一.redirect为什么会丢数据? when a handler method completes, any model data specified in the method is copied into the request as request attributes, and the request is forwarded to the view for rendering. Because it’s the same request that’s handled by both
一.占位符解析器源码 1.占位符解析器实现的目标 通过解析字符串中指定前后缀中的字符,并完成相应的功能. 在mybtias中的应用,主要是为了解析Mapper的xml中的sql语句#{}中的内容,识别当前sql语句的一些特性. 2.占位符解析器的通用算法类 (1)org.apache.ibatis.parsing.GenericTokenParser public class GenericTokenParser { private final String openToken; private
先贴出异常 Struts has detected an unhandled exception: Messages: Position beyond number of declared ordinal parameters. Remember that ordinal parameters are 1-based! Position: 1 File: org/hibernate/engine/query/spi/ParameterMetadata.java Stacktraces org.h
hibernate 4.1之后对于HQL中查询参数的占位符做了改进,如果仍然用老式的占位符会有类似如下的告警信息 [main] WARN [org.hibernate.hql.internal.ast.HqlSqlWalker] – [DEPRECATION] Encountered positional parameter near line 1, column 95. Positional parameter are considered deprecated; use named para