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我正在嘗試使用Jetty將其恢復到工作狀態的舊項目Spring Spring，並且它使用JSF 1.2，但我並不十分熟悉它。它也有我想要擺脫的ibm taglib庫，但我認爲這個問題是我錯過了庫的一部分，所以暫時我將它們添加到了項目中。JSF 1.2不能在JSP頁面中工作
我有和主要問題，因爲我填充用戶憑據（登錄&密碼）的頁面，控制器接收它們爲空值出於某種原因。感覺實際上我的登錄頁面內的所有＃{}都沒有註冊到JSF。
確切的錯誤是
javax.faces.FacesException：＃ {aaController.login}：顯示java.lang.NullPointerException
對於依賴部分我有JSF的API，JSF -impl，jsf-ibm，用於jsf-libaries的odc-jsf。
我的web.xml文件看起來像這樣：
<context-param>
<param-name>com.ibm.ws.jsf.JSP_UPDATE_CHECK</param-name>
<param-value>true</param-value>
</context-param>
<context-param>
<param-name>com.ibm.ws.jsf.LOAD_FACES_CONFIG_AT_STARTUP</param-name>
<param-value>true</param-value>
</context-param>
<context-param>
<param-name>javax.faces.STATE_SAVING_METHOD</param-name>
<param-value>server</param-value>
</context-param>
<context-param>
<param-name>javax.faces.CONFIG_FILES</param-name>
<param-value>/WEB-INF/faces-config.xml</param-value>
</context-param>
<context-param>
<param-name>javax.faces.DEFAULT_SUFFIX</param-name>
<param-value>.jsp</param-value>
</context-param>
<context-param>
<param-name>com.ibm.faces.DISABLE_JWL_MULTIPART_CONTEXT</param-name>
<param-value>false</param-value>
</context-param>
<context-param>
<param-name>com.ibm.faces.RESOURCE_EXPIRE_MS</param-name>
<param-value>31536000000</param-value>
</context-param>
<context-param>
<param-name>com.ibm.faces.DATETIME_ASSIST_STRICTNESS</param-name>
<param-value>1</param-value>
</context-param>
<context-param>
<param-name>com.ibm.faces.NUMBER_ASSIST_STRICTNESS</param-name>
<param-value>1</param-value>
</context-param>
<context-param>
<param-name>com.ibm.faces.USE_UNENCODED_CONTEXT_PATH</param-name>
<param-value></param-value>
</context-param>
<context-param>
<param-name>com.ibm.faces.JS_RESOURCE_SERVLET_CACHE</param-name>
<param-value>false</param-value>
</context-param>
<context-param>
<param-name>com.ibm.faces.ENCODING_MAPPING</param-name>
<param-value>converter.properties</param-value>
</context-param>
<context-param>
<param-name>com.ibm.faces.USE_HXCLIENT_FULL</param-name>
<param-value>false</param-value>
</context-param>
<context-param>
<param-name>com.ibm.faces.MAX_REQUEST_CONTENT_SIZE</param-name>
<param-value>0</param-value>
</context-param>
<context-param>
<param-name>com.sun.faces.numberOfLogicalViews</param-name>
<param-value>100</param-value>
</context-param>
<context-param>
<param-name>com.sun.faces.numberOfViewsInSession</param-name>
<param-value>100</param-value>
</context-param>
<context-param>
<param-name>com.sun.faces.displayConfiguration</param-name>
<param-value>false</param-value>
</context-param>
<listener>
<listener-class>com.sun.faces.config.ConfigureListener</listener-class>
</listener>
<filter>
<display-name>AaFilter</display-name>
<filter-name>AaFilter</filter-name>
<filter-class>orgmanager.AaFilter</filter-class>
<init-param>
<param-name>loginpage</param-name>
<param-value>/orgmanagerWeb/faces/Login.jsp</param-value>
</init-param>
<init-param>
<param-name>logoutpage</param-name>
<param-value>/orgmanagerWeb/faces/Logout.jsp</param-value>
</init-param>
</filter>
<filter-mapping>
<filter-name>AaFilter</filter-name>
<url-pattern>/faces/Jsp/*</url-pattern>
</filter-mapping>
<servlet>
<servlet-name>Faces Servlet</servlet-name>
<servlet-class>javax.faces.webapp.FacesServlet</servlet-class>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>Faces Servlet</servlet-name>
<url-pattern>/faces/*</url-pattern>
</servlet-mapping>
<servlet-mapping>
<servlet-name>Faces Servlet</servlet-name>
<url-pattern>*.faces</url-pattern>
</servlet-mapping>
<welcome-file-list>
<welcome-file>index.html</welcome-file>
<welcome-file>index.htm</welcome-file>
<welcome-file>index.jsp</welcome-file>
