开发环境JDK1.8 eclipse struts2-2.3.31
1.创建web项目
2.导入struts2核心jar包
3.更改web.xml配置文件(只要配置好struts2的Filter就好)
4.创建src/struts.xml文件
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
|
<? xml version = "1.0" encoding = "UTF-8" ?> <!DOCTYPE struts PUBLIC "-//Apache Software Foundation//DTD Struts Configuration 2.0//EN" "http://struts.apache.org/dtds/struts-2.0.dtd"> < struts > <!-- 该属性指定需要Struts2处理的请求后缀,该属性的默认值是action,即所有匹配*.action的请求都由Struts2处理。 如果用户需要指定多个请求后缀,则多个后缀之间以英文逗号(,)隔开。 --> < constant name = "struts.action.extension" value = "do" /> <!-- 设置浏览器是否缓存静态内容,默认值为true(生产环境下使用),开发阶段最好关闭 --> < constant name = "struts.serve.static.browserCache" value = "false" /> <!-- 当struts的配置文件修改后,系统是否自动重新加载该文件,默认值为false(生产环境下使用),开发阶段最好打开 --> < constant name = "struts.configuration.xml.reload" value = "true" /> <!-- 开发模式下使用,这样可以打印出更详细的错误信息 --> < constant name = "struts.devMode" value = "true" /> <!-- 默认的视图主题 --> < constant name = "struts.ui.theme" value = "simple" /> <!--<constant name="struts.objectFactory" value="spring" />--> <!--解决乱码 --> < constant name = "struts.i18n.encoding" value = "UTF-8" /> <!-- 指定允许上传的文件最大字节数。默认值是2097152(2M) --> < constant name = "struts.multipart.maxSize" value = "10701096" /> <!-- 设置上传文件的临时文件夹,默认使用javax.servlet.context.tempdir --> < constant name = "struts.multipart.saveDir " value = "d:/tmp" /> < package name = "upload" extends = "struts-default" > < action name = "fileUpload" class = "com.ifan.action.FileUpload" > <!-- 动态设置savePath的属性值 --> < param name = "savePath" >WEB-INF/images</ param > < result name = "success" >/success.jsp</ result > < result name = "input" >/error.jsp</ result > < interceptor-ref name = "fileUpload" > <!-- 文件过滤 --> < param name = "allowedTypes" >image/bmp,image/png,image/gif,image/jpeg</ param > <!-- 文件大小, 以字节为单位 --> < param name = "maximumSize" >1025956</ param > </ interceptor-ref > <!-- 默认拦截器必须放在fileUpload之后,否则无效 --> < interceptor-ref name = "defaultStack" /> </ action > </ package > </ struts > |
5.创建src/com.ifan.action.FileUpload.Java
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
|
package com.ifan.action; import java.io.File; import org.apache.commons.io.FileUtils; import org.apache.struts2.ServletActionContext; import com.opensymphony.xwork2.ActionContext; import com.opensymphony.xwork2.ActionSupport; public class FileUpload extends ActionSupport{ private File[] image; //上传的文件 private String[] imageFileName; //文件名称 private String[] imageContentType; //文件类型 public String execute() throws Exception { ServletActionContext.getRequest().setCharacterEncoding( "UTF-8" ); String realpath = ServletActionContext.getServletContext().getRealPath( "/images" ); System.out.println(realpath); if (image != null ) { File savedir= new File(realpath); if (!savedir.getParentFile().exists()) savedir.getParentFile().mkdirs(); for ( int i= 0 ;i<image.length;i++){ File savefile = new File(savedir, imageFileName[i]); FileUtils.copyFile(image[i], savefile); } } return "success" ; } public File[] getImage() { return image; } public void setImage(File[] image) { this .image = image; } public String[] getImageContentType() { return imageContentType; } public void setImageContentType(String[] imageContentType) { this .imageContentType = imageContentType; } public String[] getImageFileName() { return imageFileName; } public void setImageFileName(String[] imageFileName) { this .imageFileName = imageFileName; } } |
6.创建WebContent/index.jsp ,作为上传文件的页面
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
|
<%@ page language= "java" import = "java.util.*" pageEncoding= "UTF-8" %> <%@ taglib prefix= "s" uri= "/struts-tags" %> <% 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%>" rel= "external nofollow" > <title>My JSP 'hello.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" rel= "external nofollow" > --> </head> <body> <!-- Struts2的文件上传标签 --> <s:form action= "fileUpload" namespace= "/" method= "POST" enctype= "multipart/form-data" > <!-- 该name需要和后台的File类型的名字对应起来,否则将得不到该文件 size 上传文件的大小 --> <s:file name= "image" label= "Select a File to upload" size= "40" /> <s:file name= "image" label= "Select a File to upload" size= "40" /> <s:submit value= "submit" name= "submit" /> </s:form> </body> </html> |
7.创建WebContent/success.jsp 作为文件上传成功跳转的页面,创建WebContent/error.jsp 作为文件上传失败的页面 , 创建WebContent/images文件夹,作为上传文件的存储位置
以上就是本文的全部内容,希望对大家的学习有所帮助,也希望大家多多支持服务器之家。
原文链接:http://blog.csdn.net/ifan138/article/details/61206275