如何使用 CrudRepository Spring Data 更新 mongodb 中的记录

【问题标题】：How to update a record in a mongodb using CrudRepository Spring Data如何使用 CrudRepository Spring Data 更新 mongodb 中的记录
【发布时间】：2017-09-26 14:13:38
【问题描述】：

所以我设法将一个非常简单的文档保存到我的User 集合中。我想更新其中的某个字段，但不确定如何更新。我的存储库是从 CrudRepo 扩展的，如下所示：

public interface UserMongoRepository extends CrudRepository<User,String> {}

并且我在要访问数据库的任何类中使用@Autowire UserMongoRespository userRepo 注释。

我有我想要更新的用户的 ID，但我不知道如何使用我的 repo 执行此操作，因为它不包含更新记录的方法。

UPDATE = 当我使用 save 方法时，出现以下错误：

{  
   "serverUsed":"localhost:27017",
   "ok":1,
   "n":0,
   "err":"E11000 duplicate key error collection: car_dealer.user index: _id_ dup key: { : 0 }",
   "code":11000
}; nested exception is com.mongodb.MongoException$DuplicateKey:{  
   "serverUsed":"localhost:27017",
   "ok":1,
   "n":0,
   "err":"E11000 duplicate key error collection: car_dealer.user index: _id_ dup key: { : 0 }",
   "code":11000
}

当我调试和查看用户的 ID 时，即使我将 id 字段注释为 @Id，mongo 似乎也不会生成随机 ID。相反，它只是给它的 ID 为零（目前我的数据库中只有一条记录）。

这是我的用户类：

@Document(collection = "user")
public class User {

    @Id
    private int id;

    private String username;
    private String password;
    private String secret;

    public int getNumberOfAttempts() {
        return numberOfAttempts;
    }

    public void setNumberOfAttempts(int numberOfAttempts) {
        this.numberOfAttempts = numberOfAttempts;
    }

    private int numberOfAttempts;

    public int getId() {
        return id;
    }

    public void setId(int id) {
        this.id = id;
    }

    public String getUsername() {
        return username;
    }

    public void setUsername(String username) {
        this.username = username;
    }

    public String getPassword() {
        return password;
    }

    public void setPassword(String password) {
        this.password = password;
    }

