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霜花似雪:
博主可以分享一下源码吗?
使用maven构建web项目实例 -
王庆波-行:
很好的demo!
memcache使用实例 -
surpassno:
大写的牛逼
java可视化显示内存使用情况 -
zhulin0504:
怎么访问NetEcho.html页面呀???
applet与servlet的网络通信 -
springdata:
java多线程实例demo源代码下载:http://www.z ...
java多线程例子
新建一个web项目,为其添加struts1.1特性,然后新建一个产生数字的acionform
新建一个生成数字的action类,代码如下:
再建一个接收所猜数字的acitionform
判断所猜数字的action
这些在myeclipse里都有图形化生成工具,填入对应的名称即可生成代码类,在写入所需的逻辑代码。这样系统会自动在struts-config.xml中配置对应的action和actionform,无需自己编写配置文件
struts-config.xml
web。xml主要配置servlet,
唯一的一个jsp页面guess.jsp代码如下:主要用到struts的标签库
资源文件 ApplicationResources.properties
result.equal = \u606d\u559c\u4f60\uff0c\u7b54\u5bf9\u4e86\uff01
result.small = \u592a\u5c0f\u4e86\uff0c\u91cd\u65b0\u731c\u5427\uff01
result.big = \u592a\u5927\u4e86\uff0c\u91cd\u65b0\u731c\u5427\uff01
page = \u731c\u6570\u5b57\u7684\u9875\u9762
page.choose = \u9009\u62e9\u6570\u5b57\u7684\u8303\u56f4
page.new = \u5f00\u59cb\u4e00\u6b21\u65b0\u7684\u731c\u6570
page.guess = \u731c\u731c\u770b
部署到tomcat上,或直接拷贝项目至webapps启动tomcat,输入网址http://localhost:8080/项目名称,即可访问
/* * Generated by MyEclipse Struts * Template path: templates/java/JavaClass.vtl */ package ch02; import javax.servlet.http.HttpServletRequest; import org.apache.struts.action.ActionErrors; import org.apache.struts.action.ActionForm; import org.apache.struts.action.ActionMapping; /** * MyEclipse Struts * Creation date: 06-25-2010 * * XDoclet definition: * @struts.form name="ch02.form.GuessNumberFormForm" */ public class CreateNumberActionForm extends ActionForm { private String digits; public String getDigits() { return digits; } public void setDigits(String digits) { this.digits = digits; } /* * Generated Methods */ /** * Method validate * @param mapping * @param request * @return ActionErrors */ public ActionErrors validate(ActionMapping mapping, HttpServletRequest request) { // TODO Auto-generated method stub return null; } /** * Method reset * @param mapping * @param request */ public void reset(ActionMapping mapping, HttpServletRequest request) { // TODO Auto-generated method stub } }
新建一个生成数字的action类,代码如下:
/* * Generated by MyEclipse Struts * Template path: templates/java/JavaClass.vtl */ package ch02; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; import javax.servlet.http.HttpSession; import org.apache.struts.action.Action; import org.apache.struts.action.ActionForm; import org.apache.struts.action.ActionForward; import org.apache.struts.action.ActionMapping; import ch02.CreateNumberActionForm; /** * MyEclipse Struts Creation date: 06-25-2010 * * XDoclet definition: * * @struts.action */ public class createNumberAction extends Action { /* * Generated Methods */ /** * Method execute * * @param mapping * @param form * @param request * @param response * @return ActionForward */ public ActionForward execute(ActionMapping mapping, ActionForm form, HttpServletRequest request, HttpServletResponse response) { CreateNumberActionForm cform = (CreateNumberActionForm) form; HttpSession session = request.getSession(); session.removeAttribute("message"); int digits = Integer.parseInt(cform.getDigits()); int secret_number = (int) (Math.random() * digits); System.out.println(secret_number); session.setAttribute("secret_number", String.valueOf(secret_number)); return mapping.findForward("guess"); //全局转发或是action forward } }
再建一个接收所猜数字的acitionform
