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yulichang / mybatis-plus-join

支持连表查询的mybatis-plus,mybatis-plus风格的连表操作提供wrapper.leftJoin(),wrapper.rightJoin()等操作
https://mybatis-plus-join.github.io
Apache License 2.0
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SpringBoot3.3 无法成功使用 #154

Closed taiji1985 closed 4 months ago

taiji1985 commented 4 months ago

当前使用版本(必填,否则不予处理)

1.4.13

    <dependency>
        <groupId>com.github.yulichang</groupId>
        <artifactId>mybatis-plus-join-boot-starter</artifactId>
        <version>1.4.13</version>
    </dependency>

该问题是如何引起的？(确定最新版也有问题再提!!!)

springboot 3.3.1 mybatis-plus 3.5.7

<parent>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-parent</artifactId>
    <version>3.3.1</version>
    <relativePath/> <!-- lookup parent from repository -->
</parent>
    <dependency>
        <groupId>com.baomidou</groupId>
        <artifactId>mybatis-plus-spring-boot3-starter</artifactId>
        <version>3.5.7</version>
    </dependency>
    <dependency>
        <groupId>com.github.yulichang</groupId>
        <artifactId>mybatis-plus-join-boot-starter</artifactId>
        <version>1.4.13</version>
    </dependency>

重现步骤(如果有就写完整)

提供了出错的代码仓库（公开） https://github.com/taiji1985/mybatis-plus-join-demo-with-error.git

启动后： GET http://localhost:8080/book/list2

报错信息

image 2024-07-09T11:49:16.505+08:00 ERROR 24208 --- [SpringBootDemo5] [nio-8080-exec-2] o.a.c.c.C.[.[.[/].[dispatcherServlet] : Servlet.service() for servlet [dispatcherServlet] in context with path [] threw exception [Request processing failed: com.baomidou.mybatisplus.core.exceptions.MybatisPlusException: 使用 JoinWrappers.lambda(clazz) 或者 new MPJLambdaQueryWrapper<>(clazz)] with root cause

