java.lang.NoSuchFieldException--java反射异常

今天用反射给对象赋值，有一个属性始终报错，主要错误信息如下：

遇到一个java.lang.NoSuchFieldException：错误

java.lang.NoSuchFieldException: topic_path

at java.lang.Class.getDeclaredField(Unknown Source)
at com.thinkgem.jeesite.modules.common_jeesite.entity.PageUtil.getResults(PageUtil.java:219)
at com.thinkgem.jeesite.modules.exam.service.ExamManageServiceImpl.findAllExamEntity(ExamManageServiceImpl.java:70)
at com.thinkgem.jeesite.modules.exam.service.ExamManageServiceImpl$$FastClassBySpringCGLIB$$528d1bd1.invoke(<generated>)
at org.springframework.cglib.proxy.MethodProxy.invoke(MethodProxy.java:204)
at org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.invokeJoinpoint(CglibAopProxy.java:718)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:157)
at org.springframework.transaction.interceptor.TransactionInterceptor$1.proceedWithInvocation(TransactionInterceptor.java:99)
at org.springframework.transaction.interceptor.TransactionAspectSupport.invokeWithinTransaction(TransactionAspectSupport.java:281)
at org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:96)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179)
错误原因：

实体类：属性和数据库字段名不一致

实体类

private Integer exam_id;//题库id(主键自增)
private String exam_name;//题库名字
private Integer type_id;//类型id
private String exam_desc;//题库描述
private String exam_path;//考题路径
private String create_time;//创建时间

数据库



解决办法：

1、修改对象属性

2、给查询出的字段加别名和实体类属性名一致