java.lang.NullPointerException：nullの場合

私はUserDaoとUserDaoImplを持つユーザーPoJoを持っています。私のパスワードハッシュはPBKDF2WithHmacSHA256に基づいています。私はSpring Security Corw 4.2.3とSpring Authentication Managerを使用しています私は認証プロバイダを作成しました。ここでjava.lang.NullPointerException：nullの場合

は私のユーザーDAOIMPL

package com.enlight.yaadle.uplift.user; 

import java.security.NoSuchAlgorithmException; 
import java.security.spec.InvalidKeySpecException; 
import java.sql.ResultSet; 
import java.sql.SQLException; 
import java.util.ArrayList; 
import java.util.Collection; 
import java.util.List; 
import java.util.UUID; 

//import javax.swing.tree.RowMapper; 
import org.springframework.jdbc.core.RowMapper; 
import org.springframework.security.core.GrantedAuthority; 
import org.springframework.security.core.userdetails.UserDetails; 
import org.springframework.security.core.userdetails.UserDetailsService; 
import org.springframework.security.core.userdetails.UsernameNotFoundException; 
import org.slf4j.Logger; 
import org.slf4j.LoggerFactory; 
import org.springframework.beans.factory.annotation.Autowired; 
import org.springframework.jdbc.core.JdbcTemplate; 
import org.springframework.stereotype.Component; 

import com.enlight.yaadle.uplift.security.StrongPassImpl; 
import com.enlight.yaadle.uplift.user.User; 

@Component 
public class UserDaoImpl implements UserDao,UserDetailsService { 

    private final Logger logger = LoggerFactory.getLogger(UserDaoImpl.class); 

     @Autowired 
     JdbcTemplate jdbcTemplate; 

     public void setJdbcTemplate(JdbcTemplate jdbcTemplate) { this.jdbcTemplate = jdbcTemplate;  } 
     public JdbcTemplate jdbcTemplate() { return jdbcTemplate; } 


     public void register(User user) { 
      final String CREATE_USER = "INSERT INTO USERS (username, displayname, email, password, id,enabled) VALUES (?, ?, ?, ? , ?, ?)"; 

      UUID uuid = UUID.randomUUID();String randomUUIDString = uuid.toString();String id=randomUUIDString; 

      try { 
       String hashPass = StrongPassImpl.generateHash(user.getPassword()); 
       int status = jdbcTemplate.update(CREATE_USER,user.getEmail(),user.getUsername(),user.getEmail(),hashPass,id,false); 
       //logger.info(hashPass); 
       logger.info("User Updated status: "+ status + "\nDisplay UserName: "+ user.getUsername() + "\nDisplay Email: "+ user.getEmail() + 
         "\nDisplay Password: "+ user.getPassword()+ "\nDisplay Id:" + id ); 

      } catch (NoSuchAlgorithmException e) { e.printStackTrace();} 
       catch (InvalidKeySpecException e) { e.printStackTrace();} 
     } 

     public User findUserByEmail(User login) { 
      logger.info("I am inside findbyemail"); 
      final String sql = "SELECT EMAIL,PASSWORD FROM USERS WHERE USERNAME='" + login.getUsername() +"'"; 
      logger.info("Query made " + sql); 

      User principal=jdbcTemplate.queryForObject(sql, new UserRowMapper()); 
      logger.info("Query made " + principal.getUsername()); 

      return principal; 

      } 

public class UserRowMapper implements RowMapper<User> 
{ 
    public User mapRow(ResultSet rs, int rowNum) throws SQLException { 
    logger.info("I am inside mapper"); 
    User user = new User(); 
    user.setPassword(rs.getString("password")); 
    user.setUsername(rs.getString("username")); 
    return user; 
} 
} 

     @Override 
     public UserDetails loadUserByUsername(String username) throws UsernameNotFoundException { 
      return null; 
     } 

     @Override 
     public User loadUserByUsername(User login) { 
      // TODO Auto-generated method stub 
      return null; 
     } 


