Home > Developer > Web Develop
Struts development steps and struts development steps
To put it bluntly, this simple struts has been tossing around for a long time, and it took about three days to solve it. Below I will summarize the development steps: (I am using MyEclipse );
1. Create an Exercise3 web Project
2. Configure the web. xml file
Add the following code:
<filter><filter-name>struts2</filter-name><filter-class>org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter</filter-class></filter><filter-mapping><filter-name>struts2</filter-name><url-pattern>/*</url-pattern></filter-mapping>3. Add a class library
Place the jar package for example under WEB-INF/lib
4. Create a class
The Code is as follows:
Package cn. wwh. www. struts;/*** function: ** @ author @ * @ version 1.0 * @ Creation Time: 08:44:26 */public class FirstAction {public String <span style = "color: # ff0000;"> firtstMethod </span> () {System. out. println ("hello word, this my first Struts! "); Return" hello ";}}
5. Create a New View/hello/welcome. jsp file under WebRoot.
The Code of welcome. jsp is as follows:
<pre name="code" class="html"><%@ page language="java" import="java.util.*" pageEncoding="ISO-8859-1"%><%String path = request.getContextPath();String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";%><!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
6. Create a struts. xml file under srcThe Code is as follows:
<?xml version="1.0" encoding="UTF-8" ?><!DOCTYPE struts PUBLIC"-//Apache Software Foundation//DTD Struts Configuration 2.3//EN""http://struts.apache.org/dtds/struts-2.3.dtd"><struts><package name="default" namespace="/<span style="color:#3333ff;">test</span>" extends="struts-default"><action name="<span style="color:#3333ff;">hello</span>" class="cn.wwh.www.struts.FirstAction"method="<span style="color:#ff0000;">firtstMethod</span>"><result name="hello" type="redirect"><param name="location">/views/hello/welcome.jsp</param></result></action></package></struts>7. deploy it in tomcatEnter http: // localhost: 8080/Exercise3/test/hello. action in the browser.
The address bar is changed because the redirect (redirection) method is used in the configuration file.
Result chart:
Note ):
1. The jar package cannot be imported repeatedly. Otherwise, a jar conflict occurs. Due to various jar packages, this exception occurs when tomcat is started.
2. The access address entered in the browser is incorrect. This address combination is related to the namespace and action name in the struts. xml file.
General access method:
Http: // ip: port/contextPath/namespace/actionName [. action]
Steps for developing java web in struts21. Build a project
2. Import package
3. Configure web. xml
4. Create an action class
5. Configure struts. xml
6. Page
Development steps of Struts2 and hibernateHibernate acts as the interaction of the underlying domain database. In the development step, the ORmapping relationship is established first, then the injection is performed, and the SQL spelling based on the business logic is performed.
As the display layer, Struts2 mainly controls the data returned in the action. What data is returned if you want to display the content on the page. The tag library of struts2 is available and optional, depending on your habits
The two frameworks are best attached to the spring framework. According to the MVC structure, hibernate is responsible for data interaction at the Model layer, struts2 is responsible for display effect control at the View layer, and spring is responsible for processing the Controller of the business logic, inject dependencies. If this structure is used, you must first set up the framework and compile the configuration file ....
Start building with 50+ products and up to 12 months usage for Elastic Compute Service
1 on 1 presale consultation
24/7 Technical Support 6 Free Tickets per Quarter Faster Response
Alibaba Cloud offers highly flexible support services tailored to meet your exact needs.
A comprehensive suite of global cloud computing services to power your business
Payment Methods We Support
