在struts框架下实现文件的上传

由于jspsmartupload上传文件，当前端页面没有file控件时，后端用jspsmartupload控件upload时将会走入一个死循环。现在采用struts自己提供的功能实现文件的上传。
1、前端页面upload.jsp
<html:form action="/filesave.do" styleId="formItem" method="post" enctype="multipart/form-data">
<INPUT class='input-file' type="file" name="theFile">
</html:form>
2、struts-config.xml文件配置
<form-bean name="UploadForm" type="yhp.test.web.UploadForm" />
<action input="/upload.jsp" name="UploadForm" path="/filesave" scope="request" type="yhp.test.web.UploadAction" validate="false">
<forward name="success" path="/success.jsp" />
<forward name="error" path="/error.jsp" />
</action>
3、UploadForm.java文件
package yhp.test.web;

import org.apache.struts.upload.FormFile;
import org.apache.struts.action.ActionForm;

public class UploadForm extends ActionForm {
protected String theText; //使用protected,其它需要上传的form可以继承此form
protected boolean writeFile = true;
protected FormFile theFile;
protected String filePath;

public String getTheText() {
return theText;
}
public void setTheText(String theText) {
this.theText = theText;
}
public FormFile getTheFile() {
return theFile;
}
public void setTheFile(FormFile theFile) {
this.theFile = theFile;
}
public void setWriteFile(boolean writeFile) {
this.writeFile = writeFile;
}
public boolean getWriteFile() {
return writeFile;
}
public void setFilePath(String filePath) {
this.filePath = filePath;
}
public String getFilePath() {
return filePath;
}
public void reset() {
writeFile = false;
}
}

4、UploadAction.java文件
package yhp.test.web;

import java.io.ByteArrayOutputStream;
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 java.util.Date;
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 {
public ActionForward execute(ActionMapping actionMapping,
ActionForm actionForm,
HttpServletRequest httpServletRequest,
HttpServletResponse httpServletResponse) throws
Exception {
if (actionForm instanceof UploadForm) {
// 获取上传的目录
String path = getServlet().getServletContext().getInitParameter("UPLOADPATH");
File f = new File(path);
if (!f.isDirectory()) {
f.mkdir();
}

UploadForm theForm = (UploadForm) actionForm;
String text = theForm.getTheText();
FormFile file = theForm.getTheFile();
String fileName = file.getFileName();
String contentType = file.getContentType();
boolean writeFile = theForm.getWriteFile();
String desFileName=path fileName ;
String size = (file.getFileSize() + " bytes");
try {
InputStream stream = file.getInputStream();
OutputStream bos = new FileOutputStream(strFileName);
byte[] buffer = new byte[file.getFileSize()];
stream.read(buffer);
bos.write(buffer);
stream.close();
bos.close();
return actionMapping.findForward("success");
}
catch (FileNotFoundException fnfe) {
return actionMapping.findForward("success");
}
catch (IOException ioe) {
return actionMapping.findForward("success");
}
catch(Exception eo){
return actionMapping.findForward("error");
}
}else{
return actionMapping.findForward("error");
}
}
}