无法注入javax.mail.Session,jboss 7.1.1

时间:2013-08-08 10:57:10

标签: java jsp java-ee dependency-injection jboss7.x

Jboss无法将smtp服务器配置注入Session字段。

我编辑了standalone.xml文件:

<mail-session jndi-name="java:jboss/mail/MyMail">
        <smtp-server outbound-socket-binding-ref="mail-smtp-my-mail">
               <login name="login" password="passwd"/>
        </smtp-server>
</mail-session>
...
<socket-binding-group ...>
    <outbound-socket-binding name="mail-smtp-my-mail">
        <remote-destination host="my-stmp-server" port="2587"/>
    </outbound-socket-binding>

我的班级有会话字段:

@Stateless
public class MailHelper {

    @Resource(mappedName = "java:jboss/mail/MyMail")
    private Session mailSession;

    public String send() {
        MimeMessage m = new MimeMessage(mailSession);
        try {
            m.setRecipients(Message.RecipientType.TO, "g@gmail.com");
            Transport.send(m);
        } catch (MessagingException e) {
            e.printStackTrace();
        }
        return "...";
    }
}

邮件助手在jsp页面中使用:

<%@page contentType="text/html" pageEncoding="UTF-8"%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"
    "http://www.w3.org/TR/html4/loose.dtd">

<html>
    <head>
    <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
    <title>JSP Page</title>
</head>
<body>
    <h1>Hello World!</h1>
    <jsp:useBean id="mailHelper" class="com.MailHelper" scope="session"/>
    <%= mailHelper.send()%>
</body>

每次我在mailSession字段中都为null。有什么问题?

1 个答案:

答案 0 :(得分:1)

正确配置MailSession和出站套接字。在SLSB MailHandler中,在java:global / YourProj / MailHelper!youpackage.MailHelper等下可用,必须有一个注入的会话。在server.log中应该有类似的东西:

java:global/TestJSP/MailHelper!example.MailHelper
java:app/TestJSP/MailHelper!example.MailHelper
java:module/MailHelper!example.MailHelper
java:global/TestJSP/MailHelper
java:app/TestJSP/MailHelper
java:module/MailHelper

否则您的项目将无法部署。 但是mailHelper在org.apache.jasper.servlet.JspServlet的Context中是JavaBean而不是SLSB。你那里没有DI​​。但是你可以用这种方式手动查找javax.mail.Session

 public String send(){
    try {
        Context c = new InitialContext();
        session = (Session)c.lookup("java:jboss/mail/MyMail");
        System.out.println();
    } catch (Exception e) {
        e.printStackTrace();
    }
    return "";
}

或者在标准构造函数中实例化它:

  public MailHelper() {
   ini();
}

void ini(){
    try {
        Context c = new InitialContext();
        session = (Session)c.lookup("java:jboss/mail/MyMail");          
    } catch (Exception e) {
        e.printStackTrace();
    }
}