     }

java.lang.NullPointerException: null 
    at com.enlight.yaadle.uplift.user.UserDaoImpl.findUserByEmail(UserDaoImpl.java:60) ~[classes/:na] 
    at com.enlight.yaadle.uplift.security.YaadleAuthProvider.authenticate(YaadleAuthProvider.java:48) ~[classes/:na] 
    at org.springframework.security.authentication.ProviderManager.authenticate(ProviderManager.java:174) ~[spring-security-core-4.2.3.RELEASE.jar:4.2.3.RELEASE] 
    at org.springframework.security.authentication.ProviderManager.authenticate(ProviderManager.java:199) ~[spring-security-core-4.2.3.RELEASE.jar:4.2.3.RELEASE] 
    at org.springframework.security.web.authentication.UsernamePasswordAuthenticationFilter.attemptAuthentication(UsernamePasswordAuthenticationFilter.java:94) ~[spring-security-web-4.2.3.RELEASE.jar:4.2.3.RELEASE] 
    at org.springframework.security.web.authentication.AbstractAuthenticationProcessingFilter.doFilter(AbstractAuthenticationProcessingFilter.java:212) ~[spring-security-web-4.2.3.RELEASE.jar:4.2.3.RELEASE] 
    at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:331) ~[spring-security-web-4.2.3.RELEASE.jar:4.2.3.RELEASE] 
    at org.springframework.security.web.authentication.logout.LogoutFilter.doFilter(LogoutFilter.java:116) ~[spring-security-web-4.2.3.RELEASE.jar:4.2.3.RELEASE] 
    at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:331) ~[spring-security-web-4.2.3.RELEASE.jar:4.2.3.RELEASE] 
    at org.springframework.security.web.csrf.CsrfFilter.doFilterInternal(CsrfFilter.java:124) ~[spring-security-web-4.2.3.RELEASE.jar:4.2.3.RELEASE] 
    at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) ~[spring-web-4.3.12.RELEASE.jar:4.3.12.RELEASE] 
    at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:331) ~[spring-security-web-4.2.3.RELEASE.jar:4.2.3.RELEASE] 
    at org.springframework.security.web.header.HeaderWriterFilter.doFilterInternal(HeaderWriterFilter.java:64) ~[spring-security-web-4.2.3.RELEASE.jar:4.2.3.RELEASE] 
    at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) ~[spring-web-4.3.12.RELEASE.jar:4.3.12.RELEASE] 
    at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:331) ~[spring-security-web-4.2.3.RELEASE.jar:4.2.3.RELEASE] 
    at org.springframework.security.web.context.SecurityContextPersistenceFilter.doFilter(SecurityContextPersistenceFilter.java:105) ~[spring-security-web-4.2.3.RELEASE.jar:4.2.3.RELEASE] 
    at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:331) ~[spring-security-web-4.2.3.RELEASE.jar:4.2.3.RELEASE] 
    at org.springframework.security.web.context.request.async.WebAsyncManagerIntegrationFilter.doFilterInternal(WebAsyncManagerIntegrationFilter.java:56) ~[spring-security-web-4.2.3.RELEASE.jar:4.2.3.RELEASE] 
    at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) ~[spring-web-4.3.12.RELEASE.jar:4.3.12.RELEASE] 
    at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:331) ~[spring-security-web-4.2.3.RELEASE.jar:4.2.3.RELEASE] 
    at org.springframework.security.web.FilterChainProxy.doFilterInternal(FilterChainProxy.java:214) ~[spring-security-web-4.2.3.RELEASE.jar:4.2.3.RELEASE] 
    at org.springframework.security.web.FilterChainProxy.doFilter(FilterChainProxy.java:177) ~[spring-security-web-4.2.3.RELEASE.jar:4.2.3.RELEASE] 
    at org.springframework.web.filter.DelegatingFilterProxy.invokeDelegate(DelegatingFilterProxy.java:347) ~[spring-web-4.3.12.RELEASE.jar:4.3.12.RELEASE] 
    at org.springframework.web.filter.DelegatingFilterProxy.doFilter(DelegatingFilterProxy.java:263) ~[spring-web-4.3.12.RELEASE.jar:4.3.12.RELEASE] 
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) ~[tomcat-embed-core-8.5.23.jar:8.5.23] 
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) ~[tomcat-embed-core-8.5.23.jar:8.5.23] 
    at org.springframework.web.filter.RequestContextFilter.doFilterInternal(RequestContextFilter.java:99) ~[spring-web-4.3.12.RELEASE.jar:4.3.12.RELEASE] 
    at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) ~[spring-web-4.3.12.RELEASE.jar:4.3.12.RELEASE] 
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) ~[tomcat-embed-core-8.5.23.jar:8.5.23] 
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) ~[tomcat-embed-core-8.5.23.jar:8.5.23] 
    at org.springframework.web.filter.HttpPutFormContentFilter.doFilterInternal(HttpPutFormContentFilter.java:108) ~[spring-web-4.3.12.RELEASE.jar:4.3.12.RELEASE] 
    at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) ~[spring-web-4.3.12.RELEASE.jar:4.3.12.RELEASE] 
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) ~[tomcat-embed-core-8.5.23.jar:8.5.23] 
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) ~[tomcat-embed-core-8.5.23.jar:8.5.23] 
    at org.springframework.web.filter.HiddenHttpMethodFilter.doFilterInternal(HiddenHttpMethodFilter.java:81) ~[spring-web-4.3.12.RELEASE.jar:4.3.12.RELEASE] 
    at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) ~[spring-web-4.3.12.RELEASE.jar:4.3.12.RELEASE] 
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) ~[tomcat-embed-core-8.5.23.jar:8.5.23] 
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) ~[tomcat-embed-core-8.5.23.jar:8.5.23] 
    at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:197) ~[spring-web-4.3.12.RELEASE.jar:4.3.12.RELEASE] 
    at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) ~[spring-web-4.3.12.RELEASE.jar:4.3.12.RELEASE] 
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) ~[tomcat-embed-core-8.5.23.jar:8.5.23] 
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) ~[tomcat-embed-core-8.5.23.jar:8.5.23] 
    at org.springframework.boot.actuate.autoconfigure.MetricsFilter.doFilterInternal(MetricsFilter.java:106) ~[spring-boot-actuator-1.5.8.RELEASE.jar:1.5.8.RELEASE] 
    at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) ~[spring-web-4.3.12.RELEASE.jar:4.3.12.RELEASE] 
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) ~[tomcat-embed-core-8.5.23.jar:8.5.23] 
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) ~[tomcat-embed-core-8.5.23.jar:8.5.23] 
    at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:199) ~[tomcat-embed-core-8.5.23.jar:8.5.23] 
    at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:96) [tomcat-embed-core-8.5.23.jar:8.5.23] 
    at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:478) [tomcat-embed-core-8.5.23.jar:8.5.23] 
    at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:140) [tomcat-embed-core-8.5.23.jar:8.5.23] 
    at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:81) [tomcat-embed-core-8.5.23.jar:8.5.23] 
    at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:87) [tomcat-embed-core-8.5.23.jar:8.5.23] 
    at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:342) [tomcat-embed-core-8.5.23.jar:8.5.23] 
    at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:803) [tomcat-embed-core-8.5.23.jar:8.5.23] 
    at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:66) [tomcat-embed-core-8.5.23.jar:8.5.23] 
    at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:868) [tomcat-embed-core-8.5.23.jar:8.5.23] 
    at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1459) [tomcat-embed-core-8.5.23.jar:8.5.23] 
    at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49) [tomcat-embed-core-8.5.23.jar:8.5.23] 
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) [na:1.8.0_131] 
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) [na:1.8.0_131] 
    at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61) [tomcat-embed-core-8.5.23.jar:8.5.23] 
    at java.lang.Thread.run(Thread.java:748) [na:1.8.0_131]

