struts2文件上传

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE struts PUBLIC
"-//Apache Software Foundation//DTD Struts Configuration 2.1.7//EN"
"http://struts.apache.org/dtds/struts-2.1.7.dtd">
<struts>
<!-- 上传文件的总开关,配置上传文件的大小,默认值是2M -->
<constant name="struts.multipart.maxSize" value="7097152"></constant>
<package name="upload" namespace="/upload" extends="struts-default">
<action name="uploadAction_*" class="cn.itcast.upload.UploadAction" method="{1}">
<interceptor-ref name="defaultStack">
<!-- 设置上传文件的参数 这里属于第二开关-->
<!-- 设置上传文件的大小,struts2运行时,会调用FileUploadInterceptor中的setMaximumSize(6097152)方法-->
<param name="fileUpload.maximumSize">1097152</param>
<!-- 设置上传文件的允许类型,struts2运行时,会调用FileUploadInterceptor中的setAllowedTypes(...)方法-->
<param name="fileUpload.allowedTypes">application/vnd.ms-excel,application/vnd.ms-powerpoint</param>
<!-- 设置上传文件的允许扩展名,struts2运行时,会调用FileUploadInterceptor中的setAllowedExtensions(,,,)方法-->
<param name="fileUpload.allowedExtensions">txt,ppt</param>
</interceptor-ref>

<result name="success">/upload/success.jsp</result>

<!-- input:固定写法,当上传出错时,要转向input所指向的页面 -->
<result name="input">/upload/error.jsp</result>
</action>

<action name="uploadsAction_*" class="cn.itcast.upload.UploadsAction" method="{1}">
<result name="success">/upload/success.jsp</result>
<!-- input:固定写法,当上传出错时,要转向input所指向的页面 -->
<result name="input">/upload/error.jsp</result>
</action>
</package>
</struts>

package cn.itcast.upload;

import java.io.File;
import java.io.IOException;

import javax.servlet.ServletContext;

import org.apache.commons.io.FileUtils;
import org.apache.struts2.ServletActionContext;

import com.opensymphony.xwork2.ActionSupport;

@SuppressWarnings("serial")
public class UploadAction extends ActionSupport {

//<input type="file" name="uploadImage">,保存上传文件
private File uploadImage;

//文件的类型,定义格式:jsp页面上传的文件名+ContentType,这里是uploadImage+ContentType=uploadImageContentType
private String uploadImageContentType;

//文件的名字:定义格式jsp页面上传的文件名+FileName,这里是uploadImage+FileName=uploadImageFileName
private String uploadImageFileName;

public String saveFile(){
System.out.println("xxxxxxxxxx");

ServletContext sc=ServletActionContext.getServletContext();
String realpath=sc.getRealPath("/pic");

File file=new File(realpath,uploadImageFileName);

try {
FileUtils.copyFile(uploadImage, file);
} catch (IOException e) {
e.printStackTrace();
}

return "success";
}

public File getUploadImage() {
return uploadImage;
}

public void setUploadImage(File uploadImage) {
this.uploadImage = uploadImage;
}

public String getUploadImageContentType() {
return uploadImageContentType;
}

public void setUploadImageContentType(String uploadImageContentType) {
this.uploadImageContentType = uploadImageContentType;
}

public String getUploadImageFileName() {
return uploadImageFileName;
}

public void setUploadImageFileName(String uploadImageFileName) {
this.uploadImageFileName = uploadImageFileName;
}

}

package cn.itcast.upload;

import java.io.File;
import java.io.IOException;

import javax.servlet.ServletContext;

import org.apache.commons.io.FileUtils;
import org.apache.struts2.ServletActionContext;

import com.opensymphony.xwork2.ActionSupport;

@SuppressWarnings("serial")
public class UploadsAction extends ActionSupport {

//<input type="file" name="uploadImage">,保存上传文件
private File[] uploadImages;

//文件的类型,定义格式:jsp页面上传的文件名+ContentType,这里是uploadImage+ContentType=uploadImageContentType
private String[] uploadImagesContentType;

//文件的名字:定义格式jsp页面上传的文件名+FileName,这里是uploadImage+FileName=uploadImageFileName
private String[] uploadImagesFileName;

public String saveFiles(){
ServletContext sc=ServletActionContext.getServletContext();
String realpath=sc.getRealPath("/pic");
try {
if(uploadImagesContentType!=null&&uploadImagesContentType.length>0){
for(int i=0;i<uploadImagesContentType.length;i++){
File file=new File(realpath,uploadImagesFileName[i]);
FileUtils.copyFile(uploadImages[i], file);
}
}
} catch (IOException e) {
e.printStackTrace();
}
return "success";
}

public File[] getUploadImages() {
return uploadImages;
}

public void setUploadImages(File[] uploadImages) {
this.uploadImages = uploadImages;
}

public String[] getUploadImagesContentType() {
return uploadImagesContentType;
}

public void setUploadImagesContentType(String[] uploadImagesContentType) {
this.uploadImagesContentType = uploadImagesContentType;
}

public String[] getUploadImagesFileName() {
return uploadImagesFileName;
}

public void setUploadImagesFileName(String[] uploadImagesFileName) {
this.uploadImagesFileName = uploadImagesFileName;
}

}