我的应用程序管理面板写在es6上，我只知道如何开始gulp来构建管理员。有mongoDB，其中设置了admin admin用户和密码。我在2台笔记本电脑上输入管理面板没有问题，但在第三台笔记本电脑上也是最新的分支机构我得到了这个例外，我无法登录管理面板。
Caused by: org.springframework.dao.IncorrectResultSizeDataAccessException: Query { "$java" : Query: { "email" : "admin" }, Fields: { }, Sort: { } } returned non unique result.
at org.springframework.data.mongodb.core.ExecutableFindOperationSupport$ExecutableFindSupport.oneValue(ExecutableFindOperationSupport.java:145) ~[spring-data-mongodb-2.0.2.RELEASE.jar:2.0.2.RELEASE]
at org.springframework.data.mongodb.repository.query.AbstractMongoQuery.lambda$getExecution$4(AbstractMongoQuery.java:122) ~[spring-data-mongodb-2.0.2.RELEASE.jar:2.0.2.RELEASE]
at org.springframework.data.mongodb.repository.query.AbstractMongoQuery.execute(AbstractMongoQuery.java:98) ~[spring-data-mongodb-2.0.2.RELEASE.jar:2.0.2.RELEASE]
at org.springframework.data.repository.core.support.RepositoryFactorySupport$QueryExecutorMethodInterceptor.doInvoke(RepositoryFactorySupport.java:597) ~[spring-data-commons-2.0.2.RELEASE.jar:2.0.2.RELEASE]
at org.springframework.data.repository.core.support.RepositoryFactorySupport$QueryExecutorMethodInterceptor.invoke(RepositoryFactorySupport.java:580) ~[spring-data-commons-2.0.2.RELEASE.jar:2.0.2.RELEASE]
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:185) ~[spring-aop-5.0.2.RELEASE.jar:5.0.2.RELEASE]
at org.springframework.data.projection.DefaultMethodInvokingMethodInterceptor.invoke(DefaultMethodInvokingMethodInterceptor.java:59) ~[spring-data-commons-2.0.2.RELEASE.jar:2.0.2.RELEASE]
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:185) ~[spring-aop-5.0.2.RELEASE.jar:5.0.2.RELEASE]
at org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:92) ~[spring-aop-5.0.2.RELEASE.jar:5.0.2.RELEASE]
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:185) ~[spring-aop-5.0.2.RELEASE.jar:5.0.2.RELEASE]
at org.springframework.data.repository.core.support.SurroundingTransactionDetectorMethodInterceptor.invoke(SurroundingTransactionDetectorMethodInterceptor.java:61) ~[spring-data-commons-2.0.2.RELEASE.jar:2.0.2.RELEASE]
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:185) ~[spring-aop-5.0.2.RELEASE.jar:5.0.2.RELEASE]
at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:212) ~[spring-aop-5.0.2.RELEASE.jar:5.0.2.RELEASE]
at com.sun.proxy.$Proxy79.findOneByEmail(Unknown Source) ~[na:na]
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:1.8.0_171]
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) ~[na:1.8.0_171]
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) ~[na:1.8.0_171]
at java.lang.reflect.Method.invoke(Unknown Source) ~[na:1.8.0_171]
at org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:338) ~[spring-aop-5.0.2.RELEASE.jar:5.0.2.RELEASE]
at org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:197) ~[spring-aop-5.0.2.RELEASE.jar:5.0.2.RELEASE]
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:163) ~[spring-aop-5.0.2.RELEASE.jar:5.0.2.RELEASE]
at org.springframework.dao.support.PersistenceExceptionTranslationInterceptor.invoke(PersistenceExceptionTranslationInterceptor.java:139) ~[spring-tx-5.0.2.RELEASE.jar:5.0.2.RELEASE]
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:185) ~[spring-aop-5.0.2.RELEASE.jar:5.0.2.RELEASE]
at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:212) ~[spring-aop-5.0.2.RELEASE.jar:5.0.2.RELEASE]
at com.sun.proxy.$Proxy79.findOneByEmail(Unknown Source) ~[na:na]
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:1.8.0_171]
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) ~[na:1.8.0_171]
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) ~[na:1.8.0_171]
at java.lang.reflect.Method.invoke(Unknown Source) ~[na:1.8.0_171]
at org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:338) ~[spring-aop-5.0.2.RELEASE.jar:5.0.2.RELEASE]
at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:206) ~[spring-aop-5.0.2.RELEASE.jar:5.0.2.RELEASE]
at com.sun.proxy.$Proxy88.findOneByEmail(Unknown Source) ~[na:na]
at com.discernmd.app.service.SecurityService.loadUserByUsername(SecurityService.java:43) ~[classes/:na]
at org.springframework.security.authentication.dao.DaoAuthenticationProvider.retrieveUser(DaoAuthenticationProvider.java:106) ~[spring-security-core-5.0.0.RELEASE.jar:5.0.0.RELEASE]
... 53 common frames omitted
我有mongo正在运行并且需要构建es6一切都是一样但不会让我登录管理面板。我也确实有一个错误，我不确定我是否到了其他地方我正在使用该应用程序
error 'Config' is assigned a value but never used no-unused-vars
答案 0 :(得分：2)
IncorrectResultSizeDataAccessException表示对数据库有一些查询应该返回1行/对象，但在您的情况下，查询返回的行/对象超过1行。
异常消息显示导致错误的特定查询：
Query { "$java" : Query: { "email" : "admin" }, Fields: { }, Sort: { } }
您应该在代码中找到该查询，并确保在给定您提供的参数的情况下，查询只返回1个对象。
答案 1 :(得分：1)
我们必须使用findFirst而不是findOne来解决此问题。
使用给定方法时，我遇到了同样的问题
Optional<Person> findOneByStateAndZip(String state, String zip);
但是使用给定的方法时我看不到任何问题。
Optional<Person> findFirstByStateAndZip(String state, String zip);