JSF jsp页面和后台bean传值问题

1:jsf中,后台bean给jsp传值很常见也很容易

例

SearchBean 中：

 

public class SearchBean {
    private String media_name="";
    public String getMedia_name() {
        return media_name;
    }
    public void setMedia_name(String media_name) {
        this.media_name = media_name;
    }

...

}

faces-config.xml文件中配置bean

<managed-bean>
        <managed-bean-name>serach</managed-bean-name>
        <managed-bean-class>admin.SearchBean</managed-bean-class>
        <managed-bean-scope>request</managed-bean-scope>
    </managed-bean>

JSP页面中使用

<h:outputText value="文件名称(必填)：" style="width: 150px" />
        <h:inputText value="#{search.media_name}" style="width:250px;"></h:inputText>

2:jsp向后台bean传值

例

JSP页面中：

<h:commandButton value="上传" actionListener="#{search.uploadFile}" styleClass="button">
              <f:attribute name="attrname1" value="#{visitor.userId}" />
        </h:commandButton>

在bean中：

public void uploadFile(ActionEvent ae) throws Exception{

user_name = (String) ae.getComponent().getAttributes().get("attrname1");

...

}