架构：
===============================struts2 核心接口和类=========================
名称 作用
ActionMapper 根据请求的URI查找是否存在对应Action调用
ActionMapping 保存调用Action的映射信息，如namespace、name等
ActionProxy 在XWork和真正的Action之间充当代理
ActionInvocation 表示Action的执行状态，保存拦截器、Action实例
Interceptor 在请求处理之前或者之后执行的Struts 2组件
===============================struts2 拦截器=========================
struts2大多数核心功能是通过拦截器实现，每个拦截器完成某项功能，拦截器之间可以互相自由组合
拦截器方法在Action执行之前或执行之后
拦截器栈
1.结构：相当于多个拦截器的组合
2.功能：也是拦截器
与过滤器原理相似
为Action提供附加功能，无须修改Action代码，使用拦截器来提供
三阶段执行周期：
1.Action执行前的预处理
2.将控制交给后续拦截器或者返回字符串（执行Action）
3.Action执行后的处理
范例：
1 public class MyTimeInterceptor extends AbstractInterceptor {
2 /* (non-Javadoc)
3 * @see com.opensymphony.xwork2.interceptor.AbstractInterceptor#intercept(com.opensymphony.xwork2.ActionInvocation)
4 */
5 @Override
6 public String intercept(ActionInvocation actionInvocation) throws Exception {
7 //预处理工作
8 System.out.println("执行Action之前");
9 long startTime = System.currentTimeMillis();
10
11 //执行后续拦截器或Action
12 String result = actionInvocation.invoke();
13
14 //后续处理工作
15 System.out.println("执行Action之后");
16 long execTime = System.currentTimeMillis() - startTime;
17 System.out.println("The interval time is "+execTime+" ms");
18
19 //返回结果字符串
20 return result;
21 }
22 }
拦截器的xml配置：struts.xml
1 <?xml version="1.0" encoding="UTF-8"?> 2 <!DOCTYPE struts PUBLIC "-//Apache Software Foundation//DTD Struts Configuration 2.3//EN" "http://struts.apache.org/dtds/struts-2.3.dtd" > 3 <struts> 4 <!-- namespace是请求路径 --> 5 <package name="default" namespace="/" extends="struts-default"> 6 7 <!-- 配置拦截器 --> 8 <interceptors> 9 <!-- 定义单个拦截器 --> 10 <interceptor name="myTime" class="com.Elastic.StrutsDemo3.ivy.interceptor.MyTimeInterceptor"></interceptor> 11 <interceptor name="authorization" class="com.Elastic.StrutsDemo3.ivy.interceptor.AuthorizationInterceptor"></interceptor> 12 13 <!-- 自定义拦截器栈 --> 14 <interceptor-stack name="myDefault"> 15 <interceptor-ref name="myTime"></interceptor-ref> 16 <interceptor-ref name="defaultStacks"></interceptor-ref> 17 </interceptor-stack> 18 19 </interceptors> 20 21 <action name="login" class="com.Elastic.StrutsDemo3.ivy.action.UserAction" method="login"> 22 <result name="success" type="redirectAction">index</result> 23 <!-- 引用拦截器 --> 24 <interceptor-ref name="myTime"></interceptor-ref> 25 <!-- 引用Struts默认的拦截器栈。如果用了自定义拦截器，一定要加载struts-default中的defaultStacks --> 26 <interceptor-ref name="defaultStacks"></interceptor-ref> 27 28 <!-- 引用拦截器栈 --> 29 <!-- <interceptor-ref name="myDefault"></interceptor-ref> --> 30 </action> 31 32 </package> 33 </struts>
自带拦截器
1.params拦截器：负责将请求参数设置为Action属性
2.servletConfig拦截器：将源于servlet API的各种对象注入到Action
3.fileUpload拦截器：对文件上传提供支持
4.exception拦截器：捕获异常，并将异常映射到自定义d错误页面
5.validation拦截器：调用验证框架进行数据验证
6.workflow拦截器：调用Action类的validate()，执行数据验证
自定义拦截器：
void init()：初始化拦截器所需资源
void destroy()：释放在init()中分配的资源
String intercept(ActionInvocation actionInvocation) throws Exception：
1.实现拦截器功能
2.利用ActionInvocation参数获取Action状态
3.返回结果码（result）字符串
继承AbstractInterceptor类
1.提供了init()和destroy()方法的空实现
2.只需要实现intercept方法即可
3.推荐使用
范例：权限验证拦截器
1 public class AuthorizationInterceptor extends AbstractInterceptor {
2 public String intercept(ActionInvocation invocation) throws Exception{
3 //获取用户会话信息
4 Map session = invocation.getInvocationContext().getSession();
5 User user = (User)session.get("login");
6 if (user == null) {
7 //终止执行,返回登录页面
8 return Action.LOGIN;
9 } else {
10 //继续执行剩余的拦截器和Action
11 return invocation.invoke();
12 }
13 }
14 }
===================================文件上传下载==========================
一、文件上传
Commons-FileUpload组件
Commons是Apache开放源代码组织的一个Java子项目，其中的FileUpload是用来处理HTTP文件上传的子项目
特点：
a.使用简单：可以方便地嵌入到JSP文件中，编写少量代码即可完成文件的上传功能
b.能够全程控制上传内容
c.能够对上传文件的大小、类型进行控制
环境要求：commons-fileupload-xxx.jar commons-io-xxx.jar(在 struts2 的jar包中查找)
范例：
1 public class UploadAction extends ActionSupport {
2 private File upload;
3 private String uploadContentType;
4 private String uploadFileName;
5 private String savePath;
6 //…省略set和get方法
7 public String execute() throws Exception {
8 FileInputStream fis=new FileInputStream(getUpload());
9 FileOutputStream fos=new FileOutputStream(getSavePath()+"\\”+this.getUploadFileName());
10 }
11 }
1 <s:form action="upload.action" enctype="multipart/form-data" method="post"> 2 <s:file name="upload" label="选择文件"/> 3 </s:form> 4 5 <action name="upload" class="com.xuetang9.demo.action.UploadAction"> 6 <!--通过param参数设置保存目录的路径--> 7 <param name="savePath">/upload</param> 8 <result name="success">/upload_success.jsp</result> 9 </action>
多文件上传
【name属性相同】
将三个属性的类型修改成数组类型
//获取提交的多个文件
private File[] upload;
//封装上传文件的类型
private String[] uploadContentType;
//封装上传文件名称
private String[] uploadFileName;
二、文件下载
stream结果类型
1.将文件数据（通过InputStream获取）直接写入响应流
2.相关参数的配置
名称 作用
contentType 设置发送到浏览器的MIME类型
contentLength 设置文件的大小
contentDisposition 设置响应的HTTP头信息中的Content-Disposition参数的值(一方面表示文件的处理方式，另一方面指定下载文件的显示文件名称)
inputName 指定Action中提供的inputStream类型的属性名称
bufferSize 设置读取和下载文件时的缓冲区大小
contentType：指定文件下载的类型
文件类型 类型设置
Word application/msword
Execl application/vnd.ms-excel
PPT application/vnd.ms-powerpoint
图片 image/gif ， image/bmp，image/jpeg
文本文件 text/plain
html网页 text/html
可执行文件 application/octet-stream
范例：
1 public class FileDownAction extends ActionSupport {
2 //读取下载文件的目录
3 private String inputPath;
4 //下载文件的文件名
5 private String fileName;
6 //下载文件的类型
7 private String conetntType;
8 //创建InputStream输入流
9 public InputStream getInputStream() throws FileNotFoundException{
10 String path=ServletActionContext.getServletContext().getRealPath(inputPath);
11 return new BufferedInputStream(new FileInputStream(path+"\\"+fileName));
12 }
13 }
1 <action name="download" class="com.xuetang9.demo.action.FileDownAction">
2 <param name="inputPath">/upload</param>
3
4 <!-- 指定类型为stream -->
5 <result name="success" type="stream">
6
7 <!-- 通用设置 -->
8 <param name="contentType">application/octet-stream</param>
9 <param name="inputName">inputStream</param>
10 <param name="contentDisposition">
11 <!--
12 attachement表示以附件形式下载
13 filename表示下载时显示的文件名称
14 -->
15 attachment;filename="${fileName}"
16 </param>
17 <param name="bufferSize">4096</param>
18 </result>
19 </action>
只有首页用，清除session内容
范例：
1.实体类及其配置文件
a.User类
1 package com.Elastic.StrutsDemo3.ivy.entity;
2
3 import java.io.Serializable;
4 public class User implements Serializable{
5 private String userName;
6 private String passWord;
7
8 public String getUserName() {
