Question

我有UserDao和UserDaoImpl的用户PoJo。我的密码哈希基于PBKDF2WithHmacSHA256。我使用的是Spring Security Corw 4.2.3和Spring Authentication Manager 我创建了我的身份验证提供程序。

这是我的用户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]

Answer 1

根据您的日志：

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

应该是......是空的。你能检查一下User login是否为空？！

希望得到这个帮助。

Answer 2

我认为NPE被抛入

行

ERROR - SequenceMediator Runtime error occurred whi
le mediating the message
java.lang.NullPointerException
        at java.io.Reader.<init>(Reader.java:78)
        at java.io.InputStreamReader.<init>(InputStreamReader.java:72)
        at org.wso2.carbon.mediator.datamapper.engine.input.readers.JSONInputRea
der.readFromInputStream(JSONInputReader.java:76)
        at org.wso2.carbon.mediator.datamapper.engine.input.readers.JSONInputRea
der.read(JSONInputReader.java:59)
        at org.wso2.carbon.mediator.datamapper.engine.input.InputBuilder.buildIn
putModel(InputBuilder.java:59)
        at org.wso2.carbon.mediator.datamapper.engine.core.mapper.MappingHandler
.doMap(MappingHandler.java:88)
        at org.wso2.carbon.mediator.datamapper.DataMapperMediator.transform(Data
MapperMediator.java:309)
        at org.wso2.carbon.mediator.datamapper.DataMapperMediator.mediate(DataMa
pperMediator.java:259)
        at org.apache.synapse.mediators.AbstractListMediator.mediate(AbstractLis
tMediator.java:89)
        at org.apache.synapse.mediators.AbstractListMediator.mediate(AbstractLis
tMediator.java:59)
        at org.apache.synapse.mediators.base.SequenceMediator.mediate(SequenceMe
diator.java:158)

您的查询返回null（找不到用户）。

根据你的评论，SQL是

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

用户是否存在（电子邮件中包含逗号'don @ gmail，com'）？我想不是。

BTW代码有SQL注入。而是在SQL

中定义参数

SELECT EMAIL,PASSWORD FROM USERS WHERE USERNAME='don@gmail,com'

并将值作为参数传递以删除SQL注入。

在电子邮件不正确时添加案例处理，并且不存在具有指定登录的用户 - 例如检查查询是否返回null。

Answer 3

在用？

定义参数后我成功了

java.lang.NullPointerException：JDBC的null

3 个答案: