id字段数据库数据类型是int,返回Map接收查询结果,接收时使用了List<Map<String,String>>接收结果集; select * from users 然后一直报错: java.lang.ClassCastException: java.lang.Integer cannot be cast to java.lang.String at me.gacl.util.MyBatisUtil.showInfo(MyBatisUtil.java:46) at me.gacl.test.Test...
A.java:Map<String,String> stringMap =selectAllSongInfoMap();for(Map.Entry<String,String> stringStringEntry : stringMap.entrySet()) {Stringvalue = stringStringEntry.getValue();//233} 行233报错了: java.lang.ClassCastException:java.lang.Integercannotbecast tojava.lang.String 乍一看日志报错的行号...
Mybatis的失误填坑-java.lang.Integercannotbecasttoj。。。Mybatis的CRUD⼩Demo 为⽅便查看每次的增删改结果，封装了查询，⽤来显⽰数据库的记录；public static void showInfo(){ SqlSession session = getSqlSesion();String sql = "me.gacl.mapping.userMapper.getUsers";List<Map<String,String>> users...
【java异常】java.lang.Integer cannot be cast to java.lang.String 2019-12-20 17:20 −类型错误啊... 乡屯米卒 0 1480 springmvc 启动报 java.lang.NoSuchMethodError: org.springframework.core.GenericTypeResolver.resolveTypeArguments(Ljava/lang/Class;Ljava/lang/Class;)[Ljava/lang/Class; ...
Resolved [org.springframework.http.converter.HttpMessageNotWritableException: Could not write JSON: java.lang.Long cannot be cast to java.lang.Integer; nested exception is com.fasterxml.jackson.databind.JsonMappingException: java.lang.Long cannot be cast to java.lang.Integer (through reference chain:...
难道不是因为这吗 java.lang.Integercannotbecasttojava.lang.String试下 Useru=user...
(mybatisplus-plus1.5.1与mybatisplus3.4.3不兼容,mybatisplus3.4.3自身有bug无法使用,报sun.reflect.generics.reflectiveObjects.TypeVariableImpl cannot be cast to java.lang.Class) (mybatisplus-plus1.5.1与mybatisplus3.4.3.2不兼容,报org.apache.ibatis.binding.BindingException: Invalid bound statement (not...
Map<Integer, Object> maps = mapper.getMapsByID(6); // 遍历map,注意此时map的结构 Map<id=Map,id=Map...> Set<Integer> keySet = maps.keySet(); // java.lang.Integer cannot be cast to java.lang.String // [16, 6, 9, 10, 11, 12, 13, 14, 15] ...
报错信息:java.lang.ClassCastException: java.lang.Integer cannot be cast to java.lang.String 解决方案:这个错误通常是因为在使用${}占位符时,传递的参数类型与预期不符。请确保传递的参数类型与占位符的值类型相匹配。 报错信息:org.apache.ibatis.binding.BindingException: Invalid bound statement (not found)...
报错信息:java.lang.ClassCastException: java.lang.Integer cannot be cast to java.lang.String 解决方案:这个错误通常是因为在使用${}占位符时,传递的参数类型与预期不符。请确保传递的参数类型与占位符的值类型相匹配。 报错信息:org.apache.ibatis.binding.BindingException: Invalid bound statement (not found)...