异常详细信息如下,报错的位置是User类的uId属性的setter方法,可是我很确定setter方法没问题。更加诡异的是如果我把uId的getter和setter方法全删掉,再写一遍,然后重新部署,竟然没问题了。然后等我再用一会,重启了几次后,这个异常 又会蹦出来。大神们有什么想法,快被这个问题整吐了。 org.apache.ibatis.reflection.ReflectionException: There is no setter for property named ""uId"" in ""class com.yuedao.car.entity.User"" at org.apache.ibatis.reflection.Reflector.getSetInvoker(Reflector.java:372) at org.apache.ibatis.reflection.MetaClass.getSetInvoker(MetaClass.java:174) at org.apache.ibatis.reflection.wrapper.BeanWrapper.setBeanProperty(BeanWrapper.java:167) at org.apache.ibatis.reflection.wrapper.BeanWrapper.set(BeanWrapper.java:57) at org.apache.ibatis.reflection.MetaObject.setValue(MetaObject.java:133) at org.apache.ibatis.executor.resultset.DefaultResultSetHandler.applyPropertyMappings(DefaultResultSetHandler.java:368) at org.apache.ibatis.executor.resultset.DefaultResultSetHandler.getRowValue(DefaultResultSetHandler.java:745) at org.apache.ibatis.executor.resultset.DefaultResultSetHandler.handleRowValuesForNestedResultMap(DefaultResultSetHandler.java:713) at org.apache.ibatis.executor.resultset.DefaultResultSetHandler.handleRowValues(DefaultResultSetHandler.java:264) at org.apache.ibatis.executor.resultset.DefaultResultSetHandler.handleResultSet(DefaultResultSetHandler.java:236) at org.apache.ibatis.executor.resultset.DefaultResultSetHandler.handleResultSets(DefaultResultSetHandler.java:150) at org.apache.ibatis.executor.statement.PreparedStatementHandler.query(PreparedStatementHandler.java:60) at org.apache.ibatis.executor.statement.RoutingStatementHandler.query(RoutingStatementHandler.java:73) at org.apache.ibatis.executor.ReuseExecutor.doQuery(ReuseExecutor.java:57) at org.apache.ibatis.executor.BaseExecutor.queryFromDatabase(BaseExecutor.java:267) at org.apache.ibatis.executor.BaseExecutor.query(BaseExecutor.java:137) at org.apache.ibatis.executor.BaseExecutor.query(BaseExecutor.java:120) at org.apache.ibatis.session.defaults.DefaultSqlSession.selectList(DefaultSqlSession.java:108) at org.apache.ibatis.session.defaults.DefaultSqlSession.selectList(DefaultSqlSession.java:102) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:597) at org.mybatis.spring.SqlSessionTemplate$SqlSessionInterceptor.invoke(SqlSessionTemplate.java:358) at $Proxy12.selectList(Unknown Source) at org.mybatis.spring.SqlSessionTemplate.selectList(SqlSessionTemplate.java:198) at org.apache.ibatis.binding.MapperMethod.executeForMany(MapperMethod.java:119) at org.apache.ibatis.binding.MapperMethod.execute(MapperMethod.java:63) at org.apache.ibatis.binding.MapperProxy.invoke(MapperProxy.java:52) at $Proxy58.selectUsersOfPage(Unknown Source) at com.yuedao.car.service.impl.UserServiceImpl.getUserList(UserServiceImpl.java:24) at com.yuedao.car.controller.UserController.list(UserController.java:42) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:597) at org.springframework.web.method.support.InvocableHandlerMethod.invoke(InvocableHandlerMethod.java:215) at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:132) at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:104) at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandleMethod(RequestMappingHandlerAdapter.java:749) at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:689) at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:83) at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:938) at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:870) at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:961) at org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:863) at javax.servlet.http.HttpServlet.service(HttpServlet.java:637) at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:837) at javax.servlet.http.HttpServlet.service(HttpServlet.java:717) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:88) at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:103) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109) at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:293) at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:861) at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:606) at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:489) at java.lang.Thread.run(Thread.java:619) |
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User类:
