在我的会话范围管理bean中需要一个来自应用程序范围管理bean的值。不知道该怎么做。看到一个帖子在这里:https://guedebyte.wordpress.com/2012/05/19/accessing-beans-from-java-code-in-xpages-learned-by-reading-the-sourcecode-of-the-extensionlibrary/但我得到一堆错误…我还发现:JSF 2.0从另一个bean访问应用程序范围bean，所以我想也许我需要重新定义我的应用程序bean??完全无能…
我怎样才能做到呢?
下面是应用程序作用域bean的代码:
public class AppConfig implements Serializable {
private static final long serialVersionUID = 2768250939591274442L;
public AppConfig() {
initDefaults();
initFromConfigDoc();
}
// Control the number of entries displayed in the widgets
private int nbWidgetFavorites = 0;
private int nbWidgetMostPopular = 0;
private int nbWidgetToolbox = 0;
// Control the number of entries to display in the What's new view
private int nbWhatsNew = 0;
private String showDetailsWhatsNew = "no";
//controls various search options
private int nbSearchResults = 0;
private int nbMaxSearchResults = 0;
//the home page to use for each language
private String homePageUNID_FR = "";
private String homePageUNID_EN = "";
//application email address to use (webmaster)
// DEV ADDRESS
private String appEmailAddress = "DEVTEAMTEST/DEV@DEVELOPMENTCORP";
// UAT ADDRESS
// PROD ADDRESS
//path to the stats DB
private String statsDB = "";
//application message, if needed
private String systemMessageFR = "";
private String systemMessageEN = "";
//default lang (defined here as session bean will read from the App bean first to
// see if there's a value stored there)
private String defaultLang = "";
//default prov
private String defaultProv = "";
// show Province drop down?
private String showProv = "no";
//various text for "share this link" emails
private String senderEmail = "";
private String senderName = "";
private String appURL = "";
private String emailText = "";
private String clickLinkText = "";
private String emailFooter = "";
private String messageIntro = "";
private String allowRatingModification = "";
/*****************************************************************************/
private void initDefaults() {
// Control the number of entries displayed in the widgets
nbWidgetFavorites = 10;
nbWidgetMostPopular = 10;
nbWidgetToolbox = 10;
nbWhatsNew = 15;
showDetailsWhatsNew = "no";
nbSearchResults = 25;
nbMaxSearchResults = 100;
homePageUNID_FR = "";
homePageUNID_EN = "";
appEmailAddress = "DEVTEAMTEST/DEV@DEVELOPMENTCORP";
statsDB = "belair\xBiblioStats.nsf";
systemMessageFR = "";
systemMessageEN = "";
defaultLang = "FR";
defaultProv = "QC";
showProv = "no";
allowRatingModification = "1";
}
/*****************************************************************************/
public boolean persistToConfigDoc() {
//write content of sessionScope vars to config doc
try {
Database db = ExtLibUtil.getCurrentSession().getCurrentDatabase();
View view = db.getView("AppConfig");
Document doc = view.getFirstDocument();
if(doc == null) {
doc = db.createDocument();
doc.replaceItemValue("form", "AppConfig");
}
doc.replaceItemValue("nbWidgetFavorites", this.nbWidgetFavorites);
doc.replaceItemValue("nbWidgetMostPopular", this.nbWidgetMostPopular);
doc.replaceItemValue("nbWidgetToolbox", this.nbWidgetToolbox);
doc.replaceItemValue("nbWidgetToolbox", this.nbWidgetToolbox);
doc.replaceItemValue("nbWhatsNew", this.nbWhatsNew);
doc.replaceItemValue("showDetailsWhatsNew", this.showDetailsWhatsNew);
doc.replaceItemValue("nbSearchResults", this.nbSearchResults);
doc.replaceItemValue("nbMaxSearchResults", this.nbMaxSearchResults);
doc.replaceItemValue("homePageUNID_FR", this.homePageUNID_FR);
doc.replaceItemValue("homePageUNID_EN", this.homePageUNID_EN);
doc.replaceItemValue("appEmailAddress", this.appEmailAddress);
doc.replaceItemValue("statsDB", this.statsDB);
doc.replaceItemValue("systemMessageFR", this.systemMessageFR);
doc.replaceItemValue("systemMessageEN", this.systemMessageEN);
doc.replaceItemValue("defaultLang", this.defaultLang);
doc.replaceItemValue("defaultProv", this.defaultProv);
doc.replaceItemValue("showProv", this.showProv);
doc.replaceItemValue("senderEmail", this.senderEmail);
doc.replaceItemValue("senderName", this.senderName);
doc.replaceItemValue("appURL", this.appURL);
doc.replaceItemValue("emailText", this.emailText);
doc.replaceItemValue("clickLinkText", this.clickLinkText);
