如何在输入文本字段中使用多个值JSF

Question

在我的xhtml中有3个输入字段，计算两个<p:calendar>日期的剩余日期。在下一步中，我想将计算的剩余天数存储到MY DB。

<p:dataTable styleClass="vtable" editable="true" var="user" 
editMode="cell" value="#{userBean.employeeList}"> 
<p:column styleClass="columntd" headerText="#{text['user.startedDate']}"> 
    <p:calendar widgetVar="fromCal" value="#{vacationBean.vacation.beginDate}"> 
<p:ajax event="dateSelect" listener="#{dayDiffBean.fromSelected}" 
     update="diff" /> 
    </p:calendar> 
</p:column> 
<p:column styleClass="columntd" 
headerText="#{text['user.finishedDate']}"> 
<p:calendar widgetVar="toCal" value="#{vacationBean.vacation.endDate}"> 
    <p:ajax event="dateSelect" listener="#{dayDiffBean.toSelected}" 
     update="diff" /> 
    </p:calendar> 
    </p:column> 
    <p:column styleClass="columntd" 
headerText="#{text['employee.remainingdays']}"> 

<p:inputText id="diff" styleClass="daysNumber" 
    value="#{dayDiffBean.diff}" /> 
     </p:column> 
</p:dataTable> 
    <h:commandButton styleClass="sndbutton1" 
value="#{text['employee.send']}" action="#{vacationBean.addVac}"/> 

我以前value="#{dayDiffBean.diff}获取剩余的一天，现在我也想用这样用我vacationbean来remaingday存储到我的分贝：value="#{vacationBean.vacation.balanceDay}"

，但我不能在这样的inputText字段使用2的值：

<p:inputText value="dayDiffBean.diff" value1="vacationBean.vacation.balanceDay"> 

我该如何解决这个问题？

这是我的假期bean代码：

@ManagedBean(name="vacationBean") 
@ViewScoped 
public class VacationBean implements Serializable{ 
    /** 
    * 
    */ 
    private static final long serialVersionUID = 1L; 
    private Date vEndDate; 
    private boolean selected; 
    private Date vStartDate; 
    private Date createdDate; 
    private String isNobody; 
    Requestrelax vacation; 
    Employee e; 
    Calendar javaCalendar = null; 
    private short balanceDay; 
    @EJB 
    VacationLocal vacations; 
    @ManagedProperty(value="#{loginBean.userId}") 
    Integer userId; 

    @EJB 
    EmployeesLocal employees; 
    @PostConstruct 
    public void init(){ 
     System.out.println("0"); 
     //System.out.println("STATrtsg >> . "+ diff.getDiff()); 
     vacation=new Requestrelax(); 
     e=employees.getEmployee(userId); 
     vacation.setEmployee(e); 
     System.out.println("balanday is:"+balanceDay); 
    } 
    public void addVac(){ 
     System.out.println("1"); 
     javaCalendar = Calendar.getInstance(); 
     Date currenDate=Calendar.getInstance().getTime(); 
     vacation.setCreatedDate(currenDate); 
     vacation.setBalanceDay(balanceDay); 
     vacations.addEmployeeVacation(vacation); 
    } 
    public Integer getUserId() { 
     return userId; 
    } 
    public void setUserId(Integer userId) { 
     this.userId = userId; 
    } 
    public Employee getE() { 
     return e; 
    } 
    public void setE(Employee e) { 
     this.e = e; 
    } 
    public Requestrelax getVacation() { 
     return vacation; 
    } 
    public void setVacation(Requestrelax vacation) { 
     this.vacation = vacation; 
    } 
    public Date getvEndDate() { 
     return vEndDate; 
    } 
    public void setvEndDate(Date vEndDate) { 
     this.vEndDate = vEndDate; 
    } 
    public Date getvStartDate() { 
     return vStartDate; 
    } 
    public void setvStartDate(Date vStartDate) { 
     this.vStartDate = vStartDate; 
    } 
    public short getBalanceDay() { 
     return balanceDay; 
    } 
    public void setBalanceDay(short balanceDay) { 
     this.balanceDay = balanceDay; 
    } 
    public Date getCreatedDate() { 
     return createdDate; 
    } 
    public void setCreatedDate(Date createdDate) { 
     this.createdDate = createdDate; 
    } 

    public String getIsNobody() { 
     return isNobody; 
    } 

    public void setIsNobody(String isNobody) { 
     this.isNobody = isNobody; 
    } 

} 

而且daydiffbean代码：

 @ManagedBean(name="dayDiffBean") 

    @SessionScoped 
    public class DayDiffBean implements Serializable { 

/** 
* 
*/ 



private static final long serialVersionUID = 1L; 
private Date from; 

private Date to; 
private String diff=""; 
private final long oneDay=1000*60*60*24; 



public void fromSelected(SelectEvent event){ 
    from=(Date) event.getObject(); 
    calDiff(); 

} 

public void toSelected(SelectEvent event){ 
    to=(Date) event.getObject(); 
    calDiff(); 

} 


public void calDiff(){ 
    if(from==null||to==null){ 
     diff="N/A"; 
     return; 
    } 
    diff=(to.getTime()-from.getTime())/oneDay+""; 
} 
public String getDiff() { 
    return diff; 
} 
public void setDiff(String diff) { 
    this.diff = diff; 
} 
public void setFrom(Date from) { 
    this.from = from; 
} 
public Date getFrom() { 
    return from; 
} 
public Date getTo() { 
    return to; 
} 
public void setTo(Date to) { 
    this.to = to; 
} 



} 

Answer 1

从代码，添加balanceDay您vacationBean的一种方法是通过将DIFF字符串作为参数至addVac()方法（在第二行中通知action）：

<h:commandButton styleClass="sndbutton1" value="#{text['employee.send']}" 
action="#{vacationBean.addVac(dayDiffBean.diff)}"/> 

然后，您VacationBean.addVac()：

// 'diff' is now being passed in as a parameter 
public void addVac(String diff) { 
    System.out.println("1"); 
    javaCalendar = Calendar.getInstance(); 
    Date currenDate=Calendar.getInstance().getTime(); 
    vacation.setCreatedDate(currenDate); 
    vacation.setBalanceDay(balanceDay); 

    // UPDATED 
    // so now you can set balanceDay 
    setBalanceDay(Short.parseShort(diff)); 

    vacations.addEmployeeVacation(vacation); 
}