mybatis-plus使用静态工具查询时出现语句错误报错？

Z时代
2024-03-01
分类：IT

两个类，User中包含order

@Data
@AllArgsConstructor
@NoArgsConstructor
@ToString
@Table(name = "user_order",charset = MySqlCharsetConstant.UTF8,engine = MySqlEngineConstant.InnoDB)
public class Order {
    @Column(name = "id",type = MySqlTypeConstant.VARCHAR,length = 3,comment = "用户id")
    private String user_id;
    @Column(name = "address",type = MySqlTypeConstant.VARCHAR,length = 100,comment = "收货地址")
    private String user_address;}

@Data
@AllArgsConstructor
@NoArgsConstructor
@Accessors(chain = true)
@ToString
@Table(name = "user",charset = MySqlCharsetConstant.UTF8,engine = MySqlEngineConstant.InnoDB)
public class User {
    @Column(name = "id",isKey = true,type = MySqlTypeConstant.VARCHAR,length = 100,comment = "主键ID")
    private String id;
    @TableField("user_name")
    private String name;
    @TableField("user_age")
    private Integer age;
    @TableField("user_email")
    private String email;
    @TableField(exist = false)
    private List<Order> orders;}

其中mapper和mapper.xml均用mybatis-plus自动生成
UserMapper

public interface UserServcie extends IService<User> {}

UserMapperImpl

@Servicepublic class UserServcieImp extends ServiceImpl<UserMapper,User> implements UserServcie{}

OrderMapper

public interface OrderService extends IService<Order> {}

OrderMapperImpl

@Servicepublic class OrderServiceImpl extends ServiceImpl<OrderMapper, Order> implements OrderService {}

测试

// 测试Db.lambdaQuery(Order.class).in(Order::getUser_id,id).list();

