JSF浠VC妯″紡涓哄熀紜錛屼笌Struts涓嶅悓錛孞SF鐨勭洰鏍囨槸甯屾湜浠ヤ竴涓笌Swing鐩哥被浼肩殑鏂瑰紡鏉ュ紑鍙戠綉欏碉紝鍥犳錛屼粠JSF鐨勭粨鏋勫浘褰撲腑錛屼粬鐨勬牳蹇冩蹇典笉鏄〉闈紝鑰屾槸鎺т歡鏍戯紝涔熷氨鏄錛屽綋鐢ㄦ埛鎻愪氦涓涓姹傛椂錛孞SF浼氬厛灝嗛〉闈笂鐨勭粍浠跺厛杞崲涓轟笌Swing褰撲腑綾諱技鐨勶紝鐢卞鍣ㄥ拰鎺т歡緇勬垚鐨勬帶浠舵爲錛岀劧鍚庢暟鎹拰浜嬩歡琚緗埌瀵瑰簲鐨勬帶浠朵笂錛岀劧鍚庝互涓縐嶄笌Swing綾諱技鐨勬柟寮忥紝鏉ュ鐞嗗悗緇殑璇鋒眰銆傛帶浠舵爲鏄暣涓狫SF鐨勬牳蹇冿紝鎵鏈夊叾浠栫殑涓鍒囦竴鍒囬兘鏄洿緇曠潃榪欐５鎺т歡鏍戝睍寮鐨?
JSF鐨勫鐞嗘牳蹇冩槸鎺т歡鏍戯紝浠栦細鍏堝皢欏甸潰涓婃墍澹版槑鐨勬帶浠惰漿鎹負涓媯墊帶浠舵爲錛屽悗緇殑鎿嶄綔灝嗗湪榪欓鎺т歡鏍戜笂榪涜銆備負浜嗘彁楂樻ц兘錛岀郴緇熶細涓轟箣鍓嶇敓鎴愮殑鎺т歡鏍戞彁渚涚紦瀛樸俁estore View鐨勫伐浣滃氨鏄湪緙撳瓨褰撲腑鏌ユ壘鏄惁瀛樺湪涔嬪墠宸茬粡鐢熸垚濂界殑鎺т歡鏍戯紝濡傛灉娌℃湁錛屽垯鏍規嵁欏甸潰鐨勫唴瀹癸紝閲嶆柊鐢熸垚銆?
瀵煎叆鍖咃細
* jsf-impl.jar * jsf-api.jar * commons-digester.jar * commons-collections.jar * commons-beanutils.jar * jstl.jar * standard.jar web.xml閰嶇疆
<?xml version="1.0" encoding="ISO-8859-1"?> <web-app xmlns="http://java.sun.com/xml/ns/j2ee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd" version="2.4"> <description> JSF Demo </description> <display-name>JSF Demo</display-name> <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> <welcome-file-list> <welcome-file>index.html</welcome-file> </welcome-file-list> </web-app> 瀹氫箟涓涓猨avabean
package onlyfun.caterpillar;
public class UserBean {
private String name;
public void setName(String name) {
this.name = name;
}
public String getName() {
return name;
}
}
瀹氫箟涓涓?WEB-INF/faces-config.xml鍍弒truts涓殑struts-config.xml鏂囦歡涓鏍鳳紝瀹炵幇璺寵漿錛?br />
<?xml version="1.0"?> <!DOCTYPE faces-config PUBLIC "-//Sun Microsystems, Inc.//DTD JavaServer Faces Config 1.0//EN" "http://java.sun.com/dtd/web-facesconfig_1_0.dtd"> <faces-config> <navigation-rule> <from-view-id>/pages/index.jsp</from-view-id> <navigation-case> <from-outcome>login</from-outcome> <to-view-id>/pages/welcome.jsp</to-view-id> </navigation-case> </navigation-rule> <managed-bean> <managed-bean-name>user</managed-bean-name> <managed-bean-class> onlyfun.caterpillar.UserBean </managed-bean-class> <managed-bean-scope>session</managed-bean-scope> </managed-bean> </faces-config>index.jsp
<%@taglib uri="http://java.sun.com/jsf/core" prefix="f" %> <%@taglib uri="http://java.sun.com/jsf/html" prefix="h" %> <%@page contentType="text/html;charset=Big5"%> <html> <head> <title>絎竴涓狫SF紼嬪簭</title> </head> <body> <f:view> <h:form> <h3>璇瘋緭鍏ユ偍鐨勫悕縐?/span></h3> 鍚嶇О: <h:inputText value="#{user.name}"/><p> <h:commandButton value="閫佸嚭" action="login"/> </h:form> </f:view> </body> </html>
welcome.jsp
<%@ taglib uri="http://java.sun.com/jsf/core" prefix="f" %> <%@ taglib uri="http://java.sun.com/jsf/html" prefix="h" %> <%@page contentType="text/html;charset=Big5"%> <html> <head> <title>絎竴涓狫SF紼嬪簭</title> </head> <body> <f:view> <h:outputText value="#{user.name}"/> 鎮ㄥソ錛?br /> <h3>嬈㈣繋浣跨敤 JavaServer Faces錛?/span></h3> </f:view> </body> </html>
鍦板潃鏍忚闂湴鍧錛?a href="http://localhost:8080/jsfDemo/pages/index.faces">http://localhost:8080/jsfDemo/pages/index.faces
]]>
璁稿JSF鍒濆鑰?鍦ㄨ繍琛孞SF鏃?閫氬父浼氶亣鍒癹avax.servlet.jsp.JspException: Cannot find FacesContext 榪欎釜閿欒,浣嗙▼搴忚繕姝ｅ父榪愯.