package com.yuedao.car.entity; public class User implements java.io.Serializable{ private static final long serialVersionUID = 1L; private int uId; private String pwd; private String mobileNo; private String userName; private int sex; private String registTime; private String email; private String photoPath;//照片路径 private int userType; private int status; private String shareNo;//分享码 private String token;//用户令牌 private Account account; public void setuId(int uId) { this.uId = uId; } public int getuId() { return uId; } public void setPwd(String pwd) { this.pwd = pwd; } public String getPwd() { return pwd; } public String getMobileNo() { return mobileNo; } public void setMobileNo(String mobileNo) { this.mobileNo = mobileNo; } public String getUserName() { return userName; } public void setUserName(String userName) { this.userName = userName; } public int getSex() { return sex; } public void setSex(int sex) { this.sex = sex; } public String getRegistTime() { return registTime; } public void setRegistTime(String registTime) { this.registTime = registTime; } public String getEmail() { return email; } public void setEmail(String email) { this.email = email; } public String getPhotoPath() { return photoPath; } public void setPhotoPath(String photoPath) { this.photoPath = photoPath; } public int getUserType() { return userType; } public void setUserType(int userType) { this.userType = userType; } public int getStatus() { return status; } public void setStatus(int status) { this.status = status; } public String getShareNo() { return shareNo; } public void setShareNo(String shareNo) { this.shareNo = shareNo; } public String getToken() { return token; } public void setToken(String token) { this.token = token; } public void setAccount(Account account) { this.account = account; } public Account getAccount() { return account; } } |
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10分 |
public void setUId(int uId) { this.uId = uId; } public int getUId() { return uId; } setUId和getUId的U都要大写。 |
10分 |
不然反射的时候不认识。
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10分 |
我用mybatis从来不用resultMap的 都用的原生态的sql,
sql里面as resulttype里面的属性就可以了 用resultMap太容易出错。 |
试了下,还是不行啊,它为什么是随机出现的? |
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10分 |
????public?void?setuId(int?uId)?{
????????this.uId?=?uId; ????} ????public?int?getuId()?{ ????????return?uId; 你 set/get 方法不是工具生成的吗。 |
也不行啊,我把uId改成id,这样大小写不会有问题了吧,结果出现下面的异常 org.apache.ibatis.reflection.ReflectionException: Could not set property ""id"" of ""class com.yuedao.car.entity.User"" with value ""1"" Cause: org.apache.ibatis.reflection.ReflectionException: There is no setter for property named ""id"" in ""class com.yuedao.car.entity.User"" org.apache.ibatis.reflection.wrapper.BeanWrapper.setBeanProperty(BeanWrapper.java:175) org.apache.ibatis.reflection.wrapper.BeanWrapper.set(BeanWrapper.java:57) org.apache.ibatis.reflection.MetaObject.setValue(MetaObject.java:133) org.apache.ibatis.executor.resultset.DefaultResultSetHandler.applyPropertyMappings(DefaultResultSetHandler.java:368) org.apache.ibatis.executor.resultset.DefaultResultSetHandler.getRowValue(DefaultResultSetHandler.java:745) org.apache.ibatis.executor.resultset.DefaultResultSetHandler.handleRowValuesForNestedResultMap(DefaultResultSetHandler.java:713) org.apache.ibatis.executor.resultset.DefaultResultSetHandler.handleRowValues(DefaultResultSetHandler.java:264) org.apache.ibatis.executor.resultset.DefaultResultSetHandler.handleResultSet(DefaultResultSetHandler.java:236) org.apache.ibatis.executor.resultset.DefaultResultSetHandler.handleResultSets(DefaultResultSetHandler.java:150) org.apache.ibatis.executor.statement.PreparedStatementHandler.query(PreparedStatementHandler.java:60) org.apache.ibatis.executor.statement.RoutingStatementHandler.query(RoutingStatementHandler.java:73) org.apache.ibatis.executor.ReuseExecutor.doQuery(ReuseExecutor.java:57) org.apache.ibatis.executor.BaseExecutor.queryFromDatabase(BaseExecutor.java:267) org.apache.ibatis.executor.BaseExecutor.query(BaseExecutor.java:137) org.apache.ibatis.executor.BaseExecutor.query(BaseExecutor.java:120) org.apache.ibatis.session.defaults.DefaultSqlSession.selectList(DefaultSqlSession.java:108) org.apache.ibatis.session.defaults.DefaultSqlSession.selectList(DefaultSqlSession.java:102) sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57) sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) java.lang.reflect.Method.invoke(Method.java:601) org.mybatis.spring.SqlSessionTemplate$SqlSessionInterceptor.invoke(SqlSessionTemplate.java:358) $Proxy12.selectList(Unknown