标签:erp nbsp 命名 ict argument conf sql 首页 使用
首页 > 精品文库 > mybatis报错Mapped Statements collection does not contain value for com.inter.IOper
2015-04-09 浏览(52)
[摘要:正在顺序挪用IOperation接心中的getAllItems方式时,涌现了以下毛病: Exception in thread main org.apache.ibatis.binding.BindingException: Invalid bound statement (not found): com.inter.IOperation.getAllItems at org.apache.ib]
在程序调用IOperation接口中的getAllItems方法时,出现了以下错误:
Exception in thread "main" org.apache.ibatis.binding.BindingException: Invalid bound statement (not found): com.inter.IOperation.getAllItems
at org.apache.ibatis.binding.MapperMethod$SqlCommand.<init>(MapperMethod.java:178)
at org.apache.ibatis.binding.MapperMethod.<init>(MapperMethod.java:38)
at org.apache.ibatis.binding.MapperProxy.cachedMapperMethod(MapperProxy.java:49)
at org.apache.ibatis.binding.MapperProxy.invoke(MapperProxy.java:42)
at com.sun.proxy.$Proxy0.getAllItems(Unknown Source)
at analysis.ReviewsMining.processProcessedReviews(ReviewsMining.java:88)
at analysis.ReviewsMining.main(ReviewsMining.java:152)
Caused by: java.lang.IllegalArgumentException: Mapped Statements collection does not contain value for com.inter.IOperation.getAllItems
at org.apache.ibatis.session.Configuration$StrictMap.get(Configuration.java:768)
at org.apache.ibatis.session.Configuration.getMappedStatement(Configuration.java:603)
at org.apache.ibatis.session.Configuration.getMappedStatement(Configuration.java:596)
at org.apache.ibatis.binding.MapperMethod$SqlCommand.<init>(MapperMethod.java:176)
出现这种错误有几种原因:
1、命名空间没写对,如果使用mapper,则<mapper namespace="com.inter.IOperation">(IOperation是个接口,里面含有方法getAllItems)
2、getAllItems方法在item.xml中没有,然后执行getAllItems方法会报错
3、getAllItems方法的返回值是List<Item>,而select元素没有正确配置ResultMap,或者只配置了ResultType
4、在与数据库连接相关的配置文件Configuration.xml中,在<mappers>中漏了<mapper resource="com/items/Item.xml"/>(这也是我这次错误的原因)
mybatis报错Mapped Statements collection does not contain value for com.inter.IOper
标签:erp nbsp 命名 ict argument conf sql 首页 使用
原文地址:http://www.cnblogs.com/Baronboy/p/6074579.html