1.web.xml
<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns="http://xmlns.jcp.org/xml/ns/javaee"
xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-app_3_1.xsd"
version="3.1">
<display-name>StrutsDemo</display-name>
<filter>
<filter-name>struts2</filter-name>
<filter-class>org.apache.struts2.dispatcher.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>
2.struts.xml
<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE struts PUBLIC
"-//Apache Software Foundation//DTD Struts Configuration 2.5//EN"
"http://struts.apache.org/dtds/struts-2.5.dtd">
<struts>
<!--bean 標籤用於創建一個JavaBean實例 -->
<!--constant 標籤用於默認行爲 -->
<!--package 包標籤用於區分不同的請求，比如網站前臺請求、網站後臺請求 -->
<!--配置web默認編碼集，相當於HttpServletRequest.setChartacterEncoding用法 -->
<constant name="struts.i18n.encoding" value="UTF-8"></constant>
<!--默認我們struts2的請求後綴是.action，也就是說我們不配置該元素，action/do都可以 -->
<constant name="struts.action.extension" value="action,do"></constant>
<!--設置瀏覽器是否緩存靜態內容，默認值是true，在我們開發階段建議關閉，防止修改後測試失敗 -->
<constant name="struts.serve.static.browserCache" value="false"></constant>
<!--當struts配置文件修改後，系統是否自動重新加載該文件，默認爲false -->
<constant name="struts.configuration.xml.reload" value="true"></constant>
<!--開發模式下使用，這樣可以打印出更加詳細的錯誤信息 -->
<constant name="struts.devMode" value="true"></constant>
<!--默認視圖主題 -->
<constant name="struts.ui.theme" value="simple"></constant>
<!-- 是否開啓動態方法調用 -->
<constant name="struts.enable.DynamicMethodInvocation" value="false" />
<!--name包名，用於被別的包調用或繼承 namespace="" -->
<package name="uweb" extends="struts-default">
<interceptors>
<interceptor name="CheckInter" class="com.jike.interceptor.CheckInterceptor">
<!--定義屬性 -->
<!-- <param name="someThing">admin</param> -->
</interceptor>
<!--方法攔截器 -->
<interceptor name="MethodInter"
class="com.jike.interceptor.MethodInterceptor">
<param name="includeMethods">add</param>
<!-- <param name="excludeMehods">show</param> -->
</interceptor>
<!--攔截方法棧 -->
<interceptor-stack name="UserInter">
<interceptor-ref name="CheckInter"></interceptor-ref>
<interceptor-ref name="defaultStack"></interceptor-ref>
</interceptor-stack>
</interceptors>
<!--自定義默認攔截器 -->
<default-interceptor-ref name="UserInter" />
<!--全局返回結果 -->
<global-results>
<result name="error">/login.jsp</result>
<result name="success">/success.jsp</result>
</global-results>
<!-- <global-allowed-methods>regex:.*</global-allowed-methods> -->
<!--action相當於以前的servlet的概念，對應一個請求name爲請求地址的url地址 localhost:8080/項目名/user/login.do -->
<action name="login" class="com.jike.action.LoginAction">
<!--定義攔截器，這樣就不會走 自定義默認攔截器 -->
<interceptor-ref name="defaultStack"></interceptor-ref>
<result name="success">/index.jsp</result>
<result name="error">/login.jsp</result>
</action>
<action name="*_*" class="com.jike.action.{1}" method="{2}">
<interceptor-ref name="MethodInter"></interceptor-ref>
<interceptor-ref name="defaultStack"></interceptor-ref>
<result name="success">/success.jsp</result>
<allowed-methods>add,show,update,delete</allowed-methods>
</action>
<!-- <action name="UserAction" class="com.jike.action.UserAction" method="*">
<result name="success">/success.jsp</result> <allowed-methods>regex:.*</allowed-methods>
</action> -->
</package>
</struts>
3.login.jsp
<%@ page language="java" contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8"%>
<%
String path = request.getContextPath();
String basePath = request.getScheme() + "://" + request.getServerName() + ":" + request.getServerPort()
+ path + "/";
%>
<!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>Insert title here</title>
</head>
<body>
<form action="<%=path%>/login.action" method="post">
username: <input type="text" name="username" /><br /> password: <input
type="password" name="password" /><br /> <input type="submit"
value="submit" /> <input type="reset" value="reset" />
</form>
</body>
</html>
4.index.jsp
<%@ page language="java" contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8"%>
<%
String path = request.getContextPath();
String basePath = request.getScheme() + "://" + request.getServerName() + ":" + request.getServerPort()
+ path + "/";
%>
<!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>Insert title here</title>
</head>
<body>
<h3>This is index.jsp</h3>
<h3>用戶</h3>
<a href="<%=path%>/UserAction_add.action">add</a>
<br>
<a href="<%=path%>/UserAction_show.action">show</a>
<br>
<h3>新聞</h3>
<a href="<%=path%>/NewsAction_add.action">add</a>
<br>
<a href="<%=path%>/NewsAction_show.action">show</a>
<br>
</body>
</html>
4.success.jsp
<%@ page language="java" contentType="text/html; charset=ISO-8859-1"
pageEncoding="ISO-8859-1"%>
<!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=ISO-8859-1">
<title>Insert title here</title>
</head>
<body>
<h3>This is success.jsp</h3>
</body>
</html>
5.LoginAction.java
package com.jike.action;
import org.apache.struts2.ServletActionContext;
import com.opensymphony.xwork2.ActionSupport;
public class LoginAction extends ActionSupport {
private static final long serialVersionUID = 1L;
private String username;
private String password;
public String execute() throws Exception {
if (username.equals("admin") && password.equals("123456")) {
ServletActionContext.getRequest().getSession().setAttribute("username", username);
return "success";
} else {
return "error";
}
}
public String getUsername() {
return username;
}
public void setUsername(String username) {
this.username = username;
}
public String getPassword() {
return password;
}
public void setPassword(String password) {
this.password = password;
}
}
6.CheckInterceptor.java
package com.jike.interceptor;
import org.apache.struts2.ServletActionContext;
import com.opensymphony.xwork2.ActionInvocation;
import com.opensymphony.xwork2.interceptor.Interceptor;
import com.sun.net.httpserver.Authenticator.Success;
public class CheckInterceptor implements Interceptor {
/**
*
*/
private static final long serialVersionUID = -5836201303675971816L;
@Override
public void init() {
System.out.println("Interceptor init");
}
@Override
public String intercept(ActionInvocation arg0) throws Exception {
String url = "";
System.out.println("start Interceptor intercept");
if (null != ServletActionContext.getRequest().getSession().getAttribute("username")) {
/*url = arg0.invoke();*/
url = "success";
} else {
url = "error";
}
return url;
}
@Override
public void destroy() {
System.out.println("Interceptor destroy");
}
}
7.MethodInterceptor.java
package com.jike.interceptor;
import com.opensymphony.xwork2.ActionInvocation;
import com.opensymphony.xwork2.interceptor.MethodFilterInterceptor;
public class MethodInterceptor extends MethodFilterInterceptor {
/**
*
*/
private static final long serialVersionUID = 7016796101531331454L;
@Override
protected String doIntercept(ActionInvocation arg0) throws Exception {
System.out.println("start MethodInterceptor doIntercept");
String url = arg0.invoke();
System.out.println("end MethodInterceptor doIntercept");
return url;
}
}