Java Mybatis动态sql包含字符“@”

我试图通过SQL获取排名列表中的seq，它在MySQL中工作，但是当我复制到mybatis java文件中时，它出现了一些类似这样的异常

这是我的java文件

@选择选择*+ 从中选择一个*，@rank:=@rank+1作为序号+ 从选择用户\u id，将\u值列为rankValue+ 从t_stat_rank_day开始+ 其中rank_type={rankTypeCode}+ 和rank_day={date}+ 按秩排序\u值desc，将\u时间限制{maxSeq}更新为+ 选择@rank:={startSeq}rb+ 其中user_id={userId} 斯塔特朗克seq@ParamrankTypeCode整数rankTypeCode、@Paramdate LocalDate、@ParamuserId Long userId、@ParammaxSeq Integer maxSeq、@ParamstartSeq Integer startSeq； mybatis抛出一个异常，如下所示

line 1:33 no viable alternative at input '(@rank:'
line 1:33 mismatched input ':' expecting {')', ',', INTO, UNION, FROM, WHERE, FOR, ORDER, GROUP, HAVING, LIMIT, WINDOW, LOCK}
### Error querying database.  Cause: java.lang.IndexOutOfBoundsException: Index: 0
### The error may exist in com/hoho/service/modules/stat/dao/StatRankDayMapper.java (best guess)
### The error may involve com.hoho.service.modules.stat.dao.StatRankDayMapper.seq-Inline
### The error occurred while setting parameters
### SQL: select * from (select a.*, (@rank:=@rank + 1) As seq       from (select user_id, rank_value as rankValue             from t_stat_rank_day             where rank_type = ?             and rank_day = ?             order by rank_value desc, update_time  limit ?) as a,            (SELECT @rank:=?) r) b where user_id = ?
### Cause: java.lang.IndexOutOfBoundsException: Index: 0
    at org.apache.ibatis.exceptions.ExceptionFactory.wrapException(ExceptionFactory.java:30)
    at org.apache.ibatis.session.defaults.DefaultSqlSession.selectList(DefaultSqlSession.java:150)
    at org.apache.ibatis.session.defaults.DefaultSqlSession.selectList(DefaultSqlSession.java:141)
    at org.apache.ibatis.session.defaults.DefaultSqlSession.selectOne(DefaultSqlSession.java:77)
    at jdk.internal.reflect.GeneratedMethodAccessor303.invoke(Unknown Source)
    at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.base/java.lang.reflect.Method.invoke(Method.java:567)
    at org.mybatis.spring.SqlSessionTemplate$SqlSessionInterceptor.invoke(SqlSessionTemplate.java:433)
    ... 119 common frames omitted
Caused by: java.lang.IndexOutOfBoundsException: Index: 0
    at java.base/java.util.Collections$EmptyList.get(Collections.java:4483)
    at org.apache.shardingsphere.sql.parser.mysql.visitor.MySQLVisitor.visitExpr(MySQLVisitor.java:264)
    at org.apache.shardingsphere.sql.parser.mysql.visitor.MySQLVisitor.visitExpr(MySQLVisitor.java:121)
    at org.apache.shardingsphere.sql.parser.autogen.MySQLStatementParser$ExprContext.accept(MySQLStatementParser.java:11241)
    at org.antlr.v4.runtime.tree.AbstractParseTreeVisitor.visit(AbstractParseTreeVisitor.java:18)
    at org.apache.shardingsphere.sql.parser.mysql.visitor.impl.MySQLDMLVisitor.createProjection(MySQLDMLVisitor.java:441)
    at org.apache.shardingsphere.sql.parser.mysql.visitor.impl.MySQLDMLVisitor.visitProjection(MySQLDMLVisitor.java:429)
    at org.apache.shardingsphere.sql.parser.mysql.visitor.impl.MySQLDMLVisitor.visitProjection(MySQLDMLVisitor.java:127)
    at org.apache.shardingsphere.sql.parser.autogen.MySQLStatementParser$ProjectionContext.accept(MySQLStatementParser.java:5370)
    at org.antlr.v4.runtime.tree.AbstractParseTreeVisitor.visit(AbstractParseTreeVisitor.java:18)
    at org.apache.shardingsphere.sql.parser.mysql.visitor.impl.MySQLDMLVisitor.visitProjections(MySQLDMLVisitor.java:405)
    at org.apache.shardingsphere.sql.parser.mysql.visitor.impl.MySQLDMLVisitor.visitProjections(MySQLDMLVisitor.java:127)
    at org.apache.shardingsphere.sql.parser.autogen.MySQLStatementParser$ProjectionsContext.accept(MySQLStatementParser.java:4865)
    at org.antlr.v4.runtime.tree.AbstractParseTreeVisitor.visit(AbstractParseTreeVisitor.java:18)
    at org.apache.shardingsphere.sql.parser.mysql.visitor.impl.MySQLDMLVisitor.visitSelectClause(MySQLDMLVisitor.java:324)
    at org.apache.shardingsphere.sql.parser.mysql.visitor.impl.MySQLDMLVisitor.visitSelectClause(MySQLDMLVisitor.java:127)
    at org.apache.shardingsphere.sql.parser.autogen.MySQLStatementParser$SelectClauseContext.accept(MySQLStatementParser.java:4551)
    at org.antlr.v4.runtime.tree.AbstractParseTreeVisitor.visit(AbstractParseTreeVisitor.java:18)
    at org.apache.shardingsphere.sql.parser.mysql.visitor.impl.MySQLDMLVisitor.visitUnionClause(MySQLDMLVisitor.java:317)
    at org.apache.shardingsphere.sql.parser.mysql.visitor.impl.MySQLDMLVisitor.visitUnionClause(MySQLDMLVisitor.java:127)
    at org.apache.shardingsphere.sql.parser.autogen.MySQLStatementParser$UnionClauseContext.accept(MySQLStatementParser.java:4446)
    at org.antlr.v4.runtime.tree.AbstractParseTreeVisitor.visit(AbstractParseTreeVisitor.java:18)
    at org.apache.shardingsphere.sql.parser.mysql.visitor.impl.MySQLDMLVisitor.visitSubquery(MySQLDMLVisitor.java:630)
    at org.apache.shardingsphere.sql.parser.mysql.visitor.impl.MySQLDMLVisitor.visitSubquery(MySQLDMLVisitor.java:127)
    at org.apache.shardingsphere.sql.parser.autogen.MySQLStatementParser$SubqueryContext.accept(MySQLStatementParser.java:7437)
    at org.antlr.v4.runtime.tree.AbstractParseTreeVisitor.visit(AbstractParseTreeVisitor.java:18)
    at org.apache.shardingsphere.sql.parser.mysql.visitor.impl.MySQLDMLVisitor.visitTableFactor(MySQLDMLVisitor.java:514)
    at org.apache.shardingsphere.sql.parser.mysql.visitor.impl.MySQLDMLVisitor.visitTableFactor(MySQLDMLVisitor.java:127)
    at org.apache.shardingsphere.sql.parser.autogen.MySQLStatementParser$TableFactorContext.accept(MySQLStatementParser.java:6349)
    at org.antlr.v4.runtime.tree.AbstractParseTreeVisitor.visit(AbstractParseTreeVisitor.java:18)
    at org.apache.shardingsphere.sql.parser.mysql.visitor.impl.MySQLDMLVisitor.visitTableReference(MySQLDMLVisitor.java:498)
    at org.apache.shardingsphere.sql.parser.mysql.visitor.impl.MySQLDMLVisitor.visitTableReference(MySQLDMLVisitor.java:127)
    at org.apache.shardingsphere.sql.parser.autogen.MySQLStatementParser$TableReferenceContext.accept(MySQLStatementParser.java:6277)
    at org.antlr.v4.runtime.tree.AbstractParseTreeVisitor.visit(AbstractParseTreeVisitor.java:18)
    at org.apache.shardingsphere.sql.parser.mysql.visitor.impl.MySQLDMLVisitor.visitEscapedTableReference(MySQLDMLVisitor.java:491)
    at org.apache.shardingsphere.sql.parser.mysql.visitor.impl.MySQLDMLVisitor.visitEscapedTableReference(MySQLDMLVisitor.java:127)
    at org.apache.shardingsphere.sql.parser.autogen.MySQLStatementParser$EscapedTableReferenceContext.accept(MySQLStatementParser.java:5947)
    at org.antlr.v4.runtime.tree.AbstractParseTreeVisitor.visit(AbstractParseTreeVisitor.java:18)
    at org.apache.shardingsphere.sql.parser.mysql.visitor.impl.MySQLDMLVisitor.visitTableReferences(MySQLDMLVisitor.java:484)
    at org.apache.shardingsphere.sql.parser.mysql.visitor.impl.MySQLDMLVisitor.visitTableReferences(MySQLDMLVisitor.java:127)
    at org.apache.shardingsphere.sql.parser.autogen.MySQLStatementParser$TableReferencesContext.accept(MySQLStatementParser.java:5891)
    at org.antlr.v4.runtime.tree.AbstractParseTreeVisitor.visit(AbstractParseTreeVisitor.java:18)
    at org.apache.shardingsphere.sql.parser.mysql.visitor.impl.MySQLDMLVisitor.visitFromClause(MySQLDMLVisitor.java:476)
    at org.apache.shardingsphere.sql.parser.mysql.visitor.impl.MySQLDMLVisitor.visitFromClause(MySQLDMLVisitor.java:127)
    at org.apache.shardingsphere.sql.parser.autogen.MySQLStatementParser$FromClauseContext.accept(MySQLStatementParser.java:5846)
    at org.antlr.v4.runtime.tree.AbstractParseTreeVisitor.visit(AbstractParseTreeVisitor.java:18)
    at org.apache.shardingsphere.sql.parser.mysql.visitor.impl.MySQLDMLVisitor.visitSelectClause(MySQLDMLVisitor.java:329)