* Generated by MyEclipse Struts * Template path: templates/java/JavaClass.vtl */ package ch02; import javax.servlet.http.HttpServletRequest; import org.apache.struts.action.ActionErrors; import org.apache.struts.action.ActionForm; import org.apache.struts.action.ActionMapping; /** * MyEclipse Struts * Creation date: 06-25-2010 * * XDoclet definition: * @struts.form name="ch02.form.JudgeActionForm" */ public class JudgeActionForm extends ActionForm { /* * Generated fields */ /** guess_number property */ private String guess_number; /* * Generated Methods */ /** * Method validate * @param mapping * @param request * @return ActionErrors */ public ActionErrors validate(ActionMapping mapping, HttpServletRequest request) { // TODO Auto-generated method stub return null; } /** * Method reset * @param mapping * @param request */ public void reset(ActionMapping mapping, HttpServletRequest request) { // TODO Auto-generated method stub } /** * Returns the guess_number. * @return String */ public String getGuess_number() { return guess_number; } /** * Set the guess_number. * @param guess_number The guess_number to set */ public void setGuess_number(String guess_number) { this.guess_number = guess_number; } }
判断所猜数字的action
/* * Generated by MyEclipse Struts * Template path: templates/java/JavaClass.vtl */ package ch02; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; import javax.servlet.http.HttpSession; import org.apache.struts.action.Action; import org.apache.struts.action.ActionForm; import org.apache.struts.action.ActionForward; import org.apache.struts.action.ActionMapping; import ch02.JudgeActionForm; /** * MyEclipse Struts * Creation date: 06-25-2010 * * XDoclet definition: * @struts.action */ public class judgeAction extends Action { /* * Generated Methods */ /** * Method execute * @param mapping * @param form * @param request * @param response * @return ActionForward */ public ActionForward execute(ActionMapping mapping, ActionForm form, HttpServletRequest request, HttpServletResponse response) { // TODO Auto-generated method stub JudgeActionForm jForm = (JudgeActionForm) form; HttpSession session = request.getSession(); int guess_number = Integer.parseInt(jForm.getGuess_number()); int secret_number = Integer.parseInt((String)session.getAttribute("secret_number")); if (guess_number == secret_number){ session.setAttribute("message","equal"); }else if (guess_number > secret_number){ session.setAttribute("message","bigger"); }else{ session.setAttribute("message","smaller"); } return mapping.findForward("guess"); //继续返回猜数字 } }
这些在myeclipse里都有图形化生成工具,填入对应的名称即可生成代码类,在写入所需的逻辑代码。这样系统会自动在struts-config.xml中配置对应的action和actionform,无需自己编写配置文件
struts-config.xml
<?xml version="1.0" encoding="UTF-8"?> <!DOCTYPE struts-config PUBLIC "-//Apache Software Foundation//DTD Struts Configuration 1.1//EN" "http://jakarta.apache.org/struts/dtds/struts-config_1_1.dtd"> <struts-config> <data-sources /> <form-beans > <form-bean name="createNumberActionForm" type="ch02.CreateNumberActionForm" /> <form-bean name="judgeActionForm" type="ch02.JudgeActionForm" /> </form-beans> <global-exceptions /> <global-forwards> <forward name="guess" path="/guess.jsp"></forward> </global-forwards> <action-mappings > <action name="createNumberActionForm" path="/createNumberAction" scope="session" type="ch02.createNumberAction" validate="false" /> <action name="judgeActionForm" path="/judgeAction" scope="session" type="ch02.judgeAction" validate="false" /> </action-mappings> <message-resources parameter="ApplicationResources" /> </struts-config>
