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Spring+JSF示例

Posted on 2007-11-13 23:14 诗特林 阅读(5498) 评论(7)  编辑  收藏 所属分类: JSF
 

Spring+JSF示例

JSF本身提供了强大的Bean管理功能。但Spring作为一种轻量的容器，在管理Bean方面有着不可替代的优势，使用起来很方便。在Spring流行的今天，怎么能少了在JSF中整合Spring呢？下面的示例比较简单，但也能清楚的表达如何将JSF+Spring两者互相整合起来。

整个示例，通过输入页面输入特定的字符串，在后面查找此字符串对应的数值，然后展现给客户，如果没有找到则提示错误。



一、       页面

 

1．输入页面：stockInput.jsp

<%@page contentType="text/html"%>
<%@page pageEncoding="UTF-8"%>

<%@taglib prefix="f" uri="http://java.sun.com/jsf/core"%>
<%@taglib prefix="h" uri="http://java.sun.com/jsf/html"%>

<f:view>
    <html>
        <head>
            <title>字符输入页面</title>
        </head>
        <body>
            <h:form id="stockForm">

                <h1>
                    请输入一个字符串，如ABC或DEF或GHI或JKL
                </h1>

                <p>
                    <h:inputText id="stockSymbolInput" value="#{stockBean.symbolName}"
                        required="true">
                    </h:inputText>
                </p>

                <h:commandButton id="stockSubmit" type="submit" value="提交"
                    action="#{stockBean.findStockValue}">
                </h:commandButton>

            </h:form>

        </body>
    </html>
</f:view>

 

2．输出页面：stockOutputFailure.jsp

<%@page contentType="text/html"%>
<%@page pageEncoding="UTF-8"%>

<%@taglib prefix="f" uri="http://java.sun.com/jsf/core"%>
<%@taglib prefix="h" uri="http://java.sun.com/jsf/html"%>

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"
"http://www.w3.org/TR/html4/loose.dtd">

<html>
    <head>
        <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
        <title>取得字符串所对应的值</title>
    </head>
    <body>

        <f:view>
            <h1>
                所输入的字符串
                <h:outputText value="#{stockBean.symbolName}">
                </h:outputText>
                对应的值是
                <h:outputText value="#{stockBean.symbolValue}">
                </h:outputText>
            </h1>
        </f:view>

    </body>
</html>

 

3．错误处理页面：stockOutputFailure.jsp

<%@page contentType="text/html"%>
<%@page pageEncoding="UTF-8"%>

<%@taglib prefix="f" uri="http://java.sun.com/jsf/core"%>
<%@taglib prefix="h" uri="http://java.sun.com/jsf/html"%>

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"
"http://www.w3.org/TR/html4/loose.dtd">

<html>
    <head>
        <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
        <title>错误页面</title>
    </head>
    <body>

        <f:view>
            <h1>
                所查找的字符串
                <h:outputText value="#{stockBean.symbolName}">
                </h:outputText>
                不存在，请再次查找!
            </h1>
        </f:view>

    </body>
</html>

 

 

二、       后台处理Bean

 StockValueFetcher.java

package com.sterning.springjsf;

import java.util.*;

public class StockValueFetcher {

    private Map<String, String> stockSymbolsAndValues;

    private String symbolName;
    private String symbolValue;

    public StockValueFetcher() {
        stockSymbolsAndValues = new HashMap<String, String>();
        stockSymbolsAndValues.put("ABC", "10");
        stockSymbolsAndValues.put("DEF", "20");
        stockSymbolsAndValues.put("GHI", "30");
        stockSymbolsAndValues.put("JKL", "40");
    }

    public String getSymbolName() {
        return symbolName;
    }

    public void setSymbolName(String symbolName) {
        this.symbolName = symbolName;
    }

    public String getSymbolValue() {
        return symbolValue;
    }

    public void setSymbolValue(String symbolValue) {
        this.symbolValue = symbolValue;
    }

    public String findStockValue(){
        boolean symbolFound = stockSymbolsAndValues.containsKey(symbolName);
        if (symbolFound){
            symbolValue = stockSymbolsAndValues.get(symbolName);
            return "stockOutputSuccess";
        }else{
            return "stockOutputFailure";
        }
    }
}

    

三、       配置文件

1．WEB-INF/faces-config.xml

<?xml version='1.0' encoding='UTF-8'?>

<faces-config version="1.2" 
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">

<application>
    <variable-resolver>
        org.springframework.web.jsf.DelegatingVariableResolver
    </variable-resolver>
</application>

<!--  下面的代码在没有使用Spring时起一样的作用
<managed-bean>
    <managed-bean-name>stockBean</managed-bean-name>
        <managed-bean-class>
            com.sterning.springjsf.StockValueFetcher
        </managed-bean-class>
    <managed-bean-scope>request</managed-bean-scope>    
</managed-bean>
-->
<navigation-rule>
    <description>Navigation from the hello page.</description>
    <from-view-id>/stockInput.jsp</from-view-id>
    <navigation-case>
        <from-outcome>stockOutputSuccess</from-outcome>
        <to-view-id>/stockOutputSuccess.jsp</to-view-id>
    </navigation-case>
    <navigation-case>
        <from-outcome>stockOutputFailure</from-outcome>
        <to-view-id>/stockOutputFailure.jsp</to-view-id>
    </navigation-case>    
</navigation-rule>

</faces-config> 

 

注意我使用中文注释的地方。

 

2．WEB-INF/applicationContext.xml

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE beans PUBLIC "-//SPRING//DTD BEAN//EN"
"http://www.springframework.org/dtd/spring-beans.dtd">

<beans>

<bean id="stockBean"
class="com.sterning.springjsf.StockValueFetcher">
</bean>
 

 3．WEB-INF/web.xml

<?xml version="1.0" encoding="UTF-8"?>
<web-app version="2.5" 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-app_2_5.xsd">

    <listener>
        <listener-class>
            org.springframework.web.context.ContextLoaderListener
        </listener-class>
    </listener>

    <context-param>
        <param-name>contextConfigLocation</param-name>
        <param-value>/WEB-INF/applicationContext.xml</param-value>
    </context-param>

    <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>

    <session-config>
        <session-timeout>30</session-timeout>
    </session-config>

    <welcome-file-list>
        <welcome-file>faces/stockInput.jsp</welcome-file>
    </welcome-file-list>
</web-app>

 


 

参考文献：http://www.javabeat.net/articles/2007/10/integrating-spring-and-jsf/


评论

# re: Spring+JSF示例[未登录]  回复  更多评论   

2007-11-14 08:56 by 阿蜜果
蛮好的例子，多谢了，LZ

# re: Spring+JSF示例  回复  更多评论   

2007-11-14 13:17 by BeanSoft
不错! 收藏了!

# re: Spring+JSF示例  回复  更多评论   

2007-12-13 20:27 by OpenBund
有沒有連接mysql進行查詢並顯示數據的代碼

# re: Spring+JSF示例  回复  更多评论   

2008-06-25 09:56 by ddd
我从你的代码好像找不到spring管理bean的地方

# re: Spring+JSF示例  回复  更多评论   

2008-08-29 15:28 by young_suse
在spring配置文件里没有指定Bean的有效范围request

# re: Spring+JSF示例  回复  更多评论   

2011-06-29 20:22 by zlu
写的不错

# re: Spring+JSF示例  回复  更多评论   

2014-08-29 10:50 by junjielee
faces-config.xml没有managed-bean？？？

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