IDEA基于Maven Struts2搭建配置及示例
1.web.xml加载struts框架即过滤器,要注意struts版本不同过滤器配置也不同。
1 <!DOCTYPE web-app PUBLIC 2 "-//Sun Microsystems, Inc.//DTD Web Application 2.3//EN" 3 "http://java.sun.com/dtd/web-app_2_3.dtd" > 4 5 <web-app> 6 <display-name>Archetype Created Web Application</display-name> 7 8 <filter> 9 <filter-name>struts2</filter-name> 10 11 <filter-class> 12 org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter 13 </filter-class> 14 15 <init-param> 16 <param-name>config</param-name> 17 <param-value>struts-default.xml,struts-plugin.xml,struts.xml</param-value> 18 </init-param> 19 </filter> 20 21 <filter-mapping> 22 <filter-name>struts2</filter-name> 23 <url-pattern>/*</url-pattern> 24 </filter-mapping> 25 26 <welcome-file-list> 27 <welcome-file>login.jsp</welcome-file> 28 </welcome-file-list> 29 30 </web-app>
2.配置struts.xml,配置Action。(name,class,method)
1 <?xml version="1.0" encoding="UTF-8"?> 2 3 <!DOCTYPE struts PUBLIC 4 "-//Apache Software Foundation//DTD Struts Configuration 2.5//EN" 5 "http://struts.apache.org/dtds/struts-2.5.dtd"> 6 7 <struts> 8 <package name="default" extends="struts-default" namespace="/"> 9 <action name="login" class="UserAction" method="login"> 10 <result name="success">index.jsp</result> 11 <result name="login">login.jsp</result> 12 </action> 13 </package> 14 </struts>
3.View:login.jsp和index.jsp。
1 <%@ page language="java" contentType="text/html; charset=UTF-8" 2 pageEncoding="UTF-8"%> 3 <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> 4 <html> 5 <head> 6 <meta http-equiv="Content-Type" content="text/html; charset=UTF-8"> 7 <title>Hello Maven</title> 8 </head> 9 <body> 10 <p>欢迎进入Maven Struts2应用!</p> 11 </body> 12 </html>
<%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%> <!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>登录界面</title> </head> <body> <form action="login" method="post"> <table> <tr> <td>用户名:</td> <td><input type="text" name="username" /> </td> </tr> <tr> <td>密码:</td> <td><input type="text" name="password" /> </td> </tr> <tr> <td colspan="2"> <input type="submit" value="登录" /> <input type="reset" value="重置" /></td> </tr> </table> </form> </body> </html>
4.编写Action处理类。
1 import com.opensymphony.xwork2.ActionSupport; 2 import org.apache.struts2.ServletActionContext; 3 import javax.servlet.http.HttpServletRequest; 4 import java.io.UnsupportedEncodingException; 5 6 public class UserAction extends ActionSupport{ 7 @Override 8 public String execute() throws Exception { 9 return super.execute(); 10 } 11 public String login() throws UnsupportedEncodingException { 12 HttpServletRequest request = ServletActionContext.getRequest(); 13 request.setCharacterEncoding("utf-8"); 14 String name = request.getParameter("username"); 15 String pass = request.getParameter("password"); 16 if("admin".equals(name)&&"".equals(pass)){ 17 return SUCCESS; 18 }else{ 19 return "login"; 20 } 21 } 22 }
总结:初学struts期间遇到的struts.xml文件放置位置、struts过滤器配置、Maven依赖安装、struts流程原理等问题欢迎咨询!
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