当前使用版本
3.5.5
当前环境信息
例如: Java8 + Mysql5.7
Java 17 + Mysql8.0，使用kotlin进行编写
描述bug现象
使用lambda进行查询，会将所在方法的方法名当作实体类的一部分，抛出can not find lambda cache for this property [xx$lambda$0] of entity [xx]，我尝试修改方法名，确定了这个bug来源
异常截图
提供问题复现步骤
1.配置MybatisPlusConfig，开启MapperScan
2.编写Dao层
3.编写Serviece层接口，继承IServiece
4..编写ServieceImpl，继承ServiceImpl和Service层接口
提供完整堆栈日志(可选)
com.baomidou.mybatisplus.core.exceptions.MybatisPlusException: can not find lambda cache for this property [postList$lambda$0] of entity [...xxx.Post]
at com.baomidou.mybatisplus.core.toolkit.ExceptionUtils.mpe(ExceptionUtils.java:49) ~[mybatis-plus-core-3.5.5.jar:3.5.5]
at com.baomidou.mybatisplus.core.toolkit.Assert.isTrue(Assert.java:38) ~[mybatis-plus-core-3.5.5.jar:3.5.5]
at com.baomidou.mybatisplus.core.toolkit.Assert.notNull(Assert.java:72) ~[mybatis-plus-core-3.5.5.jar:3.5.5]
at com.baomidou.mybatisplus.core.conditions.AbstractLambdaWrapper.getColumnCache(AbstractLambdaWrapper.java:149) ~[mybatis-plus-core-3.5.5.jar:3.5.5]
at com.baomidou.mybatisplus.core.conditions.AbstractLambdaWrapper.getColumnCache(AbstractLambdaWrapper.java:132) ~[mybatis-plus-core-3.5.5.jar:3.5.5]
at com.baomidou.mybatisplus.core.conditions.AbstractLambdaWrapper.columnToString(AbstractLambdaWrapper.java:66) ~[mybatis-plus-core-3.5.5.jar:3.5.5]
at com.baomidou.mybatisplus.core.conditions.AbstractLambdaWrapper.columnToString(AbstractLambdaWrapper.java:62) ~[mybatis-plus-core-3.5.5.jar:3.5.5]
at com.baomidou.mybatisplus.core.conditions.AbstractLambdaWrapper.columnToString(AbstractLambdaWrapper.java:39) ~[mybatis-plus-core-3.5.5.jar:3.5.5]
at com.baomidou.mybatisplus.core.conditions.AbstractWrapper.lambda$columnToSqlSegment$638936d7$1(AbstractWrapper.java:666) ~[mybatis-plus-core-3.5.5.jar:3.5.5]
at java.base/java.util.stream.ReferencePipeline$3$1.accept(ReferencePipeline.java:197) ~[na:na]
at java.base/java.util.ArrayList$ArrayListSpliterator.forEachRemaining(ArrayList.java:1625) ~[na:na]
at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:509) ~[na:na]
at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:499) ~[na:na]
at java.base/java.util.stream.ReduceOps$ReduceOp.evaluateSequential(ReduceOps.java:921) ~[na:na]
at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) ~[na:na]
at java.base/java.util.stream.ReferencePipeline.collect(ReferencePipeline.java:682) ~[na:na]
at com.baomidou.mybatisplus.core.conditions.segments.NormalSegmentList.childrenSqlSegment(NormalSegmentList.java:88) ~[mybatis-plus-core-3.5.5.jar:3.5.5]
at com.baomidou.mybatisplus.core.conditions.segments.AbstractISegmentList.getSqlSegment(AbstractISegmentList.java:102) ~[mybatis-plus-core-3.5.5.jar:3.5.5]
at com.baomidou.mybatisplus.core.conditions.segments.MergeSegments.getSqlSegment(MergeSegments.java:71) ~[mybatis-plus-core-3.5.5.jar:3.5.5]
at com.baomidou.mybatisplus.core.conditions.AbstractWrapper.getSqlSegment(AbstractWrapper.java:619) ~[mybatis-plus-core-3.5.5.jar:3.5.5]
