使用org.apache.struts.upload.FormFile类上传文件

<form action="upload.do" method="post" enctype="multipart/form-data"> <input type="file" name="file" /> <input type="submit" value="Submit" /> </form>
<?xml version="1.0" encoding="GB18030"?> <web-app xmlns="http://java.sun.com/xml/ns/j2ee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" version="2.4" xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd"> <servlet> <servlet-name>action</servlet-name> <servlet-class>org.apache.struts.action.ActionServlet</servlet-class> <init-param> <param-name>config</param-name> <param-value>/WEB-INF/struts-config.xml</param-value> </init-param> <init-param> <param-name>debug</param-name> <param-value>3</param-value> </init-param> <init-param> <param-name>detail</param-name> <param-value>3</param-value> </init-param> <load-on-startup>0</load-on-startup> </servlet> <servlet-mapping> <servlet-name>action</servlet-name> <url-pattern>*.do</url-pattern> </servlet-mapping> </web-app>
<?xml version="1.0" encoding="GB18030"?> <!DOCTYPE struts-config PUBLIC "-//Apache Software Foundation//DTD Struts Configuration 1.2//EN" "http://struts.apache.org/dtds/struts-config_1_2.dtd"> <struts-config> <form-beans> <form-bean name="uf" type="UploadForm" /> </form-beans> <action-mappings> <action path="/upload" type="UploadAction" name="uf" scope="request" input="/upload_form.html"> </action> </action-mappings> </struts-config>
import org.apache.struts.action.ActionForm; import org.apache.struts.upload.FormFile; public class UploadForm extends ActionForm { private FormFile file; public FormFile getFile() { return file; } public void setFile(FormFile file) { this.file = file; } }
import java.io.BufferedOutputStream; import java.io.File; import java.io.FileNotFoundException; import java.io.FileOutputStream; import java.io.IOException; import java.io.InputStream; import java.io.OutputStream; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; import org.apache.struts.action.Action; import org.apache.struts.action.ActionForm; import org.apache.struts.action.ActionForward; import org.apache.struts.action.ActionMapping; import org.apache.struts.upload.FormFile; public class UploadAction extends Action { @Override public ActionForward execute(ActionMapping mapping, ActionForm form, HttpServletRequest request, HttpServletResponse response) throws Exception { upload(((UploadForm) form).getFile()); return mapping.getInputForward(); } private void upload(FormFile formFile) throws IOException { InputStream inputStream = getInputStream(formFile); File file = new File(getRealPath("upload"), getFileName(formFile)); OutputStream outputStream = new FileOutputStream(file); BufferedOutputStream bufferedOutputStream = new BufferedOutputStream( outputStream); int b = -1; while ((b = inputStream.read()) != -1) { bufferedOutputStream.write(b); } bufferedOutputStream.flush(); bufferedOutputStream.close(); outputStream.close(); inputStream.close(); } private InputStream getInputStream(FormFile file) throws FileNotFoundException, IOException { return file.getInputStream(); } private String getRealPath(String path) { return getServlet().getServletContext().getRealPath(path); } private String getFileName(FormFile file) { return file.getFileName(); } }