<welcome-file>default.html</welcome-file>
<welcome-file>default.htm</welcome-file>
<welcome-file>default.jsp</welcome-file>
</welcome-file-list>
<jsp-config>
<taglib>
<taglib-uri>/WEB-INF/struts-tiles.tld</taglib-uri>
<taglib-location>/WEB-INF/struts-tiles.tld</taglib-location>
</taglib>
</jsp-config>
<error-page>
<error-code>500</error-code>
<location>/error.jsp</location>
</error-page>
<jsp-config>
<taglib>
<taglib-uri>http://www.ibm.com/jsf/html_extended</taglib-uri>
<taglib-location>/WEB-INF/tld/html_extended.tld</taglib-location>
</taglib>
</jsp-config>
faces-config.xml中的重要部分看起來像這樣：
<faces-config xmlns="http://java.sun.com/xml/ns/javaee"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-facesconfig_1_2.xsd"
version="1.2">
<application>
<message-bundle>Messages</message-bundle>
<state-manager>com.ibm.faces.application.DevelopmentStateManager</state-manager>
<property-resolver>com.ibm.faces.databind.SelectItemsPropResolver</property-resolver>
<variable-resolver>com.ibm.faces.databind.SelectItemsVarResolver</variable-resolver>
</application>
<factory>
<faces-context-factory>com.ibm.faces.context.AjaxFacesContextFactory</faces-context-factory>
<render-kit-factory>com.ibm.faces.renderkit.AjaxRenderKitFactory</render-kit-factory>
</factory>
<managed-bean>
<managed-bean-name>aaController</managed-bean-name>
<managed-bean-class>orgmanager.aaController</managed-bean-class>
<managed-bean-scope>session</managed-bean-scope>
<managed-property>
<property-name>role</property-name>
<property-class>java.lang.String</property-class>
<value>INTERNAL</value>
</managed-property>
</managed-bean>
<navigation-rule>
<from-view-id>/Login.jsp</from-view-id>
<navigation-case>
<from-outcome>ok</from-outcome>
<to-view-id>/Jsp/ManagerFrontpage.jsp</to-view-id>
<redirect />
</navigation-case>
</navigation-rule>
<navigation-rule>
<navigation-case>
<from-action>#{aaController.logout}</from-action>
<from-outcome>ok</from-outcome>
<to-view-id>/Logout.jsp</to-view-id>
<redirect />
</navigation-case>
</navigation-rule>
我的Login.jsp看起來是這樣的加標籤
<%@ taglib uri="http://java.sun.com/jsf/core" prefix="f" %>
<%@ taglib uri="http://www.ibm.com/jsf/html_extended" prefix="hx"%>
<%@ taglib uri="http://java.sun.com/jsf/html" prefix="h" %>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<HTML>
<HEAD>
<META http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
<META name="GENERATOR" content="IBM Software Development Platform">
<META http-equiv="Content-Style-Type" content="text/css">
<LINK href="theme/Master.css" rel="stylesheet" type="text/css">
<TITLE>Organisation Manager</TITLE>
<LINK rel="stylesheet" href="theme/standardiwsadpan.css"
type="text/css">
<LINK rel="stylesheet" type="text/css" href="theme/stylesheet.css"
title="Style">
</HEAD>
<f:view>
<BODY>
<h:form styleClass="form" id="loginform">
<TABLE border="0" class="SisaankirjausTaulukko">
<TBODY>
<TR>
<TD colspan="2" align="center" class="Mustalihavoitu">Organisation manager</TD>
</TR>
<TR>
<TD colspan="2" height="5"><IMG border="0" src="kuvat/tyhja.gif"></TD>
</TR>
<TR>
<TD class="Mustalihavoitu">Login</TD>
<TD><h:inputText styleClass="inputText" tabindex="1" id="kayttajatunnus" size="8"
value="#{aaController.loginView.login}"></h:inputText></TD>
</TR>
<TR>
<TD class="Mustalihavoitu">Password</TD>
<TD><h:inputSecret styleClass="inputText" tabindex="2" id="password" size="8"
value="#{aaController.loginView.password}"></h:inputSecret></TD>
</TR>
<TR>
<TD colspan="2" height="5"><IMG border="0" src="kuvat/tyhja.gif"></TD>
</TR>
<TR>
<TD colspan="2" align="right"><hx:commandExButton type="submit"
value="Sign in" styleClass="submit-button90"
id="button1" action="#{aaController.login}"
tabindex="3"></hx:commandExButton></TD>