    at org.apache.shardingsphere.sql.parser.mysql.visitor.impl.MySQLDMLVisitor.visitSelectClause(MySQLDMLVisitor.java:127)
    at org.apache.shardingsphere.sql.parser.autogen.MySQLStatementParser$SelectClauseContext.accept(MySQLStatementParser.java:4551)
    at org.antlr.v4.runtime.tree.AbstractParseTreeVisitor.visit(AbstractParseTreeVisitor.java:18)
    at org.apache.shardingsphere.sql.parser.mysql.visitor.impl.MySQLDMLVisitor.visitUnionClause(MySQLDMLVisitor.java:317)
    at org.apache.shardingsphere.sql.parser.mysql.visitor.impl.MySQLDMLVisitor.visitUnionClause(MySQLDMLVisitor.java:127)
    at org.apache.shardingsphere.sql.parser.autogen.MySQLStatementParser$UnionClauseContext.accept(MySQLStatementParser.java:4446)
    at org.antlr.v4.runtime.tree.AbstractParseTreeVisitor.visit(AbstractParseTreeVisitor.java:18)
    at org.apache.shardingsphere.sql.parser.mysql.visitor.impl.MySQLDMLVisitor.visitSelect(MySQLDMLVisitor.java:309)
    at org.apache.shardingsphere.sql.parser.mysql.visitor.impl.MySQLDMLVisitor.visitSelect(MySQLDMLVisitor.java:127)
    at org.apache.shardingsphere.sql.parser.autogen.MySQLStatementParser$SelectContext.accept(MySQLStatementParser.java:3098)
    at org.antlr.v4.runtime.tree.AbstractParseTreeVisitor.visit(AbstractParseTreeVisitor.java:18)
    at org.apache.shardingsphere.sql.parser.SQLParserEngine.parse0(SQLParserEngine.java:80)
    at org.apache.shardingsphere.sql.parser.SQLParserEngine.parse(SQLParserEngine.java:61)
    at org.apache.shardingsphere.underlying.route.DataNodeRouter.createRouteContext(DataNodeRouter.java:97)
    at org.apache.shardingsphere.underlying.route.DataNodeRouter.executeRoute(DataNodeRouter.java:89)
    at org.apache.shardingsphere.underlying.route.DataNodeRouter.route(DataNodeRouter.java:76)
    at org.apache.shardingsphere.underlying.pluggble.prepare.PreparedQueryPrepareEngine.route(PreparedQueryPrepareEngine.java:54)
    at org.apache.shardingsphere.underlying.pluggble.prepare.BasePrepareEngine.executeRoute(BasePrepareEngine.java:96)
    at org.apache.shardingsphere.underlying.pluggble.prepare.BasePrepareEngine.prepare(BasePrepareEngine.java:83)
    at org.apache.shardingsphere.shardingjdbc.jdbc.core.statement.ShardingPreparedStatement.prepare(ShardingPreparedStatement.java:183)
    at org.apache.shardingsphere.shardingjdbc.jdbc.core.statement.ShardingPreparedStatement.execute(ShardingPreparedStatement.java:143)
    at org.apache.ibatis.executor.statement.PreparedStatementHandler.query(PreparedStatementHandler.java:64)
    at org.apache.ibatis.executor.statement.RoutingStatementHandler.query(RoutingStatementHandler.java:79)
    at jdk.internal.reflect.GeneratedMethodAccessor261.invoke(Unknown Source)
    at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.base/java.lang.reflect.Method.invoke(Method.java:567)
    at org.apache.ibatis.plugin.Plugin.invoke(Plugin.java:63)
    at com.sun.proxy.$Proxy305.query(Unknown Source)
    at org.apache.ibatis.executor.SimpleExecutor.doQuery(SimpleExecutor.java:63)
    at org.apache.ibatis.executor.BaseExecutor.queryFromDatabase(BaseExecutor.java:324)
    at org.apache.ibatis.executor.BaseExecutor.query(BaseExecutor.java:156)
    at org.apache.ibatis.executor.CachingExecutor.query(CachingExecutor.java:109)
    at org.apache.ibatis.executor.CachingExecutor.query(CachingExecutor.java:83)
    at org.apache.ibatis.session.defaults.DefaultSqlSession.selectList(DefaultSqlSession.java:148)
    ... 125 common frames omitted

sql

选择@rank:={startSeq}r 因为它漏掉了“from”这样的关键词。 这是sql在mybatis angel不完整的地方

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我可以写些什么来避免这种情况？

这将是一个ShardingSphere问题。我想你是对的。那么，请原谅，除了行号和错误的方法来获得mybatis中的排名外，我还能做什么？没有mybatis的特定解决方案。我对ShardingSphere一无所知，但对于MySQL 8.x来说，这可能是在SQL中实现它的最好方法。有关备选方案，请参见此问题的答案。或者，您可以在获得查询结果后在Java代码中分配秩号。