1. web.xml 写全文拦截器
WEBROOT--- WEB-INF ---- WEB.XML
<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>
2.写个文件上传页面
WEBROOT--E文件夹下----- upload.jsp
<body>
<form action="${pageContext.request.contextPath }/fileuploadaction" method="post" enctype="multipart/form-data">
用户名:<input type="text" name="username"><br/>
文件:<input type="file" name="file1"><br/>
<input type="submit" value="上传">
</form>
</body>
3. 项目文件下 struts.xml
<struts>
<!-- 二、总配置文件：引入其他所有配置文件 -->
<include file="cn/itcast/e_fileupload/upload.xml"></include>
</struts>
4. 项目src下 建立包： cn.itcast.e_fileupload 下 新建 upload.xml
<?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="upload_" namespace="/" extends="struts-default" abstract="false">
<action name="fileuploadaction" class="cn.itcast.e_fileupload.fileupload" >
<result name="success">/e/success.jsp</result>
</action>
</package>
</struts>
5. cn.itcast.e_fileupload 下新建 fileupload.java
package cn.itcast.e_fileupload;
import java.io.File;
import org.apache.commons.io.FileUtils;
import org.apache.struts2.ServletActionContext;
import com.opensymphony.xwork2.ActionSupport;
public class fileupload extends ActionSupport{
private File file1;
private String file1FileName; //该变量 固定格式 "file1" + FileName(注意大小写)
private String file1ContextType; //该变量 固定格式
public void setFile1(File file1) {
this.file1 = file1;
}
public void setFile1filename(String file1FileName) {
this.file1FileName = file1FileName;
}
public void setFile1contexttype(String file1ContextType) {
this.file1ContextType = file1ContextType;
}
@Override
public String execute() throws Exception {
String path=ServletActionContext.getServletContext().getRealPath("/upload");
File desfile=new File(path,file1FileName);
FileUtils.copyFile(file1, desfile);
return SUCCESS;
}
}
时间： 2024-09-30 00:38:15