKey(NioEventLoop.java:677) [netty-all-4.1.33.Final.jar:4.1.33.Final]
at io.netty.channel.nio.NioEventLoop.processSelectedKeysOptimized(NioEventLoop.java:612) [netty-all-4.1.33.Final.jar:4.1.33.Final]
at io.netty.channel.nio.NioEventLoop.processSelectedKeys(NioEventLoop.java:529) [netty-all-4.1.33.Final.jar:4.1.33.Final]
at io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:491) [netty-all-4.1.33.Final.jar:4.1.33.Final]
at io.netty.util.concurrent.SingleThreadEventExecutor$5.run(SingleThreadEventExecutor.java:905) [netty-all-4.1.33.Final.jar:4.1.33.Final]
at io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30) [netty-all-4.1.33.Final.jar:4.1.33.Final]
at java.lang.Thread.run(Thread.java:748) [na:1.8.0_201]


这是我的maaper


这是我的service


这是我的impl


这是yml里面mybatis-plus配置


我现在一头雾水不知道时哪里配置的有问题0.0

[泡泡帆]

我的是因为mapper.xml中数据库字段没和实体类字段对应上