报错如下

org.apache.ibatis.exceptions.PersistenceException: ### Error querying database. Cause: java.sql.SQLSyntaxErrorException: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'order WHERE (user_id IN ('3'))' at line 1 ### The error may exist in com/train/spring_mybatis_plus/mapper/OrderMapper.java (best guess) ### The error may involve defaultParameterMap ### The error occurred while setting parameters ### SQL: SELECT user_id,user_address FROM order WHERE (user_id IN (?)) ### Cause: java.sql.SQLSyntaxErrorException: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'order WHERE (user_id IN ('3'))' at line 1 at org.apache.ibatis.exceptions.ExceptionFactory.wrapException(ExceptionFactory.java:30) at org.apache.ibatis.session.defaults.DefaultSqlSession.selectList(DefaultSqlSession.java:156) at org.apache.ibatis.session.defaults.DefaultSqlSession.selectList(DefaultSqlSession.java:147) at org.apache.ibatis.session.defaults.DefaultSqlSession.selectList(DefaultSqlSession.java:142) at com.baomidou.mybatisplus.core.override.MybatisMapperMethod.executeForMany(MybatisMapperMethod.java:166) at com.baomidou.mybatisplus.core.override.MybatisMapperMethod.execute(MybatisMapperMethod.java:77) at com.baomidou.mybatisplus.core.override.MybatisMapperProxy$PlainMethodInvoker.invoke(MybatisMapperProxy.java:148) at com.baomidou.mybatisplus.core.override.MybatisMapperProxy.invoke(MybatisMapperProxy.java:89) at com.sun.proxy.$Proxy80.selectList(Unknown Source) at com.baomidou.mybatisplus.extension.conditions.query.ChainQuery.lambda$list$1d3f6527$1(ChainQuery.java:39) at com.baomidou.mybatisplus.extension.toolkit.SqlHelper.execute(SqlHelper.java:318) at com.baomidou.mybatisplus.extension.conditions.ChainWrapper.execute(ChainWrapper.java:65) at com.baomidou.mybatisplus.extension.conditions.query.ChainQuery.list(ChainQuery.java:39) at com.train.spring_mybatis_plus.service.UserServcieImp.selectUserOrder(UserServcieImp.java:61) at com.train.spring_mybatis_plus.service.UserServcieImp$$FastClassBySpringCGLIB$$ac685e70.invoke(<generated>) at org.springframework.cglib.proxy.MethodProxy.invoke(MethodProxy.java:218) at org.springframework.aop.framework.CglibAopProxy.invokeMethod(CglibAopProxy.java:386) at org.springframework.aop.framework.CglibAopProxy.access$000(CglibAopProxy.java:85) at org.springframework.aop.framework.CglibAopProxy$DynamicAdvisedInterceptor.intercept(CglibAopProxy.java:703) at com.train.spring_mybatis_plus.service.UserServcieImp$$EnhancerBySpringCGLIB$$b8ea8e2d.selectUserOrder(<generated>) at com.train.spring_mybatis_plus.SpringMybatisPlusApplicationTests.testSelectOrderByUserId(SpringMybatisPlusApplicationTests.java:74) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:498) at org.junit.platform.commons.util.ReflectionUtils.invokeMethod(ReflectionUtils.java:725) at org.junit.jupiter.engine.execution.MethodInvocation.proceed(MethodInvocation.java:60) at org.junit.jupiter.engine.execution.InvocationInterceptorChain$ValidatingInvocation.proceed(InvocationInterceptorChain.java:131) at org.junit.jupiter.engine.extension.TimeoutExtension.intercept(TimeoutExtension.java:149) at org.junit.jupiter.engine.extension.TimeoutExtension.interceptTestableMethod(TimeoutExtension.java:140) at org.junit.jupiter.engine.extension.TimeoutExtension.interceptTestMethod(TimeoutExtension.java:84) at org.junit.jupiter.engine.execution.ExecutableInvoker$ReflectiveInterceptorCall.lambda$ofVoidMethod$0(ExecutableInvoker.java:115) at org.junit.jupiter.engine.execution.ExecutableInvoker.lambda$invoke$0(ExecutableInvoker.java:105) at org.junit.jupiter.engine.execution.InvocationInterceptorChain$InterceptedInvocation.proceed(InvocationInterceptorChain.java:106) at org.junit.jupiter.engine.execution.InvocationInterceptorChain.proceed(InvocationInterceptorChain.java:64) at org.junit.jupiter.engine.execution.InvocationInterceptorChain.chainAndInvoke(InvocationInterceptorChain.java:45) at org.junit.jupiter.engine.execution.InvocationInterceptorChain.invoke(InvocationInterceptorChain.java:37) at org.junit.jupiter.engine.execution.ExecutableInvoker.invoke(ExecutableInvoker.java:104) at org.junit.jupiter.engine.execution.ExecutableInvoker.invoke(ExecutableInvoker.java:98) at org.junit.jupiter.engine.descriptor.TestMethodTestDescriptor.lambda$invokeTestMethod$7(TestMethodTestDescriptor.java:214) at org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73) at org.junit.jupiter.engine.descriptor.TestMethodTestDescriptor.invokeTestMethod(TestMethodTestDescriptor.java:210) at org.junit.jupiter.engine.descriptor.TestMethodTestDescriptor.execute(TestMethodTestDescriptor.java:135) at org.junit.jupiter.engine.descriptor.TestMethodTestDescriptor.execute(TestMethodTestDescriptor.java:66) at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$6(NodeTestTask.java:151) at org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73) at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$8(NodeTestTask.java:141) at org.junit.platform.engine.support.hierarchical.Node.around(Node.java:137) at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$9(NodeTestTask.java:139) at org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73) at org.junit.platform.engine.support.hierarchical.NodeTestTask.executeRecursively(NodeTestTask.java:138) at org.junit.platform.engine.support.hierarchical.NodeTestTask.execute(NodeTestTask.java:95) at