Tomcat Can'；不要做焊缝扫描豆_Tomcat_Servlets_Cdi_Weld

Tomcat Can'；不要做焊缝扫描豆

tomcat servlets

Tomcat Can'；不要做焊缝扫描豆,tomcat,servlets,cdi,weld,Tomcat,Servlets,Cdi,Weld,我一定错过了什么，但我不能让焊接工作！这是一个简单的webapp，一个servlet，一个服务（我想把它注入servlet）以下是文件： pom.xml <dependency> <groupId>org.jboss.weld.servlet</groupId> <artifactId>weld-servlet-core</artifactId> <version>

我一定错过了什么，但我不能让焊接工作！这是一个简单的webapp，一个servlet，一个服务（我想把它注入servlet）

以下是文件：

pom.xml

    <dependency>
        <groupId>org.jboss.weld.servlet</groupId>
        <artifactId>weld-servlet-core</artifactId>
        <version>2.3.4.Final</version>
    </dependency>

我的servlet：

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
          }
       }
}

beans.xml（在META-INF下）

2016-06-07 22:49:27信息引导：166-WELD-ENV-000028：已跳过焊接初始化-未找到bean存档

这意味着Weld在您的战争中没有找到任何bean存档。注意，在战争中，

beans.xml

必须命名为

WEB-INF/beans.xml

或

WEB-INF/classes/META-INF/beans.xml

（另请参见规范）。我猜您有

META-INF/beans.xml

2016-06-07 22:49:27信息引导：166-WELD-ENV-000028：已跳过焊接初始化-未找到bean存档

这意味着Weld在您的战争中没有找到任何bean存档。注意，在战争中，

beans.xml

必须命名为

WEB-INF/beans.xml

或

WEB-INF/classes/META-INF/beans.xml

（另请参见规范）。我猜你有

META-INF/beans.xml

请用NPE发布你的堆栈跟踪。你有beans.xml吗？NPE没有提供任何信息，只需调用注入的对象，该对象为空。我已经添加了META-INF中的beans.xml。您是否读到应该将

beans.xml

放在WAR存档的

/META-INF

中？请使用NPE发布堆栈跟踪。您是否在某处有beans.xml？NPE没有提供任何信息，只需调用注入的对象，该对象为空。我已经添加了META-INF中的beans.xml。您是否读到应该将

beans.xml

放在WAR存档的

/META-INF

中？

import javax.enterprise.context.SessionScoped;
import javax.inject.Inject;
import javax.inject.Named;

@Named
@SessionScoped
public class ServiceTest {


    public String test(){
        return "hello world";
    }


}

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
          }
       }
}

2016-06-07 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

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://xmlns.jcp.org/xml/ns/javaee">
    <scan>

    </scan>
</beans>