Question

大家好，感谢您的帮助。我需要将bean中的当前值返回给jsf。

JSF（示例）

<!-- InputText USERNAME  -->
        <h:outputText style="font-size:12px;font-weight:bold;" value="Username"></h:outputText>
        <h:inputText a:placeholder="Enter user.." id="username" value="#{regBean.username}" required="true"></h:inputText>
        <h:outputText value="&lt;br/&gt;" escape="false" />
<!-- COMMANDBUTTON SEND -->
        <p:commandButton update=":dialogConf" style="font-size:10px;width:68px;height:32px;margin-left:70px;" type="submit" value="Sign Up" icon="ui-icon-arrowreturnthick-1-e"  styleClass="botonesR"
        onerror="PF('errorDlg').show();" oncomplete="PF('confirmation').show();PF('registration').hide();"
        action="#{regBean.doActionReg}" ajax="true">
        </p:commandButton>

Bean（示例）

public void insertNewUser(){

    Connection conn = null;
    PreparedStatement pStatement = null;
    String user = this.getUsername();
    String SQL = "INSERT INTO USER"
            + "(USERNAME)VALUES"
            + "(?)";
    try {
        conn = getdbConnection();
        pStatement = conn.prepareStatement(SQL);
        pStatement.setString(1, user);
        //Execute insertSQL
        pStatement.executeUpdate();
        System.out.println("User:" + user);
        System.out.println("Record is inserted into USUARIOS table");

    }catch (SQLException e){
        System.out.println(e.getMessage());
    }finally{
        try{
            if (pStatement!=null){
                pStatement.close();
            }
            if (conn!=null){
                conn.close();
            }
        }catch(SQLException e){
            System.out.println(e.getMessage());
        }
    }
}

直到这里一切正常，正确保存好记录。现在我想在插入查询

之后在确认对话框中看到当前用户

相同的JSF

  <p:dialog header="Confirmation" showEffect="explode" id="dialogConf" widgetVar="confirmation" hideEffect="explode" height="125px" width="378px" modal="true" resizable="false">
    <h:outputText value="User ( #{regBean.username}) is now in our db"></h:outputText>
 </p:dialog>

这里＃{regBean.username}没有显示用户名的当前值。

Answer 1

解决了只是正确添加更新

<!-- COMMANDBUTTON SEND -->
    <p:commandButton update="userReg" style="font-size:10px;width:68px;height:32px;margin-left:70px;" type="submit" value="Sign Up" icon="ui-icon-arrowreturnthick-1-e"  styleClass="botonesR"
    onerror="PF('errorDlg').show();" oncomplete="PF('confirmation').show();PF('registration').hide();"
    action="#{regBean.doActionReg}">
    </p:commandButton>

我显示结果

  <p:dialog header="Confirmation" showEffect="explode" id="dialogConf" widgetVar="confirmation" hideEffect="explode" height="125px" width="378px" modal="true" resizable="false">
<h:outputText id="userReg" value="User ( #{regBean.username}) is now in our db"></h:outputText>

JSF从bean获取当前值

1 个答案: