我的注射有问题,这是我第一次尝试。我正在使用 Wildfly 和 Java EE 7。尝试NullPointerException
访问.Authenticator
LoginController
我使用 maven,我的 beans.xml 位于下,src/main/webapp/META-INF
但我尝试将其放入src/main/webapp/WEB-INF/classes
但未成功。
这是我的代码:
要注入的类:
@Stateless
public class Authenticator {
@Inject
HashGenerator hashGenerator;
@Inject
UserPersistance userPersistance;
public boolean authenticate(final String username, final String password) {
User user = userPersistance.getUser(username);
String salt = user.getSalt();
String hash = hashGenerator.hash(password, salt);
return user.getPassword().equals(hash);
}
}
抛出 NullPointerException 的控制器:
@Stateless
public class LoginController {
@Inject
Authenticator authenticator;
public void login(String username, String password) {
if (authenticator.authenticate(username, password)) {
UI ui = UI.getCurrent();
ui.getSession().setAttribute(SessionAttribute.USER.getAttributeName(), username);
ui.getNavigator().navigateTo(MainView.getName());
}
}
}
还有我的 beans.xml(下src/main/webapp/META-INF
)
<beans
xmlns="http://xmlns.jcp.org/xml/ns/javaee"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/beans_1_1.xsd"
bean-discovery-mode="all">
</beans>
我做错了什么?
更新
抱歉,我之前写错了 beans.xml 的文件夹名称。
因此,为了清楚起见,maven 生成一个 WAR 存档,我之前尝试将 beans.xml 放在META-INF
,WEB-INF
和WEB-INF/classes
. 这些文件夹似乎都无法正常工作。我已经检查(尝试过并且有效)来自 JBoss AS 7 的快速入门项目,他们将 beans.xml 放在WEB-INF
. 我也做过同样的事情。
我认为这可能来自我的 Maven 配置。这里是 :
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>be.normegil</groupId>
<artifactId>datamanager</artifactId>
<version>1.0-SNAPSHOT</version>
<packaging>war</packaging>
<name>datamanager</name>
<properties>
<endorsed.dir>${project.build.directory}/endorsed</endorsed.dir>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<maven.compiler.target>1.7</maven.compiler.target>
<maven.compiler.source>1.7</maven.compiler.source>
<failOnMissingWebXml>false</failOnMissingWebXml>
<maven.build.timestamp.format>yyyy-MM-dd'T'HH:mm:ss</maven.build.timestamp.format>
<vaadin.version>7.1.9</vaadin.version>
<vaadin.plugin.version>${vaadin.version}</vaadin.plugin.version>
</properties>
<pluginRepositories>
<pluginRepository>
<id>vaadin-snapshots</id>
<url>http://oss.sonatype.org/content/repositories/vaadin-snapshots/</url>
<releases>
<enabled>false</enabled>
</releases>
<snapshots>
<enabled>true</enabled>
</snapshots>
</pluginRepository>
</pluginRepositories>
<dependencies>
<dependency>
<groupId>javax</groupId>
<artifactId>javaee-api</artifactId>
<version>7.0</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>javax.enterprise</groupId>
<artifactId>cdi-api</artifactId>
<version>1.1</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>javax.inject</groupId>
<artifactId>javax.inject</artifactId>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>javax.annotation</groupId>
<artifactId>javax.annotation-api</artifactId>
<version>1.2</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>javax.ejb</groupId>
<artifactId>javax.ejb-api</artifactId>
<version>3.2</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>javax.transaction</groupId>
<artifactId>javax.transaction-api</artifactId>
<version>1.2</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>javax.persistence</groupId>
<artifactId>persistence-api</artifactId>
<version>1.0.2</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>com.vaadin</groupId>
<artifactId>vaadin-server</artifactId>
<version>${vaadin.version}</version>
</dependency>
<dependency>
<groupId>com.vaadin</groupId>
<artifactId>vaadin-client-compiled</artifactId>
<version>${vaadin.version}</version>
</dependency>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>4.11</version>
</dependency>
<dependency>
<groupId>com.vaadin</groupId>
<artifactId>vaadin-themes</artifactId>
<version>${vaadin.version}</version>
</dependency>
<dependency>
<groupId>com.vaadin</groupId>
<artifactId>vaadin-cdi</artifactId>
<version>1.0.0.alpha1</version>
</dependency>
<dependency>
<groupId>org.mockito</groupId>
<artifactId>mockito-all</artifactId>
<version>1.9.5</version>
</dependency>
<dependency>
<groupId>org.apache.derby</groupId>
<artifactId>derby</artifactId>
<version>10.7.1.1</version>
</dependency>
</dependencies>
<build>
<finalName>${project.artifactId}</finalName>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<version>3.1</version>
<configuration>
<source>1.7</source>
<target>1.7</target>
</configuration>
</plugin>
<plugin>
<groupId>org.wildfly.plugins</groupId>
<artifactId>wildfly-maven-plugin</artifactId>
<version>1.0.0.Beta1</version>
</plugin>
</plugins>
</build>
</project>