web。xml主要配置servlet,
<?xml version="1.0" encoding="UTF-8"?> <web-app xmlns="http://java.sun.com/xml/ns/j2ee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" version="2.4" xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd"> <!-- 中心控制器ActionServlet --> <servlet> <servlet-name>action</servlet-name> <servlet-class> org.apache.struts.action.ActionServlet </servlet-class> <init-param> <param-name>config</param-name> <param-value>/WEB-INF/struts-config.xml</param-value> </init-param> <init-param> <param-name>debug</param-name> <param-value>3</param-value> </init-param> <init-param> <param-name>detail</param-name> <param-value>3</param-value> </init-param> <load-on-startup>0</load-on-startup> </servlet> <!-- 中心控制器ActionServlet --> <servlet-mapping> <servlet-name>action</servlet-name> <url-pattern>*.do</url-pattern> </servlet-mapping> <welcome-file-list> <welcome-file>guess.jsp</welcome-file> </welcome-file-list> </web-app>
唯一的一个jsp页面guess.jsp代码如下:主要用到struts的标签库
<%@ taglib uri="/WEB-INF/struts-html.tld" prefix="html" %> <%@ taglib uri="/WEB-INF/struts-bean.tld" prefix="bean" %> <%@ page contentType="text/html; charset=GB2312" %> <html:html> <head> <title> guess.jsp </title> </head> <body> <h1><bean:message key="page"/></h1> <html:form action="/createNumberAction.do" method="POST"> <h3><bean:message key="page.choose"/></h3> <html:select property="digits"> <html:option value="10">10</html:option> <html:option value="100">100</html:option> <html:option value="1000">1000</html:option> </html:select> <html:submit><bean:message key="page.new"/></html:submit><br> </html:form> <hr> <html:form action="/judgeAction.do" method="POST"> <html:text property="guess_number" value=""/> <html:submit><bean:message key="page.guess"/></html:submit><br> </html:form> <hr> <% String message = null; message = (String)session.getAttribute("message"); if (message != null) { if (message.equals("equal")){ %> <!-- result.equal在资源文件中定义 --> <h1><bean:message key="result.equal"/></h1> <% } else if (message.equals("bigger")){ %> <h1><bean:message key="result.big"/></h1> <% } else { %> <h1><bean:message key="result.small"/></h1> <% } } %> </body> </html:html>
资源文件 ApplicationResources.properties
result.equal = \u606d\u559c\u4f60\uff0c\u7b54\u5bf9\u4e86\uff01
result.small = \u592a\u5c0f\u4e86\uff0c\u91cd\u65b0\u731c\u5427\uff01
result.big = \u592a\u5927\u4e86\uff0c\u91cd\u65b0\u731c\u5427\uff01
page = \u731c\u6570\u5b57\u7684\u9875\u9762
page.choose = \u9009\u62e9\u6570\u5b57\u7684\u8303\u56f4
page.new = \u5f00\u59cb\u4e00\u6b21\u65b0\u7684\u731c\u6570
page.guess = \u731c\u731c\u770b
部署到tomcat上,或直接拷贝项目至webapps启动tomcat,输入网址http://localhost:8080/项目名称,即可访问
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发表评论
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struts登录系统实现
2011-04-16 10:36 1124在java ee中讲了第一个web实例,具体见博文:http: ... -
exception---struts1
2010-08-25 18:20 887关于struts里的异常处理,用到动态actionform,无 ... -
helloworld---------struts1
2010-08-24 14:50 997在myeclipse里新建web项目,加上struts特性,s ... -
Java杂谈(九)--Struts
2010-08-19 17:21 811J2ee的开源框架很多,笔者只能介绍自己熟悉的几个,其他的目前 ... -
MVC的第一个实例
2010-08-08 10:44 938J2EE J2EE API包含以下几个部分: Jsp(jav ... -
org.apache.commons.validator.ValidatorException:org.apache.struts.validator
2010-08-06 09:55 1823在我们用struts来进行表单验证时,也许是会出现以下异常!o ... -
struts配置数据源
2010-08-04 12:30 755Struts数据源配置过程(不在Action里连接) JDB ...
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