您好在发布此问题之前,我看到了很多stackoverflow问题并尝试了一切,但没有任何效果。 我正在使用openshift免费层(3档)。在我的eclipse-IDE中配置openshift也提供了SSH密钥。没有问题我可以在openshift中运行我的应用程序并且应用程序已加载。登录时失败并出现以下异常“< strong> mysql - 通讯链接失败“
以下代码用于连接数据库
Class.forName("com.mysql.jdbc.Driver");
Connection con=DriverManager.getConnection(
"jdbc:mysql://127.13.78.130:3306/taskmgmt","adminJbwWd9z","IdgbNcEAjhdv");
在Openshift中,我能够看到mysql设备以及凭证,
在openshift phpMyAdmin中,我将看到我的数据库&amp;表格,请参见下图以供参考,
所以我尝试使用eclipse端口转发,请找下面的图片以供参考,
端口转发后,我使用以下代码连接到DB,
Class.forName("com.mysql.jdbc.Driver");
Connection con=DriverManager.getConnection(
"jdbc:mysql://127.0.0.1:3306/taskmgmt","adminJbwWd9z","IdgbNcEAjhdv");
连接成功。但是当通过Spring-Security连接时,我正面临异常。
请找到用于数据库连接的spring-security xml,
<beans:beans xmlns:beans="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:context="http://www.springframework.org/schema/context"
xmlns:p="http://www.springframework.org/schema/p" xmlns="http://www.springframework.org/schema/security"
xsi:schemaLocation="http://www.springframework.org/schema/security http://www.springframework.org/schema/security/spring-security-3.2.xsd
http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd
http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.2.xsd">
<!-- This will activate the expressions in spring valid expr are : hasRole,hasAnyRole,hasPermission,PermitAll -->
<http use-expressions="true" auto-config="true">
<!-- Allow login only user must have ROLE_USER -->
<!-- The below line is for spring basic authentication without using custom
controller * jsp <http-basic/> -->
<!-- For custom login use the below code -->
<intercept-url pattern="/login*" access="permitAll" /> <!-- Without this it won't allow the access for login.html because in the
above we restrained URL with ROLE_USER -->
<intercept-url pattern="/resources/**" access="permitAll"/>
<intercept-url pattern="/loginFailed.html" access="permitAll" />
<intercept-url pattern="/logout.html" access="permitAll" />
<intercept-url pattern="/signup.html" access="permitAll" />
<intercept-url pattern="/signupSubmit.html" access="permitAll" />
<intercept-url pattern="/session-expired.html" access="permitAll" />
<intercept-url pattern="/updatepassword*" access="permitAll"/>
<intercept-url pattern="/changePassword*" access="permitAll"/>
<intercept-url pattern="/403.html" access="permitAll" />
<!--<intercept-url pattern="/**" access="ROLE_USER"/> if we activate expression
then we should use hasRole or hasAnyRole or hasPermission or PermitAll in
access other wise it ill throw http status 500 failed to evaluate expr error -->
<intercept-url pattern="/**" access="hasRole('ROLE_USER')"/>
<form-login login-page="/login.html"
authentication-failure-url="/loginFailed.html" authentication-success-handler-ref="successAuthenticationHandler"/>
<logout logout-success-url="/logout.html" delete-cookies="JSESSIONID"/>
<access-denied-handler error-page="/403.html" />
<remember-me key="myAppKey" user-service-ref="userDetailsService"/>
<!-- This will prevent a user from logging in multiple times - a second login will cause the first to be invalidated.
Often you would prefer to prevent a second login, in which case you can use -->
<session-management invalid-session-url="/session-expired.html">
<concurrency-control max-sessions="1" error-if-maximum-exceeded="true" expired-url="/session-expired.html"/>
</session-management>
</http>
<!-- Password Hashing Bean -->
<beans:bean id="passwordEncoder" class="org.springframework.security.crypto.bcrypt.BCryptPasswordEncoder" >
<beans:constructor-arg name="strength" value="12" />
</beans:bean>
<!-- After successfull login using the below handler we will map to corresponding screen -->
<beans:bean id="successAuthenticationHandler"
class="com.taskmanagement.authentication.handler.SuccessAuthenticationHandler"/>
<authentication-manager>
<!-- <authentication-provider user-service-ref="userDetailsService"/> -->
<authentication-provider>
<!-- The below code will configure md5 <password-encoder hash="md5"></password-encoder> -->
<!-- The below code will configure bcrypt -->
<password-encoder ref="passwordEncoder"></password-encoder>
<!--<jdbc-user-service data-source-ref="dataSource" /> -->
<jdbc-user-service data-source-ref="dataSource"
users-by-username-query="select username,password, enabled from users where username=?"
authorities-by-username-query="select username, authority from authorities where username =? " />
</authentication-provider>
</authentication-manager>
<beans:bean id="dataSource"
class="org.springframework.jdbc.datasource.DriverManagerDataSource">
<beans:property name="driverClassName" value="com.mysql.jdbc.Driver"></beans:property>
<beans:property name="url"
value="jdbc:mysql://127.0.0.1:3306/taskmgmt"></beans:property>
<beans:property name="username" value="adminJbwWd9z"></beans:property>
<beans:property name="password" value="IdgbNcEAjhdv"></beans:property>
</beans:bean>
<beans:bean id="userDetailsService"
class="org.springframework.security.core.userdetails.jdbc.JdbcDaoImpl">
<beans:property name="dataSource" ref="dataSource"></beans:property>
</beans:bean>
请有人协助我解决此问题。