Struts(Printable).rar_interviews资源-CSDN文库

共1个文件

doc：1个

版权申诉

4 浏览量 2022-09-21 08:42:16 上传评论收藏 174KB RAR 举报

Struts是Java Web开发中的一个开源框架，主要用来构建基于MVC（Model-View-Controller）模式的应用程序。在面试中，对Struts的理解和掌握是评估应聘者Java Web技能的重要标准。以下是一些关于Struts框架的关键知识点，涵盖了其核心概念、功能以及常见面试问题。 1. **Struts框架概述**：Struts是由Apache软件基金会维护的，它提供了处理HTTP请求、业务逻辑整合、视图展示等一系列工具，帮助开发者更高效地构建Web应用。Struts1和Struts2是两个主要版本，其中Struts2是Struts1的升级版，拥有更强大的功能和更好的设计模式。 2. **MVC模式**：Struts框架是MVC设计模式的实现。Model代表业务逻辑，View负责数据显示，Controller处理用户请求并协调Model和View之间的交互。 3. **Action类**：在Struts中，Action类是Controller层的核心，它处理用户的请求，并调用相应的业务逻辑。每个Action类对应一个特定的HTTP请求，处理完成后，返回一个ActionForward对象指示下一步的动作。 4. **配置文件**：`struts-config.xml`是Struts1的主要配置文件，定义了Action、ActionForm、ActionMapping等元素，而在Struts2中，配置通常在`struts.xml`或相关的XML文件中，采用更加灵活的注解方式。 5. **ActionForm**：Struts1中的ActionForm对象用于收集和验证用户输入的数据，然后传递给Action类。在Struts2中，这个角色被更强大的ValueStack和拦截器取代。 6. **Interceptor（拦截器）**：Struts2引入了拦截器，允许在Action执行前后进行额外的操作，如数据校验、日志记录等，增强了框架的可扩展性和灵活性。 7. **Tiles框架集成**：Struts可以与Tiles框架结合，提供页面布局和组件重用的功能。Tiles定义了页面模板，通过定义不同的定义来组合多个JSP片段，简化了视图层的构建。 8. **国际化与本地化**：Struts支持多语言，通过资源文件管理不同地区的文本和日期格式。 9. **异常处理**：Struts提供了统一的异常处理机制，通过配置文件定义不同类型的异常如何被映射到特定的错误页面。 10. ** strut2-struts1-plugin**：Struts2提供了与Struts1兼容的插件，使得在Struts1基础上逐步迁移到Struts2变得更容易。在面试中，可能遇到的问题包括但不限于： - 描述一下Struts框架的工作流程。 - 解释MVC模式在Struts中的具体实现。 - Action和ActionForm的区别是什么？ - 如何在Struts2中使用拦截器？ - 如何在Struts中实现国际化？ - 当发生异常时，Struts是如何处理的？ - 举例说明Tiles框架在Struts中的应用。 - Struts2相比于Struts1有哪些改进？了解和熟练掌握这些知识点，将有助于在面试中展现出对Struts框架的深入理解和实际应用能力。

资源推荐

资源详情

资源评论

收起资源包目录

Struts(Printable).rar （1个子文件）

Struts(Printable).doc 485KB

Referring to the above, which one of the following choices below allows the creation of a Struts-

aware HTML form?

� <%@ page language="java" %>

� <%@ <taglib-uri>/WEB-INF/struts-html.tld</taglib-uri> %>

� <%@ taglib uri="/WEB-INF/struts-html.tld" prefix="html" %>

� %@! taglib uri="/WEB-INF/struts-html.tld" prefix="html" %

� <%@! page language="java" %>

2. The Struts message resources can be loaded either by 1) an init parameter in the servlet config in

the web.xml or 2) by a <message-resources> tag in the struts-config.xml.

Referring to the above, when is using option 2 required in a Struts application?

� Option 2 is required when the application supports more than one application

resource file.

� Option 2 is required when the application supports database access.

� Option 2 is required when the application uses the Struts Tiles framework.

� Option 2 is required when using Struts v1.2.x or greater.

� Option 2 is required when the application uses the Spring framework.

[Note:] You can define more than one message resource file. Therefore you must add a parameter key to

the tag <message-resource>. With this key Struts knows which message resource file to access.

Referring to the above, which one of the following codes allows a file to be uploaded to the server?

� part="multipart/form-data"

� encrtype="multipart/form-data"

� contentType="multipart/form-data"

� filetype="multipart/form-data"

� enctype="multipart/form-data"

[Note:] http://www.roseindia.net/struts/strutsfileuploadandsave.shtml

4. struts-config.xml snippet:

<action path="/multi"

type="test.MultiAction"

name="MultiForm"

scope="request"

input="/multi.jsp"

parameter="method"/>

JSP code snippet:

<html:form ction="/multi">

<html:submit property="method">

<bean:message key="button.feature1"/>

</html:submit>

<html:submit property="method">

<bean:message key="button.feature2"/>

</html:submit>

</html:form>

Referring to the above, how does a developer create an Action class capable of processing multiple

submit buttons WITHOUT using JavaScript in the form?

� By subclassing the DefinitionDispatcherAction class and defining an execute method called

feature1 and feature2 in the subclass

� By instantiating the DispatchAction class and defining an execute method called feature1 and

feature2

� By subclassing the LookupDispathAction class and defining a method called

getKeyMethodMap in the subclass

� By subclassing the DispatchAction class and declaring an execute method called feature1 and

feature2 in the subclass

� By subclassing the LookupDispathAction class and defining forward methods called feature1

and feature2 in the subclass

[Note:] http://www.roseindia.net/struts/struts-LookupDispatchAction.shtml

Referring to the above, which code example clears the value from name?