鍑虹幇榪欑鎯呭喌鏃?鏈変笁縐嶈В鍐蟲柟妗?
1.褰撲綘鐨勯欏墊枃浠舵槸鍛藉悕涓篿ndex.jsp,鍦ㄨ繖涓枃浠墮噷鐢ㄥ埌JSF.鍗寵鏂囦歡灞炰簬JSF鏂囦歡.鍦↗2EE閲岄粯璁ょ殑鍚姩鏂囦歡鏄?index.jsp鏂囦歡.鍥犳,褰撳惎鍔ㄧ▼搴忔椂,浼氬璇ユ枃浠惰繘琛屼竴浜涙搷浣?鍙槸JSF鏂囦歡宸插湪faces-config.xml鏃跺凡鏄犲皠涓?.faces鎴?.jsf浜?閭ｄ箞紼嬪簭灝變細鎶涘嚭javax.servlet.jsp.JspException: Cannot find FacesContext閿欒.浣嗙▼搴忎粛鐒跺彲浠ヨ繍琛岀殑.
瑙ｅ喅鏂規硶:鍦╳eb.xml鏂囦歡閲屽姞鍏ユ垨鑰呬慨鏀規垚榪欐牱:
<welcome-file-list>
<welcome-file>index.faces</welcome-file>
</welcome-file-list>
榪欒欏圭殑welcome-file鍐呭鏀規垚index.faces灝辨病浜嬩簡.
2.灝唅ndex.jsp榪欎釜JSF鏂囦歡鏀規垚home.jsp,鐒跺悗,鏂板緩涓涓猧ndex.jsp鏂囦歡,鍐呭濡備笅:
<html> <head></head><body> <jsp:forward page="home.faces" /></body></html>
3.灝唅ndex.jsp榪欎釜JSF鏂囦歡鐩存帴鏀規垚home.jsp,鍗充笉涓簑elcome-file鏂囦歡.鍚姩鏃朵笉浼氭湁浠諱綍閿欒鐨?褰撶劧浣犵殑index.jsp涓嶈兘涓篔SF鏂囦歡.鍥犱負鐩存帴璋冪敤JSF欏甸潰鑰屼笉鏄嬌鐢‵aces Servlet鏄犲皠.灝變細鍑洪敊.
涓鑸儏鍐典笅,鏄洜涓轟綘鐩存帴璋冪敤JSF欏甸潰鑰屼笉鏄嬌鐢‵aces Servlet鏄犲皠閫犳垚鐨?
Faces Servlet mapping鍦╳eb.xml鏂囦歡涓厤緗?鍙互琚厤緗負 a suffix mapping or a prefix mapping.
Example of suffix mapping:
<servlet-mapping> <servlet-name>Faces Servlet</servlet-name> <url-pattern>*.jsf</url-pattern> </servlet-mapping>
Example of prefix mapping:
<servlet-mapping> <servlet-name>Faces Servlet</servlet-name> <url-pattern>/faces/*</url-pattern> </servlet-mapping>
鍥犳, 濡傛灉浣犳湁涓涓狫SF欏甸潰,鏄綅浜庢牴鐩綍鐨?index.jsp 鍦? suffix mapping鐨勬儏鍐典笅,璁塊棶瀹冪殑URL搴旇鏄?br />
http://hostname/appname/index.jsf
濡傛灉浣犱嬌鐢ㄤ笅闈㈢殑URL:
http://hostname/appname/index.jsp
鍒?"javax.servlet.ServletException: Cannot find FacesContext" exception 浼氬嚭鐜?
鍦?prefix mapping鐨勬儏鍐典笅,URL搴旇鏄?:
http://hostname/appname/faces/index.jsp
涓轟簡閬垮厤璇ラ棶棰?浣犲彲浠ユ妸浣犵殑index.jsp璇ヤ負home.jsp, 鑰屾妸index.jsp鐨勫唴瀹規敼涓?:
<html> <head></head><body> <jsp:forward page="home.jsf" /></body></html>
涓婇潰鐨勭ず渚嬫槸浣跨敤 *.jsf 鍚庣紑mapping
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