    public String getSecret() {
        return secret;
    }

    public void setSecret(String secret) {
        this.secret = secret;
    }

}

堆栈跟踪：

com.mongodb.MongoException$DuplicateKey: { "serverUsed" : "localhost:27017" , "ok" : 1 , "n" : 0 , "err" : "E11000 duplicate key error collection: car_dealer.user index: _id_ dup key: { : 0 }" , "code" : 11000}
    at com.mongodb.CommandResult.getWriteException(CommandResult.java:88) ~[mongo-java-driver-2.13.3.jar:na]
    at com.mongodb.CommandResult.getException(CommandResult.java:79) ~[mongo-java-driver-2.13.3.jar:na]
    at com.mongodb.DBCollectionImpl.translateBulkWriteException(DBCollectionImpl.java:316) ~[mongo-java-driver-2.13.3.jar:na]
    at com.mongodb.DBCollectionImpl.insert(DBCollectionImpl.java:191) ~[mongo-java-driver-2.13.3.jar:na]
    at com.mongodb.DBCollectionImpl.insert(DBCollectionImpl.java:167) ~[mongo-java-driver-2.13.3.jar:na]
    at com.mongodb.DBCollection.insert(DBCollection.java:93) ~[mongo-java-driver-2.13.3.jar:na]
    at com.mongodb.DBCollection.insert(DBCollection.java:78) ~[mongo-java-driver-2.13.3.jar:na]
    at com.mongodb.DBCollection.insert(DBCollection.java:120) ~[mongo-java-driver-2.13.3.jar:na]
    at org.springframework.data.mongodb.core.MongoTemplate$9.doInCollection(MongoTemplate.java:1002) ~[spring-data-mongodb-1.8.4.RELEASE.jar:na]
    at org.springframework.data.mongodb.core.MongoTemplate.execute(MongoTemplate.java:462) ~[spring-data-mongodb-1.8.4.RELEASE.jar:na]
    at org.springframework.data.mongodb.core.MongoTemplate.insertDBObject(MongoTemplate.java:997) ~[spring-data-mongodb-1.8.4.RELEASE.jar:na]
    at org.springframework.data.mongodb.core.MongoTemplate.doInsert(MongoTemplate.java:810) ~[spring-data-mongodb-1.8.4.RELEASE.jar:na]
    at org.springframework.data.mongodb.core.MongoTemplate.insert(MongoTemplate.java:749) ~[spring-data-mongodb-1.8.4.RELEASE.jar:na]
    at org.springframework.data.mongodb.repository.support.SimpleMongoRepository.save(SimpleMongoRepository.java:76) ~[spring-data-mongodb-1.8.4.RELEASE.jar:na]
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:1.8.0_121]
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[na:1.8.0_121]
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:1.8.0_121]
    at java.lang.reflect.Method.invoke(Method.java:498) ~[na:1.8.0_121]
    at org.springframework.data.repository.core.support.RepositoryFactorySupport$QueryExecutorMethodInterceptor.executeMethodOn(RepositoryFactorySupport.java:483) ~[spring-data-commons-1.11.4.RELEASE.jar:na]
    at org.springframework.data.repository.core.support.RepositoryFactorySupport$QueryExecutorMethodInterceptor.doInvoke(RepositoryFactorySupport.java:468) ~[spring-data-commons-1.11.4.RELEASE.jar:na]
    at org.springframework.data.repository.core.support.RepositoryFactorySupport$QueryExecutorMethodInterceptor.invoke(RepositoryFactorySupport.java:440) ~[spring-data-commons-1.11.4.RELEASE.jar:na]
    at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179) ~[spring-aop-4.2.6.RELEASE.jar:4.2.6.RELEASE]
    at org.springframework.data.projection.DefaultMethodInvokingMethodInterceptor.invoke(DefaultMethodInvokingMethodInterceptor.java:61) ~[spring-data-commons-1.11.4.RELEASE.jar:na]
    at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179) ~[spring-aop-4.2.6.RELEASE.jar:4.2.6.RELEASE]
    at org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:92) ~[spring-aop-4.2.6.RELEASE.jar:4.2.6.RELEASE]
    at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179) ~[spring-aop-4.2.6.RELEASE.jar:4.2.6.RELEASE]
    at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:208) ~[spring-aop-4.2.6.RELEASE.jar:4.2.6.RELEASE]
    at com.sun.proxy.$Proxy62.save(Unknown Source) ~[na:na]
    at com.tests4geeks.tutorials.controllers.VerificationController.verifyingWord(VerificationController.java:54) ~[classes/:na]
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:1.8.0_121]
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[na:1.8.0_121]
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:1.8.0_121]
    at java.lang.reflect.Method.invoke(Method.java:498) ~[na:1.8.0_121]
    at org.springframework.web.method.support.InvocableHandlerMethod.doInvoke(InvocableHandlerMethod.java:221) ~[spring-web-4.2.6.RELEASE.jar:4.2.6.RELEASE]
    at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:136) ~[spring-web-4.2.6.RELEASE.jar:4.2.6.RELEASE]
    at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:110) ~[spring-webmvc-4.2.6.RELEASE.jar:4.2.6.RELEASE]
    at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandlerMethod(RequestMappingHandlerAdapter.java:832) ~[spring-webmvc-4.2.6.RELEASE.jar:4.2.6.RELEASE]
    at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:743) ~[spring-webmvc-4.2.6.RELEASE.jar:4.2.6.RELEASE]
    at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:85) ~[spring-webmvc-4.2.6.RELEASE.jar:4.2.6.RELEASE]
    at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:961) ~[spring-webmvc-4.2.6.RELEASE.jar:4.2.6.RELEASE]
    at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:895) ~[spring-webmvc-4.2.6.RELEASE.jar:4.2.6.RELEASE]
