뭔가 놓쳤음에 틀림 없으나 용접 작업을 할 수 없습니다! 그것은 간단한 웹 애플리케이션, (내가 서블릿에 주입하고 싶은 것을) 하나의 서블릿, 하나 개의 서비스 여기콩 스캔 용접을 할 수 없습니다
가있는 파일입니다 :
의 pom.xml
<dependency>
<groupId>org.jboss.weld.servlet</groupId>
<artifactId>weld-servlet-core</artifactId>
<version>2.3.4.Final</version>
</dependency>
의 context.xml
<Context>
<Resource name="BeanManager"
auth="Container"
type="javax.enterprise.inject.spi.BeanManager"
factory="org.jboss.weld.resources.ManagerObjectFactory"/>
</Context>
내 서비스
import javax.enterprise.context.SessionScoped;
import javax.inject.Inject;
import javax.inject.Named;
@Named
@SessionScoped
public class ServiceTest {
public String test(){
return "hello world";
}
}
내 서블릿은 :
public class Hello extends HttpServlet {
@Inject
private ServiceTest service;
@Override
public void doGet(HttpServletRequest request, HttpServletResponse response)
throws IOException, ServletException {
// Set the response message's MIME type.
response.setContentType("text/html;charset=UTF-8");
// Allocate a output writer to write the response message into the network socket.
PrintWriter out = response.getWriter();
try {
out.println("<!DOCTYPE html>"); // HTML 5
out.println("<html><head>");
out.println("<meta http-equiv='Content-Type' content='text/html; charset=UTF-8'>");
String title = service.test();
out.println("<title>" + title + "</title></head>");
out.println("<body>");
out.println("<h1>" + title + "</h1>"); // Prints "Hello, world!"
out.println("</body></html>");
} finally {
out.close(); // Always close the output writer
}
}
}
난 그냥 그 밖에 NPE ... 아무것도 점점하지거야. 여기
내 톰캣 72016-06-07 22:49:27 DEBUG logging:37 - Logging Provider: org.jboss.logging.Log4jLoggerProvider
2016-06-07 22:49:27 INFO servletWeldServlet:57 - WELD-ENV-001008: Initialize Weld using ServletContainerInitializer
2016-06-07 22:49:27 INFO Version:153 - WELD-000900: 2.3.4 (Final)
2016-06-07 22:49:27 DEBUG Bootstrap:121 - WELD-ENV-000030: Cannot load class using the ResourceLoader: org.jboss.jandex.Index
2016-06-07 22:49:27 DEBUG Bootstrap:121 - WELD-ENV-000030: Cannot load class using the ResourceLoader: org.jboss.jandex.Index
2016-06-07 22:49:27 DEBUG Bootstrap:316 - WELD-ENV-000024: Archive isolation enabled - creating multiple isolated bean archives if needed
2016-06-07 22:49:27 INFO Bootstrap:166 - WELD-ENV-000028: Weld initialization skipped - no bean archive found
juin 07, 2016 10:49:27 PM org.apache.coyote.AbstractProtocol start
INFOS: Starting ProtocolHandler ["http-bio-8080"]
juin 07, 2016 10:49:27 PM org.apache.coyote.AbstractProtocol start
INFOS: Starting ProtocolHandler ["ajp-bio-8009"]
juin 07, 2016 10:49:27 PM org.apache.catalina.startup.Catalina start
INFOS: Server startup in 1127 ms
beans.xml 환경의 시작 흔적이다 (아래 META-INF)
<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://xmlns.jcp.org/xml/ns/javaee">
<scan>
</scan>
</beans>
NPE를 사용하여 스택 추적을 게시하십시오. –
beans.xml을 어딘가에 가지고 있습니까? – temaleva
NPE는 아무런 정보도 제공하지 않고, 주입 된 객체에 대한 호출 만 null입니다. – Seb