引起:org.postgresql.util.PSQLException:致命:用户"admin"的密码验证失败

Question

当我尝试使用我的凭据(pgadmin iii - postgres sqltool)连接到我的PostgreSQL服务器时,它工作正常.当我尝试从我的Java应用程序连接时,我得到以下日志.有点奇怪

org.springframework.transaction.CannotCreateTransactionException: Could not open JDBC Connection for transaction; nested exception is org.postgresql.util.PSQLException: FATAL: password authentication failed for user "admin"
    at org.springframework.jdbc.datasource.DataSourceTransactionManager.doBegin(DataSourceTransactionManager.java:240)
    at org.springframework.transaction.support.AbstractPlatformTransactionManager.getTransaction(AbstractPlatformTransactionManager.java:371)
    at org.springframework.transaction.interceptor.TransactionAspectSupport.createTransactionIfNecessary(TransactionAspectSupport.java:335)
    at org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:105)
    at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)
    at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:202)
    at $Proxy8.getCollegeDetails(Unknown Source)
    at com.cts.bo.HESBO.registerCourse(HESBO.java:42)
    at com.cts.facade.HESFacade.registerCourse(HESFacade.java:34)
    at com.cts.manager.HESManager.registerCourse(HESManager.java:34)
    at com.cts.presentation.Tester.registerCourse(Tester.java:66)
    at com.cts.presentation.Tester.main(Tester.java:159)
**Caused by: org.postgresql.util.PSQLException: FATAL: password authentication failed for user "admin"**
    at org.postgresql.core.v3.ConnectionFactoryImpl.doAuthentication(ConnectionFactoryImpl.java:415)
    at org.postgresql.core.v3.ConnectionFactoryImpl.openConnectionImpl(ConnectionFactoryImpl.java:188)
    at org.postgresql.core.ConnectionFactory.openConnection(ConnectionFactory.java:64)
    at org.postgresql.jdbc2.AbstractJdbc2Connection.<init>(AbstractJdbc2Connection.java:143)
    at org.postgresql.jdbc3.AbstractJdbc3Connection.<init>(AbstractJdbc3Connection.java:29)
    at org.postgresql.jdbc3g.AbstractJdbc3gConnection.<init>(AbstractJdbc3gConnection.java:21)
    at org.postgresql.jdbc3g.Jdbc3gConnection.<init>(Jdbc3gConnection.java:24)
    at org.postgresql.Driver.makeConnection(Driver.java:412)
    at org.postgresql.Driver.connect(Driver.java:280)
    at java.sql.DriverManager.getConnection(Unknown Source)
    at java.sql.DriverManager.getConnection(Unknown Source)
    at org.springframework.jdbc.datasource.DriverManagerDataSource.getConnectionFromDriverManager(DriverManagerDataSource.java:173)
    at org.springframework.jdbc.datasource.DriverManagerDataSource.getConnectionFromDriver(DriverManagerDataSource.java:164)
    at org.springframework.jdbc.datasource.AbstractDriverBasedDataSource.getConnectionFromDriver(AbstractDriverBasedDataSource.java:149)
    at org.springframework.jdbc.datasource.AbstractDriverBasedDataSource.getConnection(AbstractDriverBasedDataSource.java:119)
    at org.springframework.jdbc.datasource.DataSourceTransactionManager.doBegin(DataSourceTransactionManager.java:202)
    ... 11 more

.properties文件

jdbc.driverClassName=org.postgresql.Driver
jdbc.url=jdbc:postgresql://localhost:5432/postgres

jdbc.password=admin
jdbc.username=admin

spring.xml

<bean
        class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer">
        <property name="location">
            <value>com\cts\resource\constant.properties</value>
        </property>
    </bean>

    <bean id="dataSource"
        class="org.springframework.jdbc.datasource.DriverManagerDataSource">
        <property name="driverClassName" value="${jdbc.driverClassName}" />
        <property name="url" value="${jdbc.url}" />
        <property name="username" value="${jdbc.username}" />
        <property name="password" value="${jdbc.password}" />
    </bean> 

    <bean id="transactionManager"
          class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
        <property name="dataSource" ref="dataSource"/>
    </bean>

对此有任何帮助非常感谢,因为这个奇怪的错误我无法进步.

Answer 1

我认为问题可能是 postgres 数据库配置为允许使用 md5 散列的唯一密码。

您可以通过查看配置文件来检查这是否属实pg_hba.conf。host all all all 如果发现该属性配置如下，请搜索以下属性：

host all all all md5

问题是您需要将密码哈希为 md5。您可以通过将配置更改为来解决此问题：

• trust而不是md5-> 将允许用户无需任何密码即可连接
• password而不是md5-> 将允许用户使用纯文本密码进行连接

Answer 2

在“登录”部分下创建一个新用户并在 application.properties 中使用该用户可以解决此问题。