9 return userName;
10 }
11 public void setUserName(String userName) {
12 this.userName = userName;
13 }
14 public String getPassWord() {
15 return passWord;
16 }
17 public void setPassWord(String passWord) {
18 this.passWord = passWord;
19 }
20 }
b.User.hbm.xml
1 <?xml version="1.0" encoding="UTF-8"?> 2 <!DOCTYPE hibernate-mapping PUBLIC "-//Hibernate/Hibernate Mapping DTD 3.0//EN" 3 "http://hibernate.sourceforge.net/hibernate-mapping-3.0.dtd"> 4 <hibernate-mapping> 5 <class name="com.Elastic.StrutsDemo3.ivy.entity.User" table="user"> 6 <id name="userName" type="java.lang.String"> 7 <column name="userName"></column> 8 <generator class="assigned"></generator> 9 </id> 10 <property name="passWord" type="java.lang.String"> 11 <column name="passWord"></column> 12 </property> 13 </class> 14 </hibernate-mapping>
2.action包
a.UserAction类
1 package com.Elastic.StrutsDemo3.ivy.action;
2
3 import com.Elastic.StrutsDemo3.ivy.entity.User;
4 import com.opensymphony.xwork2.ActionContext;
5 import com.opensymphony.xwork2.ActionSupport;
6 public class UserAction extends ActionSupport{
7 private User user;
8
9 public User getUser() {
10 return user;
11 }
12
13 public void setUser(User user) {
14 this.user = user;
15 }
16
17 public String login(){
18 System.out.println("执行登录功能！");
19 if ("admin".equals(user.getUserName().trim()) && "123456".equals(user.getPassWord().trim())) {
20 ActionContext.getContext().getSession().put("loginUser", "admin");
21 return SUCCESS;
22 }
23 return LOGIN;
24 }
25 }
b.IndexAction类
1 package com.Elastic.StrutsDemo3.ivy.action;
2
3 import com.opensymphony.xwork2.ActionContext;
4 import com.opensymphony.xwork2.ActionSupport;
5 public class IndexAction extends ActionSupport{
6 private String data;
7
8 public String getData() {
9 return data;
10 }
11
12 public void setData(String data) {
13 this.data = data;
14 }
15
16 public String index(){
17 System.out.println("查询数据");
18 data = "从数据库中得到了数据";
19 ActionContext.getContext().getSession().put("data", data);
20 return SUCCESS;
21 }
22 }
c.上传文件 -- FileAction类
1 package com.Elastic.StrutsDemo3.ivy.action;
2
3 import java.io.File;
4 import java.io.FileInputStream;
5 import java.io.FileNotFoundException;
6 import java.io.FileOutputStream;
7 import java.io.IOException;
8 import java.io.InputStream;
9 import java.io.UnsupportedEncodingException;
10
11 import org.apache.struts2.ServletActionContext;
12
13 import com.opensymphony.xwork2.ActionSupport;
14 public class FileAction extends ActionSupport{
15 //文件夹的名称与表单name属性值一致
16 private File head;
17 //文件类型（后缀固定写法）
18 private String headContentType;
19 //文件名称（后缀固定写法）
20 private String headFileName;
21
22 public File getHead() {
23 return head;
24 }
25
26 public void setHead(File head) {
27 this.head = head;
28 }
29
30 public String getHeadContentType() {
31 return headContentType;
32 }
33
34 public void setHeadContentType(String headContentType) {
35 this.headContentType = headContentType;
36 }
37
38 public String getHeadFileName() {
39 return headFileName;
40 }
41
42 public void setHeadFileName(String headFileName) {
43 this.headFileName = headFileName;
44 }
45
46 /**
47 * 文件上传
48 * @return
49 * @throws IOException
50 */
51 public String fileUpload() throws IOException {
52 //1.读成二进制文件
53 FileInputStream fis = new FileInputStream(head);
54 //虚拟路径--项目下
55 String path = "/head/" + headFileName;
56 //绝对路径 -- 物理路径
57 String realPath = ServletActionContext.getServletContext().getRealPath(path);
58 //获取文件的总大小
59 int length = fis.available();
60 //读成二进制文件
61 byte[] buffers = new byte[length];
62 fis.read(buffers);
63
64 //2.输出文件
65 FileOutputStream fos = new FileOutputStream(realPath);
66 fos.write(buffers);
67 fis.close();
68 fos.close();
69 return SUCCESS;
70 }
71 }
c2.下载文件 -- FileAction类
1 package com.Elastic.StrutsDemo3.ivy.action;
2
3 import java.io.File;
4 import java.io.FileInputStream;
5 import java.io.FileNotFoundException;
6 import java.io.FileOutputStream;
7 import java.io.IOException;
8 import java.io.InputStream;
9 import java.io.UnsupportedEncodingException;
10
11 import org.apache.struts2.ServletActionContext;
12
13 import com.opensymphony.xwork2.ActionSupport;
14 public class FileAction extends ActionSupport {
15 // 文件夹的名称与表单name属性值一致
16 private File head;
17 // 文件类型（后缀固定写法）
18 private String headContentType;
19 // 文件名称（后缀固定写法）
20 private String headFileName;
21
22 private String savePath;
23
24 public String getSavePath() {
25 return savePath;
26 }
27
28 public void setSavePath(String savePath) {
29 this.savePath = savePath;
30 }
31
32 public File getHead() {
33 return head;
34 }
35
36 public void setHead(File head) {
37 this.head = head;
38 }
39
40 public String getHeadContentType() {
41 return headContentType;
42 }
43
44 public void setHeadContentType(String headContentType) {
45 this.headContentType = headContentType;
46 }
47
48 public String getHeadFileName() {
49 return headFileName;
50 }
51
52 public void setHeadFileName(String headFileName) {
53 this.headFileName = headFileName;
54 }
55
56 /**
57 * 文件上传
58 *
59 * @return
60 * @throws IOException
61 */
62 public String fileUpload() throws IOException {
63 // 1.读成二进制文件
64 FileInputStream fis = new FileInputStream(head);
65 // 虚拟路径--项目下
66 String path = savePath + "/" + headFileName;
67 // 绝对路径 -- 物理路径
68 String realPath = ServletActionContext.getServletContext().getRealPath(path);
69 // 获取文件的总大小
70 int length = fis.available();
71 // 读成二进制文件
72 byte[] buffers = new byte[length];
73 fis.read(buffers);
74
75 // 2.输出文件
76 FileOutputStream fos = new FileOutputStream(realPath);
77 fos.write(buffers);
78 fis.close();
79 fos.close();
80 return SUCCESS;
81
82 }
83
84 private String fileName;
85
86 public String getFileName() {
87 return fileName;
88 }
89
90 public void setFileName(String fileName) {
91 this.fileName = fileName;
92 }
93
94 private InputStream inputStream;
95
96 public void setInputStream(InputStream inputStream) {
97 this.inputStream = inputStream;
98 }
99
100 public InputStream getInputStream() throws FileNotFoundException {
101
102 try {
103 fileName = new String(fileName.getBytes("iso-8859-1"), "utf-8");
104 String path = "/head/" + fileName;
105 String realPath = ServletActionContext.getServletContext().getRealPath(path);
106 inputStream = new FileInputStream(realPath);
107 } catch (Exception e) {
108 e.printStackTrace();
109 }
110 return inputStream;
111 }
112 }
3.interceptor包
a.MyTimeInterceptor类
