Redis获取缓存异常:java.lang.ClassCastException: java.util.LinkedHashMap cannot be cast to XXX. 出现这种异常,我需要自定义ObjectMapper,设置一些参数,而不是直接使用Jackson2JsonRedisSerializer类中黙认的ObjectMapper,看源代码可以知道,Jackson2JsonRedisSerializer中的ObjectMapper是直接使用new ObjectMapper()创建的…
1.错误描写叙述 java.lang.ClassCastException: java.util.ArrayList cannot be cast to java.util.Map at service.impl.BillServiceImpl.exportBillExcel(BillServiceImpl.java:336) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeM…
报错信息: 严重: Servlet.service() for servlet [springmvc] in context with path [] threw exception [Request processing failed; nested exception is java.lang.ClassCastException: java.util.ArrayList cannot be cast to com.github.pagehelper.Page] with root caus…
问题背景:从前端传来的json字符串中取某些值,拼接成json格式入参调外部接口. 报如下错: java.lang.ClassCastException: java.util.HashMap cannot be cast to java.lang.String at com.taobao.hsf.proxy.bytecode.proxy31.registerCancellation(proxy31.java) at com.ohaotian.approval.controller.spzx.Te…
错误堆栈: java.lang.ClassCastException: java.lang.String cannot be cast to java.lang.Object[] at android.support.v4.util.SimpleArrayMap.allocArrays(SourceFile:183) at android.support.v4.util.SimpleArrayMap.put(SourceFile:437) 错误原因: 由于SimpleArrayMap 里面使用了…
1.错误描写叙述 java.lang.ClassCastException: java.lang.Integer cannot be cast to java.lang.String service.impl.ArrivalBillServiceImpl.exportBillExcel(BillServiceImpl.java:266) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.Na…
Spring boot启动时报 java.sql.SQLException: java.lang.ClassCastException: java.math.BigInteger cannot be cast to java.lang.Long错误: java.sql.SQLException: java.lang.ClassCastException: java.math.BigInteger cannot be cast to java.lang.Longat com.mysql.jdbc.…
今天在做 excel导出的时候,出现了一个问题"java.lang.ClassCastException: java.lang.String cannot be cast to com.domain.xxx": 公司用hibernate,查询时候可以用sql和hql,用什么一般看心情,第一次查询用的是select g.* from persion g ,site s where g.wz=s.dz(当然都是简写); 当get实体导出的 时候出现了" java.lang.Cla…
问题描述: MySQL更新到8.0.11之后连接数据库时会报出错误 Your login attempt was not successful, try again.Reason: Could not get JDBC Connection; nested exception is java.sql.SQLException: java.lang.ClassCastException: java.math.BigInteger cannot be cast to java.lang.Long 解…
问题:mysql中id存的是int(10),java代码中的id为long,转不过去 解决:mysql中的int要是需要转到java中的long,需要选择unsigned这个选项,即if(unsigned)convert to long 还有一个和当时mysql设置有关的,string date输入时为20180109,结果输出成了2018-01-09 00:00:00,是因为当时的date在mysql中的设置为DATE类型,自动切换类型了.…
今天在整合ssh三个框架时,有一个功能,是查询所有员工信息,且员工表和部门表是多对一的映射关系,代码能正常运行到查询得到一个List集合,但在页面展示的时候,就报异常了, java.lang.ClassCastException: com.ch.hibernate.Department_$$_javassist_0 cannot be cast to javassist.util.proxy.Proxy 问题应该出在实体类Department上,然后我参照网上的解释,将Department.hb…
报错信息 java.lang.ClassCastException: xut.bookshop.entity.User_$$_javassist_3 cannot be cast to javassist.util.proxy.Proxy org.hibernate.proxy.pojo.javassist.JavassistLazyInitializer.getProxy(JavassistLazyInitializer.java:147) org.hibernate.proxy.pojo.j…
一.错误信息 java.lang.ClassCastException: org.slf4j.impl.Log4jLoggerFactory cannot be cast to ch.qos.logback.classic.LoggerContextat ch.qos.logback.ext.spring.LogbackConfigurer.initLogging(LogbackConfigurer.java:72)at ch.qos.logback.ext.spring.web.WebLogb…