Struts2一個簡單的登入跳轉
所用工具:Myeclipse2014,Tomcat8.520,Struts2.3.16.1。(網上都有)。
1.開啟Meclipse2014
2,開啟Tomcat伺服器。F:\Struts\apache-tomcat-8.5.20-windows-x64\apache-tomcat-8.5.20\bin在bin目錄下面有一個startup.bat.(如果開啟只是一閃就自動退出的,百度,這裡不多講解。)
3.建立新專案,Web project.
1.在src右鍵創一個struts.xml檔案。在WebRoot->WEB-INF右鍵創一個web.xml檔案。2.在WEB-INF->lib放入tomcat.jar包,包的位置在F:\Struts\apache-tomcat-8.5.20-windows-x64\apache-tomcat-8.5.20\lib。(你下載Tomcat的lib目錄下)。全部複製過去就好!3
在WEB-INF右鍵創一個登入介面,一個登入成功介面Hello.jsp和lzt.jsp 4 .在src右鍵新建包,寫上包的名字,例如。com.struts.lzt在建立新類-Test1.。
如上程式碼!!
struts.xml程式碼:
<?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="default11" namespace="/" extends="struts-default">
<global-results>
<result name="success">
/lzt.jsp
</result>
<result name="login">
/Hello.jsp
</result>
</global-results>
<action name="hello" class = "com.struts.lzt.Test1">
</action >
</package>
</struts>
(result的name決定程式跳轉到哪個jsp介面,action-name:是呼叫action時輸入路徑的組成部分,輸入網址的時候輸入它,會自動讀取此時result name ,然後跳轉到相應的介面。 action–class:action所在的路徑(包名+類名);)
Test1.java程式碼:
package com.struts.lzt;
import com.opensymphony.xwork2.ActionSupport;
public class Test1 extends ActionSupport{
public String password;
public String username;
public void getUsername(String username){
this.username=username;
}
public String setUsername(){
return username;
}
public void getPassword(String password){
this.password=password;
}
public String setPassword(){
return password;
}
@Override
public String execute(){
if("11".equals(username) && "11".equals(password))
return "success";
else
return "login";
}
}
(給出相應輸入賬號密碼的 result-name)
web.xml程式碼:
<?xml version="1.0" encoding="UTF-8"?>
<web-app id="WebApp_9" version="2.4" xmlns="http://java.sun.com/xml/ns/j2ee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd">
<display-name>Struts Blank</display-name>
<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>
<welcome-file-list>
<welcome-file>index.jsp</welcome-file>
</welcome-file-list>
</web-app>
Hello.jsp程式碼:
<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
<%@ taglib uri="/struts-tags" prefix="s" %>
<%
String path = request.getContextPath();
String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<base href="<%=basePath%>">
<title>My JSP 'index.jsp' starting page</title>
<meta http-equiv="pragma" content="no-cache">
<meta http-equiv="cache-control" content="no-cache">
<meta http-equiv="expires" content="0">
<meta http-equiv="keywords" content="keyword1,keyword2,keyword3">
<meta http-equiv="description" content="This is my page">
<!--
-->
</head>
<body>
<s:form action="/hello" method="post">
<s:label value="系統登陸"></s:label>
<s:textfield name="username" label="賬號" />
<s:password name="password" label="密碼" />
<s:submit value="登入" />
</s:form>
</body>
</html>
(s:form action=”/hello” method=”post”這句話就是每次登入後會自動執行http://localhost:8080/專案名字/hello)
lzt.jsp程式碼:
<%@ 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">
<html>
<head>
<base href="<%=basePath%>">
<title>My JSP 'lzt.jsp' starting page</title>
<meta http-equiv="pragma" content="no-cache">
<meta http-equiv="cache-control" content="no-cache">
<meta http-equiv="expires" content="0">
<meta http-equiv="keywords" content="keyword1,keyword2,keyword3">
<meta http-equiv="description" content="This is my page">
<!--
<link rel="stylesheet" type="text/css" href="styles.css">
-->
</head>
<body>
success. <br>
</body>
</html>
1.執行前,配置tomcat伺服器。在Myeclipse裡面配置.
點選Wimdow->Proferneces->Myeclipse->Serves->Tomcat 然後選擇版本,推薦最新版本 ,像我的話是Tomcat8.0,。Tomcat home directory 按Browse 選擇你安裝的Tomcar路徑。再選擇左上角的Enable ,按下apply。配置好了。
2.專案建立好後, 按下圖上所示圖示!
、
選擇自己剛建立的專案,,點選Add,會出現下面的圖片,在Server上選擇自己的Tomcat版本。確定好,再按下右邊的圖片(配置圖示的右邊!),啟動Tomcat,成功的標誌是如下圖片。
(有點累,我有一篇文章就是寫這個的,複製累死我了)!
輸入的賬號密碼是在Test.java類裡面。
輸入正確的賬號密碼會跳轉到lzt.jsp介面。錯誤可以重新輸入(在原來介面)。
每天努力一點,加油!