java.util.ArrayList.forEach(ArrayList.java:1257) at org.junit.platform.engine.support.hierarchical.SameThreadHierarchicalTestExecutorService.invokeAll(SameThreadHierarchicalTestExecutorService.java:41) at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$6(NodeTestTask.java:155) at org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73) at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$8(NodeTestTask.java:141) at org.junit.platform.engine.support.hierarchical.Node.around(Node.java:137) at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$9(NodeTestTask.java:139) at org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73) at org.junit.platform.engine.support.hierarchical.NodeTestTask.executeRecursively(NodeTestTask.java:138) at org.junit.platform.engine.support.hierarchical.NodeTestTask.execute(NodeTestTask.java:95) at java.util.ArrayList.forEach(ArrayList.java:1257) at org.junit.platform.engine.support.hierarchical.SameThreadHierarchicalTestExecutorService.invokeAll(SameThreadHierarchicalTestExecutorService.java:41) at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$6(NodeTestTask.java:155) at org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73) at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$8(NodeTestTask.java:141) at org.junit.platform.engine.support.hierarchical.Node.around(Node.java:137) at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$9(NodeTestTask.java:139) at org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73) at org.junit.platform.engine.support.hierarchical.NodeTestTask.executeRecursively(NodeTestTask.java:138) at org.junit.platform.engine.support.hierarchical.NodeTestTask.execute(NodeTestTask.java:95) at org.junit.platform.engine.support.hierarchical.SameThreadHierarchicalTestExecutorService.submit(SameThreadHierarchicalTestExecutorService.java:35) at org.junit.platform.engine.support.hierarchical.HierarchicalTestExecutor.execute(HierarchicalTestExecutor.java:57) at org.junit.platform.engine.support.hierarchical.HierarchicalTestEngine.execute(HierarchicalTestEngine.java:54) at org.junit.platform.launcher.core.EngineExecutionOrchestrator.execute(EngineExecutionOrchestrator.java:107) at org.junit.platform.launcher.core.EngineExecutionOrchestrator.execute(EngineExecutionOrchestrator.java:88) at org.junit.platform.launcher.core.EngineExecutionOrchestrator.lambda$execute$0(EngineExecutionOrchestrator.java:54) at org.junit.platform.launcher.core.EngineExecutionOrchestrator.withInterceptedStreams(EngineExecutionOrchestrator.java:67) at org.junit.platform.launcher.core.EngineExecutionOrchestrator.execute(EngineExecutionOrchestrator.java:52) at org.junit.platform.launcher.core.DefaultLauncher.execute(DefaultLauncher.java:114) at org.junit.platform.launcher.core.DefaultLauncher.execute(DefaultLauncher.java:86) at org.junit.platform.launcher.core.DefaultLauncherSession$DelegatingLauncher.execute(DefaultLauncherSession.java:86) at org.junit.platform.launcher.core.SessionPerRequestLauncher.execute(SessionPerRequestLauncher.java:53) at com.intellij.junit5.JUnit5IdeaTestRunner.startRunnerWithArgs(JUnit5IdeaTestRunner.java:57) at com.intellij.rt.junit.IdeaTestRunner$Repeater$1.execute(IdeaTestRunner.java:38) at com.intellij.rt.execution.junit.TestsRepeater.repeat(TestsRepeater.java:11) at com.intellij.rt.junit.IdeaTestRunner$Repeater.startRunnerWithArgs(IdeaTestRunner.java:35) at com.intellij.rt.junit.JUnitStarter.prepareStreamsAndStart(JUnitStarter.java:235) at com.intellij.rt.junit.JUnitStarter.main(JUnitStarter.java:54) Caused by: java.sql.SQLSyntaxErrorException: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'order WHERE (user_id IN ('3'))' at line 1 at com.mysql.cj.jdbc.exceptions.SQLError.createSQLException(SQLError.java:121) at com.mysql.cj.jdbc.exceptions.SQLExceptionsMapping.translateException(SQLExceptionsMapping.java:122) at com.mysql.cj.jdbc.ClientPreparedStatement.executeInternal(ClientPreparedStatement.java:916) at com.mysql.cj.jdbc.ClientPreparedStatement.execute(ClientPreparedStatement.java:354) at com.alibaba.druid.pool.DruidPooledPreparedStatement.execute(DruidPooledPreparedStatement.java:497) at org.apache.ibatis.executor.statement.PreparedStatementHandler.query(PreparedStatementHandler.java:65) at org.apache.ibatis.executor.statement.RoutingStatementHandler.query(RoutingStatementHandler.java:80) at org.apache.ibatis.executor.SimpleExecutor.doQuery(SimpleExecutor.java:65) at org.apache.ibatis.executor.BaseExecutor.queryFromDatabase(BaseExecutor.java:333) at org.apache.ibatis.executor.BaseExecutor.query(BaseExecutor.java:158) at org.apache.ibatis.executor.CachingExecutor.query(CachingExecutor.java:110) at org.apache.ibatis.executor.CachingExecutor.query(CachingExecutor.java:90) at org.apache.ibatis.session.defaults.DefaultSqlSession.selectList(DefaultSqlSession.java:154)

... 88 more

这种报错是什么造成的呢？如何破

回答：

SELECT user_id, user_address FROM `order` WHERE (user_id IN ('3'))


@Table(name = "`order`", charset = MySqlCharsetConstant.UTF8, engine = MySqlEngineConstant.InnoDB)
public class Order {
    // ...
}

回答：

Order类字段注解要用@TableField，不是 @Column

回答：

这种首先猜测是不是id参数为空，导致的？

然后，把SELECT user_id,user_address FROM order WHERE (user_id IN (?)) 这个语句单独用工具执行一下看看？记得把?替换成参数。

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mybatis-plus使用静态工具查询时出现语句错误报错？

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