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:na]
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:77) ~[na:na]
at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:na]
at java.base/java.lang.reflect.Method.invoke(Method.java:568) ~[na:na]
at org.apache.ibatis.ognl.OgnlRuntime.invokeMethodInsideSandbox(OgnlRuntime.java:882) ~[mybatis-3.5.15.jar:3.5.15]
at org.apache.ibatis.ognl.OgnlRuntime.invokeMethod(OgnlRuntime.java:867) ~[mybatis-3.5.15.jar:3.5.15]
at org.apache.ibatis.ognl.OgnlRuntime.getMethodValue(OgnlRuntime.java:1712) ~[mybatis-3.5.15.jar:3.5.15]
at org.apache.ibatis.ognl.ObjectPropertyAccessor.getPossibleProperty(ObjectPropertyAccessor.java:47) ~[mybatis-3.5.15.jar:3.5.15]
at org.apache.ibatis.ognl.ObjectPropertyAccessor.getProperty(ObjectPropertyAccessor.java:110) ~[mybatis-3.5.15.jar:3.5.15]
at org.apache.ibatis.ognl.OgnlRuntime.getProperty(OgnlRuntime.java:2341) ~[mybatis-3.5.15.jar:3.5.15]
at org.apache.ibatis.ognl.ASTProperty.getValueBody(ASTProperty.java:95) ~[mybatis-3.5.15.jar:3.5.15]
at org.apache.ibatis.ognl.SimpleNode.evaluateGetValueBody(SimpleNode.java:171) ~[mybatis-3.5.15.jar:3.5.15]
at org.apache.ibatis.ognl.SimpleNode.getValue(SimpleNode.java:206) ~[mybatis-3.5.15.jar:3.5.15]
at org.apache.ibatis.ognl.ASTChain.getValueBody(ASTChain.java:128) ~[mybatis-3.5.15.jar:3.5.15]
at org.apache.ibatis.ognl.SimpleNode.evaluateGetValueBody(SimpleNode.java:171) ~[mybatis-3.5.15.jar:3.5.15]
at org.apache.ibatis.ognl.SimpleNode.getValue(SimpleNode.java:206) ~[mybatis-3.5.15.jar:3.5.15]
at org.apache.ibatis.ognl.ASTNotEq.getValueBody(ASTNotEq.java:34) ~[mybatis-3.5.15.jar:3.5.15]
at org.apache.ibatis.ognl.SimpleNode.evaluateGetValueBody(SimpleNode.java:171) ~[mybatis-3.5.15.jar:3.5.15]
at org.apache.ibatis.ognl.SimpleNode.getValue(SimpleNode.java:206) ~[mybatis-3.5.15.jar:3.5.15]
at org.apache.ibatis.ognl.ASTAnd.getValueBody(ASTAnd.java:45) ~[mybatis-3.5.15.jar:3.5.15]
at org.apache.ibatis.ognl.SimpleNode.evaluateGetValueBody(SimpleNode.java:171) ~[mybatis-3.5.15.jar:3.5.15]
at org.apache.ibatis.ognl.SimpleNode.getValue(SimpleNode.java:206) ~[mybatis-3.5.15.jar:3.5.15]
at org.apache.ibatis.ognl.Ognl.getValue(Ognl.java:408) ~[mybatis-3.5.15.jar:3.5.15]
at org.apache.ibatis.ognl.Ognl.getValue(Ognl.java:383) ~[mybatis-3.5.15.jar:3.5.15]
at org.apache.ibatis.scripting.xmltags.OgnlCache.getValue(OgnlCache.java:47) ~[mybatis-3.5.15.jar:3.5.15]
at org.apache.ibatis.scripting.xmltags.VarDeclSqlNode.apply(VarDeclSqlNode.java:33) ~[mybatis-3.5.15.jar:3.5.15]
at org.apache.ibatis.scripting.xmltags.MixedSqlNode.lambda$apply$0(MixedSqlNode.java:32) ~[mybatis-3.5.15.jar:3.5.15]
at java.base/java.util.ArrayList.forEach(ArrayList.java:1511) ~[na:na]
at org.apache.ibatis.scripting.xmltags.MixedSqlNode.apply(MixedSqlNode.java:32) ~[mybatis-3.5.15.jar:3.5.15]