出典

2017-10-30 DON

私はあなたのクエリは（ユーザーを見つけることができません）はnullを返します

logger.info("Query made " + principal.getUsername());

NPEが一列にスローされると思います。あなたのコメントのSQLによる

は（メールはカンマ 'ドン@ gmailの、COM' を含む）

SELECT EMAIL,PASSWORD FROM USERS WHERE USERNAME='[email protected],com'

は、ユーザが存在していますか？私はそうは思わない。

このコードにはSQLインジェクションがあります。 SQLの代わりにパラメータを定義してください。

SELECT EMAIL,PASSWORD FROM USERS WHERE USERNAME=?

SQL注入を削除するパラメータとして値を渡してください。

電子メールが正しくなく、指定されたログインを持つユーザーが存在しない場合の処理を追加します。クエリがnullを返すかどうかを確認します。

出典

2017-10-31 06:55:02 StanislavL

あなたの丸太の基本である：それがかなっあるべき

java.lang.NullPointerException: null 
    at com.enlight.yaadle.uplift.user.UserDaoImpl.findUserByEmail(UserDaoImpl.java:60) ~[classes/:na]

nullです。 User loginがヌルかどうか確認できますか？

このヘルプが必要です。

出典

2017-10-30 22:55:47

nullポインタの前のログで、ロガー出力を取得しました[p-nio-80-exec-6] ceyaadle.uplift.user.UserDaoImpl：findbyemail [p-nio-80-exec-6] ceyaadle.uplift.user.UserDaoImpl：クエリーを作成しました。ユーザー名= 'don @ gmail、com'のエラーメッセージ9680 --- [p-nio-80-exec-6] oaccC [。[。[/ ] [dispatcherServlet]：サーブレット[dispatcherServlet]のServlet.service（）がpath []例外をスローした場合 – DON

@DON：クエリを確認できますか？クエリが行われましたか？SELECT EMAIL、USERS WHERE userNAME = 'don @ gmail、 com '？それは "don @ gmail、com"ですか？ COMMAまたはDOT？ –

パラメータを前述のように定義した後、正常に終了しましたか？

出典

2017-11-05 04:30:16 DON

java.lang.NullPointerException：nullの場合

答えて

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