1 package com.Elastic.StrutsDemo3.ivy.interceptor;
2
3 import com.opensymphony.xwork2.ActionInvocation;
4 import com.opensymphony.xwork2.interceptor.AbstractInterceptor;
5 public class MyTimeInterceptor extends AbstractInterceptor {
6
7 /* (non-Javadoc)
8 * @see com.opensymphony.xwork2.interceptor.AbstractInterceptor#intercept(com.opensymphony.xwork2.ActionInvocation)
9 */
10 @Override
11 public String intercept(ActionInvocation actionInvocation) throws Exception {
12 System.out.println("执行Action之前");
13 String result = actionInvocation.invoke();
14 System.out.println("执行Action之后");
15 return result;
16 }
17 }
b.AuthorizationInterceptor类
1 package com.Elastic.StrutsDemo3.ivy.interceptor;
2
3 import com.opensymphony.xwork2.Action;
4 import com.opensymphony.xwork2.ActionContext;
5 import com.opensymphony.xwork2.ActionInvocation;
6 import com.opensymphony.xwork2.interceptor.AbstractInterceptor;
7 public class AuthorizationInterceptor extends AbstractInterceptor{
8
9 /* (non-Javadoc)
10 * @see com.opensymphony.xwork2.interceptor.AbstractInterceptor#intercept(com.opensymphony.xwork2.ActionInvocation)
11 */
12 @Override
13 public String intercept(ActionInvocation actionInvocation) throws Exception {
14 System.out.println("登录验证之前");
15 // 执行Action之前判断用户是否登录
16 boolean isLogined = ActionContext.getContext().getSession().containsKey("loginUser");
17 if (!isLogined) {
18 return Action.LOGIN;
19 }
20 String result = actionInvocation.invoke();
21 System.out.println("登录验证之后");
22 return result;
23 }
24 }
4.jsp
a.index.jsp
1 <%-- 引入JSP页面PAGE指令 --%>
2 <%@ page language="java" contentType="text/html; charset=UTF-8"
3 pageEncoding="UTF-8"%>
4 <%-- 引入JSTL标签指令 --%>
5 <%@ taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c" %>
6 <!DOCTYPE html>
7 <html language="zh-CN">
8 <head>
9 <meta charset="utf-8">
10 <!-- 设置浏览器渲染的引擎 -->
11 <meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1">
12 <!-- 设置支持移动设备 -->
13 <meta name="viewport" content="width=device-width, initial-scale=1">
14 <title>首页</title>
15 <!-- 引用bootstrap样式 -->
16 <link rel="stylesheet" type="text/css" href="<%=request.getContextPath() %>/css/bootstrap.min.css">
17 </head>
18 <body>
19
20 <div class="container">
21 ${data }
22 </div>
23
24 <!-- 引用外部JS文件 -->
25 <script type="text/javascript" src="<%=request.getContextPath() %>/js/jquery-2.2.4.js"></script>
26 <script type="text/javascript" src="<%=request.getContextPath() %>/js/bootstrap.min.js"></script>
27
28 </body>
29 </html>
b.login.jsp
1 <%-- 引入JSP页面PAGE指令 --%>
2 <%@ page language="java" contentType="text/html; charset=UTF-8"
3 pageEncoding="UTF-8"%>
4 <%-- 引入JSTL标签指令 --%>
5 <%@ taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c"%>
6 <%@ taglib uri="/struts-tags" prefix="s"%>
7 <!DOCTYPE html>
8 <html language="zh-CN">
9 <head>
10 <meta charset="utf-8">
11 <!-- 设置浏览器渲染的引擎 -->
12 <meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1">
13 <!-- 设置支持移动设备 -->
14 <meta name="viewport" content="width=device-width, initial-scale=1">
15 <title>网页标题</title>
16 <!-- 引用bootstrap样式 -->
17 <link rel="stylesheet" type="text/css" href="<%=request.getContextPath() %>/css/bootstrap.min.css">
18 </head>
19 <body>
20 <s:debug></s:debug>