Source) org.mybatis.spring.SqlSessionTemplate.selectList(SqlSessionTemplate.java:198) org.apache.ibatis.binding.MapperMethod.executeForMany(MapperMethod.java:119) org.apache.ibatis.binding.MapperMethod.execute(MapperMethod.java:63) org.apache.ibatis.binding.MapperProxy.invoke(MapperProxy.java:52) $Proxy58.selectUsersOfPage(Unknown Source) com.yuedao.car.service.impl.UserServiceImpl.getUserList(UserServiceImpl.java:24) com.yuedao.car.controller.UserController.list(UserController.java:42) sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57) sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) java.lang.reflect.Method.invoke(Method.java:601) org.springframework.web.method.support.InvocableHandlerMethod.invoke(InvocableHandlerMethod.java:215) org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:132) org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:104) org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandleMethod(RequestMappingHandlerAdapter.java:749) org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:689) org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:83) org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:938) org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:870) org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:961) org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:863) javax.servlet.http.HttpServlet.service(HttpServlet.java:637) org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:837) javax.servlet.http.HttpServlet.service(HttpServlet.java:717) org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:88) org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) |
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没有id 的 set/get 方法。
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你的set方法看着不对啊 应该是:setUId();getUId(); 方法中u应该是大写的吧
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package com.yuedao.car.entity; public class User{ private int id; private String pwd; private String mobileNo; private String userName; private int sex; private String registTime; private String email; private String photoPath;//照片路径 private int userType; private int status; private String shareNo;//分享码 private String token;//用户令牌 private Account account; public int getId() { return id; } public void setId(int id) { this.id = id; } public String getPwd() { return pwd; } public void setPwd(String pwd) { this.pwd = pwd; } public String getMobileNo() { return mobileNo; } public void setMobileNo(String mobileNo) { this.mobileNo = mobileNo; } public String getUserName() { return userName; } public void setUserName(String userName) { this.userName = userName; } public int getSex() { return sex; } public void setSex(int sex) { this.sex = sex; } public String getRegistTime() { return registTime; } public void setRegistTime(String registTime) { this.registTime = registTime; } public String getEmail() { return email; } public void setEmail(String email) { this.email = email; } public String getPhotoPath() { return photoPath; } public void setPhotoPath(String photoPath) { this.photoPath = photoPath; } public int getUserType() { return userType; } public void setUserType(int userType) { this.userType = userType; } public int getStatus() { return status; } public void setStatus(int status) { this.status = status; } public String getShareNo() { return shareNo; } public void setShareNo(String shareNo) { this.shareNo = shareNo; } public String getToken() { return token; } public void setToken(String token) { this.token = token; } public Account getAccount() { return account; } public void setAccount(Account account) { this.account = account; } } 现在改成这种了,大小写没问题了,但是还是出这个错误。最有可能的就是user和driver表做了关联,但user和driver表的主键字段都是u_id,而我的select语句写的是select *,这样查出的结果中有两个u_id,不知道赋值给哪个了 |
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这个算是很简单的了,就是说实体类中,有一个字段,没有get/set方法。
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要真这么简单就好了,你看看上面我回答别人的 |
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resultMap用的很少,你看看type=”User”找得到不,还有和数据库的字段的映射关系正确不
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type、resultMap 好好审查一下,应该是这两个中的一个有错误
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