</TR>
</TBODY>
</TABLE>
</h:form>
</BODY>
我的控制器看起來像這樣：
public class AaController extends BaseController {
public static final int ROLE_INTERNAL = 1;
public static final int ROLE_EXTERNAL = 2;
private loginView loginView = new loginView();
private int role;
public String login() throws OrgHallintaException {
String result = null;
AaFasadi aaFasadi = new AaFasadi();
log.info("Loggin in");
if (aaFasadi.login(loginView.getLogin(), loginView.getPassword())) {
if (aaFasadi.getEnviroment().trim().equals("PRODUCTION")) {
loginView.setEnviroment(" ");
} else {
loginView.setEnviroment(aaFasadi.getEnviroment());
}
result = "ok";
} else {
result = "error";
}
return result;
}
public String logout() {
AaFasadi aaFasadi = new AaFasadi();
aaFasadi.logout();
return "ok";
}
public loginView getloginView() {
return loginView;
}
public Kayttaja getUser() {
return AaFasadi.getUser();
}
}
和控制器中調用的類看起來像這樣
public class AaFasadi {
private String enviroment="";
private static final String USER_SESSION_KEY = "orgmanager.User";
public static User getUser() {
ServletRequest req = (ServletRequest) FacesContext.getCurrentInstance().getExternalContext().getRequest();
return getUser(req);
}
public static User getUser(ServletRequest req) {
HttpServletRequest request = (HttpServletRequest) req;
User user = (User) request.getSession(true).getAttribute(USER_SESSION_KEY);
return user;
}
public boolean login(String LoginName, String password) throws OrgHallintaException {
User user = null;
try {
PersonelLoginTask personelLoginTask = new PersonelLoginTask();
PersonelLoginView personelLoginView = toimihenkiloSisaankirjausTehtava.execute(LoginName.toUpperCase(), password);
if (personelLoginView != null) {
if (personelLoginView.getEnviroment().trim().equals("PRODUCTION"))
personelLoginView.setEnviroment(" ");
User = new DefaultUserImpl(personelLoginView);
Enviroment = personelLoginView.getEnviroment();
}
} catch (TehtavanHallintaException e) {
System.out.println("User " + Usertunnus + " Login failed " + e);
}
if (User != null) {
ServletRequest req = (ServletRequest) FacesContext.getCurrentInstance().getExternalContext().getRequest();
HttpServletRequest request = (HttpServletRequest) req;
request.getSession(true).setAttribute(User_SESSION_KEY, User);
return true;
} else {
return false;
}
}
public void logout() {
ServletRequest req = (ServletRequest) FacesContext.getCurrentInstance().getExternalContext().getRequest();
HttpServletRequest request = (HttpServletRequest) req;
request.getSession(true).removeAttribute(User_SESSION_KEY);
request.getSession().invalidate();
}
public String getEnviroment() {
return enviroment;
}
public void setEnviroment(String ymparisto) {
this.enviroment = enviroment;
}
}
由於某種原因，我的Login.jsp頁面aaController.loginView.login & aaController.loginView.password根本不起作用，它們返回空值，我不知道爲什麼。 loginView在它的類中有正確的Get和Set方法。我的JSF配置有問題嗎？
我loginview看起來像這樣
public class loginView extends BaseView {
private String login;
private String password;
private String Enviroment;
private Date date = new Date(System.currentTimeMillis());
public String getlogin() {
return login;
}
public void setlogin(String login) {
this.login = login;
}
public String getpassword() {
return password;
}
public void setpassword(String password) {
this.password = password;
}
public String getEnviroment() {
return Enviroment;
}
public void setEnviroment(String Enviroment) {
this.Enviroment = Enviroment;
}
public void setDate(Date date) {
this.date = date;
}
}
你的bean的範圍是什麼？看起來像'loginView'類嗎？你可以在bean中使用兩個單獨的字段來登錄，而不是使用loginView類嗎？ – Omar
嗨奧馬爾。我添加了loginView來顯示。 aaController的範圍是Session。我應該改變它嗎？ – Oliver
我也有這個問題，當我進入Login.jsp頁面的登錄輸入字段的值「＃{aaController.loginView.login}」顯示在字段上。這是否應該正常發生？ – Oliver