    at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:967) ~[spring-webmvc-4.2.6.RELEASE.jar:4.2.6.RELEASE]
    at org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:869) ~[spring-webmvc-4.2.6.RELEASE.jar:4.2.6.RELEASE]
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:648) ~[tomcat-embed-core-8.0.33.jar:8.0.33]
    at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:843) ~[spring-webmvc-4.2.6.RELEASE.jar:4.2.6.RELEASE]
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:729) ~[tomcat-embed-core-8.0.33.jar:8.0.33]
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:292) ~[tomcat-embed-core-8.0.33.jar:8.0.33]
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:207) ~[tomcat-embed-core-8.0.33.jar:8.0.33]
    at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52) ~[tomcat-embed-websocket-8.0.33.jar:8.0.33]
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:240) ~[tomcat-embed-core-8.0.33.jar:8.0.33]
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:207) ~[tomcat-embed-core-8.0.33.jar:8.0.33]
    at org.springframework.web.filter.RequestContextFilter.doFilterInternal(RequestContextFilter.java:99) ~[spring-web-4.2.6.RELEASE.jar:4.2.6.RELEASE]
    at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) ~[spring-web-4.2.6.RELEASE.jar:4.2.6.RELEASE]
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:240) ~[tomcat-embed-core-8.0.33.jar:8.0.33]
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:207) ~[tomcat-embed-core-8.0.33.jar:8.0.33]
    at org.springframework.web.filter.HttpPutFormContentFilter.doFilterInternal(HttpPutFormContentFilter.java:87) ~[spring-web-4.2.6.RELEASE.jar:4.2.6.RELEASE]
    at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) ~[spring-web-4.2.6.RELEASE.jar:4.2.6.RELEASE]
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:240) ~[tomcat-embed-core-8.0.33.jar:8.0.33]
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:207) ~[tomcat-embed-core-8.0.33.jar:8.0.33]
    at org.springframework.web.filter.HiddenHttpMethodFilter.doFilterInternal(HiddenHttpMethodFilter.java:77) ~[spring-web-4.2.6.RELEASE.jar:4.2.6.RELEASE]
    at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) ~[spring-web-4.2.6.RELEASE.jar:4.2.6.RELEASE]
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:240) ~[tomcat-embed-core-8.0.33.jar:8.0.33]
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:207) ~[tomcat-embed-core-8.0.33.jar:8.0.33]
    at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:121) ~[spring-web-4.2.6.RELEASE.jar:4.2.6.RELEASE]
    at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) ~[spring-web-4.2.6.RELEASE.jar:4.2.6.RELEASE]
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:240) ~[tomcat-embed-core-8.0.33.jar:8.0.33]
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:207) ~[tomcat-embed-core-8.0.33.jar:8.0.33]
    at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:212) ~[tomcat-embed-core-8.0.33.jar:8.0.33]
    at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:106) [tomcat-embed-core-8.0.33.jar:8.0.33]
    at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:502) [tomcat-embed-core-8.0.33.jar:8.0.33]
    at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:141) [tomcat-embed-core-8.0.33.jar:8.0.33]
    at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:79) [tomcat-embed-core-8.0.33.jar:8.0.33]
    at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:88) [tomcat-embed-core-8.0.33.jar:8.0.33]
    at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:522) [tomcat-embed-core-8.0.33.jar:8.0.33]
    at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1095) [tomcat-embed-core-8.0.33.jar:8.0.33]
    at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:672) [tomcat-embed-core-8.0.33.jar:8.0.33]
    at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1502) [tomcat-embed-core-8.0.33.jar:8.0.33]
    at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.run(NioEndpoint.java:1458) [tomcat-embed-core-8.0.33.jar:8.0.33]
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) [na:1.8.0_121]
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) [na:1.8.0_121]
    at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61) [tomcat-embed-core-8.0.33.jar:8.0.33]
    at java.lang.Thread.run(Thread.java:745) [na:1.8.0_121]

【问题讨论】：

  • 你能分享一下用户类吗？
  • @cralfaro 我已经分享了用户类
  • @lualover2017 删除用户集合中的所有文档并再次尝试保存/更新
  • @cralfaro 我有但仍然是同样的错误
  • 您是否也从 int 更改为 BigInteger？你能粘贴java stacktrace吗？

标签： java spring-mvc spring-boot spring-data


【解决方案1】： 
try,
first get the record from the database,
userRepo.findOne(id).
then use saveandflush for update,
userRepo.saveAndFlush(entity).

【讨论】：

  • 在 UserMongoRepository 中将 Id 更改为 Wrapper class Integer，因为您声明 int 是用户类中的 Id。或者在 User 类中将 Strring 更改为 Id。
【解决方案2】：

根据您的代码，在您的存储库类中，您将 PK 定义为 String，因此您必须将 id 创建为 String。将您的代码修改为：

@Id
@GeneratedValue(strategy = GenerationType.AUTO)
private String id;

【讨论】：

  • @lualover2017 你能再看看我的回复吗？我在您的存储库中看到您将 PK 定义为 String，我们之前使用过 BigInteger
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