21 <div class="container-fluid">
22 <div class="panel panel-default center-block" style="width: 500px;">
23 <div class="panel-heading">登录</div>
24 <div class="panel-body">
25 <form action="user/login" method="post" class="form-horizontal">
26 <div class="form-group">
27 <label class="col-md-3 control-label" for="userName">用户名：</label>
28 <div class="col-md-6">
29 <input class="form-control" id="userName" name="user.userName"
30 type="text" autocomplete="off" />
31 </div>
32 <div class="col-md-3">
33 ${fieldErrors.userName[0] }
34 </div>
35 </div>
36 <div class="form-group">
37 <label class="col-md-3 control-label" for="passWord">密码：</label>
38 <div class="col-md-6">
39 <input class="form-control" id="passWord" name="user.passWord"
40 type="password" />
41 </div>
42 <div class="col-md-3">
43
44 </div>
45 </div>
46 <div class="form-group">
47 <input class="btn btn-primary btn-block" type="submit" value="登录" />
48 </div>
49 </form>
50 </div>
51 </div>
52 </div>
53
54 <!-- 引用外部JS文件 -->
55 <script type="text/javascript" src="<%=request.getContextPath() %>/js/jquery-2.2.4.js"></script>
56 <script type="text/javascript" src="<%=request.getContextPath() %>/js/bootstrap.min.js"></script>
57
58 </body>
59 </html>
c.fileUpload.jsp
1 <%-- 引入JSP页面PAGE指令 --%> 2 <%@ page language="java" contentType="text/html; charset=UTF-8" 3 pageEncoding="UTF-8"%> 4 <%-- 引入JSTL标签指令 --%> 5 <%@ taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c" %> 6 <!DOCTYPE html> 7 <html language="zh-CN"> 8 <head> 9 <meta charset="utf-8"> 10 <!-- 设置浏览器渲染的引擎 --> 11 <meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1"> 12 <!-- 设置支持移动设备 --> 13 <meta name="viewport" content="width=device-width, initial-scale=1"> 14 <title>网页标题</title> 15 <!-- 引用bootstrap样式 --> 16 <link rel="stylesheet" type="text/css" href="<%=request.getContextPath() %>/css/bootstrap.min.css"> 17 </head> 18 <body> 19 <div class="container-fluid"> 20 <form action="upload" enctype="multipart/form-data" method="post"> 21 <input name="head" type="file" /> 22 <input type="submit" value="上传头像" /> 23 </form> 24 </div> 25 26 <!-- 引用外部JS文件 --> 27 <script type="text/javascript" src="<%=request.getContextPath() %>/js/jquery-2.2.4.js"></script> 28 <script type="text/javascript" src="<%=request.getContextPath() %>/js/bootstrap.min.js"></script> 29 30 </body> 31 </html>
d.downLoad.jsp
1 <%-- 引入JSP页面PAGE指令 --%> 2 <%@ page language="java" contentType="text/html; charset=UTF-8" 3 pageEncoding="UTF-8"%> 4 <%-- 引入JSTL标签指令 --%> 5 <%@ taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c" %> 6 <!DOCTYPE html> 7 <html language="zh-CN"> 8 <head> 9 <meta charset="utf-8"> 10 <!-- 设置浏览器渲染的引擎 --> 11 <meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1"> 12 <!-- 设置支持移动设备 --> 13 <meta name="viewport" content="width=device-width, initial-scale=1"> 14 <title>网页标题</title> 15 <!-- 引用bootstrap样式 --> 16 <link rel="stylesheet" type="text/css" href="<%=request.getContextPath() %>/css/bootstrap.min.css"> 17 </head> 18 <body> 19 <div class="container-fluid"> 20 <a href="downLoad?fileName=面试.txt">面试.txt</a> 21 </div> 22 23 <!-- 引用外部JS文件 --> 24 <script type="text/javascript" src="<%=request.getContextPath() %>/js/jquery-2.2.4.js"></script> 25 <script type="text/javascript" src="<%=request.getContextPath() %>/js/bootstrap.min.js"></script> 26 27 </body> 28 </html>
