我認爲我的問題與我的託管Bean構造函數未出現的情況有關。也就是說,如果我在構造函數中放置斷點,則應用程序不會停在斷點處。我在將PrimeFaces數據表映射到我的託管Bean時遇到困難
我得到的標題,但不是在構造函數中添加的行。
這裏是我的代碼:首先,XHTML:
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html xmlns="http://www.w3.org/1999/xhtml"
xmlns:h="http://java.sun.com/jsf/html"
xmlns:f="http://java.sun.com/jsf/core"
xmlns:ui="http://java.sun.com/jsf/facelets"
xmlns:p="http://primefaces.org/ui">
<f:view contentType="text/html">
<h:head>
<f:facet name="first">
<meta content='text/html; charset=UTF-8' http-equiv="Content-Type"/>
<title>LOTTO CHECKER</title>
</f:facet>
</h:head>
<h:body>
<p:layout fullPage="true">
<p:layoutUnit position="north" size="100" resizable="true" closable="true" collapsible="true">
LOTTO CHECKER
</p:layoutUnit>
<p:layoutUnit position="south" size="100" closable="true" collapsible="true">
Footer
</p:layoutUnit>
<p:layoutUnit position="west" size="175" header="Left" collapsible="true" >
</p:layoutUnit>
<p:layoutUnit position="center">
<h:form id="powerBallDrawingForm">
<p:dataTable value="#(lottoCheckerBean.powerBallDrawings}" var="powerBallDrawing" >
<p:column headerText="DATE">
<h:outputText value ="#{powerBallDrawing.drawingDate}"/>
</p:column >
<p:column headerText="BALL 1">
<h:outputText value="#{powerBallDrawing.ball_1}" />
</p:column>
<p:column headerText ="BALL 2">
<h:outputText value="#{powerBallDrawing.ball_2}" />
</p:column>
<p:column headerText ="BALL 3">
<h:outputText value="#{powerBallDrawing.ball_3}" />
</p:column>
<p:column headerText ="BALL 4">
<h:outputText value="#{powerBallDrawing.ball_4}" />
</p:column>
<p:column headerText="BALL 5">
<h:outputText value="#{powerBallDrawing.ball_5}" />
</p:column>
<p:column headerText="POWER BALL">
<h:outputText value="#{powerBallDrawing.powerBall}" />
</p:column>
</p:dataTable>
</h:form>
</p:layoutUnit>
</p:layout>
</h:body>
</f:view>
</html>
現在管理的Bean
package PowerBall_BigBame_Checker;
import java.io.Serializable;
import java.util.ArrayList;
import java.util.List;
import javax.faces.bean.ManagedBean;
import javax.faces.bean.SessionScoped;
@ManagedBean
@SessionScoped
public class LottoCheckerBean implements Serializable {
// Add business logic below. (Right-click in editor and choose
// "Insert Code > Add Business Method")
private List<PowerBallDrawing> powerBallDrawings;
public LottoCheckerBean() {
powerBallDrawings = new ArrayList<PowerBallDrawing>();
powerBallDrawings.add(new PowerBallDrawing("03/16/2013",1,2,3,4,5,6));
}
public List<PowerBallDrawing> getPowerBallDrawings() {
return this.powerBallDrawings;
}
public void setPowerBallDrawings(List<PowerBallDrawing> powerBallDrawings) {
this.powerBallDrawings = powerBallDrawings;
}
}
最後包括該表的行類:
package PowerBall_BigBame_Checker;
import java.io.Serializable;
public class PowerBallDrawing implements Serializable {
private String drawingDate;
private int ball_1;
private int ball_2;
private int ball_3;
private int ball_4;
private int ball_5;
private int powerBall;
public PowerBallDrawing(String drawingDate, int ball_1, int ball_2, int ball_3,
int ball_4, int ball_5, int powerBall) {
this.ball_1 = ball_1;
this.ball_2 = ball_2;
this.ball_3 = ball_3;
this.ball_4 = ball_4;
this.ball_5 = ball_5;
this.powerBall = powerBall;
this.drawingDate = drawingDate;
}
public String getDrawingDate() {
return drawingDate;
}
public void setDrawingDate(String drawingDate) {
this.drawingDate = drawingDate;
}
public int getBall_1() {
return ball_1;
}
public void setBall_1(int ball_1) {
this.ball_1 = ball_1;
}
public int getBall_2() {
return ball_2;
}
public void setBall_2(int ball_2) {
this.ball_2 = ball_2;
}
public int getBall_3() {
return ball_3;
}
public void setBall_3(int ball_3) {
this.ball_3 = ball_3;
}
public int getBall_4() {
return ball_4;
}
public void setBall_4(int ball_4) {
this.ball_4 = ball_4;
}
public int getBall_5() {
return ball_5;
}
public void setBall_5(int ball_5) {
this.ball_5 = ball_5;
}
public int getPowerBall() {
return powerBall;
}
public void setPowerBall(int powerBall) {
this.powerBall = powerBall;
}
}
我懷疑我在某個地方違反了慣例,但我沒有看到它。
將
改爲
擺脫了錯誤,但我仍然不執行構造函數,所以我得到標題但沒有數據。 – 2013-03-18 00:50:41
您拼錯了value屬性:將'
'更改爲'
>:檢查EL表達式必須放在括號中而不是括號中 – skuntsel 2013-03-18 05:38:37
您的託管bean應該被標記爲.... @ManagedBean(name =」lottoCheckerBean「) – rags 2013-03-18 06:37:09