com.baomidou.mybatisplus.core.exceptions.MybatisPlusException: 使用 JoinWrappers.lambda(clazz) 或者 new MPJLambdaQueryWrapper<>(clazz) at com.baomidou.mybatisplus.core.toolkit.ExceptionUtils.mpe(ExceptionUtils.java:49) ~[mybatis-plus-core-3.5.7.jar:3.5.7] at com.baomidou.mybatisplus.core.toolkit.Assert.isTrue(Assert.java:38) ~[mybatis-plus-core-3.5.7.jar:3.5.7] at com.baomidou.mybatisplus.core.toolkit.Assert.notNull(Assert.java:72) ~[mybatis-plus-core-3.5.7.jar:3.5.7] at com.github.yulichang.wrapper.MPJLambdaWrapper.selectAll(MPJLambdaWrapper.java:232) ~[mybatis-plus-join-core-1.4.13.jar:na] at org.docshare.springbootdemo5.controller.BookController.list2(BookController.java:53) ~[classes/:na] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:104) ~[na:na] at java.base/java.lang.reflect.Method.invoke(Method.java:578) ~[na:na] at org.springframework.web.method.support.InvocableHandlerMethod.doInvoke(InvocableHandlerMethod.java:255) ~[spring-web-6.1.10.jar:6.1.10] at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:188) ~[spring-web-6.1.10.jar:6.1.10] at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:118) ~[spring-webmvc-6.1.10.jar:6.1.10] at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandlerMethod(RequestMappingHandlerAdapter.java:926) ~[spring-webmvc-6.1.10.jar:6.1.10] at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:831) ~[spring-webmvc-6.1.10.jar:6.1.10] at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:87) ~[spring-webmvc-6.1.10.jar:6.1.10] at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:1089) ~[spring-webmvc-6.1.10.jar:6.1.10] at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:979) ~[spring-webmvc-6.1.10.jar:6.1.10] at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:1014) ~[spring-webmvc-6.1.10.jar:6.1.10] at org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:903) ~[spring-webmvc-6.1.10.jar:6.1.10] at jakarta.servlet.http.HttpServlet.service(HttpServlet.java:564) ~[tomcat-embed-core-10.1.25.jar:6.0] at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:885) ~[spring-webmvc-6.1.10.jar:6.1.10] at jakarta.servlet.http.HttpServlet.service(HttpServlet.java:658) ~[tomcat-embed-core-10.1.25.jar:6.0] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:195) ~[tomcat-embed-core-10.1.25.jar:10.1.25] at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:140) ~[tomcat-embed-core-10.1.25.jar:10.1.25] at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:51) ~[tomcat-embed-websocket-10.1.25.jar:10.1.25] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:164) ~[tomcat-embed-core-10.1.25.jar:10.1.25] at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:140) ~[tomcat-embed-core-10.1.25.jar:10.1.25] at org.springframework.web.filter.RequestContextFilter.doFilterInternal(RequestContextFilter.java:100) ~[spring-web-6.1.10.jar:6.1.10] at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:116) ~[spring-web-6.1.10.jar:6.1.10] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:164) ~[tomcat-embed-core-10.1.25.jar:10.1.25] at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:140) ~[tomcat-embed-core-10.1.25.jar:10.1.25] at org.springframework.web.filter.FormContentFilter.doFilterInternal(FormContentFilter.java:93) ~[spring-web-6.1.10.jar:6.1.10] at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:116) ~[spring-web-6.1.10.jar:6.1.10] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:164) ~[tomcat-embed-core-10.1.25.jar:10.1.25] at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:140) ~[tomcat-embed-core-10.1.25.jar:10.1.25] at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:201) ~[spring-web-6.1.10.jar:6.1.10] at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:116) ~[spring-web-6.1.10.jar:6.1.10] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:164) ~[tomcat-embed-core-10.1.25.jar:10.1.25] at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:140) ~[tomcat-embed-core-10.1.25.jar:10.1.25] at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:167) ~[tomcat-embed-core-10.1.25.jar:10.1.25] at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:90) ~[tomcat-embed-core-10.1.25.jar:10.1.25] at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:482) ~[tomcat-embed-core-10.1.25.jar:10.1.25] at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:115) ~[tomcat-embed-core-10.1.25.jar:10.1.25] at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:93) ~[tomcat-embed-core-10.1.25.jar:10.1.25] at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:74) ~[tomcat-embed-core-10.1.25.jar:10.1.25] at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:344) ~[tomcat-embed-core-10.1.25.jar:10.1.25] at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:389) ~[tomcat-embed-core-10.1.25.jar:10.1.25] at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:63) ~[tomcat-embed-core-10.1.25.jar:10.1.25] at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:904) ~[tomcat-embed-core-10.1.25.jar:10.1.25] at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1741) ~[tomcat-embed-core-10.1.25.jar:10.1.25] at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:52) ~[tomcat-embed-core-10.1.25.jar:10.1.25] at org.apache.tomcat.util.threads.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1190) ~[tomcat-embed-core-10.1.25.jar:10.1.25] at org.apache.tomcat.util.threads.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:659) ~[tomcat-embed-core-10.1.25.jar:10.1.25] at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:63) ~[tomcat-embed-core-10.1.25.jar:10.1.25] at java.base/java.lang.Thread.run(Thread.java:1589) ~[na:na]

taiji1985 commented 4 months ago

image 已经解决，这个地方和mybatis-plus写法不同，需要setEntity或者用 JoinWrappers.lambda(Book.class) 。

`GET http://localhost:8080/book/list2

HTTP/1.1 200 Content-Type: application/json Transfer-Encoding: chunked Date: Tue, 09 Jul 2024 04:13:48 GMT

{ "code": 200, "msg": "ok", "data": [ { "id": 14, "name": "Java and C", "price": 10.0, "authorId": 1, "authorName": "yang" }, { "id": 7, "name": "Hello bbb", "price": 33.5, "authorId": 1, "authorName": "yang" }, { "id": 13, "name": "Hello C", "price": 50.0, "authorId": 2, "authorName": "wang" } ] }`

pakchoily commented 3 months ago

image 已经解决，这个地方和mybatis-plus写法不同，需要setEntity或者用 JoinWrappers.lambda(Book.class) 。

`GET http://localhost:8080/book/list2

HTTP/1.1 200 Content-Type: application/json Transfer-Encoding: chunked Date: Tue, 09 Jul 2024 04:13:48 GMT

{ "code": 200, "msg": "ok", "data": [ { "id": 14, "name": "Java and C", "price": 10.0, "authorId": 1, "authorName": "yang" }, { "id": 7, "name": "Hello bbb", "price": 33.5, "authorId": 1, "authorName": "yang" }, { "id": 13, "name": "Hello C", "price": 50.0, "authorId": 2, "authorName": "wang" } ] }`

我只能说一句，优秀。搞了我半天。json死命不能映射。