5.Struts配置文件
a1.拦截器 -- struts.xml
1 <?xml version="1.0" encoding="UTF-8"?> 2 <!DOCTYPE struts PUBLIC "-//Apache Software Foundation//DTD Struts Configuration 2.3//EN" "http://struts.apache.org/dtds/struts-2.3.dtd" > 3 <struts> 4 <package name="default" namespace="/" extends="struts-default"> 5 6 <!-- 配置拦截器 --> 7 <interceptors> 8 <!-- 定义单个拦截器 --> 9 <interceptor name="myTime" class="com.Elastic.StrutsDemo3.ivy.interceptor.MyTimeInterceptor"></interceptor> 10 <interceptor name="authorization" class="com.Elastic.StrutsDemo3.ivy.interceptor.AuthorizationInterceptor"></interceptor> 11 12 <!-- 自定义拦截器栈 --> 13 <interceptor-stack name="myDefault"> 14 <interceptor-ref name="myTime"></interceptor-ref> 15 <interceptor-ref name="defaultStack"></interceptor-ref> 16 </interceptor-stack> 17 18 <!-- 自定义拦截器栈 --> 19 <interceptor-stack name="myAuthorStack"> 20 <interceptor-ref name="myTime"></interceptor-ref> 21 <interceptor-ref name="authorization"></interceptor-ref> 22 <interceptor-ref name="defaultStack"></interceptor-ref> 23 </interceptor-stack> 24 </interceptors> 25 26 <!-- 全局的result --> 27 <global-results> 28 <result name="login" type="redirect">/login.jsp</result> 29 </global-results> 30 31 <action name="login" class="com.Elastic.StrutsDemo3.ivy.action.UserAction" method="login"> 32 <result name="success" type="redirectAction">index</result> 33 <!-- 方法1 --> 34 <!-- 引用拦截器 --> 35 <!-- <interceptor-ref name="myTime"></interceptor-ref> --> 36 <!-- 引用Struts默认的拦截器栈 --> 37 <!-- <interceptor-ref name="defaultStack"></interceptor-ref> --> 38 39 <!-- 方法2 --> 40 <interceptor-ref name="myDefault"></interceptor-ref> 41 </action> 42 43 <action name="index" class="com.Elastic.StrutsDemo3.ivy.action.IndexAction" method="index"> 44 <result name="success" type="redirect">/index.jsp</result> 45 <!-- 拦截器配置有顺序 --> 46 <!-- 方法1 --> 47 <interceptor-ref name="authorization"></interceptor-ref> 48 <interceptor-ref name="myTime"></interceptor-ref> 49 <!-- 引用Struts默认的拦截器栈 --> 50 <interceptor-ref name="defaultStack"></interceptor-ref> 51 52 <!-- 方法2 --> 53 <!-- <interceptor-ref name="myAuthorStack"></interceptor-ref> --> 54 </action> 55 </package> 56 </struts>
a2.上传文件 -- struts.xml
1 <?xml version="1.0" encoding="UTF-8"?> 2 <!DOCTYPE struts PUBLIC "-//Apache Software Foundation//DTD Struts Configuration 2.3//EN" "http://struts.apache.org/dtds/struts-2.3.dtd" > 3 <struts> 4 <package name="default" namespace="/" extends="struts-default"> 5 6 <!-- 配置拦截器 --> 7 <interceptors> 8 <!-- 定义单个拦截器 --> 9 <interceptor name="myTime" class="com.Elastic.StrutsDemo3.ivy.interceptor.MyTimeInterceptor"></interceptor> 10 <interceptor name="authorization" class="com.Elastic.StrutsDemo3.ivy.interceptor.AuthorizationInterceptor"></interceptor> 11 12 <!-- 自定义拦截器栈 --> 13 <interceptor-stack name="myDefault"> 14 <interceptor-ref name="myTime"></interceptor-ref> 15 <interceptor-ref name="defaultStack"></interceptor-ref> 16 </interceptor-stack> 17 18 <!