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我想用Spring Security配置Jasypt。我的配置文件看起來像這樣：在使用Jasypt和Spring Security 3.1時收到NullPointerException異常
jdbc.driver=com.mysql.jdbc.Driver
jdbc.url=jdbc:mysql://localhost:8090/sample
jdbc.username=ENC(*****) where the *****=the salted username
jdbc.password=ENC(*****) where the *****=the salted password
我的servlet的XML包含此格式正確豆設置：
<bean id="propertyPlaceholderConfigurer"
class="org.jasypt.spring31.properties.EncryptablePropertyPlaceholderConfigurer">
<constructor-arg ref="configurationEncryptor" />
<property name="location" value="/WEB-INF/jdbc.properties" />
</bean>
<bean id="configurationEncryptor" class="org.jasypt.encryption.pbe.StandardPBEStringEncryptor">
<property name="config" ref="environmentVariablesConfiguration" />
</bean>
<bean id="environmentVariablesConfiguration"
class="org.jasypt.encryption.pbe.config.EnvironmentStringPBEConfig">
<property name="algorithm" value="PBEWithMD5AndDES" />
<property name="passwordEnvName" value="APP_ENCRYPTION_PASSWORD" />
<!--<property name="password" value="**********" />-->
</bean>
<bean id="dataSource"
class="org.springframework.jdbc.datasource.DriverManagerDataSource">
<property name="driverClassName" value="${jdbc.driver}" />
<property name="url" value="${jdbc.url}" />
<property name="username" value="${jdbc.username}" />
<property name="password" value="${jdbc.password}" />
</bean>
我的環境變量在Windows中設置正確的APP_ENCRYPTION_PASSWORD。當我從命令行回顯時它是可見的。當我使用這個設置時，我得到下面的空指針棧跟蹤。當我使用硬編碼的鹽密碼「 - >」時，我的應用程序運行順利。有人可以告訴我爲什麼Jasypt或Spring可能沒有正確地使用我的環境變量？任何信息都會受到歡迎。謝謝。
org.springframework.web.context.ContextLoader initWebApplicationContext
SEVERE: Context initialization failed
java.lang.NullPointerException
at org.jasypt.encryption.pbe.config.SimplePBEConfig.getPasswordCharArray(SimplePBEConfig.java:434)
at org.jasypt.encryption.pbe.StandardPBEByteEncryptor.resolveConfigurationPassword(StandardPBEByteEncryptor.java:740)
at org.jasypt.encryption.pbe.StandardPBEByteEncryptor.initialize(StandardPBEByteEncryptor.java:590)
at org.jasypt.encryption.pbe.StandardPBEStringEncryptor.initialize(StandardPBEStringEncryptor.java:553)
at org.jasypt.encryption.pbe.StandardPBEStringEncryptor.decrypt(StandardPBEStringEncryptor.java:705)
at org.jasypt.properties.PropertyValueEncryptionUtils.decrypt(PropertyValueEncryptionUtils.java:72)
at org.jasypt.spring31.properties.EncryptablePropertyPlaceholderConfigurer.convertPropertyValue(EncryptablePropertyPlaceholderConfigurer.java:109)
at org.springframework.beans.factory.config.PropertyResourceConfigurer.convertProperty(PropertyResourceConfigurer.java:121)
at org.springframework.beans.factory.config.PropertyResourceConfigurer.convertProperties(PropertyResourceConfigurer.java:104)
at org.springframework.beans.factory.config.PropertyResourceConfigurer.postProcessBeanFactory(PropertyResourceConfigurer.java:81)
at org.springframework.context.support.AbstractApplicationContext.invokeBeanFactoryPostProcessors(AbstractApplicationContext.java:687)
at org.springframework.context.support.AbstractApplicationContext.invokeBeanFactoryPostProcessors(AbstractApplicationContext.java:662)
at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:454)
at org.springframework.web.context.ContextLoader.configureAndRefreshWebApplicationContext(ContextLoader.java:388)
at org.springframework.web.context.ContextLoader.initWebApplicationContext(ContextLoader.java:293)
at org.springframework.web.context.ContextLoaderListener.contextInitialized(ContextLoaderListener.java:111)
at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:4701)
at org.apache.catalina.core.StandardContext$1.call(StandardContext.java:5204)
at org.apache.catalina.core.StandardContext$1.call(StandardContext.java:5199)
at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:303)
at java.util.concurrent.FutureTask.run(FutureTask.java:138)
at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
at java.lang.Thread.run(Thread.java:662)
Aug 7, 2013 8:46:15 AM org.apache.catalina.core.StandardContext listenerStart
SEVERE: Exception sending context initialized event to listener instance of class org.springframework.web.context.ContextLoaderListener
java.lang.NullPointerException
at org.jasypt.encryption.pbe.config.SimplePBEConfig.getPasswordCharArray(SimplePBEConfig.java:434)
at org.jasypt.encryption.pbe.StandardPBEByteEncryptor.resolveConfigurationPassword(StandardPBEByteEncryptor.java:740)
at org.jasypt.encryption.pbe.StandardPBEByteEncryptor.initialize(StandardPBEByteEncryptor.java:590)
at org.jasypt.encryption.pbe.StandardPBEStringEncryptor.initialize(StandardPBEStringEncryptor.java:553)
at org.jasypt.encryption.pbe.StandardPBEStringEncryptor.decrypt(StandardPBEStringEncryptor.java:705)
at org.jasypt.properties.PropertyValueEncryptionUtils.decrypt(PropertyValueEncryptionUtils.java:72)
at org.jasypt.spring31.properties.EncryptablePropertyPlaceholderConfigurer.convertPropertyValue(EncryptablePropertyPlaceholderConfigurer.java:109)
at org.springframework.beans.factory.config.PropertyResourceConfigurer.convertProperty(PropertyResourceConfigurer.java:121)
at org.springframework.beans.factory.config.PropertyResourceConfigurer.convertProperties(PropertyResourceConfigurer.java:104)
at org.springframework.beans.factory.config.PropertyResourceConfigurer.postProcessBeanFactory(PropertyResourceConfigurer.java:81)
at org.springframework.context.support.AbstractApplicationContext.invokeBeanFactoryPostProcessors(AbstractApplicationContext.java:687)
at org.springframework.context.support.AbstractApplicationContext.invokeBeanFactoryPostProcessors(AbstractApplicationContext.java:662)
at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:454)
at org.springframework.web.context.ContextLoader.configureAndRefreshWebApplicationContext(ContextLoader.java:388)
at org.springframework.web.context.ContextLoader.initWebApplicationContext(ContextLoader.java:293)
at org.springframework.web.context.ContextLoaderListener.contextInitialized(ContextLoaderListener.java:111)
at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:4701)
at org.apache.catalina.core.StandardContext$1.call(StandardContext.java:5204)
at org.apache.catalina.core.StandardContext$1.call(StandardContext.java:5199)
at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:303)
at java.util.concurrent.FutureTask.run(FutureTask.java:138)
at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
at java.lang.Thread.run(Thread.java:662)
所以，只是爲了確認，執行'回聲％APP_ENCRYPTION_PASSWORD％'在產量迅速正確的值，你就絕對不會傳入財產'-DAPP_ENCRYPTION_PASSWORD = foo'？ – Jonathan
您是從Eclipse IDE運行程序嗎？ –
回答第一個問題，是的。顯示正確的值。第二個問題也是。我正在使用Eclipse IDE。 – user2660762