doc.replaceItemValue("emailFooter", this.emailFooter);
doc.replaceItemValue("messageIntro", this.messageIntro);
doc.replaceItemValue("allowRatingModification", this.allowRatingModification);
doc.save();
return true;
} catch (NotesException e) {
// TODO Auto-generated catch block
e.printStackTrace();
return false;
}
}
/*****************************************************************************/
public void initFromConfigDoc() {
try {
Database db = ExtLibUtil.getCurrentSession().getCurrentDatabase();
View view = db.getView("AppConfig");
Document doc = view.getFirstDocument();
if(doc != null) {
//load default values
if(doc.hasItem("nbWidgetFavorites")) {
int tmp = doc.getItemValueInteger("nbWidgetFavorites");
if(tmp > 0) {
this.nbWidgetFavorites = tmp;
}
}
if(doc.hasItem("nbWidgetMostPopular")) {
int tmp = doc.getItemValueInteger("nbWidgetMostPopular");
if(tmp > 0) {
this.nbWidgetMostPopular = tmp;
}
}
if(doc.hasItem("nbWidgetToolbox")) {
int tmp = doc.getItemValueInteger("nbWidgetToolbox");
if(tmp > 0) {
this.nbWidgetToolbox = tmp;
}
}
if(doc.hasItem("nbWhatsNew")) {
int tmp = doc.getItemValueInteger("nbWhatsNew");
if(tmp > 0) {
this.nbWhatsNew = tmp;
}
}
if(doc.hasItem("showDetailsWhatsNew")) {
String tmp = doc.getItemValueString("showDetailsWhatsNew");
this.showDetailsWhatsNew = tmp;
}
if(doc.hasItem("nbSearchResults")) {
int tmp = doc.getItemValueInteger("nbSearchResults");
if(tmp > 0) {
this.nbSearchResults = tmp;
}
}
if(doc.hasItem("nbMaxSearchResults")) {
int tmp = doc.getItemValueInteger("nbMaxSearchResults");
if(tmp > 0) {
this.nbMaxSearchResults = tmp;
}
}
if(doc.hasItem("homePageUNID_FR")) {
String tmp = doc.getItemValueString("homePageUNID_FR");
if(!"".equals(tmp)) {
this.homePageUNID_FR = tmp;
}
}
if(doc.hasItem("homePageUNID_EN")) {
String tmp = doc.getItemValueString("homePageUNID_EN");
if(!"".equals(tmp)) {
this.homePageUNID_EN = tmp;
}
}
if(doc.hasItem("appEmailAddress")) {
String tmp = doc.getItemValueString("appEmailAddress");
if(!"".equals(tmp)) {
this.appEmailAddress = tmp;
}
}
if(doc.hasItem("statsDB")) {
String tmp = doc.getItemValueString("statsDB");
if(!"".equals(tmp)) {
this.statsDB = tmp;
}
}
if(doc.hasItem("systemMessageFR")) {
String tmp = doc.getItemValueString("systemMessageFR");
if(!"".equals(tmp)) {
this.systemMessageFR = tmp;
}
}
if(doc.hasItem("systemMessageEN")) {
String tmp = doc.getItemValueString("systemMessageEN");
if(!"".equals(tmp)) {
this.systemMessageEN = tmp;
}
}
if(doc.hasItem("defaultLang")) {
String tmp = doc.getItemValueString("defaultLang");
if(!"".equals(tmp)) {
this.defaultLang = tmp;
}
}
if(doc.hasItem("defaultProv")) {
String tmp = doc.getItemValueString("defaultProv");
if(!"".equals(tmp)) {
this.defaultProv = tmp;
}
}
if(doc.hasItem("showProv")) {
String tmp = doc.getItemValueString("showProv");
if(!"".equals(tmp)) {
this.showProv = tmp;
}
}
if(doc.hasItem("senderEmail")) {
String tmp = doc.getItemValueString("senderEmail");
if(!"".equals(tmp)) {
this.senderEmail = tmp;
}
}
if(doc.hasItem("senderName")) {
String tmp = doc.getItemValueString("senderName");
if(!"".equals(tmp)) {
this.senderName = tmp;
}
}
if(doc.hasItem("appURL")) {
String tmp = doc.getItemValueString("appURL");
if(!"".equals(tmp)) {
this.appURL = tmp;
}
}
if(doc.hasItem("emailText")) {
String tmp = doc.getItemValueString("emailText");
if(!"".equals(tmp)) {
this.emailText = tmp;
}
}
if(doc.hasItem("clickLinkText")) {
String tmp = doc.getItemValueString("clickLinkText");
if(!"".equals(tmp)) {
this.clickLinkText = tmp;
}
}
if(doc.hasItem("emailFooter")) {
String tmp = doc.getItemValueString("emailFooter");
if(!"".equals(tmp)) {
this.emailFooter = tmp;
}
}
if(doc.hasItem("messageIntro")) {
String tmp = doc.getItemValueString("messageIntro");
if(!"".equals(tmp)) {
this.messageIntro = tmp;
}
}
//allowRatingModification
if(doc.hasItem("allowRatingModification")) {
String tmp = doc.getItemValueString("allowRatingModification");
if(!"".equals(tmp)) {
this.allowRatingModification = tmp;
}
}
}
} catch (NotesException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
/*****************************************************************************/
public int getNbWidgetFavorites() {