-- 自定义拦截器栈 --> 19 <interceptor-stack name="myAuthorStack"> 20 <interceptor-ref name="myTime"></interceptor-ref> 21 <interceptor-ref name="authorization"></interceptor-ref> 22 <interceptor-ref name="defaultStack"></interceptor-ref> 23 </interceptor-stack> 24 25 </interceptors> 26 27 <!-- 全局的result --> 28 <global-results> 29 <result name="login" type="redirect">/login.jsp</result> 30 </global-results> 31 32 <action name="login" class="com.Elastic.StrutsDemo3.ivy.action.UserAction" method="login"> 33 <result name="success" type="redirectAction">index</result> 34 <interceptor-ref name="myDefault"></interceptor-ref> 35 </action> 36 37 <action name="index" class="com.Elastic.StrutsDemo3.ivy.action.IndexAction" method="index"> 38 <result name="success" type="redirect">/index.jsp</result> 39 <interceptor-ref name="myAuthorStack"></interceptor-ref> 40 </action> 41 42 <action name="upload" class="com.Elastic.StrutsDemo3.ivy.action.FileAction" method="fileUpload"> 43 <result name="success" type="redirect">/index.jsp</result> 44 </action> 45 46 </package> 47 </struts>
a3.下载文件 -- struts.xml
1 <?xml version="1.0" encoding="UTF-8"?>
2 <!DOCTYPE struts PUBLIC "-//Apache Software Foundation//DTD Struts Configuration 2.3//EN" "http://struts.apache.org/dtds/struts-2.3.dtd" >
3 <struts>
4 <package name="default" namespace="/" extends="struts-default">
5
6 <!-- 配置拦截器 -->
7 <interceptors>
8 <!-- 定义单个拦截器 -->
9 <interceptor name="myTime" class="com.Elastic.StrutsDemo3.ivy.interceptor.MyTimeInterceptor"></interceptor>
10 <interceptor name="authorization" class="com.Elastic.StrutsDemo3.ivy.interceptor.AuthorizationInterceptor"></interceptor>
11
12 <!-- 自定义拦截器栈 -->
13 <interceptor-stack name="myDefault">
14 <interceptor-ref name="myTime"></interceptor-ref>
15 <interceptor-ref name="defaultStack"></interceptor-ref>
16 </interceptor-stack>
17
18 <!-- 自定义拦截器栈 -->
19 <interceptor-stack name="myAuthorStack">
20 <interceptor-ref name="myTime"></interceptor-ref>
21 <interceptor-ref name="authorization"></interceptor-ref>
22 <interceptor-ref name="defaultStack"></interceptor-ref>
23 </interceptor-stack>
24
25 </interceptors>
26
27 <!-- 全局的result -->
28 <global-results>
29 <result name="login" type="redirect">/login.jsp</result>
30 </global-results>
31
32 <action name="login" class="com.Elastic.StrutsDemo3.ivy.action.UserAction" method="login">
33 <result name="success" type="redirectAction">index</result>
34 <interceptor-ref name="myDefault"></interceptor-ref>
35
36 </action>
37
38 <action name="index" class="com.Elastic.StrutsDemo3.ivy.action.IndexAction" method="index">
39 <result name="success" type="redirect">/index.jsp</result>
40 <interceptor-ref name="myAuthorStack"></interceptor-ref>
41 </action>
42
43 <action name="upload" class="com.Elastic.StrutsDemo3.ivy.action.FileAction" method="fileUpload">
44 <param name="savePath">/head</param>
45 <result name="success" type="redirect">/index.jsp</result>
46 </action>
47
48 <action name="downLoad" class="com.Elastic.StrutsDemo3.ivy.action.FileAction">
49 <result type="stream">
50 <param name="contentType">application/octet-stream</param>
51 <param name="inputName">inputStream</param>s
52 <param name="contentDisposition">
53 attachment;fileName=${fileName}
54 </param>
55 </result>
56 </action>
57
58 </package>
59 </struts>
时间： 2024-12-20 13:07:46