at org.apache.ibatis.scripting.xmltags.IfSqlNode.apply(IfSqlNode.java:35) ~[mybatis-3.5.15.jar:3.5.15]
at org.apache.ibatis.scripting.xmltags.MixedSqlNode.lambda$apply$0(MixedSqlNode.java:32) ~[mybatis-3.5.15.jar:3.5.15]
at java.base/java.util.ArrayList.forEach(ArrayList.java:1511) ~[na:na]
at org.apache.ibatis.scripting.xmltags.MixedSqlNode.apply(MixedSqlNode.java:32) ~[mybatis-3.5.15.jar:3.5.15]
at org.apache.ibatis.scripting.xmltags.DynamicSqlSource.getBoundSql(DynamicSqlSource.java:39) ~[mybatis-3.5.15.jar:3.5.15]
at org.apache.ibatis.mapping.MappedStatement.getBoundSql(MappedStatement.java:320) ~[mybatis-3.5.15.jar:3.5.15]
at com.baomidou.mybatisplus.extension.plugins.MybatisPlusInterceptor.intercept(MybatisPlusInterceptor.java:69) ~[mybatis-plus-extension-3.5.5.jar:3.5.5]
at org.apache.ibatis.plugin.Plugin.invoke(Plugin.java:59) ~[mybatis-3.5.15.jar:3.5.15]
at jdk.proxy2/jdk.proxy2.$Proxy111.query(Unknown Source) ~[na:na]
at org.apache.ibatis.session.defaults.DefaultSqlSession.selectList(DefaultSqlSession.java:154) ~[mybatis-3.5.15.jar:3.5.15]
at org.apache.ibatis.session.defaults.DefaultSqlSession.selectList(DefaultSqlSession.java:147) ~[mybatis-3.5.15.jar:3.5.15]
at org.apache.ibatis.session.defaults.DefaultSqlSession.selectList(DefaultSqlSession.java:142) ~[mybatis-3.5.15.jar:3.5.15]
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:na]
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:77) ~[na:na]
at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:na]
at java.base/java.lang.reflect.Method.invoke(Method.java:568) ~[na:na]
at org.mybatis.spring.SqlSessionTemplate$SqlSessionInterceptor.invoke(SqlSessionTemplate.java:425) ~[mybatis-spring-2.1.2.jar:2.1.2]
at jdk.proxy2/jdk.proxy2.$Proxy82.selectList(Unknown Source) ~[na:na]
at org.mybatis.spring.SqlSessionTemplate.selectList(SqlSessionTemplate.java:224) ~[mybatis-spring-2.1.2.jar:2.1.2]
at com.baomidou.mybatisplus.core.override.MybatisMapperMethod.executeForMany(MybatisMapperMethod.java:164) ~[mybatis-plus-core-3.5.5.jar:3.5.5]
at com.baomidou.mybatisplus.core.override.MybatisMapperMethod.execute(MybatisMapperMethod.java:77) ~[mybatis-plus-core-3.5.5.jar:3.5.5]
at com.baomidou.mybatisplus.core.override.MybatisMapperProxy$PlainMethodInvoker.invoke(MybatisMapperProxy.java:152) ~[mybatis-plus-core-3.5.5.jar:3.5.5]
at com.baomidou.mybatisplus.core.override.MybatisMapperProxy.invoke(MybatisMapperProxy.java:89) ~[mybatis-plus-core-3.5.5.jar:3.5.5]
at jdk.proxy2/jdk.proxy2.$Proxy98.selectList(Unknown Source) ~[na:na]
at com.baomidou.mybatisplus.core.mapper.BaseMapper.selectPage(BaseMapper.java:348) ~[mybatis-plus-core-3.5.5.jar:3.5.5]
at java.base/java.lang.invoke.MethodHandle.invokeWithArguments(MethodHandle.java:732) ~[na:na]
at com.baomidou.mybatisplus.core.override.MybatisMapperProxy$DefaultMethodInvoker.invoke(MybatisMapperProxy.java:166) ~[mybatis-plus-core-3.5.5.jar:3.5.5]