� public void clear(ActionMappingFactory mapping, HttpServletRequest

request) {

this.name = null;

}

� public void clear(ActionMapping mapping, HttpServletRequest request) {

this.name = null;

}

� public void reset(ActionMapping mapping, HttpServletRequest request) {

this.name = null;

}

� public void reset(ActionMapping mapping, HttpServletRequest request) {

this.name.reset();

}

� public void reset(ActionMappingFactory mappingFactory,

HttpServletRequest request) {

this.name = null;

6. When is it advisable to use a scriptlet in a JSP contained within a Struts application?

� For simple logic contained within a JSP

� To process primitive data types within a JSP

� For math logic contained within a JSP

� To present existing data that does not require additional processing

� For calling execute method on the mapped Action class

[Note:] http://struts.apache.org/1.0.2/api/org/apache/struts/taglib/bean/package-summary.html

Referring to the above, a developer must create an Action class capable of processing build and test

functions for a car. How does the developer accomplish this task?

� By creating the CarAction class by subclassing the DispatchAction class and

declaring an execute method called build and test in the subclass

� By creating the CarAction class by subclassing the LookupDispathAction class and defining a

method called getKeyMethodMap in the subclass

� By creating the CarAction class by subclassing the DefinitionDispatcherAction class and

defining an execute method called build and test in the subclass

� By creating the CarAction class by subclassing the ExtensibleDispathAction class and defining

ActionForward methods called build and test in the subclass

� By instantiating the DispatchAction class and defining an execute method called build and

test

Assuming classes Test*Action have valid ActionForm mappings and validate() contains login status

checks, how does the Sample <action-mapping> change to call this method for

com.test.struts.DefaultAction without affecting the other mappings?

� <action unknown="validate" type="com.test.struts.DefaultAction"/>

� <action unknown="true" type="com.test.struts.DefaultAction"/>

� <action unknown="true" validate="true" type="com.test.struts.DefaultAction"/>

� <action mapping="unknown" validate="true" type="com.test.struts.DefaultAction"/>

� <action unknown="false" type="com.test.struts.DefaultAction

[Note:]

http://www.jajakarta.org/struts/struts1.0/en/target/documentation/api/org/apache/struts/action/Ac

tionMapping.html

9. A developer has created an ActionForm subclass that has an integer property called contacts with

getContacts() and setContacts() accessors. The page field representing contacts can accept non-

numeric input.

Referring to the above, how does the developer change the configuration to display the value

entered back to the user if non-numeric input is entered?

Specify <form-property allow_integer=true> in the Action configurationy>.

Specify <form-property initial="java.lang.Integer"> in the Action configuration.

Contact property as a String.

Specify <form-property initial="java.lang.String"> in the Action configurationproperty>.

Specify <form-property allow_invalid=true> in the Action configuration

10.

Referring to the above, which one of the following prevents the execution of the LoginAction and

instead forwards to the Web resource /external/3rdpartylogin?

� <action path="/login" redirect="/external/3rdpartylogin">

� <action path="/login" name="/external/3rdpartylogin">

� <action path="/login" parameter="/external/3rdpartylogin">

� <action path="/login" type="test.LoginAction" redirect="/external/3rdpartylogin">

� <action path="/login" forward="/external/3rdpartylogin

11.

Referring to the above, which one of the following choices retrieves the value from userid?

� DynaActionForm lForm = (DynaActionForm)form;

String login = (String)lForm.getDynaProperty("userid").toString();

� DynaActionForm lForm = (DynaActionForm)form;

String login = (String)lForm.getStrings("testForm");

� DynaActionForm lForm = (DynaActionForm)form;

String login = (String)lForm.getDynaClass(userid);

评论收藏

内容反馈

版权申诉

JonSco

粉丝: 90
资源: 1万+

Struts(Printable).rar_interviews

Interviews

interviews.frontend

interviews_app

Jsp(printable).rar_interviews

asm.rar_源码

SMTP.rar_code_smtp_visual c

unary_minus.rar_version control

SMTP.c.rar_smtp.c

pop3.rar_linux pop3_pop3

src.rar_JAVA打印_java套打_套打

qp.rar_mime QP_qp_quoted printable_字节base64_邮件 ASCII

在Java中轻松打印文档.rar_JAVA打印_java 打印_打印 JAVA_打印文档

ui.rar_return

dlcah.rar_网络

pop3.rar_pop3

rfc2045.rar_rfc2045_邮件服务器

jsp_print.rar_java 打印_java打印编程_jsp print_jsp_print_打印 JAVA

开源Jvav swing.rar_java 打印_jvav_swing 内容_swing 打印_打印

MIME-java.rar_java mime_javamime_mime_mime java_邮件 解析

中文java技术网在Java中轻松打印文档.rar_java 打印_java打印中文

用JAVA设计面向对象的打印程序.rar_java 打印_java 打印程序_java面向对象_打印 设计

smtp.tar.gz_quoted-printable

实验5 抽象类与接口_jj.py_

关于E-Mail信体的基本编码和解码方法email_coder.zip_E.ON mail_email_mail_quoted-

PrintUIComponent.zip_zip_打印

04.rar_打印编程_Java_

jmeter学习笔记

Java实现打印功能.doc

2021最新手账系列-Weekly Study Planner Printable.pdf

DellRestoreTools.rar 戴尔一键恢复

最新资源

MIME-java.rar_java mime_javamime_mime_mime java_邮件解析

用JAVA设计面向对象的打印程序.rar_java 打印_java 打印程序_java面向对象_打印设计