return nbWidgetFavorites;
}
public void setNbWidgetFavorites(int nbWidgetFavorites) {
this.nbWidgetFavorites = nbWidgetFavorites;
}
public int getNbWidgetMostPopular() {
return nbWidgetMostPopular;
}
public void setNbWidgetMostPopular(int nbWidgetMostPopular) {
this.nbWidgetMostPopular = nbWidgetMostPopular;
}
public int getNbWidgetToolbox() {
return nbWidgetToolbox;
}
public void setNbWidgetToolbox(int nbWidgetToolbox) {
this.nbWidgetToolbox = nbWidgetToolbox;
}
public void setNbWhatsNew(int nbWhatsNew) {
this.nbWhatsNew = nbWhatsNew;
}
public int getNbWhatsNew() {
return nbWhatsNew;
}
public void setShowDetailsWhatsNew(String showDetailsWhatsNew) {
this.showDetailsWhatsNew = showDetailsWhatsNew;
}
public String getShowDetailsWhatsNew() {
return showDetailsWhatsNew;
}
public int getNbSearchResults() {
return nbSearchResults;
}
public void setNbSearchResults(int nbSearchResults) {
this.nbSearchResults = nbSearchResults;
}
public int getNbMaxSearchResults() {
return nbMaxSearchResults;
}
public void setNbMaxSearchResults(int nbMaxSearchResults) {
this.nbMaxSearchResults = nbMaxSearchResults;
}
public String getHomePageUNID_FR() {
return homePageUNID_FR;
}
public void setHomePageUNID_FR(String homePageUNID_FR) {
this.homePageUNID_FR = homePageUNID_FR;
}
public String getHomePageUNID_EN() {
return homePageUNID_EN;
}
public void setHomePageUNID_EN(String homePageUNID_EN) {
this.homePageUNID_EN = homePageUNID_EN;
}
public String getAppEmailAddress() {
return appEmailAddress;
}
public void setAppEmailAddress(String appEmailAddress) {
this.appEmailAddress = appEmailAddress;
}
public String getSystemMessageFR() {
return systemMessageFR;
}
public void setSystemMessageFR(String systemMessageFR) {
this.systemMessageFR = systemMessageFR;
}
public String getSystemMessageEN() {
return systemMessageEN;
}
public void setSystemMessageEN(String systemMessageEN) {
this.systemMessageEN = systemMessageEN;
}
public void setStatsDB(String statsDB) {
this.statsDB = statsDB;
}
public String getStatsDB() {
return statsDB;
}
public void setDefaultLang(String defaultLang) {
this.defaultLang = defaultLang;
}
public String getDefaultProv() {
return defaultProv;
}
public void setDefaultProv(String defaultPRov) {
this.defaultProv = defaultPRov;
}
public void setShowProv(String showProv) {
this.showProv = showProv;
}
public String getShowProv() {
return showProv;
}
public String getDefaultLang() {
return defaultLang;
}
public String getMessageIntro() {
return messageIntro;
}
public void setMessageIntro(String messageIntro) {
this.messageIntro = messageIntro;
}
public String getSenderEmail() {
return senderEmail;
}
public void setSenderEmail(String senderEmail) {
this.senderEmail = senderEmail;
}
public String getSenderName() {
return senderName;
}
public void setSenderName(String senderName) {
this.senderName = senderName;
}
public String getAppURL() {
return appURL;
}
public void setAppURL(String appURL) {
this.appURL = appURL;
}
public String getEmailText() {
return emailText;
}
public void setEmailText(String emailText) {
this.emailText = emailText;
}
public String getClickLinkText() {
return clickLinkText;
}
public void setClickLinkText(String clickLinkText) {
this.clickLinkText = clickLinkText;
}
public String getEmailFooter() {
return emailFooter;
}
public void setEmailFooter(String emailFooter) {
this.emailFooter = emailFooter;
}
//allowRatingModification
public String getAllowRatingModification() {
return allowRatingModification;
}
public void setAllowRatingModification(String allowRatingModification) {
this.allowRatingModification = allowRatingModification;
}
}
变量解析器遍历所有隐式变量(例如session, database)以及范围变量(例如applicationScope.myVar)。您的bean也可以通过变量解析器从SSJS访问。
所以你可以用:
ExtLibUtil.resolveVariable(FacesContext.getCurrentInstance(), "myAppScopeBean");
这不是对你问题的直接回答…
另一种方法是在applicationScope中设置您想要的值，然后从bean以这种方式访问它。直接访问整个bean是一个不同的答案。
你使用这段代码来获取你的applicationScope的句柄。
FacesContext facesContext = FacesContext.getCurrentInstance();
ExternalContext externalContext = facesContext.getExternalContext();
Map<String, Object> applicationScope = externalContext.getApplicationMap();
然后你有这样的代码来使用它:
String agentLogDB = (String) applicationScope.get("LOGDB");