Spring_1.2.7 与 webwork_2.2.2集成

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Spring_1.2.7 与 webwork_2.2.2集成

1. 到webwork官网下载webwork-2.2.2.zip和spring_1.2.7.zip,获取webwork-2.2.2.jar以及lib/default 目录下的核心必须类包,同时获得spring1.2.7.jar,这些包在构建web工程时需要放到工程类库目录中;

2. 编辑webwork_2.2.7在web工程中的配置文件,包括xwork.xml、webwork-default.xml、webwork.tld、webwork.properties、web.xml以及专门为登陆事务编写的action配置文件login.xml，另外还要编辑spring的相关配置文件applicationContext.xml,其目录结构如下图:

图1 目录结构

3. web.xml配置文件说明与举例,web.xml配置文件在WEB-INF目录下,是所有web工程都必须的配置文件,使用webwork框架,需要在改配置文件里面注册webwork框架插件来处理web请求,举例如下:

<?xml version="1.0" encoding="ISO-8859-1"?>

<!DOCTYPE web-app

PUBLIC "-//Sun Microsystems, Inc.//DTD Web Application 2.3//EN"

"http://java.sun.com/dtd/web-app_2_3.dtd">

<web-app>

<display-name>Test v2.0</display-name>

<context-param>

<param-name>contextConfigLocation</param-name>

<param-value>/WEB-INF/classes/spring/applicationContext.xml</param-value>

</context-param>

<filter-name>Encoding</filter-name>

<filter-class>com.jetsum.cantus.core.servlet.SetCharacterEncodingFilter</filter-class>

<init-param>

<param-name>encoding</param-name>

<param-value>GBK</param-value>

</init-param>

</filter>

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

</listener>

<listener-class>com.opensymphony.webwork.spring.lifecycle.SpringExternalReferenceResolverSetupListener</listener-class>

</listener>

<listener-class>com.opensymphony.webwork.spring.WebWorkSpringObjectFactory</listener-class>

</listener>

<servlet-name>webwork</servlet-name>

<servlet-class>com.opensymphony.webwork.dispatcher.ServletDispatcher</servlet-class>

</servlet>

<servlet-mapping>

<servlet-name>webwork</servlet-name>

<url-pattern>*.action</url-pattern>

</servlet-mapping>

<welcome-file-list>

<welcome-file>index.jsp</welcome-file>

</welcome-file-list>

<taglib-uri>webwork</taglib-uri>

<taglib-location>/WEB-INF/webwork.tld</taglib-location>

</taglib>

</web-app>

4. xwrok.xml配置说明与举例,该文件在类的根目录下,在web工程中应放在src目录下,工程编译后就会导入class目录下,即类根目录.其作用:webwork插件,在此也可以称做web请求处理分派器,分派器会根据该配置文件将web请求交给相应的Action处理,举例如下:

<!DOCTYPE xwork PUBLIC "-//OpenSymphony Group//XWork 1.0//EN" "http://www.opensymphony.com/xwork/xwork-1.0.dtd">

<xwork>

<interceptor-stack name="standard-interceptors">

<interceptor-ref name="externalReferences" />

<interceptor-ref name="prepare" />

<interceptor-ref name="static-params" />

<interceptor-ref name="params" />

<interceptor-ref name="conversionError" />

</interceptor-stack>

<interceptor-stack name="stand-upload-interceptors">

<interceptor-ref name="externalReferences" />

<interceptor-ref name="prepare" />

<interceptor-ref name="fileUpload" />

<interceptor-ref name="static-params" />

<interceptor-ref name="params" />

<interceptor-ref name="conversionError" />

</interceptor-stack>

</interceptors>

<default-interceptor-ref name="standard-interceptors" />

</package>

</xwork>

5. webwork.properties配置说明与举例 ,此配置文件主要向webwork框架提供一些参数,如编码等,更多信息要查找相关文档,举例如下:

webwork.locale=zh_CN

webwork.i18n.encoding=GBK

6. login.xml 配置文件说明与举例,专门用来配置LoginAction,该配置文件会被包含入xwork.xml配置文件，这样才能生效,举例如下:

<!DOCTYPE xwork PUBLIC "-//OpenSymphony Group//XWork 1.0//EN" "http://www.opensymphony.com/xwork/xwork-1.0.dtd">

<xwork>

<!— 存储帐户信息 -->

<param name="location">index.jsp</param>

</result>

<param name="location">index.jsp</param>

</result>

<param name="location">index.jsp</param>

</result>

</action>

</package>

</xwork>

注意：externalReferenceResolver="com.opensymphony.xwork.spring.SpringExternalReferenceResolver" 告知spring框架在需要时配置action内实体之间的映射关系，但是到目前为止还没有利用这种依赖，所以applicationContent.xml中也没有相应的依赖配置

7. applicationContext.xml 配置文件说明与举例,专门用来配置bean之间的依赖关系，在需要的时候进行动态的依赖注射,举例如下:

<?xml version="1.0" encoding="GBK"?>

<!DOCTYPE beans PUBLIC "-//SPRING//DTD BEAN//EN" "http://www.springframework.org/dtd/spring-beans.dtd">

8.Action类举例

RegisterAction类源码如下:

package com.jetsum.test.action;

import com.jetsum.test.entity.User;

import com.opensymphony.xwork.ActionSupport;

public class LoginAction extends ActionSupport {

private User user = new User();

private String name;

private String password;

private String statu;

public String getStatu() {

return statu;

}

public void setStatu(String statu) {

this.statu = statu;

}

public String login() {

System.out.println("my name is " + name);

System.out.println("my password is " + password);

user.setName(name);

user.setPassword(password);

this.statu = "y";

return "error";

}

public String getName() {

return name;

}

public void setName(String name) {

this.name = name;

}

public String getPassword() {

return password;

}

public void setPassword(String password) {

this.password = password;

}

User 类源码如下:

package com.jetsum.test.entity;

public class User {

private int id;

private String name;

private String password;

public int getId() {

return id;

}

public void setId(int id) {

this.id = id;

}

public String getName() {

return name;

}

public void setName(String name) {

this.name = name;

}

public String getPassword() {

return password;

}

public void setPassword(String password) {

this.password = password;

}

9. index.jsp举例

<%@ page language="java" contentType="text/html; charset=gbk" pageEncoding="gb2312"%>

<%@taglib prefix="ww" uri="webwork"%>

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"

"http://www.w3.org/TR/html4/loose.dtd">

<html>

<head>

</head>

<body>

<input type="text" name="name" id="name" size="19"/><ww:if test='"n".equals(statu)'> <font color="red" size="1">登录名或密码错误</font></ww:if><br><br>

</form>

</body>

</html>

注意：action="login!login.action"属性，！前面的login表示action名，后面的login表示action需要执行的方法，默认方法为execute方法，在这里没有用到webwork的验证框架，但是用到了webwork的标签来实现验证