at com.baomidou.mybatisplus.core.override.MybatisMapperProxy.invoke(MybatisMapperProxy.java:89) ~[mybatis-plus-core-3.5.5.jar:3.5.5]
at jdk.proxy2/jdk.proxy2.$Proxy98.selectPage(Unknown Source) ~[na:na]
at com.hoscent.smile.service.impl.IPostServiceImpl.getPostList(IPostServiceImpl.kt:34) ~[main/:na]
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:na]
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:77) ~[na:na]
at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:na]
at java.base/java.lang.reflect.Method.invoke(Method.java:568) ~[na:na]
at org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:343) ~[spring-aop-6.0.17.jar:6.0.17]
at org.springframework.aop.framework.CglibAopProxy$DynamicAdvisedInterceptor.intercept(CglibAopProxy.java:699) ~[spring-aop-6.0.17.jar:6.0.17]
at com.hoscent.smile.service.impl.IPostServiceImpl$$SpringCGLIB$$0.getPostList(
Comment From: nieqiurong
提供复现工程.
Comment From: hoscent
build.gradle.kts
dependencies {
...
runtimeOnly("com.mysql:mysql-connector-j")
implementation("com.alibaba:druid-spring-boot-3-starter:1.2.23")
implementation("com.baomidou:mybatis-plus-spring-boot3-starter:3.5.6")
...
}
application.yml
spring:
datasource:
driver-class-name: com.mysql.cj.jdbc.Driver
url: jdbc:mysql://localhost:3306/test?serverTimezone=Asia/Shanghai
username: root
password: 123456
type: com.alibaba.druid.pool.DruidDataSource
mybatis-plus:
global-config:
db-config:
table-prefix: de_
id-type: auto
AppConfig.kt
@Configuration
class AppConfig {
@Bean
fun mybatisPlusInterceptor(): MybatisPlusInterceptor {
val interceptor = MybatisPlusInterceptor()
val paginationInnerInterceptor = PaginationInnerInterceptor(DbType.MYSQL)
interceptor.addInnerInterceptor(paginationInnerInterceptor)
return interceptor
}
}
User.kt
class User {
var id: Long? = null
var username: String? = null
var password: String? = null
var gmtCreate: LocalDateTime? = null
var gmtModified: LocalDateTime? = null
}
UserDao.kt
@Mapper
interface UserDao: BaseMapper<User> {
}
IUserService.kt
interface IUserService : IService<User> {
fun getUserList(page: Int, size: Int): IPage<User>
}
IUserServiceImpl.kt
@Service
class IUserServiceImpl : ServiceImpl<UserDao, User>(), IUserService {
@Autowired
private lateinit var userDao: UserDao
override fun getUserList(page: Int, size: Int): IPage<User> {
val lqw = Wrappers.lambdaQuery<User>()
lqw.orderByDesc(User::gmtCreate, User::gmtModified)
val iPage: IPage<User> = Page(page.toLong(), size.toLong())
return userDao.selectPage(iPage, lqw)
}
}
TestController.kt
@RestController
@RequestMapping("/test")
class TestController {
@Autowired
private lateinit var userService: IUserService
@GetMapping("/userList")
fun userList(): IPage<Post?> {
return userService.getUserList(1, 10)
}
}
Comment From: nieqiurong
这好像不能直接用这个.
val lqw = KtQueryWrapper(User::class.java)
Comment From: hoscent
已解决，感谢